Fixing device for circuit board welding

Abstract

The utility model relates to the field of circuit board welding auxiliary equipment, in particular to a fixing device for circuit board welding. The fixing device for circuit board welding comprises a base, L-shaped clamping seats, a driving assembly, a sliding cylinder and an adjusting assembly, supporting cylinders are symmetrically installed at the top of the base in a sliding mode, a tension spring is fixedly connected between the two supporting cylinders, the L-shaped clamping seats used for clamping a circuit board are arranged above the supporting cylinders, and the L-shaped clamping seats are used for clamping the circuit board. A driving assembly is installed between the base and the supporting cylinder. According to the fixing device for circuit board welding, clamping of the circuit board is achieved through the driving assembly, a worker only needs to press the pressing rod, the two supporting cylinders can be driven to be away from each other through the connecting rod mechanism, and a space is provided for containing the circuit board; after the pressing rod is loosened, the supporting cylinder and the L-shaped clamping seat get close to each other under the elastic action of the spring and the tension spring, and clamping of the circuit board is completed; by means of the operation mode, operation steps are greatly simplified, time and energy are saved, and production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit board welding auxiliary equipment, and in particular to a fixing device for circuit board welding. Background Technology

[0002] In today's rapidly developing electronics industry, circuit boards (PCBs), as core components of electronic devices, play a decisive role in the performance and stability of these devices due to their soldering quality. During the soldering process, PCB mounting devices are crucial tools for ensuring soldering precision and efficiency. However, currently widely used PCB mounting devices on the market suffer from numerous problems that urgently need to be addressed.

[0003] Currently, most mounting devices use screws to secure circuit boards. This traditional method requires workers to tighten multiple screws one by one, which is not only time-consuming and labor-intensive, but also cumbersome when removing the circuit board. This results in low efficiency in both the fixing and disassembly processes, seriously affecting the overall progress of the soldering work.

[0004] On the other hand, as the electronics manufacturing industry continues to demand higher levels of humanization and efficiency, workers of different heights need to adjust circuit board fixing devices to a suitable height to maintain a comfortable operating posture, thereby improving soldering quality and work efficiency. However, existing fixing devices have significant shortcomings in height adjustment. To ensure stability after adjustment, their height adjustment structures are often designed to be complex, with cumbersome operation steps, requiring workers to spend time adjusting them and making it difficult to quickly find a suitable working height. This inconvenience not only affects the work experience of workers but also reduces production efficiency.

[0005] Therefore, it is necessary to provide a new fixing device for circuit board soldering to solve the above-mentioned technical problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a fixing device for circuit board welding.

[0007] The fixing device for circuit board welding provided by this utility model includes: a base, an L-shaped clamping seat, a driving component, a sliding cylinder, and an adjusting component. Support cylinders are symmetrically slidably mounted on the top of the base, and a tension spring is fixedly connected between the two support cylinders. Each support cylinder has an L-shaped clamping seat above it for clamping the circuit board. A driving component is installed between the base and the support cylinders, driving the support cylinders to move relative to each other, causing the L-shaped clamping seats to clamp the circuit board. Sliding cylinders are slidably mounted inside each support cylinder, and clearance grooves are provided on opposite sides of each sliding cylinder. An adjusting component is installed between the base and the sliding cylinders, driving the sliding cylinders to move up and down to adjust the height of the L-shaped clamping seats.

[0008] Preferably, the drive assembly includes: a push rod, a first connecting rod, a slide rod, and a second connecting rod. A mounting cylinder is vertically fixed to the top of the base. The push rod is slidably connected inside the mounting cylinder. The bottom of the push rod extends out of the mounting cylinder and is rotatably connected to the first connecting rod. The other end of the first connecting rod is rotatably connected to the slide rod. The bottom of the slide rod is slidably connected to the base. The other end of the slide rod is symmetrically rotatably connected to the second connecting rod. The other end of each second connecting rod is rotatably connected to the bottom of the corresponding support cylinder.

[0009] Preferably, a guide rod is fixedly connected to the end of the slide rod away from the connecting rod, and a cylinder is fixedly connected to the top of the base. The end of the guide rod away from the slide rod is placed inside the cylinder and is slidably connected to its inner wall. A spring is fixedly connected to the inner wall of the cylinder, and the other end of the spring is fixedly connected to the guide rod.

