The method of manufacturing according to analytical data compensatory pipes and device for its implementation (options)

 

(57) Abstract:

The group of inventions relates to the production of compensatory pipe, mainly used in shipbuilding. The method of manufacturing according to analytical data compensatory pipes with any number of bends involves the sequential execution of operations by purpose amount of compensatory curves pipes and their location on the basis of conditions of zataskannost area where it will be located, the measurement of linear and angular dimensions characterizing the relative position of the flanges of the main pipe and bolt holes, as well as the measurement of the coordinates of the end point of each curve, except the first and last transfer of data into the computer, determine on the basis of obtained data the geometric parameters of compensatory pipe cutting, bending and Assembly with flanges that pipe on the received size. Measurement, retention and accumulation of this information measuring device is equipped with an electronic control unit receiving and storing information and an intermediate angular head, while intermediate and each end goniometer head has a body made respectively in the form of Odeon the plant and its trunnions in the bearings forks buildings, moreover, the sensors of the movements connected with the electronic unit having an output for connection to the computer and the angle-finders is considered and rod are fixed to each other via a detachable telescopic connection. Detachable telescopic connection is made in the form of a pin and capture, each of which is mounted on the ends of the angle-finders is considered and rods, with the capture contains the Cam latch and the pin - socket under the latch. Device for the Assembly of pipe with flanges on the analytical information has fixtures for clamping pipes, providing her fixation with both ends on the outer surface. Fixtures contain ramcity forks, one of which is articulated support with the trunnion axis of the positioner, the other with a lug shaft gimbal, each ramatou plug installed on the axes of the internal frame, which guides the linear movement of the actuator clamping prisms having the ability to rotate together with the inner frame around the axis, with a stationary base element and racetech forks. Technical result achieved from the application of the proposed method and devices for its implementation is that it offers the opportunity to develop analytical infoa mainly for shipbuilding, in particular, to a technology of compensatory pipes connecting the main pipe systems and pipelines, and can be used in ship repair, energy, construction, heavy and chemical engineering.

A known method of manufacturing a compensatory pipes, allowing to determine the full range of necessary dimensions to perform cutting, bending and Assembly compensatory pipe flange [1] using special measuring devices [2], to determine the relative position of the ends of the pipeline.

The measuring device containing a telescopic rod attached to them integral angle-finders is considered with the scales and verniers, established by means of attachment points and based on the flanges of the main pipes in a single fixed position. With scales measuring device read the dimensions that uniquely determine the mutual position of the ends of the main pipes. By counting the dimensions define the length of the straight sections compensatory pipes, angles, curves, and angles between the planes of the bends for pipes with a number of bends no more than two. According to certain dimensions of the bend pipe in the shop on the pipe bending machine with software is aliciously information with the use of the known device for the Assembly of pipe with flanges [3].

Device for assembling pipe flange has a frame with two positioners. Each positioner is equipped with a basic element for placement of standard flange compensatory pipe and sliding collet fixture to clamp the pipe internal diameter. At least one of the basic elements of the articulated shaft with bearings forks gimbal associated axis of the positioner. The intersection of the axes of the gimbal and the positioner is aligned with the axis of the base element of the second positioner.

The Assembly of the bent pipe flange made in the following sequence. First, in the basic elements of positioners establish and fix the standard flanges compensatory pipe. Then skewer the ends of the pipe gripper sliding device and include the drive. Due to the bending moment arising from the interaction of camshaft fixtures to walls of the pipe, the flanges will occupy the relative position, due to the size read from the measuring device. Geometric axis of the flanges and the ends of the pipes are always combined.

On scales and pointers the device counts the magnitude of the angular and linear dimensions and compare them with those specified in TM-known method [1] and measuring devices [2], they do not provide the possibility of manufacturing a compensatory pipe with a number of bends more than two.

The known method [1] provides a measure of the dimensions characterizing the relative position of the flanges of the main pipe. This is one line and five angular dimensions. This information is sufficient for the mathematical construction of the pipe-insert the number of bends no more than two.

