Spot welding machine tool capable of improving uniformity and stability of product

Abstract

The utility model relates to the field of circuit board welding auxiliary devices, in particular to a spot welding machine tool capable of improving uniformity and stability of products, which comprises an integrated welding gun and further comprises a machine table, a positioning assembly and a moving assembly, the positioning assembly and the moving assembly are mounted on the machine table, and the integrated welding gun is mounted on the moving assembly. The moving assembly is used for driving the integrated welding gun to move in the vertical direction and the horizontal direction, and the positioning assembly is used for supporting and limiting a circuit board needing to be welded. The welding method has the effect of improving the stability of a welded product.

Description

Technical Field

[0001] The present application relates to the technical field of circuit board welding auxiliary devices, and in particular to a spot welding machine tooling for improving product uniformity and stability. Background Art

[0002] The connection between electronic components and PCB boards is usually fixed by soldering. The solder bar is melted at the pins of the electronic components by an electric soldering iron. After the tin liquid solidifies, the connection between the electronic components and the PCB board is achieved.

[0003] Normally, workers need to hold a tin bar in one hand and a soldering iron in the other hand to solder electronic components, which places a heavy workload on workers. With the advancement of technology, integrated soldering guns have also appeared on the market. For example, the utility model patent with publication number: CN106392240B discloses an integrated soldering handle, which includes a soldering iron head and a tin feeding tube, which are arranged in parallel. When soldering, only the tin feeding tube needs to be started to bring the tin bar close to the soldering iron head to complete the soldering.

[0004] Although the integrated soldering handle in the related technology facilitates the workers' electric welding of circuit boards to a certain extent, whether the suction cups are full after spot welding and whether the suction cups are evenly distributed are largely related to the workers' techniques, which can easily lead to unstable welding of products (i.e. circuit boards) and uneven pads. Utility Model Content

[0005] In order to improve the stability of products after welding, the present application provides a spot welding machine tooling that improves the uniform stability of products.

[0006] The spot welding machine tooling provided in this application to improve the uniformity and stability of the product adopts the following technical solutions:

[0007] A spot welding machine tooling for improving the uniformity and stability of products includes an integrated welding gun, a machine platform, a positioning component installed on the machine platform, and a moving component. The integrated welding gun is installed on the moving component, the moving component is used to drive the integrated welding gun to move in the vertical and horizontal directions, and the positioning component is used to support and limit the circuit board to be welded.

[0008] By adopting the above technical solution, the circuit board is placed on the positioning component, and the positioning component positions the circuit board. The PLC program controls the operation of the moving component, driving the integrated welding gun to move accurately to different positions of the circuit board, so as to weld the circuit board. The PLC program accurately controls the entire process, reducing the labor burden of the staff, and at the same time reducing the occurrence of unstable product welding and uneven pads caused by the staff themselves.

[0009] Optionally, the positioning assembly includes two support plates spaced apart in the horizontal direction, and limiting grooves are provided on the sides of the two support plates close to each other. An opening is provided on the side of the limiting groove facing away from the machine for insertion at the edge of the circuit board.

[0010] By adopting the above technical solution, the circuit board is placed between the two support plates, the two sides of the circuit board are inserted into the limiting grooves, and the side walls of the limiting grooves limit the circuit board, thereby achieving support and positioning of the circuit board.

[0011] Optionally, the limiting groove is a rectangular groove whose length direction is parallel to the support plate, and limiting blocks are arranged at both ends of the limiting groove, and the limiting blocks can abut against the circuit board.

[0012] By adopting the above technical solution, the two support plates limit the displacement of the circuit board in one direction, and the two limit blocks limit the displacement of the circuit board in another direction, thereby improving the stability of the circuit board during the welding process.

[0013] Optionally, the limiting block can move along the length direction of the limiting groove.

[0014] By adopting the above technical solution, the movable limiting block can make the two limiting blocks approach or move away from each other, thereby limiting the circuit boards of different sizes and improving the application range of the tooling.

