Spot welding device for PCB (Printed Circuit Board)
By designing highly adaptable clamping components and efficient purification components, the problem of insufficient fixing and purification effects of traditional spot welding devices on circuit boards of different specifications is solved, and the stable spot welding process and harmful gas purification is achieved, and the environment and personnel are protected. Safety.
Patent Information
- Application Number
- CN202322910769.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-30
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-10-30
AI Technical Summary
Traditional PCB circuit board spot welding devices have poor adaptability and are difficult to fix circuit boards of different specifications, resulting in position offset or drop, and poor purification effect, resulting in toxic gases that can harm the environment and personnel.
A spot welding device including abutment, casing, adjustment chamber, clamping assembly, clamping frame, welding box, welding hose, spot welding gun and purification assembly is designed to realize the circuit boards of different specifications by clamping assembly. Fixed, the purifying components include a fan, a ventilation filter, an activated carbon adsorption plate and a fiberglass painted mist filter felt for harmful gas purification.
Effectively prevent the circuit board from being offset or falling, ensure the normal operation of the spot welding process, and capture and purify toxic gases through purification components to protect the environment and personnel safety.
Smart Images
Figure CN222199381U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a spot welding device, in particular to a spot welding device for a PCB circuit board, and belongs to the technical field of PCB circuit boards. Background Art
[0002] PCB Chinese name is printed circuit board, also known as printed circuit board, is an important electronic component, the support of electronic components, and the carrier of electrical connection of electronic components. Because it is made by electronic printing, it is called "printed" circuit board, abbreviated as printed board, which is one of the important components of the electronics industry. Almost every electronic device, as long as it has electronic components such as integrated circuits, must use printed boards to make electrical interconnections between various components. It can replace complex wiring and realize electrical connection between various components in the circuit, which not only simplifies the assembly and welding of electronic products, but also reduces the size of the whole machine, reduces product costs, and improves the quality and reliability of electronic equipment.
[0003] PCB circuit boards need to be spot welded during the processing, so a spot welding device is needed. Although the traditional spot welding device has the ability to spot weld, it still has some shortcomings. For example, its adaptability is poor and it is difficult to fix circuit boards of different specifications. Therefore, it is easy to cause the position of the circuit board to shift or fall during spot welding, thereby affecting the normal progress of the spot welding process. In addition, its purification effect is poor. Since certain toxic gases will be generated during the spot welding operation, if these toxic gases are not purified, they will cause harm to the surrounding environment and processing personnel. Utility Model Content
[0004] The purpose of the utility model is to provide a spot welding device for a PCB circuit board in order to solve the above-mentioned problem. The device has good adaptability and can be used to fix circuit boards of different specifications. Therefore, it is not easy for the position of the circuit board to shift or fall during spot welding, thereby ensuring the normal progress of the spot welding process. In addition, the device has a good purification effect and can purify the generated toxic gases to avoid harm to the surrounding environment and processing personnel.
[0005] The utility model achieves the above-mentioned purpose through the following technical scheme, including a base, the four corners of the bottom of the base are fixedly connected with supporting legs, the top of the machine table is fixedly connected with a casing, the inner cavity of the base is provided with an adjusting cavity, the adjusting cavity is provided with a clamping assembly, the inner top wall of the casing is fixedly connected with a clamping frame, one side of the clamping frame is provided with a welding box fixedly connected to the inner top wall of the casing, a spot welding gun is connected to the welding box through a welding hose, the spot welding gun is provided with a clamping block and the spot welding gun is clamped with the clamping frame through the clamping block, and a purification assembly is provided on one side of the top of the casing.
[0006] Preferably, the clamping assembly includes a driving motor arranged at the center of the bottom wall of the base, the output end of the driving motor passes through the bottom wall of the base and extends into the adjustment cavity and this end is rotatably connected to the inner top wall of the adjustment cavity, and a first bevel gear is also fixedly connected thereto.
[0007] Preferably, the first bevel gear is symmetrically meshed with a second bevel gear, a threaded rod is fixedly connected to the second bevel gear and the other end of the threaded rod is rotatably connected to the inner wall of the adjustment cavity, and a threaded seat passes through and is threadedly connected to the threaded rod.
[0008] Preferably, the top of the threaded seat is fixedly connected to a supporting side plate, the top wall of the base is provided with a movable groove, the supporting side plate passes through the top wall of the base through the movable groove and extends to the inner cavity of the casing and is fixedly connected to a movable splint.
