Welding tool for electronic component
By using adaptive and synchronous welding fixtures, the problem of poor adaptability of welding fixtures to circuit boards of different sizes in the prior art has been solved, thereby improving production efficiency and welding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-17
AI Technical Summary
Existing electronic component soldering fixtures lack adaptability and cannot be flexibly adjusted to accommodate circuit boards of different sizes, resulting in low production efficiency and increased costs.
A welding fixture comprising a base, a guide assembly, a clamping assembly, a control structure, and a locking structure was designed. The clamping plate can be adaptively adjusted by the cooperation of the guide rod and the spring, and the clamping plate can be operated synchronously by the linkage of the rack and pinion. The locking structure ensures a fixed state and simplifies the operation process.
It improves the versatility and efficiency of welding fixtures, reduces operational complexity and error rate, and ensures the stability and quality of circuit boards during the welding process.
Smart Images
Figure CN223997684U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electronic component welding technology, and specifically relates to a welding fixture for electronic components. Background Technology
[0002] Electronic components are widely used in various electronic devices and systems, such as home appliances, communication equipment, medical instruments, and industrial control systems. They are the foundation of modern electronic technology, supporting the functionality and performance improvement of electronic products. Soldering electronic components is the process of connecting electronic components to printed circuit boards (PCBs) or other conductive surfaces to enable signal transmission and control in circuits.
[0003] In existing technologies, when soldering electronic components to circuit boards, fixtures are required to fix the circuit boards in place. However, existing fixtures are often designed for circuit boards of specific sizes and lack adaptability. When fixing circuit boards of different sizes, a lot of time and effort is required to adjust or replace the fixtures, which reduces production efficiency and increases production costs.
[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a welding fixture for electronic components, including a base. The upper surface of the base is symmetrically provided with sliding grooves. Two sets of guide components are symmetrically provided inside the base. Each set of guide components has a set of clamping components slidably mounted on it, and the clamping components are slidably connected in the sliding grooves. A control structure is installed inside the base. The control structure is connected to the lower ends of the two sets of clamping components so that the clamping components can simultaneously move closer to or away from the center of the base. A locking structure is installed at one end of the control structure, and a positioning structure is installed on one side of the base. The locking structure and the positioning structure can fix the control structure in a fixed state, so that the fixed control structure drives the clamping components to a fixed state.
[0006] The guide assembly includes a guide rod, one end of which is mounted on the inner wall of the base. A first spring is mounted around the guide rod, one end of which contacts the interior of the base, and the other end of which contacts the clamping assembly.
[0007] The clamping assembly connecting plate is slidably installed in the slide groove and is slidably connected to the guide rod. A clamping plate is installed on the upper end of the connecting plate, and a handle is installed on one side of the clamping plate.
[0008] The control structure includes a rotating rod, one end of which is rotatably mounted on the inner wall of the base and extends through the outside of the base. A locking structure is coaxially mounted on the other end of the rotating rod. A driven gear is mounted on the rotating rod. The control structure also includes a first rack and an extension frame. The first rack is mounted on the lower end of the connecting plate of a set of clamping components, and the extension frame is mounted on the lower end of the connecting plate of another set of clamping components. The first rack is located above the driven gear and meshes with the driven gear. A second rack is mounted on the lower end of the extension frame. The second rack is located below the driven gear and meshes with the driven gear.
[0009] The locking structure includes a connecting shell, which is coaxially mounted on one end of the rotating rod. The locking structure also includes a fixing shell, one end of which is mounted on the inner wall of the base. The fixing shell and the connecting shell are coaxial. A connecting rod is installed in the axial part of the fixing shell. One end of the connecting rod is slidably mounted inside the connecting shell. A second spring is installed inside the connecting shell. One end of the second spring is in contact with one end of the connecting rod. Multiple protrusions are evenly arranged on the outer surface of the connecting shell. Multiple grooves are evenly arranged inside the fixing shell. The protrusions and grooves correspond to each other and are mutually compatible.
[0010] A pressing plate is mounted on the axis of one end of the rotating rod that extends through the outside of the base. The pressing plate has a positioning groove. The positioning structure includes a mounting column, which is installed on one side of the base. A snap-fit plate is rotatably mounted on the mounting column, and the snap-fit plate corresponds to the position of the positioning groove.
