CN211102636U - Shaft positioning mechanism and clamp spring sleeving machine - Google Patents

Abstract

The utility model relates to the technical field of fastener assembly, and provides a shaft positioning mechanism and a clamp spring sleeving machine, which comprises a sleeving seat, a first clamping arm group and a first arm driving piece, wherein the sleeving seat is provided with a sleeving surface positioned on the top surface of the sleeving seat for the clamp spring to slide, and a sleeving hole for placing the end part of a shaft component is formed on the sleeving surface; the first clamping arm group is positioned above the sleeving seat; the first arm driving part is used for driving the first clamping arm group to clamp the fixed shaft component, and the first arm driving part is connected with the first clamping arm group. Compared with the prior art, the utility model provides an axle positioning mechanism can realize the fixed of shaft member to improved production efficiency height, practiced thrift manufacturing cost.

Description

Shaft positioning mechanism and clamp spring sleeving machine

Technical Field

The utility model belongs to the technical field of the technique of fastener assembly and specifically relates to a shaft positioning mechanism and jump ring suit machine are related to.

Background

Circlips, also called retainer rings or snap rings, are one type of fastener, which are installed in shaft grooves or hole grooves of machines and equipment and play a role in preventing parts on the shaft or hole from moving axially.

At present, for the equipment of jump ring and axle, mainly adopt artifical with the help of like: the clamp spring clamp is used for assembling the bulk incoming materials in a columnar stacked manner. Before the clamp spring is assembled, the shaft is fixed through a special fixed clamp seat, and then the operation is complex and the working efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an axle positioning mechanism and jump ring suit machine to what exist among the solution prior art makes the pincers seat counter shaft component fixed through the manual work, complex operation, technical problem that work efficiency is low.

The utility model provides a pair of shaft positioning mechanism, include:

the sleeving seat is provided with a sleeving surface positioned on the top surface of the sleeving seat so as to allow the clamp spring to slide, and a sleeving hole for placing the end part of the shaft component is formed in the sleeving surface;

the first clamping arm group is positioned above the sleeving seat; and

the first arm driving part is used for driving the first clamping arm group to clamp the fixed shaft component, and the first arm driving part is connected with the first clamping arm group.

Further, the first arm drive comprises a first cylinder and two first parallel jaws disposed on the first cylinder; the first clamping arm group comprises two first clamping arms, and the two first clamping arms correspond to the two first parallel clamping jaws one to one respectively.

Furthermore, a second clamping arm group is arranged between the sleeving seat and the first clamping arm group, and the second clamping arm group comprises two second clamping arms; the shaft positioning mechanism further comprises a second arm driving piece used for driving the two second clamping arms to move relatively, and a guide hole which corresponds to the sleeving hole and is used for the end part of the shaft member to pass through is formed between the two second clamping arms when the two second clamping arms move oppositely.

Further, the guide hole includes guide notches formed at the two second clamp arms, respectively.

Further, each guide notch comprises a first section and a second section which are communicated with each other, and the first section is a gradually tapered radius from the top surface of the second clamping arm to the second section.

Further, the second arm drive comprises a second cylinder and two second parallel jaws arranged on the second cylinder; the two second parallel clamping jaws correspond to the two second clamping arms one by one respectively.

Furthermore, in the direction perpendicular to the top surface of the sleeving seat, a first preset distance is reserved between the second clamping arm group and the first clamping arm group.

Furthermore, in the direction perpendicular to the top surface of the sleeving seat, a second preset distance is reserved between the second clamping arm group and the sleeving seat.

Further, an optical fiber sensor for detecting the arrangement of the shaft member in the sleeving hole is arranged on the sleeving seat.

The utility model provides a pair of jump ring suit machine, including foretell axle positioning mechanism.

Compared with the prior art, the shaft positioning mechanism provided by the utility model comprises a sleeving seat, a first clamping arm group and a first arm driving piece, wherein the sleeving seat is provided with a sleeving surface positioned on the top surface of the sleeving seat, and a sleeving hole for placing the end part of the shaft component is formed on the sleeving surface; the first clamping arm group is positioned above the sleeving seat; the first arm driving part is used for driving the first clamping arm group to clamp the fixed shaft component, so that the shaft component can be fixed, the production efficiency is improved, and the production cost is saved.

