CN114102429A - Gear pitch circle fixture positioning tool - Google Patents
Gear pitch circle fixture positioning tool Download PDFInfo
- Publication number
- CN114102429A CN114102429A CN202111269215.XA CN202111269215A CN114102429A CN 114102429 A CN114102429 A CN 114102429A CN 202111269215 A CN202111269215 A CN 202111269215A CN 114102429 A CN114102429 A CN 114102429A
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- China
- Prior art keywords
- disc
- seat
- fixedly connected
- pitch circle
- rotating
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
Abstract
The invention discloses a gear pitch circle fixture positioning tool which comprises a hollow shaft, a push rod, a rotating seat and an air-tight plug-in. This gear pitch circle anchor clamps location frock, during the use, at first assemble and install the location frock, then first outer dish and fixed connection are on the lathe revolving stage, the frock after will assembling is fixed through third outer dish and first outer dish simultaneously, make the hollow shaft insert the lathe revolving stage and with the contact of lathe after the flange this moment, it is fixed with the flange behind hollow shaft and the lathe, then the rotation regulation bolt, adjust the initial position of bulb piece, carry out the work of location central point regulation, make location central point and operation requirement conform, in operation, hollow shaft center is ventilated, this moment gas is through the hollow shaft, the ejector pin, rotate the seat, airtight plug-in components, air guide groove and air guide channel transmit the terminal surface of placing the seat. Then the gear to be detected is taken out, and the gear is placed on the placing seat.
Description
Technical Field
The invention relates to the field of machining, in particular to a gear pitch circle fixture positioning tool.
Background
Gear pitch circle positioning fixture is arranged in gear machining technology on the hole grinding process after quenching, because present gear quality, required precision constantly improve, when the grinding hole, must fix a position with the profile of tooth, consequently, gear pitch circle positioning fixture is indispensable in gear machining.
However, the existing gear pitch circle positioning clamp cannot well position the gear during machining, so that the fixed gear has the eccentric problem.
Disclosure of Invention
The invention aims to provide a gear pitch circle fixture positioning tool to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a gear pitch circle fixture positioning tool comprises a machine tool rear flange and a machine tool rotary table, wherein one side of the machine tool rotary table is fixedly connected with a first outer disc through a bolt, one side of the first outer disc is fixedly connected with a second outer disc through a bolt, the outer side of the second outer disc is provided with a third outer disc, the third outer disc is fixedly connected with the first outer disc through a bolt, a through hole for the bolt to pass through is formed in the second outer disc, one side of the third outer disc is fixedly connected with a placing table through a bolt, the outer side of the placing table is respectively and circumferentially provided with a clamping mechanism and a positioning mechanism, the clamping mechanism and the first positioning mechanism are arranged in a staggered mode, the middle of the first outer disc is provided with a avoidance hole, a guide sleeve is arranged at the position, corresponding to the avoidance hole, the inner side of the third outer disc is provided with a lifting disc, one side of the lifting disc is provided with a rotary disc, one side of the rotary disc is fixedly connected with a rotary seat, one side of the rotary seat is inserted into the third outer disc and is rotatably connected with the third outer disc, the other side of the rotating seat is inserted into the rotating disc and is symmetrically provided with a limiting groove, a rotating bead is arranged in the limiting groove, the other side of the lifting disc is provided with a push rod, one end of the push rod is inserted into the guide sleeve and is in sliding connection with the guide sleeve, the other end of the push rod penetrates through the lifting disc and is inserted into the inner side of the rotating seat, a guide spiral chute is arranged on the push rod corresponding to the rotating bead, part of the rotating bead is inserted into the guide spiral chute, the outer wall of the push rod is fixedly connected with an arc-shaped boss, an arc-shaped groove is arranged on the lifting disc corresponding to the arc-shaped boss, a limiting ring is fixedly sleeved on the outer wall of the push rod, the limiting ring and the arc-shaped boss are respectively arranged on two sides of the lifting disc, the middle part of the placing table is fixedly connected with an airtight plug-in piece, one end of the airtight plug-in is inserted into the rotating seat after penetrating through the placing table and the third outer disc simultaneously, an air guide groove is arranged between the airtight plug-in and is provided with an air guide hole communicated with the air guide groove, the circumference of the placing table is provided with three placing seats, the placing seats are provided with L-shaped air guide channels, one ends of the air guide channels are communicated with the outer wall of the placing seats, the other ends of the air guide channels are communicated with the air guide grooves, the circumference of the placing table is flat through fixedly connected bolts, one side of the flat plate is provided with L-shaped blocking pieces through fixedly connected bolts, a hollow shaft penetrates through the center of a receiving disc behind a machine tool, and one end of the hollow shaft is fixedly connected with an ejector rod after penetrating through a rotary table of the machine tool.
