CN217020216U - Spring pin assembling tool - Google Patents

Abstract

The utility model relates to the technical field of mechanical assembly, in particular to an elastic pin assembling tool. The tool comprises a supporting piece, a push rod and a guide piece, wherein the supporting piece comprises a transverse part, a vertical part and a claw, the upper end of the vertical part is connected with the transverse part, the lower end of the vertical part is connected with the claw, and the transverse part and the claw are arranged on the same side; the push rod is in threaded connection with the transverse part, the upper end of the push rod is provided with a force application part, and the lower end of the push rod penetrates through the transverse part; the guide piece comprises a floating connector and a pressing rod, the floating connector is connected with the lower end of the push rod in a floating mode, a positioning surface is formed at the joint of the floating connector and the pressing rod, the pressing rod is inserted into the elastic pin which is of a hollow structure, and the upper end face of the elastic pin is abutted to the positioning surface. During operation, the rotating push rod pushes the guide piece to move downwards, and then the elastic pin is pressed into an assembly hole of a workpiece to be processed. The elastic pin assembling tool provided by the embodiment has the advantages of simple structure, convenience in carrying, safety, reliability, high efficiency and the like.

Description

Spring pin assembling tool

Technical Field

The utility model relates to the technical field of mechanical assembly, in particular to an elastic pin assembling tool.

Background

The elastic pin is a hollow cylindrical body with an axial groove and is used for positioning, connecting, fixing and the like of parts, the outer diameter of the elastic pin is slightly larger than the assembly hole diameter, and the elastic pin is firmly fixed in the assembly hole by means of self elasticity after being pressed into or knocked into the assembly hole by external force, so that the limiting and fixing of the parts are realized. The prior art usually uses a copper hammer to directly knock in when assembling the elastic pin, and the assembling mode has the following defects: the operation error is easy to cause industrial injury, and the labor intensity is high; the elastic pin is easy to be misplaced due to knocking and vibration, the hole position needs to be repeatedly aligned, and the efficiency is low; the spring pin is liable to cause quality defects and the like. And the mode of pressing the elastic pin by adopting the press-fitting machine is more complicated, and the occupied area is large, thereby being not beneficial to the assembly of a single elastic pin.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an assembling tool for an elastic pin, which aims to solve the problems that the assembling quality is poor, the efficiency is low, the industrial injury is easy to cause, the labor intensity is high and the like in the process of assembling the elastic pin in the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a spring pin assembly tool comprising:

the supporting piece comprises a transverse part, a vertical part and a hook claw, wherein the upper end of the vertical part is connected with the transverse part, the lower end of the vertical part is connected with the hook claw, and the transverse part and the hook claw are arranged on the same side;

the push rod is in threaded connection with the transverse part, a force application part is arranged at the upper end of the push rod, and the lower end of the push rod penetrates through the transverse part;

the guide piece, the guide piece is including unsteady connector and depression bar, unsteady connector with the lower extreme of push rod is floated and is connected, unsteady connector with the junction of push rod forms the locating surface, the depression bar inserts in the elastic pin that is hollow structure, just the up end butt of elastic pin in the locating surface.

Furthermore, the hook claw is provided with a first groove matched with the appearance of the workpiece to be processed, a guide through hole is formed in the bottom of the first groove, and the lower end of the pressing rod penetrates out of the elastic pin and can penetrate through the guide through hole.

Further, the lower end of the push rod is provided with a ball head, the floating connector is provided with a connecting groove, the ball head is inserted into the connecting groove, and the connecting groove can limit the ball head to be separated.

Further, the elastic pin assembling tool further comprises a clamping component, the clamping component is arranged above the hook claw, and a workpiece to be machined can be clamped between the clamping component and the hook claw.

Furthermore, the clamping assembly comprises a clamping part, a pin shaft and a torsion spring, and the clamping part is rotatably connected with the vertical part through the pin shaft; the torsional spring cover is located the round pin axle, the one end of torsional spring connect in the clamping part, its other end connect in vertical portion, the clamping part is close to the one end of waiting to process the work piece and is in the torsion effect of torsional spring is down towards pressing from both sides the direction rotation of waiting to process the work piece.