Compared with the prior art, the utility model provides a jump ring suit machine adopts foretell axle positioning mechanism, improves work efficiency, has reduced manufacturing cost.

Drawings

Fig. 1 is a schematic perspective view of a circlip sleeving machine provided by an embodiment of the present invention;

fig. 2 is a schematic top view of a circlip sleeving machine provided in the embodiment of the present invention;

fig. 3 is a schematic perspective view of the circlip sleeving machine provided by the embodiment of the present invention when the carrying tray is omitted

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is a schematic perspective view of a sleeving apparatus according to an embodiment of the present invention;

fig. 6 is an exploded view of a nesting device according to an embodiment of the present invention;

FIG. 7 is an enlarged view of portion B of FIG. 6;

fig. 8 is a schematic front view of a sleeving apparatus according to an embodiment of the present invention;

FIG. 9 is an enlarged view of portion C of FIG. 8;

fig. 10 is a schematic cross-sectional view of a sleeving apparatus according to an embodiment of the present invention;

FIG. 11 is an enlarged view of portion D of FIG. 10;

fig. 12 is a schematic perspective view of the pushing member and the snap spring according to the embodiment of the present invention.

Description of the main elements

10: the clamp spring 11: clamping notch

20: shaft member 30: product(s)

31: bottom shell

1000: jump ring suit machine 100: substrate

200: the vibration disk 210: feed channel

300: the supply device 310: carrying disc

320: the mounting bracket 330: translation support

340: the moving platform 350: x-axis drive assembly

360: y-axis drive assembly 351: first lead screw driving part

361: second screw driving member

400: the packaging device 410: supporting frame

420: shaft positioning mechanism 421: package packing seat

422: first clamping arm set 423: first arm driving member

424: second clamp arm set 425: second arm driving member

426: guide hole 4261: guide notch

4262: first stage 4263: second section

4211: the packaging surface 4212: suit hole

4221: first gripper arm 4241: second holding arm

430: snap spring assembling mechanism

431: receiving seat 4311: conveying trough

4312: jacking hole

432: pushing member 4321: assembling part

4322: first portion 4323: the second part

4324: first card pocket 4325: second card socket

433: jacking assembly 4331: jacking component

4332: jacking driving piece 4333: positioning convex part

4334: limiting convex part

434: pushing driving piece

435: the pressing component 4351: lower pressing plate

4352: press-down driving member 4353: lower pressure lever

436: the guide block 437: cover sheet

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It is to be understood that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description is provided for the implementation of the present invention with reference to the specific drawings.

For convenience of description, the terms "front", "back", "left", "right", "up" and "down" used herein are the same as the drawings, but do not limit the structure of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.

As shown in fig. 1 to 12, a preferred embodiment of the present invention is provided.

The present embodiment provides a shaft positioning mechanism 420, which includes:

the sleeve seat 421 is provided with a sleeve surface 4211 positioned on the top surface thereof for the snap spring 10 to slide, and a sleeve hole 4212 for the end part of the shaft component 20 to be inserted is formed on the sleeve surface 4211;

the first clamping arm group 422 is positioned above the sleeving seat 421; and

the first arm driving member 423 is used for driving the first clamping arm set 422 to clamp the fixed shaft member 20, and the first arm driving member 423 is connected with the first clamping arm set 422.

The shaft positioning mechanism 420 can fix the shaft component, so that the production efficiency is improved, and the production cost is saved.

Referring to fig. 1 to 12, the circlip sleeving machine 1000 of the embodiment is used for sleeving the circlip 10 on the product 30 with the shaft member 20. In the present embodiment, the product 30 includes a bottom case 31 and shaft members 20 mounted on the bottom case 31, each of the shaft members 20 has a snap groove (not shown) at a bottom end thereof, and the snap spring 10 is snapped on the snap groove of the shaft member 20. The shaft members 20 are movable relative to the bottom case 31 along the axial direction thereof, the number of the shaft members 20 is sixteen, sixteen shaft members 20 are arranged in two rows and eight columns, each shaft member 20 is sleeved with a spring (not shown), and the bottom end of the spring is abutted against the top surface of the bottom case 31.