[0011] The base has fixing plates at its four corners, and bolts are movably installed on each fixing plate.
[0012] A rubber layer is provided on one side of the clamping plate near the middle of the base.
[0013] This utility model has the following beneficial effects:
[0014] 1. This utility model applies external force by gripping the handle, causing the clamping plate to slide within the groove. The connecting plate slides parallel to the guide rod and compresses the first spring. At this time, the position of the clamping plate can be flexibly adjusted according to the actual size of the circuit board, so that it is in close contact with both sides of the circuit board, thereby firmly clamping the circuit board in the middle of the upper surface of the base. This device can adaptively adjust the position of the clamping plate to fix the circuit board without the need to replace special tooling parts for circuit boards of different sizes, greatly improving the versatility and practicality of the tooling and meeting diverse welding needs.
[0015] 2. This utility model utilizes the principle that a first rack and a second rack are respectively connected to the lower end of a connecting plate, with the first rack meshing with the upper part of the driven gear and the second rack meshing with the lower part of the driven gear. When one clamping plate is operated to move and drive any one rack to move, the driven gear will rotate accordingly, thereby causing the other rack to move in the opposite direction. This allows the two clamping plates to move closer or further apart synchronously. This design greatly simplifies the operation process. The operator only needs to control one clamping plate to achieve synchronous control of the two clamping plates, effectively improving work efficiency and reducing the complexity and error rate of operation.
[0016] 3. This utility model, by rotating the clamping plate to align it with the positioning groove, releases the fixing of the pressing plate. The second spring releases its compressed elastic force, driving the rotating rod to move laterally in the opposite direction. The connecting shell disengages from the fixed shell, and the protrusion is no longer clamped into the groove. The rotating rod drives the driven gear to rotate, making the clamping plate slidable. When the circuit board is removed, the first spring releases its elastic force, automatically moving the clamping plate to the end of the slide groove close to the middle of the base, returning to the initial position. This self-returning function allows the fixture to quickly return to its initial state after each use. When the next circuit board is placed on the base, there is no need to manually adjust the position of the clamping plate. The fixture can adaptively adjust again according to the size of the new circuit board, further improving the continuity and efficiency of the work.
[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a schematic diagram of the internal structure of the base of this utility model;
[0020] Figure 3 This is a three-dimensional cross-sectional structural diagram of the present invention;
[0021] Figure 4 This is a schematic diagram of the clamping component structure of this utility model;
[0022] Figure 5 For the present utility model Figure 4 A magnified view of the structure at point A in the middle;
[0023] Figure 6 This is a schematic diagram of the locking structure of this utility model;
[0024] Figure 7 This is a cross-sectional schematic diagram of the locking structure of this utility model.
[0025] Explanation of reference numerals in the attached drawings: 1. Base; 2. Slide groove; 3. Guide assembly; 4. Clamping assembly; 5. Control structure; 6. Locking structure; 7. Positioning structure; 8. Guide rod; 9. First spring; 10. Connecting plate; 11. Clamping plate; 12. Handle; 13. Rotating rod; 14. Driven gear; 15. First rack; 16. Extension frame; 17. Second rack; 18. Connecting shell; 19. Fixing shell; 20. Connecting rod; 21. Second spring; 22. Pressing plate; 23. Positioning groove; 24. Mounting post; 25. Snap-fit plate; 26. Fixing plate; 27. Bolt. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-7 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.
[0027] Please see Figure 1 , Figure 2 As shown:
[0028] This embodiment provides a welding fixture for electronic components, including a base 1, which is mounted on a welding workbench. The upper surface of the base 1 has symmetrically arranged grooves 2. Two sets of guide components 3 are symmetrically arranged inside the base 1, with at least two guide components 3 in each set. Each set of guide components 3 has a clamping component 4 slidably mounted on it, and the clamping component 4 is slidably connected within the grooves 2. A control structure 5 is installed inside the base 1, and the control structure 5 is connected to the lower ends of the two sets of clamping components 4, allowing the clamping components 4 to simultaneously move closer to or away from the center of the base 1. A locking structure 6 is installed at one end of the control structure 5, and a positioning structure 7 is installed on one side of the base 1. The locking structure 6 and the positioning structure 7 can fix the control structure 5 in a fixed state, so that the fixed control structure 5 drives the clamping components 4 to a fixed state.
