CN112847042A - Machine tool for repairing die - Google Patents

Machine tool for repairing die Download PDF

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Publication number
CN112847042A
CN112847042A CN202110004826.5A CN202110004826A CN112847042A CN 112847042 A CN112847042 A CN 112847042A CN 202110004826 A CN202110004826 A CN 202110004826A CN 112847042 A CN112847042 A CN 112847042A
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China
Prior art keywords
gear
sleeve
rotating
spline
screw
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CN202110004826.5A
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Chinese (zh)
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不公告发明人
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/20—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/02—Frames; Beds; Carriages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The invention discloses a machine tool for repairing a mould, which comprises a positioning frame mechanism and a trimming head mechanism, wherein the positioning frame mechanism has six spatial degrees of freedom, each movable joint is provided with a graduated scale, the trimming head mechanism can carry out accurate spatial positioning, the trimming head mechanism is tightly installed at the tail end of the positioning frame mechanism and is used for repairing the surface of the mould, the trimming head mechanism has a fast-slow gear function, a fast gear is adopted during idle stroke, the moving time of a polishing head is shortened, a slow gear is adopted during trimming the surface of the mould, the processing quality of the surface of the mould is improved, the fast-slow gear switching is realized by changing the position of a deflector rod, a transmission structure is a planetary gear train during slow gear, a transmission structure is a fixed-shaft gear train during fast gear, a worm and gear transmission structure is adopted inside the trimming head mechanism, the transmission is stable, the self-locking function is also realized, and the reaction force of the surface of the mould to the polishing head can not react on a hand wheel, therefore, the surface of the die can be smoothly trimmed by rotating the hand wheel.

Description

Machine tool for repairing die
Technical Field
The invention relates to the field of machining, in particular to a machine tool for repairing a die.
Background
Molds play an extremely important role in modern industry, and the quality of a mold directly determines the quality of a product. The mold industry in China is rapidly developed in recent years and ascends three mold production countries in the world, but the mold industry in China has a larger difference compared with the production level of foreign advanced molds, and the difference is mainly expressed in the aspects of long manufacturing period, low manufacturing precision, short service life of the molds and the like, wherein the problem of short service life of the molds is particularly prominent, and the resource waste and the production cost are directly increased, so that the failed molds are repaired and reused, the service time of the molds is prolonged, unnecessary loss in production is recovered, the development of industry and national economy is greatly promoted, and the mold industry has remarkable economic benefit and social significance.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a machine tool for repairing a mold, which is novel in structure and convenient to use.
The technical scheme adopted by the invention is as follows: the utility model provides a lathe for repairing mould, includes locating rack mechanism and repaiies first mechanism, its characterized in that: the positioning frame mechanism has six spatial degrees of freedom, each movable joint is provided with a graduated scale, and the trimming head mechanism has two feeding gears and is fixedly arranged at the tail end of the positioning frame mechanism for repairing the surface of the die.
Preferably, the positioning frame mechanism comprises a base, a positioning sleeve, a sliding sleeve, an upright post, a second screw, a thimble sleeve, a fourth screw, a cross arm, a third screw, a first screw, a sixth screw, a swinging frame, a swinging rod, a fifth screw, a nut and a swinging head, wherein the base is fixedly arranged on the ground, the upright post is fixedly connected with the base, the sliding sleeve can move and rotate on the upright post through the pointer sleeve and is locked by the third screw, the positioning sleeve and the first screw are convenient for realizing the height positioning of the sliding sleeve, the cross arm and the sliding sleeve form a rotating pair and are locked by the second screw, the transverse swinging rod can form a rotating pair with the cross arm and is locked by the fourth screw, the swinging frame and the swinging rod form a rotating pair and is locked by the fifth screw, and the swinging head and the swinging frame form a rotating pair and is locked by the sixth screw.
Preferably, the trimming head mechanism comprises a shell, a worm, a fourth bevel gear, a worm gear, a threaded shaft, a moving shaft, a motor, a clamping piece, a polishing head, a third bevel gear, a sixth gear, a second gear set, a first gear set, a planet carrier, a shifting rod, a spline housing, a first gear, a second bevel gear, a first bevel gear, a top ball and a hand wheel, wherein the shell is a support main body, the motor drives the polishing head to rotate through the clamping piece, and the feeding and retreating of the polishing head can be realized by rotating the hand wheel, so that the surface of the mold is trimmed; when the slow gear is fed, the first gear is still, and the first gear set, the second gear set and the planet carrier form a planetary gear train with a larger transmission ratio; when the fast gear is fed, the first gear set and the second gear set form a whole and rotate at a constant speed with the planet carrier; the shifting lever realizes the switching between the fast gear and the slow gear by changing the position of the spline sleeve; during idle stroke, the high-speed feeding can be adopted to shorten the moving time of the polishing head, and the low-speed feeding can be adopted during the surface processing of the die to improve the processing quality of the surface of the die.
Preferably, the base is fixedly arranged on the ground through foundation bolts to provide stable support for the positioning frame mechanism, the lower end of the upright post is fixedly arranged on the upper side of the base through screws and enables the upright post to keep a vertical state, the front side surface of the upright post is provided with a first scale, the left side of the upright post is vertically provided with a guide groove, the finger needle sleeve is of an open cylindrical structure, the upper end of the finger needle sleeve is provided with a third pointer, the inner side of the finger needle sleeve is longitudinally provided with a guide strip, the finger needle sleeve and the upright post are coaxially arranged, the guide strip is arranged in the guide groove, so that the finger needle sleeve and the upright post form a moving pair, the upper end of the sliding sleeve is provided with a third scale, the left side of the sliding sleeve is provided with a fan-shaped structure, the fan-shaped structure is provided with a second scale and an arc-shaped hole, a longitudinally-shaped open round hole arranged on the right side of the sliding sleeve can be arranged on the outer side of, thereby realize the rotation locking and the high location of slip commentaries on classics cover, the position sleeve is opening ring shape structure, and the position sleeve can slide on the stand with stand coaxial arrangement, is equipped with the recess on the plane of position sleeve upper end, is convenient for read first scale, screws up first screw and can realize the fixed of position sleeve on the stand.
