Circuit board welding device

Abstract

The utility model relates to the technical field of electronic equipment manufacturing, in particular to a circuit board welding device, which comprises a base, a welding table, a welding table and a welding table, the bracket is mounted on the base; the bottom of the lifting platform is provided with a sliding block matched and connected with the sliding groove of the base, and the side, facing the support, of the lifting platform is of an open structure; the screw is arranged in the lifting table, and the top of the screw penetrates out of the lifting table; a threaded hole is formed in one side of the rear portion of the mechanical arm and connected with the screw in the lifting table in a matched mode, a cavity with an opening in one end is formed in one side of the front portion of the mechanical arm, and a front-back limiting groove is formed in the side wall of the cavity; the extension rod is sleeved in the cavity of the mechanical arm; the clamping part is arranged at the end, away from the mechanical arm, of the extension rod, and an air duct of the hot air gun is placed in a through structure of the clamping part. The utility model has the advantages that the welding spot is uniformly heated, the operation efficiency and the welding quality are improved, the orientation of the hot air gun is regulated so as to adapt to the welding spot requirements of different positions on a circuit board, and the risk of damaging elements on the board is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment manufacturing, in particular to a circuit board welding device. Background Art

[0002] Soldering and removing electronic components from circuit boards is a common technical operation in modern electronic device manufacturing. To ensure efficient soldering or removal, a hot air gun is commonly used to heat the circuit board and melt the solder. However, in practice, especially when working with large, multi-layered, and thick circuit boards, uniform and effective heating using a hot air gun alone is often difficult to achieve. A new type of circuit board soldering auxiliary equipment is urgently needed to address these technical issues. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a circuit board welding device for more evenly transferring heat to the soldering points of multi-layer thick circuit boards, thereby improving work efficiency and welding effect and reducing the risk of damage to components on the circuit board during welding.

[0004] The top of the lifting platform is connected with the lifting platform by the spring, and the bottom of the screw is connected with the bottom of the lifting platform by a bearing.

[0005] Preferably, the circuit board welding device described in the present invention also includes other technical features, wherein the bracket is a frame structure, a plurality of adjustable support rods are provided in the middle of the bracket, connecting blocks are provided at both ends of the adjustable support rods, the connecting blocks are slidably connected to the frame structure, a tightening screw is provided on the connecting block, and a plurality of support bodies are provided on the support rods, and the support bodies are used to support the circuit board.

[0006] Preferably, the circuit board welding device described in the present invention also includes other technical features, wherein the top of the screw extends out of the lifting platform and is connected to the handwheel.

[0007] Preferably, the circuit board welding device described in the present invention also includes other technical features, wherein a second screw is provided in the slide groove, the second screw passes through the threaded hole opened in the slider and is threadedly engaged, and the second screw passes through one side of the base and is provided with a twist cover at the end.

[0008] Preferably, the circuit board welding device described in the present invention also includes other technical features, wherein the base is provided with a through air-avoiding structure in the vertical direction, and an electric heating plate is provided in the air-avoiding structure.

[0009] Compared with the prior art, the utility model has the following advantages:

[0010] 1. Through the heating mechanism of combining hot air gun and electric heating plate, uniform heating of the solder joints of multi-layer thick circuit boards is achieved, thereby improving work efficiency and welding quality.

[0011] 2. Through the innovative combination of the lifting platform and the robotic arm, the height and horizontal position (xyz axis) of the hot air gun can be precisely controlled to meet the requirements of solder joints at different positions on the circuit board.

[0012] 3. The bracket design effectively prevents direct contact between the circuit board and the high-temperature area, reducing the risk of damage to the components on the board. It also reinforces the circuit board to prevent it from deformation during heating.

[0013] 4. The device of this solution has the advantages of low cost, small size, easy operation, etc. It is not restricted by the use environment and can be used with various types of hot air guns and electric heating plates according to actual needs, providing higher flexibility and compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 , is a three-dimensional diagram of the utility model;

[0015] Figure 2 , is a top view of the utility model;

[0016] Figure 3 , is a three-dimensional diagram of the present invention from another angle;

[0017] Figure 4 , is a right perspective view of the utility model;

[0018] Figure 5 , is a three-dimensional diagram of the mechanical arm and the hot air gun of the utility model;

[0019] Figure 6 , is a three-dimensional diagram of the base and lifting platform of the utility model;

[0020] In the figure: 1. base; 101. air avoidance structure; 2. electric heating plate; 3. bracket; 301. frame structure; 302. support rod; 303. connecting block; 304. tightening screw; 305. support body; 4. hot air gun; 5. robotic arm; 501. front part of robotic arm; 5011. limiting groove; 5021. limiting block; 502. extension rod; 503. clamping part; 505. clamping screw; 6. lifting platform; 601. open structure; 602. screw; 603 rear part of robotic arm; 604. handwheel; 7. second screw; 8. twist cover; 9. slider; 10. slide groove. DETAILED DESCRIPTION

[0021] In order to make the purpose, principle and structure of the present invention more clear, it is further described below with reference to the accompanying drawings and specific embodiments.

[0022] See also Figure 1-6 The utility model provides a circuit board welding device, comprising: a base 1, an electric heating plate 2, a bracket 3, a hot air gun 4, a mechanical arm 5 and a lifting platform 6.

[0023] An air avoidance structure 101 is provided in the vertical direction in the middle of the base 1, and the electric heating plate 2 is prevented from being in the air avoidance structure 101. A slide groove 10 is also provided on one side of the base 1, and a second screw 7 is provided in the slide groove 10. The second screw 7 passes through the base 1 and a twist cover 8 is provided at the top of the passing side.

