Auxiliary fixing device for welding PCB board

Abstract

The utility model discloses an auxiliary fixing device for the welding of PCB board relates to PCB board welding technical field, including work table, work table top surface skew angle symmetry has four guide grooves, four guide grooves all sliding have the sliding block, and the sliding block section is C shape, and the sliding block is equipped with the clamping plate in, and the clamping plate top surface rotation is equipped with the bolt, and the bolt one end penetrates the sliding block top surface, the utility model discloses the sliding cooperation of sliding block and guide groove, and it is convenient according to the flexible adjustment clamping plate position of PCB board size, has improved the convenience of adaptation different size PCB board, and then can realize the steady clamping function of various size PCB board, and through the rotation cooperation of bolt and clamping plate again, it is convenient to accurate control clamping plate's clamping intensity to PCB board, has improved the stability and welding quality when PCB board welding.

Description

Technical Field

[0001] This utility model relates to the field of PCB board welding technology, and in particular to an auxiliary fixing device for welding PCB boards. Background Technology

[0002] In the field of electronic equipment manufacturing, printed circuit boards (PCBs) are the key carriers for the electrical connection of electronic components, and their soldering quality directly affects the performance and stability of electronic equipment. Whether it is a single-sided or double-sided board, it is crucial to ensure that the PCB board is fixed in position during the soldering process when soldering various electronic components such as resistors, capacitors, diodes and transformers.

[0003] Most existing fixing devices are not well adapted to PCBs of different sizes. Common fixing methods only clamp the PCB in the horizontal direction and often rely on spring force. Since the spring length is fixed, it is difficult to accurately adapt the spring force to different PCB sizes. When the PCB size is too small, the fixing force provided by the spring is insufficient, resulting in poor stability of the PCB during the soldering process. It is very easy for it to shift due to slight external touch or prolonged soldering operations. For double-sided PCBs, this may damage the solder joints on the soldered side and seriously affect the soldering quality. Therefore, the above problems need to be improved. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an auxiliary fixing device for soldering PCB boards.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an auxiliary fixing device for soldering PCB boards, comprising a workbench, wherein four guide grooves are symmetrically provided at an oblique angle on the top surface of the workbench, and a slider is slidably provided on each of the four guide grooves. The slider has a C-shaped cross section, a clamping plate is provided inside the slider, and a bolt is rotatably provided on the top surface of the clamping plate, one end of the bolt penetrating the top surface of the slider.

[0006] Preferably, a connecting seat is inserted into the bottom surface of the workbench, and a ring of ball bearings is abutting the bottom end of the connecting seat. The ball bearings are rotatably mounted on the top surface of the lifting platform. A hollow cylinder is coaxially fixed to the bottom end of the connecting seat, and a toothed ring is provided at the bottom end of the outer wall of the hollow cylinder.

[0007] Preferably, a screw is rotatably provided in two of the four guide grooves that are symmetrically arranged, and one end of the screw passes through the outer wall of the workbench and is coaxially fixed to a first knob.

[0008] Preferably, the bottom surface of the lifting platform is provided with multiple telescopic rods, one end of each telescopic rod is fixedly connected to a mounting platform, a motor is installed in the middle of the mounting platform, a lead screw is coaxially fixed to the motor, the bottom part of the lifting platform is screwed to the lead screw, and the lead screw is coaxial with the hollow cylinder.

[0009] Preferably, a transmission gear is engaged at one point on the top surface of the gear ring, and a connecting rod is coaxially fixed to the transmission gear. One end of the connecting rod passes through the outer wall of the lifting platform and is sleeved with a second knob. A limiting block is provided on one side of the second knob, and a corresponding slot is provided on the outer wall of the lifting platform. Multiple sliding grooves are provided along the axis at one end of the connecting rod, and the second knob is slidably disposed in the sliding groove.

[0010] Preferably, the top surface of the connecting seat is provided with a ring of protrusions, and the bottom surface of the worktable is provided with a ring of protrusion grooves corresponding to the protrusions.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the sliding cooperation between the slider and the guide groove, facilitates flexible adjustment of the clamping plate position according to the PCB board size, improving the convenience of adapting to PCB boards of different sizes, and thus enabling the stable clamping function of PCB boards of various sizes; furthermore, through the rotational cooperation between the bolt and the clamping plate, it is easy to precisely control the clamping force of the clamping plate on the PCB board, improving the accuracy of the clamping force, and thus enabling the function of providing appropriate fixing force for PCB boards of different sizes. Ultimately, it solves the problem that existing fixing devices, due to the fixed spring length and the difficulty in accurately adapting the elastic force to different PCB boards, result in unstable fixing of small-sized PCB boards and easy displacement during the welding process, affecting the welding quality, thus improving the stability and welding quality of PCB boards during welding. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0013] Figure 1 This is a first-view schematic diagram of the overall structure proposed in this utility model;

[0014] Figure 2 This is a first-view schematic diagram of the overall cross-sectional structure proposed in this utility model;

[0015] Figure 3 This is a second-view schematic diagram of the overall cross-sectional structure proposed in this utility model;

[0016] Figure 4 This is a partial cross-sectional structural diagram of the connecting rod proposed in this utility model.

