CN109434669B - Hub superfinishing machine - Google Patents

Hub superfinishing machine Download PDF

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Publication number
CN109434669B
CN109434669B CN201811425488.7A CN201811425488A CN109434669B CN 109434669 B CN109434669 B CN 109434669B CN 201811425488 A CN201811425488 A CN 201811425488A CN 109434669 B CN109434669 B CN 109434669B
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CN
China
Prior art keywords
swing
transition
unit
counterweight
spindle
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Application number
CN201811425488.7A
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Chinese (zh)
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CN109434669A (en
Inventor
吴文志
肖亮
陈雷
周晓栋
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Wuxi Machine Tools Co Ltd
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Wuxi Machine Tools Co Ltd
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Priority to CN201811425488.7A priority Critical patent/CN109434669B/en
Publication of CN109434669A publication Critical patent/CN109434669A/en
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Classifications

    • 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
    • B24B35/00—Machines or devices designed for superfinishing surfaces on work, i.e. by means of abrading blocks reciprocating with high frequency
    • 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
    • B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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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 provides a hub superfinishing machine, which can solve the technical problem of large vibration of the existing hub superfinishing machine. The hub superfinishing machine comprises a swinging mechanism, wherein the swinging mechanism comprises an eccentric shaft, a connecting rod and a swinging main shaft, and is characterized in that: the swinging mechanism further comprises a transition electric spindle, an eccentric shaft is arranged at the end part of the transition electric spindle, and two ends of the connecting rod are respectively connected with the eccentric shaft and the swinging spindle. The traditional asynchronous motor, the belt and the transition shaft of the swing mechanism are integrated into a transition electric main shaft, so that transition links can be reduced, loss of precision is avoided, balance is improved, and vibration is further reduced.

Description

Hub superfinishing machine
Technical Field
The invention relates to the field of superfinishing machines, in particular to a hub superfinishing machine.
Background
The hub superfinishing machine generally comprises a lathe bed, a loading and unloading mechanism, a workpiece rotating mechanism, a workpiece clamp, a swinging mechanism and a superfinishing head, wherein the swinging mechanism comprises an asynchronous motor, a belt, a transition shaft, an eccentric shaft, a connecting rod and a swinging main shaft, the asynchronous motor is connected with the transition shaft through the belt, the eccentric shaft is arranged at the end part of the transition shaft, and the eccentric shaft is connected with the swinging main shaft through the connecting rod so as to realize the simultaneous swinging of the superfinishing head arranged at the end part of the swinging main shaft and the swinging main shaft. The hub superfinishing machine using the swinging mechanism has larger vibration and affects the processing quality of products.
Disclosure of Invention
Aiming at the problems, the invention provides the hub superfinishing machine, which can solve the technical problem of large vibration of the existing hub superfinishing machine, can reduce transition links, avoid precision loss, improve balance and further reduce vibration.
The technical scheme is that the hub superfinishing machine comprises a swinging mechanism, wherein the swinging mechanism comprises an eccentric shaft, a connecting rod and a swinging main shaft, and is characterized in that: the swinging mechanism further comprises a transition electric spindle, the end part of the transition electric spindle is provided with the eccentric shaft, and two ends of the connecting rod are respectively connected with the eccentric shaft and the swinging spindle.
Further, the transition motorized spindle comprises a transition sleeve, a transition mandrel and a motor, the transition mandrel is axially arranged in the inner cavity of the transition sleeve, the front end part of the transition mandrel is matched with the transition sleeve through a bearing, the rear end part of the transition mandrel is matched with a transition rear cover through a bearing, the transition rear cover is fixedly connected with the rear end part of the transition sleeve, a rotor of the motor is sleeved on the outer edge surface of the transition mandrel and is fixedly connected with the transition mandrel, and a stator of the motor is sleeved on the outer edge surface of the rotor and is fixedly connected with the transition sleeve.
Still further, the front end portion of transition dabber installs the base, be equipped with pivot angle adjustment structure, counter weight balance structure and on the base the eccentric shaft, pivot angle adjustment structure includes first guide unit, detachable first locking piece and first scale unit, the eccentric shaft can follow first guide unit removes and through first locking piece and base relatively fixed, first scale unit is used for showing the translation volume of eccentric shaft, counter weight balance structure includes counter weight unit, second guide unit, detachable second locking piece and second scale unit, the counter weight unit can be followed the directional removal of second guide unit and through second locking piece with the eccentric shaft relatively fixed, the second guide unit with first guide unit parallel arrangement, the second scale unit is used for showing the translation volume of counter weight unit.