The auxiliary connecting part of the sliding sleeve is heavy and is not convenient for direct accurate height positioning, so when the height of the sliding sleeve needs to be adjusted, the first screw is firstly unscrewed, the positioning sleeve is moved to enable the upper end plane of the positioning sleeve to move to a target scale, the first screw is locked to enable the positioning sleeve to be fastened on the upright post, then the two third screws are unscrewed, the sliding sleeve is moved downwards to enable the lower end surface of the sliding sleeve to be tightly attached to the upper end plane of the positioning sleeve, and then the two third screws are locked, so that the accurate height adjustment of the sliding sleeve is completed.
Preferably, the left end of the cross arm is of an open structure and is provided with a second pointer, the right end of the cross arm is provided with a cross arm disc and a fourth pointer, the left side of the cross arm and the sliding sleeve form a rotating pair, a second screw can penetrate through an arc-shaped hole in the left side of the sliding sleeve to enable the left end of the cross arm to clamp a sector structure in the left side of the sliding sleeve, so that the rotation locking of the cross arm is realized, the rotating angle of the cross arm relative to the sliding sleeve can be indicated on a second scale by the second pointer, three arc-shaped holes are uniformly distributed in the circumferential direction on the cross arm disc, the upper end of the yaw rod is provided with an upper scale, the upper scale is provided with a fourth scale and three threaded holes uniformly distributed in the circumferential direction, the upper scale can form a rotating pair with the cross arm disc and can be locked by three fourth screws, the rotating angle of the yaw rod relative to the cross arm can be indicated on the fourth, the left side of the swing frame is provided with a swing frame disc and a fifth pointer, the upper side of the swing frame disc is provided with a sixth pointer, three arc-shaped holes are uniformly distributed on the swing frame disc in the circumferential direction, the swing frame disc and the lower dial form a revolute pair and can be locked by three fifth screws, the rotation angle of the swing frame relative to the transverse swing rod can be indicated on a fifth scale by the fifth pointer, the upper end of the swing head is of a semi-circular plate structure, the semi-circular plate structure is provided with sixth scales and the arc-shaped holes, the semi-circular plate structure and the right side of the swing frame form a revolute pair, the sixth screw penetrates through the arc-shaped hole on the semi-circular plate structure and forms a thread pair with the swing frame, the rotation of the swing head relative to the swing frame can be locked by screwing the sixth screw, the rotation angle of the swing head relative to the swing frame can be indicated on the sixth scales by the sixth pointer, the lower end of the swing head is provided with a thread pair, for locking the expansion device.
Preferably, the right end of the shell is provided with an internal spline, the upper side of the shell is provided with a square hole groove, two top balls are arranged on the side surface of the square hole groove and used for accurately positioning the gear shifting device, the left end of the shell is provided with a threaded hole, the threaded hole and the threaded rod form a threaded pair and form a double-nut anti-loosening structure through nut locking, so that the fastening connection of the trimming head mechanism and the tail end of the positioning frame mechanism is realized, a hand wheel is arranged on the upper side of the shell and forms a rotating pair, a first bevel gear is coaxially fastened and connected with the lower end of the hand wheel, a threaded shaft is arranged in the shell and forms a rotating pair with the shell through two bearings, the right end of the threaded shaft is provided with a threaded structure, a worm wheel is coaxially fastened and connected with the left end of the threaded shaft, a worm is horizontally arranged in the shell and forms a rotating pair, the worm is meshed with, the third bevel gear and the fourth bevel gear are meshed to form gear meshing transmission, a sixth gear and the left end of the third bevel gear are coaxially and tightly connected, the polishing head is tightly connected with a motor output shaft through a clamping piece, a motor is fixedly installed at the right end of a moving shaft, an external spline arranged at the left end of the moving shaft is matched and installed with an internal spline at the right end of a shell, so that the moving shaft and the shell form a moving pair, a threaded hole arranged inside the moving shaft is matched and installed with a threaded structure at the right end of the threaded shaft to form a threaded transmission structure, and the threaded shaft can drive the moving shaft to move after rotating, so that feeding and retreating actions of the polishing head are realized.
Preferably, a supporting plate is arranged in the shell, a round hole is formed in the upper end of the supporting plate, a fixed spline is arranged on the left side of the round hole, the first gear is arranged in the round hole in the upper end of the supporting plate and forms a rotating pair, the number of teeth of the first gear is z131, its left end is equipped with driven spline, and the planet carrier left side is equipped with the center pin, and center pin coaxial arrangement is inside first gear to constitute the revolute pair through two bearings and first gear, second bevel gear and the coaxial fastening connection of center pin left end, second bevel gear and first bevel gear constitute gear engagement transmission, are close to the center pin left end position and are equipped with the rotation spline, rotation spline and center pin fastening connection, the spline housingThe inner part is provided with an internal spline, the annular groove arranged outside is arranged in a circular hole at the lower end of the driving lever and forms a revolute pair with the driving lever, the internal spline is arranged in a matched manner with the driven spline to enable the spline sleeve and the first gear to form a revolute pair, the upper end of the driving lever extends out of the upper side of the shell through a square hole groove, and the upper side of the driving lever is provided with a positioning hole.
Preferably, three round holes are uniformly distributed in the circumferential direction of the right side of the planet carrier, a first gear set is rotatably mounted in each round hole, a second gear is arranged at the left end of each first gear set, and the number of teeth z of each second gear is230, a third gear is arranged at the right end of the first gear set, and the tooth number z of the third gear is329, three second gears are meshed with the first gear to form gear meshing transmission, the second gear set is arranged in the shell to form a rotating pair, the left end of the second gear set is provided with a fourth gear, and the tooth number z of the fourth gear is430, three third gears all constitute the gear engagement transmission with the fourth gear meshing, and the second gear train right-hand member is equipped with the fifth gear, and the fifth gear constitutes the gear engagement transmission with the sixth gear meshing.
The motor can drive the polishing head to rotate, so that the surface of the die can be trimmed.
The chucking piece can be with polishing head and motor output shaft fastening connection, can take off the polishing head and change other kinds of polishing head according to mould material and surface characteristic after unscrewing the chucking piece.
When the surface of the die is repaired, firstly, the height of a sliding sleeve in a positioning frame mechanism and the rotation amount of each joint need to be adjusted, so that a polishing head is aligned to the position of the surface of the die to be corrected, and then a hand wheel is rotated to feed the polishing head forward, so that the repair of the surface of the die is gradually completed.
