Assembling clamp for crimping bolt

Abstract

The utility model discloses an assembling clamp of a crimping bolt, which comprises a crimping base, a positioning groove is arranged at the top of the crimping base, a circular plate is fixed at the bottom of the positioning groove through a screw, a spring is welded at the top of the circular plate, and the assembling clamp of the crimping bolt is provided with a first positioning column and a second positioning column. The central axis of the first positioning column and the central axis of the second positioning column coincide, it is guaranteed that the central axis of a crimping hole in the outer side of the first positioning column and the central axis of a through hole bolt on the outer side of the second positioning column coincide, the air cylinder drives the pressing column to move downwards, and then the pressing column pushes the through hole bolt and the first positioning column to move downwards at the same time; the position of the crimping hole is always fixed, the bottom of the through hole bolt and the crimping hole can be accurately crimped together, the circuit board does not need to be fixed, the crimping hole in the circuit board can coincide with the center of the through hole bolt, and therefore the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic industry manufacturing, and particularly relates to an assembly fixture for a crimping bolt. Background Art

[0002] Through holes bolts need to be installed in the crimping holes on the circuit board. Mainly, a crimping device is used to press the through holes bolts inside the crimping holes. For example, the Chinese utility model patent with the authorization publication number CN213592732U discloses an assembly fixture for a crimping stud, including: a crimping base, a pressing head, a pressing head guiding column, and a stud. By the above method, the assembly fixture for a crimping stud of the utility model reduces the positioning tolerance between the fixture and the fixture, and between the fixture and the stud, and the positioning is more accurate.

[0003] The above authorized patent has the following problems during use:

[0004] It is necessary to fix the circuit board to ensure that the central axis of the crimping hole on the circuit board coincides with the central axis of the through holes bolt, so as to ensure the accuracy of the crimping between the through holes bolt and the crimping hole on the circuit board. Since it is necessary to fix the circuit board, the operation is not convenient and fast enough.

[0005] In view of the above problems, it is urgent to innovate and design on the basis of the original assembly fixture for a crimping bolt. Summary of the Utility Model

[0006] The purpose of the utility model is to provide an assembly fixture for a crimping bolt to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the utility model provides the following technical solution: an assembly fixture for a crimping bolt, including a crimping base, a positioning groove is opened at the top of the crimping base, a round plate is fixed at the bottom of the positioning groove by screws, a spring is welded at the top of the round plate, a first positioning column is welded at the top of the spring, a second positioning column is fixed at the center of the top of the first positioning column, a through holes bolt is nested outside the second positioning column, the bottom of the through holes bolt abuts against the top of the first positioning column, a circuit board is arranged at the top of the crimping base, a crimping hole is opened on the circuit board, the upper end of the first positioning column penetrates inside the crimping hole, and a downward pressing mechanism is arranged at the top of the crimping base.

[0008] Preferably, the downward pressing mechanism includes a U-shaped frame, the U-shaped frame is fixed at the top of the crimping base, a cylinder is fixedly penetrated through the top of the U-shaped frame, a pressing column is fixed at the lower end of the cylinder, and the pressing column is located directly above the through holes bolt.

[0009] Preferably, a second through hole is provided in the middle of the second positioning post, a first through hole is provided in the middle of the first positioning post, and the central axes of the first through hole, the second through hole and the screw coincide with each other.

[0010] Preferably, the screw is threadedly connected to both the circular plate and the crimping base.

[0011] Preferably, the diameter of the bottom of the through-hole bolt is smaller than the diameter of the crimping hole, and the diameter of the top of the through-hole bolt is larger than the diameter of the crimping hole by mm.

[0012] Preferably, the central axes of the positioning groove, the first positioning post, the second positioning post, the through-hole bolt and the crimping hole coincide with each other, the outer side of the first positioning post fits with the inner side of the positioning groove, the outer side of the first positioning post fits with the inner side of the crimping hole, the outer side of the second positioning post fits with the inner side of the through-hole bolt, and at the same time, the diameter of the crimping hole coincides with the diameter of the positioning groove.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The assembly fixture for the crimping bolt is provided with a first positioning post and a second positioning post, and the central axes of the first positioning post and the second positioning post coincide with each other, ensuring that the central axes of the crimping hole on the outer side of the first positioning post and the through-hole bolt on the outer side of the second positioning post coincide with each other. The air cylinder drives the pressing post to move downward, and then the pressing post pushes the through-hole bolt and the first positioning post to move downward at the same time. Under the positioning of the first positioning post, the position of the crimping hole remains unchanged all the time, so that the bottom of the through-hole bolt can be accurately crimped with the crimping hole. Without fixing the circuit board, the centers of the crimping holes on the circuit board and the through-hole bolts can also coincide with each other, thus improving the working efficiency;

