CN114851072B - Thin-wall cup-shaped fixture for flexible gear honing and honing machine tool - Google Patents

Thin-wall cup-shaped fixture for flexible gear honing and honing machine tool Download PDF

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Publication number
CN114851072B
CN114851072B CN202210780552.3A CN202210780552A CN114851072B CN 114851072 B CN114851072 B CN 114851072B CN 202210780552 A CN202210780552 A CN 202210780552A CN 114851072 B CN114851072 B CN 114851072B
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China
Prior art keywords
flexible gear
mounting seat
hole
base
honing
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CN202210780552.3A
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Chinese (zh)
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CN114851072A (en
Inventor
冯强
王涛
张军厚
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Suzhou Xinneng Precise Machinery Co ltd
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Suzhou Xinneng Precise Machinery Co ltd
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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
    • B24B33/00—Honing machines or devices; Accessories therefor
    • B24B33/10—Accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F19/00—Finishing gear teeth by other tools than those used for manufacturing gear teeth
    • B23F19/05—Honing gear teeth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
    • B23F23/02—Loading, unloading or chucking arrangements for workpieces
    • B23F23/06—Chucking arrangements
    • 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
    • B24B33/00—Honing machines or devices; Accessories therefor
    • B24B33/02—Honing machines or devices; Accessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes
    • 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
    • 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
    • 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

Abstract

The invention relates to a fixture for honing a thin-wall cup-shaped flexible gear and a honing machine tool, wherein the fixture is provided with a clamping mechanism, the clamping mechanism comprises a mounting seat for mounting the flexible gear, a positioning piece, a locking assembly and a rotation stopping piece, and the mounting seat comprises a hollow cylindrical part of the mounting seat and a bottom part of the mounting seat formed by inwards extending from one end part of the cylindrical part of the mounting seat along the circumferential direction of the cylindrical part of the mounting seat; the positioning piece comprises a connecting part and a positioning rod part arranged on the connecting part; when the flexible gear is installed on the installation seat, the flexible gear is located in the cylindrical part of the installation seat, the positioning rod part sequentially penetrates through the bottom of the flexible gear and the bottom of the installation seat after passing through the cylindrical part of the flexible gear, and the bottom of the flexible gear is clamped between the bottom of the installation seat and the connecting part; the locking assembly is used for fixing the positioning rod part and the mounting seat relatively, and the rotation stopping piece is used for preventing the flexible gear from rotating around the axis of the flexible gear. The invention fills the technical blank that the cup-shaped flexible gear cannot be honed in the prior art, and obviously and greatly improves the processing speed of the flexible gear compared with the traditional manual grinding.

Description

Thin-wall cup-shaped fixture for flexible gear honing and honing machine tool
Technical Field
The invention belongs to the technical field of honing processing, and particularly relates to a clamp for honing a thin-wall cup-shaped flexible gear and a honing machine tool.
Background
The harmonic reducer is a novel transmission structure in the gear reducer, and utilizes the flexible gear to generate controllable elastic deformation waves to cause relative staggered teeth between the rigid gear and the flexible gear to transmit power and motion. The flexible gear is generally a thin-wall part, the wall thickness is less than 1.5mm, and the flexible gear is easy to deform in the production and processing process, so that the rejection rate of the flexible gear is extremely high. At present, cup-shaped flexible gears and disk-shaped flexible gears are mainly available in the market.
The thinnest wall thickness of the cup-shaped flexible gear is only about 0.3mm, and currently, the means for finishing the finish machining surface of the workpiece is mainly manual grinding, so that the efficiency is low.
Honing, also known as honing, is the finishing of a finished surface with a whetstone (also called honing bar) mounted on a honing head, wherein the workpiece is mounted in a table or a jig of a honing machine, and the honing head is inserted into a machined hole and driven to rotate by a main shaft of the machine tool and reciprocate axially. Patent CN107914209A discloses a thin wall blind hole part honing anchor clamps, be used for clamping thin wall blind hole part, thin film blind hole part has ramming real part and hollow portion, honing anchor clamps include the support frame, be equipped with the anchor clamps body on the support frame, this body coupling of anchor clamps is on the support frame, the anchor clamps body is including the accommodation space who holds thin wall blind hole part, locate accommodation space's circumference and be located accommodation space's bottom and the ramming first clamping part that the portion of ramming of thin wall blind hole part corresponds contradicts, locate accommodation space's circumference and be located the second clamping part of the corresponding conflict of hollow portion with thin film blind hole part above first clamping part, first clamping part and ramming solid portion rigidity are contradicted, second clamping part and the flexible conflict of hollow portion. Although the second clamping portion is in flexible contact with the hollow portion, the thinnest portion of the flexible gear is about 0.3mm, the flexible gear is still unavoidable and easy to deform by adopting the clamping mode, deformation is easy to occur in the clamping process, deformation is easy to occur in the honing process, and accordingly the rejection rate of the flexible gear is extremely high. Therefore, the conventional clamp for honing is difficult to realize honing and clamping of the cup-shaped flexible gear, and the clamp for honing the cup-shaped flexible gear is still blank at present.
Disclosure of Invention
The invention aims to solve the technical problem of filling the blank of the clamp for honing the cup-shaped flexible gear in the prior art, and provides the clamp for honing the thin-wall cup-shaped flexible gear.