When the slow gear is fed: the shifting lever is shifted rightwards, the top ball on the right side is clamped into the positioning hole, the shifting lever drives the spline housing to move rightwards, the right end of the internal spline is matched with the fixed spline, the left end of the internal spline is separated from the rotating spline, so that the first gear keeps static, at the moment, the first gear, the planet carrier, the three first gear sets and the second gear set form a planetary gear train, and the transmission ratio i between the planet carrier and the second gear set isH4Comprises the following steps:
Figure BDA0002882781520000031
Figure BDA0002882781520000032
the hand wheel is rotated clockwise, the first bevel gear drives the planet carrier to rotate clockwise through the gear meshing relationship with the second bevel gear, the planet carrier enables the three first gear sets to revolve around while rotating, so that the second gear set rotates clockwise, the second gear set drives the sixth gear and the third bevel gear to rotate anticlockwise, the third bevel gear drives the fourth bevel gear and the worm to rotate clockwise, the worm drives the worm gear and the threaded shaft to rotate clockwise, so that the moving shaft moves rightwards, and the slow-gear feeding of the polishing head is realized; the backward movement of the polishing head can be realized by rotating the hand wheel anticlockwise.
When the fast gear is fed: the driving lever is shifted leftwards, the ejector ball on the left side is clamped into the positioning hole, the driving lever drives the spline sleeve to move leftwards, the left end of the internal spline is matched with the rotating spline, the right end of the internal spline is separated from the fixed spline, and therefore the first gear and the planet carrier are enabled to rotate at the same speed, at the moment, the first gear, the planet carrier, the three first gear set and the second gear set form a whole, relative rotation does not exist between the first gear and the planet carrier, the transmission ratio between the planet carrier and the second gear set can be regarded as 1, namely iH4＝1。
The hand wheel is rotated clockwise, the first bevel gear drives the planet carrier to rotate clockwise through the gear meshing relationship with the second bevel gear, the planet carrier drives the second gear set to rotate at a constant speed through three first gear sets, the second gear set drives the sixth gear and the third bevel gear to rotate anticlockwise, the third bevel gear drives the fourth bevel gear and the worm to rotate clockwise, and the worm drives the worm gear and the threaded shaft to rotate clockwise, so that the moving shaft moves rightwards, and the fast-gear feeding of the polishing head is realized; the backward movement of the polishing head can be realized by rotating the hand wheel anticlockwise.
The invention has the beneficial effects that:
firstly, the positioning frame mechanism has six spatial degrees of freedom and great flexibility, and the trimming head mechanism can trim the surface of any position and any angle on the die;
each movable joint of the positioning frame mechanism is provided with scale display, so that the head trimming mechanism can be accurately positioned in space;
each movable joint of the positioning frame mechanism is convenient to adjust, and electrified equipment is not adopted, so that the positioning frame mechanism is reliable in connection and positioning, low in failure rate, effective in reducing the manufacturing cost and beneficial to large-scale popularization and application;
the trimming head mechanism has a fast-slow gear function, a fast gear is adopted during idle stroke, the moving time of a polishing head can be shortened, and a slow gear is adopted during trimming of the surface of the die, so that the processing quality of the surface of the die can be improved;
the fast and slow gear switching of the trimming head mechanism is realized by changing the position of a deflector rod so as to change a transmission structure, when the head is in a slow gear, the transmission structure is a planetary gear train, when the head is in a fast gear, the transmission structure is an integral fixed-axis gear train, and the fast and slow gear is novel in structure, fast in switching and convenient to use;
sixthly, the trimming head mechanism is internally provided with a transmission structure of a worm gear and a worm, so that the transmission is stable, the self-locking function is realized, the reaction force of the surface of the die to the polishing head cannot react on the hand wheel through the transmission mechanism, and the surface of the die can be trimmed and processed stably by rotating the hand wheel.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 is a schematic overall structure diagram of the positioning frame mechanism.
Fig. 4 is an exploded view of the positioner mechanism.
Fig. 5 is a partial schematic view of the carriage mechanism.
Fig. 6 is a partial schematic view of the carriage mechanism.
Fig. 7 is a schematic view of the overall structure of the dressing head mechanism.
Fig. 8 is a schematic longitudinal sectional view of the trimming head mechanism in a slow-shift state.
Fig. 9 is a schematic longitudinal sectional view of the trimming head mechanism in the fast-shift state.
Fig. 10 is a schematic diagram of a transverse cross-sectional structure of the trimming head mechanism.
Fig. 11 is a schematic diagram of a transverse cross-sectional structure of the trimming head mechanism.
Fig. 12 is a schematic partial sectional view of the trimming head mechanism.
Fig. 13 is an exploded view of the dressing head mechanism.
Fig. 14 is a schematic structural view of the housing.
Fig. 15 is a schematic structural view of the carrier.
Fig. 16 is a schematic structural view of the shift lever.
Reference numerals: 1 positioning frame mechanism, 101 base, 102 positioning sleeve, 103 sliding sleeve, 103.1 second scale, 103.2 third scale, 104 upright post, 104.1 first scale, 104.2 guide groove, 105 second screw, 106 needle sleeve, 106.1 third pointer, 107 fourth screw, 108 cross arm, 108.1 cross arm disc, 108.2 fourth pointer, 108.3 second pointer, 109 third screw, 110 first screw, 111 sixth screw, 112 swinging frame, 112.1 sixth pointer, 112.2 swinging frame disc, 112.3 fifth pointer, 113 swinging rod, 113.1 upper scale, 113.2 lower scale, 114 fifth screw, 115 nut, 116 swinging head, 116.1 sixth scale, 116.2 threaded rod;
2 finishing head mechanism, 201 housing, 201.1 internal spline, 201.2 square hole groove, 201.3 threaded hole, 201.4 support plate, 201.5 fixed spline, 202 worm, 203 fourth bevel gear, 204 worm gear, 205 threaded shaft, 206 moving shaft, 207 motor, 207.1 clamping piece, 207.2 grinding head, 208 third bevel gear, 209 sixth gear, 210 second gear set, 210.1 fourth gear, 210.2 fifth gear, 211 first gear set, 211.1 second gear, 211.2 third gear, 212 planet carrier, 212.1 central shaft, 212.2 rotating spline, 213 driving lever, 213.1 positioning hole, 214 spline housing, 214.1 internal spline, 215 first gear, 215.1 driven spline, 216 gear, 217 first hand wheel bevel gear, 218 top ball, 219.
Detailed Description
The present invention will be further described with reference to specific examples, which are illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1 and 2, a machine tool for repairing a mold includes a positioning frame mechanism 1 and a trimming head mechanism 2, and is characterized in that: the locating rack mechanism 1 has six spatial degrees of freedom, each movable joint is provided with a graduated scale, and the trimming head mechanism 2 has two feeding gears and is fixedly arranged at the tail end of the locating rack mechanism 1 and used for repairing the surface of a die.
