Positioning tool for circuit board processing

Abstract

The utility model discloses a positioning tool for circuit board processing, which comprises a base, the base is provided with an adjusting frame and a clamping plate assembly, the adjusting frame is provided with a supporting pad, the supporting pad is matched with the clamping plate assembly, and the supporting pad is provided with a longitudinal extending mechanism and a transverse extending mechanism. Through the arrangement of structures such as a first extension pad, a driving spring, a locking rod, a second extension pad, a torsional spring and an inserting shaft, when a large circuit board needs to be supported, the supporting area of the middle of the circuit board can be conveniently expanded only by sliding out of the first extension pad for longitudinal extension and rotating the first extension pad for transverse extension in sequence, and the supporting efficiency of the circuit board is improved. The situation that when a large circuit board is supported, due to the fact that the supporting area of the supporting pad is small, the middle of the circuit board collapses easily is avoided, and meanwhile due to the fact that the area of the supporting pad is small, when the circuit board is punched, the middle position of the circuit board deforms easily is avoided.

Description

Technical Field

[0001] This utility model relates to the field of circuit board processing technology, specifically to a positioning fixture for circuit board processing. Background Technology

[0002] In the prior art, patent CN220359440U discloses a positioning fixture for circuit board processing, including a base, with support columns slidably connected to both side walls of the base, and clamping plates on the support columns. It also includes: a moving device, located inside the base, for moving the two sets of support columns relative to each other and causing the clamping plates to abut against the sides of the circuit board to clamp it; and a support assembly, located on the top of the base, for supporting the circuit board. This application can prevent scratches on the surface of the circuit board and avoid bending of the circuit board when fixing and supporting it.

[0003] While the aforementioned equipment can prevent scratches and bending of the circuit board surface when providing fixed support, in actual use, because the size of the support pad is fixed, when positioning a larger circuit board, although the existing support pad can move left and right, its size cannot be changed. As a result, when drilling holes in the circuit board, the middle position of the circuit board will still collapse, leading to displacement during drilling.

[0004] Therefore, a positioning fixture for circuit board processing is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a positioning fixture for circuit board processing to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for circuit board processing, comprising a base, an adjusting frame and a clamping plate assembly mounted on the base, a support pad mounted on the adjusting frame, the support pad being adapted to the clamping plate assembly, a longitudinal extension mechanism and a transverse extension mechanism mounted on the support pad, the longitudinal extension mechanism comprising a slide groove, the support pad having a slide groove, a first extension pad slidably mounted on the inner wall of the slide groove, the transverse extension mechanism comprising two support plates, both support plates being mounted on the support pad, two rotating grooves being formed on the two support plates, a rotating shaft being rotatably mounted on the inner wall of each of the two rotating grooves, a second extension pad being mounted on the side of the two rotating shafts that are close to each other, the two second extension pads and the first extension pad being distributed in a cross shape.

[0007] Preferably, two guide rods are installed on the inner wall of the first extension pad, and both guide rods are slidably installed on the first extension pad.

[0008] Preferably, a drive spring is sleeved on the guide rod, with one end of the drive spring mounted on the first extension pad and the other end of the drive spring mounted on the inner wall of the slide groove.

[0009] Preferably, a locking rod is slidably mounted on the support pad, and a locking groove is formed on the first extension pad, with the locking rod movably mounted on the inner wall of the locking groove.

[0010] Preferably, a retaining spring is installed on the locking rod, with one end of the retaining spring mounted on the outer surface of the support pad.

[0011] Preferably, a torsion spring is sleeved on the rotating shaft, with one end of the torsion spring mounted on the inner wall of the rotating groove and the other end of the torsion spring mounted on the outer surface of the rotating shaft.

[0012] Preferably, a plug shaft is slidably mounted on the support plate, and a plug hole is provided on the second extension pad, with the plug shaft movably mounted on the inner wall of the plug hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model of the base, through the arrangement of a first extension pad, a drive spring, a locking rod, a retaining spring, a second extension pad, a torsion spring, and a plug-in shaft, allows for convenient expansion of the support area in the middle of the circuit board when supporting a large circuit board. This is achieved by simply sliding out the first extension pad for longitudinal extension and rotating the first extension pad for lateral extension. This avoids the situation where the support area of ​​the support pad is small, which could easily cause the middle of the circuit board to collapse when supporting a large circuit board. Additionally, the small area of ​​the support pad can easily cause deformation in the middle of the circuit board when drilling holes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure of the support pad, the first extension pad, and the second extension pad of this utility model.