The invention also provides a honing machine tool containing the thin-wall cup-shaped flexible wheel honing clamp.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a flexible gear is anchor clamps for honing, the flexible gear has flexible gear axial lead, the flexible gear includes hollow flexible gear tube-shape portion and follows the circumference of flexible gear tube-shape portion certainly the flexible gear bottom that an end of flexible gear tube-shape portion inwards extended the formation, the flexible gear bottom has first through-hole and follows a plurality of second through-holes that the circumference of first through-hole distributes, anchor clamps include that supporting mechanism and setting are in clamping mechanism on the supporting mechanism, clamping mechanism includes:
the base is provided with an accommodating cavity, and one end of the accommodating cavity is opened;
the installation seat is used for installing the flexible gear, is connected to the base and is at least partially positioned in the accommodating cavity, and comprises a hollow installation seat cylindrical part and an installation seat bottom part formed by inwards extending from one end part of the installation seat cylindrical part along the circumferential direction of the installation seat cylindrical part, wherein the installation seat bottom part is provided with a third through hole;
the positioning piece comprises a connecting part and a positioning rod part arranged on the connecting part;
when the flexible gear is installed on the installation seat, the flexible gear is located in the cylindrical part of the installation seat, the positioning rod part sequentially penetrates through the first through hole and the third through hole after passing through the cylindrical part of the flexible gear, the connecting part is exposed out of the bottom of the flexible gear, and the bottom of the flexible gear is clamped between the bottom of the installation seat and the connecting part;
the clamping mechanism further comprises a locking assembly and a rotation stopping piece, when the flexible gear is installed on the installation seat, the locking assembly is used for fixing the positioning rod part and the installation seat relatively, and the rotation stopping piece is used for preventing the flexible gear from rotating around the axis line of the flexible gear.
According to some embodiments of the invention, the bottom of the mounting seat is further provided with a fourth through hole located laterally to the third through hole, and the rotation stopping member is inserted into the second through hole and the fourth through hole when the flexspline is mounted on the mounting seat.
Furthermore, one end part of the rotation stopping piece is connected with the connecting part, and when the flexible gear is installed on the installation seat, the other end part of the rotation stopping piece penetrates through the second through hole and then is inserted into the fourth through hole.
Further, the fourth through holes are provided with a plurality of fourth through holes, and the plurality of fourth through holes are distributed along the circumferential direction of the third through holes; the connecting portion is provided with a plurality of fifth through holes distributed along the circumferential direction of the positioning rod portion, when the flexible gear is installed on the installation seat, one end portion of the rotation stopping piece is inserted into one of the fifth through holes in an interference mode, and the other end portion of the rotation stopping piece penetrates through one of the second through holes and then is inserted into one of the fourth through holes.
According to some embodiments of the present invention, the outer circumferential surface of the positioning rod portion is provided with an external thread, the locking assembly includes a pressing member movably disposed on the mounting seat and a nut for threaded connection with the positioning rod portion, and when the flexible gear is mounted on the mounting seat, the positioning rod portion further passes through the pressing member and then is threaded connected with the nut.
Furthermore, one end part of the pressing piece is pivotally connected to the bottom of the mounting seat through a pin, when the flexible gear is mounted on the mounting seat, a rotating axis of the pressing piece is parallel to an axis of the flexible gear, and the positioning rod part sequentially penetrates through the first through hole, the third through hole and the pressing piece and then is connected with the nut.
In some preferred and specific embodiments, a first clamping groove is formed in a position, far away from one end of the pressing piece, when the flexible gear is mounted on the mounting seat and the pressing piece rotates around the pin, the positioning rod portion can slide into or slide out of the first clamping groove relative to the pressing piece, when the locking assembly fixes the positioning rod portion and the mounting seat relatively, the positioning rod portion is located in the first clamping groove, the pressing piece abuts against the surface of the bottom of the mounting seat, and the nut abuts against the surface of the pressing piece.
In some preferred and specific embodiments, first limiting parts for limiting the rotation angle of the pressing part are disposed on two opposite sides of the bottom of the mounting seat, and the first limiting parts on the two sides are respectively located on two sides of the pressing part.
According to some embodiments of the present invention, the base is disposed on the supporting mechanism, the base includes a hollow base cylinder and a base bottom extending inward from one end of the base cylinder along a circumferential direction of the base cylinder, the base bottom and the base cylinder together enclose the accommodating cavity, and the base bottom is provided with an oil leakage through hole.
Furthermore, the installation seat further comprises installation seat extending portions formed by extending outwards from two opposite sides of the other end portion of the installation seat cylindrical portion, the installation seat cylindrical portion is inserted into the base cylindrical portion, the bottom portion of the installation seat is located inside the base cylindrical portion, and the installation seat extending portions are abutted against the end face of the other end portion of the base cylindrical portion.
In some preferred and specific embodiments, the mounting seat and the base are detachably connected, clamping pieces are arranged on two opposite sides of the other end of the cylindrical portion of the base, second clamping grooves with the same opening direction are formed in the extending portions of the mounting seat on the two sides, and when the mounting seat and the base are connected, the clamping pieces are clamped in the second clamping grooves.
According to some embodiments of the invention, the supporting mechanism comprises a first bracket and a second bracket which is rotatably and slidably arranged on the first bracket, and the clamping mechanism is arranged on the second bracket;
the first support is provided with first supporting pieces arranged on two opposite sides, the second support comprises a connecting ring, a connecting plate and second supporting pieces, the connecting ring is connected with the two sides of the first supporting pieces in a rotating and sliding mode through a first shaft, the connecting plate is used for installing the clamping mechanism, the second supporting pieces are arranged on two opposite sides of the connecting plate, the connecting ring is connected with the two sides of the second supporting pieces in a rotating and sliding mode through a second shaft, when the clamping mechanism is installed on the connecting plate, the clamping mechanism is located in the connecting ring, and the base is connected to the connecting plate.