As shown in fig. 3 to 6, the positioning frame mechanism 1 includes a base 101, a positioning sleeve 102, a sliding sleeve 103, a column 104, a second screw 105, a pointer sleeve 106, a fourth screw 107, a cross arm 108, a third screw 109, a first screw 110, a sixth screw 111, a swing frame 112, a yaw rod 113, a fifth screw 114, a nut 115, and a swing head 116, wherein the base 101 is fixedly mounted on the ground, the column 104 is fixedly connected with the base 101, the sliding sleeve 103 can move and rotate on the column 104 through the pointer sleeve 106 and is locked by the third screw 109, the positioning sleeve 102 and the first screw 110 facilitate height positioning of the sliding sleeve 103, the cross arm 108 and the sliding sleeve 103 form a rotation pair and is locked by the second screw 105, the yaw rod 113 and the cross arm 108 form a rotation pair and is locked by the fourth screw 107, the swing frame 112 and the yaw rod 113 form a rotation pair and is locked by the fifth screw 114, the swing head 116 may form a rotation pair with the swing frame 112 and be locked by the sixth screw 111.
As shown in fig. 7 to 16, the dressing head mechanism 2 includes a housing 201, a worm 202, a fourth bevel gear 203, a worm gear 204, a threaded shaft 205, a moving shaft 206, a motor 207, a clamping member 207.1, a grinding head 207.2, a third bevel gear 208, a sixth gear 209, a second gear set 210, a first gear set 211, a planet carrier 212, a shift lever 213, a spline housing 214, a first gear 215, a second bevel gear 216, a first bevel gear 217, a top ball 218, and a hand wheel 219, wherein the housing 201 is a support body, the motor 207 drives the grinding head 207.2 to rotate through the clamping member 207.1, and the feeding and retracting of the grinding head 207.2 can be realized by rotating the hand wheel 219, thereby realizing the dressing of the mold surface; when the slow gear is fed, the first gear 215 is still, and the first gear set 211, the second gear set 210 and the planet carrier 212 form a planetary gear train with a large transmission ratio; when the fast gear is fed, the first gear 215, the first gear set 211 and the second gear set 210 form a whole and rotate at a constant speed with the planet carrier 212; the shift lever 213 realizes the switching between the fast gear and the slow gear by changing the position of the spline sleeve 214; during idle stroke, the high-speed feeding can be adopted to shorten the moving time of the polishing head 207.2, and the low-speed feeding can be adopted during the surface processing of the die to improve the processing quality of the surface of the die.
As shown in fig. 3 to 6, the base 101 is fixedly mounted on the ground through anchor bolts to provide stable support for the spacer mechanism 1, the lower end of the upright 104 is fixedly mounted on the upper side of the base 101 through screws to keep the upright 104 in a vertical state, the front side of the upright 104 is provided with a first scale 104.1, the left side of the upright 104 is vertically provided with a guide slot 104.2, the pointer sleeve 106 is an open cylindrical structure, the upper end of the pointer sleeve 106 is provided with a third pointer 106.1, the inner side of the pointer sleeve is longitudinally provided with a guide bar, the pointer sleeve 106 is coaxially mounted with the upright 104, the guide bar is mounted in the guide slot 104.2, so that the pointer sleeve 106 and the upright 104 form a moving pair, the upper end of the sliding sleeve 103 is provided with a third scale 103.2, the left side of the sliding sleeve is provided with a fan-shaped structure, the fan-shaped structure is provided with a second scale 103.1 and an arc-shaped hole, the longitudinal open circular hole formed on the right side of the sliding sleeve 103 can be mounted on the outer side of the pointer sleeve 106 and form, the two third screws 109 can enable the sliding sleeve 103 to clamp the thimble sleeve 106 and be fixed on the upright post 104, so that rotation locking and height positioning of the sliding sleeve 103 are realized, the positioning sleeve 102 is of an open circular ring structure, the positioning sleeve 102 and the upright post 104 are coaxially mounted and can slide on the upright post 104, a groove is formed in the plane of the upper end of the positioning sleeve 102, reading of the first scale 104.1 is facilitated, and the positioning sleeve 102 can be fixed on the upright post 104 by tightening the first screw 110.
When the height of the sliding sleeve 103 needs to be adjusted, the first screw 110 is firstly unscrewed, the positioning sleeve 102 is moved to move the upper end plane to the target scale, the first screw 110 is locked to fasten the positioning sleeve 102 on the upright post 104, then the two third screws 109 are unscrewed, the sliding sleeve 103 is moved downwards to enable the lower end plane to be tightly attached to the upper end plane of the positioning sleeve 102, and then the two third screws 109 are locked to finish the accurate height adjustment of the sliding sleeve 103.
The left end of the cross arm 108 is of an open structure and is provided with a second pointer 108.3, the right end of the cross arm 108 is provided with a cross arm disc 108.1 and a fourth pointer 108.2, the left side of the cross arm 108 and the sliding sleeve 103 form a rotation pair, the second screw 105 can penetrate through an arc hole on the left side of the sliding sleeve 103 to enable the left end of the cross arm 108 to clamp a sector structure on the left side of the sliding sleeve 103, so that the rotation locking of the cross arm 108 is realized, the rotation angle of the cross arm 108 relative to the sliding sleeve 103 can be indicated on a second scale 103.1 through the second pointer 108.3, three arc holes are uniformly distributed on the cross arm disc 108.1 in the circumferential direction, the upper end of the yaw rod 113 is provided with an upper scale 113.1, the upper scale 113.1 is provided with a fourth scale and three threaded holes uniformly distributed in the circumferential direction, the upper scale 113.1 can form a rotation pair with the cross arm disc 108.1 and can be locked through three fourth screws 107, the rotation angle of, the lower end of the horizontal swing rod 113 is provided with a lower dial 113.2, the lower dial 113.2 is provided with a fifth scale and three threaded holes which are uniformly distributed in the circumferential direction, the left side of the swing frame 112 is provided with a swing frame disc 112.2 and a fifth pointer 112.3, the upper side of the swing frame disc is provided with a sixth pointer 112.1, the upper side of the swing frame disc 112.2 is uniformly distributed with three arc-shaped holes in the circumferential direction, the swing frame disc 112.2 and the lower dial 113.2 can form a revolute pair and can be locked by three fifth screws 114, the rotating angle of the swing frame 112 relative to the horizontal swing rod 113 can be indicated on the fifth scale by the fifth pointer 112.3, the upper end of the swing head 116 is of a semicircular plate structure, the semicircular plate structure is provided with the sixth scale 116.1 and the arc-shaped holes, the semicircular plate structure and the right side of the swing frame 112 form a revolute pair, the sixth screw 111 passes through the arc-shaped holes on the semicircular plate structure and then forms a threaded pair with the swing frame 112, the sixth screw, the rotation angle of the swing head 116 relative to the swing frame 112 can be indicated on the sixth scale 116.1 by the sixth pointer 112.1, the lower end of the swing head 116 is provided with a threaded rod 116.2 for connecting the expansion device, and the nut 115 and the threaded rod 116.2 form a thread pair for locking the expansion device.