[0029] In practical use, the base 1 is installed on the welding workbench to fix the circuit board. The circuit board is placed on the upper surface of the base 1. The operator can adjust the two sets of clamping components 4 according to the size of the circuit board. Under the positioning of the positioning component, the two sets of clamping components 4 slide parallel to each other in the slide groove 2 to adjust their own positions, so as to clamp the circuit board in the middle of the upper surface of the base 1. This allows the device to adaptively adjust according to the size of the circuit board and clamp both sides of the circuit board. When the clamping components 4 move, the control structure 5 connected to them will move accordingly. After the clamping components 4 clamp both sides of the circuit board, the operator can drive the locking structure 6 to move laterally by operating the control structure 5. After the locking structure 6 moves laterally, it will be compressed to change into a fixed form, so that the control structure 5 can no longer rotate. Then, the positioning structure 7 fixes the position of the control structure 5, thus making the control structure 5 fixed. The clamping component 4 and the control structure 5 are connected. When the control structure 5 is fixed, the clamping component 4 will also be fixed in position, firmly fixing the circuit board to the upper surface of the base 1. This allows for stable soldering of the circuit board, improving soldering quality. When the circuit board needs to be removed, the operator releases the positioning structure 7 from fixing the position of the control structure 5. This removes the locking structure 6 from the control structure 5, allowing it to return to a movable state. The clamping component 4 then becomes movable, releasing the fixing effect on the circuit board. The operator can then easily remove the circuit board from the upper surface of the base 1. After the circuit board is removed, the clamping component 4 returns to its initial position, waiting for the next circuit board to be placed on the upper surface of the base 1 for fixing. This allows the device to stably fix circuit boards of different sizes, providing adaptive adjustment and improving work efficiency.
[0030] like Figure 1 , Figure 2 , Figure 4As shown, the guide assembly 3 includes a guide rod 8, one end of which is mounted on the inner wall of the base 1. A first spring 9 is mounted around the guide rod 8, one end of which contacts the interior of the base 1, and the other end of which contacts the clamping assembly 4. The clamping assembly 4 is connected to a connecting plate 10, which is slidably mounted in a slide groove 2 and slidably connected to the guide rod 8. A clamping plate 11 is mounted on the upper end of the connecting plate 10, and the lower end of the clamping plate 11 is in close contact with the upper surface of the base 1. A handle 12 is mounted on one side of the clamping plate 11. In the initial state, the first spring 9 supports the connecting plate 10 at the end of the slide groove 2 near the middle of the base 1, so that the clamping plates 11 of the two sets of clamping assemblies 4 are positioned relative to each other in the middle of the base 1. When it is necessary to place the circuit board on the base 1, the operator holds the handle 12 to apply external force. The force pulls the clamping plate 11 to slide in the slide groove 2, causing the connecting plate 10 to move and slide parallel on the guide rod 8, driving the first spring 9 to compress. This causes the clamping plates 11 of the two sets of clamping components 4 to move away from the middle of the base 1. Then, the circuit board is placed on the upper surface of the base 1, and the clamping plates 11 of the two sets of clamping components 4 are moved to contact one side of the circuit board. The elastic force of the first spring 9 keeps the clamping plate 11 in contact with one side of the circuit board. When the control structure 5 changes the clamping component 4 to a fixed state, the clamping component 4 can fix the circuit board to the upper surface of the base 1. After the circuit board is removed, the first spring 9 releases its elastic force and moves the clamping plate 11 to the end of the slide groove 2 that is close to the middle of the base 1, so as to return to the initial position. This allows the next circuit board to be placed on the base 1 and can be adaptively adjusted according to the size.
[0031] The clamping plate 11 has a rubber layer on one side near the middle of the base 1. When the clamping plate 11 contacts the circuit board, the rubber layer can increase the friction with the surface of the circuit board, ensuring that the circuit board is clamped more firmly and preventing it from sliding or shifting during the soldering process. In addition, the rubber layer can further buffer the clamping force, avoid scratches, indentations and other damage to the surface of the circuit board, and protect the integrity of the circuit board.