[0017] Figure 3 This is a schematic diagram of the connection structure of the first extension pad, guide rod, and locking rod of this utility model.

[0018] Figure 4 This is a schematic diagram of the connection structure of the second extension pad, the rotating shaft, and the torsion spring of this utility model.

[0019] Figure 5 This is a schematic diagram of the connection structure of the support plate, the second extension pad, and the plug shaft of this utility model;

[0020] In the diagram: 1. Base; 2. Adjustment frame; 3. Support pad; 4. Clamping plate assembly; 5. Slide groove; 51. First extension pad; 52. Locking groove; 53. Guide rod; 54. Drive spring; 55. Locking rod; 56. Retention spring; 6. Support plate; 61. Second extension pad; 62. Rotating groove; 63. Rotating shaft; 64. Torsion spring; 65. Insertion hole; 66. Insertion shaft. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: Please refer to Figure 1-5 This utility model provides a technical solution: a positioning fixture for circuit board processing, including a base 1, an adjusting frame 2 and a clamping plate assembly 4 mounted on the base 1, a support pad 3 mounted on the adjusting frame 2, the support pad 3 being adapted to the clamping plate assembly 4, a longitudinal extension mechanism and a transverse extension mechanism mounted on the support pad 3, the longitudinal extension mechanism including a slide groove 5, the support pad 3 having a slide groove 5, a first extension pad 51 slidably mounted on the inner wall of the slide groove 5, two guide rods 53 mounted on the inner wall of the first extension pad 51, both guide rods 53 being slidably mounted on the first extension pad 51, a drive spring 54 sleeved on the guide rod 53, one end of the drive spring 54 being mounted on the first extension pad 51, and the other end of the drive spring 54 being mounted on the inner wall of the slide groove 5, supporting... A locking rod 55 is slidably mounted on the pad 3. A locking groove 52 is provided on the first extension pad 51. The locking rod 55 is movably mounted on the inner wall of the locking groove 52. A retaining spring 56 is installed on the locking rod 55. One end of the retaining spring 56 is installed on the outer surface of the support pad 3. The elastic restoring force of the drive spring 54 drives the first extension pad 51 on the guide rod 53 in the slide groove 5 to slide to both sides. When the first extension pad 51 slides to the edge position, the locking rod 55 is inserted into the locking groove 52 on the first extension pad 51, which can conveniently fix the position of the first extension pad 51, thereby realizing the longitudinal extension of the support pad 3. At the same time, the retaining spring 56 can effectively increase the fixing effect of the locking rod 55 on the first extension pad 51.

[0023] Example 2: Based on Example 1, to facilitate increasing the lateral support area of ​​the support pad 3, lateral extension mechanisms are arranged on both sides of the support pad 3. Specifically, this includes two support plates 6, both of which are mounted on the support pad 3. Two rotating grooves 62 are formed on each support plate 6, and a rotating shaft 63 is rotatably mounted on the inner wall of each of the two rotating grooves 62. A second extension pad 61 is mounted on the side of the two rotating shafts 63 that is close to each other. The two second extension pads 61 and the first extension pad 51 are arranged in a cross shape. A torsion spring 64 is sleeved on the rotating shaft 63. One end of the torsion spring 64 is mounted on the inner wall of the rotating groove 62, and the other end is mounted on the outer surface of the rotating shaft 63. A connecting shaft 66 is slidably mounted on the support plate 6. The second extension pad 61 has a insertion hole 65, and the insertion shaft 66 is movably installed on the inner wall of the insertion hole 65. The second extension pad 61 drives the rotating shaft 63 in the rotating groove 62 to rotate, and the rotating shaft 63 drives the torsion spring 64 to deform. When the second extension pad 61 rotates to a suitable position, the insertion shaft 66 on the support plate 6 is inserted into the insertion hole 65 on the second extension pad 61, which can realize the lateral extension of the support pad 3. At the same time, with the setting of the torsion spring 64, after the second extension pad 61 is used, after the insertion shaft 66 is pulled out from the insertion hole 65 on the second extension pad 61, the elastic restoring force of the torsion spring 64 can conveniently and quickly drive the second extension pad 61 to rotate downward in an arc for storage. The remaining features are the same as in Embodiment 1.