Further, the clamping part sets up to the U type, including first clamping part, second clamping part and connection first clamping part with the connecting piece of second clamping part, first clamping part with the second clamping part set up respectively in the both sides that support piece is relative, just first clamping part with the one end that the second clamping part is close to the work piece of treating processing is provided with and treats the second recess of processing work piece appearance looks adaptation.

Further, first clamping part is provided with first through-hole, vertical portion is provided with the second through-hole, the second clamping part is provided with the third through-hole, the one end of round pin axle is worn to locate in proper order first through-hole second through-hole and the third through-hole, just the both ends of round pin axle are provided with lock nut respectively.

Further, the first through hole comprises a fourth through hole and a fifth through hole which are connected in a step shape, and the aperture of the fourth through hole is larger than that of the fifth through hole; a first connecting hole is formed in the connecting surface of the fourth through hole and the fifth through hole; the vertical part is provided with a second connecting hole; the torsion spring comprises a torsion spring main body, a first straight portion and a second straight portion, the first straight portion and the second straight portion are connected to the two ends of the torsion spring main body, the torsion spring main body is arranged in the fourth through hole, the first straight portion is inserted into the first connecting hole, and the second straight portion is inserted into the second connecting hole.

Further, the number of the torsion springs is two; the third through hole comprises a sixth through hole and a seventh through hole which are connected in a step shape, and the aperture of the sixth through hole is larger than that of the seventh through hole; and a third connecting hole is formed in the connecting surface of the sixth through hole and the seventh through hole, the torsion spring main body of the other torsion spring is arranged in the sixth through hole, the first flat part of the other torsion spring penetrates through the third connecting hole, and the second flat part of the other torsion spring penetrates through the second connecting hole.

Furthermore, one end, far away from the workpiece to be machined, of the clamping part is provided with a first handle, the supporting part is provided with a second handle, and the second handle is arranged below the first handle.

The utility model has the beneficial effects that:

the utility model provides an elastic pin assembling tool which comprises a supporting piece, a push rod and a guide piece, wherein the supporting piece comprises a transverse part, a vertical part and a claw; the push rod is in threaded connection with the transverse part, the upper end of the push rod is provided with a force application part, and the lower end of the push rod penetrates through the transverse part; the guide piece comprises a floating connector and a pressing rod, the floating connector is connected with the lower end of the push rod in a floating mode, a positioning surface is formed at the joint of the floating connector and the pressing rod, the pressing rod is inserted into the elastic pin which is of a hollow structure, and the upper end face of the elastic pin is abutted to the positioning surface. The during operation, it is fixed to wait to process at least one end of work piece, will wait to process the part that the work piece need install the elastic pin and place on the hook, and the operation personnel order about the push rod and rotate, make the push rod downstream, and then drive the depression bar downstream through the connector that floats, the up end and the locating surface contact of elastic pin to along with the removal extrusion elastic pin downstream of depression bar, and then impress the elastic pin in the assembly hole of waiting to process the work piece, accomplish the assembly. Because the lower end of the push rod is in a floating connection structure with the floating connector, the elastic pin is not affected by the verticality of the whole structure in the pressing process, the elastic pin is allowed to incline at a certain angle relative to the assembly hole, and the elastic pin can be smoothly pressed into the assembly hole of the workpiece to be processed. Compare in prior art and use the mode that the copper hammer knocks the pilot hole into with the elastic pin, the elastic pin erecting tool that this embodiment provided has safe and reliable, need not relapse to the position of hole, advantages such as assembly efficiency height, high quality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a cross-sectional view of a spring pin assembly tool according to an embodiment of the present invention;

FIG. 2 is a front view of a spring pin installation tool according to an embodiment of the present invention;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a schematic view of the structure of FIG. 2 at A;

FIG. 5 is a schematic structural diagram of a clamping assembly according to an embodiment of the present invention;

fig. 6 is a schematic structural view and a schematic positional view of a limiting block in the elastic pin assembling tool according to the embodiment of the present invention.