[0024] The bracket 3 is arranged on the base 1, and the bracket 3 is composed of several frame structures 301. Several connecting blocks 303 are also slidably sleeved on the frame structure 301. The two ends of several support rods 302 are fixedly connected to the connecting blocks 303 respectively. Several support bodies 305 are also provided on the support rods 302 for supporting the electrical components being processed.

[0025] A slider 9 is provided at the bottom of the lifting platform 6, which cooperates with the slide groove 10 of the base 1. The slider 9 is also provided with a threaded hole that threadably cooperates with the second screw 7 in the slide groove 10. By turning the twist cover 8 to drive the second screw 7 to rotate, the slider 9 can be threaded in and out of the second screw 7, thereby achieving precise displacement of the slider 9 in the slide groove 10, thereby achieving lateral displacement of the lifting platform 6 on the base 1. The lifting platform 6 is provided with an open structure 601 on the side facing the bracket 3. A screw 602 is vertically provided in the open structure 601. The top of the screw 602 passes through the lifting platform 6 and is provided with a handwheel 604 at the end. The bottom of the screw 602 is movably connected to the lifting platform 6 via a bearing. By rotating the handwheel 604, the screw 602 is driven to rotate freely in the open structure 601.

[0026] The robotic arm 5 is movably mounted on a lifting platform 6. The rear portion 603 of the robotic arm is threadedly connected to a screw 602 via a threaded hole. As the screw 602 rotates, the robotic arm 5 can move vertically up and down by moving the threads in and out. A cavity is defined within the front portion 501 of the robotic arm, and the sidewalls of the cavity are provided with forward and backward limiting grooves 5011. An extension rod 502 is sleeved within the cavity of the front portion 501 of the robotic arm, and a limiting block 5021 is provided on the extension rod 502 to slidably engage with the limiting groove 5011.

[0027] The clamping portion 503 is arranged on the end of the extension rod 502 away from the lifting platform 6, and a clamping screw 505 is provided on the clamping portion 503. The air outlet tube of the hot air gun 4 is placed in the clamping portion 503. The clamping portion 503 is a central through structure, and the inner ring shape of the through structure cooperates with the air outlet tube of the hot air gun 4. By tightening the clamping screw 505 that passes through the end of the clamping portion 503 and rests on the air outlet tube, the air outlet tube is limited and fixed.

[0028] Example 1:

[0029] Adjust the position of the support rod 302 and tighten the tightening screw 304 to fix the connecting block 303 and the support rod 302. Place the circuit board on the support body 305 of the bracket 3 and fix it;

[0030] According to the thickness of the circuit board and the position to be heated, the hand wheel 604 is rotated to adjust the mechanical arm 5 on the lifting platform 6 to a suitable height;

[0031] Adjust the knob 8 to move the robotic arm 5 laterally to the appropriate position;

[0032] Adjust the position of the hot air gun 4 by the robotic arm 5 so that its air outlet is aligned with the solder joints of the chip on the circuit board;

[0033] Turn on the electric heating plate 2 and the hot air gun 4 to start heating the circuit board;

[0034] Observe the heating situation and fine-tune the position of the heat gun 4 if necessary;

[0035] When the solder joints melt, use other tools (such as tweezers) to remove the chip;

[0036] After completing welding or disassembly, turn off the unit and clean the work area.

[0037] The above description is only a specific implementation method of this utility model, but the protection scope of this utility model is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by this utility model, can make equivalent substitutions or changes based on the technical solutions and new concepts of this utility model, which should be covered by the protection scope of this utility model.

Claims

1. A circuit board welding device, characterized in that: include: A base, wherein a sliding groove is provided on one side of the base; a bracket, wherein the bracket is mounted on the base; A lifting platform, wherein a slider is provided at the bottom of the lifting platform and is connected with a slide groove of the base. The lifting platform is an open structure facing the bracket; A screw rod is arranged in the lifting platform, the top of the screw rod passes through the lifting platform, and the bottom of the screw rod is connected to the bottom of the lifting platform through a bearing; A robotic arm, wherein a threaded hole is provided on one side of the rear portion of the robotic arm for connection with a screw in the lifting platform; a cavity with an open end is provided on one side of the front portion of the robotic arm, and a front-to-back limiting groove is provided on the side wall of the cavity; The extension rod is sleeved in the cavity of the mechanical arm, and a limit block is provided on the side of the extension rod to slide in the limit groove; The clamping portion is provided on an end of the extension rod away from the robotic arm, and the clamping portion is a centrally-through structure; A hot air gun, wherein the air cylinder of the hot air gun is placed in the central through structure of the clamping part.

2. A circuit board welding device according to claim 1, characterized in that: The bracket is a frame structure, and a plurality of adjustable support rods are provided in the middle of the bracket. Connecting blocks are provided at both ends of the adjustable support rods. The connecting blocks are slidably connected to the frame structure. A tightening screw is provided on the connecting block. A plurality of supporting bodies are provided on the support rods, and the supporting bodies are used to support the circuit board.

3. A circuit board welding device according to claim 1, characterized in that: The top of the screw rod extends out of the lifting platform and is connected with the hand wheel.

4. A circuit board welding device according to claim 1, characterized in that: A second screw is provided in the slide groove, and the second screw passes through a threaded hole provided in the slider and is threadedly engaged. The second screw passes through one side of the base and is provided with a twist cover at the end.

5. A circuit board welding device according to claim 1, characterized in that: The base is provided with a through air-avoiding structure in a vertical direction, and an electric heating plate is provided in the air-avoiding structure.

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