Welding tool of circuit board for dental light curing machine

Abstract

The utility model discloses a welding tool of a circuit board for a dental light curing machine. The welding tool comprises a tool body, the circuit board for the dental light curing machine comprises a main circuit board, a charging board and a flexible connection circuit board, one end of the flexible connection circuit board is suitable for being connected with the main circuit board, and the other end of the flexible connection circuit board is suitable for being connected with the charging board; the tool body is provided with a first placement groove, a second placement groove, a first limiting frame assembly and a second limiting frame assembly, the first placement groove and the second placement groove are both arranged on the tool body, a cavity of the first placement groove is matched with the main circuit board, and a cavity of the second placement groove is matched with the charging panel; the first limiting frame assembly comprises a first installation part and a first limiting check block, the first installation part and the first limiting check block are integrally arranged, a part needing to be welded can be well positioned, it is ensured that the part is kept in a stable state in the welding process, and therefore the welding quality is improved.

Description

Technical Field

[0001] This utility model relates to a welding fixture for a circuit board used in a dental light-curing machine, belonging to the technical field of welding fixture equipment. Background Technology

[0002] In the production process of dental light-curing machines, one step is the soldering of circuit board assemblies. These assemblies typically consist of a main circuit board, a charging board, and a flexible connecting circuit board. Due to the bendable nature of the flexible circuit board, traditional soldering fixtures often clamp the main circuit board and the charging board, and then the operator performs the soldering operation using a handheld soldering gun and the flexible connecting circuit board. A search revealed a Chinese patent with publication number CN214867854U that discloses a circuit board soldering fixture. In this patent, rotating the two turntables counterclockwise causes the rotating rod to horizontally separate the two fixed plates, leaving sufficient space to place the circuit board. Pulling the lever of the vertical clamping assembly upwards raises the clamping plate, placing the circuit board horizontally on the top plate of the support base, ensuring its bottom contacts the two limiting plates and is positioned between the two fixed plates. Releasing the lever causes the elastic element to spring back, pushing the clamping plate downwards, clamping the upper and lower surfaces of the circuit board together with the limiting plates, ensuring vertical stability. Rotating the two turntables clockwise pushes the rotating rod to move the fixed plate towards the circuit board until the buffer pad contacts the edges of the circuit board, allowing for soldering between the two circuit boards. However, this patent makes it difficult to effectively position flexible circuit boards in a bent state, which can easily lead to positional displacement during welding and affect the accuracy of the solder joints. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a welding fixture for circuit boards of dental light curing machines. It can effectively position the parts to be welded and ensure that they remain stable during the welding process, thereby improving the welding quality.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a welding fixture for a circuit board used in a dental light-curing machine, comprising:

[0005] Tooling body;

[0006] The circuit board for a dental light-curing machine includes a main circuit board, a charging board, and a flexible connection circuit board. One end of the flexible connection circuit board is adapted to connect to the main circuit board, and the other end of the flexible connection circuit board is adapted to connect to the charging board.

[0007] The tooling body is provided with a first placement slot, a second placement slot, a first limiting frame assembly, and a second limiting frame assembly. The first placement slot and the second placement slot are both provided on the tooling body. The cavity of the first placement slot is adapted to the main circuit board, and the cavity of the second placement slot is adapted to the charging board.

[0008] The first limiting frame assembly includes a first mounting component and a first limiting block, which are integrally formed. The second limiting frame assembly includes a second mounting component and a second limiting block, which are integrally formed. Both the first limiting block and the second limiting block are bending structures adapted to the flexible connection circuit board.

[0009] The tooling body is provided with a first mounting hole and a second mounting hole. The first mounting hole and the second mounting hole are arranged opposite to each other. The first limiting block is installed in the first mounting hole through the first mounting member, and the second limiting block is installed in the second mounting hole through the second mounting member. The first limiting block and the second limiting block are adapted to form a limiting groove that restricts the flexible connection circuit board after being installed in place.

[0010] Furthermore, in order to prevent the flexible connection circuit board from detaching from the limiting groove, a limiting baffle is rotatably installed on the tooling body. The limiting baffle is installed on the tooling body through a third mounting component. The limiting baffle is adapted to cover the limiting groove when the flexible connection circuit board is installed in place.

[0011] Furthermore, in order to ensure the main circuit board is stably positioned, the limiting groove is provided with at least one first positioning post, and the flexible connecting circuit board is provided with at least one first positioning hole that is adapted to the first positioning post. The height of the first positioning post is equal to the height of the first limiting block and the second limiting block installed in place.