Furthermore, the axial lead of the first shaft and the axial lead of the second shaft are perpendicular to each other, the supporting mechanism further comprises a second limiting part for limiting the rotation range of the relative rotation of the connecting ring around the axial lead of the first shaft or the axial lead of the second shaft, and the first supporting part and the second supporting part on both sides are respectively provided with the second limiting part.
In some preferred and specific embodiments, the supporting mechanism further includes a first adjusting member having an end portion capable of abutting against or separating from the connecting ring after passing through the second limiting member, a first gap is provided between the end portion of the first adjusting member and the connecting ring, and the first adjusting member is movably disposed on the second limiting member so that the size of the first gap is adjustable.
In some preferred and specific embodiments, the support mechanism further includes a second adjusting member having an end portion capable of abutting against or separating from the connecting ring after passing through the first support members on both sides and the second support members on both sides, respectively, a second gap is provided between the end portion of the second adjusting member and the connecting ring, and each of the second adjusting members is movably disposed on the first support members on both sides or the second support members on both sides, respectively, so that the size of the second gap is adjustable.
Furthermore, the first support comprises a bottom plate and first support pieces vertically arranged on two opposite sides of the bottom plate, the second support pieces are vertically arranged on the connecting plate, the connecting ring, the connecting plate and the bottom plate are sequentially distributed from top to bottom in the vertical direction, the base is detachably connected with the connecting plate, and the axial lead of the first shaft and the axial lead of the second shaft extend along the horizontal direction respectively.
The second technical scheme adopted by the invention is as follows: a honing machine tool adopts the fixture for honing the flexible wheel.
In the present invention, the flexspline is a thin-walled case, and the wall thickness thereof is usually 1.5mm or less, and is a main component of the harmonic reducer.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the invention relates to a honing fixture designed for a thin-wall cup-shaped flexible gear, which fills the technical blank that the cup-shaped flexible gear cannot be honed in the prior art, and realizes the clamping of the flexible gear in the honing process by redesigning the structure of the fixture, namely by the matching design of a mounting seat, a positioning piece, a rotation stopping piece and a locking assembly.
When the fixture is used for honing the flexible gear, the flexible gear is not easy to deform in the clamping stage, the problem of deformation of an inner hole in the honing process is avoided, the rejection rate of the flexible gear is greatly reduced, and good economic efficiency is obtained.
Drawings
Fig. 1 is a schematic perspective view of a thin-wall cup-shaped fixture for honing a flexspline according to an embodiment of the present invention;
FIG. 2 is a schematic top view of the fixture of FIG. 1;
FIG. 3 isbase:Sub>A schematic sectional view taken along line A-A in FIG. 2;
FIG. 4 is an enlarged schematic view of a three-dimensional structure of a clamping mechanism of the clamp of FIG. 1;
FIG. 5 is an enlarged schematic view of the top view of the clamping mechanism of FIG. 4;
FIG. 6 is an enlarged view of the cross-sectional view along line B-B in FIG. 5;
FIG. 7 is an enlarged view of the cross-sectional structure along line C-C in FIG. 5;
FIG. 8 is an exploded view of the clamping mechanism of the clamp of FIG. 1;
FIG. 9 is an enlarged schematic view of the clamping mechanism of the clamp of FIG. 1 (the base is not shown);
FIG. 10 is an enlarged schematic view of another angular perspective structure of the fixture of FIG. 9 (base not shown);
FIG. 11 is an enlarged perspective view of the base of the fixture of FIG. 1;
FIG. 12 is an enlarged cross-sectional view of the mounting base of the fixture of FIG. 1 (the cross-sectional view is in the direction of C-C in FIG. 5);
FIG. 13 is an enlarged schematic view of the flexible gear;
FIG. 14 isbase:Sub>A schematic cross-sectional view of the flexspline of FIG. 13 (the cross-sectional view is along the direction A-A in FIG. 2);
FIG. 15 is a perspective view of a support mechanism of the clamp of FIG. 1;
FIG. 16 is a top view of the support mechanism of FIG. 15;
FIG. 17 is an enlarged view at D of FIG. 16;
FIG. 18 is a schematic cross-sectional view taken along line E-E of FIG. 16;
FIG. 19 is an enlarged view at F of FIG. 18;
fig. 20 is a schematic structural view of the honing machine;
FIG. 21 is an enlarged view of FIG. 20 at G;
in the figure: 100. a support mechanism; 200. a clamping mechanism; 300. a flexible gear;
1. a base; 1a, a base cylindrical part; 1b, the bottom of the base; 2. a rotation stopping member; 3. a mounting seat; 3a, a mounting seat cylindrical part; 3b, mounting base bottom; 3c, a mounting base extension; 4. a first through hole; 5. a second through hole; 6. a third through hole; 7. a fourth via hole; 8. a positioning member; 8a, a connecting part; 8b, a positioning rod part; 9. a fifth through hole; 10. a sixth through hole; 11. a compression member; 12. a nut; 13. a pin; 14. a first card slot; 15. a first limit piece; 16. an oil leakage through hole; 17. a second card slot; 18. a clamping piece; 19. a base plate; 20. a first support member; 21. a connecting ring; 22. a connecting plate; 23. a second support member; 24. a second limiting member; 25. a first adjusting member; 26. a second adjustment member; 27. a flexible gear cylindrical portion; 28. the bottom of the flexible gear; 29. a notch; 30. a slide rail; 31. a stopper; 32. pressing into blocks; 33. honing the cutter;
m, a first axis; n, a second axis.