Still further, the first guiding unit comprises a first sliding block fixed at the lower end of the shaft body of the eccentric shaft and a first sliding groove arranged on a base, the first sliding block is in sliding fit with the first sliding groove, the first locking piece comprises a first locking bolt, the base is composed of a base body and a splicing block, the base body is formed with a first sliding groove left side wall and a first sliding groove bottom wall, the splicing block is formed with a first sliding groove right side wall, the first locking bolt passes through the splicing block and the first sliding block and then is in threaded connection with the base body, and the first sliding block is provided with a first kidney-shaped through hole which is matched with the first locking bolt and extends along the length direction of the first sliding groove; a third sliding block is convexly arranged at the lower part of the splicing block to the left, a third sliding groove is arranged at the right side of the base body, and the third sliding block is in sliding fit with the third sliding groove;
the counterweight unit is of a frame structure formed by splicing a left counterweight, a right counterweight, a front counterweight and a rear counterweight, the counterweight unit surrounds the outside of the first chute, the second guide unit comprises a second sliding block fixed on the right side of the base and a second chute arranged at the bottom of the right counterweight, the second sliding block is in sliding fit with the second chute, the second locking piece comprises a second locking bolt, the second locking bolt penetrates through the left counterweight and is in threaded connection with the base, the left counterweight is provided with a second kidney-shaped perforation which is matched with the second locking bolt and extends along the length direction of the first chute, the front counterweight is in threaded connection with a front adjusting bolt propping up against the front end part of the first sliding block, and the rear counterweight is in threaded connection with a rear adjusting bolt propping up against the rear end part of the first sliding block;
the first sliding groove and the second sliding groove are arranged in parallel and are of dovetail structures.
Further, the first scale unit comprises a first main scale and a first vernier which are matched with each other, the first main scale is fixed at the lower right side of the base, the first vernier is fixedly connected with the first sliding block through a connecting rod penetrating through the right side wall of the first sliding groove, and the right side wall of the first sliding groove is provided with a third kidney-shaped through hole which is matched with the connecting rod and extends along the length direction of the first sliding groove;
the second scale unit comprises a second main scale and a second vernier which are mutually adhered and arranged in parallel, the second main scale is fixed on the upper left side of the base body, and the second vernier is fixed on the left balancing weight.
Further, the swing spindle comprises a swing spindle, a swing sleeve, a swing transition shaft, a jump-in structure and a swing head structure, the swing spindle is of a hollow structure, the swing spindle axially penetrates through the swing sleeve and is matched with the swing sleeve through a bearing, the swing transition shaft is connected with the swing spindle, the jump-in structure comprises an air cylinder and a pull rod, the air cylinder is fixed at the rear end position of the swing spindle, the pull rod is connected with a piston of the air cylinder and axially penetrates through the swing spindle of the swing spindle, the pull rod is fixedly connected with the swing spindle, the swing head structure comprises a jump-in rocker, a rocker seat, a support and a reset unit, the jump-in rocker is fixed at the front end position of the pull rod, the rocker seat is arranged at the front side of the jump-in rocker and is rotatably supported on the support at the two sides, the right side position of the rocker seat is in abutment with the right side position of the jump-in abutment with the left side position of the rocker seat, the pull rod is connected with the left side position of the swing spindle at intervals, the support is in abutment with the left side position of the swing spindle, and the swing spindle is in abutment with the front side position of the swing seat is fixedly connected with the front side of the swing seat, and the reset unit is in abutment with the left side position.
Still further, reset unit includes guide block, guide bolt and reset spring, the guide block has seted up the guiding hole and is fixed in the front end position of swing dabber, guide bolt installs in the guiding hole and the nut position support the left side position of headstock, reset spring cover is located guide bolt and both ends elasticity support respectively the nut position of guide block and guide bolt.
Furthermore, a U-shaped limiting sleeve is fixed at the right side part of the swing seat, and the right side part of the jump-in seesaw extends into the U-shaped limiting sleeve.