[0012] Furthermore, the first placement groove is provided with two first positioning bosses and a second positioning boss, the first positioning boss is provided with a second positioning post, and the second positioning boss is provided with at least one third positioning post.

[0013] The second positioning post and the third positioning post are adapted to be inserted into the second positioning hole and the third positioning hole on the main circuit board, thereby confining the main circuit board within the first placement slot;

[0014] The heights of the second and third positioning posts are both greater than the thickness of the main circuit board.

[0015] Furthermore, to facilitate the retrieval of the main circuit board, a third positioning boss is provided in the first placement slot. The third positioning boss is a strip-shaped structure. The third positioning boss is perpendicularly connected to the second positioning boss and its top surface is on the same plane. The third positioning boss extends along the length direction of the first placement slot and divides the side area of ​​the first placement slot into two symmetrically arranged first retrieval slots.

[0016] Furthermore, to ensure the stable positioning of the charging board, the second placement groove is provided with two fourth positioning bosses and a fifth positioning boss. The fifth positioning boss is provided with a fourth positioning post. The fourth positioning post is adapted to be inserted into the fourth positioning hole on the charging board, thereby confining the charging board within the second placement groove. The fourth positioning post is higher than the thickness of the charging board.

[0017] Furthermore, to facilitate the retrieval of the charging plate, the fifth positioning boss extends along the length direction of the second placement groove and divides the side area of ​​the second placement groove into two symmetrically arranged second retrieval grooves.

[0018] Furthermore, to prevent the tooling body from moving during the welding process, the bottom of the tooling body is provided with anti-slip texture.

[0019] After adopting the above technical solution, this utility model has the following beneficial effects:

[0020] In this utility model, the tooling body is placed stably on the worktable, and the first limiting block and the second limiting block are inserted through the first mounting hole and the second mounting hole respectively to form a limiting groove that adapts to the shape of the flexible circuit board.

[0021] Place the main circuit board into the first placement slot, align its second and third positioning holes with the second and third positioning posts in the slot, and insert them to ensure that it completely fits the bottom of the first placement slot.

[0022] Place the charging board into the second placement slot, and insert the fourth positioning hole into the fourth positioning post to fix it, ensuring that the charging board is also completely in contact with the bottom of the second placement slot.

[0023] Place the flexible connection circuit board into the limiting groove and lay it along the bending path of the limiting groove. Press the flexible circuit board so that its first positioning hole is inserted into the first positioning post in the limiting groove, so that one end of the flexible connection circuit abuts against the pad on the main circuit board and the other end abuts against the pad on the charging board. After placing the flexible connection circuit, rotate the limiting baffle to cover the top of the limiting groove and lock the flexible circuit board. After confirming that all components are not loose, perform the welding operation.

[0024] After welding is completed, open the limit baffle, lift the main circuit board and charging board through the first and second pick-up slots, and take out the welded dental light curing machine circuit board after it is separated from the positioning post. Attached Figure Description

[0025] Figure 1 This utility model relates to a three-dimensional welding fixture for a dental light-curing machine circuit board. Figure 1 ;

[0026] Figure 2This utility model relates to a three-dimensional welding fixture for a dental light-curing machine circuit board. Figure 2 ;

[0027] Figure 3 This is the front view of the welding fixture for the circuit board of the dental light-curing machine according to this utility model. Figure 1 ;

[0028] Figure 4 This is the front view of the welding fixture for the circuit board of the dental light-curing machine according to this utility model. Figure 2 ;

[0029] Figure 5 This is a full sectional view of the welding fixture for the circuit board of the dental light curing machine of this utility model. Detailed Implementation

[0030] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0031] like Figure 1-5 As shown, a soldering fixture for a dental light-curing machine circuit board includes:

[0032] Tooling body 1;

[0033] The circuit board for the dental light curing machine includes a main circuit board 21, a charging board 22 and a flexible connection circuit board 23. One end of the flexible connection circuit board 23 is adapted to connect to the main circuit board 21, and the other end of the flexible connection circuit board 23 is adapted to connect to the charging board 22.

[0034] The tooling body 1 is provided with a first placement groove 11, a second placement groove 12, a first limiting frame assembly and a second limiting frame assembly. The first placement groove 11 and the second placement groove 12 are both provided on the tooling body 1. The cavity of the first placement groove 11 is adapted to the main circuit board 21, and the cavity of the second placement groove 12 is adapted to the charging board 22.

