CN216541779U - Clamp spring press-fitting jig - Google Patents

Abstract

The utility model relates to a clamp spring press-mounting jig which comprises a base, a lower die set, an upper die set and a middle plate positioned between the lower die set and the upper die set, wherein the lower die set is provided with a lower die set; the lower type module is including the first push rod that is fixed in the base, the second push rod of first push rod periphery is located to the cover and connects in the locating piece of second push rod periphery, the jump ring is placed in the top surface of second push rod and is located the inboard of locating piece, the second push rod is including the first guide face of locating the top periphery, jump ring pressure equipment tool is including the first guide piece that is fixed in the intermediate lamella, first guide piece is including locating the second guide face of bottom inner periphery, first guide face is on a parallel with the second guide face, the jump ring is along the second guide face, in order to remove the top surface to the first push rod from the top surface of second push rod. The clamp spring has the pre-expanding/pre-tightening function in the press mounting process, the whole press mounting process is more stable, the efficiency is high, and the press mounting quality of the clamp spring is ensured.

Description

Clamp spring press-fitting jig

[ technical field ] A method for producing a semiconductor device

The utility model relates to a clamp spring press-fitting jig, in particular to a clamp spring press-fitting jig for mounting a clamp spring to a workpiece.

[ background of the utility model ]

The clamp spring is a common mechanical element, belongs to one type of fastener, and is widely applied to the product design of an electric tool; the clamp spring can be divided into an outer clamp spring pressing-in mode and an inner clamp spring pressing-in mode according to different installation positions, namely the clamp spring is installed in an outer hole of a workpiece or an inner hole of the workpiece.

Regarding the pressing-in of the outer snap spring, when the direct-current electric hand drill product is produced and assembled at present, the bearing and the snap spring on the output shaft are pressed on the excircle of the output shaft together; the principle of jump ring impressing is: the clamp spring is placed on a tapered guide tool, and is pressed into the output shaft under the action of the taper through the tool upper-shaped clamp spring. According to the technical scheme, the size of the molded hole on the jig is always kept unchanged in the process that the clamp spring is changed from the initial tightening state to the spreading state, the clamp spring is easily clamped into the molded hole on the tool in the initial tightening state, and the clamp spring is easily damaged and the production efficiency is influenced.

About impressing of interior jump ring, when producing the equipment direct current electric hammer product at present, flat jump ring of equipment and interior jump ring on the cylinder, the current situation is that two sets of frocks accomplish the equipment: pressing an inner snap spring and a product part into an inner hole of a cylinder; and secondly, pressing the clutch disc, the gear, the spring, the flat pad and the flat clamp spring outside the cylinder. The existing assembly mode has the defects of large number of tools and high cost, workers need to take and place products among the tools, and the two tools are single-pressed, so that the production efficiency is low; and because the difference of interior jump ring manufacturing, current frock is tight through two cylinders and is made its mode of crimpleing and impressing unstable again, and interior jump ring is because the not in-place card of crimpleing leads to interior jump ring to get into the frock in, fragile frock.

In view of this, it is necessary to provide an improved clamp spring press-fitting jig to overcome the defects in the prior art.

[ Utility model ] content

Aiming at the defects of the prior art, the utility model aims to provide a clamp spring press-fitting jig which is stable in press-fitting and high in efficiency.

The utility model solves the problems of the prior art by adopting the following technical scheme: a clamp spring press-mounting jig is suitable for mounting a clamp spring into a mounting groove of a workpiece, and comprises a base, a lower die set, an upper die set and a middle plate, wherein the base is positioned at the bottom of the clamp spring press-mounting jig; the lower die set is including being fixed in the first push rod of base, the cover is located the second push rod of first push rod periphery and connect in the locating piece of second push rod periphery, the jump ring place in the top surface of second push rod and be located the inboard of locating piece, the second push rod is including locating the first guide face of top periphery, jump ring pressure equipment tool is including being fixed in the first guide of intermediate lamella, first guide is including locating the second guide face of bottom periphery, first guide face is on a parallel with the second guide face, the jump ring along the second guide face, in order to follow the top surface of second push rod removes to the top surface of first push rod.

The further improvement scheme is as follows: the second push rod comprises a supporting part protruding outwards from the periphery of the bottom, the upper end face of the positioning block abuts against the lower end face of the first guide part, and the lower end face of the positioning block abuts against the upper end face of the supporting part.

The further improvement scheme is as follows: the locating piece includes from the inside sunken recess of bottom surface, accept in first spring in the recess and be fixed in the support piece of bearing, first spring cover is located the periphery of support piece, the one end butt of first spring is in the recess, the other end butt in the up end of bearing.