Compensatory pipe with 3, 4, etc. pogibli forced to make by traditional technology using wire templates and layouts, which eliminates the possibility of using highly mechanized cutting, bending and assembling equipment, and thus increases the complexity of processing these tubes. Limitations and possibilities of the known measuring devices [2], which is having minimum number of degrees of freedom is established in a single precise position measurements characterizing the relative position of the flanges of the main pipe. Other dimensions of this device cannot be performed.

The disadvantages of the known measuring device is also low accuracy of measurements, its dependence on the read information with scales and verniers in zatesnennye areas of the premises.

In accordance with the technical documentation permissible deviation of the relative position of the flanges compensatory pipe from theoretical values is two degrees. When such a deviation of the residual of the mounting tension during installation of the pipe is negligible. The distance between the strokes degree scales is limited by the dimensions of the measuring device, and therefore the measurement accuracy is approximately one degree. In the measuring device five degree scale, and the deviation of each reading of the angular size affects the accuracy of the relative position of the flanges compensatory pipe. Therefore, the compensatory production of pipes by a known method, due to the low accuracy of the measuring device, characterized by a high degree of risk and, accordingly, additional work on alteration of pipes.

A disadvantage of the known device for the Assembly of pipe with flanges [3] is an imperfect method of pipe clamping collet on its inner diameter, excluding the possibility of compensation of inaccuracies flexible tube, through the creation of valid values misalignment of the flange and the end portion of the pipe.

Pipe bending equipment characteristics the variance at each bend and deviations during the installation angles between the planes of the curves leads to a total error of sizes, characterizing the relative position of the flanges compensatory pipe, when comparing them with theoretical calculated values. For pipes with a number of bends more than two, the accumulation of total error reaches a critical value, which excludes the possibility of its installation.

In order to compensate for these inaccuracies flexible and zoom relative position of the flanges compensatory pipe to theoretical position of technical documentation for the possibility that non-axial Assembly of the flange with the pipe due to the radial clearance between the bore of the flange and the pipe end. Permissible misalignment during the Assembly of the pipe with the flange should not exceed two degrees. To use such technology in the presence of the camshaft collet fixtures is not possible, therefore, the known device for the Assembly does not provide the ability to build the pipes with the number of bends more than two.

In addition, the center of mass of the pipe complex configuration usually lies at a certain distance from the line connecting the centers of the flanges compensatory pipe. The resulting torque reaches a considerable value, resist, which due to the collet C is also a drawback of the known device for the Assembly of pipe with flanges.

The aim of the invention is to reduce the complexity of compensatory production of pipes, expansion of functionality in the direction of creating conditions for making compensatory pipes with a number of bends more than two.

The positive technical results of the invention also includes the improved accuracy of the measurements, as well as the opportunity to compensate for inaccuracies of the flexible tube, through the creation of valid values misalignment of the flange and the end portion of the pipe.

This objective is achieved in that according to the method of manufacturing according to analytical data compensatory tubes having more than two bends and flanges for connection with a main pipe, comprising the steps of measuring linear and angular dimensions characterizing the relative position of the flanges of the main pipe and bolt holes, determine on the basis of these data the geometric parameters of compensatory pipe, cutting, bending this pipe and build it with flanges designate the number of bends compensatory pipes and their location on the basis of conditions of zataskannost area where it will be located, then measure the coordinates of the end point of each curve, in addition pelaut the dimensions of the intermediate straight portions compensatory pipe, the angles of the bends and angles between the planes of the bends and cut and bend the pipe according to these dimensions.

The coordinates of the end points of each curve is defined in a rectangular coordinate system in space, the beginning of which is placed in the center of the attachment plane of one of the flanges of the main pipes, and one of the coordinate axes combined with the geometric axis of the flange, the other with the center of any bolt holes.

To perform additional measurements, retention and accumulation of this information measuring device is equipped with an electronic control unit receiving and storing information and an intermediate angular head, while intermediate and each end goniometer head has a body made respectively in the form of a single-axis gimbal and a three-axis universal joint, and an electric rotary sensors, mounted on bearings in the supports of buildings, and the displacement sensors connected with the electronic unit having an output for connection to the computer and the angle-finders is considered and a rod fixed to each other via a detachable telescopic connection.

Detachable telescopic connection is made in view of the same latch, and the pin - socket under the latch.