Detailed Description
The invention is further described with reference to the following drawings and specific embodiments:
referring to fig. 1 to 19, the fixture for honing the thin-wall cup-shaped flexible wheel is used for clamping the flexible wheel 300 in the honing process of the flexible wheel 300.
Because the flexspline 300 is a thin-walled part, the thickness of the flexspline is usually less than 1.5mm, the thinnest part is even about 0.3mm, and the special structure (see fig. 13 to 14) is added, the existing honing clamp cannot be used for clamping the flexspline 300.
As shown in fig. 13 to 14, the flexspline 300 has a flexspline axial line, and includes a hollow flexspline tubular portion 27 and a flexspline bottom 28 formed by radially extending from one end of the flexspline tubular portion 27 in the circumferential direction of the flexspline tubular portion 27, and the flexspline bottom 28 has a first through hole 4 located in the middle of the flexspline bottom 28 and a plurality of second through holes 5 distributed in the circumferential direction of the first through hole 4.
As shown in fig. 1~3, the clamp includes a support mechanism 100 and a clamping mechanism 200 disposed on the support mechanism 100.
As shown in fig. 4 to 10, the clamping mechanism 200 includes a base 1 having a receiving cavity, a mounting base 3 connected to the base 1 and at least partially located in the receiving cavity, a positioning member 8, a rotation stop member 2, and a locking assembly, wherein one end of the receiving cavity is open.
As shown in fig. 11, the base 1 includes a hollow base cylindrical portion 1a and a base bottom portion 1b formed by radially extending inward from one end of the base cylindrical portion 1a along the circumferential direction of the base cylindrical portion 1a, the base bottom portion 1b and the base cylindrical portion 1a together enclose a containing cavity, an oil leakage through hole 16 is formed in the middle of the base bottom portion 1b, and the oil leakage through hole 16 is designed to facilitate the flow of machining oil during the honing process and to help to reduce the overall weight of the clamp.
As shown in fig. 9 and 12, the mount 3 includes a hollow mount cylindrical portion 3a, a mount bottom portion 3b formed to extend radially inward from one end portion of the mount cylindrical portion 3a in a circumferential direction of the mount cylindrical portion 3a, and a mount extension portion 3c formed to extend outward from opposite sides of the other end portion of the mount cylindrical portion 3a, and the mount bottom portion 3b has a third through hole 6 located in a middle portion and fourth through holes 7 distributed in the circumferential direction of the third through hole 6.
In this example, the positioning member 8 includes a connecting portion 8a and a positioning rod portion 8b disposed on the connecting portion 8a, and a plurality of fifth through holes 9 are distributed on the connecting portion 8a along the circumferential direction of the positioning rod portion 8 b.
When the flexible gear 300 is installed on the installation base 3, the flexible gear 300 is located in the cylindrical portion 3a of the installation base, the positioning rod portion 8b sequentially passes through the first through hole 4 and the third through hole 6 after passing through the cylindrical portion 27 of the flexible gear, the connecting portion 8a contacts with the bottom 28 of the flexible gear and is exposed out of the bottom 28 of the flexible gear, the bottom 28 of the flexible gear further contacts with the bottom 3b of the installation base and the bottom 28 of the flexible gear is clamped between the bottom 3b of the installation base and the connecting portion 8a, one end portion of the rotation stopping member 2 is inserted into the fifth through hole 9 in an interference manner, the other end portion of the rotation stopping member 2 passes through the second through hole 5 and is inserted into the fourth through hole 7, the rotation stopping member 2 is used for preventing the flexible gear 300 from rotating around the axis of the flexible gear, and the locking member is used for relatively fixing the positioning rod portion 8b and the installation base 3. When the flexspline 300 is honed, the honing tool is inserted into the flexspline tubular portion 27 and performs honing processing on the inner wall of the flexspline tubular portion 27.
In this example, the rotation stopper 2 is a rotation stopper pin.
For facilitating the cutting, the inner wall surface of the other end of the cylindrical portion 3a of the mounting seat is in a slope transition. Further, in order to facilitate the pick-and-place of the flexspline 300, notches 29 are opened on opposite sides of the other end portion of the mount cylindrical portion 3a, and at least a part of the flexspline cylindrical portion 27 is exposed to the notches 29 when the flexspline 300 is mounted on the mount 3.
The design of the plurality of fourth through holes 7 and the plurality of fifth through holes 9 is adopted, so that the flexible gear 300 can be positioned and clamped conveniently.
Specifically, the outer peripheral face of the positioning rod portion 8b is provided with an external thread, the locking assembly comprises a pressing piece 11 and a nut 12, the pressing piece 11 is connected to the bottom 3b of the installation seat in a pivoting mode through a pin 13, the nut 12 is used for being in threaded connection with the positioning rod portion 8b, when the flexible gear 300 is installed on the installation seat 3, the axis of rotation of the pressing piece 11 rotating around the pin 13 is parallel to the axis of the flexible gear, and the positioning rod portion 8b sequentially penetrates through the first through hole 4, the third through hole 6 and the pressing piece 11 and then is in threaded connection with the nut 12.
One end of the pressing member 11 is connected with the mounting base 3 through a pin 13, a first clamping groove 14 is formed in a position, far away from the end, of the pressing member 11, the first clamping groove 14 is approximately located in the middle of the pressing member 11, a plurality of sixth through holes 10 are formed in two opposite sides, located on the pressing member 11, of the first clamping groove 14, when the flexspline 300 is mounted on the mounting base 3 and the pressing member 11 rotates around the pin 13, the positioning rod portion 8b can slide into or out of the first clamping groove 14 relative to the pressing member 11, when the locking assembly fixes the positioning rod portion 8b and the mounting base 3 relatively, the positioning rod portion 8b is located in the first clamping groove 14, the pressing member 11 abuts against the surface of the bottom 3b of the mounting base, the nut 12 abuts against the surface of the pressing member 11, first limiting members 15 used for limiting the rotation angle of the pressing member 11 are arranged on two opposite sides of the bottom 3b of the mounting base, the first limiting members 15 on the two sides are respectively located on two sides of the pressing member 11, the first limiting member 15 on one side is arranged close to the pin 13, and the first limiting member 15 on the other side is arranged far away from the pin 13.
