Welding device for immersion gold PCBA (Printed Circuit Board Assembly) processing

Abstract

The utility model discloses a welding device for immersion gold PCBA processing, and particularly relates to the immersion gold PCBA processing field, the welding device comprises a work bench, the rear side of the top of the work bench is fixedly connected with a support, the top of the support is slidably connected with a first driving slide block, the bottom of the first driving slide block is fixedly connected with a fixed slide rail, and the fixed slide rail is fixedly connected with a second driving slide block. A second driving sliding block is arranged in the middle of the fixed sliding rail in a sliding mode, and a welding gun is fixedly connected to one side of the second driving sliding block. Movement of the circuit board can be limited through the arranged limiting baffle, the movement stability of the circuit board placed on the top of the machining table can be improved through the balls, the movement smoothness of the circuit board is improved, and the situation that friction is generated between the circuit board and the surface of the machining table, and consequently the surface of the circuit board is damaged due to immersion gold is avoided; and an air pump is started to control an adsorption strip groove to generate suction force, so that the fitting strength of the circuit board and the limiting baffle plate can be improved, and the limiting effect of the circuit board is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of immersion gold PCBA processing, and more specifically, to a welding device used for immersion gold PCBA processing. Background Art

[0002] PCBA is the abbreviation of the English name of printed circuit board, also known as printed circuit board, printed circuit board, is an important electronic component and the support of electronic components. The circuit board is mainly composed of a substrate and various electrical components welded thereon. Immersion gold PCBA is a circuit board made by the immersion gold process. Immersion gold is gold plating on it. Gold can effectively block copper metal and air to prevent oxidation, so immersion gold is a surface anti-oxidation treatment method. It is a layer of gold covered on the surface of copper through a chemical reaction, also called gold. When processing the circuit board, it is necessary to weld wires on the surface of the circuit board, so a welding device is required.

[0003] In the process of using the existing technology, the wires and circuit boards are manually welded, which has the risk of high temperature burns. At the same time, the wires need to be cut by tools, and the plastic sleeves at the ends of the wires need to be removed to expose the internal copper wires for welding. There is room for improvement.

[0004] The Chinese patent with patent application number CN202322139550.9 discloses a circuit board welding device. The utility model makes it easy to fix the circuit board through the structural design of the fixing mechanism and the welding mechanism, and can automatically weld the wire and the circuit board to prevent the risk of burns caused by manual welding, speed up the work efficiency, and improve the safety of the device. The structural design of the cutting mechanism, L-shaped rod, arc knife and fixed knife seat makes it easy to cut the wire and facilitate the subsequent welding of the wire;

[0005] Then, combined with the drawings in its specification, it can be seen that by placing the circuit board on the positioning plate and using the spring to drive the slider to clamp and fix the two sides of the circuit board, the circuit board can be clamped and fixed. When the circuit board is placed on the positioning plate and moved, it is easy to cause friction between the bottom wall of the circuit board and the positioning plate, affecting the gold immersion effect on the surface of the circuit board and affecting the use effect. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a welding device for immersion gold PCBA processing to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding device for immersion gold PCBA processing, comprising a workbench, a bracket is fixedly connected to the top rear side of the workbench, a first driving slider is slidably connected to the top of the bracket, a fixed slide rail is fixedly connected to the bottom of the first driving slider, a second driving slider is slidably arranged in the middle of the fixed slide rail, and a welding gun is fixedly connected to one side of the second driving slider;

[0008] The top of the workbench is fixedly connected to a processing table, and movable clamps are symmetrically arranged on both sides of the top of the processing table. Protective pads are arranged on opposite sides of the two movable clamps, and a plurality of balls are arranged on the top of the processing table;

[0009] A limit baffle is fixedly connected to the rear side of the top of the processing table, an air pump is arranged on the rear side of the processing table, an adsorption strip groove is arranged on one side of the limit baffle, and drive control mechanisms are symmetrically arranged on both sides of the processing table.

[0010] Preferably, the first driving slider and the fixed slide rail are arranged directly above the top of the processing table, the welding gun is arranged on the top of the processing table, and a controller is arranged on one side of the workbench, and the controller is electrically connected to the first driving slider, the second driving slider and the welding gun.

[0011] Preferably, the output end of the air pump is connected to the inner cavity of the adsorption strip slot, a mesh plate is provided on one side of the opening of the adsorption strip slot, and a plurality of rolling balls are provided at the bottom of the movable clamping plate, and the rolling balls are staggered with each other.

[0012] Preferably, the drive control mechanism includes a drive box fixed to the bottom of the workbench, a first limiting slide groove and a second limiting slide groove are symmetrically opened on both sides of the top of the workbench, and a first fixed slide block and a second fixed slide block are symmetrically fixedly connected to the bottom of the opposite sides of the two movable clamps.