Further, the hub superfinishing machine also comprises a machine body, a feeding and discharging mechanism, a workpiece rotating mechanism, a workpiece clamp and a superfinishing head arranged at the front end part of the swinging main shaft,
the feeding and discharging mechanism comprises a first X-axis translation unit, a first Y-axis translation unit and a first Z-axis translation unit, wherein the first Y-axis translation unit is installed on a sliding table of the first X-axis translation unit, the first Z-axis translation unit is installed on a sliding table of the first Y-axis translation unit, a clamping jaw cylinder is installed on a sliding table of the first Z-axis translation unit, and a clamping jaw matched with the hub is installed at the output end of the clamping jaw cylinder;
the workpiece rotating mechanism comprises a workpiece shaft motor and a workpiece shaft, and the workpiece shaft is fixedly connected with an output shaft of the workpiece shaft motor;
the workpiece clamp is fixed at the end part of the workpiece shaft;
the superfinishing head comprises a swinging head support and an oilstone, wherein the swinging head support is fixedly connected with the output end of the swinging main shaft, and the oilstone is fixedly connected with the swinging head support.
According to the invention, the traditional asynchronous motor, the belt and the transition shaft of the swing mechanism are integrated into one transition electric main shaft, so that the transition links are reduced, the loss of precision is avoided, the balance is improved, the vibration of the equipment is effectively reduced, the processing quality of the product is ensured, and the whole space of the equipment is compact.
Drawings
Fig. 1 is a schematic view of a first view structure according to the present invention.
Fig. 2 is a schematic view of a second view structure according to the present invention.
Fig. 3 is a schematic view of the swing mechanism of fig. 1 partially enlarged.
Fig. 4 is an enlarged schematic diagram of a part of the feeding and discharging mechanism in fig. 1.
Fig. 5 is a schematic cross-sectional view of the assembled transitional motorized spindle, eccentric shaft, pivot angle adjustment structure, and counterweight balance structure of the present invention.
Fig. 6 is a schematic cross-sectional view of the mating installation of the eccentric shaft, the pivot angle adjustment structure and the counterweight balance structure of the invention.
Fig. 7 is a schematic cross-sectional view of a base of the present invention.
Fig. 8 is a left side structural schematic view of the counterweight balancing structure of the invention.
Fig. 9 is a right side structural schematic view of the counterweight balancing structure of the invention.
Fig. 10 is a schematic view showing a state of the transitional motorized spindle, the eccentric shaft, the swing angle adjusting structure and the counterweight balancing structure according to the first view angle of the present invention.
Fig. 11 is a schematic view showing a state of the transitional motorized spindle, the eccentric shaft, the swing angle adjusting structure and the counterweight balancing structure according to the invention from a second view angle.
Fig. 12 is a schematic cross-sectional structure of the swing spindle of the present invention.
Fig. 13 is a schematic cross-sectional view showing the fitting of the swing head structure and the front end portion of the swing spindle of the present invention.
Fig. 14 is a schematic perspective view showing the fitting of the swing head structure and the front end portion of the swing spindle.
Fig. 15 is a schematic cross-sectional structure of the swing spindle of the present invention.
Fig. 16 is a schematic cross-sectional view showing the engagement of the jump-in structure and the rear end portion of the swing main shaft according to the present invention.
Detailed Description
As shown in fig. 1 to 16, the hub superfinishing machine comprises a machine body 100, a loading and unloading mechanism 200, a workpiece turning mechanism 300, a workpiece clamp, a swinging mechanism and a superfinishing head 800 arranged at the output end of the swinging mechanism, wherein the loading and unloading mechanism 200, the workpiece turning mechanism 300 and the workpiece clamp are arranged on the machine body 100.
The feeding and discharging mechanism comprises a first X-axis translation unit, a first Y-axis translation unit and a first Z-axis translation unit, wherein the first Y-axis translation unit is arranged on a sliding table of the first X-axis translation unit, the first Z-axis translation unit is arranged on a sliding table of the first Y-axis translation unit, a clamping jaw cylinder is arranged on a sliding table of the first Z-axis translation unit, and a clamping jaw matched with a hub is arranged at the output end of the clamping jaw cylinder;
the workpiece rotating mechanism 300 comprises a workpiece shaft motor and a workpiece shaft, and the workpiece shaft is fixedly connected with an output shaft of the workpiece shaft motor;
the workpiece clamp is fixed at the end part of the workpiece shaft;
the swinging mechanism comprises a transition electric spindle 400, a swinging spindle 600, an eccentric link mechanism and a second Z-axis translation unit 700, wherein the transition electric spindle 400 drives the swinging spindle 600 to swing through the eccentric link mechanism, and the second Z-axis translation unit 700 is used for driving the transition electric spindle 400 and the swinging spindle 600 to move along the Z axis;
super-fine head 800 includes a swing head holder and an oilstone (not shown), the swing head holder is fixedly connected with swing head seat 601 at the front end of swing spindle 600, and the oilstone is fixedly connected with the swing head holder.
