Device for the alignment control parts, lift and guidance mechanism

 

(57) Abstract:

The invention is used in the control and measuring equipment. The device comprises a laser emitter 4, the control 5 and work 6 detectors. The emitter 4 and the receiver 5 still placed in centrocytes 1 and 2 in the monitored node. The receiver 6 is placed in the lift 3 is movable in a controlled components. The legs 12 of centrically 2 and 3 secured in the monitored node is stationary magnetic tack 11 and legs 12 of the lift 1 is fixed movably through mechanisms 10 guidance. The plane of the clamp lock mechanism 10 guidance coincides with the pole of the magnet. The magnetic field is closed through one pole of the magnet, the emphasis, the anchor leg 12, the controlled node and the second pole of the magnet, tightly clutching the leg 12 to the anchor node. Moving the anchor, move the legs 12. The lift 1 changes the spatial position of the body. The beam enters the receiver 5 without changing the position of the emitter 4 in lift 1. The elastic mounting of the receiver 6 provides a beam in the receiver 6. The beam has a ring structure. About alignment is judged by the deviation of the spatial position of the beam in the receiver 6 from the reference axis. The lift is repleni guides, are put on the legs 12. The legs 12 are connected by means of a flat rod with the cylinder. Moving at least one of the legs 12 causes a similar movement of the two remaining. Technical result achieved: improving the accuracy, reliability, control, simplifying the design. 3 S. and 1 C.p. f-crystals, 4 Il.

The invention relates to the control and measurement technology, in particular to devices and devices to the measuring device for checking the alignment of parts, and can be used for the installation of steam turbines.

Patent search to identify devices, similar to the proposed device for controlling coaxial parts, revealed the following.

Known devices for controlling the alignment of the parts with the use of telescopes [1] . In this case, a telescope used to work on the alignment of body parts and the alignment of the flow part. On the horizontal connector at the end of the cylinder from the generator set special bracket, which set the tripod for mounting and alignment telescopes PPS-11, in particular, in a position to perform the measurement of the relative position of the centers of the bores. If the observed point does not coincide with Wisliceny this shift telescope provide an optical micrometer, with the help of which you can determine the amount of displacement of this point relative to the sighting line.

The disadvantage of this device to control the alignment of the parts with the help of telescopes is the large dependence of the measurement accuracy from straightness of the sighting line (reference axis) outside the pipe, which in turn depends on external conditions of the measurements and is not eliminated by means of the device. The stability of the position of the sighting line outside of the pipe is violated if within the truncated cone which is formed between vizireanu the subject and the lens tube, falls outside the subject. In this part of the rays coming from the object to the lens, may be cut off and the image will appear to shift relative to the crosshair due to spherical aberration of the lens. In addition, the stability of the position of the sighting line is affected by the constancy of the density of the air throughout a truncated cone. The heterogeneity of the environment in the line of sight is one of the reasons for a significant increase in measurement error, as the image is shifted from its true position.

Thus, the known device for controlling the alignment of the parts when his domestic the ti control by stabilizing the spatial position of the reference axis.

Closest to the proposed device is a device for controlling coaxial parts, containing three of lift, alignment bearings are fixed in the bores, a laser emitter with a ring beam structure, work and control receivers. The laser emitter is installed in the corresponding lift and kinematically connected with the mechanism of the deviation of the laser beam. Working and reference receivers are vidicons cameras and installed in centrically in the corresponding two-coordinate the movement mechanisms. The device provides improved precision control of misalignment due to the circular structure of the beam of the laser emitter, and the possibility of obtaining an enlarged image of the beam [2].

A disadvantage of the known device consists in the following. In the known device the pointing of the beam is carried out by the guidance mechanism kinematically connected with the laser emitter mounted in the lift. This makes it difficult to move the beam when installing the base axis, since touching the lift caused by leaving the beam disrupts the stability of its spatial position, and therefore the stability prostranstva. In addition, to eliminate the measurement error associated with aparallactus axis centers of centrically placed in them by the radiation receivers (operating and test) to the beam axis of the laser oscillator, it is necessary to arrange the receiving elements in the plane of the legs of centrically. In the known device is not feasible because of the significant dimensions of the cameras.