An icon:

1-a support; 11-a transverse portion; 12-a vertical portion; 121-a second via; 122-second connection hole; 13-a claw; 131-a guide through hole; 14-a second handle;

2-a push rod;

3-a guide; 31-floating connectors; 32-a pressure bar;

4-a handpiece;

5-a resilient pin;

6-a clamping assembly; 61-a clamping portion; 611-a first clamping portion; 6111-a first via; 6112-fourth via; 6113-fifth via; 6114-first connection hole; 612-a second clamping section; 6121-third via; 6122-sixth via; 6123-seventh via; 6124-third connecting hole; 613-connecting piece; 62-a pin shaft; 63-torsion spring; 631-torsion spring body; 632-a first straight portion; 633-a second straight portion; 64-a locking nut; 65-a first handle; 66-a limiting block;

7-the workpiece to be processed.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. 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.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

It should be noted that, in the description of the present invention, the terms "connected" and "mounted" should be interpreted broadly, for example, they may be fixedly connected, detachably connected, or integrally connected; can be directly connected or connected through an intermediate medium; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

The embodiment of the utility model provides an elastic pin assembling tool, and referring to fig. 1, the elastic pin assembling tool comprises a support member 1, a push rod 2 and a guide member 3, and the specific structure is as follows: the supporting piece 1 comprises a transverse part 11, a vertical part 12 and a hook claw 13, wherein the upper end of the vertical part 12 is connected with the transverse part 11, the lower end of the vertical part 12 is connected with the hook claw 13, and the transverse part 11 and the hook claw 13 are arranged on the same side; the push rod 2 is in threaded connection with the transverse part 11, a force application part is arranged at the upper end of the push rod 2, and the lower end of the push rod 2 penetrates through the transverse part 11; the guide piece 3 comprises a floating connector 31 and a pressure lever 32, a positioning surface is formed at the joint of the floating connector 31 and the pressure lever 32, the pressure lever 32 is inserted into the elastic pin 5 with a hollow structure, and the upper end surface of the elastic pin 5 abuts against the positioning surface.

Through the structure, during operation, at least one end of the workpiece 7 to be processed is fixed, the part of the workpiece 7 to be processed, which needs to be provided with the elastic pin 5, is placed on the claw 13, an operator drives the push rod 2 to rotate, so that the push rod 2 moves downwards, the floating connector 31 drives the press rod 32 to move downwards, the upper end surface of the elastic pin 5 is contacted with the positioning surface, the elastic pin 5 is extruded to move downwards along with the movement of the press rod 32, the elastic pin 5 is pressed into an assembly hole of the workpiece 7 to be processed, and assembly is completed. In the assembling process, the push rod 2 and the hook claw 13 play a role of mutual supporting, acting forces are mutually offset, and the cantilever end of the workpiece 7 to be processed cannot be impacted downwards, so that the risks of deformation and deflection of the workpiece 7 to be processed and damage to a supporting hole are avoided; the pressure lever 32 plays a role in guiding, so that the elastic pin 5 can be smoothly pressed into an assembly hole of the workpiece 7 to be processed; during the assembly, the unaided eye can't guarantee the depth of parallelism of the axis of spring pin 5 and pilot hole, in this embodiment, because the lower extreme of push rod 2 is the structure of adopting the connection of floating with unsteady connector 31 for spring pin 5 does not receive the verticality influence of whole structure at the in-process that pushes down, allows spring pin 5 to have the slope of certain angle for the pilot hole, ensures that spring pin 5 can impress smoothly in the pilot hole of waiting to process work piece 7. The assembling tool for the elastic pin has the advantages of safety, reliability, high efficiency and the like; the portable multifunctional electric scooter is simple and compact in structure, convenient to carry, free of site constraint and capable of being used under the conditions of small-batch assembly of products, after-sale maintenance and the like.

Optionally, the force application portion of the push rod 2 is provided with a hand piece 4, and the hand piece 4 is provided with a rod-shaped structure penetrating through a through hole provided in the force application portion, so as to facilitate the hand to apply force to rotate the push rod 2. In other embodiments, the force application portion may be connected to a pneumatic wrench by which the push rod 2 is rotated.

Alternatively, the support member 1 is formed integrally with the horizontal portion 11, the vertical portion 12 and the hook 13, thereby simplifying the assembly process.

Further, the finger 13 is provided with a first groove adapted to the outer shape of the workpiece 7 to be machined. In this embodiment, the first groove is specifically configured to be V-shaped, and in other embodiments, the first groove may also be configured to be arc-shaped, and the specific shape is adjusted according to the shape of the actually processed workpiece. The provision of the first groove enables the workpiece 7 to be processed to be placed more stably.