The first X-axis moving unit of the feeding and discharging mechanism 200 comprises a first X-axis cylinder 211, a first X-axis sliding table 212, a first X-axis sliding block and a first X-axis guide rail 213, wherein the first X-axis cylinder 211 and a pair of first X-axis guide rails 213 are fixed on the lathe bed 100, a piston rod of the first X-axis cylinder 211 is connected with the first X-axis sliding table 212, the first X-axis sliding blocks are fixed on two sides of the first X-axis sliding table, and the first X-axis sliding blocks are in sliding fit with the first X-axis guide rails 213; the first Y-axis moving unit comprises a first Y-axis cylinder, a first Y-axis sliding table 221, a first Y-axis sliding block and a first Y-axis guide rail 222, wherein the first Y-axis cylinder and a pair of first Y-axis guide rails 222 are fixed on the first X-axis sliding table 212, a piston rod of the first Y-axis cylinder is connected with a horizontal main body of the first Y-axis sliding table 221, the first Y-axis sliding blocks are fixed on two sides of the horizontal main body of the first Y-axis sliding table 221, and the first Y-axis sliding blocks are in sliding fit with the first Y-axis guide rails 222; the first Z-axis moving unit comprises a first Z-axis cylinder, a first Z-axis sliding table 232, a first Z-axis sliding block 234 and a first Z-axis guide rail 233, wherein the first Z-axis cylinder 231 is fixed on the horizontal main body of the first Y-axis sliding table 221, a pair of first Z-axis guide rails 233 are fixed on the vertical support of the first Y-axis sliding table 221, a piston rod of the first Z-axis cylinder 231 is connected with the first Z-axis sliding table 232, the first Z-axis sliding blocks 234 are fixed on two sides of the first Z-axis sliding table 232, and the first Z-axis sliding blocks 234 are in sliding fit with the first Z-axis guide rails 233; the first Z-axis sliding table 232 is provided with a clamping cylinder 241, and two side output ends of the clamping cylinder 241 are respectively provided with a clamping jaw 242 matched with the hub.
The transition motorized spindle 400 comprises a transition sleeve 402, a transition mandrel 401 and a motor, wherein the transition mandrel 401 is axially arranged in the inner cavity of the transition sleeve 402, the front end part of the transition mandrel 401 is matched with the transition sleeve 402 through a bearing 405, the rear end part of the transition mandrel 401 is matched with a transition rear cover 407 through a bearing 406, the transition rear cover 407 is fixedly connected with the rear end part of the transition sleeve 402, a rotor 403 of the motor is sleeved on the outer edge surface of the transition mandrel 401 and is fixedly connected with the transition mandrel 401, and a stator 404 of the motor is sleeved on the outer edge surface of the rotor 403 and is fixedly connected with the transition sleeve 402.
The swinging spindle 600 comprises a swinging spindle 605, a swinging sleeve 606, a swinging transition shaft 609, a jumping structure and a swinging head structure, the swinging spindle 605 is of a hollow structure, the swinging spindle 605 axially penetrates through the swinging sleeve 606 and is matched with the swinging sleeve 606 through bearings 607 and 608, one end of the swinging transition shaft 609 is connected with the other end of the rod body 501 through a pin shaft, the other end of the swinging transition shaft is connected with the swinging spindle 605, the jumping structure comprises a cylinder and a pull rod 604, the cylinder is fixed at the rear end part of the swinging spindle 600, specifically, the cylinder comprises a cylinder body 613 and a piston 614, a connecting sleeve 610 is fixed at the front end part of the cylinder body 613, the connecting sleeve 610 is matched with the swinging spindle 605 through a bearing 611, one end of the pull rod 604 stretches into the cylinder body 613 and is matched with the piston 614 through the bearing 615, the other end of the pull rod 604 axially penetrates through the swinging spindle 605 of the swinging spindle 600, the pull rod 604, the swinging mandrel 605 and the inner side and the outer side of the synchronizing sleeve 612 are respectively in interference fit to realize the fixation and synchronization of the pull rod 604 and the swinging mandrel 605, the rear end of the piston of the cylinder is connected with the signaling pull rod 616, the signaling pull rod 616 is matched with the signaling switch, the relative position of the pull rod is fed back, the swinging structure comprises a jump-in rocker 602, a swinging seat 601, a support 624 and a resetting unit, the jump-in rocker 602 is fixed at the front end part of the pull rod 604 through a third locking bolt 603, the swinging seat 601 is arranged at the front side of the jump-in rocker 602, two sides of the swinging seat 601 are rotatably supported on the support 624 through rotating shafts, bearings matched with the rotating shafts are arranged in the support 624 and are packaged through a cover plate 625, two sides of the two supports 624 are respectively connected through an arc-shaped baffle 626, the right side part of the swinging seat 601 is propped against the right side part of the jump-in rocker 602, the left side part of the swinging seat 601 is arranged at intervals with the left side part of the jump-in rocker 602, the support 624 is fixedly connected with the front end part of the swinging mandrel 605, the reset unit elastically abuts against the left side of the swing seat 601 forwards, the inner side of the swing seat 601 is provided with an inward concave inclined surface 620, and the inward concave inclined surface 620 can avoid interference with the jump-in rocker 602 when the swing seat deflects. By arranging the jump-in structure and the swing head structure on the swing main shaft, the structure of the super-fine head 800 can be simplified, the quality of the super-fine head 800 can be reduced, and further the swing frequency of the super-fine head 800 can be improved; meanwhile, the jump-in structure drives the swing head seat to swing through the jump-in seesaw on the basis of the jump-in function, so that the swing operation of the superfinishing head 800 is realized, the overall structure is more compact, the quality is low, the quality of the output end of the swing main shaft is reduced, and the swing frequency of the superfinishing head 800 can be further promoted.
