Fixing and clamping device for circuit board processing

Abstract

The utility model discloses a fixed clamping device for circuit board processing, which comprises a clamping plate, two sides of the clamping plate are provided with a clamping device, the clamping device comprises a clamping sleeve, an unlocking sleeve, an unlocking groove, a clamping rod, a clamping ball, an adaptive groove and a clamping groove, the unlocking groove is arranged in the unlocking sleeve, the clamping ball is arranged in the adaptive groove in a rolling manner, and the clamping rod is arranged in the clamping groove. A reinforcing mechanism is installed on the outer side of the clamping sleeve and comprises a releasing plate, a connecting plate, clamping plates and a releasing groove, the multiple clamping plates are connected to one side of the connecting plate, the releasing groove is formed in the releasing plate, an adjusting device is arranged on the outer side of the clamping plate, and the adjusting device is arranged on the outer side of the clamping plate. The utility model not only solves the problems of fixed height, complicated replacement and poor stability of the traditional device, but also remarkably improves the practicability and safety of the equipment through mechanical linkage and multiple protection, and has important significance for improving the processing efficiency of the circuit board and the reliability of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of circuit board processing and clamping technology, and more specifically, it relates to a circuit board processing and clamping device. Background Technology

[0002] In the field of fixed clamping devices for circuit board processing, the flexibility of the clamping structure, the ease of replacing the clamping plate, and the stability of the installation structure are key factors affecting the performance. However, fixed clamping devices on the market still have many technical defects in practical applications. These problems not only affect processing efficiency but may also reduce the accuracy and ease of operation of circuit board processing.

[0003] The primary problem is the significant lack of flexibility in the clamping structure. Existing clamping structures have significant defects: First, the fixed clamping structure is too simple and cannot adapt to the clamping requirements of circuit boards of different widths; second, the fixed design of the device height limits the adjustment space during processing; and third, the lack of a flexible adjustment mechanism makes it difficult to guarantee clamping accuracy. This design defect not only reduces the applicability of the device, but may also damage the circuit board due to improper clamping, failing to meet the requirements of modern circuit board processing for precise positioning.

[0004] More significantly, the ease of replacement of the clamping plate is severely lacking. Existing clamping plate installation methods have significant problems: First, the disassembly and assembly of the clamping plate requires specialized tools, making the operation cumbersome and time-consuming; second, the complexity of the fixing structure seriously affects the replacement efficiency of the clamping plate; third, when different thickness circuit boards require the replacement of clamping plates with different slot widths, the cumbersome replacement process significantly reduces production efficiency. The shortcomings of this traditional installation method not only limit the adaptability of the equipment, but may also lead to damage to the clamping plate due to improper operation, affecting the continuity of production.

[0005] Most critically, the stability of the installation structure is seriously insufficient. Although some equipment has achieved quick replacement of the clamping plate through design improvements, this design still has obvious defects: First, the simple connection structure is difficult to withstand the vibration of the equipment during operation. After long-term use, the connection is prone to loosening. The instability of the structure may cause the clamping plate to shift position, affecting the circuit board processing accuracy. This structural design deficiency not only affects the safety of the equipment, but may also bring major quality hazards due to installation failure. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the problems existing in the prior art, the present invention provides a fixing clamping device for circuit board processing to solve the technical problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a fixed clamping device for circuit board processing, comprising a clamping plate, with locking devices installed on both sides of the clamping plate. Each locking device includes a locking sleeve, an unlocking sleeve, an unlocking groove, a locking rod, a locking ball, an adapter groove, and a locking slot. The locking sleeve is detachably fitted onto the outside of the locking rod, and the unlocking sleeve is slidably fitted onto the outside of the locking sleeve. The unlocking slot is located within the unlocking sleeve. The locking rod is fixedly connected to one side of the clamping plate. The locking ball is rotatably disposed in the adapter groove, and a portion of the locking ball is engaged in the locking slot. The adapter groove is located within the locking sleeve, and the locking slot is located within the locking rod. A reinforcement mechanism is installed on the outside of the locking sleeve. The reinforcement mechanism includes a release plate, a connecting plate, a locking plate, and a release slot. The release plate is rotatably installed within the locking sleeve. The connecting plate is fixedly connected to one side of the unlocking sleeve, and multiple locking plates are fixedly connected to one side of the connecting plate. The release slot is located on the release plate. An adjustment device is provided on the outside of the clamping plate.