[0010] Preferably, a sleeve is fixedly connected to the inner axis of one of the two L-shaped clamping seats, a sleeve rod is fixedly connected to the inner axis of the other, and a crank is fixedly connected to the outer axis of the other. The sleeve rod is placed inside the sleeve and is slidably connected to its inner wall.

[0011] Preferably, both L-shaped clamping seats are rotatably connected to the top of the corresponding slide cylinder, and friction plates are provided at their rotatable connection points.

[0012] Preferably, each of the two L-shaped clamps has a groove on its opposite side, and each groove has a rubber pad.

[0013] Preferably, the adjusting assembly includes a worm, a worm wheel, and a transmission rod. A mounting bracket is fixedly connected to the top of the base. The worm is rotatably connected inside the mounting bracket. A turntable is fixedly connected to the other end of the worm extending out of the mounting bracket. A worm wheel is meshed above the worm. A transmission rod is fixedly connected to the axis of the worm wheel. Both ends of the transmission rod extend outside the mounting bracket, and connecting cylinders are slidably connected to the outer walls of both ends.

[0014] Preferably, the opposite ends of the connecting cylinders are all fixedly connected to the inside of the corresponding slide cylinders with gears, and one side of each gear is meshed with a rack, which is fixedly connected to the inner wall of the corresponding slide cylinder.

[0015] Compared with related technologies, the fixing device for circuit board welding provided by this utility model has the following advantages:

[0016] Beneficial effects:

[0017] The circuit board is clamped by a drive component. The operator only needs to press the lever to move the two support cylinders away from each other through the linkage mechanism, providing space for the circuit board to be placed. After releasing the lever, the elastic force of the spring and tension spring will bring the support cylinders and the L-shaped clamping seat closer together to complete the clamping of the circuit board. This operation method greatly simplifies the operation steps, saves time and effort, and improves production efficiency.

[0018] By adjusting the component design, the operator can rotate the turntable to drive the worm gear, which in turn drives the worm wheel and transmission rod to rotate, ultimately driving the connecting cylinder and gear to rotate. This allows the slide cylinder to move up and down inside the support cylinder, thus adjusting the height of the L-shaped clamp and circuit board. Operators of different heights can adjust the fixing device to a suitable height according to their needs, maintaining a comfortable operating posture, thereby reducing fatigue and improving welding quality and work efficiency.

[0019] The L-shaped clamping base has grooves on both sides facing each other, and each groove is equipped with a rubber pad. The rubber pad can increase the friction between the rubber pad and the circuit board, prevent the circuit board from sliding during the welding process, and also play a buffering role to avoid excessive clamping force from damaging the circuit board and ensuring the welding quality.

[0020] The L-shaped clamp and the slide are connected by a friction plate. After rotation, the friction plate provides damping, which can effectively prevent the circuit board angle from shifting during the welding process and ensure the welding quality. Attached Figure Description

[0021] Figure 1 A schematic diagram of the fixing device for welding circuit boards provided by this utility model;

[0022] Figure 2 for Figure 1 The diagram shows a side view of the support cylinder.

[0023] Figure 3 for Figure 2 The diagram shows the structure at point A.

[0024] Figure 4 for Figure 2 The diagram shows the structure at point B.

[0025] Figure 5 for Figure 2 The diagram shows a cross-sectional view of the slide.

[0026] Figure 6 for Figure 5 The diagram shows the structure at point C.