Of course, the shaft members 20 may be arranged in other arrangements.

Of course, the snap spring shrink-fit machine 1000 may be used to assemble a single shaft member 20, and the snap spring 10 may be engaged with the single shaft member 20.

Referring to fig. 1 to 4, the circlip sleeving machine 1000 of the embodiment includes a base plate 100, a vibration plate 200, a feeding device 300, and a sleeving device 400. In the present embodiment, the vibratory pan 200, the feeding device 300, and the nesting device 400 are supported on the substrate 100, and the surface of the substrate 100 has a first direction (shown as a direction D1, hereinafter collectively referred to as a first direction D1) and a second direction (shown as a direction D2, hereinafter collectively referred to as a second direction D2) perpendicular to each other.

With continued reference to fig. 1 to 4, the vibrating plate 200 is used for sending out a plurality of snap springs 10 through a feeding channel 210, in the embodiment, the snap springs 10 are shaped as, but not limited to, C, and have a locking notch 11 for locking on the shaft member 20 to limit the shaft member 20 to be separated from the bottom shell 31. It should be noted that, a batch of the snap springs 10 are put into the vibration plate 200, and the snap springs 10 are sequentially fed out from the feeding passage 210 one by the vibration of the vibration plate 200, and each of the snap springs 10 entering the feeding passage 210 has the engaging notch 11 arranged toward the shaft positioning mechanism along a direction parallel to the first direction D1.

Of course, the spring may be restricted from being disengaged from the shaft member 20 after being assembled with the single shaft member 20.

Referring to fig. 1 to 4, the feeding device 300 includes a tray 310 for placing the products 30, in this embodiment, the tray 310 is located above the casing device 400, the tray 310 has a loading slot for placing the products 30, the loading slot extends through the top and bottom ends of the tray 310, and it should be noted that the tray 310 can be replaced according to the size and specification of the products 30, so as to adapt to trays 310 with different sizes and specifications.

Referring to fig. 1 to 4, the feeding device 300 further includes a mounting bracket 320, a translation bracket 330 slidably disposed on the mounting bracket 320, a moving platform 340 slidably disposed on the translation bracket 330, an X-axis driving assembly 350 for moving the moving platform 340, and a Y-axis driving assembly 360 for moving the translation bracket 330, and the boat 310 is supported on the moving platform 340. In this embodiment, the carrier plate 310 is detachably connected to the moving platform 340, the mounting bracket 320 is fixedly supported on the substrate 100, the X-axis driving assembly 350 includes a first lead screw disposed on the translation bracket 330, a first nut seat screwed on the first lead screw, and a first lead screw driving member 351 for rotating the first lead screw, the moving platform 340 is fixedly connected to the first nut seat, the first lead screw extends along a direction parallel to the first direction D1, the first lead screw driving member 351 is, but not limited to, a motor, and the moving platform 340 is driven by the first lead screw driving member 351 to drive the carrier plate 310 to move along a direction parallel to the first direction D1, so as to achieve the forward and backward movement of the carrier plate 310. The Y-axis driving assembly 360 includes a second lead screw disposed on the mounting bracket 320, a second nut seat screwed on the second lead screw, and a second lead screw driving member 361 for driving the second lead screw to rotate, the translating bracket 330 is connected and fixed with the second nut seat, and under the driving of the second lead screw driving member 361, the translating bracket 330 drives the moving platform 340 and the carrying tray 310 to move in a direction parallel to the second direction D2, so as to realize the left-right movement of the carrying tray 310. It should be noted that, through the X-axis driving assembly 350 and the Y-axis driving assembly 360, the movement of the product 30 in the first direction D1 and the second direction D2 can be realized, and further, the automatic feeding of the shaft member 20 can be realized, thereby improving the production efficiency.

Referring to fig. 4 to 10, the sleeving apparatus 400 includes a support bracket 410, a shaft positioning mechanism 420 for fixing the shaft member 20 on the carrier plate 310, and a clamp spring assembling mechanism 430.