As shown in fig. 7 to 16, the right end of the housing 201 is provided with an internal spline 201.1, the upper side is provided with a square hole groove 201.2, the side surface of the square hole groove 201.2 is provided with two top beads 218 for accurately positioning the gear shifting device, the left end of the housing 201 is provided with a threaded hole 201.3, the threaded hole 201.3 and the threaded rod 116.2 form a threaded pair and are locked by a nut 115 to form a double-nut anti-loose structure, so that the fastening connection between the trimming head mechanism 2 and the tail end of the positioning frame mechanism 1 is realized, the hand wheel 219 is arranged on the upper side of the housing 201 to form a rotation pair, the first bevel gear 217 and the lower end of the hand wheel 219 are coaxially fastened, the threaded shaft 205 is arranged inside the housing 201 and forms a rotation pair with the housing 201 by two bearings, the right end of the threaded shaft 205 is provided with a threaded structure, the worm wheel 204 and the left end of the threaded shaft 205 are coaxially fastened, the fourth bevel gear 203 is coaxially and tightly connected with the left end of the worm 202, the third bevel gear 208 is installed inside the shell 201 and forms a rotating pair, the third bevel gear 208 is meshed with the fourth bevel gear 203 to form gear meshing transmission, the sixth gear 209 is coaxially and tightly connected with the left end of the third bevel gear 208, the polishing head 207.2 is tightly connected with an output shaft of the motor 207 through a clamping piece 207.1, the motor 207 is fixedly installed at the right end of the moving shaft 206, an external spline arranged at the left end of the moving shaft 206 is matched and installed with an internal spline 201.1 at the right end of the shell 201, so that the moving shaft 206 and the shell 201 form a moving pair, a threaded hole arranged inside the moving shaft 206 is matched and installed with a threaded structure at the right end of the threaded shaft 205 to form a threaded transmission structure, and the threaded shaft 205 can drive the moving of the moving shaft 206 through the threaded transmission structure after rotating, so as to realize.
The inside backup pad 201.4 that is equipped with of shell 201, backup pad 201.4 upper end is equipped with the round hole, the round hole left side is equipped with fixed spline 201.5, first gear 215 installs in the round hole of backup pad 201.4 upper end and constitutes the revolute pair, the number of teeth of first gear 215 is z1The left end of the planet carrier 212 is provided with a driven spline 215.1, the left side of the planet carrier 31 is provided with a central shaft 212.1, the central shaft 212.1 is coaxially arranged inside the first gear 215,the driving device is characterized in that a rotating pair is formed by two bearings and the first gear 215, the second bevel gear 216 is coaxially and fixedly connected with the left end of the central shaft 212.1, the second bevel gear 216 and the first bevel gear 217 form gear meshing transmission, a rotating spline 212.2 is arranged at the position close to the left end of the central shaft 212.1, the rotating spline 212.2 is fixedly connected with the central shaft 212.1, an internal spline 214.1 is arranged inside the spline sleeve 214, an annular groove arranged outside the spline sleeve is arranged in a circular hole at the lower end of the driving rod 213 and forms a rotating pair with the driving rod 213, the internal spline 214.1 is matched and arranged with the driven spline 215.1, the spline sleeve 214 and the first gear 215 form a moving pair, the upper end of the driving rod 213 extends out of the shell 201 through the square hole 201.2.
Three round holes are circumferentially and uniformly distributed on the right side of the planet carrier 212, a first gear set 211 is rotatably mounted in each round hole, a second gear 211.1 is arranged at the left end of each first gear set 211, and the number of teeth z of each second gear 211.12The right end of the first gear set 211 is provided with a third gear 211.2, and the tooth number z of the third gear 211.2 is 30329, three second gears 211.1 are all meshed with the first gear 215 to form gear mesh transmission, the second gear set 210 is installed inside the shell 201 and forms a rotating pair, the left end of the second gear set is provided with a fourth gear 210.1, and the tooth number z of the fourth gear 210.1430, three third gears 211.2 are meshed with a fourth gear 210.1 to form gear mesh transmission, a fifth gear 210.2 is arranged at the right end of the second gear set 210, and the fifth gear 210.2 is meshed with a sixth gear 209 to form gear mesh transmission.
The motor 207 can drive the sanding head 207.2 to rotate, thereby achieving the finishing of the mould surface.
The clamping member 207.1 can tightly connect the polishing head 207.2 with the output shaft of the motor 207, and the polishing head 207.2 can be removed after the clamping member 207.1 is unscrewed, and other types of polishing heads can be replaced according to the material and the surface characteristics of the mold.
When the surface of the mold is modified, firstly, the height of the sliding sleeve 103 in the positioning frame mechanism 1 and the rotation amount of each joint need to be adjusted, so that the polishing head 207.2 is aligned to the position of the surface of the mold to be modified, and then the hand wheel 219 is rotated to feed the polishing head 207.2 forward, so that the surface of the mold is gradually repaired.
When the slow gear is fed: the shifting lever 213 shifts to the right, the right top ball 218 is clamped in the positioning hole 213.1, the shifting lever 213 drives the spline housing 214 to move to the right, so that the right end of the internal spline 214.1 is matched with the fixed spline 201.5, the left end of the internal spline 214.1 is separated from the matching with the rotating spline 212.2, the first gear 215 is kept static, at the moment, the first gear 215, the planet carrier 212, the three first gear sets 211 and the second gear set 210 form a planetary gear train, and the transmission ratio i between the planet carrier 212 and the second gear set 210 isH4Comprises the following steps:
Figure BDA0002882781520000071
Figure BDA0002882781520000072
clockwise rotating a hand wheel 219, driving a planet carrier 212 to rotate clockwise by a first bevel gear 217 through a gear meshing relationship with a second bevel gear 216, enabling the planet carrier 212 to revolve while rotating three first gear sets 211, so as to enable a second gear set 210 to rotate clockwise, driving a sixth gear 209 and a third bevel gear 208 to rotate anticlockwise by the second gear set 210, driving a fourth bevel gear 203 and a worm 202 to rotate clockwise by the third bevel gear 208, driving the worm gear 204 and a threaded shaft 205 to rotate clockwise by the worm 202, so as to enable a moving shaft 206 to move rightwards, and realizing slow-gear feeding of a polishing head 207.2; the backward movement of the sanding head 207.2 is achieved by turning the handwheel 219 counter-clockwise.