The mounting seat 3 and the base 1 are detachably connected, in this example, when the mounting seat 3 is connected with the base 1, the mounting seat cylindrical portion 3a is inserted into the base cylindrical portion 1a, the mounting seat bottom portion 3b is located in the base cylindrical portion 1a, the mounting seat extending portion 3c abuts against the end surface of the other end portion of the base cylindrical portion 1a, the clamping members 18 are arranged on two opposite sides of the other end portion of the base cylindrical portion 1a, the second clamping grooves 17 with the same opening facing are formed in the mounting seat extending portions 3c on the two sides, and when the mounting seat 3 is connected with the base 1, the clamping members 18 are clamped in the second clamping grooves 17, so that the mounting seat 3 is mounted on the base 1, the mounting seat cylindrical portion 3a only needs to be inserted into the base cylindrical portion 1a, and then the mounting seat 3 is rotated to enable the clamping members 18 to relatively slide into the second clamping grooves 17, and the mounting is convenient to mount, and the clamping members 18 adopt screws detachably connected to the base cylindrical portion 1 a.
As shown in fig. 15 to 19, the supporting mechanism 100 includes a first bracket and a second bracket rotatably and slidably disposed on the first bracket, and the clamping mechanism 200 is disposed on the second bracket.
In this example, the first bracket includes a bottom plate 19 and first supporting members 20 vertically disposed on opposite sides of the bottom plate 19, the second bracket includes a connecting ring 21 rotatably and slidably connected to the first supporting members 20 on opposite sides respectively through a first shaft m extending in a horizontal direction, a connecting plate 22 for mounting the fixture 200, and second supporting members 23 vertically disposed on opposite sides of the connecting plate 22, the connecting ring 21 is further rotatably and slidably connected to the second supporting members 23 on opposite sides respectively through a second shaft n extending in the horizontal direction, an axial line of the first shaft m and an axial line of the second shaft n are perpendicular to each other, when the fixture 200 is mounted on the connecting plate 22, the fixture 200 is further located in the connecting ring 21, the base 1 is connected to the connecting plate 22, and an oil leaking through hole 16 is also formed in a position on the connecting plate 22 corresponding to the oil leaking through hole 16 of the base 1, and the oil leaking through hole 16 on the connecting plate 22 is formed to facilitate oil leaking during honing and help to reduce the weight of the connecting plate 22. In this example, the oil leak through hole 16 of the connecting plate 22 is also formed in the bottom plate 19.
In the vertical direction, the connecting ring 21, the connecting plate 22 and the bottom plate 19 are sequentially distributed from top to bottom, and the base 1 of the clamping mechanism 200 is detachably connected to the connecting plate 22 through screws.
In this example, the first shaft m and the second shaft n are respectively fixed with the connecting ring 21, the first supporting members 20 at both sides penetrate and fixedly insert the copper sleeve corresponding to the first shaft m, the second supporting members 23 at both sides penetrate and fixedly insert the copper sleeve corresponding to the second shaft n, the first shaft m and the second shaft n are movably inserted in the copper sleeve, gaps are formed between the first shaft m and the inner wall of the corresponding copper sleeve, and between the second shaft n and the inner wall of the corresponding copper sleeve, the connecting ring 21 is located between the first supporting members 20 at both sides, and the connecting ring 21 is also located between the second supporting members 23 at both sides.
The supporting mechanism further includes second position-limiting members 24 for limiting the rotation range of the connecting ring 21 about the axis of the first shaft m or the axis of the second shaft n, the upper end portions of the first supporting members 20 at two sides and the upper end portions of the second supporting members 23 at two sides are respectively provided with the second position-limiting members 24, each of the second position-limiting members 24 includes a fixing portion connected with the first supporting members 20 at two sides or the second supporting members 23 at two sides and a position-limiting portion having one end connected with the fixing portion and the other end located above the connecting ring 21.
The supporting mechanism further includes first adjusting members 25 having an end portion penetrating through the limiting portion of each second limiting member 24 and capable of abutting against or separating from the connecting ring 21, as shown in fig. 19, a first gap is formed between the end portion of each first adjusting member 25 and the connecting ring 21, and each first adjusting member 25 is movably disposed on each second limiting member 24 so that the size of the first gap is adjustable.
The supporting mechanism further includes second adjusting parts 26, one end of each of which can be abutted to or separated from the connecting ring 21 after passing through the first supporting parts 20 or the second supporting parts 23 on both sides, as shown in fig. 17, a second gap is formed between one end of each of the second adjusting parts 26 and the connecting ring 21, and each of the second adjusting parts 26 is movably disposed on the first supporting parts 20 or the second supporting parts 23 on both sides, so that the size of the second gap is adjustable.
In this example, the first and second adjusting members 25 and 26 are adjusting screws, respectively.