As a further scheme of the invention: the clamping mechanism comprises a first fixed seat, a connecting rod, a clamping head and a hinge piece.
As a still further scheme of the invention: first fixing base passes through bolt and third outer wall fixed connection, and the one end of first fixing base is inserted in the third outer wall, and the connecting rod slides and runs through first fixing base, and the one end of connecting rod is wiped and is inserted in the third outer wall and with lifter plate fixed connection, and the other end of connecting rod stretches out first fixing base and articulates with the chuck, and the articulated elements symmetry is established in the both sides of chuck, and the one end of articulated elements is articulated with the chuck, and the other end of articulated elements is articulated with first fixing base.
As a still further scheme of the invention: the positioning mechanism comprises a second fixing seat, a mounting seat, a ball head jacking piece, an adjusting bolt, a torsion spring and a first limiting pin.
As a still further scheme of the invention: the second fixing base passes through bolt and third outer dish fixed connection, and the one end of second fixing base inserts in the third outer dish, the mount pad activity run through the second fixing base and with first spacer pin fixed connection, the outside of first spacer pin is equipped with the second spacer pin, second spacer pin and rolling disc fixed connection, turn round the spring cover and establish in the outside of mount pad, the one end and the mount pad fixed connection of torsional spring, the other end and the second fixing base fixed connection of torsional spring.
As a still further scheme of the invention: the ball head ejecting piece is arranged at one end of the through hole, the threaded hole is opposite to the ball head ejecting piece, and the adjusting bolt is in threaded connection with the other end of the through hole.
As a still further scheme of the invention: the L-shaped air guide channel comprises a vertical channel and a transverse channel, the reverse ends of the vertical channel and the transverse channel are provided with threaded holes, and the threaded holes are used for sealing the vertical channel and the transverse channel through bolts.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention uses the matching use among a first outer disc, a second outer disc, a third outer disc, a placing table, a clamping mechanism, a positioning mechanism, a avoidance hole, a guide sleeve, a lifting disc, a rotating seat, a limiting groove, a rotating ball, a mandril, a guide spiral chute, an arc boss, a groove, a limiting ring, a placing seat, a first fixed seat, a connecting rod, a chuck, a blocking piece, an articulated piece, a second fixed seat, a mounting seat, a top piece, an adjusting bolt, a torsional spring, a first limiting pin, a flat plate and a second limiting pin to ensure that a fixing mechanism and a clamping mechanism which are arranged on the circumference are linked with each other independently, the hollow shaft drives the lifting disc to control the fixing mechanism to clamp a gear through the mandril, drives the rotating disc to rotate through the rotating seat, and further causes the second limiting pin to deflect, the fixed torsional spring drives the ball head top piece to deflect through the mounting seat to position, and simultaneously adjusts the arrangement of the bolt, initial position to bulb top that can be convenient is adjusted, places the platform simultaneously, places seat, flat board and L shape and keeps off the setting of piece, conveniently carries out initial positioning to the gear and places to make this gear pitch circle anchor clamps location frock can be convenient fix and fix a position the gear, thereby avoid the fixed eccentric problem of gear.
2. According to the invention, through the matching use of the hollow shaft, the ejector rod, the rotating seat, the airtight plug-in piece, the air guide groove and the air guide channel, the airtight detection can be carried out through the ventilation of the hollow shaft, the situation that the gear is not attached to the placing seat is avoided, and meanwhile, the torsion spring drives the ball head top piece to extrude, so that a lateral fine force channel is formed to clamp a workpiece, and the possibility of workpiece deformation is reduced.