The reset unit of the swing spindle comprises a guide block 623, a guide bolt 622 and a reset spring 621, wherein the guide block 623 is provided with a guide hole and is fixed at the front end part of the swing spindle 605, the guide bolt 622 is arranged in the guide hole, the nut part abuts against the left side part of the swing head seat 601, the reset spring 621 is sleeved on the guide bolt 622, and the two ends of the reset spring are respectively elastically abutted against the guide block and the nut part of the guide bolt 622. The guide bolt can elastically lean against the left side part of the pendulum seat 1 forwards along the guide hole under the action of the return spring, so that the pendulum seat can rotate and return after each pull rod returns.
The upper collision block 617 and the lower collision block 618 made of hard alloy are respectively embedded in the parts, which are mutually impacted, of the right sides of the swinging head seat 601 and the jumping-in rocker 602 of the swinging main shaft, so that the service lives of the swinging head seat and the jumping-in rocker are prolonged; the right side part of the pendulum seat 601 is fixed with a U-shaped limiting sleeve 619, and the right side part of the jump-in rocker 602 extends into the U-shaped limiting sleeve 619, so that the positions of the positions where the pendulum seat 601 and the jump-in rocker 602 strike each other are relatively fixed.
The eccentric link mechanism comprises an eccentric shaft, a link and a base, wherein the eccentric shaft is arranged on the base, the base is arranged at the end part of a transition electric spindle 400, the two ends of the link are respectively connected with the eccentric shaft and a swinging spindle 600, specifically, one end of a rod body 501 of the link is sleeved on a shaft body 505 of the eccentric shaft through a sleeve 502 and is matched with the end cover 504 through a bearing 503, the base is provided with a swinging angle adjusting structure and a counterweight balance structure, the swinging angle adjusting structure comprises a first guide unit, a detachable first locking piece and a first scale unit, the eccentric shaft can move along the first guide unit and is relatively fixed with the base through the first locking piece, the first scale unit is used for showing the translation amount of the eccentric shaft, the counterweight balance structure comprises a counterweight unit, a second guide unit, a detachable second locking piece and a second scale unit, the counterweight unit can move directionally along the second guide unit and is relatively fixed with the eccentric shaft through the second locking piece, the second guide unit and the first guide unit are arranged in parallel, and the second scale unit is used for showing the translation amount of the counterweight unit; the balance angle adjusting structure translates the eccentric shaft to change the balance angle, and simultaneously adjusts the relative position of the balance weight unit through the balance weight balancing structure so as to realize balance weight balance, thereby effectively reducing vibration, avoiding resonance, improving the superfinishing quality of the product, ensuring the further improvement of the swing frequency of the superfinishing machine and improving the superfinishing efficiency of the product; the arrangement of the first scale unit and the second scale unit can realize the rapid and accurate translation of the counterweight unit and the eccentric shaft; the balance weight mechanism is arranged at the end part of the shaft body of the transition shaft, namely at the output end of the transmission, is not arranged on the swinging head, namely at the final end of the transmission, and can effectively avoid the influence of the cantilever and the transmission ratio on balance weight adjustment.