Thus, the known technical solution it is not possible to achieve the technical result consists in increasing the accuracy and reliability of the alignment control parts, by ensuring the stabilization of the spatial position of the reference axis.

The results of the patent search to identify devices, similar to the claimed lift, used in the present invention the Device for controlling the alignment of the parts", revealed the following.

Famous lift for finding the center of the partial cylindrical surface [3], comprising a housing with four basic pillars and a cylindrical mandrel with a target sign. End surface of the case is made based perpendicular to the line of the base supports. The site of the centering cylindrical op is Ryuusei links movably coupled lateral planes with mechanical clamping surface of the housing, perpendicular to the line of the base supports. Measuring the force of the spherical bearings provide a coil spring, and the pressing of the cylindrical mandrel for centering planes moving the centering links provide a leaf spring.

A disadvantage of the known device is that the achievement of the required accuracy is ensured by the complexity of the design, in addition, the device allows you to use it only for installation in the nodes of a single well-defined diameter, which limits its functionality.

Thus, the famous lift in its implementation does not allow to achieve the technical result consists in providing the required accuracy while simplifying the design, and the ability to change the working length of the movable centering sections, the legs of the lift, which limits its functionality.

Closest to the present invention is a lift [4], containing the guide cylinder, combined with a massive hard flange. On the guide cylinder wearing the cone can move along the guide cylinder means located between the surfaces of the balls. Etia, in which are tightly guides the legs of the lift, which are located inside the guide. Guides provide the location of the legs in the same plane perpendicular to the axis of the cone (cylinder axis). The lower leg of the lift is vertical, and two side - angle 2oto the horizon. Legs are always pressed to the generatrix of the cone compression springs through single row ball bearings.

The design of the lift allows for simultaneous and equal movement of all three centering supports. In the position of the smallest diameter of a support set by pressing the outer arm force arm. Thus the cone through a system of internal levers move at its original position. Upon release of the external lever cone is moved in the opposite direction and pushes the legs of the lift. By extension of the legs change the operating range of the diameters of the lift.

A disadvantage of the known devices is that the required accuracy of the device is obtained by the design complexity. Complex components and parts that require high precision and surface smoothness, complexity in the precision set of lift cone through ball requires precise alignment of the legs of the lift relative to the generatrix of the cone, as the outer ring of the bearing must be in the plane passing through the axis of the conical surface. Otherwise, when the same length of legs with their free ends will be at different distances from this axis, which will lead to errors when using the lift for its intended purpose. Furthermore, the presence of axial conditions, moving cone, when exceeded, causes the compressive effort in the vertical leg of the lift, which lifts the entire lift. Great efforts in the side legs can lead to significant contact stresses and deformations of the spherical surfaces.

The design is known of the lift at its core involves the use of such heavy materials as steel. In addition, the design includes the power elements. All this leads to significant weight design.

Thus, the famous lift in its implementation does not allow to achieve the technical result consists in achieving the required accuracy while simplifying design and reducing weight.

Patent search to identify technical solutions that offer similar mechanical="ptx2">

The known magnetic holder, containing a hollow cylindrical body with a handle placed coaxially housing the rod with elektroobmotka, one end of which communicates with item [5].

Closest to the proposed mechanism of guidance used in the inventive device for controlling the alignment of parts is magnetic holder, containing a hollow cylindrical body with a handle placed coaxially housing the rod with elektroobmotka, one end interacting with the item. Furthermore, the magnetic holder is provided with a micrometer screw, the rod is placed with the possibility of reciprocating movement along its axis, the handle is provided coaxially with the pivot hole, in which is set the micrometer screw, which is connected with the other end of the rod [6].

The known device is used as mechanisms aiming for setup details in the technological hole and fixing them, as well as for installation and mounting details to surfaces.