[0014] When the air cylinder drives the pressing post to move upward and reset, the elastic force generated by the spring pushes up the through-hole bolt and the circuit board through the first positioning post, thus facilitating the removal of the circuit board from the top of the crimping base;

[0015] A flat-blade screwdriver can pass through the interiors of the first through hole and the second through hole, so that the bottom of the flat-blade screwdriver can be engaged with the top of the screw. By rotating the flat-blade screwdriver, the screw can be rotated, and the screw can be disassembled, so that the circular plate, the spring and the first positioning post can be disassembled from the interior of the positioning groove for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front sectional structural view of the present utility model;

[0017] Figure 2 is the present utility model Figure 1 the enlarged structural view at A in;

[0018] Figure 3Schematic diagram of the upward view of the through-hole bolt of the present utility model for installation;

[0019] Figure 4 Schematic diagram of the top view of the crimping hole and the first positioning post of the present utility model for installation;

[0020] Figure 5 Schematic diagram of the top view of the positioning groove and the first positioning post of the present utility model for installation;

[0021] Figure 6 Schematic diagram of the top view of the circular plate of the present utility model for installation.

[0022] In the figure: 1, crimping base; 2, positioning groove; 3, circular plate; 4, screw; 5, spring; 6, first positioning post; 7, second positioning post; 8, through-hole bolt; 9, circuit board; 10, crimping hole; 11, first through-hole; 12, second through-hole; 13, U-shaped frame; 14, cylinder; 15, pressing column. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-6 , the present utility model provides a technical solution: an assembly fixture for a crimping bolt, including a crimping base 1, a positioning groove 2 is opened at the top of the crimping base 1, a circular plate 3 is fixed at the bottom of the positioning groove 2 by a screw 4, a spring 5 is welded at the top of the circular plate 3, a first positioning post 6 is welded at the top of the spring 5, a second positioning post 7 is fixed at the center of the top of the first positioning post 6, a through-hole bolt 8 is nested outside the second positioning post 7, the bottom of the through-hole bolt 8 abuts against the top of the first positioning post 6, a circuit board 9 is arranged at the top of the crimping base 1, a crimping hole 10 is opened on the circuit board 9, the upper end of the first positioning post 6 penetrates into the interior of the crimping hole 10, and a downward pressing mechanism is arranged at the top of the crimping base 1.

[0025] The downward pressing mechanism includes a U-shaped frame 13, the U-shaped frame 13 is fixed at the top of the crimping base 1, a cylinder 14 is fixedly penetrated through the top of the U-shaped frame 13, and a pressing column 15 is fixed at the lower end of the cylinder 14, and the pressing column 15 is located directly above the through-hole bolt 8.

[0026] A second through hole 12 is provided in the middle of the second positioning post 7, and a first through hole 11 is provided in the middle of the first positioning post 6. The central axes of the first through hole 11, the second through hole 12, and the screw 4 coincide with each other. The screw 4 is threadedly connected to both the circular plate 3 and the crimping base 1. A flat screwdriver can pass through the interiors of the first through hole 11 and the second through hole 12, so that the bottom of the flat screwdriver can engage with the top of the screw 4. By rotating the flat screwdriver, the screw 4 can be rotated, so that the screw 4 can be disassembled, so that the circular plate 3, the spring 5, and the first positioning post 6 can be disassembled from the inside of the positioning groove 2 for replacement.

[0027] The diameter of the bottom of the through-hole bolt 8 is smaller than the diameter of the crimping hole 10, which is beneficial for the bottom of the through-hole bolt 8 to be inserted into the inside of the crimping hole 10, and the diameter of the top of the through-hole bolt 8 is 1 mm larger than the diameter of the crimping hole 10, ensuring that the through-hole bolt 8 can be fixed inside the crimping hole 10.