[0032] like Figure 1-3As shown, the control structure 5 includes a rotating rod 13, one end of which is rotatably mounted on the inner wall of the base 1 and extends through the outside of the base 1. A locking structure 6 is coaxially mounted on the other end of the rotating rod 13. A driven gear 14 is mounted on the rotating rod 13. The control structure 5 also includes a first rack 15 and an extension frame 16. The first rack 15 is mounted on the lower end of the connecting plate 10 of a set of clamping assemblies 4, and the extension frame 16 is mounted on the lower end of the connecting plate 10 of another set of clamping assemblies 4. The first rack 15 is located above the driven gear 14 and meshes with it. A second rack 17 is mounted on the lower end of the extension frame 16, located below the driven gear 14. The first rack 17 meshes with the driven gear 14. When the clamping plate 11 connected to the first rack 15 moves, the first rack 15 will also move with the clamping plate 11. Thus, the first rack 15 will drive the driven gear 14 meshing with it to rotate. Since the second rack 17 is located below the driven gear 14 through the extension frame 16 and is also meshed with the driven gear 14, the rotation of the driven gear 14 will cause the second rack 17 to move in the opposite direction to the first rack 15. Thus, when one clamping plate 11 moves, through the linkage of the first rack 15, the driven gear 14 and the second rack 17, the other clamping plate 11 will move relative to it, so that the two clamping plates 11 move closer to or away from the center of the base 1 at the same time.
[0033] After the clamping plate 11 clamps the circuit board onto the upper surface of the base 1, pressing the rotating rod 13 to extend one end outside the base 1 causes the rotating rod 13 to move laterally, thereby compressing the locking structure 6. This compression prevents the locking structure 6 from rotating, thus preventing the rotating rod 13 and the driven gear 14 from rotating. When the driven gear 14 can no longer rotate, the first rack 15 and the second rack 17 meshing with it can no longer slide. The two clamping plates 11 also become fixed due to the fixation of the first rack 15 and the second rack 17, thereby fixing their own positions and firmly fixing the circuit board onto the upper surface of the base 1. This ensures that the circuit board can be soldered in a stable state, improving the soldering quality.
[0034] like Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 7As shown, the locking structure 6 includes a connecting shell 18, which is coaxially mounted on one end of the rotating rod 13. The locking structure 6 also includes a fixing shell 19, one end of which is mounted on the inner wall of the base 1, and the fixing shell 19 and the connecting shell 18 are coaxial. A connecting rod 20 is mounted on the axial part inside the fixing shell 19, and one end of the connecting rod 20 is slidably mounted inside the connecting shell 18. A second spring 21 is installed inside the connecting shell 18, and one end of the second spring 21 contacts one end of the connecting rod 20. Multiple protrusions are evenly distributed on the outer surface of the connecting shell 18, and multiple grooves are evenly distributed inside the fixing shell 19. The protrusions and grooves correspond one-to-one and are mutually... In the adaptation process, after the clamping plate 11 clamps the circuit board onto the upper surface of the base 1, pressing the end of the rotating rod 13 extending outside the base 1 causes the rotating rod 13 to move laterally, thereby driving the connecting shell 18 to move into the fixed shell 19. The connecting rod 20 slides into the connecting shell 18, compressing the second spring 21. When the connecting shell 18 moves into the fixed shell 19, the protrusion will engage with the corresponding groove, so that the connecting shell 18 is engaged with the fixed shell 19. Then, the position of the rotating rod 13 is fixed by the positioning structure 7, so that the rotating rod 13 becomes fixed and cannot rotate, thus controlling the clamping plate 11 to become fixed and perform clamping operations on the circuit board.