[0017] The numbers in the diagram are: 1. Workbench; 2. Slider; 3. Guide groove; 4. First knob; 5. Clamping plate; 6. Screw; 7. Second knob; 8. Connecting seat; 9. Gear ring; 10. Ball bearing; 11. Connecting rod; 12. Transmission gear; 13. Telescopic rod; 14. Slot; 15. Lead screw; 16. Motor; 17. Limit block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Example: See Figure 1-4 This utility model discloses an auxiliary fixing device for PCB board soldering, comprising a workbench 1. Four guide grooves 3 are symmetrically formed at an oblique angle on the top surface of the workbench 1. A slider 2 is slidably mounted on each of the four guide grooves 3. The slider 2 has a C-shaped cross-section and a clamping plate 5 is installed inside it. A bolt is rotatably mounted on the top surface of the clamping plate 5, with one end of the bolt penetrating the top surface of the slider 2. The workbench 1 is made of aluminum alloy, which is lightweight, high-strength, and not easily deformed, providing a stable foundation for PCB board fixing. The guide grooves 3 are designed to facilitate the sliding of the slider 2 in a specific direction. The C-shaped slider 2 can securely install the clamping plate 5. The clamping force of the clamping plate 5 on the PCB board can be adjusted by rotating the bolt, achieving flexible fixing of PCB boards of different sizes. This solves the problem that traditional fixing devices are difficult to adapt to various PCB board sizes, improving the convenience and versatility of fixing. A connecting seat 8 is inserted into the bottom surface of the workbench 1. A ring of ball bearings 10 is abutted at the bottom end of the connecting seat 8 and is rotatably mounted on the top surface of the lifting platform. A bolt is coaxially fixed to the bottom end of the connecting seat 8. The hollow cylinder has a toothed ring 9 at the bottom of its outer wall. The connecting seat 8 is made of steel, which is sturdy and durable. It is inserted into the bottom of the worktable 1, making the connection stable and easy to disassemble. The ball bearing 10 allows the worktable 1 to rotate flexibly on the top of the lifting platform. The hollow cylinder and toothed ring 9 provide the structural basis for subsequent power transmission and realize the adjustable angle function of the worktable 1. This facilitates the operation of the PCB board from different angles during welding, improving the flexibility and convenience of the welding process. Two of the four guide grooves 3 are symmetrically equipped with screws 6. One end of the screw 6 passes through the outer wall of the worktable 1 and is coaxially fixed to the first knob 4. The screw 6 is made of high-strength stainless steel, which has good wear resistance. Rotating the first knob 4 can drive the screw 6 to rotate, thereby driving the slider 2 that it cooperates with to move in the guide groove 3. This allows for precise adjustment of the position of the corresponding slider 2. Compared with manually pushing the slider 2 directly, the operation is more precise and can quickly adjust the clamp 5 to the appropriate position to fix the PCB board, improving the efficiency and accuracy of the fixing operation.

[0020] In this utility model, multiple telescopic rods 13 are provided around the bottom of the lifting platform. One end of each telescopic rod 13 is fixedly connected to a mounting platform. A motor 16 is installed in the middle of the mounting platform, and a lead screw 15 is coaxially fixed to the motor 16. The bottom end of the lifting platform is screwed to the lead screw 15, which is coaxial with the hollow cylinder. The telescopic rods 13 support and stabilize the lifting platform, and the height of the lifting platform can be adjusted according to actual needs. The motor 16 is selected to have a stable speed and large torque, providing stable power to the lead screw 15. By driving the lead screw 15 to rotate through the motor 16, the lifting height of the lifting platform can be precisely controlled, meeting the welding operation requirements at different heights, improving the applicability of the device, and solving the problem of traditional fixed devices having non-adjustable or inconvenient height adjustments. A transmission gear 12 is meshed on the top surface of the gear ring 9. A connecting rod 11 is coaxially fixed to the transmission gear 12. One end of the connecting rod 11 penetrates the outer wall of the lifting platform and is sleeved with a second knob 7. A limiting block 17 is provided on one side of the second knob 7, and a corresponding limit block 17 is provided on the outer wall of the lifting platform. The retaining block 17 has a slot 14, and one end of the connecting rod 11 has multiple sliding grooves along the axis. The second knob 7 is slidably set in the sliding groove. Rotating the second knob 7 can drive the transmission gear 12 to rotate through the connecting rod 11, thereby driving the gear ring 9, the connecting seat 8, and the worktable 1 to rotate, thus adjusting the angle of the worktable 1. The retaining block 17 cooperates with the slot 14 to limit the second knob 7 after the angle is adjusted, preventing it from rotating accidentally and causing the angle of the worktable 1 to change. This ensures the stability of the angle of the worktable 1 during the welding process and improves the welding quality. The top surface of the connecting seat 8 has a ring of protrusions, and the bottom surface of the worktable 1 has a ring of protrusion grooves corresponding to the protrusions. The cooperation between the protrusions and the protrusion grooves plays a role in positioning and enhancing the connection stability when the worktable 1 is connected to the connecting seat 8. This prevents the worktable 1 from shifting or shaking on the connecting seat 8, further improving the stability of the entire device during the PCB board fixing and welding operations. This ensures that the PCB board remains in a fixed position during welding, which is beneficial to improving welding accuracy.