[0027] The following are the labels in the diagram: 1. Base; 2. Support cylinder; 3. Tension spring; 4. L-shaped clamp; 5. Slide cylinder; 6. Press rod; 7. Connecting rod one; 8. Slide rod; 9. Connecting rod two; 10. Guide rod; 11. Cylinder; 12. Spring; 13. Sleeve; 14. Sleeve rod; 15. Crank handle; 16. Worm gear; 17. Worm wheel; 18. Transmission rod; 19. Connecting cylinder; 20. Gear; 21. Rack. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0030] Please see Figures 1 to 6 A fixing device for soldering circuit boards includes: a base 1, an L-shaped clamping seat 4, a driving assembly, a sliding cylinder 5, and an adjusting assembly. Support cylinders 2 are symmetrically slidably mounted on the top of the base 1, and tension springs 3 are fixedly connected between the two support cylinders 2. Each support cylinder 2 has an L-shaped clamping seat 4 for clamping the circuit board above it. A driving assembly is installed between the base 1 and the support cylinders 2, driving the support cylinders 2 to move relative to each other, causing the L-shaped clamping seats 4 to clamp the circuit board. Sliding cylinders 5 are slidably mounted inside each support cylinder 2, and clearance grooves are provided on opposite sides of each sliding cylinder 5. An adjusting assembly is installed between the base 1 and the sliding cylinders 5, driving the sliding cylinders 5 to move up and down to adjust the height of the L-shaped clamping seats 4. The driving assembly includes: a push rod 6, a first connecting rod 7, a sliding rod 8, and a second connecting rod 9. A mounting cylinder is vertically fixedly connected to the top of the base 1, and a push rod 6 is slidably connected inside the mounting cylinder. The bottom of the push rod 6 extends out of the mounting cylinder and is rotatably connected to a first connecting rod 7. The other end of the first connecting rod 7... A sliding rod 8 is rotatably connected, with its bottom slidably connected to the base 1. A connecting rod 9 is symmetrically rotatably connected to the other end of the sliding rod 8, and the other ends of each connecting rod 9 are rotatably connected to the bottom of the corresponding support cylinder 2. A guide rod 10 is fixedly connected to the end of the sliding rod 8 away from the connecting rod 7. A cylinder 11 is fixedly connected to the top of the base 1. The end of the guide rod 10 away from the sliding rod 8 is placed inside the cylinder 11 and slidably connected to its inner wall. A spring 12 is fixedly connected to the inner wall of the cylinder 11, and the other end of the spring 12 is connected to the guide rod 10. The two L-shaped clamping seats 4 are fixedly connected, with a sleeve 13 fixedly connected to the inner axis of one of them and a sleeve rod 14 fixedly connected to the inner axis of the other, and a crank 15 fixedly connected to the outer axis of the other. The sleeve rod 14 is placed inside the sleeve 13 and is slidably connected to its inner wall. Both L-shaped clamping seats 4 are rotatably connected to the top of the corresponding slide cylinder 5, and friction plates are provided at their rotatable connection points. Grooves are provided on the opposite sides of both L-shaped clamping seats 4, and rubber pads are provided in the grooves.

[0031] It should be noted that: the outer wall of the sleeve rod 14 is provided with a protrusion, and the inner wall of the sleeve 13 is matched with the design of the sleeve rod 14 to ensure that the sleeve rod 14 can drive the sleeve 13 to rotate. At the same time, the sleeve 13 and the sleeve rod 14 can move with the corresponding support cylinder 2. The design of the transmission rod 18 and the connecting cylinder 19 is the same.

[0032] Please see Figure 5 and Figure 6 The adjustment assembly includes a worm gear 16, a worm wheel 17, and a transmission rod 18. A mounting bracket is fixedly connected to the top of the base 1. The worm gear 16 is rotatably connected inside the mounting bracket. A turntable is fixedly connected to the other end of the worm gear 16 extending out of the mounting bracket. A worm wheel 17 is meshed and connected above the worm gear 16. A transmission rod 18 is fixedly connected to the shaft of the worm wheel 17. Both ends of the transmission rod 18 extend outside the mounting base, and a connecting cylinder 19 is slidably connected to the outer wall of both ends. A gear 20 is fixedly connected to the opposite end of the connecting cylinder 19 through the interior of the corresponding slide cylinder 5. A rack 21 is meshed and connected to one side of each gear 20. The rack 21 is fixedly connected to the inner wall of the corresponding slide cylinder 5.

[0033] It should be noted that: Annular baffles are fixedly installed at equal intervals on the outer wall of the end of the connecting cylinder 19 near the gear 20. One of the annular baffles is located inside the slide cylinder 5, and the other is located outside the support cylinder 2. This allows the connecting cylinder 19 to move synchronously when the support cylinders 2 move closer or further away from each other on the top of the base 1. At the same time, the transmission effect of the transmission rod 18 is not affected when adjusting the height.