Further, a guide through hole 131 is formed in the bottom of the first groove, and the lower end of the pressing rod 32 penetrates out of the elastic pin 5 and can penetrate through the guide through hole 131. The guide through hole 131 can restrict the position of the lower end of the pressing rod 32, so that the lower end of the pressing rod 32 is prevented from deviating from the vertical direction by too large an angle, and the elastic pin 5 can be smoothly pressed into the assembly hole of the workpiece 7 to be processed.

Optionally, the lower end of the push rod 2 is provided with a ball head, the floating connector 31 is provided with a connecting groove, the ball head is inserted into the connecting groove, and the connecting groove can limit the ball head to be separated from the connecting groove, so that the floating connector 31 is connected with the lower end of the push rod 2 in a floating manner. In the embodiment, a connecting shaft with the diameter smaller than that of the ball head is connected above the ball head, the connecting grooves comprise a first connecting groove and a second connecting groove which are connected in a step shape, the diameter of the first connecting groove is larger than that of the second connecting groove, and the diameter of the second connecting groove is smaller than that of the ball head; during installation, the ball head is inserted into the first connecting groove, and the connecting shaft is inserted into the second connecting groove, so that the ball head cannot be separated from the second connecting groove above the ball head.

With further reference to fig. 1 and 2, the spring pin assembling tool further includes a clamping assembly 6, the clamping assembly 6 being disposed above the finger 13, the workpiece 7 to be machined being capable of being clamped between the clamping assembly 6 and the finger 13. The clamping assembly 6 is arranged to pre-position the workpiece 7 to be processed and the elastic pin 5, so that the subsequent press-fitting process of the elastic pin 5 is facilitated.

Specifically, the clamping assembly 6 includes a clamping portion 61, a pin 62, and a torsion spring 63, the clamping portion 61 and the vertical portion 12 are rotatably connected by the pin 62; the torsion spring 63 is sleeved on the pin 62, one end of the torsion spring 63 is connected to the clamping portion 61, the other end of the torsion spring 63 is connected to the vertical portion 12, and one end of the clamping portion 61, which is close to the workpiece 7 to be machined, rotates in a direction of clamping the workpiece 7 to be machined under the torsion action of the torsion spring 63. When in use, external force is applied to the clamping part 61, so that the clamping part 61 rotates towards the direction away from the claw 13; next, the workpiece 7 to be processed is placed between the hook claw 13 and the clamping part 61; the clamping portion 61 is released, and the clamping portion 61 clamps the workpiece 7 to be processed in cooperation with the hook claw 13 under the torsion force of the torsion spring 63.

Alternatively, the end of the clamping part 61 remote from the workpiece 7 to be processed is provided with a first handle 65, the support 1 is provided with a second handle 14, and the second handle 14 is arranged below the first handle 65. When the clamping device is used, an external force which enables the first handle 65 and the second handle 14 to approach each other is applied to the first handle and the second handle at the same time, so that the clamping part 61 can rotate towards the direction far away from the claw 13 (i.e. the workpiece 7 to be processed is loosened), and the clamping device is convenient and labor-saving to use. The first handle 65 and the second handle 14 may be screwed to the holder 61 and the support 1, respectively, or may be fixed by welding.

Referring to fig. 3, the clamping portion 61 is provided with a U shape, and includes a first clamping portion 611, a second clamping portion 612, and a connecting member 613 for connecting the first clamping portion 611 and the second clamping portion 612, the first clamping portion 611 and the second clamping portion 612 are respectively disposed at two opposite sides of the support 1, and one ends of the first clamping portion 611 and the second clamping portion 612 close to the workpiece 7 to be processed are provided with a second groove adapted to the shape of the workpiece 7 to be processed. In this embodiment, the first clamping portion 611 and the second clamping portion 612 are respectively disposed on two opposite sides of the support 1, so that the workpiece 7 to be processed is clamped and limited on two sides of the elastic pin 5, and the device is stable and reliable as a whole.

Referring to fig. 4 and 5, the first clamping portion 611 is provided with a first through hole 6111, the vertical portion 12 is provided with a second through hole 121, the second clamping portion 612 is provided with a third through hole 6121, one end of the pin 62 sequentially penetrates through the first through hole 6111, the second through hole 121 and the third through hole 6121, and two ends of the pin 62 are respectively provided with the locking nuts 64.