Drawings
Fig. 1 is a schematic structural view of a gear pitch circle fixture positioning tool.
FIG. 2 is a sectional view of a gear pitch circle fixture positioning tool.
FIG. 3 is an enlarged view of A in the gear pitch circle fixture positioning tool.
FIG. 4 is an enlarged view of B in the gear pitch circle fixture positioning tooling.
Fig. 5 is a perspective view of a fixing mechanism in a gear pitch circle fixture positioning tool.
Fig. 6 is a perspective view of a positioning mechanism in a gear pitch circle fixture positioning tool.
Fig. 7 is a perspective view of the position of the placing table in the gear pitch circle fixture positioning tool.
FIG. 8 is a perspective view of the position of the rotary plate in the gear pitch circle fixture positioning tool.
FIG. 9 is a perspective view of a first outer disc in a gear pitch circle fixture positioning tool.
FIG. 10 is a perspective view of a second outer disc in the gear pitch circle fixture positioning tool.
Fig. 11 is a perspective view of a lifting plate in a gear pitch circle fixture positioning tool.
Fig. 12 is a perspective view of a push rod in a gear pitch circle fixture positioning tool.
Fig. 13 is a perspective view of a rotary seat in a gear pitch circle fixture positioning tool.
In the figure: 1 machine tool rear flange, 2 machine tool rotating table, 3 first outer disc, 4 second outer disc, 5 third outer disc, 6 placing table, 7 clamping mechanism, 8 positioning mechanism, 9 avoiding hole, 10 guide sleeve, 11 lifting disc, 12 rotating disc, 13 rotating seat, 14 limiting groove, 15 rotating ball, 16 ejector rod, 17 guide spiral sliding groove, 18 arc boss, 19 groove, 20 limiting ring, 21 airtight plug-in, 22 air guide groove, 23 placing seat, 24 air guide channel, 25 first fixing seat, 26 connecting rod, 27 chuck, 28L-shaped stopper, 29 articulated element, 30 second fixing seat, 31 mounting seat, 32 ball head top part, 33 adjusting bolt, 34 torsion spring, 35 first limiting pin, 36 flat plate, 37 second limiting pin and 38 hollow shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 13, in an embodiment of the present invention, a gear pitch circle fixture positioning tool includes a machine tool rear receiving disc 1 and a machine tool rotating table 2, one side of the machine tool rotating table 2 is fixedly connected with a first outer disc 3 through a bolt, one side of the first outer disc 3 is fixedly connected with a second outer disc 4 through a bolt, the outer side of the second outer disc 4 is provided with a third outer disc 5, the third outer disc 5 is fixedly connected with the first outer disc 3 through a bolt, the second outer disc 4 is provided with a through hole for the bolt to pass through, one side of the third outer disc 5 is fixedly connected with a placing table 6 through a bolt, the outer side of the placing table 6 is respectively provided with a clamping mechanism 7 and a positioning mechanism 8 circumferentially, the clamping mechanism 7 and the first positioning mechanism 8 are arranged in a staggered manner, the middle portion of the first outer disc 3 is provided with a avoiding hole 9, a guide sleeve 10 is arranged at a position of the second outer disc 4 corresponding to the avoiding hole 9, and the inner side of the third outer disc 5 is provided with a lifting disc 11, one side of the lifting disc 11 is provided with a rotating disc 12, one side of the rotating disc 12 is fixedly connected with a rotating seat 13, one side of the rotating seat 13 is inserted into the third outer disc 5 and is rotationally connected with the third outer disc 5, the other side of the rotating seat 13 is inserted into the rotating disc 12 and is symmetrically provided with limit grooves 14, the limit