Device for assembling pipes with flanges has a fixture to clamp the pipe, providing its hold on both ends on the outer surface. Fixtures contain ramcity forks, one of which is articulated support with the trunnion axis of the positioner, the other with a lug shaft gimbal, each ramatou plug installed on the axes of the internal frame, which guides the linear movement of the actuator clamping prisms having the ability to rotate together with the inner frame around the axis, with a stationary base element and racetech forks.

In Fig.1 shows the scheme of measurement of angles relative position of the flanges of the main pipe;

in Fig.2 - measuring device;

in Fig.3 - terminal goniometric head, the main view;

in Fig.4 - terminal angular head, a view along arrow A;

in Fig.5 - terminal angular head, a view along arrow B;

in Fig.6 - intermediate angular head;

in Fig. 7 is a device for Assembly of pipe with flanges on the analytical information, the main view, when assembling the pipes with bends in one plane;

in Fig. 8 - a device for Assembly of pipe with flanges on analele Assembly pipe with flanges on the analytical information cross section a-A.

The method is as follows.

In the location of the vessel of Fig. 1 on the flanges 1 and 2 previously mounted main pipes, on the site of the future compensatory pipe (shown by dot-dash) establish and fix the end goniometric head measuring device (not shown). End goniometric head interconnected in any convenient combination of rods, between which is mounted the intermediate axis goniometer head. All rotary sensors (seven pieces) connect the cable to the electronic module.

Based on the conditions of zataskannost area, where the compensatory pipe, designate the number of bends (on the drawing of the three) and their location. Is defined in the space of the location of the point "K", which is the end point of the intermediate bend.

The measurement is performed in the spatial rectangular coordinate system whose origin is placed in the center of the attachment plane of one of the flanges of main pipes (point "O").

Coordinate axis Xaboutcombined with the geometric axis of the flange, Yabout- with the center of any bolt holes selected in pratishta information: number and month of measurement (for identification of pipe); the number of pipes (assigned); the assigned number of bends; the radii of the curves (R1= R2= R3= R) is equal to 1.5 - 2.5 pipe diameter; the length of the first and the last straight section of pipe (appointed); the circuit Assembly of the measuring device, i.e. the codes of the set of items measuring device sequentially from left to right (rod, intermediate angular head, a probe with a tip, and so on ). Then by pressing the "ISM" is the dimension.

If compensatory pipe appointed not more than two bends, the measurement process is completed, because the information on the measurement of the relative position of the flanges of the main pipe is sufficient for the mathematical construction of such compensatory pipe. If compensatory pipe assigned to more than two bends, the measurement process continues in the following sequence.

Disconnect the rod from the right or left end goniometric head and released the end connect the probe with the tip, with a set of barbells can also be changed depending on the distance to the end point of the intermediate curve (point, "K"). With remote control electronic unit is filled in with the new source information: to the goniometer head and changing the angle in the intermediate angular head, set the tip of the noise at point "K", the end point of the intermediate bend. By pressing "Edit" measurement. For compensatory pipe with 4 pogibli write a new schema Assembly and the dimension of the second end point of the intermediate bending is performed in the same sequence.

Remove the measuring device from the flanges 1 and 2 and similarly measure the dimensions for other compensatory pipes.

The electronic unit is connected to the computer that transmitted the recorded information.

In a known method of manufacturing a compensatory pipes [1], the measuring device [2] and device for assembling pipes with flanges [3] used the following set of dimensions that define the relative position of the flanges in the space (see Fig.1):

1). The length of the line L is the shortest distance between the centers of the flanges 1 and 2.

2). Angle - the angle between the axis of the flange 1 and the line L.

3). The angle of the v - angle between the axis of the flange 2 and its projection on a plane And formed by the line L and the axis of the flange 1.

4). Angle - the angle between the line L and the projection of the axis of the flange 2 on the plane And formed by the line L and the axis of the flange 1.

5). Angle1- the angle between the line passing through CNCA 1.

6). Angle2- the angle between the line passing through the centers of the flange 2 and the nearest to the plane And bolt holes, and a plane And formed by the line L and the axis of the flange 1.

This range of sizes selected from conditions provide the most simple, easy to use device for the Assembly of pipe with flanges [3] , however, the direct measurement of these dimensions [2] the design of the measuring device does not allow other dimensions.