Further, the first through hole 6111 includes a fourth through hole 6112 and a fifth through hole 6113 which are connected in a step shape, and the aperture of the fourth through hole 6112 is larger than that of the fifth through hole 6113; a first connecting hole 6114 is formed on the connecting surface of the fourth through hole 6112 and the fifth through hole 6113; the vertical part 12 is provided with a second connecting hole 122; the torsion spring 63 includes a torsion spring main body 631, and a first straight portion 632 and a second straight portion 633 connected to two ends of the torsion spring main body 631, the torsion spring main body 631 is disposed in the fourth through hole 6112, the first straight portion 632 is inserted into the first connecting hole 6114, and the second straight portion 633 is inserted into the second connecting hole 122. With the above structure, the torsion force of the torsion spring 63 is transmitted to the support 1 and the clamping portion 61.

Further, in order to increase the pressing force of the clamping assembly 6, the number of the torsion springs 63 is two in the present embodiment. Specifically, the third through hole 6121 includes a sixth through hole 6122 and a seventh through hole 6123 which are connected in a step shape, and the aperture of the sixth through hole 6122 is larger than that of the seventh through hole 6123; a third connecting hole 6124 is formed on the connecting surface of the sixth through hole 6122 and the seventh through hole 6123, the torsion spring main body 631 of the other torsion spring 63 is disposed in the sixth through hole 6122, the first straight portion 632 of the other torsion spring 63 is disposed in the third connecting hole 6124 in a penetrating manner, and the second straight portion 633 of the other torsion spring 63 is disposed in the second connecting hole 122 in a penetrating manner.

Referring to fig. 6, a stop block 66 is protruded from a side surface of the supporting member 1, and the stop block 66 is disposed below the clamping portion 61. The limiting block 66 may be disposed below the first clamping portion 611 or the second clamping portion 612; two limit blocks 66 may also be disposed below the first clamping portion 611 and the second clamping portion 612, respectively. The limiting block 66 is arranged to limit the rotation angle of the clamping portion 61, and the rotation angle of the clamping portion 61 is prevented from being too large.

In the assembly of the elastic pin assembly tool provided in this embodiment, first, the lower end of the push rod 2 is unscrewed from the transverse portion 11, and the guide 3 is attached to the lower end of the push rod 2; then, the pin shaft 62 is inserted into the second through hole 121 of the vertical portion 12, the two torsion springs 63 are respectively sleeved at the two ends of the pin shaft 62, and the second straight portion 633 is inserted into the second connecting hole 122; then, the first through hole 6111 of the first clamping portion 611 and the third through hole 6121 of the second clamping portion 612 are respectively sleeved at two ends of the pin shaft 62, and the first connecting hole 6114 and the third connecting hole 6124 are respectively sleeved at the first straight portions 632 of the two torsion springs 63; finally, the two ends of the pin 62 are locked and fixed by the locking nuts 64, and the first clamping portion 611 and the second clamping portion 612 are connected by the connecting member 613, thereby completing the integral assembly. When the clamping device is used, a workpiece 7 to be processed is placed between the first groove of the hook claw 13 and the second groove of the clamping part 61, the elastic pin 5 is sleeved on the pressing rod 32, the push rod 2 can be rotated, and the elastic pin 5 is pressed into the assembling hole of the workpiece 7 to be processed. The elastic pin assembling tool provided by the embodiment has the advantages of convenient and simple assembling and using processes and high practicability.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A spring pin assembly tool, comprising:

the supporting piece (1) comprises a transverse part (11), a vertical part (12) and a hook claw (13), the upper end of the vertical part (12) is connected with the transverse part (11), the lower end of the vertical part (12) is connected with the hook claw (13), and the transverse part (11) and the hook claw (13) are arranged on the same side;

the push rod (2) is in threaded connection with the transverse part (11), a force application part is arranged at the upper end of the push rod (2), and the lower end of the push rod (2) penetrates through the transverse part (11);

guide (3), guide (3) are including unsteady connector (31) and depression bar (32), unsteady connector (31) with the lower extreme of push rod (2) is floated and is connected, unsteady connector (31) with the junction of depression bar (32) forms the locating surface, depression bar (32) insert in elastic pin (5) that are hollow structure, just the up end butt of elastic pin (5) in the locating surface.