The further improvement scheme is as follows: the positioning block comprises a first pin penetrating through the side wall, the second push rod comprises a first sliding groove extending along the vertical direction, and the first pin protrudes into the first sliding groove and moves up and down along the first sliding groove.

The further improvement scheme is as follows: the second push rod comprises a second pin penetrating through the supporting part, the first push rod comprises a second sliding groove extending along the vertical direction, and the second pin protrudes into the second sliding groove and moves up and down along the second sliding groove.

The further improvement scheme is as follows: the lower die set comprises a second spring sleeved on the periphery of the first push rod, the upper end of the second spring abuts against the lower end of the supporting part, and the lower end of the second spring is supported on the first push rod.

The utility model can also adopt the following technical scheme for solving the problems in the prior art: a clamp spring press-fitting jig is suitable for installing a clamp spring into an installation groove of a workpiece, and comprises a movable seat arranged at the top, an upper die set arranged on the movable seat, and a lower die set arranged on the lower side of the upper die set, wherein the workpiece is arranged on the lower die set, and the installation groove is formed in the outer wall of the workpiece; the upper die assembly comprises a third push rod fixed on the moving seat and a fourth push rod arranged on the inner side of the third push rod, the clamp spring press-fitting jig is arranged on a second guide piece on the upper end of the workpiece in a sleeved mode, the clamp spring is arranged on the periphery of the second guide piece, the second guide piece comprises a third guide face arranged on the periphery of the top, the fourth push rod comprises a fourth guide face arranged on the inner periphery of the bottom, the fourth guide face is parallel to the third guide face, and the clamp spring is arranged along the third guide face and moves to the bottom face of the third push rod from the bottom face of the fourth push rod.

The further improvement scheme is as follows: the upper die set comprises a third spring sleeved on the periphery of the fourth push rod, the third spring is located on the inner side of the third push rod, the upper end of the third spring is supported on the movable seat, and the lower end of the third spring is abutted to the fourth push rod.

The further improvement scheme is as follows: the fourth push rod includes a moving groove depressed inward from a bottom surface, the moving groove having a shape conforming to the shape of the second guide, and the fourth guide surface is formed on an inner peripheral wall of the moving groove.

The further improvement scheme is as follows: the clamp spring press-fitting jig comprises a base arranged at the bottom and moving guide rails vertically arranged on two sides of the base, and the moving base moves downwards along the moving guide rails to drive the upper die set to move downwards so as to drive the clamp spring to move into the mounting groove from the second guide piece.

Compared with the prior art, the utility model has the following beneficial effects: when the clamp spring is installed in the installation groove of the inner wall of the workpiece, the top outer periphery of the second push rod is provided with a first guide surface, the bottom inner periphery of the first guide piece is provided with a second guide surface, the first guide surface is parallel to the second guide surface, the clamp spring moves along the second guide surface from the top surface of the second push rod to the top surface of the first push rod, and then the clamp spring is pushed into the installation groove through the first push rod; when installing the mounting groove of jump ring to the work piece outer wall, the bottom of fourth push rod is interior to be set up the fourth guide face, the top periphery of second guide piece sets up the third guide face, the fourth guide face is on a parallel with the third guide face, the jump ring is along the third guide face, the bottom surface from the fourth push rod moves to the bottom surface of third push rod, again via the third push rod with jump ring propelling movement to the mounting groove in, above-mentioned structure can realize strutting in advance/tighten up the function in advance of jump ring pressure equipment in-process, whole pressure equipment process is more stable, high efficiency, and be favorable to guaranteeing the quality of jump ring pressure equipment.

[ description of the drawings ]

The following detailed description of embodiments of the utility model is provided in conjunction with the appended drawings:

fig. 1 is a schematic structural view of a snap spring press-fitting jig according to a first embodiment of the utility model before press-fitting;

fig. 2 is an enlarged view of a middle ring a of the snap spring press-fitting jig shown in fig. 1;

fig. 3 is a schematic structural view of the snap spring press-fitting jig shown in fig. 1 in press-fitting;

fig. 4 is a schematic structural view of the snap spring press-fitting jig shown in fig. 1 after press-fitting;

fig. 5 is an enlarged view of a middle ring B of the snap spring press-fitting jig shown in fig. 4;

fig. 6 is a schematic structural view of a clamp spring press-fitting jig according to another embodiment of the utility model before press-fitting;

fig. 7 is a schematic structural view of the snap spring press-fitting jig shown in fig. 6 in press-fitting;

fig. 8 is a schematic structural diagram of the snap spring press-fitting jig shown in fig. 6 after press-fitting.

