Device for milling of two separately located surfaces
(57) Abstract:The invention relates to the field of machine tools, spindle nozzles milling machines. The device includes a housing made of composite plate and a cover mounted on the plate can be rotated around its axis, tool spindles, the nodes of which are mentioned on the cover, and the drive unit tool spindles with a leading gear wheel. To improve the accuracy of the depth of the surface details of the device has adjusting screws mounted on the plate and in contact with the cover. A leading gear wheel of the drive unit rotating tool spindles can be positioned in the housing cover. 1 C.p. f-crystals, 2 Il. The invention relates to the field of machine tools and can be used when designing the spindle nozzles milling machines.A device for milling of two separately located surfaces (see kN. Shatin B. N., Shatin Y. C. Spindle snap: a Handbook, M. , engineering, 1981 - 439 S., Fig. 23, S. 360), comprising a housing, a tool spindle and a drive unit rotating tool spindles.Main Nezlobin different diameters of cutters, used for surface treatment, caused by the inevitable errors of their manufacturing and regrinding.The closest solution to the technical nature of the claimed device is a device for milling of two separately located surfaces (see and. C. N 848184, MKI B 23 C 7/00), comprising a housing made of composite plate and a cover mounted on the plate can be rotated around its axis, tool spindles, the nodes of which are mentioned on the cover, and the drive unit tool spindles with the leading toothed wheel.The disadvantage is the inability to control the configuration of the blades, which results in the formulation of one of the cutters replace both, and it is not always economical.An object of the invention is to improve the accuracy of the depth of the surface details.This task is achieved by a method of milling two separately spaced surfaces involves the placement and fastening of the blades on the tool spindle device, setting them on the amount of processing and the simultaneous milling of the two surfaces, the amount of processing configure each cutter depending on ARPUs, tool spindles and the drive unit rotating tool spindles - the body is made of a composite comprising a plate and a cover mounted on the plate can be rotated around its axis and in contact with the adjusting screws mounted on the plate, this tool spindles are located on the housing cover. In addition, the drive sprocket of the drive unit of rotation of the tool spindles is located in the housing cover.In Fig. 1 shows a device for milling of two separately located surfaces is the main view, Fig. 2 is a top view in Fig. 1.Device for milling of two separately located surfaces is detachable from the housing 1 containing the plate 2 with the sleeve 3, which is located in its Central hole, and the cover 4, the hollow axle 5 which is located in the sleeve 3 of the plate 2. Cover 4 by means of an adjusting screw 6, is placed on the plate 1 can be rotated around its axis 5, and then rigidly, by means of screws 7, to connect to the plate 2. In the holes of the cover 4 are spindle 8 nodes with tool - milling cutter 9. The inside of the cover 4 is node 10 of the rotational drive tool spindles 11, containing a leading subch the forest. There are other details, made according to the General rules of constructing devices for milling two separately located surfaces.The method of milling two separately spaced surfaces and a device for its implementation works as follows.Tool spindles 11, install the cutter 9, and fix them with screws 17 and adjust the size of the processing. Why, by means of screws 7, choose to unpin it the cover from the plate 2, rotate it by means of the adjusting screws 6 around its axis 5 and adjust the cutter 9 to the specified size using the dipstick and two clamping devices (not shown conventionally) and vertical movement of the machine table. Then fix the cover 4 by screws 7. Then include the rotation of the spindle 18 of the machine (conventionally not shown), through which the lead 13, the drive sprocket 12, the intermediate 15 and the spindle 16 of the wheel transmits the rotation of the cutters 9. After that, turn the working feed of the milling machine table and simultaneously milling the two separately spaced surfaces of the part 19.The proposed method of milling two separately spaced surfaces of the part and device for its implementation, the quality of processing, that will reduce the cost of the product as a whole. The effect achieved by the individual settings of each instrument in the shaping surfaces of the parts. 1. Device for milling of two separately located surfaces, comprising a housing made of composite plate and a cover mounted on the plate can be rotated around its axis, tool spindles, the nodes of which are mentioned on the cover, and the drive unit tool spindles with a leading gear wheel, characterized in that it is provided with adjusting screws mounted on the plate and in contact with cover.2. The device under item 1, characterized in that the drive sprocket of the drive unit of rotation of the tool spindles is mentioned in the cover.