[0034] The working principle of the fixing device for circuit board welding provided by this utility model is as follows:

[0035] 1. The process of clamping the circuit board

[0036] When it is necessary to clamp and fix the circuit board, the staff first presses the lever 6; the lever 6 moves downward inside the mounting cylinder. Since the bottom of the lever 6 is rotatably connected to the connecting rod 7, the downward movement of the lever 6 will drive the connecting rod 7 to move downward.

[0037] The other end of the connecting rod 7 is rotatably connected to the slide rod 8. Under the push of the connecting rod 7, the slide rod 8 begins to slide on the top of the base 1. At the same time, the end of the slide rod 8 away from the connecting rod 7 is fixedly connected to the guide rod 10. The end of the guide rod 10 away from the slide rod 8 is placed inside the cylinder 11 and is slidably connected to the inner wall of the cylinder 11. The inner wall of the cylinder 11 is fixedly connected to the spring 12. The other end of the spring 12 is fixedly connected to the guide rod 10. So when the slide rod 8 moves, the guide rod 10 also moves inside the cylinder 11 and compresses the spring 12.

[0038] The other end of the slide rod 8 is symmetrically connected to the connecting rod 9, and the other end of the connecting rod 9 is rotatably connected to the bottom of the corresponding support cylinder 2. Utilizing the parallelogram principle, the movement of the slide rod 8 will push the two support cylinders 2 away from each other through the connecting rod 9. Since the two support cylinders 2 are fixedly connected by a tension spring 3, the tension spring 3 is stretched during the process of the support cylinders 2 moving away from each other.

[0039] Each of the support cylinders 2 is equipped with an L-shaped clamping seat 4 for holding the circuit board, and the L-shaped clamping seat 4 is rotatably connected to the top of the corresponding slide cylinder 5. Therefore, the L-shaped clamping seats 4 will move away from each other as the support cylinder 2 moves. At this time, the operator places the circuit board to be soldered between the two L-shaped clamping seats 4.

[0040] After slowly releasing the lever 6, the compressed spring 12 will release its elasticity, pushing the slide bar 8 to move in the opposite direction through the guide rod 10; at the same time, the stretched tension spring 3 will also release its tension, pulling the two support cylinders 2 closer to each other; thus, the two L-shaped clamping seats 4 will move closer to each other, placing the two ends of the circuit board in the grooves on the side wall of the L-shaped clamping seat 4; under the combined action of the tension spring 3 and the spring 12, the circuit board is stably clamped.

[0041] 2. Circuit board angle adjustment process

[0042] When the operator holds the crank handle 15 and turns it, the L-shaped clamp 4 will rotate synchronously. Through the drive of the sleeve rod 14 and the sleeve 13, the other L-shaped clamp 4 will also rotate synchronously, thereby rotating the circuit board to the appropriate angle as needed. The rotating connection between the L-shaped clamp 4 and the slide cylinder 5 is provided with a friction plate. After rotating to the correct position, the friction plate provides damping to prevent angle deviation during the welding process.

[0043] 3. Circuit board height adjustment process

[0044] After clamping the circuit board and adjusting the angle, the worker holds the turntable at the end of the worm gear 16, which is rotatably connected inside the mounting bracket, and rotates it to drive the worm gear 16 to rotate. Since the worm gear 16 is meshed with the worm wheel 17, the rotation of the worm gear 16 will cause the worm wheel 17 to rotate synchronously.

[0045] A transmission rod 18 is fixedly connected to the shaft of the worm gear 17. Both ends of the transmission rod 18 extend outside the mounting bracket, and both ends of the outer wall are slidably connected to the connecting cylinder 19. Therefore, the rotation of the worm gear 17 will drive the transmission rod 18 to rotate, and drive the connecting cylinder 19 with its sliding outer wall to rotate. The opposite ends of the connecting cylinder 19 are fixedly connected to the gear 20 through the clearance groove opened in the side wall of the corresponding slide cylinder 5. Therefore, the rotation of the connecting cylinder 19 will drive the gear 20 to rotate.