A disadvantage of the known magnetic holders is to reduce the effort of attraction due to the lower efficiency of the magnetic circuit, since most cha is building parts for mating with a surface.

In addition, the prototype has limited capacity for precision parts are installed as standard micro-screw allows you to set the item with a precision of 0.01 mm, which does not allow to increase the accuracy of the known mechanism of guidance. The need for stationary power source in the prototype deprives known mechanisms of guidance such as autonomy.

Thus, the known devices do not allow to achieve the technical result consists in increasing the reliability of fastening items to operahouses with her surface, to increase the accuracy of the installation details, as well as in ensuring the autonomy of the device.

The invention of the Device for controlling the alignment of the parts" solves the problem of creating such a device, which in its implementation allows to achieve the technical result consists in increasing the accuracy and reliability of testing results by stabilizing the spatial position of the reference axis.

The essence of the invention lies in the fact that in the device for controlling the alignment of parts containing a laser emitter with a ring beam structure, control and working detectors and three lift with Tr is the radiation receiver, with a working receiver placed in the lift movably entered first, second and third mechanisms targeting, while the laser emitter and the reference receiver is placed in the proper centrocytes motionless, legs lift emitter enshrined in the monitored node through the appropriate mechanisms aiming with the possibility of lateral movement, and the legs of centrically working and reference receivers mounted stationary in the testing part and a controlled node, respectively. While the legs of centrically receivers fixed in the testing part and in a controlled node using a magnetic tack.

The technical result is achieved in the following way. The implementation of laser radiation with a ring beam structure provides conservation technical result achieved in the prototype is achievable measurement accuracy.

Because the legs of the lift laser emitter enshrined in the monitored node through mechanisms aiming with the possibility of horizontal movement allows rotation of the housing of the lift in two directions. However, due to the fact that h is change the position of the emitter in the lift. The result is the stability of the spatial position of the beam of the emitter relative to the center of lift during a change of the spatial position of the latter. This eliminates the possibility of introducing errors when installing the base axis due to the instability of the spatial position of the emitter relative to the center of lift, improves the accuracy of installation of the base axis, and hence the accuracy and reliability of testing results.

Fixed in the corresponding fixing the lift control light receiver, and a fixed anchoring the lift in a controlled node, ensure the stability of the established spatial position of the reference axis, which also increases the accuracy and reliability of testing results.

The consolidation of the working radiation receiver in the corresponding lift movably allows, without modifying the original installation of centrically emitter and the control of the receiver, i.e., without violating the conditions under which exhibited the base axis to measure misalignment. Moreover, the fulfillment of these conditions can be considered that the reference readings is Rel is here the initial conditions of installation of the base axis improves the accuracy of measurements and reliability of the control.

Thus, the proposed device for controlling alignment of the parts during its implementation allows to achieve the technical result consists in increasing the accuracy and reliability of the control.

The present invention "Lift" used in the present invention the Device for controlling the alignment of the parts" solve the problem of the creation of lift, which it allows to achieve the technical result consists in achieving the required accuracy while simplifying design and reducing weight.

The essence of the invention lies in the fact that in the lift, comprising a housing in which is coaxially of the cylinder, three legs, each of which contains a guide rigidly mounted in the housing in a corresponding radial hole, while the guides are positioned in a plane perpendicular to the axis of the cylinder, and the lower rail is vertical, and two side - angle 2 to 3oto the horizon, the cylinder is located in the housing in bearings, and the legs of the lift put on appropriate guides with the possibility of axial movement and connected with the cylinder through the flat is in via spherical bearings, installed radially on the same circumference of the cylinder section, a second end thrust rigidly connected with the corresponding leg of the lift, the second end thrust is made with possibility of transverse bending.