[0013] Preferably, the first fixed slider is arranged in the middle of the first limiting sliding groove, the second fixed slider is arranged in the middle of the second limiting sliding groove, the first fixed slider is adapted to the first limiting sliding groove, and the second fixed slider is adapted to the second limiting sliding groove.

[0014] Preferably, a threaded rod is provided in the middle of the first limiting sliding groove, the threaded rod passes through the first fixed sliding block and is slidably connected to the first fixed sliding block, and a driven gear is provided at one end of the threaded rod.

[0015] Preferably, a dual-shaft motor is arranged in the middle of the driving box, and a transmission gear is connected to the output end of the dual-shaft motor. The transmission gear is located at the bottom of the driven gear and meshes with the driven gear.

[0016] Preferably, a limit slider is provided on the middle threaded sleeve of the threaded rod, and the limit slider is arranged on the side of the first fixed slider away from the processing table. A connecting rod is fixedly connected to the side of the limit slider close to the first fixed slider, one end of the connecting rod passes through the first fixed slider and is fixedly connected to the limit disk, and a spring is provided on the side of the connecting rod close to the limit slider.

[0017] Technical effects and advantages of the utility model:

[0018] 1. The utility model can first limit the movement of the circuit board by setting a limit baffle, and can improve the stability of the circuit board placed on the top of the processing table through the ball bearing, and improve the smoothness of the movement of the circuit board, so as to avoid the friction between the circuit board and the surface of the processing table, resulting in damage to the gold immersion on the surface of the circuit board and affecting the quality of the finished product, and can improve the bonding strength between the circuit board and the limit baffle by starting the air pump to control the suction groove to generate suction, and improve the limiting effect of the circuit board;

[0019] 2. The utility model can also control the limit slider to move inside the first limit slide groove by starting the dual-axis motor to control the rotation of the threaded rod, thereby pushing the spring and driving the moving clamping plate to move when the first fixed slider moves, clamping and fixing the circuit board, and through the compression of the spring and the cooperation of the protective pad, the clamping and fixing strength of the circuit board can be improved, and the circuit board can be prevented from being damaged due to excessive compression strength, thereby playing a protective role, and the cooperation of the second fixed slider and the second limit slide groove can improve the stability of the movement of the moving clamping plate;

[0020] In summary, through the mutual influence of the above-mentioned multiple effects, the smoothness of the movement of the circuit board can be improved, and the friction between the circuit board and the surface of the processing table can be avoided, which will cause damage to the gold plating on the surface of the circuit board and affect the quality of the finished product. At the same time, it is convenient to clamp and fix the circuit board and play a protective buffering role. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the workbench of the utility model.

[0023] Figure 3 It is a partial structural schematic diagram of the cross section of the workbench of the utility model.

[0024] Figure 4 It is a schematic diagram of the connection structure of the movable clamping plate and the threaded rod of the utility model.

[0025] Figure 5 For this utility model Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0026] The accompanying drawings are marked as follows: 1. workbench; 2. processing table; 3. bracket; 4. first driving slider; 5. fixed slide rail; 6. second driving slider; 7. welding gun; 8. ball bearing; 9. movable splint; 10. protective pad; 11. limit baffle; 12. air pump; 13. adsorption strip groove; 14. driving box; 15. first limit slide groove; 16. second limit slide groove; 17. first fixed slider; 18. second fixed slider; 19. dual-axis motor; 20. transmission gear; 21. threaded rod; 22. driven gear; 23. limit slider; 24. connecting rod; 25. limit plate; 26. spring; 27. ball bearing. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] As attached Figure 1-5 A welding device for immersion gold PCBA processing shown in the figure comprises a workbench 1, a bracket 3 is fixedly connected to the top rear side of the workbench 1, a first driving slider 4 is slidably connected to the top of the bracket 3, a fixed slide rail 5 is fixedly connected to the bottom of the first driving slider 4, a second driving slider 6 is slidably provided in the middle of the fixed slide rail 5, a welding gun 7 is fixedly connected to one side of the second driving slider 6, the first driving slider 4 is supported by the bracket 3, the fixed slide rail 5 can be driven to move horizontally by the first driving slider 4, the welding gun 7 can be driven to move horizontally by the second driving slider 6, and the welding gun 7 can be used to perform welding processing of connecting wires at any position of the circuit board placed on the top of the processing table 2;

[0029] The top of the workbench 1 is fixedly connected to the processing table 2, and movable clamps 9 are symmetrically arranged on both sides of the top of the processing table 2. The opposite sides of the two movable clamps 9 are provided with protective pads 10. A plurality of balls 8 are arranged on the top of the processing table 2. By controlling the movable clamps 9 to move on the top of the processing table 2, the circuit board placed on the top of the processing table 2 can be clamped and fixed, and the protective pads 10 play a role of buffering and protection. The balls 8 prevent the circuit board from rubbing against the processing table 2, thereby playing a protective role.