[0015] Optionally, the positioning assembly further includes a support frame, the support frame includes two vertical plates arranged corresponding to the support plate, and the support plate is installed above the vertical plate.

[0016] By adopting the above technical solution, the two vertical plates support the support plate from below, which not only facilitates the installation of the support plate, but also separates the support plate from the machine to reduce the friction between the electronic components on the circuit board and the machine.

[0017] Optionally, at least one of the vertical plates is capable of sliding, and sliding the vertical plate can change the distance between the two vertical plates.

[0018] By adopting the above technical solution, the sliding vertical plate can drive the two supporting plates to move closer to or farther away from each other, so that the positioning component can support circuit boards of different sizes.

[0019] Optionally, the moving component includes a linear module and a lifting member, the lifting member is installed on the linear module, the linear module can drive the lifting member to move in a horizontal direction, the integrated welding gun is installed on the lifting member, and the lifting member is used to drive the integrated welding gun to move in a vertical direction.

[0020] By adopting the above technical solution, the linear module drives the lifting member to move, and then drives the integrated welding torch to move. Cooperating with the lifting member to drive the integrated welding torch to lift and lower, the integrated welding torch realizes the welding of the circuit board.

[0021] Optionally, a bottom plate is arranged below the vertical plate, and the bottom plate is slidably connected to the machine table along a direction perpendicular to the moving direction of the lifting member.

[0022] By adopting the above technical solution, the cooperation between the bottom plate and the linear module enables the integrated welding torch to move to any position of the circuit board, realizing the all-round welding of the circuit board.

[0023] In summary, the present application includes the following beneficial technical effects: The moving component is driven by the PLC program to drive the integrated welding to move and lift, thereby accurately controlling the position of the welding torch relative to the circuit board, and ensuring the stability of the integrated welding torch during the welding process, thereby improving the uniformity and stability of the welded product. Description of the Drawings

[0024] Figure 1 is the overall structural schematic diagram of the embodiment of the present application.

[0025] Figure 2 is the structural schematic diagram of the positioning component of the embodiment of the present application.

[0026] Figure 3 is the Figure 2 enlarged view of part A in the embodiment of the present application.

[0027] Reference numerals: 1, machine table; 2, positioning component; 21, support plate; 22, limiting groove; 221, limiting surface; 222, supporting surface; 23, limiting block; 231, limiting portion; 232, connecting portion; 233, connecting hole; 3, support frame; 31, vertical plate; 32, bottom plate; 33, sliding plate; 4, moving component; 41, linear module; 42, lifting member; 43, lead screw; 44, motor; 5, integrated welding torch. Detailed Description of the Embodiment

[0028] The following further elaborates on the present application Figures 1-3 with reference to the attached drawings.

[0029] The embodiment of the present application discloses a spot welding machine tooling for improving the uniformity and stability of products.

[0030] Referring to Figure 1 and Figure 2, the spot welder tooling for improving the uniformity and stability of products includes a machine table 1, a positioning component 2 installed on the machine table 1, a moving component 4 installed on the machine table 1, and an integrated soldering gun 5 installed on the moving component 4 for soldering. The positioning component 2 is used to place the circuit board and limit the circuit board. The moving component 4 is used to drive the integrated soldering gun 5 to automatically move in the vertical and horizontal directions. The moving component 4 is controlled by a PLC program, and the moving component 4 drives the integrated soldering gun 5 to move precisely, improving the uniformity and stability of soldering.

[0031] Referring to Figure 2 and Figure 3 , the positioning component 2 includes two support plates 21, the two support plates 21 are arranged at intervals in the horizontal direction, and elongated limiting grooves 22 are formed on the sides of the support plates 21 facing each other, and the length direction of the limiting grooves 22 is parallel to the support plates 21. The limiting grooves 22 are provided with openings on the side facing away from the ground to facilitate the circuit board to be placed into the limiting grooves 22 from above. The limiting grooves 22 include a limiting surface 221 and a supporting surface 222, and the supporting surface 222 fits with the lower surface of the circuit board to support the circuit board. The limiting surface 221 fits with the side surface of the circuit board perpendicular to its own thickness, and the limiting surfaces 221 on the two support plates 21 limit the movement of the circuit board in the direction perpendicular to the limiting surface 221 of the circuit board, so as to be able to limit the circuit board and improve the stability of the circuit board during spot welding.