The technical result is achieved in the following way. Due to the fact that the legs of the lift put on the guides, each of which is rigidly fixed in a radial bore in the housing of the lift and is situated in a plane perpendicular to the axis of the cylinder, located in the housing coaxially with the feet of lift are always in the plane perpendicular to the axis of the cylinder. Install cylinder bearings provides the possibility of its rotation around its axis. The possibility of axial movement of the legs relative to the guides, as well as their connection to the cylinder by means of flat rods, for which the body is made corresponding holes, provides simultaneous displacement of the three legs of serostatus at offset one of them. In this case, since the connecting points of the rods to the cylinder are located radially on the same circumference, the ends of the legs of the lift as they move along the guides are always at the same distance from the axis C is and the lift, that ensures accuracy. Mount flat rods to the cylinder by means of a spherical bearing eliminates radial movement of the legs of the lift relative to the guides, which also increases the accuracy of the lift. The second end of the flat rod with possibility of transverse bending provides the possibility of longitudinal displacement of the legs of the lift relative to its center.

The absence in the design of the lift force elements allows you to perform all parts of the lift of light alloy and thereby significantly reduce the weight of the product.

Thus, the proposed lift, used in the present invention the Device for controlling the alignment of the parts", it allows to achieve the technical result consists in achieving the required accuracy while simplifying design and reducing weight.

The invention Mechanism targeting", as used in the inventive device for controlling the alignment of parts, solves the problem of creating a mechanism for the guidance that it allows to achieve the technical result consists in increasing the reliability to the plants is in the guidance mechanism comprising a hollow body, the anchor of a ferromagnetic material, accommodated in the housing coaxially with the possibility of axial movement and interaction of the working end with the item, handle rough laying interacting with located in the housing by a screw, which communicates at one end with an anchor and is located coaxially with him, interacting with the anchor end of the screw is made thread with a pitch that is less than the thread pitch arm rough laying and anchor made blind threaded groove, and entered grip and accurate aiming, rigidly attached to the other end of the screw, when this handle rough laying placed on the housing for rotation around its axis, and the second end of the anchor, are accommodated in the housing, spring-loaded, in addition, the housing from the second end of the armature is rigidly connected to the stop is made of a ferromagnetic material, in the upper part of which is made a hole for the anchor and has entered the limiter its radial movement, and in the lower part of the emphasis placed the magnet in such a way that one of its cavity coincides with the plane of the clamp stops.

The technical result is achieved due to the fact that the magnetic field of the magnet mechanisms is increases the force of gravity, consequently, improves the reliability of the fastening parts. This is achieved by the fact that in the mechanism of induction used the magnet, which is placed at the bottom of the fence, made of a ferromagnetic material, so that one of its poles in the same plane as the clip stops. The latter provides the density of the clamp a stop to the surface of the site. Due to the fact that the body of the guidance mechanism is rigidly connected to the stop, in the upper part of which is made a hole for the anchor, made of a ferromagnetic material, the working end which has the ability to interact with the item, when connecting the anchor with the detail of the magnetic lines of force are opposite poles of a magnet are closed through the item and the node in which this detail set, pressing firmly against the workpiece by the magnetic field toward the anchor and host. Due to the fact that the second end of the anchor located in the housing, spring-loaded, and in the upper part of the emphasis made limiter radial movement of the armature, the mechanism is practically eliminated the backlash and excluded the movement of the armature in the radial direction, which ensures the stability of the position of the installed components, and therefore, improves the accuracy of the guidance mechanism. Because the anchor rasmusseninvestor with the same screw, having two threads of different pitch, and handle rough laying placed on the body of the mechanism with the possibility of rotation around its axis, and the grip and accurate aiming placed at the free end of the screw, when the rotation handle rough laying the anchor is moved in the axial direction by a distance corresponding to the thread pitch arm rough laying, and when the rotation arm and accurate aiming on the difference of the steps in the thread handle rough laying and thread, made by interacting with the anchor end of the screw. Thus, selecting the difference of threads, you can get pointing accuracy, exceeding the pointing accuracy obtained using a standard micrometer screw, which also increases the accuracy of the proposed mechanism guidance.

No need for the power supply provides the autonomy of the proposed mechanism guidance.

Thus, the proposed mechanism of guidance used in the present invention the Device for controlling the alignment of the parts", it allows to achieve the technical result consists in increasing the reliability of the fastening parts, improving accuracy and ensuring the independence of the mechanism of guidance.

