An easily positioned clamping device for HDI circuit board processing
By designing a clamping device for the adjustment disc and the thread wheel, the problem of requiring two-handed operation in the existing technology is solved, realizing single-handed operation and efficient clamping, thereby improving the processing efficiency of HDI circuit boards and the practicality of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHIBOXIN TECHNOLOGY (ZHUHAI) CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-02
AI Technical Summary
In existing HDI circuit board processing, the positioning and clamping device requires two-hand operation, which increases labor costs and affects production efficiency and cost.
A clamping device including an adjustment disc, a reel, and a connecting rope is designed. The reel can be wound up by operating the adjustment disc with one hand, and the connecting rope is used to pull the clamp to hold the circuit board. The connecting rope is kept taut by a spring and a bushing to prevent the clamp from rebounding instantly and to provide a damping effect.
This invention enables one-handed operation of the clamping device, reducing the difficulty of use, improving the installation and processing efficiency of circuit boards, protecting circuit boards, and enhancing the practicality and stability of the clamping device.
Smart Images

Figure CN224319596U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of circuit board processing, and in particular to an easy-to-position clamping device for HDI circuit board processing. Background Technology
[0002] Positioning and clamping devices in HDI circuit board processing are key to improving production efficiency and product quality. Through flexible design and multi-functional clamping mechanisms, these devices can adapt to different production needs, ensuring the stability and accuracy of PCBs during processing, testing, and assembly.
[0003] According to the circuit board clamping and positioning device disclosed in Chinese Patent Publication No. CN221448717U, this utility model relates to the circuit board technology field, including a worktable and a soldering equipment body. The soldering equipment body is fixed to the surface of the worktable. The upper surface of the worktable is provided with a support plate located below the soldering equipment body. A first protective pad is bonded to the upper surface of the support plate. Two symmetrically distributed clamping plates are provided on the upper surface of the first protective pad. A second protective pad is fixedly connected to one side surface of the clamping plate. Through the cooperation of the clamping plates, the second protective pad, the working groove, the fixing block, the guide rod, and the spring, the circuit board can be easily positioned and clamped during soldering operations. The clamping plates and the second protective pad clamp the surface of the circuit board. Subsequently, the fixing block, in the working groove, cooperates with the guide rod and the spring to apply pressure to the clamping plates, achieving the effect of easy clamping and positioning, and preventing the situation where inconvenient positioning during circuit board soldering can lead to poor soldering accuracy.
[0004] According to the aforementioned patent, the process involves pulling the clamping plate away from the circuit board, placing the circuit board on the support plate, and finally using the spring force to pull the clamping plate back to clamp the circuit board. This method of using both hands to pull the support plate makes it difficult for one person to complete the circuit board processing independently, thereby increasing the labor costs required for circuit board processing and affecting the production cost of the circuit board. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an easy-to-position clamping device for HDI circuit board processing, so as to solve the technical problems mentioned in the background art.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0007] A clamping device for easy positioning in HDI circuit board processing includes a worktable. Two mounting slots are symmetrically opened on the top of the worktable. A wire groove 1 is opened on the outside of the two mounting slots inside the worktable. One side of the two wire groove 1 is connected by a wire groove 2. The wire groove 2 and the wire groove 1 are combined to form a C-shaped groove. A sliding groove penetrating the worktable is opened in the middle of the wire groove 2.
[0008] The fixture has two clamps, which are respectively connected to two mounting slots. Both ends of the opposite side of the two clamps are fixedly connected to the side wall of the mounting slot with springs.
[0009] The adjustment assembly includes a wire wheel, a slider, an adjustment disc, and a spring unit. The slider is slidably disposed in the groove. The side of the slider closest to the second wire groove is rotatably connected to the wire wheel through the spring unit. Two connecting ropes are wound on the wire wheel at intervals. The two ends of the connecting ropes extend into the first wire groove and are fixedly connected to the clamp in the mounting groove. The other side of the slider is connected to an adjustment disc that controls the rotation of the wire wheel.
[0010] Furthermore, two sets of auxiliary wheels are provided in the C-shaped groove, each set having four auxiliary wheels, and the four auxiliary wheels are symmetrically arranged in pairs on both sides of the C-shaped groove. One of the two auxiliary wheels on the same side is located at the junction of the second groove and the first groove, and the other auxiliary wheel is located in the first groove near the spring.
