Fixture for correcting wrong hole drilling of screw

Abstract

The utility model relates to a correction jig for drilling a wrong hole in a screw, and aims to solve the problems that the current correction jig for drilling the wrong hole in the screw cannot accurately position and drill the hole according to the size of a PCB (Printed Circuit Board), and the correction jig for drilling the wrong hole in the screw cannot limit the position of the screw during drilling, so that the phenomenon that the position of the screw deviates in the screwing process is easily caused. The device comprises a base, clamping plates are installed at the two ends of the base, an electric push rod is installed on one side of one clamping plate, a moving groove is formed in the top end of the clamping plate, and a first locking bolt is connected to the interior of the moving groove through a moving block. The top end of one moving block is connected with a sliding plate through a sliding groove, and the top end of the other moving block is provided with an installation frame. According to the PCB positioning and punching device, screws with wrong holes can be repositioned, and accurate positioning and punching can be conducted on the PCBs according to the sizes of the PCBs.

Description

Technical Field

[0001] The utility model relates to the field of jigs, in particular to a jig for correcting wrong screw holes. Background Art

[0002] In the process of manufacturing a connector, in order to fix a PCB board and an upper cover, two kinds of screws need to be locked respectively. The sizes of the two kinds of screws are different. The screw for fixing the PCB board is smaller in size and smaller in assembly torque to protect the PCB board so that it will not be under excessive pressure after the screw is tightened. If the large screw for fixing the upper cover is misused, on the one hand, it is easy to damage the connector housing, resulting in the inability to fix the PCB board. On the other hand, because the electronic components on the PCB board are close to each other, the electronic components will be damaged during the process of rotating the large screw.

[0003] In the process of implementing the present utility model, the inventor found that at least the following problems in the prior art have not been solved. During use, the traditional jig for correcting wrong screw holes cannot accurately position and punch holes according to the size of the PCB board, and the jig for correcting wrong screw holes cannot limit the position of the screw during punching, so that it is easy to cause the phenomenon that the position of the screw deviates during the screwing process, and the stability and accuracy during screw hole correction are relatively poor. Therefore, a new technical solution needs to be designed to solve this problem. Content of the Utility Model

[0004] The purpose of the present utility model is to overcome the deficiencies of the prior art, adapt to the actual needs, and provide a jig for correcting wrong screw holes to solve the technical problems that the current jig for correcting wrong screw holes cannot accurately position and punch holes according to the size of the PCB board, and the jig for correcting wrong screw holes cannot limit the position of the screw during punching, so that it is easy to cause the phenomenon that the position of the screw deviates during the screwing process, and the stability and accuracy during screw hole correction are relatively poor.

[0005] To achieve the purpose of the present utility model, the technical solution adopted by the present utility model is as follows: Design a jig for correcting wrong screw holes, including a base. Clamps are installed at both ends of the base. An electric push rod is installed on one side of one of the clamps. A moving groove is opened at the top of the clamp. A first locking bolt is connected through a moving block inside the moving groove. A sliding plate is connected to the top of one of the moving blocks through a sliding groove. An installation frame is installed on the top of the other moving block. Positioning blocks are connected to both sides of the installation frame through second locking bolts. A screw insertion hole is opened in the middle of the positioning block. An extension plate is connected to the bottom of the positioning block through a sleeve plate. A spring member is installed inside the sleeve plate. A positioning chuck is installed at the other end of the extension plate.

[0006] Preferably, the mounting end of the electric push rod is fixedly connected to one end of the base, the output end of the electric push rod is fixedly connected to one side of one of the clamping plates, and one side of the other clamping plate is fixedly connected to the other end of the base.

[0007] Preferably, the moving block is slidably connected to the inside of the moving groove, one end of the first locking bolt is connected to the inside of the moving block by thread, and the other end of the first locking bolt abuts against the outer surface of the clamping plate.

[0008] Preferably, the sliding plates are fixedly connected to both sides of the bottom of the mounting bracket, the positioning block is slidably connected to the inside of the mounting bracket, one end of the second locking bolt is connected to the inside of the moving block by thread, and the other end of the second locking bolt abuts against the outer surface of the mounting bracket.

[0009] Preferably, the sleeve plates are fixedly connected to both sides of the bottom of the positioning block, one end of the extension plate is slidably connected to the inside of the sleeve plate, and the spring member is movably connected to the inside of the sleeve plate.