FIELD: mechanical engineering.
SUBSTANCE: invention relates to machining of cellular fillers on five-coordinate numerically-controlled machine tools. Method comes to setting plane of rotation cutting tool at angle to surface to be machined. To improve accuracy owing to corresponding space orientation of cutting tool in process of machining of machining, alignment of axis of cutting tool with plane determined by straight line connecting point of touch with following support point and vector of normal to machined surface are provided by additionally turning axis of cutting tool around vector of its linear displacement. Disk cutter can be used as cutting tool.
EFFECT: improved accuracy of machining.
2 cl, 3 dwg
FIELD: metal cutting processes and equipment, milling by means of end milling cutter blades of one-piece impellers of gas turbine engines in number program control machine tools.
SUBSTANCE: method comprises steps of rough working for cutting inter-blade grooves of the same width in radial direction and finishing for milling blade along height. Both types of working are performed at one mounting operation. In order to improve accuracy, working is performed along lines and depth of each line is set more than thickness of deformed layer of blank after previous working. For each line deformation value of worked surface of impeller is set more than deformation value of worked surface after working i-line.
EFFECT: enhanced accuracy of working.
4 cl, 5 dwg
FIELD: engineering tools, particularly to repair axle openings of side freight car truck frame inside wagon depot.
SUBSTANCE: milling machine comprises bed with horizontal guiding means, frame fixedly secured to the bed, slider with spindle head, spindle with mill vertically inserted in the head, mill drive and positioning device having pressing means mounted on frame and adapted for article to be processed fixation. Spindle head is additionally provided with two parallel horizontal spindles having drive. Each horizontal spindle has mills, wherein one mill is arranged from each opposite slider side.
EFFECT: increased productivity.
4 cl, 5 dwg
FIELD: machine tool manufacture, working elongated or short parts.
SUBSTANCE: machine tool includes housing for mounting worked part and milling module with milling cutter. Milling module is arranged in rest that may move long and across worked part. In order to enhance accuracy of working due to lowered influence of cutting efforts upon worked part absorption of temperature stresses occurred in system and provision of high parameters of micro-irregularities, roller stops are mounted in housing for mounting working envelope made of elastic material with worked part molded into it. At both sides of milling cutter in milling module height-regulated supporting skies are arranged; said skies engage with elastic supporting sites of working envelope of part. Milling module is mounted in one end of tie rod rocking in articulation joint of rest. Counter-weight is arranged on other end of tie rod and it is spaced by adjustable distance from said articulation joint.
EFFECT: enhanced accuracy of milling part.
FIELD: nuclear power engineering, dismounting radioactive equipment of nuclear power plants.
SUBSTANCE: method comprises steps of using standard metal cutting tools. In order to enhance safety, there are used: rotary dismounted basic lid of biological protection with slits for moving ropes, suspended unit-modules and cargo-lifting machines with flexible cargo-carrying member in the form of rope to which changeable module-units are joined for cutting body of radioactive equipment by fragments. Module-units are based on inner surface and on edges of said radioactive equipment and they include cutting units with disc milling cutters; feeding units for linear motion of cutting units in guides and assemblies for mounting module-units.
EFFECT: enhanced efficiency and safety of method.
FIELD: metal machining.
SUBSTANCE: method comprises setting the device for securing the blade in the machine-tool, securing the blade to the device, measuring deviation of its actual position from the position of the reference blade, and orienting the device together with the blade until the axis of the blade and axis of the machine-tool is aligned. The device has lid and plungers. The lid is mounted inside the housing and closed with respect to it. The lid receives plungers and clamping members that are unmovable. The plungers pass through the housing, are spring-loaded with respect to it, and can axially move.
EFFECT: enhanced precision of machining and simplified structure.
2 cl, 3 dwg
FIELD: working parts by cutting, namely processes and equipment for making aircraft engines.