[0010] The present invention is further configured such that the adjusting device includes a lifting sleeve, a base, a fixed sleeve, a hydraulic cylinder and a hydraulic rod. The fixed sleeve is fixedly installed on the base, the lifting sleeve is detachably installed inside the fixed sleeve, the hydraulic cylinder is detachably installed in the fixed sleeve, one end of the hydraulic rod is connected to the output end of the hydraulic cylinder, the other end of the hydraulic rod is connected to the top end inside the lifting sleeve, and the lifting sleeve is slidably arranged in the fixed sleeve.

[0011] The present invention is further configured such that a movable frame is detachably provided on one side of the clamping plate, a cylinder is detachably provided on one side of the lifting sleeve, a piston rod is connected to the output end of the cylinder, and the other end of the piston rod is detachably connected to the movable frame.

[0012] The present invention is further configured such that a movable sleeve is fixedly provided on one side of the movable frame, a fixed rod is fixedly provided on one side of the lifting sleeve, and the movable sleeve is slidably sleeved on the outside of the fixed rod.

[0013] The present invention is further configured such that a plurality of slots are provided on one side of the clamping plate.

[0014] The present invention is further provided with an unlocking plate fixedly provided on the outside of the unlocking sleeve, and the unlocking plate is provided to facilitate the use of the unlocking sleeve.

[0015] The present invention is further configured such that a reset spring is connected to one side of the unlocking sleeve, and the other end of the reset spring is connected to the release plate in contact. The reset spring enables the unlocking sleeve to be stably reset and provides a certain pre-tightening force to the unlocking sleeve.

[0016] The present invention is further configured such that the adapter groove is a concave structure design, and the special structure design prevents the locking ball from rolling into the locking sleeve.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides a fixing clamping device for circuit board processing, which has the following advantages:

[0019] 1. The adjustment device constructs a highly efficient height adjustment system through the precise cooperation of the lifting sleeve, base, fixed sleeve, hydraulic cylinder and hydraulic rod. The sliding design of the lifting sleeve in the fixed sleeve provides stable guidance. The design of the hydraulic cylinder driving the hydraulic rod realizes precise lifting. The linkage design of the cylinder, piston rod and moving frame ensures the synchronous movement of the clamping plate. This design not only solves the problem of fixed height of traditional devices, but also provides a smooth adjustment process through hydraulic drive, effectively improving the applicability and ease of operation of the device.

[0020] 2. The locking device, through the coordinated action of the locking sleeve, unlocking sleeve, unlocking groove, locking rod, locking ball, adapter groove, and locking slot, constructs a convenient installation system. The rolling cooperation between the locking ball and the locking groove provides a reliable locking mechanism, while the sliding cooperation between the unlocking sleeve and the unlocking groove enables the flexible disengagement of the locking ball. The concave adapter groove design ensures the precise positioning of the locking ball. This design not only eliminates the traditional installation method that requires professional tools, but also achieves rapid disassembly and assembly of the clamping plate through a mechanical linkage structure, significantly improving the efficiency of clamping plate replacement.

[0021] 3. The reinforcement mechanism constructs a reliable locking system through the precise cooperation of the release plate, connecting plate, clamping plate, and release groove. The rotational cooperation between the release plate and the release groove provides stable guidance, the preload of the return spring ensures the stability of the unlocking sleeve position, and the distributed limit of multiple clamping plates realizes the reliable locking of the unlocking sleeve. This structure not only provides a stable connection guarantee through multiple mechanical locking, but also effectively prevents structural loosening during equipment operation through the preload of elastic elements, ensuring the stability and safety of the clamping plate installation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a circuit board processing fixing clamping device according to the present invention;

[0023] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the locking device and reinforcement mechanism in this utility model;

[0025] Figure 4This is a cross-sectional structural diagram of the locking device and the reinforcing mechanism in this utility model;

[0026] Figure 5 This is a cross-sectional view of the locking sleeve and unlocking sleeve in this utility model.