[0035] The first limiting frame assembly includes a first mounting component 311 and a first limiting block 312, which are integrally formed. The second limiting frame assembly includes a second mounting component and a second limiting block 321, which are integrally formed. Both the first limiting block 312 and the second limiting block 321 are bent structures adapted to the flexible connection circuit board 23.

[0036] The tooling body 1 is provided with a first mounting hole 41 and a second mounting hole 42. The first mounting hole 41 and the second mounting hole 42 are arranged opposite to each other. The first limiting block 312 is installed in the first mounting hole 41 through the first mounting member 311, and the second limiting block 321 is installed in the second mounting hole 42 through the second mounting member. The first limiting block 312 and the second limiting block 321 are adapted to form a limiting groove 33 for limiting the flexible connection circuit board 23 after being installed in place.

[0037] Specifically, such as Figure 1-4 As shown, a limiting baffle 51 is also rotatably installed on the tooling body 1. The limiting baffle 51 is installed on the tooling body 1 through a third mounting member 52. The limiting baffle 51 is adapted to cover the limiting groove 33 when the flexible connection circuit board 23 is installed in place.

[0038] Specifically, such as Figure 1-4 As shown, the limiting groove 33 is provided with at least one first positioning post 331, and the flexible connection circuit board 23 is provided with at least one first positioning hole 231 that is adapted to the first positioning post 331. The height of the first positioning post 331 is equal to the height of the first limiting block 312 and the second limiting block 321 installed in place.

[0039] Specifically, such as Figure 1-4 As shown, the first placement groove 11 is provided with two first positioning bosses 111 and a second positioning boss 112. The first positioning boss 111 is provided with a second positioning post 113, and the second positioning boss 112 is provided with at least one third positioning post 114.

[0040] The second positioning post 113 and the third positioning post 114 are adapted to be inserted into the second positioning hole 211 and the third positioning hole 212 on the main circuit board 21, thereby limiting the main circuit board 21 to be located in the first placement groove 11.

[0041] The heights of the second positioning post 113 and the third positioning post 114 are both greater than the thickness of the main circuit board 21.

[0042] Specifically, such as Figure 1-4 As shown, the first placement groove 11 is also provided with a third positioning boss 115. The third positioning boss 115 is a strip structure. The third positioning boss 115 is perpendicularly connected to the second positioning boss 112 and its top surface is on the same plane. The third positioning boss 115 extends along the length direction of the first placement groove 11 and divides the side area of ​​the first placement groove 11 into two symmetrically arranged first retrieval grooves 116.

[0043] Specifically, such as Figure 1-4As shown, the second placement groove 12 is provided with two fourth positioning bosses 121 and a fifth positioning boss 122. The fifth positioning boss 122 is provided with a fourth positioning post 123. The fourth positioning post 123 is suitable for insertion and cooperation with the fourth positioning hole 213 on the charging board 22, so that the charging board 22 is confined within the second placement groove 12. The fourth positioning post 123 is higher than the thickness of the charging board 22.

[0044] Specifically, such as Figure 1-4 As shown, the fifth positioning boss 122 extends along the length of the second placement groove 12 and divides the side area of ​​the second placement groove 12 into two symmetrically arranged second retrieval grooves 124.

[0045] Specifically, the bottom of the tool body 1 is provided with anti-slip texture.

[0046] In this embodiment, the tooling body 1 is placed stably on the workbench, and the first limiting block 312 and the second limiting block 322 are inserted through the first mounting hole 41 and the second mounting hole 42 respectively to form a limiting groove 33 that is adapted to the shape of the flexible circuit board.

[0047] Place the main circuit board 21 into the first placement slot 11, aligning its second positioning hole 211 and third positioning hole 212 with the second positioning post 113 and third positioning post 114 in the slot and inserting them to ensure that it completely fits the bottom of the first placement slot 11.

[0048] Place the charging plate 22 into the second placement slot 12, and insert and fix the fourth positioning hole 213 and the fourth positioning post 123 to ensure that the charging plate 22 is also completely attached to the bottom of the second placement slot 12.

[0049] Place the flexible connection circuit board 23 into the limiting groove 33 and lay it along the bending path of the limiting groove 33. Press the flexible circuit board so that its first positioning hole 231 is inserted into the first positioning post 331 in the limiting groove 33, so that one end of the flexible connection circuit abuts against the pad on the main circuit board 21 and the other end abuts against the pad on the charging board 22. After placing the flexible connection circuit, rotate the limiting baffle 51 to cover the top of the limiting groove 33 and lock the flexible circuit board. After confirming that all components are not loose, perform the welding operation.