grooves 14 are internally provided with rotating beads 15, the other side of the lifting disc 11 is provided with a push rod 16, one end of the push rod 16 is inserted into the guide sleeve 10 and is slidably connected with the guide sleeve 10, the other end of the push rod 16 penetrates through the lifting disc 11 and is inserted into the rotating seat 13, a guide spiral chute 17 is oppositely arranged on the push rod 16 corresponding to the rotating beads 15, part of the rotating beads 15 is inserted into the guide spiral chute 17, the outer wall of the push rod 16 is fixedly connected with an arc-shaped boss 18, the lifting disc 11 is provided with an arc-shaped groove 19 corresponding to the arc-shaped boss 18, the outer wall of the push rod 16 is fixedly sleeved with a limit ring 20, the limit ring 20 and the arc-shaped boss 18 are respectively arranged on two sides of the lifting disc 11, an airtight plug-in 21 is fixedly connected to the middle of the placing table 6, one end of the airtight plug-in 21 penetrates through the placing table 6 and the third outer disc 5 simultaneously and then is inserted into the rotating seat 13, an air guide groove 22 is formed between the airtight plug-in 21 and the placing table 6, an air guide hole communicated with the air guide groove 22 is formed in the airtight plug-in 21, three placing seats 23 are arranged on the circumference of the placing table 6, an L-shaped air guide channel 24 is arranged at the position of each placing seat 23, one end of each air guide channel 24 is communicated with the outer wall of the placing seat 23, the other end of each air guide channel 24 is communicated with the air guide groove 22, a flat plate 36 is fixedly connected to the circumference of the placing table 6 through bolts, an L-shaped blocking piece 28 is fixedly connected to one side of the flat plate 36 through bolts, a hollow shaft 38 penetrates through the center of the receiving disc 1 behind the machine tool, and one end of the hollow shaft 38 penetrates through the machine tool rotating table 2 and then is fixedly connected with the ejector rod 16.
The clamping mechanism 7 comprises a first fixed seat 25, a connecting rod 26, a clamping head 27 and a hinge 29.
The positioning mechanism 8 includes a second fixing seat 30, a mounting seat 31, a ball top 32, an adjusting bolt 33, a torsion spring 34, and a first limit pin 35.
The second fixing seat 30 is fixedly connected with the third outer disc 5 through a bolt, one end of the second fixing seat 30 is inserted into the third outer disc 5, the mounting seat 31 movably penetrates through the second fixing seat 30 and is fixedly connected with the first limiting pin 35, the second limiting pin 37 is arranged on the outer side of the first limiting pin 35, the second limiting pin 37 is fixedly connected with the rotating disc 12, the torsion spring 34 is sleeved on the outer side of the mounting seat 31, one end of the torsion spring 34 is fixedly connected with the mounting seat 31, and the other end of the torsion spring 34 is fixedly connected with the second fixing seat 30.
A through hole is formed in the mounting seat 31, a threaded hole is formed in one side of the through hole, the ball head top piece 32 is arranged at one end of the through hole, the threaded hole is opposite to the ball head top piece 32, and the adjusting bolt 33 is in threaded connection with the other end of the through hole.
The L-shaped air guide channel 24 comprises a vertical channel and a transverse channel, wherein the reverse ends of the vertical channel and the transverse channel are provided with threaded holes, and the threaded holes are used for sealing the vertical channel and the transverse channel through bolts.