When the fast gear is fed: the shifting lever 213 is shifted to the left, the top ball 218 on the left is clamped in the positioning hole 213.1, the shifting lever 213 drives the spline sleeve 214 to move to the left, so that the left end of the internal spline 214.1 is matched with the rotating spline 212.2, the right end of the internal spline 214.1 is separated from the fixed spline 201.5, and the first gear 215 and the planet carrier 212 rotate at the same speed, at the moment, the first gear 215, the planet carrier 212, the three first gear sets 211 and the second gear set 210 form a whole, relative rotation does not exist between the three first gear sets 211 and the second gear set 210, the transmission ratio between the planet carrier 212 and the second gear set 210 can be regarded asH4＝1。
Clockwise rotating a hand wheel 219, driving a planet carrier 212 to rotate clockwise by a first bevel gear 217 through a gear meshing relationship with a second bevel gear 216, driving a second gear set 210 to rotate at a constant speed by the planet carrier 212 through three first gear sets 211, driving a sixth gear 209 and a third bevel gear 208 to rotate anticlockwise by the second gear set 210, driving a fourth bevel gear 203 and a worm 202 to rotate clockwise by a third bevel gear 208, driving a worm wheel 204 and a threaded shaft 205 to rotate clockwise by the worm 202, thereby enabling a moving shaft 206 to move rightwards, and realizing fast-gear feeding of a polishing head 207.2; the backward movement of the sanding head 207.2 is achieved by turning the handwheel 219 counter-clockwise.
The references to "front", "back", "left", "right", etc., are to be construed as references to orientations or positional relationships based on the orientation or positional relationship shown in the drawings or as orientations and positional relationships conventionally found in use of the product of the present invention, and are intended to facilitate the description of the invention and to simplify the description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Claims (6)

1. The utility model provides a lathe for repairing mould, includes locating rack mechanism (1) and repaiies first mechanism (2), its characterized in that: the positioning frame mechanism (1) has six spatial degrees of freedom, each movable joint is provided with a graduated scale, and the trimming head mechanism (2) has two feeding gears and is fixedly arranged at the tail end of the positioning frame mechanism (1) and used for repairing the surface of a mold;
the positioning frame mechanism (1) comprises a base (101), a positioning sleeve (102), a sliding sleeve (103), an upright post (104), a second screw (105), a pointer sleeve (106), a fourth screw (107), a cross arm (108), a third screw (109), a first screw (110), a sixth screw (111), a swinging frame (112), a swinging rod (113), a fifth screw (114), a nut (115) and a swinging head (116), wherein the base (101) is fixedly arranged on the ground, the upright post (104) is fixedly connected with the base (101), the sliding sleeve (103) can move and rotate on the upright post (104) through the pointer sleeve (106) and is locked by the third screw (109), the positioning sleeve (102) and the first screw (110) are convenient for realizing the height positioning of the sliding sleeve (103), the cross arm (108) and the sliding sleeve (103) form a rotating pair, and are locked by the second screw (105), the transverse swing rod (113) and the cross arm (108) can form a rotation pair and are locked by a fourth screw (107), the swing frame (112) and the transverse swing rod (113) can form a rotation pair and are locked by a fifth screw (114), and the swing head (116) and the swing frame (112) can form a rotation pair and are locked by a sixth screw (111);
the trimming head mechanism (2) comprises a shell (201), a worm (202), a fourth bevel gear (203), a worm gear (204), a threaded shaft (205), a moving shaft (206), a motor (207), a clamping piece (207.1), a polishing head (207.2), a third bevel gear (208), a sixth gear (209), a second gear set (210), a first gear set (211), a planet carrier (212), a shifting lever (213), a spline sleeve (214), a first gear (215), a second bevel gear (216), a first bevel gear (217), a top ball (218) and a hand wheel (219), wherein the shell (201) is a support main body, the motor (207) drives the polishing head (207.2) to rotate through the clamping piece (207.1), and feeding and retreating of the polishing head (207.2) can be realized through rotating the hand wheel (219), so that the surface of a mold is trimmed; when the slow gear is fed, the first gear (215) is still, and the first gear set (211), the second gear set (210) and the planet carrier (212) form a planetary gear train with a large transmission ratio; when the fast gear is fed, the first gear (215), the first gear set (211) and the second gear set (210) form a whole and rotate at a constant speed with the planet carrier (212); the shift lever (213) realizes the switching between the fast gear and the slow gear by changing the position of the spline sleeve (214); during idle stroke, the high-speed feeding can be adopted to shorten the moving time of the polishing head (207.2), and the low-speed feeding can be adopted during the surface processing of the die to improve the processing quality of the surface of the die.