[0028] The central axes of the positioning groove 2, the first positioning post 6, the second positioning post 7, the through-hole bolt 8, and the crimping hole 10 coincide with each other, and the outer side of the first positioning post 6 fits with the inner side of the positioning groove 2, and the outer side of the first positioning post 6 fits with the inner side of the crimping hole 10, and the outer side of the second positioning post 7 fits with the inner side of the through-hole bolt 8. At the same time, the diameter of the crimping hole 10 coincides with the diameter of the positioning groove 2. The design of the first positioning post 6 and the second positioning post 7 enables the central axis of the crimping hole 10 to coincide with the central axis of the through-hole bolt 8, so that the bottom of the through-hole bolt 8 can be accurately crimped and fixed together with the crimping hole 10.

[0029] Working principle: When using the assembly fixture for the crimping bolt, first, the crimping hole 10 on the circuit board 9 is sleeved on the outer side of the first positioning post 6, and then the through-hole bolt 8 is sleeved on the outer side of the second positioning post 7. Since the central axes of the first positioning post 6 and the second positioning post 7 coincide with each other, the centers of the crimping hole 10 and the through-hole bolt 8 coincide with each other. Therefore, without fixing the circuit board 9, the center of the crimping hole 10 on the circuit board 9 can also coincide with the center of the through-hole bolt 8, thus improving the working efficiency.

[0030] Then start the air cylinder 14 to drive the pressure column 15 to move downward, and then the pressure column 15 pushes the through-hole bolt 8 and the first positioning post 6 to move downward at the same time. Under the positioning of the first positioning post 6, the position of the crimping hole 10 remains unchanged all the time, so that the bottom of the through-hole bolt 8 can be accurately crimped with the crimping hole 10. At the same time, the spring 5 is compressed. When the air cylinder 14 drives the pressure column 15 to move upward and reset, the elastic force generated by the spring 5 pushes up the through-hole bolt 8 and the circuit board 9 through the first positioning post 6, so that it is convenient to take the circuit board 9 off the top of the crimping base 1.

[0031] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An assembly fixture for crimping bolts, comprising a crimping base (1), characterized in that: A positioning groove (2) is provided at the top of the crimping base (1), a circular plate (3) is fixed at the bottom of the positioning groove (2) by means of screws (4), a spring (5) is welded at the top of the circular plate (3), a first positioning column (6) is welded at the top of the spring (5), a second positioning column (7) is fixed at the center of the top of the first positioning column (6), a through-hole bolt (8) is embedded on the outer side of the second positioning column (7), the bottom of the through-hole bolt (8) and the top of the first positioning column (6) are in contact with each other, a circuit board (9) is provided at the top of the crimping base (1), a crimping hole (10) is provided on the circuit board (9), the upper end of the first positioning column (6) passes through the inside of the crimping hole (10), and a pressing mechanism is provided at the top of the crimping base (1).

2. The assembly fixture for crimping bolts according to claim 1, characterized in that: The pressing mechanism comprises a U-shaped frame (13), the U-shaped frame (13) is fixed on the top of the crimping base (1), a cylinder (14) is fixed through the top of the U-shaped frame (13), a pressing column (15) is fixed at the lower end of the cylinder (14), and the pressing column (15) is located directly above the through-hole bolt (8).

3. The assembly fixture for crimping bolts according to claim 1, characterized in that: A second through hole (12) is formed in the middle of the second positioning column (7), a first through hole (11) is formed in the middle of the first positioning column (6), and central axes of the first through hole (11), the second through hole (12) and the screw (4) coincide with each other.

4. The assembly fixture for crimping bolts according to claim 1, characterized in that: The screw (4) is threadedly connected to the circular plate (3) and the crimping base (1).

5. The assembly fixture for crimping bolts according to claim 1, characterized in that: The diameter of the bottom of the through-hole bolt (8) is smaller than the diameter of the crimping hole (10), and the diameter of the top of the through-hole bolt (8) is larger than the diameter of the crimping hole (10) by 1 mm.

6. The assembly fixture for crimping bolts according to claim 1, characterized in that: The central axes of the positioning groove (2), the first positioning column (6), the second positioning column (7), the through-hole bolt (8) and the crimping hole (10) coincide with each other, and the outer side of the first positioning column (6) and the inner side of the positioning groove (2) are in contact with each other, and the outer side of the first positioning column (6) and the inner side of the crimping hole (10) are in contact with each other, and the outer side of the second positioning column (7) and the inner side of the through-hole bolt (8) are in contact with each other, and the diameter of the crimping hole (10) and the diameter of the positioning groove (2) coincide with each other.

Images