Specifically, the second bracket (including the connecting ring 21, the connecting plate 22, and the second support 23) and the whole clamping mechanism 200 with the flexspline 300 mounted thereon can rotate around the axis of the first shaft m; the clamping mechanism 200 provided with the flexible gear 300 can rotate around the axis of the second shaft n; the second bracket (including the connecting ring 21, the connecting plate 22 and the second support 23) and the whole clamping mechanism 200 provided with the flexible gear 300 can slide along the axial lead direction of the first shaft m; the chuck 200 to which the flexspline 300 is attached is slidable in the axial direction of the second shaft n. In the honing process, the base plate 19 and the first supporting member 20 are relatively fixed on the honing machine, and the clamping mechanism 200 can rotate not only around the axis of the first shaft m, but also around the axis of the second shaft n, and can slide along the axis of the first shaft m and along the axis of the second shaft n, and the clamping mechanism 200 realizes universal floating, so that after the clamping mechanism 200 is provided with the flexspline 300, the flexspline 300 can also universally float, so that when the honing cutter honing the inner hole of the flexspline 300, the axial line of the flexspline can be self-adaptively corrected, the axial line of the flexspline is basically consistent with the axial line of the honing cutter in the honing process, and the problem of inner hole deformation in the honing process of the flexspline 300 is effectively solved.
When the second bracket (including the connecting ring 21, the connecting plate 22 and the second supporting member 23) and the clamping mechanism 200 with the flexible gear 300 mounted thereon integrally rotate around the axis of the first shaft m, the size of the first gap between the corresponding first adjusting member 25 on the first supporting member 20 and the connecting ring 21 limits the rotation amplitude of the whole body around the axis of the first shaft m, that is, the rotation amplitude of the clamping mechanism 200 around the axis of the first shaft m is limited; when the fixture 200 with the flexible gear 300 mounted thereon rotates around the axis of the second shaft n, the corresponding first adjusting member 25 on the second supporting member 23 also moves relatively, and the size of the first gap between the corresponding first adjusting member 25 on the second supporting member 23 and the connecting ring 21 limits the rotation amplitude of the fixture 200 around the axis of the second shaft n.
When the whole of the second bracket (including the connecting ring 21, the connecting plate 22 and the second supporting member 23) and the clamping mechanism 200 with the flexible gear 300 mounted thereon slides along the axial direction of the first shaft m, the sliding distance of the whole sliding along the axial direction of the first shaft m is limited by the size of the second gap between the corresponding second adjusting member 26 on the first supporting member 20 and the connecting ring 21, that is, the sliding distance of the clamping mechanism 200 sliding along the axial direction of the first shaft m is limited; when the fixture 200 with the flexspline 300 mounted thereon slides along the axial line direction of the second shaft n, the corresponding second adjusting member 26 on the second support member 23 also moves relatively, and the size of the second gap between the corresponding second adjusting member 26 on the second support member 23 and the connecting ring 21 limits the sliding distance of the fixture 200 sliding along the axial line direction of the second shaft n.
Therefore, the floating amount of the clamping mechanism 200 can be adjusted by adjusting the size of the first gap between the corresponding first adjusting piece 25 on the first support 20 and the connecting ring 21, adjusting the size of the first gap between the corresponding first adjusting piece 25 on the second support 23 and the connecting ring 21, adjusting the size of the second gap between the corresponding second adjusting piece 26 on the first support 20 and the connecting ring 21, and adjusting the size of the second gap between the corresponding second adjusting piece 26 on the second support 23 and the connecting ring 21.
The specific process of mounting the flexspline 300 on the fixture is as follows:
s1, screwing the screw clamping piece 18 into a threaded hole of the base cylindrical part 1a for standby as shown in figure 11;
s2, pressing the upper end part of the rotation stopping piece 2 into one of fifth through holes 9 on a connecting part 8a of a positioning piece 8 in an interference manner to form a combination, then inserting a positioning rod part 8b into a first through hole 4 on a flexible wheel bottom 28 of a flexible wheel 300, inserting the lower end part of the rotation stopping piece 2 into one of second through holes 5 on the flexible wheel bottom 28 of the flexible wheel 300, then integrally placing the whole into a mounting seat cylindrical part 3a of a mounting seat 3, inserting the positioning rod part 8b into a third through hole 6 on the mounting seat bottom 3b and exposing the mounting seat bottom 3b, inserting the lower end part of the rotation stopping piece 2 into one of fourth through holes 7 on the mounting seat bottom 3b, and then shifting one end part of a pressing piece 11 to enable the pressing piece 11 to rotate around a pin 13 until the pressing piece 11 rotates to a position corresponding to the positioning rod part 8b, wherein the positioning rod part 8b slides into a first clamping groove 14 relative to the pressing piece 11, screwing a nut 12 on the lower end part of the positioning 8b until the nut 12 abuts against the pressing piece 11, the positioning piece 8 and the positioning seat 3 is installed in the mounting seat 3, and the positioning piece 3, and the mounting seat is installed in a fixing seat 10 as shown in a drawing;
s3, the installation seat 3 provided with the flexible gear 300 in the step S2 is placed in the base 1 in the step S1, the extension part 3c of the installation seat is pressed on the end face of the cylindrical part 1a of the base, then the installation seat 3 is rotated clockwise (shown in figure 4) until the clamping piece 18 slides into the second clamping groove 17 on the extension part 3c of the installation seat, the installation seat 3 is limited in the base 1 by the clamping piece 18, the installation of the installation seat 3 on the base 1 is completed, and then the installation of the flexible gear 300 on the clamping mechanism 200 is completed, and as shown in figure 4, the flexible gear 300 is conveniently installed on the clamping mechanism 200;
and S4, mounting the clamping mechanism 200 provided with the flexible gear 300 in the step S3 on the connecting plate 22 of the supporting mechanism 100 through screws, specifically, mounting the base 1 of the clamping mechanism 200 on the connecting plate 22 through screws, and finishing the mounting of the clamping mechanism 200 on the supporting mechanism 100.