Device for controlling alignment of the parts contains three lift 1, 2, 3, the laser emitter 4 and the ring beam structure, the control receiver 5 radiation and worker radiation receiver 6. The first 1 and second 2 centrically placed in corresponding control bores 7 and 8 of the controlled node, and the third lift 3 is placed in the bore 9 of the controlled components. In centrocytes 1, 2, 3 respectively placed laser emitter 4, the control receiver 5 receiver 6 radiation. The laser emitter 4 and the control receiver 5 is placed to centrocytes 1 and 2 still, as a working receiver 6 is placed in zeroscale 3 movably, for example, through the mechanism of the two-dimensional movement. The mechanism of two-dimensional movement can be performed as described in the ed. mon. USSR N 913034, CL G 01 B 5/24, 15.03.82. In addition, the device contains three mechanisms 10 guidance and magnetic pot holders 11. The legs 12 of the lift 1 is fixed in the control bore 7 through IU magnitnykh tack 11 still. Magnetic pot holders 11 are magnets in the shape of letters, the Vertical part of the pot 11 is fixed to the end of the bore, and the end of the horizontal shelves interacts with the leg 12 of the lift.

The lift 1 (2, 3) contains three legs 12, a housing 13, in which in the respective radial holes rigidly fixed guides 14 of the legs 12. In the housing 13 is placed coaxially in the bearings 15 of the cylinder 16. The guides 14 are located in a plane perpendicular to the axis of the cylinder 16, and the lower rail 14 is vertical, and two side - angle to the horizon 2 to 3o. Legs 12 mounted on rails 14 with the possibility of axial movement and connected to the cylinder 16 by means of a flat rod 17, which in the case 13 is made corresponding holes. Thrust 17 one end of which is attached to the cylinder 16 through the spherical bearing 18 mounted by means of screws 19 radially on the same circumference of the cylinder section 16. The second ends of the rods 17 are rigidly connected to the corresponding leg 12 of the lift 1 (2, 3) and is made with possibility of transverse bending. For convenience, the ends of the legs of the lift, fancy lugs 20. In the example of executing Nakonechny 10 guidance contains a hollow body 21, the anchor 22 is made of ferromagnetic material, accommodated in the housing coaxially with the possibility of axial movement and interaction of the working end part (the tip 20 of the leg 12); the handle 23 rough laying interacting with located in the housing by a screw 24, which communicates at one end with an anchor 22 and is located coaxially with him; thread 25 for accurate aiming, which is made by interacting with the anchor 22 the end of the screw 24, the other end of which is rigidly fixed to the handle 26 and accurate aiming. Thread pitch arm 23 more thread 25. The anchor 22 is made blind threaded groove. Arm 23 rough laying placed on the housing 21 for rotation about its axis, and the second end of the anchor 22, accommodated in the housing 21, is spring-loaded. In addition, the housing 21 from the second end of the anchor 22 is rigidly connected to the stop 27, made of a ferromagnetic material, in the upper part of which is made a hole for the anchor 22 and a limiter 28 its radial movement. In the lower part of the stop 27 posted by magnet 29 so that one of its poles in the same plane as the clamp 30 stops. The magnet 29 is placed in the gasket 31 of non-magnetic material.

The device operates as follows.

To conduct measurements for alignment control parts lift 3 working radiation receiver 6 is installed in the bore 9 of the controlled components. The lift 3 still fixed in the bore magnetic tack 11. For a work receiver 6 set the matte screen. Changing the spatial position of the working receiver 6 in lift 3, for example, by the mechanism of two-dimensional movement, to achieve the appearance of a matte screen, clear image of concentric circles formed by the annular structure of the beam of the laser emitter. The reference deflection of the laser beam produced on the scale of fur