[0011] Furthermore, the two auxiliary wheels located in the first groove are respectively arranged in a one-to-one correspondence with the two springs, so that the connecting rope passes through the springs and connects to the clamp.
[0012] Furthermore, a lever is fixedly connected to the center of the outer wall of the adjustment disc, and a rocker arm is fixedly connected to the outer edge of the outer wall of the adjustment disc.
[0013] Furthermore, the elastic unit includes a spring, a bushing, and a connecting shaft. A circular groove is provided on the side of the reel near the slider. A connecting shaft is coaxially arranged in the groove. One end of the connecting shaft is fixedly connected to the inner wall of the groove, and the other end passes through the slider and is fixedly connected to the adjusting disc. A bushing is fitted on the outer side of the connecting shaft. The end of the bushing is fixedly connected to the slider. A spring is fixedly connected between the outer wall of the bushing and the inner wall of the groove.
[0014] Furthermore, it also includes a base, with a drive motor installed at the top center of the base, and the output shaft of the drive motor is fixedly connected to the bottom of the worktable.
[0015] In summary, this utility model has at least one of the following beneficial technical effects:
[0016] 1. This easy-to-position clamping device for HDI circuit board processing, through the setting of an adjustment disc, a wire wheel and a connecting line, allows the adjustment disc to be rotated with one hand to reel in the wire, thereby using the connecting rope to pull the clamps apart, realizing one-handed control of the clamping device, thus effectively reducing the difficulty of using the clamping device, improving the installation efficiency of the circuit board, and further improving the processing efficiency of the circuit board, making the clamping device more practical;
[0017] 2. This easy-to-position clamping device for HDI circuit board processing, through the setting of a spring and bushing, can ensure that the wire wheel is always subjected to a rotational force, so as to keep the connecting rope always taut. At the same time, the spring also provides a resistance to the clamp when the clamp is reset, thereby preventing the clamp from rebounding instantly and applying a large impact force to the circuit board, thus protecting the circuit board and improving the practicality of the clamping device. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of an easy-to-position clamping device for HDI circuit board processing according to the present invention.
[0020] Figure 2 This is a schematic diagram of the internal structure of the base in an easy-to-position clamping device for HDI circuit board processing according to the present invention.
[0021] Figure 3 This is a schematic diagram of the C-shaped groove in an easy-to-position clamping device for HDI circuit board processing according to the present invention.
[0022] Figure 4 This is a schematic diagram of the elastic unit in an easy-to-position clamping device for HDI circuit board processing according to the present invention.
[0023] In the diagram, 1. Workbench; 2. Fixture; 3. Adjustment assembly; 31. Thread wheel; 32. Slider; 33. Adjustment disc; 34. Elastic unit; 341. Spring spring; 342. Bushing; 343. Connecting shaft; 4. Mounting groove; 5. Thread groove one; 6. Thread groove two; 7. Slide groove; 8. Spring; 9. Connecting rope; 10. Auxiliary wheel; 11. Lever; 12. Rocker arm; 13. Circular groove; 14. Base; 15. Drive motor. Detailed Implementation
[0024] The present invention will be further described in detail below with reference to the accompanying drawings.
[0025] Example:
[0026] Reference Figure 1 - Figure 4 The present invention discloses an easy-to-position clamping device for HDI circuit board processing, including a worktable 1. Two mounting slots 4 are symmetrically opened on the top of the worktable 1. A wire groove 5 is opened on the outside of the two mounting slots 4 inside the worktable 1. One side of the two wire grooves 5 is connected by a wire groove 6. The wire groove 6 and the wire groove 5 are joined together to form a C-shaped groove. A sliding groove 7 that penetrates the worktable 1 is opened in the middle of the wire groove 6.
[0027] There are two clamps 2, which are respectively connected to two mounting slots 4. The two ends of the opposite side of the two clamps 2 are fixedly connected to the side wall of the mounting slot 4 with springs 8.