2. A machine tool for repairing molds according to claim 1, characterized in that: the base (101) is fixedly arranged on the ground through foundation bolts and provides stable support for the positioning frame mechanism (1), the lower end of the upright post (104) is fixedly arranged on the upper side of the base (101) through screws and enables the upright post (104) to keep a vertical state, the front side surface of the upright post (104) is provided with a first scale (104.1), the left side of the upright post (104) is vertically provided with a guide groove (104.2), the pointer sleeve (106) is of an open cylindrical structure, the upper end of the pointer sleeve is provided with a third pointer (106.1), the inner side of the third pointer is longitudinally provided with a guide bar, the pointer sleeve (106) and the upright post (104) are coaxially arranged, the guide bar is arranged in the guide groove (104.2), so that the pointer sleeve (106) and the upright post (104) form a moving pair, the upper end of the sliding sleeve (103) is provided with a third scale (103.2), the left side of the sliding sleeve is provided with a fan-shaped structure, the fan-shaped structure is provided with a second scale (103.1) and an arc, the rotating angle of the sliding sleeve (103) relative to the pointer sleeve (106) can be indicated on a third scale (103.2) by a third pointer (106.1), the sliding sleeve (103) can be clamped by two third screws (109) and fixed on the pointer sleeve (106) on the upright post (104) so as to realize the rotation locking and height positioning of the sliding sleeve (103), the positioning sleeve (102) is of an open circular ring structure, the positioning sleeve (102) and the upright post (104) are coaxially mounted and can slide on the upright post (104), a groove is formed in the plane of the upper end of the positioning sleeve (102) so as to facilitate reading of the first scale (104.1), and the fixing of the positioning sleeve (102) on the upright post (104) can be realized by screwing the first screw (110);
because the weight of the accessory connecting part of the sliding and rotating sleeve (103) is large, and accurate height positioning is not convenient to directly carry out, when the height of the sliding and rotating sleeve (103) needs to be adjusted, the first screw (110) is firstly unscrewed, the positioning sleeve (102) is moved to enable the upper end plane of the positioning sleeve to move to a target scale, the first screw (110) is locked, the positioning sleeve (102) is fastened on the upright post (104), then the two third screws (109) are unscrewed, the sliding and rotating sleeve (103) is moved downwards to enable the lower end plane of the sliding and rotating sleeve (103) to be tightly attached to the upper end plane of the positioning sleeve (102), and the two third screws (109) are locked, so that the accurate height adjustment of the sliding and rotating sleeve (103).
3. A machine tool for repairing molds according to claim 1, characterized in that: the left end of the cross arm (108) is of an open structure and is provided with a second pointer (108.3), the right end of the cross arm is provided with a cross arm disc (108.1) and a fourth pointer (108.2), the left side of the cross arm (108) and the sliding sleeve (103) form a rotation pair, a second screw (105) can penetrate through an arc-shaped hole in the left side of the sliding sleeve (103) to enable the left end of the cross arm (108) to clamp a sector structure in the left side of the sliding sleeve (103), so that the rotation locking of the cross arm (108) is realized, the rotation angle of the cross arm (108) relative to the sliding sleeve (103) can be indicated on a second scale (103.1) through the second pointer (108.3), three arc-shaped holes are uniformly distributed in the circumferential direction on the cross arm disc (108.1), an upper dial (113.1) is arranged at the upper end of the cross arm (113), a fourth scale and three threaded holes are uniformly distributed in the circumferential direction are arranged on the upper dial (113.1), the upper dial (113.1) can form a rotation pair with the, the rotating angle of the transverse swing rod (113) relative to the cross arm (108) can be indicated on a fourth scale by a fourth pointer (108.2), the lower end of the transverse swing rod (113) is provided with a lower dial (113.2), the lower dial (113.2) is provided with a fifth scale and three threaded holes which are uniformly distributed in the circumferential direction, the left side of the swing frame (112) is provided with a swing frame disc (112.2) and a fifth pointer (112.3), the upper side of the swing frame disc is provided with a sixth pointer (112.1), the upper side of the swing frame disc (112.2) is uniformly distributed with three arc-shaped holes in the circumferential direction, the swing frame disc (112.2) and the lower dial (113.2) can form a rotating pair and can be locked by three fifth screws (114), the rotating angle of the swing frame (112) relative to the transverse swing rod (113) can be indicated on the fifth scale by the fifth pointer (112.3), the upper end of the swing head (116) is in a semi-circular plate structure, the semi-circular plate structure and the rotating pair are arranged on the semi-circular plate structure and the swing frame (112), the sixth screw (111) penetrates through an arc-shaped hole in the semicircular plate structure and then forms a thread pair with the swing frame (112), the rotation of the swing head (116) relative to the swing frame (112) can be locked by screwing the sixth screw (111), the rotation angle of the swing head (116) relative to the swing frame (112) can be indicated on a sixth scale (116.1) by a sixth pointer (112.1), a threaded rod (116.2) is arranged at the lower end of the swing head (116) and used for connecting expansion equipment, and a nut (115) and the threaded rod (116.2) form a thread pair for locking the expansion equipment.
4. A machine tool for repairing molds according to claim 1, characterized in that: the right end of the shell (201) is provided with an internal spline (201.1), the upper side of the shell is provided with a square hole groove (201.2), the side surface of the square hole groove (201.2) is provided with two top beads (218) for accurately positioning a gear shifting device, the left end of the shell (201) is provided with a threaded hole (201.3), the threaded hole (201.3) and a threaded rod (116.2) form a threaded pair and are locked by a nut (115) to form a double-nut anti-loose structure, so that the trimming head mechanism (2) and the tail end of the positioning frame mechanism (1) are fastened and connected, a hand wheel (219) is arranged on the upper side of the shell (201) to form a rotating pair, a first bevel gear (217) is coaxially fastened and connected with the lower end of the hand wheel (219), a threaded shaft (205) is arranged inside the shell (201) and forms a rotating pair with the shell (201) by two bearings, the right end of the threaded shaft (205) is provided, the worm (202) is horizontally arranged in the shell (201) to form a rotating pair, the worm (202) is meshed with a worm wheel (204) to form a worm and gear transmission structure, a fourth bevel gear (203) is coaxially and tightly connected with the left end of the worm (202), a third bevel gear (208) is arranged in the shell (201) to form a rotating pair, the third bevel gear (208) is meshed with the fourth bevel gear (203) to form gear meshing transmission, a sixth gear (209) is coaxially and tightly connected with the left end of the third bevel gear (208), a polishing head (207.2) is tightly connected with an output shaft of a motor (207) through a clamping piece (207.1), the motor (207) is fixedly arranged at the right end of a moving shaft (206), an external spline arranged at the left end of the moving shaft (206) is matched and arranged with an internal spline (201.1) at the right end of the shell (201), so that the moving shaft (206) and the shell (201) form a moving pair, a threaded transmission structure arranged at the right end of a threaded hole arranged in the moving shaft (206) is The structure can drive the moving shaft (206) to move through the screw transmission structure after the screw shaft (205) rotates, thereby realizing the feeding and retreating actions of the polishing head (207.2).