[0027] In the diagram: 1. Clamping plate; 2. Locking sleeve; 3. Unlocking sleeve; 4. Unlocking groove; 5. Locking rod; 6. Locking ball; 7. Adaptor groove; 8. Locking groove; 9. Release plate; 10. Connecting plate; 11. Locking plate; 12. Release groove; 13. Lifting sleeve; 14. Base; 15. Fixing sleeve; 16. Hydraulic cylinder; 17. Hydraulic rod; 18. Moving frame; 19. Cylinder; 20. Piston rod; 21. Moving sleeve; 22. Fixing rod; 23. Locking groove; 24. Unlocking plate; 25. Return spring. Detailed Implementation

[0028] It should be noted that, where there is no conflict, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figures 1-5 A circuit board processing clamping device includes a clamping plate 1. Clamping devices are installed on both sides of the clamping plate 1. Each clamping device includes a clamping sleeve 2, an unlocking sleeve 3, an unlocking groove 4, a clamping rod 5, a clamping ball 6, an adapter groove 7, and a clamping slot 8. The clamping sleeve 2 is detachably fitted onto the outside of the clamping rod 5. The unlocking sleeve 3 is slidably fitted onto the outside of the clamping sleeve 2. The unlocking groove 4 is formed in the unlocking sleeve 3. The clamping rod 5 is fixedly connected to one side of the clamping plate 1. The clamping ball 6 is rotatably disposed in the adapter groove 7. Part 6 is inserted into the locking groove 8. The adapter groove 7 is opened in the locking sleeve 2. The locking groove 8 is opened in the locking rod 5. A reinforcement mechanism is installed on the outside of the locking sleeve 2. The reinforcement mechanism includes a release plate 9, a connecting plate 10, a locking plate 11 and a release groove 12. The release plate 9 is rotatably installed in the locking sleeve 2. The connecting plate 10 is fixedly connected to one side of the unlocking sleeve 3. Multiple locking plates 11 are fixedly connected to one side of the connecting plate 10. The release groove 12 is opened on the release plate 9. An adjustment device is provided on the outside of the clamping plate 1.

[0032] The adjusting device includes a lifting sleeve 13, a base 14, a fixed sleeve 15, a hydraulic cylinder 16, and a hydraulic rod 17. The fixed sleeve 15 is fixedly installed on the base 14. The lifting sleeve 13 is detachably installed inside the fixed sleeve 15. The hydraulic cylinder 16 is detachably installed in the fixed sleeve 15. One end of the hydraulic rod 17 is connected to the output end of the hydraulic cylinder 16, and the other end of the hydraulic rod 17 is connected to the top end inside the lifting sleeve 13. The lifting sleeve 13 is slidably arranged in the fixed sleeve 15.

[0033] A movable frame 18 is detachably provided on one side of the clamping plate 1, and a cylinder 19 is detachably provided on one side of the lifting sleeve 13. A piston rod 20 is connected to the output end of the cylinder 19, and the other end of the piston rod 20 is detachably connected to the movable frame 18.

[0034] A movable sleeve 21 is fixedly provided on one side of the movable frame 18, and a fixed rod 22 is fixedly provided on one side of the lifting sleeve 13. The movable sleeve 21 is slidably sleeved on the outside of the fixed rod 22.