[0009] Preferably, the purification component includes a purification box, an exhaust fan is provided at the top of the inner cavity of the purification box, a ventilation filter is provided at the top of the rear wall of the purification box, an activated carbon adsorption plate is provided below the ventilation filter, and a glass fiber paint mist filter felt is provided below the activated carbon adsorption plate.
[0010] Preferably, the purification component also includes a smoke collecting pipe arranged on one side of the top of the inner cavity of the casing, the bottom end of the smoke collecting pipe is connected to a smoke collecting hopper and the top end of the smoke collecting pipe passes through the casing and the bottom wall of the purification box and is connected to the inner cavity of the purification box.
[0011] The beneficial effects of the utility model are as follows: the clamping assembly can be used to fix and clamp circuit boards of different specifications by adjusting the spacing between the two movable clamping plates, so it is not easy for the position of the circuit board to shift or fall during spot welding, thereby ensuring the normal progress of the spot welding process; the welding box, welding hose and spot welding gun can be used to perform electric welding on the circuit board, and the spot welding gun can be clamped and placed when not in use through the coordinated use of the clamping frame and the clamping block; the harmful gas generated during the spot welding process can be collected and purified by the purification assembly, thereby avoiding the direct emission of toxic gases and harming the surrounding environment and processing personnel. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a front view of a spot welding device for a PCB circuit board according to the utility model;
[0013] Figure 2 This is a schematic structural diagram of a spot welding device for a PCB circuit board according to the utility model;
[0014] Figure 3 This is a structural schematic diagram of a clamping assembly of a spot welding device for a PCB circuit board according to the utility model;
[0015] Figure 4 This is a structural schematic diagram of a purification component of a spot welding device for a PCB circuit board according to the utility model;
[0016] In the figure: 1. base; 2. casing; 3. adjustment chamber; 4. drive motor; 5. threaded rod; 6. threaded seat; 7. supporting side plate; 8. movable groove; 9. movable splint; 10. clamping frame; 11. welding box; 12. spot welding gun; 13. purification box; 14. exhaust fan; 15. activated carbon adsorption plate; 16. glass fiber paint mist filter felt; 17. smoke collecting pipe; 18. smoke collecting hopper. DETAILED DESCRIPTION
[0017] 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.
[0018] See also Figure 1-4 As shown, a spot welding device for a PCB circuit board comprises a base 1, wherein the four corners of the bottom of the base 1 are fixedly connected with supporting legs, the top of the base is fixedly connected with a casing 2, the inner cavity of the base 1 is provided with an adjusting cavity 3, the adjusting cavity 3 is provided with a clamping assembly, the inner top wall of the casing 2 is fixedly connected with a clamping frame 10, one side of the clamping frame 10 is provided with a welding box 11 fixedly connected to the inner top wall of the casing 2, a spot welding gun 12 is connected to the welding box 11 through a welding hose, a clamping block is provided on the spot welding gun 12 and the spot welding gun 12 is clamped with the clamping frame 10 through the clamping block, and a purification assembly is provided on one side of the top of the casing 2.
[0019] As a preferred technical solution of the utility model, the clamping assembly includes a driving motor 4 arranged at the center of the bottom wall of the base 1, the output end of the driving motor 4 passes through the bottom wall of the base 1 and extends into the adjusting cavity 3, and this end is rotatably connected to the inner top wall of the adjusting cavity 3, and a first bevel gear is also fixedly connected thereto.
[0020] As a preferred technical solution of the utility model, a second bevel gear is symmetrically meshed on the first bevel gear, a threaded rod 5 is fixedly connected to the second bevel gear and the other end of the threaded rod 5 is rotatably connected to the inner wall of the adjusting chamber 3, and a threaded seat 6 passes through and is threadedly connected to the threaded rod 5.
[0021] As a preferred technical solution of the utility model, the top of the threaded seat 6 is fixedly connected to a supporting side plate 7, the top wall of the base 1 is provided with a movable groove 8, the supporting side plate 7 passes through the top wall of the base 1 through the movable groove 8 and extends to the inner cavity of the casing 2 and is fixedly connected to a movable splint 9.
[0022] As a preferred technical solution of the utility model, the purification component includes a purification box 13, an exhaust fan 14 is provided at the top of the inner cavity of the purification box 13, a ventilation filter is provided at the top of the rear wall of the purification box 13, an activated carbon adsorption plate 15 is provided below the ventilation filter, and a glass fiber paint mist filter felt 16 is provided below the activated carbon adsorption plate 15.
[0023] As a preferred technical solution of the present utility model, the purification component also includes a smoke collecting pipe 17 arranged on one side of the top of the inner cavity of the casing 2, the bottom end of the smoke collecting pipe 17 is connected to a smoke collecting hopper 18, and the top end of the smoke collecting pipe 17 passes through the casing 2 and the bottom wall of the purification box 13 and is connected to the inner cavity of the purification box 13.