The first guiding unit of the eccentric link mechanism comprises a first sliding block 506 fixed at the lower end of a shaft body 504 of the eccentric shaft and a first sliding groove arranged on a base, the first sliding block 506 is in sliding fit with the first sliding groove, the first locking piece comprises a first locking bolt 516, the base consists of a base body 507 and a splicing block 508, the base body 507 is provided with a first sliding groove left side wall 509 and a first sliding groove bottom wall 510, the splicing block 508 is provided with a first sliding groove right side wall 511, the first locking bolt 516 passes through the splicing block 508 and the first sliding block 506 and is in threaded connection with the base body 507, and the first sliding block 506 is provided with a first kidney-shaped through hole which is matched with the first locking bolt 516 and extends along the length direction of the first sliding groove; the lower part of the splicing block 508 is provided with a third sliding block 513 in a protruding way to the left, the right side of the seat body 507 is provided with a third sliding groove 514, and the third sliding block 513 is in sliding fit with the third sliding groove 514; the first chute and the second chute are arranged in parallel and are of dovetail structures; the counterweight unit is a frame structure formed by splicing a left counterweight 521, a right counterweight 522, a front counterweight 523 and a rear counterweight 524, the counterweight unit surrounds the outside of the first chute, the second guide unit comprises a second slide block 529 fastened and fixed on the right clamping groove 515 of the base 507 and a second chute arranged at the bottom of the right counterweight 522, the second slide block 529 is in sliding fit with the second chute, the second locking piece comprises a second locking bolt 527, the second locking bolt 527 penetrates through the left counterweight 521 and is in threaded connection with the base 507, the left counterweight 521 is provided with a second kidney-shaped through hole 528 which is matched with the second locking bolt 527 and extends along the length direction of the first chute, the front counterweight 523 is in threaded connection with a front adjusting bolt 526 which is propped against the front end part of the first slide block 506, and the rear counterweight 524 is in threaded connection with a rear adjusting bolt 525 which is propped against the rear end part of the first slide block 506.
The first scale unit of the eccentric link mechanism comprises a first main scale 518 and a first cursor 517 which are matched with each other, the first main scale 518 is fixed at the lower right side of the base 507, the first cursor 517 is fixedly connected with the first slide block 506 through a connecting arm penetrating through the right side wall of the first chute, and the right side wall of the first chute is provided with a third kidney-shaped through hole 512 which is matched with the connecting arm and extends along the length direction of the first chute; the second scale unit includes a second main scale 519 and a second cursor 520 which are mutually bonded and arranged in parallel, the second main scale 519 is fixed on the upper left side of the base 507, and the second cursor 520 is fixed on the left balancing weight 521. When the balance weight is adjusted, the second locking bolt is loosened, the press-fit constraint on the balance weight unit is released, then the relative position of the balance weight unit is adjusted along the second sliding groove, and the fixing of the balance weight unit is the opposite operation. The counterweight unit is arranged to be of a frame body structure, the front side adjusting bolt and the rear side adjusting bolt are arranged at the front side and the rear side of the frame body, on one hand, the counterweight unit plays a role of a support when being balanced by the counterweight, the structure is simpler and more compact, and on the other hand, the front side adjusting bolt and the rear side adjusting bolt can keep the relative position of the first sliding block when the splicing block, the seat body and the first sliding block are connected and fixed, so that the accuracy of adjustment is ensured.
The second Z-axis translation unit drive includes a servo motor 701, a screw rod 702, a second Z-axis sliding table 704, a second Z-axis sliding block 705 and a second Z-axis guide rail 706, the servo motor 701 and a pair of second Z-axis guide rails 706 are fixed on the machine base, the output end of the servo motor 701 is connected with the screw rod 702, the second Z-axis sliding table 704 is fixed with the second Z-axis sliding block 705 matched with the second Z-axis guide rail 706 and a screw nut seat matched with the screw rod 702, the machine base is fixed on the machine body 100 and is provided with a screw rod bearing seat 703 matched with the screw rod 702, and the transition motorized spindle 400 and the swing spindle 600 are fixed on the second Z-axis sliding table 704.