[ detailed description ] embodiments

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Referring to fig. 1 and 4, in the snap spring press-fitting jig 100 according to the first embodiment of the disclosure, the snap spring press-fitting jig 100 is suitable for mounting the snap spring 200 into the mounting groove 301 of the workpiece 300, the workpiece 300 is hollow, and the mounting groove 301 is disposed on the inner wall of the workpiece 300.

In this embodiment, the snap spring press-fitting jig 100 includes a base 1 located at the bottom, a movable seat 8 disposed at the top, a lower die set 2 mounted on the upper side of the base 1, an upper die set 3 mounted on the lower side of the movable seat 8, a first guide rail 5 and a second guide rail 6 vertically mounted on two sides of the base 1, an intermediate plate 4 movably connected between the first guide rails 5, and a first guide 7 fixed on the intermediate plate 4, wherein the upper die set 3 is located on the upper side of the lower die set 2, the intermediate plate 4 is located between the lower die set 2 and the upper die set 3 and can move up and down along the first guide rail 5, the second guide rail 6 is located on the outer side of the first guide rail 5, and the movable seat 8 is movably connected between the second guide rails 6 and can move up and down along the second guide rail 6 to drive the upper die set 3 thereon to move down and perform press-fitting operation.

Referring to fig. 2, the first guide 7 includes a hollow cylindrical body 73, a locking groove 72 recessed inward from a top of the cylindrical body 73, a locking wing 74 extending outward from a bottom of the cylindrical body 73, and a hole 75 penetrating the locking wing 74, and a fixing member passes through the hole 75 to mount the first guide 7 to the middle plate 4; the workpiece 300 is positioned within the pocket 72 and supported on the intermediate plate 4.

Referring to fig. 2, 3 and 5, the lower die set 2 includes a first push rod 21 fixed on the base 1, a second push rod 22 sleeved on an outer periphery of the first push rod 21, and a positioning block 23 connected to an outer periphery of the second push rod 22, a snap spring 200 is disposed on a top surface of the second push rod 22 and located inside the positioning block 23, top surfaces of the first push rod 21 and the second push rod 22 are located in the same plane, the second push rod 22 includes a first guide surface 221 disposed on an outer periphery of a top portion, the first guide 7 further includes a second guide surface 71 disposed on an inner periphery of a bottom portion of the cylindrical body 73, the second guide surface 71 is flared outward from an inner side of the cylindrical body 73, an upper end of the second push rod 22 is arranged in a tapered shape and gradually decreases in diameter toward the top surface, the first guide surface 221 and the second guide surface 71 are both arranged in an inclined manner, and the first guide surface 221 is parallel to the second guide surface 71 to facilitate the extension of the second push rod 22 to the inside of the first guide 7.

In the present embodiment, the inner diameter of the second push rod 22, the outer diameter of the first push rod 21, the inner diameter of the tubular body 73 of the first guide 7, and the inner diameter of the workpiece 300 are kept in the same size, and the axial center is located on the same straight line. In the actual press-fitting process, the circlip 200 first moves obliquely upward along the second guide surface 71 under the action of the second push rod 22 while the circlip 200 moves from the top surface of the second push rod 22 to the top surface of the first push rod 21, and then the circlip 200 moves into the mounting groove 301 along the inner wall of the cylindrical body 73 and the inner wall of the workpiece 300 under the action of the first push rod 21, and the press-fitting operation is completed. According to the utility model, the pre-tightening function in the press-fitting process of the snap spring 200 is realized by arranging the second push rod 22 and the first guide piece 7 which are matched with each other in an inclined manner, so that the whole press-fitting process is more stable and efficient, and the press-fitting quality of the snap spring is ensured.

Referring to fig. 2, the second push rod 22 includes a support portion 222 protruding outward from the outer periphery of the bottom portion, a first sliding groove 223 extending along the vertical direction, and a second pin 224 passing through the support portion 222; the positioning block 23 includes a groove 231 recessed inward from the bottom surface, a first spring 232 accommodated in the groove 231, a support 233 fixed to the support portion 222, and a first pin 234 penetrating the sidewall; and the first push rod 21 includes a second slide groove 211 extending in the up-down direction. The first spring 232 is sleeved on the periphery of the support 233, one end of the first spring 232 abuts against the groove 231, and the other end abuts against the upper end surface of the support portion 222, so that the positioning block 23 moves up and down between the first guide 7 and the second push rod 22 under the action of the first spring 232, and in the limit position, the upper end surface of the positioning block 23 abuts against the lower end surface of the first guide 7, the lower end surface of the positioning block 23 abuts against the upper end surface of the support portion 222, and at this time, the snap spring 200 completes the transition from the top surface of the second push rod 22 to the top surface of the first push rod 21.