[0010] Preferably, the upper surface of the positioning chuck is slidably connected to the bottom of the positioning block, and one end of the positioning chuck is fixedly connected to one end of the extension plate.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] Through the combination of the clamping plate, electric push rod, moving groove, moving block, first locking bolt, sliding groove, sliding plate, mounting bracket, second locking bolt, positioning block, screw jack, sleeve plate, extension plate, spring member and positioning chuck, when correcting the wrongly installed screws on the PCB board, first place the PCB board between the two clamping plates, then drive one clamping plate to move by the electric push rod, so that the two clamping plates clamp and fix the PCB board. Then drive the moving block to move inside the moving groove by the mounting bracket, so as to adjust the longitudinal position of the positioning block. Then tighten the first locking bolt in the moving block to limit the position of the mounting bracket. Then let the positioning block move inside the mounting bracket to adjust the transverse position of the positioning block. Then tighten the second locking bolt in the positioning block to limit the position of the positioning block, thus realizing the repositioning of the wrongly drilled screws and being able to accurately position and drill holes according to the size of the PCB board.

[0013] When the screw is drilling a hole, first place one end of the screw into the screw jack, and then rotate the screw from top to bottom. When the screw head exerts a squeezing force on the positioning chuck, the positioning chuck will drive the extension plate to contract into the inside of the sleeve plate. During this process, the extension plate will squeeze the spring member. When the screw head disengages from the positioning chuck, the spring member will exert an elastic force on the extension plate, so that the positioning chuck is reset, thus realizing the limitation of the position of the screw during hole drilling correction, avoiding the phenomenon of position deviation of the screw during hole drilling, and further improving the stability and accuracy of using the fixture to correct the screw hole drilling. Description of the Drawings

[0014] Figure 1 is a schematic structural view of the present utility model;

[0015] Figure 2 is a schematic structural view of the mounting bracket of the present utility model;

[0016] Figure 3 is a bottom view of the positioning block of the present utility model;

[0017] Figure 4 is a top view of the positioning block of the present utility model;

[0018] Figure 5 is a cross-sectional view of the sleeve plate of the present utility model;

[0019] In the figure: 1, base; 11, clamping plate; 12, electric push rod; 13, moving groove; 14, moving block; 15, first locking bolt; 16, sliding groove; 17, sliding plate;

[0020] 2, mounting bracket; 21, second locking bolt; 22, positioning block; 23, screw jack; 24, sleeve plate; 25, extension plate; 26, spring member; 27, positioning chuck. Detailed Embodiments

[0021] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0022] Embodiment 1: A fixture for correcting misdrilled screw holes, see Figures 1 to 5, including a base 1. Clamping plates 11 are installed at both ends of the base 1. An electric push rod 12 is installed on one side of one of the clamping plates 11. The installation end of the electric push rod 12 is fixedly connected to one end of the base 1, and the output end of the electric push rod 12 is fixedly connected to one side of one of the clamping plates 11. The other side of the other clamping plate 11 is fixedly connected to the other end of the base 1. A moving groove 13 is opened at the top of the clamping plate 11. A first locking bolt 15 is connected to the inside of the moving groove 13 through a moving block 14. The moving block 14 is slidably connected to the inside of the moving groove 13. One end of the first locking bolt 15 is connected to the inside of the moving block 14 through a thread, and the other end of the first locking bolt 15 abuts against the outer surface of the clamping plate 11. The top of one moving block 14 is connected to a sliding plate 17 through a sliding groove 16. An installation frame 2 is installed at the top of the other moving block 14. Positioning blocks 22 are connected to both sides of the installation frame 2 through second locking bolts 21. A screw insertion hole 23 is opened in the middle of the positioning block 22. The sliding plate 17 is fixedly connected to both sides of the bottom of the installation frame 2. The positioning block 22 is slidably connected to the inside of the installation frame 2. One end of the second locking bolt 21 is connected to the inside of the moving block 14 through a thread, and the other end of the second locking bolt 21 abuts against the outer surface of the installation frame 2. When correcting the wrongly screwed screws on the PCB board, first place the PCB board between the two clamping plates 11, and then drive one of the clamping plates 11 to move by the electric push rod 12, so that the two clamping plates 11 clamp and fix the PCB board. Then drive the moving block 14 to move inside the moving groove 13 by the installation frame 2, so as to adjust the longitudinal position of the positioning block 22. Then tighten the first locking bolt 15 inside the moving block 14 to limit the position of the installation frame 2. Then let the positioning block 22 move inside the installation frame 2 to adjust the transverse position of the positioning block 22. Then tighten the second locking bolt 21 inside the positioning block 22 to limit the position of the positioning block 22, thus realizing the repositioning of the wrongly drilled screws and being able to accurately position and drill holes according to the size of the PCB board;