[0028] The adjustment assembly 3 includes a wire wheel 31, a slider 32, an adjustment disc 33, and a spring unit 34. The slider 32 is slidably disposed in the groove 7. The side of the slider 32 closest to the second wire groove 6 is rotatably connected to the wire wheel 31 through the spring unit 34. Two connecting ropes 9 are wound around the wire wheel 31 at intervals. The two ends of the connecting ropes 9 extend into the first wire groove 5 and into the mounting groove 4 to be fixedly connected to the clamp 2. The other side of the slider 32 is connected to the adjustment disc 33, which controls the rotation of the wire wheel 31.
[0029] In this embodiment, observation Figure 1 It can be observed that by symmetrically opening two mounting slots 4 on the top of the workbench 1, and placing clamps 2 inside the mounting slots 4, springs 8 are fixedly connected to the side walls of the mounting slots 4 at both ends of the opposite sides of the two clamps 2. The elastic force of the springs 8 can be used to push the clamps 2 closer to the circuit board, so that the two clamps 2 clamp the circuit board. And combined with Figure 3 It can be observed that wire grooves 5 are provided on the outer sides of the two mounting slots 4 inside the workbench 1. One side of each wire groove 5 is connected by a wire groove 6. The wire groove 6 and the wire groove 5 are joined to form a C-shaped groove. A sliding groove 7 that penetrates the workbench 1 is provided in the middle of the wire groove 6. Subsequently, it is further combined with... Figure 2 As can be seen, an adjustment component 3 is provided in the slide groove 7. The adjustment component 3 includes a spool 31, a slider 32, an adjustment disc 33, and a spring unit 34. The slider 32 is slidably disposed in the slide groove 7. The side of the slider 32 closest to the second spool 6 is rotatably connected to the spool 31 through the spring unit 34. Two connecting ropes 9 are wound on the spool 31 at intervals. The two ends of the connecting ropes 9 extend into the first spool 5 and into the mounting groove 4 to be fixedly connected to the clamp 2. The other side of the slider 32 is connected to the adjustment disc 33, which controls the rotation of the spool 31.
[0030] When the clamping device is needed, the spool 31 can be rotated to take in the wire by rotating the adjustment disc 33, so that the corresponding clamps 2 are pulled away from each other by the connecting rope 9. Then, the circuit board is placed between the two clamps 2, and the adjustment disc 33 is released. Under the push of the spring 8, the clamps 2 can clamp the circuit board. The clamps 2 can be controlled by one hand, which can effectively reduce the difficulty of using the clamping device and thus improve the practicality of the clamping device.
[0031] When the spring 8 pushes the clamp 2 to reset, the spool 31 will rotate and release the wire under the pull of the connecting rope 9. When the clamp 2 can no longer move after contacting the circuit board, the spool 31 will continue to rotate under the action of inertia, which will cause the connecting rope 9 to loosen. This will require the clamp 2 to be idled for a while to tighten the connecting rope 9 before the clamp 2 can be moved. This will affect the efficiency of the clamping device and thus affect the processing efficiency of the circuit board.
[0032] Therefore, observe Figure 4 It can be seen that the elastic unit 34 includes a spring 341, a bushing 342, and a connecting shaft 343. A circular groove 13 is provided on the side of the reel 31 near the slider 32. The connecting shaft 343 is coaxially arranged in the circular groove 13. One end of the connecting shaft 343 is fixedly connected to the inner wall of the circular groove 13, and the other end passes through the slider 32 and is fixedly connected to the adjusting plate 33. The bushing 342 is sleeved on the outside of the connecting shaft 343. The end of the bushing 342 is fixedly connected to the slider 32. The spring 341 is fixedly connected between the outer wall of the bushing 342 and the inner wall of the circular groove 13.
[0033] At this time, when the clamp 2 is reset, the rotating wheel 31 will be resisted by the spring 341, which will provide a damping effect to the clamp 2 and prevent the clamp 2 from rebounding and damaging the circuit board. At the same time, after the clamp 2 clamps the circuit board, the spring 341 can provide a rotational tendency to the wheel 31 to prevent the wheel 31 from continuing to rotate due to inertia, thus effectively ensuring that the connecting rope 9 is in a taut state and improving the practicality of the clamping device.
[0034] In order to ensure the tension of the connecting rope 9 and to avoid affecting the reset of the clamp 2, the force provided by the spring 341 should be less than that provided by the spring 8 when selecting materials, so as to ensure the stability of the adjustment component 3.