2. The spring pin assembly tool according to claim 1, wherein the hook claw (13) is provided with a first groove adapted to the shape of the workpiece (7) to be machined, the bottom of the first groove is provided with a guide through hole (131), and the lower end of the pressure lever (32) penetrates out of the spring pin (5) and can be inserted into the guide through hole (131).

3. The spring pin assembly tool according to claim 1, wherein the lower end of the push rod (2) is provided as a ball head, and the floating connector (31) is provided with a connecting groove, the ball head is inserted into the connecting groove, and the connecting groove can limit the ball head from being pulled out.

4. The spring pin fitting tool according to any one of claims 1 to 3, characterized in that it further comprises a clamping assembly (6), the clamping assembly (6) being arranged above the finger (13), the workpiece (7) to be machined being able to be clamped between the clamping assembly (6) and the finger (13).

5. The spring pin assembly tool according to claim 4, characterized in that the clamping assembly (6) comprises a clamping portion (61), a pin shaft (62) and a torsion spring (63), the clamping portion (61) and the vertical portion (12) being rotatably connected by the pin shaft (62); the round pin axle (62) is located to torsional spring (63) cover, the one end of torsional spring (63) connect in clamping part (61), its other end connect in vertical portion (12), clamping part (61) are close to the one end of waiting to process work piece (7) and are in the torsion effect of torsional spring (63) is down towards pressing from both sides the direction rotation of tightly waiting to process work piece (7).

6. The spring pin assembling tool according to claim 5, wherein the clamping portion (61) is provided in a U-shape, and comprises a first clamping portion (611), a second clamping portion (612), and a connecting member (613) connecting the first clamping portion (611) and the second clamping portion (612), the first clamping portion (611) and the second clamping portion (612) are respectively provided on two opposite sides of the support member (1), and one ends of the first clamping portion (611) and the second clamping portion (612) close to the workpiece (7) to be machined are provided with second grooves adapted to the outer shape of the workpiece (7) to be machined.

7. The elastic pin assembling tool according to claim 6, wherein the first clamping portion (611) is provided with a first through hole (6111), the vertical portion (12) is provided with a second through hole (121), the second clamping portion (612) is provided with a third through hole (6121), one end of the pin shaft (62) penetrates through the first through hole (6111), the second through hole (121) and the third through hole (6121) in sequence, and two ends of the pin shaft (62) are respectively provided with a locking nut (64).

8. The spring pin assembly tool according to claim 7, wherein the first through hole (6111) comprises a fourth through hole (6112) and a fifth through hole (6113) which are connected in a step shape, and the aperture of the fourth through hole (6112) is larger than that of the fifth through hole (6113); a first connecting hole (6114) is formed in the connecting surface of the fourth through hole (6112) and the fifth through hole (6113); the vertical part (12) is provided with a second connecting hole (122); the torsion spring (63) comprises a torsion spring main body (631) and a first straight part (632) and a second straight part (633) which are connected to two ends of the torsion spring main body (631), the torsion spring main body (631) is arranged at the fourth through hole (6112), the first straight part (632) is inserted into the first connecting hole (6114), and the second straight part (633) is inserted into the second connecting hole (122).

9. The elastic pin assembly tool according to claim 8, characterized in that the number of torsion springs (63) is two; the third through hole (6121) comprises a sixth through hole (6122) and a seventh through hole (6123) which are connected in a step shape, and the aperture of the sixth through hole (6122) is larger than that of the seventh through hole (6123); a third connecting hole (6124) is formed in the connecting surface of the sixth through hole (6122) and the seventh through hole (6123), the torsion spring main body (631) of the other torsion spring (63) is arranged in the sixth through hole (6122), the first straight portion (632) of the other torsion spring (63) penetrates through the third connecting hole (6124), and the second straight portion (633) of the other torsion spring (63) penetrates through the second connecting hole (122).

10. Tool according to claim 5, characterised in that the end of the clamping part (61) remote from the workpiece (7) to be machined is provided with a first handle (65), the support (1) is provided with a second handle (14), and the second handle (14) is arranged below the first handle (65).

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