[0030] A limit baffle 11 is fixedly connected to the top rear side of the processing table 2, an air pump 12 is arranged on the rear side of the processing table 2, an adsorption strip groove 13 is arranged on one side of the limit baffle 11, and driving control mechanisms are symmetrically arranged on both sides of the processing table 2. The placement position of the circuit board is limited by the limit baffle 11, and suction is generated in the middle of the adsorption strip groove 13 by starting the air pump 12, so that the circuit board and the limit baffle 11 are conveniently fitted, the limit is fixed, and the horizontal movement of the movable splint 9 is conveniently controlled through the driving control mechanism to improve the use effect.

[0031] As attached Figure 1 As shown, the first driving slider 4 and the fixed slide rail 5 are arranged just above the top of the processing table 2, the welding gun 7 is arranged on the top of the processing table 2, and a controller is arranged on one side of the workbench 1. The controller is electrically connected to the first driving slider 4, the second driving slider 6, and the welding gun 7. The first driving slider 4, the second driving slider 6, and the welding gun 7 are started by controlling the controller, so that the position of the welding gun 7 can be easily changed, and welding processing can be performed by the welding gun 7.

[0032] As attached Figure 2 , 3 As shown, the output end of the air pump 12 is connected to the inner cavity of the adsorption groove 13, a mesh plate is provided on one side of the opening of the adsorption groove 13, and a plurality of rolling balls 27 are provided at the bottom of the movable clamping plate 9. The rolling balls 27 and the rolling balls 8 are offset from each other. When the air pump 12 is started, suction is generated in the middle of the adsorption groove 13, so that the circuit board can be limited to one side of the limiting baffle 11, and the circuit board can be limited by the mesh plate, and the stability of the movement of the movable clamping plate 9 can be improved by the rolling balls 27.

[0033] As attached Figure 1-5 As shown, the drive control mechanism includes a drive box 14 fixed to the bottom of the workbench 1, and a first limiting slide groove 15 and a second limiting slide groove 16 are symmetrically provided on both sides of the top of the workbench 1. The bottom of the opposite sides of the two movable clamps 9 are symmetrically fixed with a first fixed slider 17 and a second fixed slider 18. Through the cooperation of the first limiting slide groove 15 and the first fixed slider 17, and the cooperation of the second fixed slider 18 and the second limiting slide groove 16, the movement of the movable clamp 9 can be limited.

[0034] As attached Figure 1-5 As shown, the first fixed slider 17 is arranged in the middle of the first limiting slide groove 15, and the second fixed slider 18 is arranged in the middle of the second limiting slide groove 16. The first fixed slider 17 is adapted to the first limiting slide groove 15, and the second fixed slider 18 is adapted to the second limiting slide groove 16. Through the cooperation between the second fixed slider 18 and the second limiting slide groove 16, the stability of the movement of the movable splint 9 is improved, and through the movement of the first fixed slider 17, the movement of the movable splint 9 can be controlled.

[0035] As attached Figure 2-5As shown, a threaded rod 21 is provided in the middle of the first limiting slide groove 15, the threaded rod 21 passes through the first fixed slider 17 and is slidably connected to the first fixed slider 17, and a driven gear 22 is provided at one end of the threaded rod 21. The driven gear 22 controls the rotation of the threaded rod 21, which can drive the first fixed slider 17 to move in turn.

[0036] As attached Figure 2 , 3 As shown, a dual-axis motor 19 is provided in the middle of the driving box 14, and a transmission gear 20 is connected to the output end of the dual-axis motor 19. The transmission gear 20 is located at the bottom of the driven gear 22 and meshes with the driven gear 22. Starting the dual-axis motor 19 to control the rotation of the transmission gear 20 can drive the driven gear 22 to rotate, thereby playing a role of transmission drive.

[0037] As attached Figure 2-5 As shown, a limit slider 23 is provided on the middle threaded sleeve of the threaded rod 21, and the limit slider 23 is arranged on the side of the first fixed slider 17 away from the processing table 2. The limit slider 23 is fixedly connected to a connecting rod 24 on the side close to the first fixed slider 17. One end of the connecting rod 24 passes through the first fixed slider 17 and is fixedly connected to a limit disk 25. A spring 26 is provided on the side of the connecting rod 24 close to the limit slider 23. The rotation of the threaded rod 21 can control the limit slider 23 to move inside the first limit slide groove 15, thereby squeezing the spring 26, and then pushing the first fixed slider 17, so as to facilitate driving the mobile clamp 9 to clamp and fix the circuit board, and the spring 26 can play a role of clamping and buffering, thereby improving the use effect.