The mechanism 10 of the guidance device control alignment of the parts is as follows. Plane down the stop 27 which is placed in the magnet 29, attach mechanism pointing to the end of the bore 7. Then set in the bore 7 of the lift 1 with the laser emitter 4 so that the base legs 12 of the lift 1 was located in the bore symmetrically, and the axis of the anchor 22 mechanisms 10 is perpendicular to the axes of legs 12. In this condition the leg mechanisms are attracted to the anchors 22 and the bore 7 with a force of up to 2 kg, which ensures reliable fixing of the radiator in the bore. Pointing the beam at the reference receiver 5 is carried out by moving the anchors 22 mechanisms 10 guidance handles rough 23 26 and accurate focusing. In the event of axial movement of the anchor 22, the ends of legs 12 of the lift 1 slide on the surface of the bore 7, remaining attached to the anchors 22, because the force of friction between the ends of legs 12 on the surface of the bore 7 is not more than 0.2 gravity of the legs 12 to the anchors 22, since the coefficient of friction of steel on steel is 0.15 to 0.2. Thus by turning the handle 23 rough laying the anchor 22 is moved in the axial direction by a distance corresponding to the thread pitch arm 23 grobbee difference steps carving arm 23 rough laying and thread 25, made to interact with the anchor 22 the end of the screw 24. The lift 1 changes the spatial position of the body 13.

Sources of information taken into account in the examination:

1. Karasev Century. And., Manas D. C. Installation of steam turbines using optical instruments. -M.: Energy, 1976, S. 15, Fig. 2, S. 95, Fig. 27.

2. USSR author's certificate N 1439400, CL G 01 B 21/00, 1988 prototype.

3. USSR author's certificate N 578555, CL G 01 B 5/25, 1977.

4. Karasev Century. And., Manas D. C. Installation of steam turbines using optical instruments. -M.: Energy, 1976, S. 54 - 61 prototype.

5. USSR author's certificate N 252949, class B 25 B 11/02, 1969.

6. USSR author's certificate N 956266, class B 25 B 11/02, 1982.

1. Device for controlling alignment of parts containing a laser emitter with a ring beam structure, control and working detectors and three lift with three legs each, which are placed, respectively, a laser emitter, a control receiver radiation and worker radiation receiver, and a work light receiver placed in the lift is movable, characterized in that the device is introduced first, second and third mechanisms guidance, laskoski of lift emitter enshrined in the monitored node through the appropriate mechanisms aiming with the possibility of lateral movement, and legs centrically working and reference detectors mounted stationary in the testing part and in a controlled node, respectively.

2. The device under item 1, characterized in that the legs of centrically working and reference detectors enshrined, respectively, in the testing part and the monitored node using a magnetic tack.

3. The lift, comprising a housing in which is coaxially of the cylinder, three legs, each of which contains a guide rigidly mounted in the housing in a corresponding radial hole, while the guides are positioned in a plane perpendicular to the axis of the cylinder, and the lower rail is vertical, and two side - angle 2 to 3oto the horizon, characterized in that the cylinder is located in the housing in bearings, and the legs of the lift put on appropriate guides with the possibility of axial movement and connected with the cylinder by means of flat rods, for which the body is made corresponding holes and which one end is attached to the cylinder by means of spherical bearings mounted radially on the same circumference of secenes thrust made with the possibility of transverse bending.

4. The guidance mechanism comprising a hollow body, the anchor of a ferromagnetic material, accommodated in the housing coaxially with the possibility of axial movement and interaction of the working end with the item, handle rough laying interacting with located in the housing by a screw, which communicates at one end with an anchor and is located coaxially with him, wherein the communicating with the second end of the anchor end of the screw is made thread with a pitch that is less than the thread pitch arm rough laying and anchor made blind threaded groove, and entered grip and accurate aiming, rigidly attached to the other end of the screw, when this handle rough laying placed on the housing for rotation around its axis, and the second end of the anchor, are accommodated in the housing, spring-loaded, in addition, the housing from the second end of the armature is rigidly connected to the stop is made of a ferromagnetic material, in the upper part of which is made a hole for the anchor and has entered the limiter its radial movement, and in the lower part of the emphasis placed the magnet in such a way that one of its poles in the same plane as the clip stops.

 

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