The working principle of the invention is as follows:
during the use, at first assemble and install the location frock, then first outer dish 3 and fixed connection are on lathe revolving stage 2, fix the frock after will assembling simultaneously through third outer dish 5 and first outer dish 3, make hollow shaft 38 insert lathe revolving stage 2 and with the contact of lathe rear flange 1 this moment, connect hollow shaft 38 with the lathe power unit outside lathe rear flange 1, it is fixed, then rotatory adjusting bolt 33, adjust the initial position of bulb top 32, carry out the location central point and adjust the work, make the location central point accord with the operation requirement, during operation, hollow shaft 38 center ventilates, gas is transmitted to the terminal surface of placing seat 23 through hollow shaft 38, ejector pin 16, rotation seat 13, airtight plug-in 21, air guide groove 22 and air guide channel 24 this moment. Then the gear to be detected is taken, the gear is placed on the placing seat 23, the gear is placed between the L-shaped blocking pieces 28 at the same time, the gear is preliminarily positioned, the gear shields the port of the air guide channel 24 at the same time, the gear is ensured to be attached to the placing seat 23 through the ventilation quantity, then the power source of the machine tool provides power for the hollow shaft 38, then the hollow shaft 38 drives the ejector rod 16 to slide along the guide sleeve 10, so that the lifting disc 11 is driven to move forwards through the matching of the arc-shaped boss 18 and the groove 19, the lifting disc 11 drives the connecting rod 26 at the moment, the connecting rod 26 drives the chuck 27 to turn over through the matching of the hinge element 29 and the first fixed seat 25, so that the gear is clamped on the placing seat 23 through the chuck 27, in the process, the ejector rod 16 drives the rotating disc 12 to rotate through the rotating seat 13 through the matching of the guide spiral chute 17 and the rotating ball 15, so that the rotating disc 12 drives the second limiting pin 37 to deviate, mount pad 31 rotates under torsional spring 34's effect this moment, second spacer pin 37 is hugged closely all the time to first spacer pin 35 simultaneously, thereby make bulb piece 32 appear deflecting, thereby carry out the centre gripping location to the gear through bulb piece 32, accomplish positioning work, when needs loosen, the lathe power supply drives hollow shaft 38 reverse work this moment, ejector pin 16 contracts, ejector pin 16 drives lifter plate 11 through spacing ring 20 and resets, ejector pin 16 drives rolling disc 12 through the cooperation of direction spiral chute 17 and commentaries on classics pearl 15 and resets simultaneously, thereby make bulb piece 32 reset, thereby the inboard gear that can rotate the seat takes off.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a gear pitch circle anchor clamps location frock, flange (1) and lathe revolving stage (2) behind the lathe, its characterized in that: one side of the machine tool rotating table (2) is fixedly connected with a first outer disc (3) through a bolt, one side of the first outer disc (3) is fixedly connected with a second outer disc (4) through a bolt, the outer side of the second outer disc (4) is provided with a third outer disc (5), the third outer disc (5) is fixedly connected with the first outer disc (3) through a bolt, a through hole for the bolt to pass through is formed in the second outer disc (4), one side of the third outer disc (5) is fixedly connected with a placing table (6) through a bolt, the outer side of the placing table (6) is respectively circumferentially provided with a clamping mechanism (7) and a positioning mechanism (8), the clamping mechanism (7) and the first positioning mechanism (8) are arranged in a staggered mode, the middle portion of the first outer disc (3) is provided with a avoiding hole (9), a guide sleeve (10) is arranged at the position, corresponding to the avoiding hole (9), of the second outer disc (4), and a lifting disc (11) is arranged on the inner side of the third outer disc (5), a rotating disc (12) is arranged on one side of the lifting disc (11), a rotating seat (13) is fixedly connected to one side of the rotating disc (12), one side of the rotating seat (13) is inserted into the third outer disc (5) and is rotationally connected with the third outer disc (5), the other side of the rotating seat (13) is inserted into the rotating disc (12) and is symmetrically provided with limit grooves (14), rotating beads (15) are arranged in the limit grooves (14), an ejector rod (16) is arranged on the other side of the lifting disc (11), one end of the ejector rod (16) is inserted into the guide sleeve (10) and is slidably connected with the guide sleeve (10), the other end of the ejector rod (16) penetrates through the lifting disc (11) and is inserted into the rotating seat (13), a guide spiral chute (17) is oppositely arranged on the ejector rod (16) corresponding to the rotating beads (15), part of the rotating beads (15) is inserted into the guide spiral chute (17), an arc-shaped boss (18) is fixedly connected to the outer wall of the ejector rod (16), an arc-shaped groove (19) is arranged at the position of the lifting disc (11) corresponding to the arc-shaped boss (18), a limiting ring (20) is fixedly sleeved on the outer wall of the ejector rod (16), the limiting ring (20) and the arc-shaped boss (18) are respectively arranged at two sides of the lifting disc (11), an airtight plug-in (21) is fixedly connected to the middle part of the placing table (6), one end of the airtight plug-in (21) penetrates through the placing table (6) and the third outer disc (5) and then is inserted into the rotating seat (13), an air guide groove (22) is arranged between the airtight plug-in (21) and the placing table (6), an air guide hole communicated with the air guide groove (22) is formed in the airtight plug-in (21), three placing seats (23) are arranged on the circumference of the placing table (6), L-shaped air guide channels (24) are arranged at the three placing seats (23), one end of each air guide channel (24) is communicated with the outer wall of the placing seat (23), and the other end of each air guide channel (24) is communicated with the air guide groove (22), the upper circumference of the placing table (6) is fixedly connected with a flat plate (36) through bolts, one side of the flat plate (36) is fixedly connected with an L-shaped stopper (28) through bolts, a hollow shaft (38) penetrates through the center of the machine tool rear flange (1), and one end of the hollow shaft (38) penetrates through the machine tool rotary table (2) and then is fixedly connected with the ejector rod (16).