The proposed design of the measuring device measures the number of auxiliary parameters are chosen so that each set of values corresponds to a single possible combination of the above set of dimensions that define the relative position of the flanges in the space.

The fundamental sequence of determining the configuration of the pipe is as follows:

1. The measured auxiliary parameters, which characterize the amount of turns in all provided in the measuring device degrees of freedom, and the entered information is applied in the circuit Assembly item rods and other elements are successive rotations and plane-parallel is kordinat XpYpZpand, therefore, the coordinates of the point P in the coordinate system X0Y0Z0-Xp0;Yp0;Zp0direction cosines of the vector axis of the flange 2 - cosXpxo;cosXpyo;cosXpzo; as well as direction cosines of the axis passing through the centers of bolt holes flange - cosZpxo;cosZpyo;cosZpzo.

Formulas for sequential axis rotation and plane-parallel transfer is a well - known [4].

2. Calculated above set of dimensions that define the relative position of the flanges in the space, according to the following formula:

< / BR>
< / BR>
< / BR>
< / BR>
< / BR>
< / BR>
3. For pipes with a number of bends no more than two, given the values of the radii of the curves (R1= R2= R) is equal to 1.5 - 2.5 pipe diameter and lengths of straight end sections (l1= l3= l) equal to 1.0 diameter of the tube, calculated using known formulas [1] the length l2direct area between curves compensatory pipes, angles, bends1and2and angle1between the planes of the bends. The indices in the notation of the lengths of straight lines, angles of 4. For pipes with a number of bends more than two information about the mutual position of the flanges, which determines the position of the only limit curves, is not enough. It is necessary to fix the position in the internal space of curves, i.e., to measure the coordinates of the end point of each curve (point-To - switch curved part of the pipe in a straight line), except the first and the last. Point "K" divides the tube into two parts - the left with two pogibli and right - with one pogibom. First calculate the configuration of the pipe with one pogibom, because for the calculation of the pipe with two pogibli necessary information not only about the position of the point "K", but also about the direction of the third rectilinear section (direction cosines of the vector).

Formulas for this part of the pipe the following:

< / BR>
< / BR>
D = l4sin-Rnorcos;

< / BR>
5. Calculated direction cosines of the third straight section

cosXtoxo;cosXtoyo;cosXtozo;

< / BR>
< / BR>
< / BR>
where In - segment KM

< / BR>
Xm0;Ym0;Zm0- coordinates of the point M in the coordinate system

< / BR>
< / BR>
< / BR>
6. Is determined by the angle between the plane of the/SUB>-Zto0< / BR>
< / BR>
S3x= cosXtoyocosXpzo-cosXtozocosXpxo-cosXtoxocosXpyo-cosXtoyo1,2and1.

The same method of dividing the pipe into sections with one or two pogibli it is possible to calculate the pipe with any number of pohybov, if you are pre-measured coordinates of the end point of each curve, except the first and the last.

Next in size l1,l2,l3,l4,2,3,1,2bend pipe bending machine with software control, for example, STH-ICA or similar.

Then on sizes L,,,v1and2on trubosvarochnom machine [3] collecting pipe with flanges, take their welding and removed from the machine.

The measuring device of Fig.2 contains the adapter 1, which represents a sliding device for location and orientation of the end goniometric head 2 relative to the flanges of the main pipe. The design of the adapter has a screw mechanism for movement in opposite directions using the Allen key 3 two movable support along the axis of movement there are four screw holes 5, in which is screwed a screw fingers 6 to lock the adapter in two diametrically opposite holes of the flanges of the main pipe. The body of the adaptor has a ledge 7 of the dovetail for the mechanical joint end with goniometric head 2, with one of the axes goniometer head coincides with the axis of the flange of the main pipe.

End goniometric head 2 are connected by a rod 8 with telescopic detachable connections 9. Set the meter has rods of different lengths from 50 to 1000 mm, the length of the rod is first class accuracy. Between the rods is mounted intermediate the uniaxial angular head 10, which is connected with the rods also detachable telescopic connection 9. When measuring coordinates of the end point of the curve is used, the probe 11 with tip 12. The tip may be mounted coaxially with the probe (shown by the dotted line) or in an upright position. Electric cable 13 through the connector 14 connects all goniometric head to the electronic unit 15, which also has a special channel 16 for connection to the computer. The electronic unit 15 includes a housing, inside which there are elements of p is caused by the technical conditions LS.036.002 TU. The upper part of the unit is made in the form of a panel with controls and indicators.