[0023] The bottom of the positioning block 22 is connected with an extension plate 25 through a sleeve plate 24. A spring member 26 is installed inside the sleeve plate 24. The other end of the extension plate 25 is installed with a positioning chuck 27. The sleeve plate 24 is fixedly connected to both sides of the bottom of the positioning block 22. One end of the extension plate 25 is slidably connected inside the sleeve plate 24. The spring member 26 is movably connected inside the sleeve plate 24. The upper surface of the positioning chuck 27 is slidably connected to the bottom of the positioning block 22. One end of the positioning chuck 27 is fixedly connected to one end of the extension plate 25. When the screw is drilled, first place one end of the screw into the screw jack 23, and then rotate the screw from top to bottom. When the screw head generates a squeezing force on the positioning chuck 27, the positioning chuck 27 will drive the extension plate 25 to contract into the sleeve plate 24. During this process, the extension plate 25 will squeeze the spring member 26. When the screw head disengages from the positioning chuck 27, the spring member 26 will generate an elastic force on the extension plate 25, so that the positioning chuck 27 is reset, thus realizing the limitation of the position of the screw during drilling correction, avoiding the phenomenon of the screw deviating from the position during drilling, and further improving the stability and accuracy of using the fixture to correct the screw drilling.

[0024] In addition, the components designed in the present utility model are all common standard components or components known to those skilled in the art. Their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods. Those skilled in the art can fully realize them without further elaboration. The content protected by the present utility model does not involve improvements to the internal structure and method.

[0025] The embodiments disclosed in the present utility model are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present utility model, they are all within the protection scope of the present utility model.

Claims

1. Screw hole misdrilling correction fixture, including a base (1), characterized in that Both ends of the base (1) are equipped with clamping plates (11). One side of one of the clamping plates (11) is installed with an electric push rod (12). The top of the clamping plate (11) is provided with a moving groove (13). The inside of the moving groove (13) is connected with a first locking bolt (15) through a moving block (14). The top of one moving block (14) is connected with a sliding plate (17) through a sliding groove (16). The top of the other moving block (14) is installed with a mounting frame (2). Both sides of the mounting frame (2) are connected with positioning blocks (22) through second locking bolts (21). A screw insertion hole (23) is opened in the middle of the positioning block (22). The bottom of the positioning block (22) is connected with an extension plate (25) through a sleeve plate (24). A spring member (26) is installed inside the sleeve plate (24). The other end of the extension plate (25) is installed with a positioning chuck (27).

2. The screw hole misdrilling correction fixture according to claim 1, characterized in that, The installation end of the electric push rod (12) is fixedly connected to one end of the base (1), and the output end of the electric push rod (12) is fixedly connected to one side of one of the clamping plates (11). One side of the other clamping plate (11) is fixedly connected to the other end of the base (1).

3. The screw hole misdrilling correction jig according to claim 1, characterized in that, The moving block (14) is slidably connected to the inside of the moving groove (13). One end of the first locking bolt (15) is connected to the inside of the moving block (14) through a thread, and the other end of the first locking bolt (15) abuts against the outer surface of the clamping plate (11).

4. The screw hole misdrilling correction fixture according to claim 1, characterized in that, The sliding plate (17) is fixedly connected to both sides of the bottom of the mounting frame (2). The positioning block (22) is slidably connected to the inside of the mounting frame (2). One end of the second locking bolt (21) is connected to the inside of the moving block (14) through a thread, and the other end of the second locking bolt (21) abuts against the outer surface of the mounting frame (2).

5. The screw hole punching correction fixture according to claim 1, wherein, The sleeve plate (24) is fixedly connected to both sides of the bottom of the positioning block (22). One end of the extension plate (25) is slidably connected to the inside of the sleeve plate (24). The spring member (26) is movably connected to the inside of the sleeve plate (24).

6. The screw hole misdrilling correction fixture according to claim 1, wherein, The upper surface of the positioning chuck (27) is slidably connected to the bottom of the positioning block (22). One end of the positioning chuck (27) is fixedly connected to one end of the extension plate (25).

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