[0024] The working principle is as follows: When a large circuit board needs to be supported, the support pads 3 on the two adjusting brackets 2 are first moved to a suitable position. Then, the elastic restoring force of the drive spring 54 drives the first extension pad 51 on the guide rod 53 in the slide groove 5 to slide to both sides. When the first extension pad 51 slides to the edge position, the locking rod 55 is inserted into the locking groove 52 on the first extension pad 51 to easily fix the position of the first extension pad 51, thereby realizing the longitudinal extension of the support pad 3. At the same time, the second extension pad 61 on the support plate 6 is manually rotated. The second extension pad 61 drives the rotating shaft 63 in the rotating groove 62 to rotate. The rotating shaft 63 drives the torsion spring 64 to deform. When the second extension pad 61 rotates to a suitable position, the insertion shaft 66 on the support plate 6 is inserted into the insertion hole 65 on the second extension pad 61 to realize the lateral extension of the support pad 3. In summary, it can easily increase the support area of ​​the support pad 3 on the circuit board, thereby adapting to the positioning and processing of circuit boards of different sizes.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning tool for processing a circuit board, comprising a base (1), an adjusting frame (2) and a clamping plate assembly (4) mounted on the base (1), a supporting pad (3) mounted on the adjusting frame (2), and the supporting pad (3) is matched with the clamping plate assembly (4), characterized in that: The support pad (3) is provided with a longitudinal extension mechanism and a transverse extension mechanism, the longitudinal extension mechanism comprises a sliding groove (5), the sliding groove (5) is arranged on the support pad (3), a first extension pad (51) is slidably arranged on the inner wall of the sliding groove (5), the transverse extension mechanism comprises two support plates (6), the two support plates (6) are arranged on the support pad (3), two rotating grooves (62) are arranged on the two support plates (6), a rotating shaft (63) is rotatably arranged on the inner wall of each rotating groove (62), a second extension pad (61) is arranged on the side of the two rotating shafts (63) close to each other, and the two second extension pads (61) are distributed in a cross shape with the first extension pad (51). ​ 2. The positioning tool for processing a circuit board according to claim 1, wherein: Two guide rods (53) are arranged on the inner wall of the first extension pad (51), and the two guide rods (53) are slidably arranged on the first extension pad (51).

3. The positioning tool for processing a circuit board according to claim 2, wherein: A driving spring (54) is sleeved on the guide rod (53), one end of the driving spring (54) is arranged on the first extension pad (51), and the other end of the driving spring (54) is arranged on the inner wall of the sliding groove (5).

4. The positioning tool for processing a circuit board according to claim 1, wherein: A locking rod (55) is slidably arranged on the support pad (3), a locking groove (52) is arranged on the first extension pad (51), and the locking rod (55) is movably arranged on the inner wall of the locking groove (52).

5. The positioning tool for processing a circuit board according to claim 4, wherein: A retaining spring (56) is arranged on the locking rod (55), and one end of the retaining spring (56) is arranged on the outer surface of the support pad (3).

6. The positioning tool for processing a circuit board according to claim 1, wherein: A torsional spring (64) is sleeved on the rotating shaft (63), one end of the torsional spring (64) is arranged on the inner wall of the rotating groove (62), and the other end of the torsional spring (64) is arranged on the outer surface of the rotating shaft (63).

7. The positioning tool for processing a circuit board according to claim 6, wherein: A plug-in shaft (66) is slidably arranged on the support plate (6), a plug-in hole (65) is arranged on the second extension pad (61), and the plug-in shaft (66) is movably arranged on the inner wall of the plug-in hole (65).

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