End goniometric head 1 of Fig.3, 4 and 5 has a body 17 made in the form of three-axle universal joint with the axis of rotation I-I, II-II and III-III, with the axis I-I perpendicular to the axis II-II and axis II-II perpendicular to the axis III-III.

On each of the axes of rotation II-II and III-III mounted on bearings 18 electric rotary sensors 19, the rotation of the output shaft of the rotor 20 of these sensors is transmitted using a thick-walled rubber ring 21.

The sensor of angular movement 22 is coaxial to the axis of rotation I-I, and torque on its output shaft 23 is transmitted from the base 24 through the gear backlash-free transmission 25, one of the gears mounted on a shaft 26 which rotates in bearings 27.

The rotary sensors are inductive rotary transformer type of 2.5 BVT-D-5 or similar. Each sensor is connected by a wire with two connectors 14 for connecting an electric cable 13.

The base end 24 goniometric head contains a clip-type dovetail 28 for mating with the protrusions 7 of the adapter 1, and a spring-loaded fix what its consequences, then the head is detached from the adapter.

For articulation end goniometer head with the rod on the axis III-III has a pin 31 - piece detachable telescopic connection. The pin has a hollow shaft 32 rotating in bearings 18 and associated with the output shaft of the sensor of angular displacements 19 by means of thick-walled rubber ring 21.

Each end goniometer head has three degrees of freedom: rotation 360 degrees base 24 about the axis I-I, respectively measured angles a and D on the left and right angular head, rotation of the pin 31 and a sensor of angular displacements located on the axis III-III axis II-II at 160 degrees (the position after rotation in Fig.5 is shown by the dotted line), respectively measured angles B and E on the left and right angular head and 360 degrees rotation pin 31 around the axis III-III respectively measured angles C and f

Intermediate angular head 10 of Fig.6 measures the angle between the axes of the rod . These seven measured angles form a set of auxiliary parameters, on the basis of which the calculated configuration of the pipe.

Intermediate angular head 10 of Fig.6 includes a housing 33 made in the form of a cardan joint is a threat to each other at any of the angles in the range of 120 degrees.

Axis IV-IV installed on the bearings 35 of the sensor of angular displacements 36, while the torque from the rotation of the fork 34 is transmitted to the output shaft 37 of the sensor of angular displacements 36 using thick-walled rubber ring 38. The sensor is connected by a wire with a connector 14 for connecting an electric cable 13.

Intermediate the measuring head is uniform clamping parts detachable telescopic connection with one side of the pin 39 with the other hand grip 40.

The jig has an eccentric latch 41 mounted on shaft 42 and is spring-loaded by a spring 43, and the pin has a slot 44, which is the contact surface of the latch 41, when the mechanical coupling pin and capture. Turning the knob to lock detachable telescopic connection can be disassembled.

The measuring device is portable and is used in the compartments as follows.

Between the two flanges of the main pipe, the place of future compensatory pipe, install the measuring device, which screw fingers 6 are screwed up in the corresponding threaded holes 5, equally spaced from the transverse axis of symmetry adapter is not included freely in diametrically opposite bolt holes of the flanges of the main pipe. Pressing adapter 1 to the attachment face of the flange of the main pipe, continue to push the movable support.

Screw the fingers have a small cone coated with slots, so after a strong fastening of the adapter 1, the axle hole of the latch 29, which is located on the protrusion 7 of the adapter 1, in alignment with the axis of the flange of the main pipe. Similar operations for installing adapters are on the other flange of the main pipe.

The adapter 1 is fixed angular end of the head 2, to which the control knob 30, sinking the latch 29, the end of the ledge 7 of the adapter 1 is slid in connection dovetail end goniometric head and push it up until the latch 29 under the action of the spring will not enter into the hole of the adapter, signalling the end goniometric head. Axis I-I end goniometric head in alignment with the axis of the flange of the main pipe.