[0032] Referring to Figure 2 and Figure 3 , the positioning component 2 further includes two groups of limiting blocks 23 corresponding to the support plates 21, and the two limiting blocks 23 are arranged at intervals in the length direction of the limiting grooves 22. The limiting blocks 23 include a limiting portion 231, the limiting portion 231 is located in the limiting grooves 22, the two limiting portions 231 are arranged at intervals in the limiting grooves 22, and the circuit board is located between the two limiting portions 231 and abuts against the circuit board, so as to be able to limit the displacement of the circuit board in the length direction of the limiting grooves 22. The limiting portion 231 cooperates with the limiting surface 221 to realize the multi-directional limitation of the circuit board, improving the stability of the positioning of the circuit board.

[0033] Referring to Figure 2 and Figure 3 , the limiting block 23 further includes a connecting portion 232, the connecting portion 232 is integrally formed with the limiting portion 231, and the connecting portion 232 is located outside the limiting grooves 22 to reduce the interference between the connecting portion 232 and the circuit board. A connecting hole 233 is formed on the connecting portion 232, a screw is inserted into the connecting hole 233, a threaded hole is correspondingly arranged on the support plate 21, and the screw passes through the support plate 21 and is threadedly connected to the threaded hole, and the screw abuts against the connecting portion 232 to fix the limiting block 23.

[0034] Referring to Figure 2 and Figure 3, a plurality of threaded holes are arranged at intervals along the length direction of the limiting groove 22, so that the screw can fix the limiting block 23 at different positions to adapt to the limitation of circuit boards of different sizes. The connecting hole 233 is an oblong hole, the length direction of the oblong hole is parallel to the length direction of the limiting groove 22, and the length of the oblong hole is not less than the gap between two threaded holes, so that a plurality of screws can pass through the connecting hole 233, improving the stability after the limiting block 23 is fixed. At the same time, since the screw can move in the threaded hole, the position of the limiting block 23 can be finely adjusted, improving the limiting effect of the limiting block 23 on the circuit board.

[0035] Referring to Figure 1 and Figure 2 , the positioning assembly 2 further includes a support frame 3. The support frame 3 includes two vertically arranged plates 31 arranged in parallel at intervals, and the plates 31 are vertically arranged and correspond to the two support plates 21. The support plates 21 are fixedly connected to the plates 31 by screws. Through the plates 31, the distance between the machine table 1 and the support plates 21 is increased, thereby reducing the occurrence of friction between the electronic components or wire harnesses on the circuit board and the machine table 1.

[0036] Referring to Figure 1 and Figure 2 , the support frame 3 further includes a bottom plate 32. The bottom plate 32 is arranged parallel to the machine table 1, and the two plates 31 are perpendicularly connected to the bottom plate 32. The overall structural strength of the support frame 3 is improved, and at the same time, the installation of the plates 31 is facilitated.

[0037] Referring to Figure 1 and Figure 2 , at least one of the plates 31 is slidably connected to the bottom plate 32 in a direction perpendicular to itself. Sliding the plate 31 can expand or reduce the vertical distance between the two plates 31, so that the two support plates 21 approach or move away from each other to adapt to the limitation of circuit boards of different sizes.

[0038] Referring to Figure 1 and Figure 2 , a sliding plate 33 is arranged between the bottom plate 32 and the plate 31. A wedge-shaped block is arranged on the side of the sliding plate 33 close to the bottom plate 32, and a dovetail groove is correspondingly formed on the bottom plate 32. The wedge-shaped block is slidably fitted in the dovetail groove. The plate 31 is fixedly connected to the sliding plate 33 to achieve the sliding connection between the plate 31 and the bottom plate 32. The sliding plate 33 is also locked by screws, which is the same as the locking principle of the limiting block 23 and will not be elaborated here.