[0050] After welding is completed, open the limiting baffle 51, lift the main circuit board 21 and charging board 22 through the first picking slot 116 and the second picking slot 124, and take out the welded dental light curing machine circuit board after it is separated from the positioning post.

[0051] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A soldering fixture for a circuit board used in a dental light-curing machine, characterized in that, include: Tooling body (1); The circuit board for a dental light curing machine includes a main circuit board (21), a charging board (22), and a flexible connection circuit board (23). One end of the flexible connection circuit board (23) is adapted to connect to the main circuit board (21), and the other end of the flexible connection circuit board (23) is adapted to connect to the charging board (22). The tooling body (1) is provided with a first placement slot (11), a second placement slot (12), a first limiting frame assembly and a second limiting frame assembly. The first placement slot (11) and the second placement slot (12) are both provided on the tooling body (1). The cavity of the first placement slot (11) is adapted to the main circuit board (21), and the cavity of the second placement slot (12) is adapted to the charging board (22). The first limiting frame assembly includes a first mounting member (311) and a first limiting block (312), the first mounting member (311) and the first limiting block (312) are integrally formed. The second limiting frame assembly includes a second mounting member and a second limiting block (321), the second mounting member and the second limiting block (321) are integrally formed. The first limiting block (312) and the second limiting block (321) are both bending structures adapted to the flexible connecting circuit board (23). The tooling body (1) is provided with a first mounting hole (41) and a second mounting hole (42). The first mounting hole (41) and the second mounting hole (42) are arranged opposite to each other. The first limiting block (312) is installed in the first mounting hole (41) through the first mounting member (311), and the second limiting block (321) is installed in the second mounting hole (42) through the second mounting member. The first limiting block (312) and the second limiting block (321) are adapted to form a limiting groove (33) that restricts the flexible connection circuit board (23) after being installed in place.

2. The welding fixture for the circuit board of a dental light-curing machine according to claim 1, characterized in that: A limiting baffle (51) is also rotatably installed on the tooling body (1). The limiting baffle (51) is installed on the tooling body (1) by a third mounting component (52). The limiting baffle (51) is adapted to cover the limiting groove (33) when the flexible connection circuit board (23) is installed in place.

3. The welding fixture for the circuit board of a dental light-curing machine according to claim 2, characterized in that: The limiting groove (33) is provided with at least one first positioning post (331), and the flexible connecting circuit board (23) is provided with at least one first positioning hole (231) that is adapted to the first positioning post (331). The height of the first positioning post (331) is equal to the height of the first limiting block (312) and the second limiting block (321) installed in place.

4. The welding fixture for a dental light-curing machine circuit board according to claim 1, characterized in that: The first placement groove (11) is provided with two first positioning bosses (111) and a second positioning boss (112). The first positioning boss (111) is provided with a second positioning post (113), and the second positioning boss (112) is provided with at least one third positioning post (114). The second positioning post (113) and the third positioning post (114) are adapted to be inserted into the second positioning hole (211) and the third positioning hole (212) on the main circuit board (21), thereby confining the main circuit board (21) within the first placement slot (11); The heights of the second positioning post (113) and the third positioning post (114) are both higher than the thickness of the main circuit board (21).

5. The welding fixture for a dental light-curing machine circuit board according to claim 4, characterized in that: The first placement groove (11) is also provided with a third positioning boss (115). The third positioning boss (115) is a strip structure. The third positioning boss (115) is perpendicularly connected to the second positioning boss (112) and its top surface is on the same plane. The third positioning boss (115) extends along the length direction of the first placement groove (11) and divides the side area of ​​the first placement groove (11) into two symmetrically arranged first retrieval grooves (116).

6. The welding fixture for a dental light-curing machine circuit board according to claim 1, characterized in that: The second placement groove (12) is provided with two fourth positioning bosses (121) and a fifth positioning boss (122). The fifth positioning boss (122) is provided with a fourth positioning post (123). The fourth positioning post (123) is adapted to be inserted into the fourth positioning hole (213) on the charging plate (22), so that the charging plate (22) is confined within the second placement groove (12). The fourth positioning post (123) is higher than the thickness of the charging plate (22).

7. The welding fixture for a dental light-curing machine circuit board according to claim 6, characterized in that: The fifth positioning boss (122) extends along the length of the second placement groove (12) and divides the side area of ​​the second placement groove (12) into two symmetrically arranged second retrieval grooves (124).

8. The welding fixture for a dental light-curing machine circuit board according to claim 1, characterized in that: The bottom of the tool body (1) is provided with anti-slip texture.

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