In conclusion, through the arrangement of the fixture, the inner hole surface of the flexible gear 300 can be honed, the blank in the prior art is filled, and further through the arrangement of the supporting mechanism, the clamping mechanism 200 can universally float, the flexible gear 300 can universally float in the honing process, the problem of inner hole deformation in the flexible gear 300 honing process is effectively solved, and the floating amount of the clamping mechanism 200 can be effectively adjusted through the arrangement of the first adjusting piece 25 and the second adjusting piece 26.
In addition, when the fixture is used for clamping the flexible gear 300, only the flexible gear bottom 28 is clamped, no clamping acting force is generated on the flexible gear cylindrical part 27, the risk of deformation is generated in the clamping process of the flexible gear 300, universal floating of the flexible gear 300 is achieved through the supporting mechanism 100 in the honing process, and the risk of deformation of an inner hole in the honing process is greatly reduced.
The clamp is clamped on a honing machine, as shown in fig. 20 to 21, the honing machine is a vertical honing machine, the honing machine is provided with two slide rails 30 arranged in parallel and a honing tool 33 vertically arranged above the slide rails 30, a blocking piece 31 is arranged between the two slide rails 30, a pressing block 32 is arranged on the two slide rails 30, the clamp is arranged on the two slide rails 30 in a sliding manner, when the clamp is arranged on the slide rails 30 for honing, a bottom plate 19 of the clamp is arranged on the two slide rails 30 and abuts against the blocking piece 31, the bottom plate 19 is limited between the pressing block 32 and the slide rails 30, and the pressing block 32 is used for preventing the clamp from jumping out of the slide rails 30 in the honing process. During honing, the honing tool 33 extends into the inner hole of the flexible gear 300 from the upper part of the clamp to perform honing.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.

Claims (9)

1. The utility model provides a fixture for honing flexible wheel, flexible wheel has flexible wheel axial lead, flexible wheel includes hollow flexible wheel tube-shape portion and follows the circumference of flexible wheel tube-shape portion certainly a flexible wheel bottom that an end of flexible wheel tube-shape portion inwards extended the formation, flexible wheel bottom has first through-hole and follows a plurality of second through-holes that the circumference of first through-hole distributes, fixture includes that supporting mechanism and setting are in clamping mechanism on the supporting mechanism, its characterized in that, clamping mechanism includes:
the base is provided with an accommodating cavity, and one end of the accommodating cavity is opened;
the installation seat is used for installing the flexible gear, is connected to the base and is at least partially positioned in the accommodating cavity, comprises a hollow installation seat cylindrical part and an installation seat bottom formed by inwards extending from one end part of the installation seat cylindrical part along the circumferential direction of the installation seat cylindrical part, and is provided with a third through hole;
the positioning piece comprises a connecting part and a positioning rod part arranged on the connecting part;
when the flexible gear is installed on the installation seat, the flexible gear is located in the cylindrical part of the installation seat, the positioning rod part sequentially penetrates through the first through hole and the third through hole after passing through the cylindrical part of the flexible gear, the connecting part is exposed out of the bottom of the flexible gear, and the bottom of the flexible gear is clamped between the bottom of the installation seat and the connecting part;
the clamping mechanism further comprises a locking assembly and a rotation stopping piece, when the flexible gear is installed on the installation seat, the locking assembly is used for fixing the positioning rod part and the installation seat relatively, and the rotation stopping piece is used for preventing the flexible gear from rotating around the axis of the flexible gear;
the bottom of the mounting seat is also provided with a fourth through hole positioned at the side of the third through hole, and when the flexible gear is mounted on the mounting seat, the rotation stopping piece is inserted into the second through hole and the fourth through hole; one end of the rotation stopping piece is connected with the connecting part, and when the flexible gear is installed on the installation seat, the other end of the rotation stopping piece penetrates through the second through hole and then is inserted into the fourth through hole; the number of the fourth through holes is multiple, and the fourth through holes are distributed along the circumferential direction of the third through hole; a plurality of fifth through holes are distributed on the connecting part along the circumferential direction of the positioning rod part, when the flexible gear is installed on the installation seat, one end part of the rotation stopping piece is inserted into one fifth through hole in an interference manner, and the other end part of the rotation stopping piece penetrates through one second through hole and then is inserted into one fourth through hole;
the outer peripheral surface of the positioning rod part is provided with an external thread, the locking assembly comprises a pressing part movably arranged on the mounting seat and a nut used for being in threaded connection with the positioning rod part, and when the flexible gear is mounted on the mounting seat, the positioning rod part is also in threaded connection with the nut after penetrating through the pressing part; one end part of the pressing piece is pivotally connected to the bottom of the mounting seat through a pin, when the flexible gear is mounted on the mounting seat, the axis of rotation of the pressing piece is parallel to the axis of the flexible gear, and the positioning rod part sequentially penetrates through the first through hole, the third through hole and the pressing piece and then is connected with the nut;
the base is arranged on the supporting mechanism and comprises a hollow base cylindrical part and a base bottom part formed by extending inwards from one end part of the base cylindrical part along the circumferential direction of the base cylindrical part, the base bottom part and the base cylindrical part jointly enclose the accommodating cavity, and an oil leakage through hole is formed in the base bottom part; the mounting seat further comprises mounting seat extending parts formed by extending outwards from two opposite sides of the other end part of the mounting seat cylindrical part, the mounting seat cylindrical part is inserted into the base cylindrical part, the bottom part of the mounting seat is positioned in the base cylindrical part, and the mounting seat extending parts are pressed against the end face of the other end part of the base cylindrical part;
the mounting seat is detachably connected with the base.