With continued reference to fig. 4 to 12, the circlip assembling mechanism 430 is configured to receive the circlip 10 sent from the feeding channel 210 and to clamp the circlip 10 to the shaft member 20 fixed by the shaft positioning mechanism 420. In this embodiment, the clamp spring assembling mechanism 430 includes a material receiving seat 431, a material pushing member 432, a jacking assembly 433, and a material pushing driving member 434, and both the material receiving seat 431 and the material pushing driving member 434 are supported on the supporting frame 410. The receiving seat 431 is provided with a conveying groove 4311 which is positioned on the top surface of the receiving seat and is used for moving the clamp spring 10, and the groove depth of the conveying groove 4311 is matched with the thickness of the clamp spring 10; the pushing member 432 is slidably arranged on the top surface of the material receiving seat 431, and the pushing member 432 has a fitting part 4321 located at an end thereof and used for clamping the clamp spring 10 to the clamping groove of the shaft member 20; the jacking component 433 is used for jacking the clamp spring 10 in the conveying groove 4311 into the assembling part 4321; the pushing member 432 is moved by a pushing driving member 434, which is, but not limited to, an air cylinder, and is connected and fixed to the pushing member 432. It should be noted that the conveying groove 4311 is abutted to the outlet of the feeding channel 210 for the snap spring 10 to slide in, and the direction of the snap gap 11 of the snap spring 10 in the conveying groove 4311 and the moving direction are the same as those in the feeding channel 210, when the snap spring 10 reaches the set position, the jacking component 433 jacks the snap spring 10 upwards away from the conveying groove 4311, and then the pushing driving component 434 drives the pushing member 432 to jack the snap spring 10 from back to front (wherein, the direction of the snap gap 11 is towards the front).

Referring to fig. 4 to 12, in the present embodiment, the material receiving seat 431 has a lifting hole 4312 located at the bottom surface of the conveying trough 4311, the lifting assembly 433 includes a lifting member 4331 slidably disposed in the lifting hole 4312 and a lifting driving member 4332 for lifting the lifting member 4331, the lifting driving member 4332 is supported on the supporting frame 410, and the lifting driving member 4332 is, but not limited to, an air cylinder. When the jacking member 4331 is at the lowest position, the top surface thereof is flush (i.e., on the same plane) with the bottom surface of the conveying groove 4311; when the jacking member 4331 is at the highest position, the top surface of the jacking member 4331 is flush with the top surface of the material receiving seat 431, the set position is located on the top surface of the jacking member 4331, the snap spring 10 in the conveying groove 4311 slides onto the top surface of the jacking member 4331, the jacking member 4331 is driven to ascend through the jacking driving member 4332, the snap spring 10 is jacked onto the plane where the top surface of the material receiving seat 431 is located, and then the material pushing member 432 pushes the snap spring 10. Particularly, the pushing surface (i.e., the plane where the top surface of the material receiving seat 431 is located) and the conveying surface (i.e., the plane where the bottom surface of the conveying groove 4311 is located) are staggered in height, so that the pushing member 432 does not interfere with other snap springs 10 when pushing the snap springs 10, and the assembly effect of the snap springs 10 is ensured.

Specifically, a positioning protrusion 4333 is convexly formed on the top surface of the jacking member 4331, and the positioning protrusion 4333 has a positioning wall for positioning the clamp spring 10. The latch spring 10 moved to the top surface of the jacking member 4331 stops moving after contacting the positioning wall of the positioning projection 4333, thereby positioning the position of the latch spring 10. An optical fiber sensor can be disposed on the material receiving seat 431 to detect whether the top surface of the jacking member 4331 has the clamp spring 10.

As a further optimization, the jacking member 4331 has a limiting protrusion 4334 at the bottom thereof to cooperate with the bottom surface of the material receiving seat 431 to limit the movement of the jacking member 4331 during jacking, so as to prevent the jacking member 4331 from colliding with the material pushing member 432 due to an excessively large lifting stroke, thereby further ensuring the safety of the mechanism.

As can be seen from fig. 11 and 12, in the present embodiment, the fitting portion 4321 includes a first portion 4322 and a second portion 4323 connected to each other, the first portion 4322 has a first ferrule port 4324 for being fitted on the shaft member 20, and the second portion 4323 has a second ferrule port 4325 into which the snap spring 10 is inserted and which communicates with the first ferrule port 4324. The second part 4323 is slidably disposed on the top surface of the material receiving seat 431, and the thickness of the second part 4323 is substantially the same as that of the circlip 10.