A set of rods of different lengths contains prostasis a length of 50 mm on both sides and installed the grips 40. On all other rods and intermediate angular head with one hand, set the pin 39 on the other hand grip 40. Using proctavia in the measuring circuit Assembly Marnie head 2 are interconnected by rods 8, why turn the lock knob 41 of the grip rod, insert pin 31 end goniometric head in gripping the rod to the contact end of the pin with the recesses in the shaft 42. After lowering the handle of the latch 41, due to the action of the spring 43, the contact surface of the clamp come into contact with the surface of the slot 44 will press the pin to capture, fixing a detachable telescopic connection. Similar operations are performed for each mechanical joint plug connections.

Between the rods is mounted intermediate the goniometric head.

The rotary sensors are connected to the electronic unit 15 the common terminal 14; on the other hand, the bundles of electric cables have connectors 14 different types to ensure unambiguous inclusion.

The assembled measuring device is carefully inspected and accepted measures to mitigate mounting tensions between the elements of compounds. Optionally enclosed support under the rod or intermediate goniometric head.

By pressing "On" turns the electronic unit, the first meeting of the indicator appears blinking feature, indicating the higher is alternately filling the eight-line indicator in accordance with the previously adopted by the encoding system and the sequence of filling. Each row of the initial information is entered by pressing "Enter".

The measurement operation is performed by pressing the "ISM", with automatic polling of all seven sensors angular movements and record their readings in the memory of the processor is performed almost simultaneously, within not more than 0.2 seconds. You can view the amount of recorded information, clear memory; editing recorded, repeated measurements at the same circuit Assembly and other services.

For information about compensatory pipe with a number of bends more than two measurement process continues, for which separate the rod from the end goniometer head (right or left) and collect on the connectors a new circuit assemblies, suitable for measuring the end point "To" intermediate bend. It is preferable to choose such a circuit Assembly in which it is possible to measure all limit points of intermediate curves. At the end of the selected circuit Assembly is connected to the probe 11 with tip 12.

Due to the degrees of freedom in the end and intermediate angular heads set the tip of the probe at point "K". By pressing "Edit" automatic survey four sensors angular movements and record their readings in the memory of the processor.

For compensatory pipe with 4 pogibli, if the circuit Assembly allows, set the tip of the probe to the second end point of the intermediate bend and make the same measurement.

If you need to change the circuit Assembly, the recording of the new scheme of the Assembly and the measurement made in the same sequence.

Remove the measuring device with flanges, for which an Allen key 3 to move the movable support 4 and have screw-fingers 6 of the bolt holes of the flanges. Repeating the steps of measuring for other compensatory pipes.

After measurements are completed turn off the power by pressing "Off", disconnect the cable connectors from the first electronic unit, then from the connectors of the sensor of angular displacements. The electronic unit is connected to the computer, which transfers all the recorded info is, contains all the analytical information about the pipe, and a sketch of the pipe in three dimensions, indicating dimensions and a picture tube in a perspective view.

Device for the Assembly of pipe with flanges on the analytical information Fig.7, 8 and 9 consists of a frame with a horizontal base 1 with the guides 2. On the guides 2 are placed, the carriage 3 having the possibility of lateral movement of the actuator (figures not shown) with the control knob 4.

To determine the magnitude of the displacement is a linear scale of 5, printed on the base, and the pointer 6 attached to the carriage 3. On the carriage 3 in a bearing unit 7 is installed positioner 8, made in the form of a rack with the pin 9 in the lower part, and ramdata plug 10 installed in the upper hollow portion of the axle 9.

The positioner 8 and ramdata plug 10 are able independently of each free rotation around the vertical axis I-I of the bearing unit 7 and the shaft 11, respectively installed in the positioner 8 and ramatou plug 10. To determine the magnitude of rotation of the positioner 8 is angular scale of 12 printed on the carriage 3, and the pointer 13, attached to the positioner 8.

On the positioner 8 razmeshena, their axis II perpendicular to the axis I-I and intersect at point "A" of the center of the faceplate 14. On the end surface of the faceplate 14 is provided with three clamping Cam 15 for alignment with the faceplate mounting flange. The Cams have the possibility of simultaneous reciprocating movement of the actuator in the radial directions. Work items Cams 15 are made in the form of prisms and the same side, they form a working plane passing through point a and perpendicular to the axis II-II.