[0024] In the utility model, the circuit board needs to be fixed and clamped before spot welding. When clamping, the driving motor 4 is started first. The driving motor 4 drives the first bevel gear to rotate through its output end. The first bevel gear drives the second bevel gear and the threaded rod 5 thereon to rotate through the meshing of the gear teeth. The rotation of the threaded rod 5 drives the threaded seat 6 to move through the thread, thereby driving the supporting side plate 7 and the movable clamping plate 9 thereon to approach each other through the threaded seat 6 to fix and clamp the circuit board through the movable clamping plate 9. After the circuit board is fixed, the spot welding gun 12 is removed from the clamping frame 10 and the circuit board can be spot welded. During the spot welding process, the exhaust fan 14 is turned on at the same time, and the exhaust fan 14 can rotate at high speed. The rotation causes negative pressure to be generated inside the purification box 13. The air pressure in the purification box 13 is much lower than the air pressure in the inner cavity of the casing 2. Under the action of the internal and external differential pressure, the harmful gases generated in the welding process pass through the smoke collecting hopper 18 and enter the smoke collecting pipe 17 along with the airflow and finally reach the purification box 13. The harmful gases are first collected by the glass fiber paint mist filter felt 16. The glass fiber paint mist filter felt 16 is made of long glass fibers in a non-woven manner. It has a large air permeability, low resistance, good dust collection efficiency, large dust holding capacity, and a long service life. Then, the harmful substances are adsorbed by the activated carbon adsorption plate 15. The activated carbon adsorption plate 15 can provide excellent adsorption capacity through its own porous structure, and finally discharged through the ventilation filter.
[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A spot welding device for a PCB circuit board, comprising a base (1), characterized in that: The four corners of the bottom of the base (1) are fixedly connected to support legs, the top of the base is fixedly connected to the housing (2), the inner cavity of the base (1) is provided with an adjustment cavity (3), a clamping assembly is provided in the adjustment cavity (3), the inner top wall of the housing (2) is fixedly connected to a clamping frame (10), one side of the clamping frame (10) is provided with a welding box (11) fixedly connected to the inner top wall of the housing (2), a spot welding gun (12) is connected to the welding box (11) via a welding hose, a clamping block is provided on the spot welding gun (12) and the spot welding gun (12) is clamped to the clamping frame (10) via the clamping block, and a purification assembly is provided on one side of the top of the housing (2).
2. A spot welding device for a PCB circuit board according to claim 1, characterized in that: The clamping assembly comprises a driving motor (4) arranged at the center of the bottom wall of the base (1), the output end of the driving motor (4) passes through the bottom wall of the base (1) and extends into the adjusting cavity (3), and this end is rotatably connected to the inner top wall of the adjusting cavity (3), and a first bevel gear is also fixedly connected thereto.
3. A spot welding device for a PCB circuit board according to claim 2, characterized in that: A second bevel gear is symmetrically meshed with the first bevel gear, a threaded rod (5) is fixedly connected to the second bevel gear and the other end of the threaded rod (5) is rotatably connected to the inner wall of the adjustment cavity (3), and a threaded seat (6) passes through and is threadedly connected to the threaded rod (5).
4. A spot welding device for a PCB circuit board according to claim 3, characterized in that: The top of the threaded seat (6) is fixedly connected to a supporting side plate (7), the top wall of the base (1) is provided with a movable groove (8), the supporting side plate (7) passes through the top wall of the base (1) through the movable groove (8) and extends to the inner cavity of the casing (2) and is fixedly connected to a movable clamping plate (9).
5. A spot welding device for a PCB circuit board according to claim 1, characterized in that: The purification component comprises a purification box (13), an exhaust fan (14) is provided at the top of the inner cavity of the purification box (13), a ventilation filter is provided at the top of the rear wall of the purification box (13), an activated carbon adsorption plate (15) is provided below the ventilation filter, and a glass fiber paint mist filter felt (16) is provided below the activated carbon adsorption plate (15).
6. A spot welding device for a PCB circuit board according to claim 5, characterized in that: The purification component further comprises a smoke collecting pipe (17) arranged on one side of the top of the inner cavity of the casing (2), the bottom end of the smoke collecting pipe (17) being connected to a smoke collecting hopper (18), and the top end of the smoke collecting pipe (17) passing through the casing (2) and the bottom wall of the purification box (13) and being connected to the inner cavity of the purification box (13).