[0035] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7As shown, a pressing plate 22 is axially mounted on one end of the rotating rod 13 that extends beyond the outside of the base 1. A positioning groove 23 is provided on the pressing plate 22. The positioning structure 7 includes a mounting post 24, which is mounted on one side of the base 1. A snap-fit plate 25 is rotatably mounted on the mounting post 24. The snap-fit plate 25 corresponds to the positioning groove 23. Pressing the pressing plate 22 causes the rotating rod 13 to move laterally, and the snap-fit plate 25 passes through the corresponding positioning groove 23, thereby causing the connecting shell 18 to extend and retract into the fixed shell 19, so that the protrusion engages with the groove on the fixed shell 19. Then, by rotating the snap-fit plate 25, its position no longer corresponds to the positioning groove 23, but instead corresponds to the surface of the pressing plate 22. Correspondingly, so that the snap-fit plate 25 can fix the pressing plate 22, so that the connecting shell 18 is always inside the fixed shell 19, the protrusion is snapped into the groove, and the rotating rod 13 is fixed and cannot rotate. When it is needed, the rotating rod 13 rotates to unlock the fixed state of the clamping plate 11. Simply rotate the snap-fit plate 25 so that it is aligned with the position of the positioning groove 23 again, and the pressing plate 22 can no longer be fixed. At this time, the second spring 21 will release the compressed elastic force to drive the rotating rod 13 to move laterally in the opposite direction, so that the connecting shell 18 is separated from the fixed shell 19, and the protrusion is no longer snapped into the groove. Then the rotating rod 13 can drive the driven gear 14 to rotate again, so that the clamping plate 11 becomes slidable.
[0036] like Figure 1 As shown, the base 1 is equipped with fixing plates 26 at its four corners, and bolts 27 are movably installed on each fixing plate 26. By placing the base 1 on the welding workbench, the fixing plates 26 can be used to securely fix the base 1 to the welding workbench, ensuring that the base 1 will not shift or shake during use, thus providing a stable foundation for subsequent welding work.
[0037] The working principle of the welding fixture for electronic components provided by this utility model is as follows: The base 1 is threadedly fixed to the welding worktable using bolts 27. When it is necessary to fix the circuit board to the upper surface of the base 1, external force is applied by gripping the handle 12, causing the clamping plate 11 to slide within the slide groove 2. This causes the connecting plate 10 to slide parallel to the guide rod 8, compressing the first spring 9. The first rack 15 and the second rack 17 are respectively connected to the lower end of a connecting plate 10. The first rack 15 meshes with the upper part of the driven gear 14, and the second rack 17 meshes with the lower part of the driven gear 14. This allows the movement of one clamping plate 11 to drive any one of the components... When the rack moves, it drives the driven gear 14 to rotate, causing the other rack to move in the opposite direction. This causes the two clamping plates 11 to move together or apart simultaneously, allowing them to move away from the center of the base 1. The circuit board is then placed in the center of the upper surface of the base 1. The position of the clamping plates 11 is adjusted according to the size of the circuit board so that they contact both sides of the circuit board, clamping the circuit board in the center of the upper surface of the base 1. Then, pressing the pressing plate 22 causes the rotating rod 13 to move laterally, allowing the snap-fit plate 25 to pass through the positioning groove 23, which in turn causes the connecting shell 18 to extend and retract into the fixed shell 19. The connecting rod 20 then connects the components. Inside the shell 18, the second spring 21 is compressed so that the protrusion engages with the corresponding groove. The locking plate 25 is rotated so that it no longer aligns with the positioning groove 23, locking onto the surface of the pressing plate 22 and fixing the position of the rotating rod 13. This prevents the rotating rod 13 from rotating, and the driven gear 14, first rack 15, and second rack 17 can no longer move, thus fixing the two clamping plates 11 in a fixed state. This secures the circuit board to the upper surface of the base 1, allowing for stable soldering operations. When the circuit board needs to be removed, the locking plate 25 is rotated so that it no longer aligns with the positioning groove 23, preventing it from being fixed. Pressing the plate 22 releases the compressed force of the second spring 21, causing the rotating rod 13 to move laterally in the opposite direction. The connecting shell 18 disengages from the fixed shell 19, and the protrusion is no longer locked into the groove. At this time, the rotating rod 13 can drive the driven gear 14 to rotate again, making the clamping plate 11 slidable and releasing the fixing effect on the circuit board. The circuit board can then be easily removed from the upper surface of the base 1. After the circuit board is removed, the first spring 9 releases its elasticity to move the clamping plate 11 to the end of the slide groove 2 near the middle of the base 1, so as to return to the initial position. This allows the next circuit board to be placed on the base 1 and can be adaptively adjusted according to the size.
