Quick-release type drill bit of PCB (Printed Circuit Board) drilling machine

Abstract

The utility model relates to the technical field of quick-release drill bits, and discloses a quick-release drill bit of a PCB (printed circuit board) drilling machine, which comprises a drill bit, the upper end of the drill bit is connected with a screw plug, the inner side of the screw plug is connected with three clamps, the lower end of each clamp is fixedly provided with an annular block, the upper end of each clamp is fixedly provided with a fan-shaped block, and the fan-shaped block is fixedly connected with the screw plug. And a rubber block is fixedly installed on the inner surface of each clamp, two springs are installed between every two clamps, the fan-shaped blocks are connected with a fixed rotating shaft, and a drilling machine body is fixedly installed at the upper end of the fixed rotating shaft. Through interaction of anti-skid rubber blocks arranged in the clamps and springs between the clamps, clamping of the clamps, the spiral plug and the fixed rotating shaft, threaded connection of the clamps and the interior of the fixed rotating shaft, and anti-skid grooves in the surface of the spiral plug, the anti-skid effect of the spiral plug is improved; through the mutual matching, the time for quickly disassembling and assembling the drill bit is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of quick-detachable drill bits, in particular to a quick-detachable PCB drilling machine drill bit. Background Art

[0002] Traditional PCB drilling machine drill bits mostly use threaded connection because this method is relatively stable. At the same time, the main work of the PCB drilling machine is to drill holes on the PCB board so that the components can be fixed and connected to the wires on the circuit board. However, the installation and disassembly speed of the threaded connection is very slow, so a quick-release PCB drilling machine drill bit is proposed. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the utility model provides a quick-detachable PCB drilling machine drill bit, which has the advantages of quick installation and disassembly, and solves the problem of slow installation and disassembly of threaded connections.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose of rapid installation and disassembly, the utility model provides the following technical solutions:

[0007] A quick-detachable PCB drilling machine drill bit comprises a drill bit, wherein the upper end of the drill bit is connected to a screw plug, the inner side of the screw plug is connected to three clamps, the lower end of each clamp is fixedly installed with an annular block, the upper end of each clamp is fixedly installed with a fan-shaped block, the inner surface of each clamp is fixedly installed with a rubber block, two springs are installed between every two clamps, the fan-shaped block is connected to a fixed rotating shaft, and the upper end of the fixed rotating shaft is fixedly installed with a drilling machine body.

[0008] As an optimal technical solution of the utility model, a screw plug is inserted into the upper end of the drill bit and penetrates the entire screw plug. A through hole is provided at the bottom of the screw plug and an anti-slip groove is provided on its outer surface. Three long strip-shaped through holes are provided on the side of the screw plug.

[0009] As a preferred technical solution of the utility model, each of the clamps is respectively clamped in the long side through hole of the screw plug through the annular block fixed at the bottom, and each of the clamps is respectively clamped in the inner bottom of the fixed rotating shaft through the fan-shaped block fixed at the top.

[0010] As a preferred technical solution of the utility model, each of the outer edges of the clamps is provided with threads, and the threads correspond one to one, and the rubber blocks inside each of the clamps are distributed in a rectangular shape, and the rubber blocks are rectangular parallelepiped structures.

[0011] As a preferred technical solution of the utility model, two springs are welded between each of the clamps, and there are six springs in total. The springs are distributed in two layers, with three springs in one layer.

[0012] As an optimal technical solution of the utility model, a cylindrical groove is provided at the upper end of the bottom of the fixed rotating shaft, and a truncated cone-shaped groove which is smaller at the top and larger at the bottom is provided at the lower end of the bottom. Threads are distributed on the surface of the truncated cone-shaped groove, and the threads are consistent in size with the threads provided on the outer surface of the clamp.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a quick-detachable PCB drilling machine drill bit, which has the following beneficial effects:

[0015] 1. The quick-detachable PCB drilling machine drill bit is provided with an annular block at the bottom of the fixture and a fan-shaped block at the top, which are respectively clamped on the screw plug and the fixed rotating shaft, so that the fixture can move together with the screw plug, and the fixture will not fall, thereby maintaining the stability of the structure.

[0016] 2. The quick-detachable PCB drilling machine drill bit increases the friction between the fixture and the drill bit by arranging a rubber block on the inner surface of the fixture, so that the drill bit is connected more tightly.

[0017] 3. The quick-release PCB drilling machine drill bit has anti-slip grooves on the surface of the screw plug to increase the friction between the finger and the screw plug, making installation and removal easier.

[0018] 4. The quick-release PCB drilling machine drill bit can compress the clamp by setting a spring in the middle of the clamp, so that the time for tightening and loosening will be shortened, speeding up installation and disassembly.

[0019] 5. The drill bit of the quick-detachable PCB drilling machine is further reinforced by providing threads on the outer surface of the fixture and the inner surface of the fixed rotating shaft, and fixing the threads with the threads. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is an enlarged schematic diagram of the middle structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0023] Figure 4 It is an enlarged schematic diagram of the middle structure of the cross section of the utility model;

[0024] Figure 5 This is a schematic diagram of the fixture structure in the utility model;

[0025] Figure 6 It is a schematic diagram of the structure of the screw plug in the utility model.