[0035] In this embodiment, when the device is needed, first replace the clamping plate 1 with the corresponding width slot 23, then align one edge of the circuit board with the slot 23, and then simultaneously open the two cylinders 19, so that the two cylinders 19 simultaneously push the piston rod 20 forward. Then the piston rod 20 drives the moving frame 18 and the clamping plate 1 to move inward, and the moving frame 18 drives the moving sleeve 21 to slide along the fixed rod 22. When the two clamping plates 1 respectively contact the circuit board, and the two sides of the circuit board are engaged in the corresponding slots 23, the circuit board is fixed and clamped. Then close the cylinders 19, release the circuit board, and then selectively open the hydraulic cylinders 16 installed in the two fixed sleeves 15 according to the usage requirements. The hydraulic cylinders 16 synchronously drive the hydraulic rod 17 set at the output end to push the lifting sleeve 13 upward, so that the lifting sleeve 13 slides upward along the fixed sleeve 15, and at the same time drives the moving frame 18 and the clamping plate 1 and other components to rise, thereby driving the fixed and clamped circuit board to rise. When the appropriate height is adjusted, the hydraulic cylinders 16 are closed.

[0036] Please see Figures 3-5 As a further implementation of the overall equipment: multiple slots 23 are provided on one side of the clamping plate 1.

[0037] An unlocking plate 24 is fixedly provided on the outside of the unlocking sleeve 3.

[0038] A reset spring 25 is connected to one side of the unlocking sleeve 3, and the other end of the reset spring 25 is connected to the release plate 9 in a contact manner.

[0039] The adapter slot 7 has a concave structure design.

[0040] More specifically, when the clamping plate 1 needs to be replaced, first rotate the release plate 9, causing the release plate 9 to rotate the release groove 12. When the release groove 12 rotates to the position corresponding to the locking plate 11, push the unlocking plate 24, causing the unlocking plate 24 to slide the unlocking sleeve 3. The unlocking sleeve 3 then causes the connecting plate 10 and multiple locking plates 11 connected to one side to slide. The unlocking sleeve 3 and the release plate 9 cooperate to press the return spring 25. At the same time, the unlocking sleeve 3 causes the unlocking groove 4 opened on the inner side to slide. When the return spring 25 is pressed to its limit, the locking plate 11 near one of the unlocking sleeves 3 just passes through the release groove 12 and moves to the other side of the release plate 9. Then rotate again. Release plate 9 causes release groove 12 to rotate to a position not corresponding to locking plate 11. Then, connecting plate 10 and locking plate 11 cooperate to limit unlocking sleeve 3 to one side of release plate 9. At the same time, unlocking groove 4 moves to the position corresponding to adapter groove 7. Then, pull locking sleeve 2 to one side. Then, the inner wall of locking groove 8 presses against the outer wall of locking ball 6, causing locking ball 6 to roll along adapter groove 7 and roll out of locking groove 8. Part of locking ball 6 enters unlocking groove 4, and then locking sleeve 2 can be completely removed. Then, follow the above steps to remove other locking sleeves 2. Then, remove clamping plate 1 for replacement. Replacement is complete. Then, the new clamping plate 1 is reinstalled on one side of the movable frame 18, and the locking rod 5 fixedly connected to one side of the clamping plate 1 passes through the pre-drilled mounting hole on the movable frame 18. Then, the release plate 9 is rotated again, and the release plate 9 drives the release groove 12 to rotate. When the release groove 12 rotates to the position corresponding to the locking plate 11, the return spring 25 pushes the unlocking sleeve 3 to slide back to its original position. Then, the unlocking sleeve 3 drives the unlocking plate 24 and the connecting plate 10 to slide back to their original positions. Then, the connecting plate 10 drives the three locking plates 11 to slide back to their original positions. At the same time, the unlocking sleeve 3 drives the unlocking groove 4 opened on the inner side to slide back to its original position. Then, the inner wall of the unlocking groove 4 presses against the outer wall of the locking ball 6, so that the locking ball 6 is properly fitted. The ball 6 rolls back into the groove 7, and then part of the locking ball 6 re-locks into the locking groove 8, so that the locking sleeve 2 and the locking rod 5 re-establish the locking relationship. At this time, the reset spring 25 is fully reset, and the other two locking plates 11 move to both sides of the release plate 9 respectively. Then, the release plate 9 continues to rotate, so that the release plate 9 drives the release groove 12 to rotate to a position that does not correspond to the locking plate 11. Then, the connecting plate 10 and the two locking plates 11 cooperate to limit the unlocking sleeve 3 to one side of the release plate 9. With the pre-tightening force applied to the unlocking sleeve 3 by the reset spring 25, the unlocking sleeve 3 is guaranteed not to move easily, thereby ensuring the stable installation of the clamping plate 1 and thus ensuring the normal use of the equipment.