5. A machine tool for repairing molds according to claim 1, characterized in that: the utility model discloses a bearing plate for a motor vehicle, including shell (201), backup pad (201.4) inside be equipped with backup pad (201.4), backup pad (201.4) upper end is equipped with the round hole, the round hole left side is equipped with fixed spline (201.5), first gear (215) are installed in the round hole of backup pad (201.4) upper end and are constituted the revolute pair, the number of teeth of first gear (215) is z1The left end of the planet carrier (212) is provided with a central shaft (212.1), the central shaft (212.1) is coaxially arranged in the first gear (215), and the central shaft (31) and the first gear (215) are connected through two bearings215) A rotating pair is formed, a second bevel gear (216) is coaxially and fixedly connected with the left end of a central shaft (212.1), the second bevel gear (216) and a first bevel gear (217) form gear meshing transmission, a rotating spline (212.2) is arranged at the position close to the left end of the central shaft (212.1), the rotating spline (212.2) is fixedly connected with the central shaft (212.1), an internal spline (214.1) is arranged inside a spline sleeve (214), an annular groove arranged outside is arranged in a circular hole at the lower end of a shifting rod (213) and forms a rotating pair with the shifting rod (213), the internal spline (214.1) is matched and arranged with a driven spline (215.1), the spline sleeve (214) and the first gear (215) form a moving pair, the upper end of the shifting rod (213) extends out of the upper side of a shell (201) through a square hole groove (201.2), and the upper side of the shifting rod (213);
planet carrier (212) right side circumference equipartition is equipped with three round hole, all rotates in every round hole and installs one first gear train (211), and first gear train (211) left end is equipped with second gear (211.1), the number of teeth z of second gear (211.1)2The right end of the first gear set (211) is provided with a third gear (211.2), and the tooth number z of the third gear (211.2) is 30329, three second gears (211.1) are meshed with the first gear (215) to form gear meshing transmission, the second gear set (210) is installed inside the shell (201) and forms a rotating pair, a fourth gear (210.1) is arranged at the left end of the second gear set, and the number of teeth z of the fourth gear (210.1) is equal to that of teeth z of the fourth gear (210.1)430, three third gears (211.2) are meshed with a fourth gear (210.1) to form gear meshing transmission, a fifth gear (210.2) is arranged at the right end of the second gear set (210), and the fifth gear (210.2) is meshed with a sixth gear (209) to form gear meshing transmission.
6. A machine tool for repairing molds according to claim 1, characterized in that: the motor (207) can drive the polishing head (207.2) to rotate, so that the surface of the die can be modified;
the clamping piece (207.1) can tightly connect the polishing head (207.2) with the output shaft of the motor (207), and the polishing head (207.2) can be taken down and replaced by other types of polishing heads according to the material and surface characteristics of the die after the clamping piece (207.1) is unscrewed;
when the surface of a die is trimmed, firstly, the height of a sliding sleeve (103) in a positioning frame mechanism (1) and the rotation amount of each joint need to be adjusted, so that a polishing head (207.2) is aligned to the position of the surface of the die, which needs to be corrected, and then a hand wheel (219) is rotated to feed the polishing head (207.2) forwards, so that the repair of the surface of the die is gradually completed;
when the slow gear is fed: the shifting lever (213) is shifted to the right, the top ball (218) on the right side is clamped in the positioning hole (213.1), the shifting lever (213) drives the spline sleeve (214) to move rightwards, the right end of the internal spline (214.1) is matched with the fixed spline (201.5), the left end of the internal spline (214.1) is separated from the rotating spline (212.2), so that the first gear (215) is kept static, at the moment, the first gear (215), the planet carrier (212), the three first gear set (211) and the second gear set (210) form a planetary gear train, and the transmission ratio i between the planet carrier (212) and the second gear set (210) is equal to the transmission ratio iH4Comprises the following steps:
Figure FDA0002882781510000031
Figure FDA0002882781510000032
a hand wheel (219) is rotated clockwise, a first bevel gear (217) drives a planet carrier (212) to rotate clockwise through a gear meshing relationship with a second bevel gear (216), the planet carrier (212) enables three first gear sets (211) to revolve around while rotating, so that a second gear set (210) rotates clockwise, the second gear set (210) drives a sixth gear (209) and a third bevel gear (208) to rotate anticlockwise, the third bevel gear (208) drives a fourth bevel gear (203) and a worm (202) to rotate clockwise, the worm (202) drives a worm wheel (204) and a threaded shaft (205) to rotate clockwise, so that a moving shaft (206) moves rightwards, and slow-gear feeding of a polishing head (207.2) is realized; the backward movement of the polishing head (207.2) can be realized by rotating the hand wheel (219) anticlockwise;
when the fast gear is fed: the shifting lever (213) is shifted to the left, the top bead (218) on the left side is clamped in the positioning hole (213.1), the shifting lever (213) drives the spline sleeve (214) to move to the left, the left end of the internal spline (214.1) is matched with the rotating spline (212.2), and the right end of the internal spline (214.1) is matched with the fixed spline (201.5)) The first gear (215) and the planet carrier (212) are disengaged, so that the first gear (215) and the planet carrier (212) keep rotating at the same speed, at the moment, the first gear (215), the planet carrier (212), the three first gear sets (211) and the second gear set (210) form a whole, relative rotation does not exist between the first gear (215), the planet carrier (212), the three first gear sets (211) and the second gear set (210), and the transmission ratio between the planet carrier (212) and the second gear set (210) canH4＝1；
The grinding head device comprises a clockwise rotating hand wheel (219), a first bevel gear (217) drives a planet carrier (212) to rotate clockwise through a gear meshing relationship with a second bevel gear (216), the planet carrier (212) drives a second gear set (210) to rotate at a constant speed through three first gear sets (211), the second gear set (210) drives a sixth gear (209) and a third bevel gear (208) to rotate anticlockwise, the third bevel gear (208) drives a fourth bevel gear (203) and a worm (202) to rotate clockwise, the worm (202) drives a worm wheel (204) and a threaded shaft (205) to rotate clockwise, so that a moving shaft (206) moves rightwards, and the fast-gear feeding of a grinding head (207.2) is realized; the backward movement of the polishing head (207.2) can be realized by rotating the hand wheel (219) anticlockwise.
CN202110004826.5A 2021-01-04 2021-01-04 Machine tool for repairing die Withdrawn CN112847042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110004826.5A CN112847042A (en) 2021-01-04 2021-01-04 Machine tool for repairing die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110004826.5A CN112847042A (en) 2021-01-04 2021-01-04 Machine tool for repairing die

Publications (1)

Publication Number Publication Date
CN112847042A true CN112847042A (en) 2021-05-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110004826.5A Withdrawn CN112847042A (en) 2021-01-04 2021-01-04 Machine tool for repairing die

Country Status (1)

Country Link
CN (1) CN112847042A (en)

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Application publication date: 20210528