2. The jig for honing a flexspline of claim 1, wherein: the flexible wheel is mounted on the mounting seat, when the pressing piece rotates around the pin, the positioning rod part can slide into or slide out of the first clamping groove relative to the pressing piece, when the locking assembly fixes the positioning rod part and the mounting seat relatively, the positioning rod part is located in the first clamping groove, the pressing piece abuts against the surface of the bottom of the mounting seat, and the nut abuts against the surface of the pressing piece.
3. The jig for honing a flexspline of claim 1, wherein: the relative both sides of mount pad bottom are equipped with and are used for restricting compress tightly a turned angle's first locating part, and both sides first locating part is located respectively compress tightly the both sides of piece.
4. The jig for honing a flexspline of claim 1, wherein: the relative both sides of another tip of base tube-shape portion set up joint spare, both sides set up the second draw-in groove that the opening orientation is the same on the mount pad extension, work as when mount pad and base are connected, joint spare card is established in the second draw-in groove.
5. The flex-spline honing jig of any one of claims 1~4, wherein: the supporting mechanism comprises a first support and a second support which is rotatably and slidably arranged on the first support, and the clamping mechanism is arranged on the second support;
the first support is provided with first supporting pieces arranged on two opposite sides, the second support comprises a connecting ring, a connecting plate and second supporting pieces, the connecting ring is connected with the two sides of the first supporting pieces in a rotating and sliding mode through a first shaft, the connecting plate is used for installing the clamping mechanism, the second supporting pieces are arranged on two opposite sides of the connecting plate, the connecting ring is connected with the two sides of the second supporting pieces in a rotating and sliding mode through a second shaft, when the clamping mechanism is installed on the connecting plate, the clamping mechanism is located in the connecting ring, and the base is connected to the connecting plate.
6. The jig for honing a flexspline of claim 5, wherein: the supporting mechanism further comprises a second limiting part used for limiting the rotation amplitude of the connection ring around the axis of the first shaft or the relative rotation of the axis of the second shaft, and the first supporting part and the second supporting part are arranged on two sides of the second limiting part respectively.
7. The jig for honing a flexspline of claim 6, wherein: the supporting mechanism further comprises a first adjusting piece, one end of the first adjusting piece penetrates through the second limiting piece and then can be abutted to or separated from the connecting ring, a first gap is formed between the one end of the first adjusting piece and the connecting ring, and the first adjusting piece is movably arranged on the second limiting piece so that the size of the first gap can be adjusted; and/or the presence of a gas in the atmosphere,
the supporting mechanism further comprises second adjusting pieces, one end portions of the second adjusting pieces penetrate through the first supporting pieces on two sides and the second supporting pieces on two sides respectively and then can be abutted to or separated from the connecting ring, second gaps are formed between the end portions of the second adjusting pieces and the connecting ring, and the second adjusting pieces are movably arranged on the first supporting pieces on two sides or the second supporting pieces on two sides respectively, so that the size of the second gaps can be adjusted.
8. The jig for honing a flexspline of claim 5, wherein: the first support comprises a bottom plate and two vertical supports, the two opposite sides of the bottom plate are provided with the first support pieces and the two sides, the second support pieces are vertically arranged on the connecting plate, the connecting ring, the connecting plate and the bottom plate are sequentially distributed from top to bottom in the vertical direction, the base is detachably connected with the connecting plate, and the axial lead of the first shaft and the axial lead of the second shaft extend along the horizontal direction respectively.
9. The utility model provides a honing lathe, includes that flexible wheel honing uses anchor clamps which characterized in that: the flex spline honing jig of any one of claims 1~8.
CN202210780552.3A 2022-07-05 2022-07-05 Thin-wall cup-shaped fixture for flexible gear honing and honing machine tool Active CN114851072B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4680894A (en) * 1983-07-25 1987-07-21 Ex-Cell-O Corporation Fixture for honing thin wall gear parts
CN205559722U (en) * 2016-04-13 2016-09-07 珠海市钧兴机电有限公司 Be applied to flexbile gear location structure of harmonic speed reducer machine
CN107914209A (en) * 2017-12-12 2018-04-17 苏州信能精密机械有限公司 A kind of thin-walled blind-hole parts honing fixture
CN207326106U (en) * 2017-09-07 2018-05-08 北京新立机械有限责任公司 Harmonic reducer flexible wheel processing tool
CN111421466A (en) * 2020-05-21 2020-07-17 江苏红业生智能科技有限公司 Honing clamping device of thin-wall type workpiece
CN113369519A (en) * 2021-07-14 2021-09-10 陕西渭河精密传动有限公司 Flexible gear inner hole opening device and clamping method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4680894A (en) * 1983-07-25 1987-07-21 Ex-Cell-O Corporation Fixture for honing thin wall gear parts
CN205559722U (en) * 2016-04-13 2016-09-07 珠海市钧兴机电有限公司 Be applied to flexbile gear location structure of harmonic speed reducer machine
CN207326106U (en) * 2017-09-07 2018-05-08 北京新立机械有限责任公司 Harmonic reducer flexible wheel processing tool
CN107914209A (en) * 2017-12-12 2018-04-17 苏州信能精密机械有限公司 A kind of thin-walled blind-hole parts honing fixture
CN111421466A (en) * 2020-05-21 2020-07-17 江苏红业生智能科技有限公司 Honing clamping device of thin-wall type workpiece
CN113369519A (en) * 2021-07-14 2021-09-10 陕西渭河精密传动有限公司 Flexible gear inner hole opening device and clamping method thereof

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