[0041] In summary, when using or operating the equipment: First, replace the clamping plate 1 with the corresponding width slot 23. Then, align one edge of the circuit board with the slot 23. Simultaneously open the two cylinders 19, causing them to push the piston rod 20 forward. The piston rod 20 then moves the moving frame 18 and clamping plate 1 inward. The moving frame 18 moves the moving sleeve 21 along the fixed rod 22. When the two clamping plates 1 contact the circuit board and the edges of the circuit board are engaged in the corresponding slots 23, the circuit board is clamped. Then, close the cylinders 19 to release the circuit board. Then, selectively open the hydraulic cylinders 16 installed in the two fixed sleeves 15 according to the usage requirements. The hydraulic cylinders 16 simultaneously drive the hydraulic rod 17 at the output end to push the lifting sleeve 13 upward, causing the lifting sleeve 13 to slide upward along the fixed sleeve 15. This also causes the moving frame 18 and clamping plate 1 to rise, thereby raising the clamped circuit board. Once the appropriate height is reached, close the hydraulic cylinders 16.

[0042] When the clamping plate 1 needs to be replaced, first rotate the release plate 9, causing the release plate 9 to rotate the release groove 12. When the release groove 12 rotates to the position corresponding to the locking plate 11, push the unlocking plate 24, causing the unlocking plate 24 to slide the unlocking sleeve 3. The unlocking sleeve 3 then causes the connecting plate 10 and multiple locking plates 11 connected to one side to slide. The unlocking sleeve 3 and the release plate 9 will cooperate to press the return spring 25. At the same time, the unlocking sleeve 3 will cause the unlocking groove 4 opened on the inner side to slide. When the return spring 25 is pressed to its limit, the locking plate 11 near one of the unlocking sleeves 3 just passes through the release groove 12 and moves to the other side of the release plate 9. Then rotate the release plate again. 9. This causes the release plate 9 to rotate the release groove 12 to a position that does not correspond to the locking plate 11. Then, the connecting plate 10 and the locking plate 11 cooperate to limit the unlocking sleeve 3 to one side of the release plate 9. At the same time, the unlocking groove 4 moves to the position corresponding to the adapter groove 7. Then, pull the locking sleeve 2 to one side. Then, the inner wall of the locking groove 8 presses against the outer wall of the locking ball 6, causing the locking ball 6 to roll along the adapter groove 7 and roll out of the locking groove 8. This allows part of the locking ball 6 to enter the unlocking groove 4, and then the locking sleeve 2 can be completely removed. Then, follow the above steps to remove the other locking sleeves 2. Then, remove the clamping plate 1 for replacement. After replacement, Reinstall the new clamping plate 1 onto one side of the movable frame 18, ensuring that the locking rod 5, which is fixedly connected to one side of the clamping plate 1, passes through the pre-drilled mounting hole on the movable frame 18. Then, rotate the release plate 9 again. The release plate 9 drives the release groove 12 to rotate. When the release groove 12 rotates to the position corresponding to the locking plate 11, the return spring 25 pushes the unlocking sleeve 3 to slide back to its original position. Then, the unlocking sleeve 3 drives the unlocking plate 24 and the connecting plate 10 to slide back to their original positions. Then, the connecting plate 10 drives the three locking plates 11 to slide back to their original positions. At the same time, the unlocking sleeve 3 drives the unlocking groove 4 opened on the inner side to slide back to its original position. Then, the inner wall of the unlocking groove 4 presses against the outer wall of the locking ball 6, causing the locking ball 6 to fit in the adapter groove. 7. Rolling reset, then part of the locking ball 6 re-locks into the locking groove 8, so that the locking sleeve 2 and the locking rod 5 re-establish the locking relationship. At this time, the reset spring 25 is fully reset, and the other two locking plates 11 move to both sides of the release plate 9 respectively. Then, the release plate 9 continues to rotate, so that the release plate 9 drives the release groove 12 to rotate to a position that does not correspond to the locking plate 11. Then, the connecting plate 10 and the two locking plates 11 cooperate to limit the unlocking sleeve 3 to one side of the release plate 9. With the pre-tightening force applied to the unlocking sleeve 3 by the reset spring 25, it is ensured that the unlocking sleeve 3 will not move easily, thereby ensuring the stable installation of the clamping plate 1 and thus ensuring the normal use of the equipment.