Specifically, the first ferrule 4324 has a shape and diameter matching that of the shaft member 20, which has a semi-circular cross-section. The width of the second portion 4323 matches the outer diameter of the snap spring 10, and the second snap ring opening 4325 has a V-shaped cross section, it can be understood that the second portion 4323 has a width matching the outer diameter of the snap spring 10, so that when the snap spring 10 abuts against the positioning wall of the positioning protrusion 4333 at the above-mentioned set position, and the lifting member 4331 is lifted to the highest position, the assembling portion 4321 moves toward the shaft member 20, and during the movement, the side wall of the second portion 4323 abuts against the positioning wall, the bottom surface of the second portion 4323 abuts against the top surface of the lifting member 4331, and the snap spring 10 is held in the second snap ring opening 4325.

As shown in fig. 4, 6 and 9, the material receiving seat 431 is provided with a pressing assembly 435 for limiting the movement of the clamp spring 10 in the conveying groove 4311. In this embodiment, the pressing assembly 435 includes a lower pressing plate 4351 disposed on the receiving seat 431 in a liftable manner and a lower pressing driving member 4352 for lifting the lower pressing plate 4351, the lower pressing plate 4351 is provided with a lower pressing rod 4353 for pressing the snap spring 10, the lower pressing driving member 4352 is, but not limited to, an air cylinder, and it is easily understood that, after the lifting member 4331 slides into the snap spring 10, the lower pressing driving member 4352 presses the lower pressing rod 4353 down to the snap spring 10 located behind the snap spring 10 (i.e. behind the snap spring 10 in the moving direction) to prevent the snap spring 10 from being fed.

As can be seen from fig. 4, 6 and 9, the material receiving seat 431 is provided with a guide block 436 for guiding the pushing member 432 to move, the guide block 436 is mounted on the material receiving seat 431 by any existing fixing method such as screws and welding, and the guide hole is provided with a hole for the pushing member 432 to pass through, so that the moving stability of the pushing member 432 is ensured, and the clamping and assembling effect is improved.

As can be seen from fig. 4, 6, and 9, the material receiving seat 431 is connected with a cover plate 437 for preventing the snap springs 10 from sliding out of the conveying grooves 4311 in the thickness direction of the snap springs 10, the cover plate 437 is mounted on the material receiving seat 431 by any existing fixing method such as screws and welding, and covers the conveying grooves 4311, so that the snap springs 10 can be placed to be separated from the conveying grooves 4311, stacking among the snap springs 10 can be avoided, and the ordered arrangement of the snap springs 10 is ensured.

Referring to fig. 4 to 12, the shaft positioning mechanism 420 includes a sleeve seat 421, a first clamping arm set 422 and a first arm driving member 423, the sleeve seat 421 has a sleeve surface 4211 on a top surface thereof for the snap spring 10 to slide, and the sleeve surface 4211 is formed with a sleeve hole 4212 for the end of the shaft member 20 to be inserted into; the first clamping arm set 422 is located above the nesting seat 421; the first arm driving member 423 is used for driving the first clamping arm set 422 to clamp the fixed shaft member 20, and the first arm driving member 423 is connected with the first clamping arm set 422. It should be noted that the top surface of the material receiving seat 431, the top surface of the set seat 421 (i.e., the set surface 4211), and the top surface of the lifting member 4331 at the lifting position (i.e., the highest lifting position) are all on the same plane.