[0038] It is worth noting that the first driving slider 4 and the second driving slider 6, the welding gun 7, and the fixed slide rail 5 are prior art. A mechanism for controlling the up and down movement of the welding gun 7 is provided on one side of the welding gun 7, which is prior art and will not be elaborated in detail.

[0039] Working principle of the utility model: when in use, just place the circuit board on the top of the processing table 2, and use the ball 8 to improve the smoothness of the movement of the circuit board, then make the rear end of the circuit board fit with the limit baffle 11, and start the air pump 12 to make the limit baffle 11 adsorb the circuit board, so as to improve the fitting effect between the circuit board and the limit baffle 11;

[0040] Then start the dual-axis motor 19 to control the two movable clamps 9 in turn to clamp and fix the circuit board. The protective pad 10 and the squeezing of the spring 26 can act as a clamping buffer for the circuit board. Then start the first drive slider 4 and the second drive slider 6 to control the movement of the welding gun 7, and the electric push rod on one side of the welding gun 7 can control the up and down movement of the welding gun 7, so as to facilitate the welding processing on the surface of the circuit board.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A welding device for immersion gold PCBA processing, comprising a workbench (1), characterized in that: A bracket (3) is fixedly connected to the rear side of the top of the workbench (1); a first driving slider (4) is slidably connected to the top of the bracket (3); a fixed slide rail (5) is fixedly connected to the bottom of the first driving slider (4); a second driving slider (6) is slidably provided in the middle of the fixed slide rail (5); a welding gun (7) is fixedly connected to one side of the second driving slider (6); The top of the workbench (1) is fixedly connected to a processing table (2), movable clamping plates (9) are symmetrically arranged on both sides of the top of the processing table (2), and protective pads (10) are arranged on opposite sides of the two movable clamping plates (9), and a plurality of balls (8) are arranged on the top of the processing table (2); The top rear side of the processing table (2) is fixedly connected to a limit baffle (11), the rear side of the processing table (2) is provided with an air pump (12), one side of the limit baffle (11) is provided with an adsorption strip groove (13), and drive control mechanisms are symmetrically provided on both sides of the processing table (2).

2. A welding device for immersion gold PCBA processing according to claim 1, characterized in that: The first driving slider (4) and the fixed slide rail (5) are arranged directly above the top of the processing table (2), the welding gun (7) is arranged on the top of the processing table (2), and a controller is arranged on one side of the workbench (1), and the controller is electrically connected to the first driving slider (4), the second driving slider (6) and the welding gun (7).

3. A welding device for immersion gold PCBA processing according to claim 1, characterized in that: The output end of the air pump (12) is connected to the inner cavity of the adsorption strip groove (13), a mesh plate is arranged on one side of the opening of the adsorption strip groove (13), and a plurality of rolling balls (27) are arranged at the bottom of the movable clamping plate (9), and the rolling balls (27) and the rolling balls (8) are staggered with each other.

4. A welding device for immersion gold PCBA processing according to claim 1, characterized in that: The drive control mechanism comprises a drive box (14) fixed to the bottom of the workbench (1), a first limiting slide groove (15) and a second limiting slide groove (16) are symmetrically provided on both sides of the top of the workbench (1), and a first fixed slide block (17) and a second fixed slide block (18) are symmetrically fixedly connected to the bottom of the opposite sides of the two movable clamping plates (9).

5. A welding device for immersion gold PCBA processing according to claim 4, characterized in that: The first fixed slide block (17) is arranged in the middle of the first limiting slide groove (15), and the second fixed slide block (18) is arranged in the middle of the second limiting slide groove (16); the first fixed slide block (17) is adapted to the first limiting slide groove (15), and the second fixed slide block (18) is adapted to the second limiting slide groove (16).

6. A welding device for immersion gold PCBA processing according to claim 4, characterized in that: A threaded rod (21) is arranged in the middle of the first limiting sliding groove (15); the threaded rod (21) passes through the first fixed sliding block (17) and is slidably connected to the first fixed sliding block (17); a driven gear (22) is arranged at one end of the threaded rod (21).

7. A welding device for immersion gold PCBA processing according to claim 4, characterized in that: A dual-shaft motor (19) is disposed in the middle of the driving box (14); an output end of the dual-shaft motor (19) is connected to a transmission gear (20); the transmission gear (20) is located at the bottom of a driven gear (22) and meshes with the driven gear (22).

8. The welding device for immersion gold PCBA processing according to claim 6, characterized in that: A limiting slider (23) is provided on a threaded sleeve in the middle of the threaded rod (21); the limiting slider (23) is arranged on a side of the first fixed slider (17) away from the processing table (2); a connecting rod (24) is fixedly connected to the side of the limiting slider (23) close to the first fixed slider (17); one end of the connecting rod (24) passes through the first fixed slider (17) and is fixedly connected to a limiting disk (25); a spring (26) is sleeved on the side of the connecting rod (24) close to the limiting slider (23).

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