2. The gear pitch circle fixture positioning tool according to claim 1, characterized in that: the clamping mechanism (7) comprises a first fixed seat (25), a connecting rod (26), a clamping head (27) and a hinge piece (29).
3. The gear pitch circle fixture positioning tool according to claim 2, characterized in that: first fixing base (25) are through bolt and third outer dish (5) fixed connection, the one end of first fixing base (25) is inserted in third outer dish (5), connecting rod (26) slide and run through first fixing base (25), the one end of connecting rod (26) is wiped and is inserted in third outer dish (5) and with lifter plate (11) fixed connection, the other end of connecting rod (26) stretches out first fixing base (25) and is articulated with chuck (27), articulated elements (29) symmetry is established in the both sides of chuck (27), the one end and the chuck (27) of articulated elements (29) are articulated, the other end and the first fixing base (25) of articulated elements (29) are articulated.
4. The gear pitch circle fixture positioning tool according to claim 1, characterized in that: the positioning mechanism (8) comprises a second fixing seat (30), a mounting seat (31), a ball head top piece (32), an adjusting bolt (33), a torsion spring (34) and a first limiting pin (35).
5. The gear pitch circle fixture positioning tool according to claim 4, characterized in that: second fixing base (30) are through bolt and third outer dish (5) fixed connection, the one end of second fixing base (30) inserts in the third outer dish (5), mount pad (31) activity run through second fixing base (30) and with first spacer pin (35) fixed connection, the outside of first spacer pin (35) is equipped with second spacer pin (37), second spacer pin (37) and rolling disc (12) fixed connection, the outside at mount pad (31) is established in torsional spring (34) cover, the one end and the mount pad (31) fixed connection of torsional spring (34), the other end and second fixing base (30) fixed connection of torsional spring (34).
6. The gear pitch circle fixture positioning tool according to claim 4, characterized in that: a through hole is formed in the mounting seat (31), a threaded hole is formed in one side of the through hole, the ball head top piece (32) is arranged at one end of the through hole, the threaded hole is opposite to the ball head top piece (32), and the adjusting bolt (33) is in threaded connection with the other end of the through hole.
7. The gear pitch circle fixture positioning tool according to claim 1, characterized in that: the L-shaped air guide channel (24) comprises a vertical channel and a transverse channel, wherein the reverse ends of the vertical channel and the transverse channel are provided with threaded holes, and the threaded holes are used for sealing the vertical channel and the transverse channel through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111269215.XA CN114102429B (en) | 2021-10-29 | 2021-10-29 | Gear pitch circle fixture positioning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111269215.XA CN114102429B (en) | 2021-10-29 | 2021-10-29 | Gear pitch circle fixture positioning tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114102429A true CN114102429A (en) | 2022-03-01 |
| CN114102429B CN114102429B (en) | 2022-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111269215.XA Active CN114102429B (en) | 2021-10-29 | 2021-10-29 | Gear pitch circle fixture positioning tool |
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| CN (1) | CN114102429B (en) |
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| CN211103640U (en) * | 2020-06-12 | 2020-07-28 | 常州奥旋重型轴承有限公司 | Clamp for machining slewing bearing gear |
| CN214350541U (en) * | 2020-12-31 | 2021-10-08 | 内蒙古北方重工业集团有限公司 | Welding deformation control device for large disc thin-walled workpiece |
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