SUBSTANCE: in order to enlarge manufacturing possibilities and to improve efficiency, cutting of back, trough and bottom of inter-blade duct is realized simultaneously for one technological procedure by means of one annular cutting tool and blade edges are further worked before finishing them. Rotation axes of tool and mono-impeller are arranged in such a way that they cross by predetermined angle depending upon curvature of worked surfaces while providing rectilinear motion of cutting tool along three axes of three-dimensional coordinate system and rotation of cutting tool around said three axes. Tool includes cutting end members arranged along annular perimeter of body. Tool is in the form of T-shaped cutting members arranged uniformly along perimeter of annular body with width equal to that of inter-blade duct in root cross section. T-shaped cutting members have end, outer and inner lateral cutting edges. Diameter of circle described around outer lateral cutting edges of tool is equal to that of circle inscribed to trough profile of mean cross section of blade by three points. Non-equal legs of outer and inner lateral cutting edges of trough profile correspond to twisting value of blades along height and spacing from rotation axis of cutting tool till projections of nearest points of inlet and outlet edges of boundary cross section of inter-blade duct on rotation plane of tool. Length of T-shaped cutting member is determined by value exceeding depth of inter-blade duct.
EFFECT: enlarged manufacturing possibilities, improved efficiency.
2 cl, 6 dwg
FIELD: machine engineering, working profiles of rolling surfaces of wheel pair of railway road transport vehicles.
SUBSTANCE: method comprises steps of imparting rotation and feed motion along worked surface to blank and to milling cutter in body of which cutters having round cutting tips of hard alloy are mounted. In order to enhance efficiency and quality of working milling cutter is provided with damping member in the form of washer like corrugated spring. Body of milling cutter has trapezoidal radial grooves enlarged to axis of milling cutter and designed for placing said cutters with cutting tips of hard alloy engaged with damping member. Surfaces of radial grooves are faced with bronze porous self-lubricating plates. All said plates except one lateral plate are plane-parallel and they are fixed to body. Said lateral plate is in the form of wedge and it is designed for adjusting gap between it and cutter with use of screw. Cutters in the form of trapezium reciprocal to radial groove of milling cutter body are mounted in said grooves by sliding fit and they are hold in grooves by means of first lid at one end and by means of damping member and second lid at other end. Lids are secured to body by means of screws designed for adjusting elasticity of damping member.
EFFECT: enhanced operational reliability, increased vibration resistance of milling cutter.
2 cl, 7 dwg
FIELD: metal working, in particular, working of rolling surface profile of wheel pairs for railway transport.
SUBSTANCE: method involves transmitting rotational motion and feeding motion to profile cutter mounted on holder and to blank; using cutter located on mandrel for rotation in slider bearings formed as bushings and in thrust roller bearings. One end of cutter is made corrugated for joining to mated corrugated end of coupling mounted on mandrel in slots for axial displacement and biased by nut to cutter with the help of damping member formed as disk spring. Other end of cutter is biased with the help of nut through one of thrust roller bearings. Before machining, resiliency of damping member may be regulated for increasing resistance to vibration, providing continuous-intermittent bringing into contact and separation of cutter teeth from contact with surface under machining process, said surface having thermomechanical and other defects.
EFFECT: increased durability, enhanced reliability in operation and increased efficiency.
3 cl, 7 dwg
FIELD: working materials by cutting, cutting tools.
SUBSTANCE: head includes two cutter heads kinematically connected one with other and having at least two similar cutters. One cutter head is adjusted for preliminary rough working and other cutter head is adjusted for finish working at axial feed. Cutter heads are arranged one opposite to other by inclination angle (determined according to given formula) relative to plane normal to blank axis and passing through center of worked spherical surface. Paths of rotation of head cutter apexes have common point arranged in lengthwise axis of blank. Heads may be rotated from one drive unit at the same revolution number for timing motion of cutters due to successive alternative passing of said common point by cutters of rough and finish heads.
EFFECT: enhanced efficiency of turning high quality and high accuracy spherical surfaces.