[0038] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0039] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. A soldering jig for electronic components, comprising a base (1), characterized in that, The upper surface of the base (1) is symmetrically provided with a sliding groove (2), the inside of the base (1) is symmetrically provided with two groups of guide assemblies (3), each group of the guide assemblies (3) is slidably provided with a group of clamping assemblies (4), and the clamping assemblies (4) are slidably connected in the sliding groove (2), the inside of the base (1) is provided with a control structure (5), the control structure (5) is connected with the lower ends of the two groups of clamping assemblies (4), so that the clamping assemblies (4) can be simultaneously close to or away from the middle part of the base (1), one end of the control structure (5) is provided with a locking structure (6), one side of the base (1) is provided with a positioning structure (7), the locking structure (6) and the positioning structure (7) can make the control structure (5) into a fixed state, so that the control structure (5) in the fixed state drives the clamping assemblies (4) into a fixed state.
2. The electronic component soldering fixture of claim 1, wherein, The guide assembly (3) comprises a guide rod (8), one end of the guide rod (8) is installed on the inner wall of the base (1), a first spring (9) is installed around the guide rod (8), one end of the first spring (9) is in contact with the inside of the base (1), and the other end of the first spring (9) is in contact with the clamping assembly (4).
3. The electronic component soldering fixture of claim 2, wherein, The clamping assembly (4) is connected with a connecting plate (10), the connecting plate (10) is slidably installed in the sliding groove (2), and the connecting plate (10) penetrates and is slidably connected on the guide rod (8), a clamping plate (11) is installed on the upper end of the connecting plate (10), and a handle (12) is installed on one side of the clamping plate (11).
4. The electronic component soldering fixture of claim 3, wherein, The control structure (5) comprises a rotating rod (13), one end of the rotating rod (13) is rotatably installed on the inner wall of the base (1) and penetrates and extends out of the base (1), the locking structure (6) is coaxially installed on the other end of the rotating rod (13), a driven gear (14) is installed on the rotating rod (13), the control structure (5) further comprises a first rack (15) and an extension frame (16), the first rack (15) is installed on the lower end of the connecting plate (10) of one group of clamping assemblies (4), the extension frame (16) is installed on the lower end of the connecting plate (10) of the other group of clamping assemblies (4), the first rack (15) is located above the driven gear (14), and the first rack (15) is engaged with the driven gear (14), a second rack (17) is installed on the lower end of the extension frame (16), the second rack (17) is located below the driven gear (14), and the second rack (17) is engaged with the driven gear (14).
5. The electronic component soldering fixture of claim 4, wherein the plurality of pins are arranged in a circular pattern. Said locking structure (6) includes connecting shell (18), connecting shell (18) is coaxially installed at one end of rotating rod (13), and the locking structure (6) further includes fixed shell (19), one end of fixed shell (19) is installed on the inner wall of base (1), and fixed shell (19) and connecting shell (18) are coaxial relationship, connecting rod (20) is installed at the inner axial part of fixed shell (19), one end of connecting rod (20) is slidingly installed in connecting shell (18), second spring (21) is installed in connecting shell (18), one end of second spring (21) is in contact with one end of connecting rod (20), a plurality of protrusions are uniformly arranged on the outer surface of connecting shell (18), a plurality of grooves are uniformly arranged in the fixed shell (19), the protrusions and the grooves are one-to-one corresponding and mutually adapted.
6. The electronic component soldering fixture of claim 5, wherein, The rotating rod (13) penetrates through the base (1) and is installed at one end of the shaft outside the base (1), and the pressing plate (22) is installed at one end of the shaft, the positioning groove (23) is formed in the pressing plate (22), the positioning structure (7) includes the mounting column (24), the mounting column (24) is installed on one side of the base (1), the clamping plate (25) is rotatably installed on the mounting column (24), and the clamping plate (25) is located corresponding to the positioning groove (23).
7. The electronic component soldering fixture of claim 1, wherein, The base (1) is provided with a fixed plate (26) at four corners, and the bolt (27) is movably installed on the fixed plate (26).
8. The electronic component soldering fixture of claim 3, wherein, The rubber layer is arranged on one side of the clamping plate (11) close to the middle part of the base (1).