[0043] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fixing clamping device for circuit board processing, comprising a clamping plate (1), characterized in that: The clamping plate (1) is equipped with locking devices on both sides. The locking devices include a locking sleeve (2), an unlocking sleeve (3), an unlocking groove (4), a locking rod (5), a locking ball (6), an adapter groove (7), and a locking slot (8). The locking sleeve (2) is detachably fitted on the outside of the locking rod (5). The unlocking sleeve (3) is slidably fitted on the outside of the locking sleeve (2). The unlocking groove (4) is opened in the unlocking sleeve (3). The locking rod (5) is fixedly connected to one side of the clamping plate (1). The locking ball (6) is rolled in the adapter groove (7), and part of the locking ball (6) is engaged in the adapter groove (8). In the locking groove (8), the adapter groove (7) is opened in the locking sleeve (2), the locking groove (8) is opened in the locking rod (5), and a reinforcement mechanism is installed on the outside of the locking sleeve (2). The reinforcement mechanism includes a release plate (9), a connecting plate (10), a locking plate (11), and a release groove (12). The release plate (9) is rotatably installed in the locking sleeve (2), the connecting plate (10) is fixedly connected to one side of the unlocking sleeve (3), multiple locking plates (11) are connected to one side of the connecting plate (10), the release groove (12) is opened on the release plate (9), and an adjustment device is provided on the outside of the clamping plate (1).

2. The fixing and holding device for processing a circuit board according to claim 1, wherein: The adjusting device includes a lifting sleeve (13), a base (14), a fixed sleeve (15), a hydraulic cylinder (16), and a hydraulic rod (17). The fixed sleeve (15) is fixedly installed on the base (14). The lifting sleeve (13) is detachably installed inside the fixed sleeve (15). The hydraulic cylinder (16) is detachably installed in the fixed sleeve (15). One end of the hydraulic rod (17) is connected to the output end of the hydraulic cylinder (16), and the other end of the hydraulic rod (17) is connected to the top end inside the lifting sleeve (13). The lifting sleeve (13) is slidably disposed in the fixed sleeve (15).

3. The fixing and holding device for processing a circuit board according to claim 2, wherein: The clamping plate (1) is detachably provided with a movable frame (18) on one side, and the lifting sleeve (13) is detachably provided with a cylinder (19) on one side. The output end of the cylinder (19) is connected to a piston rod (20), and the other end of the piston rod (20) is detachably connected to the movable frame (18).

4. The fixing and holding device for processing a circuit board according to claim 3, wherein: The movable frame (18) is fixedly provided with a movable sleeve (21) on one side, and the lifting sleeve (13) is fixedly provided with a fixed rod (22) on one side. The movable sleeve (21) is slidably sleeved on the outside of the fixed rod (22).

5. The apparatus according to any one of claims 1 to 4, wherein: the apparatus further comprises a plurality of the fixing and holding devices. The clamping plate (1) has multiple slots (23) on one side.

6. The fixing and holding device for processing a circuit board according to claim 5, wherein: The unlocking sleeve (3) is fixedly provided with an unlocking plate (24) on the outside.

7. The circuit board processing clamping device according to claim 1, characterized in that: The unlocking sleeve (3) is connected to a reset spring (25) on one side, and the other end of the reset spring (25) is connected to the release plate (9) in a contact manner.

8. The fixing and holding device for processing a circuit board according to claim 1, characterized in that: The adapter groove (7) has a concave structure design.

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