In ramatou plug 10 on the axis 16 is an inner frame 17 guides the linear movement of the actuator with the control knob 18 of the clamping prisms 19. Clamping prisms 19 have the ability to rotate together with the inner frame 17 around the axis 16 with a stationary plate 14 and ramatou plug 10. Clamping prisms 19 have the possibility of simultaneous reciprocating linear movement of the actuator.

Based on 1 in a bearing unit 20 has a second positioner 21, made in the form of two racks with the pin 22 in the lower part. The positioner 21 has the capability of free rotation around the vertical axis III-III of the bearing unit 20. To determine the magnitude of rotation of the positioner 21 is angular scales is ousing 25 (Fig. 9) are mounted in the form of a cardan joints on one side of the base element consisting of faceplate 26 is the same as that of the faceplate 14, the clamping jaws 27, on the other hand ramdata plug 28 having a design similar to ramatou plug 10, and consisting of an inner frame 29 mounted on the axis 30, the clamping prisms 31, the moving of the actuator with the control knob 32.

The faceplate 26 and ramdata plug 28 are free, independent from each other tilt around a horizontal axis IV-IV of the lugs 25. To determine the magnitude of the tilt table is designed degree scale 33, attached to the positioner 21, and the pointer 34, attached to the faceplate 26.

Axis V-V faceplate 26 is perpendicular to the horizontal axis IV-IV. Axis III-III, IV-IV intersect at point B, located in the center of the work plane of the clamping jaws 27. In addition, point B is located above the base at the same point A height convenient for maintenance. In addition, the line connecting points A and B of the parallel rails of the base.

The device operates as follows.

In the clamping jaws 15 of the faceplate 14 set the standard flange compensatory pipe and include a travel drive Cams coincides with the plane of the Cams. Fix the flange plate 14. Then, clicking on the floor along the base from the faceplate faceplate 14 to 26, similarly establish and fix a regular flange compensatory pipe.

In accordance with the calculated map-sketch of the pipe angles1and2deploy the flanges in facing heads around the axis II-II and V-V on the corners1and2.

The positioner 8 rotate around the vertical axis I-I by the angle specified in the map-sketch of the pipe, counting the angle on the scale 12 index 13. In this position, the positioner is now.

Ramatou plug 10 tentatively set so that its horizontal axis coincided with the axis of the gear II-II. Similar operations are performed on the positioner 21 by rotating the angle around the vertical axis III-III, counting the angle on the scale 23 with a pointer 24. In addition, the faceplate 26 tilt around the axis IV-IV on the angle v is given in map-sketch of the pipe and measured on a scale 33 with the pointer 34. In this position, the positioner 21 is now. Ramatou plug 28 tentatively set so that its axis coincides with the axis V-V faceplate 26.

In this position, if you install the positioner 21 at a distance "L" is specified in the map-sketch of the pipe, mutual put start from the side of the positioner 21, for which the corresponding end of the tube is passed between a pre-diluted clamping prisms 31, further in the flange until it stops working in the plane of the clamping jaws 27 and include the drive movement of the clamping prisms 31, fixing the pipe. Then go to the positioner 8. Raise the second end of the pipe and include drive horizontal movement of the positioner 8 along the guide rails 2, pass the end of the pipe between pre-diluted clamping prisms 19 and stops the drive of the horizontal movement of the positioner 8. Lower the second end of the pipe clamping prisms 19 and the actuator moving the control knob 18 to fasten the second end of the pipe in a horizontal position.

Turning the tube end together with ramatou fork 10 around the vertical axis I-I and the inner frame 17 about the axis 16, is directed through the pipe end so that he entered into the hole of the fixed flange. If necessary, a similar alignment is performed and the positioner 21, rotating the first end of the pipe in the flange so as to guide the second end into the hole of the flange. Include again the drive of the horizontal movement of the positioner 8, advancing end of the pipe in the flange until it stops in the work plane serialno gap between them. The use of such technology allows to largely offset errors associated with inaccurate flexible pipe.

On the tube, assembled with flanges, check and install in accordance with the data map-sketch of the pipe length L. we catch the flanges to the pipe and remove it from the device.