Claims (7)

1. The hub superfinishing machine comprises a swinging mechanism, wherein the swinging mechanism comprises an eccentric shaft, a connecting rod and a swinging main shaft, and is characterized in that: the swinging mechanism further comprises a transition electric spindle, the end part of the transition electric spindle is provided with the eccentric shaft, and two ends of the connecting rod are respectively connected with the eccentric shaft and the swinging spindle; the swing mechanism further comprises a second Z-axis translation unit, and the second Z-axis translation unit is used for driving the transition motorized spindle and the swing spindle to move along the Z axis;
the transition motorized spindle comprises a transition sleeve, a transition mandrel and a motor, wherein the transition mandrel is axially arranged in an inner cavity of the transition sleeve, the front end part of the transition mandrel is matched with the transition sleeve through a bearing, the rear end part of the transition mandrel is matched with a transition rear cover through a bearing, the transition rear cover is fixedly connected with the rear end part of the transition sleeve, a rotor of the motor is sleeved on the outer edge surface of the transition mandrel and is fixedly connected with the transition mandrel, and a stator of the motor is sleeved on the outer edge surface of the rotor and is fixedly connected with the transition sleeve;
one end of a rod body of the connecting rod is sleeved on the shaft body of the eccentric shaft through a sleeve and is matched with the shaft body through a bearing, and the end cover is encapsulated;
the transition mandrel comprises a transition mandrel, and is characterized in that a base is arranged at the front end part of the transition mandrel, a swing angle adjusting structure, a counterweight balancing structure and an eccentric shaft are arranged on the base, the swing angle adjusting structure comprises a first guide unit, a detachable first locking piece and a first scale unit, the eccentric shaft can move along the first guide unit and is relatively fixed with the base through the first locking piece, the first scale unit is used for showing the translation amount of the eccentric shaft, the counterweight balancing structure comprises a counterweight unit, a second guide unit, a detachable second locking piece and a second scale unit, the counterweight unit can move along the second guide unit in a directional manner and is relatively fixed with the eccentric shaft through the second locking piece, the second guide unit is parallel to the first guide unit, and the second scale unit is used for showing the translation amount of the counterweight unit.
2. The hub superfinishing machine of claim 1, wherein: the first guide unit comprises a first sliding block fixed at the lower end of the shaft body of the eccentric shaft and a first sliding groove arranged on a base, the first sliding block is in sliding fit with the first sliding groove, the first locking piece comprises a first locking bolt, the base is composed of a base body and a splicing block, the base body is provided with a first sliding groove left side wall and a first sliding groove bottom wall, the splicing block is provided with a first sliding groove right side wall, the first locking bolt penetrates through the splicing block and the first sliding block and then is in threaded connection with the base body, and the first sliding block is provided with a first kidney-shaped through hole which is matched with the first locking bolt and extends along the length direction of the first sliding groove; a third sliding block is convexly arranged at the lower part of the splicing block to the left, a third sliding groove is arranged at the right side of the base body, and the third sliding block is in sliding fit with the third sliding groove;
the counterweight unit is of a frame structure formed by splicing a left counterweight, a right counterweight, a front counterweight and a rear counterweight, the counterweight unit surrounds the outside of the first chute, the second guide unit comprises a second sliding block fixed on the right side of the base and a second chute arranged at the bottom of the right counterweight, the second sliding block is in sliding fit with the second chute, the second locking piece comprises a second locking bolt, the second locking bolt penetrates through the left counterweight and is in threaded connection with the base, the left counterweight is provided with a second kidney-shaped perforation which is matched with the second locking bolt and extends along the length direction of the first chute, the front counterweight is in threaded connection with a front adjusting bolt propping up against the front end part of the first sliding block, and the rear counterweight is in threaded connection with a rear adjusting bolt propping up against the rear end part of the first sliding block;
the first sliding groove and the second sliding groove are arranged in parallel and are of dovetail structures.
3. The hub superfinishing machine of claim 2, wherein: the first scale unit comprises a first main scale and a first vernier which are matched with each other, the first main scale is fixed at the lower part of the right side of the base body, the first vernier is fixedly connected with the first sliding block through a connecting rod penetrating through the right side wall of the first sliding groove, and the right side wall of the first sliding groove is provided with a third kidney-shaped through hole which is matched with the connecting rod and extends along the length direction of the first sliding groove;
the second scale unit comprises a second main scale and a second vernier which are mutually adhered and arranged in parallel, the second main scale is fixed on the upper left side of the base body, and the second vernier is fixed on the left balancing weight.