In this embodiment, the nesting seat 421 and the first arm driving member 423 are both fixedly mounted on the supporting frame 410, the first arm driving member 423 is, but not limited to, a flat-type finger clamping cylinder, and the first arm driving member 423 includes a first cylinder body and two first parallel clamping jaws disposed on the first cylinder body; the first clamping arm group 422 includes two first clamping arms 4221, the two first clamping arms 4221 correspond to the two first parallel jaws one by one, the first clamping arms 4221 are fixedly mounted on the corresponding first parallel jaws, a hole corresponding to the shaft member 20 is formed on the inner side (the side facing the other first clamping arm 4221) of each first clamping arm 4221, and the shape and the diameter of the hole of the first clamping arm 4221 are matched with those of the shaft member 20. It is easy to understand that after the product 30 on the carrier plate 310 moves to above the nesting seat 421, the shaft member 20 corresponding to the nesting hole 4212 is pressed down, so that the bottom end of the shaft member 20 is inserted into the nesting hole 4212, and the first arm driving member 423 drives the two first clamping arms 4221 to move towards each other (i.e. the two clamping arms move towards each other), thereby clamping the fixed shaft member 20.

In yet another embodiment, the first arm actuator 423 is, but is not limited to, a Y-clamp finger cylinder.

Referring to fig. 4 to 12, in the present embodiment, a second clamping arm group 424 is disposed between the nesting seat 421 and the first clamping arm group 422, and the second clamping arm group 424 has two second clamping arms 4241; the shaft positioning mechanism 420 further includes a second arm driver 425 for driving the two second clamp arms 4241 to move relatively, and a guide hole 426 corresponding to the sheathing hole 4212 is formed between the two second clamp arms 4241 when they move toward each other, and an end of the shaft member 20 passes through the guide hole. The second arm actuator 425 is, but not limited to, a flat-type gripper finger cylinder, the second arm actuator 425 comprising a second cylinder and two second parallel gripper jaws disposed on the second cylinder; the two second parallel clamping jaws correspond to the two second clamping arms 4241 one by one respectively, and the second clamping arms 4241 are fixedly installed on the corresponding second parallel clamping jaws. It should be noted that, since the bottom end of the shaft member 20 is at a certain height from the seating surface 4211 before being depressed, the shaft member 20 is likely to be unable to smoothly slide into the seating hole 4212 on the seating surface 4211 due to radial displacement deviation of the shaft member 20 during the depression, and the guide hole 426 is formed before the depression of the shaft member 20 by the second clamp arm 4241, so that the shaft member 20 can be smoothly slid into the seating hole 4212 by the guide of the guide hole 426. It should be noted that after the first clamping arm 4221 clamps and fixes the shaft member 20, the second clamping arm 4241 moves back, and the pushing member 432 moves toward the shaft member 20 between the two second clamping arms 4241.

In yet another embodiment, the second arm actuator 425 is, but is not limited to, a Y-clamp finger cylinder.

Referring to fig. 4 to 12, in the present embodiment, the guide holes 426 include guide notches 4261 respectively formed at the two second gripper arms 4241, and the two guide notches 4261 are arranged in mirror symmetry, that is, when the two second gripper arms 4241 are moved toward each other, the guide notches 4261 on the second gripper arms 4241 form the guide holes 426 corresponding to the sheathing holes 4212 to guide the movement of the shaft member 20 when it is moved downward.

In yet another embodiment, a guide notch 4261 may be provided on only one of the second gripper arms 4241.

Referring to fig. 6, 7 and 11, in the present embodiment, each guide indentation 4261 comprises a first segment 4262 and a second segment 4263 in communication with each other, the first segment 4262 having a gradually tapering radius from a top surface of the second gripper arm 4241 to the second segment 4263. The first section 4262 is shaped like a semi-cone (or semi-trumpet) with a large top and a small bottom, the second section 4263 is semi-cylindrical, and the radius of the second section 4263 is matched with the radius of the bottom end of the first section 4262.

In yet another embodiment, the guide indentation 4261 is semi-conical with a large top and a small bottom.

As can be seen from fig. 11, a first predetermined distance is left between the second clamping arm set 424 and the first clamping arm set 422 in a direction perpendicular to the top surface of the nesting seat 421. It will be readily appreciated that the first predetermined spacing is provided to prevent the second set of clamping arms 424 and the first set of clamping arms 422 from interfering with each other during movement.

With reference to fig. 11, a second predetermined distance is left between the second clamping arm 424 and the nesting base 421 in a direction perpendicular to the top surface of the nesting base 421. Similarly, the second predetermined distance is set to prevent the second clamping arm 424 from interfering with the socket 421 during movement.