The technical result from application of the proposed method and devices for its implementation is that it offers the opportunity to develop analytical information of compensatory pipes with a number of bends more than two, i.e. almost the entire range of compensatory pipes. The proposed method provides a measure of the coordinates of end points of each curve, except the first and the last, thereby providing the possibility of making compensatory pipes with any number of bends. The proposed design of the measuring device provides the ability to perform the above measurements. In addition, application in the design of high-precision measuring device of the electric rotary sensors, increased accuracy, eliminate its dependence on illumination of the workplace and the skills of the worker.s with degree scales.

The proposed design of the device for Assembly of pipe with flanges on the analytical information provides for the Assembly clamp tube on its outer diameter that allows to compensate the errors of the flexible tube, through the creation of valid values misalignment of the flange and the end portion of the pipe. This enables the Assembly of pipes with any number of bends. Improves reliability of the pipe clip, it eliminates the need for use of interchangeable collets.

A single inventive concept of the claimed group of inventions for the production of compensatory pipes analytical information with any number of bends is that the proposed method is not feasible using known devices. The proposed device makes it possible to realize a method of manufacturing a compensatory pipe having more than two bends. Similarly, devices are not feasible for the manufacture of compensatory pipe way other than proposed. Thus, the application shall be filed on a group of inventions for making compensatory pipes with any number of bends, and these inventions are related to each other so that they form a single inventive concept, satisfying 0, B 21 D 9/00 1983.

2. USSR author's certificate N 1733913, CL G 01 B 5/24, 1984.

3. USSR author's certificate N 770727, class B 23 P 19/04, 1980.

4. Handbook on mathematics G. Korn and T. Korn. Publishing house "Nauka", 1977. Chapter 3.1.12. and 6.4.

1. The method of manufacturing according to analytical data compensatory tubes having more than two bends and flanges for connection with a main pipe, comprising the steps of measuring linear and angular dimensions characterizing the relative position of the flanges of the main pipe and bolt holes, determine on the basis of these geometrical parameters of the compensatory pipe, cutting, bending this pipe and build it with the flanges, wherein the pre-designate the number of bends compensatory pipes and their location, based on the terms of zataskannost area where it will be located, then when determining linear and angular dimensions, characterizing the relative position of the flanges of the main pipe and bolt holes, measure the coordinates of the end point of each curve, except the first and last, then enter the information into the computer and in accordance with the program determines the size of the intermediate premalignant the size, and its Assembly with flanges carried out also according to the above-mentioned program.

2. The method according to p. 1, characterized in that the coordinates of the end points of each curve is defined in a rectangular coordinate system in space, the beginning of which is placed in the center of the attachment plane of one of the flanges of the main pipes, and one of the coordinate axes combined with the geometric axis of the flange, the other with the center of any bolt holes.

3. Device for measuring analytical information about the geometrical parameters of the compensatory tubes containing rod and fixed on them end goniometric head connected to the nodes securing and locating device on the flanges of the main pipe, characterized in that it is equipped with an electronic unit receiving and storing information and an intermediate angular head, while intermediate and each end goniometer head is made in the form of housing, consisting respectively of the axis gimbal and a three-axis gimbal hinge and electrical rotary sensors, mounted on bearings on the axis of the housing, moreover, the electric rotary sensors connected with e nl is redstem detachable telescopic connection.

4. The device according to p. 2, characterized in that the detachable telescopic connection is made in the form of a pin and capture, each of which is mounted on the ends of the angular heads and rods, with the capture contains the Cam latch and the pin - socket under the latch.

5. Device for Assembly on analytical data pipe flange containing a frame with two positioners, the basic elements for the flanges and with devices for clamping the pipe, the base element is at least one of the positioner is made in the form of gimbal associated axis with the positioner, and the intersection of the axes of the gimbal and the positioner is aligned with the axis of the base element of the other of the positioner, wherein as means for clamping pipes used devices for fixing both ends on the outer surface, each of which is made in the form ramatou fork, one of which is connected to the backbone with the trunnion axis of one of the positioners and the other with a lug shaft gimbal another positioner installed in ramatou plug on the axes of the inner frame and clamping prisms with the possibility of linear movement of the actuator along the guide rails of the inner frame

 

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