[0035] Finally, because the two clamps 2 and the springs 8 connected to the corresponding clamps 2 are of the same specification, the circuit board will be positioned in the center of the workbench 1 under the action of the elastic force. However, the margin left on the edge of the circuit board is different depending on the design and usage scenario. This results in the wiring distribution on the surface of the circuit board not being in the center when the circuit board is centered.
[0036] Therefore in Figure 3 It can be seen that by opening a groove 7 at the center of the second groove 6 and placing the slider 32 in the groove 7, after the circuit board is clamped, by moving the slider 32, the slider 32 moves the wire wheel 31 within the second groove 6, thereby reducing the path distance between the clamp 2 and the wire wheel 31 in the forward direction of the wire wheel 31, and slackening the connecting rope 9. At this time, under the push of the spring 8, the clamp 2 can move forward a greater distance to tighten the connecting rope 9. Similarly, the clamp 2 on the opposite side in the forward direction of the wire wheel 31 will increase the path distance between it and the wire wheel 31, causing the connecting rope 9 to pull the clamp 2 to move. With the two clamps 2 moving in the same direction, the position of the circuit board can be adjusted, thereby centering the axial area of the circuit board, facilitating the positioning of the circuit board, and improving the processing efficiency of the circuit board.
[0037] In a further preferred embodiment of this utility model, such as Figure 3 As shown, two sets of auxiliary wheels 10 are provided in the C-shaped groove. Each set of auxiliary wheels 10 has four wheels, and the four auxiliary wheels 10 are symmetrically arranged in pairs on both sides of the C-shaped groove. One of the two auxiliary wheels 10 on the same side is located at the junction of the second groove 6 and the first groove, and the other auxiliary wheel 10 is located in the first groove 5 near the spring 8.
[0038] The two auxiliary wheels 10 located in the groove 5 are respectively arranged in a one-to-one correspondence with the two springs 8, so that the connecting rope 9 passes through the springs 8 and connects to the clamp 2.
[0039] In this embodiment, since the connecting rope 9 needs to pass through the second groove 6 and the first groove 5 to connect with the clamp 2, in order to avoid friction damage between the connecting rope 9 and the inner wall of the second groove 6 or the first groove 5 when it moves, observation is required. Figure 3 It can be observed that two sets of auxiliary wheels 10 are provided in the C-shaped groove, with four auxiliary wheels 10 in each set. The four auxiliary wheels 10 are symmetrically arranged in pairs on both sides of the C-shaped groove. One of the two auxiliary wheels 10 on the same side is located at the junction of the second groove 6 and the first groove, and the other auxiliary wheel 10 is located in the first groove 5 near the spring 8. The two auxiliary wheels 10 located in the first groove 5 are respectively arranged in a one-to-one correspondence with the two springs 8, so that the connecting rope 9 passes through the spring 8 and connects to the clamp 2. This can effectively improve the service life of the connecting rope 9. At the same time, the connecting rope 9 can also provide a limit for the spring 8, preventing the spring 8 from bending abnormally and bouncing.
[0040] In a further preferred embodiment of this utility model, such as Figure 4 As shown, a lever 11 is fixedly connected to the center of the outer wall of the adjustment disc 33, and a rocker arm 12 is fixedly connected to the outer edge of the outer wall of the adjustment disc 33.
[0041] In this embodiment, by connecting a lever 11 to the center of the outer wall of the adjustment plate 33, it is easy to control the slider 32 to slide in the groove 7, thereby making the position adjustment of the circuit board simpler.
[0042] By fixing a rocker arm 12 to the outer edge of the outer wall of the adjustment plate 33, it is easy to control the rotation of the adjustment plate 33, making the control of the clamp 2 simpler.
[0043] In a further preferred embodiment of this utility model, such as Figure 2 As shown, it also includes a base 14, and a drive motor 15 is installed at the top center of the base 14. The output shaft of the drive motor 15 is fixedly connected to the bottom of the worktable 1.
[0044] In this embodiment, a base 14 is provided, and a drive motor 15 is installed inside the base 14. The output shaft of the drive motor 15 is fixedly connected to the bottom of the worktable 1. The worktable 1 can be rotated by the drive motor 15 to change the processing angle of the circuit board, thereby further improving the processing efficiency of the circuit board.