In the present embodiment, the lower die set 2 includes a second spring 24 sleeved on the outer periphery of the first push rod 21, the upper end of the second spring 24 abuts against the lower end of the supporting portion 222, and the lower end of the second spring 24 is supported by the first push rod 21.

In this embodiment, the first pin 234 protrudes into the first sliding groove 223, so that the positioning block 23 moves up and down along the first sliding groove 223 of the second push rod 22; the second pin 224 protrudes into the second slide slot 211 so that the second push rod moves up and down along the second slide slot 211 of the first push rod 21.

Referring to fig. 6 to 8, in the second embodiment of the present invention, the circlip press-fitting jig 500 also installs the circlip 600 into the installation groove 701 of the workpiece 700, and unlike the first embodiment, the installation groove 701 is disposed on the outer wall of the workpiece 700.

In this embodiment, the snap spring press-fitting jig 500 includes a base 501 located at the bottom, a moving seat 508 disposed at the top, an upper mold assembly 503 mounted on the lower side of the moving seat 508, a lower mold assembly 502 mounted on the upper side of the base 501, moving guide rails 506 vertically mounted on two sides of the base 501, and a second guide 507 sleeved on the upper end of the workpiece 700, the snap spring 600 is placed on the periphery of the second guide 507 before press-fitting, the lower mold assembly 502 is disposed on the lower side of the upper mold assembly 503, the workpiece 700 is disposed on the lower mold assembly 502, and the moving seat 508 is movably connected between the moving guide rails 506 and can move downward along the moving guide rails 506 to drive the upper mold assembly 503 thereon to move downward, so as to drive the snap spring 600 to move along the second guide 507 into the mounting groove 701 of the workpiece 700.

Referring to fig. 7, the upper mold assembly 503 includes a third push rod 531 fixed to the moving seat 508, a fourth push rod 532 disposed inside the third push rod 531, and a third spring 533 sleeved on the periphery of the fourth push rod 532, bottom surfaces of the third push rod 531 and the fourth push rod 532 are located in the same plane, the third spring 533 is located inside the third push rod 531, an upper end of the third spring 533 is supported by the moving seat 508, and a lower end of the third spring 533 abuts against the fourth push rod 532.

In the present embodiment, the second guide member 507 includes a third guide surface 571 provided on the outer periphery of the top portion, and the upper end of the second guide member 507 is arranged in a tapered shape and has a diameter gradually decreasing toward the top surface; the fourth push rod 532 includes a fourth guide surface 5321 provided on the inner periphery of the bottom portion, and specifically, the fourth push rod 532 includes a moving groove 5322 recessed inward from the bottom surface, the moving groove 5322 has a shape corresponding to the upper end shape of the second guide 507, and the fourth guide surface 5321 is formed on the inner peripheral wall of the moving groove 5322.

In the present embodiment, the fourth guide surface 5321 and the third guide surface 571 are each arranged obliquely, and the fourth guide surface 5321 is parallel to the third guide surface 571, and further, the outer diameter of the fourth push rod 532, the inner diameter of the third push rod 531, the outer diameter of the second guide 507, and the outer diameter of the workpiece 700 are kept in agreement and the axial center is located on the same straight line. In an actual press-fitting process, the snap spring 600 first moves obliquely downward along the third guide surface 571 under the action of the fourth push rod 532, and at the same time, the snap spring 600 moves from the bottom surface of the fourth push rod 532 to the bottom surface of the third push rod 531, and then the snap spring 600 moves into the mounting groove 701 along the outer wall of the second guide 507 and the outer wall of the workpiece 700 under the action of the third push rod 531, and the press-fitting operation is completed. Through setting up the fourth push rod 532 and the second guide 507 of mutual slope complex to realize the function of strutting in advance in the pressure equipment process of jump ring 600, whole pressure equipment process is more stable, and is efficient, and is favorable to guaranteeing the quality of jump ring pressure equipment.

In the utility model, when the clamp spring is installed in the installation groove of the inner wall of the workpiece, the top outer periphery of the second push rod 22 is provided with a first guide surface 221, the bottom inner periphery of the first guide piece 7 is provided with a second guide surface 71, the first guide surface 221 is parallel to the second guide surface 71, the clamp spring moves along the second guide surface 71 from the top surface of the second push rod 22 to the top surface of the first push rod 21, and then the clamp spring is pushed into the installation groove through the first push rod 21; when the clamp spring is installed in the installation groove of the outer wall of the workpiece, the inner periphery of the bottom of the fourth push rod 532 is provided with a fourth guide surface 5321, the outer periphery of the top of the second guide part 507 is provided with a third guide surface 571, the fourth guide surface 5321 is parallel to the third guide surface 571, the clamp spring moves from the bottom surface of the fourth push rod 532 to the bottom surface of the third push rod 531 along the third guide surface 571, and then the clamp spring is pushed into the installation groove through the third push rod 531

The present invention is not limited to the above-described embodiments. Those skilled in the art will readily appreciate that there are numerous other alternatives to the circlip press fitting jig of the present invention without departing from the spirit and scope of the utility model. The protection scope of the present invention is subject to the content of the claims.