In the present embodiment, the nest 421 is provided with an optical fiber sensor for detecting the insertion of the shaft member 20 into the nest hole 4212.

The method for fitting the circlip 10 and the shaft member 20 according to this embodiment will be described in detail with reference to fig. 1 to 12:

the method for sleeving the snap spring 10 and the shaft member 20 in the embodiment adopts the snap spring sleeving machine 1000, which comprises the following steps:

placing the products 30 on the carrier plate 310, and moving the shaft members 20 in the products 30 one by one to the upper part of the nesting seats 421 of the shaft positioning mechanism 420 through the carrier plate 310;

a guide hole 426 corresponding to the sheathing hole 4212 of the sheathing seat 421 is formed through the second clamping arm group 424 of the shaft positioning mechanism 420, the shaft member 20 corresponding to the sheathing hole 4212 is pressed down, the bottom end of the shaft member 20 passes through the guide hole 426 and then slides into the sheathing hole 4212, and meanwhile, a spring sheathed on the shaft member 20 is compressed between the shaft member 20 and the top surface of the bottom shell 31;

the first clamping arm set 422 of the shaft positioning mechanism 420 clamps the fixed shaft member 20, the second clamping arm set 424 retreats from the shaft member 20 after the first clamping arm set 422 clamps the fixed shaft member 20, and the clamping spring 10 is clamped on the shaft member 20 by the pushing member 432 of the clamping spring assembling mechanism 430; the first clamping arm set 422 loosens the clamping shaft member 20, enables the shaft member 20 to move upwards by means of the elasticity of the spring, and keeps on the bottom shell 31 under the limit of the snap spring 10, thereby realizing the assembly of the shaft member 20 and the snap spring 10;

the next shaft member 20 is moved to a position above the sleeve hole 4212 by the driving of the X-axis driving assembly 350 and/or the Y-axis driving assembly 360, and the above steps are repeated.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims (10)

1. A shaft positioning mechanism, comprising:

the sleeving seat is provided with a sleeving surface positioned on the top surface of the sleeving seat so as to allow the clamp spring to slide, and a sleeving hole for placing the end part of the shaft component is formed in the sleeving surface;

the first clamping arm group is positioned above the sleeving seat; and

the first arm driving part is used for driving the first clamping arm group to clamp the fixed shaft component, and the first arm driving part is connected with the first clamping arm group.

2. The shaft positioning mechanism of claim 1, wherein the first arm drive includes a first cylinder and two first parallel jaws disposed on the first cylinder; the first clamping arm group comprises two first clamping arms, and the two first clamping arms correspond to the two first parallel clamping jaws one to one respectively.

3. The shaft positioning mechanism of claim 1, wherein a second clamping arm set is disposed between the nest and the first clamping arm set, the second clamping arm set comprising two second clamping arms; the shaft positioning mechanism further comprises a second arm driving piece used for driving the two second clamping arms to move relatively, and a guide hole which corresponds to the sleeving hole and is used for the end part of the shaft member to pass through is formed between the two second clamping arms when the two second clamping arms move oppositely.

4. The shaft positioning mechanism according to claim 3, wherein the guide hole includes guide notches formed in the two second clamp arms, respectively.

5. The shaft positioning mechanism of claim 4, wherein each of the guide notches includes first and second segments in communication with each other, the first segment having a gradually tapering radius from a top surface of the second clamp arm to the second segment.

6. The shaft positioning mechanism of claim 3, wherein the second arm drive includes a second cylinder and two second parallel jaws disposed on the second cylinder; the two second parallel clamping jaws correspond to the two second clamping arms one by one respectively.

7. The shaft positioning mechanism of claim 3, wherein the second set of clamping arms is spaced from the first set of clamping arms by a first predetermined distance in a direction perpendicular to the top surface of the nest.

8. The axle positioning mechanism of claim 3, wherein a second predetermined distance is left between the second set of clamping arms and the nest in a direction perpendicular to the top surface of the nest.

9. The shaft positioning mechanism of claim 1, wherein the nest is provided with a fiber optic sensor for detecting the seating of the shaft member in the nest hole.

10. A circlip fitting machine comprising a shaft positioning mechanism as claimed in any one of claims 1 to 9.

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