[0021] Working Principle: When using this invention, firstly, according to the PCB board size, rotate the first knob 4 to drive the screw 6 to rotate. The rotation of the screw 6 causes the sliders 2 in the two symmetrical guide grooves 3 to slide on the guide grooves 3. At the same time, the sliders 2 in the other two guide grooves 3 can also be manually slid to adjust the four sliders 2 to the appropriate position. Then, place the PCB board between the clamping plates 5 in the four sliders 2, and rotate the bolt on the top surface of the clamping plate 5 to push the clamping plate 5 to move, thereby clamping and fixing the PCB board. When it is necessary to adjust the height of the worktable 1, start the motor 16 on the mounting platform. The motor 16 drives the lead screw 15 to rotate. Since the bottom end of the lifting platform is screwed to the lead screw 15, the rotation of the lead screw 15 causes the lifting platform to move up and down along the lead screw 15. Multiple telescopic rods 13 cooperate with the lifting platform to ensure the stability of the lifting process. To adjust the worktable... 1. Pull the second knob 7 to disengage the limiting block 17 on one side of the second knob 7 from the slot 14 on the outer wall of the lifting platform. Slide the second knob 7 along the sliding groove of the connecting rod 11 to disengage it from the limiting position of the connecting rod 11. Rotate the second knob 7, which drives the transmission gear 12 to rotate through the connecting rod 11. The transmission gear 12 meshes with the gear ring 9, thereby driving the hollow cylinder, connecting seat 8, and worktable 1 to rotate. After adjusting the worktable 1 to a suitable angle, push the second knob 7 to engage the limiting block 17 on one side into the slot 14, fixing the angle of the worktable 1. At this time, the ball bearing 10 at the bottom of the connecting seat 8 rolls on the top surface of the lifting platform to ensure the smooth rotation of the worktable 1. The protrusion on the top surface of the connecting seat 8 cooperates with the protrusion groove on the bottom surface of the worktable 1 to ensure that the worktable 1 is stable and does not deviate during the angle adjustment process. The device is now in use.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An auxiliary fixing device for soldering PCB boards, comprising a worktable (1), characterized in that: The workbench (1) has four guide grooves (3) symmetrically opened at an oblique angle on its top surface. Each of the four guide grooves (3) has a slider (2) that slides on it. The slider (2) has a C-shaped cross section. The slider (2) has a clamping plate (5) inside it. The top surface of the clamping plate (5) is rotatably provided with a bolt. One end of the bolt passes through the top surface of the slider (2).

2. The auxiliary fixing device for soldering PCB boards according to claim 1, characterized in that: The bottom surface of the workbench (1) is provided with a connecting seat (8), and the bottom end of the connecting seat (8) is provided with a ring of ball bearings (10). The ball bearings (10) are rolled on the top surface of the lifting platform. The bottom end of the connecting seat (8) is coaxially fixed with a hollow cylinder, and the bottom end of the outer wall of the hollow cylinder is provided with a ring of teeth (9).

3. The auxiliary fixing device for soldering PCB boards according to claim 2, characterized in that: Two of the four guide grooves (3) are symmetrically equipped with screws (6), one end of which passes through the outer wall of the workbench (1) and is coaxially fixed to a first knob (4).

4. The auxiliary fixing device for soldering PCB boards according to claim 3, characterized in that: Multiple telescopic rods (13) are provided around the bottom of the lifting platform. One end of the telescopic rod (13) is fixedly connected to an installation platform. A motor (16) is installed in the middle of the installation platform. A lead screw (15) is coaxially fixed to the motor (16). The bottom part of the lifting platform is screwed to the lead screw (15). The lead screw (15) is coaxial with the hollow cylinder.

5. The auxiliary fixing device for soldering PCB boards according to claim 4, characterized in that: A transmission gear (12) is meshed on the top surface of the gear ring (9). The transmission gear (12) is coaxially fixed to a connecting rod (11). One end of the connecting rod (11) passes through the outer wall of the lifting platform and is sleeved with a second knob (7). A limiting block (17) is provided on one side of the second knob (7). A slot (14) corresponding to the limiting block (17) is provided on the outer wall of the lifting platform. Multiple sliding grooves are provided along the axis at one end of the connecting rod (11). The second knob (7) is slidably disposed in the sliding groove.

6. The auxiliary fixing device for soldering PCB boards according to claim 5, characterized in that: The top surface of the connecting seat (8) is provided with a ring of protrusions, and the bottom surface of the worktable (1) is provided with a ring of protrusion grooves corresponding to the protrusions.

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