Claims (10)

1. A clamp spring press-mounting jig is suitable for mounting a clamp spring into a mounting groove of a workpiece, and comprises a base, a lower die set, an upper die set and a middle plate, wherein the base is positioned at the bottom of the clamp spring press-mounting jig; the method is characterized in that: the lower die set is including being fixed in the first push rod of base, the cover is located the second push rod of first push rod periphery and connect in the locating piece of second push rod periphery, the jump ring place in the top surface of second push rod and be located the inboard of locating piece, the second push rod is including locating the first guide face of top periphery, jump ring pressure equipment tool is including being fixed in the first guide of intermediate lamella, first guide is including locating the second guide face of bottom periphery, first guide face is on a parallel with the second guide face, the jump ring along the second guide face, in order to follow the top surface of second push rod removes to the top surface of first push rod.

2. The clamp spring press-fitting jig according to claim 1, wherein: the second push rod comprises a supporting part protruding outwards from the periphery of the bottom, the upper end face of the positioning block abuts against the lower end face of the first guide part, and the lower end face of the positioning block abuts against the upper end face of the supporting part.

3. The clamp spring press-fitting jig according to claim 2, wherein: the locating piece includes from the inside sunken recess of bottom surface, accept in first spring in the recess and be fixed in the support piece of bearing, first spring cover is located the periphery of support piece, the one end butt of first spring is in the recess, the other end butt in the up end of bearing.

4. The clamp spring press-fitting jig according to claim 3, wherein: the positioning block comprises a first pin penetrating through the side wall, the second push rod comprises a first sliding groove extending along the vertical direction, and the first pin protrudes into the first sliding groove and moves up and down along the first sliding groove.

5. The clamp spring press-fitting jig according to claim 4, wherein: the second push rod comprises a second pin penetrating through the supporting part, the first push rod comprises a second sliding groove extending along the vertical direction, and the second pin protrudes into the second sliding groove and moves up and down along the second sliding groove.

6. The clamp spring press-fitting jig according to claim 5, wherein: the lower die set comprises a second spring sleeved on the periphery of the first push rod, the upper end of the second spring abuts against the lower end of the supporting part, and the lower end of the second spring is supported on the first push rod.

7. A clamp spring press-fitting jig is suitable for installing a clamp spring into an installation groove of a workpiece, and comprises a movable seat arranged at the top, an upper die set arranged on the movable seat, and a lower die set arranged on the lower side of the upper die set, wherein the workpiece is arranged on the lower die set, and the installation groove is formed in the outer wall of the workpiece; the method is characterized in that: the upper die assembly comprises a third push rod fixed on the moving seat and a fourth push rod arranged on the inner side of the third push rod, the clamp spring press-fitting jig is arranged on a second guide piece on the upper end of the workpiece in a sleeved mode, the clamp spring is arranged on the periphery of the second guide piece, the second guide piece comprises a third guide face arranged on the periphery of the top, the fourth push rod comprises a fourth guide face arranged on the inner periphery of the bottom, the fourth guide face is parallel to the third guide face, and the clamp spring is arranged along the third guide face and moves to the bottom face of the third push rod from the bottom face of the fourth push rod.

8. The circlip press-fitting jig of claim 7, wherein: the upper die set comprises a third spring sleeved on the periphery of the fourth push rod, the third spring is located on the inner side of the third push rod, the upper end of the third spring is supported on the movable seat, and the lower end of the third spring is abutted to the fourth push rod.

9. The snap spring press-fitting jig according to claim 8, wherein: the fourth push rod includes a moving groove depressed inward from a bottom surface, the moving groove having a shape conforming to the shape of the second guide, and the fourth guide surface is formed on an inner peripheral wall of the moving groove.

10. The circlip press-fitting jig of claim 9, which is characterized in that: the clamp spring press-fitting jig comprises a base arranged at the bottom and moving guide rails vertically arranged on two sides of the base, and the moving base moves downwards along the moving guide rails to drive the upper die set to move downwards so as to drive the clamp spring to move into the mounting groove from the second guide piece.

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