[0046] One side of each gear 20 is meshed with a rack 21, and each rack 21 is fixedly connected to the inner wall of the corresponding slide cylinder 5. Therefore, the rotation of the gear 20 will drive the slide cylinder 5 to move up and down inside the support cylinder 2 through the rack 21. The operator can adjust the slide cylinder 5 to a suitable height according to the requirements, thereby realizing the adjustment of the height of the L-shaped clamp 4 and the circuit board.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fixing device for soldering circuit boards, characterized in that, include: A base (1) is provided, and a support cylinder (2) is symmetrically slidably installed on the top of the base (1), and a tension spring (3) is fixedly connected between the two support cylinders (2); L-shaped clamping seat (4) is provided above the support cylinder (2) for clamping the circuit board; A drive assembly is installed between the base (1) and the support cylinder (2). The drive assembly drives the support cylinder (2) to move relative to each other, thereby causing the L-shaped clamping seat (4) to clamp the circuit board. The sliding cylinder (5) and the support cylinder (2) are both slidably installed with sliding cylinder (5), and the opposing sides of the sliding cylinder (5) are provided with clearance grooves; An adjustment component is installed between the base (1) and the slide (5). The adjustment component drives the slide (5) to move up and down to adjust the height of the L-shaped clamp (4).

2. The fixing device for circuit board welding according to claim 1, characterized in that, The drive assembly includes: a push rod (6), a first connecting rod (7), a slide rod (8), and a second connecting rod (9). The top of the base (1) is vertically fixedly connected to an installation cylinder. The push rod (6) is slidably connected inside the installation cylinder. The bottom of the push rod (6) extends out of the installation cylinder and is rotatably connected to the first connecting rod (7). The other end of the first connecting rod (7) is rotatably connected to the slide rod (8). The bottom of the slide rod (8) is slidably connected to the base (1). The other end of the slide rod (8) is symmetrically rotatably connected to the second connecting rod (9). The other end of the second connecting rod (9) is rotatably connected to the bottom of the corresponding support cylinder (2).

3. The fixing device for circuit board welding according to claim 2, characterized in that, A guide rod (10) is fixedly connected to the end of the slide rod (8) away from the connecting rod (7). A cylinder (11) is fixedly connected to the top of the base (1). One end of the guide rod (10) away from the slide rod (8) is placed inside the cylinder (11) and is slidably connected to its inner wall. A spring (12) is fixedly connected to the inner wall of the cylinder (11). The other end of the spring (12) is fixedly connected to the guide rod (10).

4. The fixing device for circuit board welding according to claim 1, characterized in that, One of the two L-shaped clamps (4) has a sleeve (13) fixedly connected to its inner axis, and the other has a sleeve rod (14) fixedly connected to its inner axis, and a crank (15) fixedly connected to its outer axis. The sleeve rod (14) is placed inside the sleeve (13) and is slidably connected to its inner wall.

5. The fixing device for circuit board welding according to claim 1, characterized in that, Both L-shaped clamps (4) are rotatably connected to the top of the corresponding slide (5), and friction plates are provided at their rotatable connection points.

6. The fixing device for circuit board welding according to claim 5, characterized in that, The two L-shaped clamps (4) have grooves on opposite sides, and rubber pads are provided in the grooves.

7. The fixing device for circuit board welding according to claim 1, characterized in that, The adjustment assembly includes a worm (16), a worm wheel (17), and a transmission rod (18). A mounting bracket is fixedly connected to the top of the base (1). The worm (16) is rotatably connected inside the mounting bracket. A turntable is fixedly connected to the other end of the worm (16) extending out of the mounting bracket. A worm wheel (17) is meshed above the worm (16). A transmission rod (18) is fixedly connected to the axis of the worm wheel (17). Both ends of the transmission rod (18) extend outside the mounting bracket, and a connecting cylinder (19) is slidably connected to the outer wall of both ends.

8. The fixing device for circuit board welding according to claim 7, characterized in that, One end of the connecting cylinder (19) opposite to the other passes through the interior of the corresponding slide cylinder (5) and is fixedly connected to a gear (20). One side of the gear (20) is meshed with a rack (21), and the rack (21) is fixedly connected to the inner wall of the corresponding slide cylinder (5).

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