[0026] In the figure: 1. drill bit; 2. screw plug; 3. clamp; 4. ring block; 5. fan-shaped block; 6. rubber block; 7. spring; 8. fixed rotating shaft; 9. drilling machine body. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] See also Figure 1-6A quick-detachable PCB drilling machine drill bit includes a drill bit 1, a screw plug 2 is inserted at the upper end of the drill bit 1, and the screw plug 2 passes through the entire screw plug 2, a through hole is provided at the bottom of the screw plug 2, and an anti-slip groove is provided on the outer surface of the screw plug 2, three long strip through holes are provided on the side of the screw plug 2, three clamps 3 are connected to the inner side of the screw plug 2, each clamp 3 has a thread on the outer side, and the threads correspond to each other, and an annular block 4 is fixedly installed at the lower end, each clamp 3 is respectively clamped in the long strip through hole on the side of the screw plug 2 through the annular block 4 fixed at the bottom thereof, a fan-shaped block 5 is fixedly installed on the upper end of each clamp 3, and a rubber block 6 is fixedly installed on the inner surface of each clamp 3, The rubber blocks 6 inside each clamp 3 are distributed in a rectangular shape, and the rubber blocks 6 are of a rectangular structure. Two springs 7 are welded between every two clamps 3. There are six springs 7 in total, and the springs 7 are distributed in two layers, and there are three springs in one layer. The fan-shaped block 5 is connected to a fixed rotating shaft 8. A cylindrical groove is provided at the upper end of the bottom of the fixed rotating shaft 8, and a truncated cone-shaped groove with a smaller upper part and a larger lower part is provided at the lower end of the bottom. Threads are distributed on the surface of the truncated cone-shaped groove, and the thread size is consistent with the thread size provided on the outer surface of the clamp 3. Each clamp 3 is respectively clamped on the inner bottom of the fixed rotating shaft 8 through the fan-shaped block 5 fixed on the top thereof, and a drilling machine body 9 is fixedly installed on the upper end of the fixed rotating shaft 8.

[0031] In summary, the quick-release PCB drilling machine drill bit, by arranging the rubber block 6 inside the clamp 3, greatly improves the friction between the drill bit 1 and the clamp 3 when the clamp 3 is pinched, so that the drill bit 1 is fixed more stably.

[0032] The quick-detachable PCB drilling machine drill bit is configured by arranging an annular block 4 at the bottom of the fixture 3 and a fan-shaped block 5 at the top, which are respectively clamped on the screw plug 2 and the fixed rotating shaft 8, so that the fan-shaped block 5 on the fixture 3 is at the lower end of the fixed rotating shaft 8. At this time, the middle aperture of the fixture 3 reaches the maximum value. When the fan-shaped block 5 is at the upper end of the fixed rotating shaft 8, the aperture of the fixture 3 reaches the minimum value.

[0033] The quick-release PCB drilling machine drill bit can compress the clamp 3 by setting a spring 7 in the middle of the clamp 3. Threads are set on the outer surface of the clamp 3 and the inner surface of the fixed rotating shaft 8. The clamp 3 and the fixed rotating shaft 8 are tightened while pinching the clamp 3, which can effectively reduce the time for tightening the threads. Similarly, when unscrewing, the clamp 3 should be pinched first, so that the clamp 3 can be easily pulled to the maximum by just gently rotating it once. At this time, the aperture of the clamp 3 is the largest, and the drill bit 1 can be taken out. Anti-slip grooves are set on the surface of the screw plug 2 to increase the friction between the fingers and the screw plug 2, making it easier to install and disassemble.

[0034] Working principle: When disassembling, first pinch the clamp 3, and then loosen it one circle to stretch the clamp 3 to its longest length. At this time, the aperture of the clamp 3 is the largest, and the drill bit 1 can be easily taken out; when installing, first place the drill bit 1 at a suitable position on the clamp 3, and then pinch the clamp 3 while inserting the clamp 3 into the thread inside the fixed rotating shaft 8, and then rotate it to make the threads fit together, and then loosen the clamp 3 to complete the fixation; by pinching the clamp 3 and then rotating it loose or tightening the fixed rotating shaft 8, only one rotation is needed to complete the separation, which greatly improves the disassembly speed of the machine.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-release PCB drilling machine drill bit, comprising a drill bit, characterized in that: A screw plug is connected to the upper end of the drill bit, and three clamps are connected to the inner side of the screw plug. A ring block is fixedly installed at the lower end of each clamp, a fan-shaped block is fixedly installed at the upper end of each clamp, a rubber block is fixedly installed on the inner surface of each clamp, two springs are installed between every two clamps, the fan-shaped block is connected to a fixed rotating shaft, and the drilling machine body is fixedly installed on the upper end of the fixed rotating shaft.

2. The quick-release PCB drilling machine drill bit according to claim 1, characterized in that: A screw plug is inserted into the upper end of the drill bit and penetrates the entire screw plug. A through hole is provided at the bottom of the screw plug, and an anti-slip groove is provided on the outer surface of the screw plug. Three long strip-shaped through holes are provided on the side of the screw plug.

3. The quick-release PCB drilling machine drill bit according to claim 1, characterized in that: Each of the clamps is respectively clamped in the long through hole on the side of the screw plug through an annular block fixed at the bottom thereof, and each of the clamps is respectively clamped at the bottom inside the fixed rotating shaft through a sector block fixed at the top thereof.

4. The quick-release PCB drilling machine drill bit according to claim 1, characterized in that: The outer surface of each clamp is provided with threads, and the threads correspond to each other one by one. The rubber blocks inside each clamp are distributed in a rectangular shape, and the rubber blocks are rectangular parallelepiped structures.

5. The quick-release PCB drilling machine drill bit according to claim 1, characterized in that: Two springs are welded between each of the clamps, and there are six springs in total. The springs are distributed in two layers, with three springs in each layer.

6. The quick-release PCB drilling machine drill bit according to claim 1, characterized in that: The upper end of the bottom of the fixed rotating shaft is provided with a cylindrical groove, and the lower end of the bottom is provided with a truncated cone-shaped groove which is smaller at the top and larger at the bottom. The surface of the truncated cone-shaped groove is provided with threads which are consistent in size with the threads provided on the outer surface of the fixture.

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