4. The hub superfinishing machine of claim 1, wherein: the swing spindle comprises a swing spindle, a swing sleeve, a swing transition shaft, a jump-in structure and a swing head structure, wherein the swing spindle is of a hollow structure, the swing spindle axially penetrates through the swing sleeve and is matched with the swing sleeve through a bearing, the swing transition shaft is connected with the swing spindle, the jump-in structure comprises an air cylinder and a pull rod, the air cylinder is fixed at the rear end position of the swing spindle, the pull rod is connected with a piston of the air cylinder and axially penetrates through the swing spindle of the swing spindle, the pull rod is fixedly connected with the swing spindle, the swing head structure comprises a jump-in rocker, a rocker seat, a support and a reset unit, the jump-in rocker is fixed at the front end position of the pull rod, the rocker seat is arranged at the front side of the jump-in rocker and is rotatably supported on the support at the two sides of the support, the right side position of the rocker seat is propped against the right side position of the jump-in the rocker seat, the left side position of the rocker seat is arranged at intervals with the left side position of the rocker seat of the jump-in the rocker, the pull rod is fixedly connected with the front end position of the swing spindle, and the reset unit is propped against the left side of the swing seat.
5. The hub superfinishing machine of claim 4, wherein: the reset unit comprises a guide block, a guide bolt and a reset spring, wherein the guide block is provided with a guide hole and is fixed at the front end part of the swing mandrel, the guide bolt is arranged in the guide hole, the nut part abuts against the left side part of the swing seat, and the reset spring is sleeved on the guide bolt, and the two ends of the reset spring respectively elastically abut against the nut parts of the guide block and the guide bolt.
6. The hub superfinishing machine of claim 5, wherein: the right side part of the pendulum seat is fixedly provided with a U-shaped limiting sleeve, and the right side part of the jump-in seesaw stretches into the U-shaped limiting sleeve.
7. The hub superfinishing machine of claim 1, wherein: the hub superfinishing machine also comprises a lathe bed, a feeding and discharging mechanism, a workpiece rotating mechanism, a workpiece clamp and a superfinishing head arranged at the front end part of the swing main shaft,
the feeding and discharging mechanism comprises a first X-axis translation unit, a first Y-axis translation unit and a first Z-axis translation unit, wherein the first Y-axis translation unit is installed on a sliding table of the first X-axis translation unit, the first Z-axis translation unit is installed on a sliding table of the first Y-axis translation unit, a clamping jaw cylinder is installed on a sliding table of the first Z-axis translation unit, and a clamping jaw matched with the hub is installed at the output end of the clamping jaw cylinder;
the workpiece rotating mechanism comprises a workpiece shaft motor and a workpiece shaft, and the workpiece shaft is fixedly connected with an output shaft of the workpiece shaft motor;
the workpiece clamp is fixed at the end part of the workpiece shaft;
the superfinishing head comprises a swinging head support and an oilstone, wherein the swinging head support is fixedly connected with the output end of the swinging main shaft, and the oilstone is fixedly connected with the swinging head support.
CN201811425488.7A 2018-11-27 2018-11-27 Hub superfinishing machine Active CN109434669B (en)

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CN110421407A (en) * 2019-09-05 2019-11-08 沈阳机床成套设备有限责任公司 Indexing mechanism and lathe

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JP2008272841A (en) * 2007-04-25 2008-11-13 Nsk Ltd Grinding wheel swinging mechanism for superfinishing machine
JP2013173201A (en) * 2012-02-24 2013-09-05 Nsk Ltd Superfinishing device
CN103659567A (en) * 2013-11-25 2014-03-26 李东炬 Ultra-precision machine special for machining nuclear power bearing rings
CN203765439U (en) * 2014-01-21 2014-08-13 濮阳贝英数控机械设备有限公司 Double-row spherical surface superfinishing swing angle automatic adjusting mechanism
CN205465655U (en) * 2016-01-17 2016-08-17 浙江陀曼智造科技有限公司 Super smart quick -witted swing mechanism
CN209207215U (en) * 2018-11-27 2019-08-06 无锡机床股份有限公司 A kind of wheel hub Superfinishing machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008272841A (en) * 2007-04-25 2008-11-13 Nsk Ltd Grinding wheel swinging mechanism for superfinishing machine
JP2013173201A (en) * 2012-02-24 2013-09-05 Nsk Ltd Superfinishing device
CN103659567A (en) * 2013-11-25 2014-03-26 李东炬 Ultra-precision machine special for machining nuclear power bearing rings
CN203765439U (en) * 2014-01-21 2014-08-13 濮阳贝英数控机械设备有限公司 Double-row spherical surface superfinishing swing angle automatic adjusting mechanism
CN205465655U (en) * 2016-01-17 2016-08-17 浙江陀曼智造科技有限公司 Super smart quick -witted swing mechanism
CN209207215U (en) * 2018-11-27 2019-08-06 无锡机床股份有限公司 A kind of wheel hub Superfinishing machine

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