[0039] Referring to Figure 1 and Figure 2, the moving component 4 includes a linear module 41 and a lifting member 42. The linear module 41 is horizontally arranged, the lifting member 42 is fixedly connected to the slider of the linear module 41, and the integrated welding torch 5 is fixedly connected to the lifting member 42. The lifting member 42 is used to drive the integrated welding torch 5 to lift and lower. Here, the lifting member 42 is a cylinder. The welding of different positions of the circuit board is realized through the linear module 41 and the lifting member 42.

[0040] Referring to Figure 1 and Figure 2 , the bottom plate 32 is slidably connected to the machine table 1 along a direction perpendicular to the linear module 41. The bottom plate 32 cooperates with the linear module 41 to realize all-round spot welding on the circuit board. Here, the bottom plate 32 is driven by a lead screw 43 and a motor 44 and is controlled by a PLC program.

[0041] The implementation principle of the spot welding machine tooling for improving the uniform stability of the product in the embodiment of the present application is: precisely controlling the movement of the linear module 41 and the lead screw 43 through the PLC program, so as to adjust the position of the integrated welding torch 5 relative to the circuit board, make the solder joint position more accurate and uniform, and improve the stability of the solder joint.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A spot welding machine tool for improving product uniformity and stability, comprising an integrated welding gun (5), characterized in that: The invention also comprises a machine platform (1), a positioning component (2) and a moving component (4) mounted on the machine platform (1); the integrated welding gun (5) is mounted on the moving component (4); the moving component (4) is used to drive the integrated welding gun (5) to move in the vertical and horizontal directions; and the positioning component (2) is used to support and limit the position of a circuit board to be welded.

2. The spot welding machine tool for improving product uniformity and stability according to claim 1, characterized in that: The positioning assembly (2) comprises two support plates (21) arranged at intervals in the horizontal direction, and limiting grooves (22) are provided on the sides of the two support plates (21) close to each other, and an opening is provided on the side of the limiting groove (22) facing away from the machine platform (1) for insertion of the edge of the circuit board.

3. The spot welding machine tool for improving product uniformity and stability according to claim 2, characterized in that: The limiting groove (22) is a rectangular groove whose length direction is parallel to the support plate (21), and limiting blocks (23) are arranged at both ends of the limiting groove (22), and the limiting blocks (23) can abut against the circuit board.

4. The spot welding machine tool for improving product uniformity and stability according to claim 3 is characterized in that: The limiting block (23) can move along the length direction of the limiting groove (22).

5. The spot welding machine tool for improving product uniformity and stability according to claim 2, characterized in that: The positioning assembly (2) further comprises a support frame (3), wherein the support frame (3) comprises two vertical plates (31) arranged corresponding to the support plates (21), and the support plates (21) are installed above the vertical plates (31).

6. The spot welding machine tool for improving product uniformity and stability according to claim 5, characterized in that: At least one of the vertical plates (31) is capable of sliding, and sliding the vertical plate (31) can change the distance between the two vertical plates (31).

7. The spot welding machine tool for improving product uniformity and stability according to claim 5 or 6, characterized in that: The moving assembly (4) comprises a linear module (41) and a lifting member (42), wherein the lifting member (42) is mounted on the linear module (41), and the linear module (41) is capable of driving the lifting member (42) to move in a horizontal direction, and the integrated welding gun (5) is mounted on the lifting member (42), and the lifting member (42) is used to drive the integrated welding gun (5) to move in a vertical direction.

8. The spot welding machine tool for improving product uniformity and stability according to claim 7, characterized in that: A bottom plate (32) is provided below the vertical plate (31), and the bottom plate (32) is slidably connected to the machine platform (1) in a direction perpendicular to the moving direction of the lifting member (42).

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