[0045] The implementation principle of the above embodiment is as follows: by rotating the rocker arm 12, the adjustment disk 33 is rotated, thereby allowing the wire wheel 31 to take in the wire and the clamps 2 to move away from each other. At this time, the circuit board can be placed on the workbench 1. Then, the rocker arm 12 is released, and the clamp 2 will clamp the circuit board under the push of the spring 8. The adjustment method of the clamp 2 can be operated with one hand, which makes the use of the clamping device simpler and more convenient.
[0046] When it is necessary to adjust the horizontal position of the circuit board, the slider 32 is moved in the slide groove 7 by moving the lever 11, so that the two clamps 2 move the circuit board and realize the horizontal position adjustment of the circuit board. When it is necessary to adjust the angle of the circuit board, the worktable 1 can be rotated by turning on the drive motor 15, so as to adjust the angle of the circuit board and make the circuit board processing more flexible.
[0047] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A clamping device for easy positioning in HDI circuit board processing, characterized in that, It includes a workbench (1), with two symmetrical mounting slots (4) on the top of the workbench (1). Inside the workbench (1), on the outside of the two mounting slots (4), there are two wire grooves (5). One side of the two wire grooves (5) is connected by a wire groove (6). The wire groove (6) and the wire groove (5) are joined together to form a C-shaped groove. A sliding groove (7) that passes through the workbench (1) is opened in the middle of the wire groove (6). The clamp (2) is provided in two parts. The two clamps (2) are respectively connected in two mounting slots (4). The two ends of the opposite side of the two clamps (2) are fixedly connected to the side wall of the mounting slot (4) with springs (8). The adjustment assembly (3) includes a wire wheel (31), a slider (32), an adjustment disc (33), and an elastic unit (34). The slider (32) is slidably disposed in the groove (7). The side of the slider (32) near the second wire groove (6) is rotatably connected to the wire wheel (31) through the elastic unit (34). Two connecting ropes (9) are wound on the wire wheel (31) at intervals. The two ends of the connecting ropes (9) extend into the first wire groove (5) and are fixedly connected to the clamp (2) in the mounting groove (4). The other side of the slider (32) is connected to the adjustment disc (33) that controls the rotation of the wire wheel (31).
2. The easy-to-position clamping device for HDI circuit board processing according to claim 1, characterized in that, Two sets of auxiliary wheels (10) are provided in the C-shaped groove. Each set of auxiliary wheels (10) has four wheels, and the four auxiliary wheels (10) are symmetrically arranged on both sides of the C-shaped groove. One of the two auxiliary wheels (10) on the same side is located at the junction of the second groove (6) and the first groove (5), and the other auxiliary wheel (10) is located in the first groove (5) near the spring (8).
3. The easy-to-position clamping device for HDI circuit board processing according to claim 2, characterized in that, The two auxiliary wheels (10) located in the first groove (5) are respectively arranged in a one-to-one correspondence with the two springs (8), so that the connecting rope (9) passes through the springs (8) and connects to the clamp (2).
4. The easy-to-position clamping device for HDI circuit board processing according to claim 3, characterized in that, A lever (11) is fixedly connected to the center of the outer wall of the adjustment disc (33), and a rocker arm (12) is fixedly connected to the outer edge of the outer wall of the adjustment disc (33).
5. The easy-to-position clamping device for HDI circuit board processing according to claim 4, characterized in that, The elastic unit (34) includes a spring (341), a bushing (342), and a connecting shaft (343). The spool (31) has a circular groove (13) on the side near the slider (32). The connecting shaft (343) is coaxially arranged in the circular groove (13). One end of the connecting shaft (343) is fixedly connected to the inner wall of the circular groove (13), and the other end passes through the slider (32) and is fixedly connected to the adjusting plate (33). The bushing (342) is sleeved on the outside of the connecting shaft (343). The end of the bushing (342) is fixedly connected to the slider (32). The spring (341) is fixedly connected between the outer wall of the bushing (342) and the inner wall of the circular groove (13).
6. The easy-to-position clamping device for HDI circuit board processing according to claim 5, characterized in that, It also includes a base (14), on which a drive motor (15) is installed at the top center, and the output shaft of the drive motor (15) is fixedly connected to the bottom of the worktable (1).