Drill bit for drilling circuit board

Abstract

The utility model discloses a drill bit for drilling a hole in a circuit board, which belongs to the technical field of drill bits and comprises a drill spindle, a containing mechanism is arranged at the lower end of the side face of the drill spindle, a dull polish shaft is fixedly connected to the top of the drill spindle, grinding lines are arranged at the top of the dull polish shaft, a counter bore shaft is arranged at the top of the grinding lines, and a mounting shaft is arranged on the inner side of the counter bore shaft. According to the drill shaft fixing device, the containing mechanism is arranged, when the drill shaft is not used, the drill shaft can be inserted into the sleeve, the buffer cushion is made of rubber materials, the drill shaft can be fixed and prevented from shaking, and the drill shaft fixing device has the advantages that the drill shaft fixing device is simple in structure, convenient to use and high in practicability. Clear water can be filled from the upper portion of the sleeve to wash the drill spindle, the rubber plug is pulled out to discharge sewage, the T-shaped rod of one sleeve is inserted into the T-shaped groove of another sleeve, a plurality of sleeves can be connected, and the drill spindle can be reasonably stored and prevented from being damaged through the fixing effect of the sleeve and the buffer cushion on the drill spindle.

Description

Technical Field

[0001] This utility model belongs to the field of drill bit technology, specifically relating to a drill bit for drilling circuit boards. Background Technology

[0002] Currently, circuit board materials are complex and difficult to process. There are very few drilling tools available on the market for electronic boards, and their lifespan is very short, which affects the unit price of the product and processing efficiency.

[0003] Chinese patent application CN202121808322.0 discloses a drill bit for drilling circuit boards, including a grinding shaft mounted at the bottom of a sleeve. The surface of the sleeve has a detachable countersunk shaft via a snap-fit ​​structure. The top of the sleeve is connected to a support ring for auxiliary fastening via a connecting structure. The support ring has a clamping structure inside. A mounting shaft for connection is fixedly connected to the top of the sleeve. The bottom of the grinding shaft has a drill shaft for drilling holes. The surface of the countersunk shaft has grinding grooves. This drill bit for drilling circuit boards, through the action of the countersunk shaft, allows for subsequent hole enlargement after the initial hole is drilled, and secondary drilling after the initial hole. This facilitates the installation of corresponding countersunk bolts on the circuit board. Combined with the snap-fit ​​structure, the countersunk shaft can be replaced, allowing operators to use countersunk shafts with different grinding groove fineness as needed, resulting in more precise countersunk holes.

[0004] 1. The aforementioned patent has the problem of not being able to place the drill spindle. The circuit board drill spindle is a precision instrument, and improper placement of the drill spindle will lead to damage to the instrument and increase production costs. 2. The aforementioned patent has the problem of not being able to remove static electricity. Since the drill spindle needs to contact the circuit board, static electricity will cause damage to the circuit board and affect product quality. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a drill bit for drilling circuit boards, featuring efficient spindle storage and static electricity removal.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a drill bit for drilling circuit boards, comprising a drill spindle, a receiving mechanism provided at the lower end of the side of the drill spindle, a grinding shaft fixedly connected to the top of the drill spindle, a grinding groove provided at the top of the grinding groove, a countersinking shaft provided at the top of the grinding groove, a mounting shaft provided on the inner side of the countersinking shaft, a support ring provided on the side of the mounting shaft above the countersinking shaft, an antistatic mechanism provided at the top of the support ring, and a fixing component provided on the side of the support ring.

[0007] Preferably, the receiving mechanism includes a sleeve, a buffer pad, a water outlet, and a rubber stopper, wherein the buffer pad is fixedly connected to the inner side of the sleeve, a water outlet is provided at the lower inner end of the sleeve, and a rubber stopper is provided on the inner side of the water outlet.

[0008] Preferably, a conical base is fixedly connected to the lower outer end of the sleeve.

[0009] Preferably, a connecting plate is fixedly connected to the outer side of the sleeve, a T-shaped groove is provided on the top of the connecting plate, and a T-shaped rod is fixedly connected to the side of the sleeve away from the connecting plate.

[0010] Preferably, the static elimination mechanism includes an iron ring, an iron rod, an iron ring, and a grounding wire, wherein the iron rod is provided on the top of the iron ring, the iron ring is fixedly connected to the top of the iron rod, and the grounding wire is provided on the outside of the iron ring.

[0011] Preferably, a fixing hole is provided at the upper side of the iron rod, and a bolt is provided inside the fixing hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model is equipped with a receiving mechanism. The diameter of the sleeve is slightly larger than that of the drill shaft. When the drill shaft is idle, it can be inserted into the sleeve. The buffer pad is made of rubber, which can fix the drill shaft and prevent it from shaking. Clean water can be poured into the top of the sleeve to rinse the drill shaft. The wastewater can be drained by pulling out the rubber plug. The T-shaped rod of the sleeve can be inserted into the T-shaped groove of another sleeve. Multiple sleeves can be connected. Through the fixing effect of the sleeve and the buffer pad on the drill shaft, the drill shaft can be stored properly and prevented from being damaged.

[0014] 2. This utility model is equipped with an anti-static mechanism. An external motor drives the mounting shaft to rotate, thereby driving the entire device to rotate and fixing the iron ring and iron rod to the outer casing of the external motor, thereby transferring charged particles from the outside. The iron ring can be attached to the surface of the support ring and is connected to the ground through a connecting wire, thereby eliminating static electricity on the motor and drill shaft. By connecting the device to the ground, static electricity can be eliminated, protecting the circuit board. Attached Figure Description

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

[0016] Figure 2 This is a front view structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the receiving mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the static elimination mechanism of this utility model;

[0019] In the diagram: 1. Drill spindle; 2. Receiving mechanism; 21. Sleeve; 22. Buffer pad; 23. Water outlet; 24. Rubber plug; 25. Connecting plate; 26. Conical base; 27. T-slot; 28. T-rod; 3. Grinding shaft; 4. Grinding texture; 5. Countersunk shaft; 6. Support ring; 7. Static elimination mechanism; 71. Iron ring; 72. Iron rod; 73. Iron ring; 74. Grounding wire; 75. Fixing hole; 76. Bolt; 8. Mounting shaft; 9. Fixing assembly. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please see Figure 1-4 The present invention provides the following technical solution: a drill bit for drilling circuit boards, including a drill spindle 1, a receiving mechanism 2 provided at the lower side of the drill spindle 1, a grinding shaft 3 fixedly connected to the top of the drill spindle 1, a grinding texture 4 provided at the top of the grinding texture 4, a countersinking shaft 5 provided at the top of the countersinking shaft 5, a mounting shaft 8 provided on the inner side of the countersinking shaft 5, a support ring 6 provided on the side of the mounting shaft 8 above the countersinking shaft 5, an antistatic mechanism 7 provided at the top of the support ring 6, and a fixing component 9 provided on the side of the support ring 6.

[0023] Specifically, the receiving mechanism 2 includes a sleeve 21, a buffer pad 22, a water outlet 23, and a rubber plug 24. The buffer pad 22 is fixedly connected to the inner side of the sleeve 21, and a water outlet 23 is opened at the lower inner end of the sleeve 21. A rubber plug 24 is provided on the inner side of the water outlet 23.

[0024] By adopting the above technical solution, the diameter of the sleeve 21 is slightly larger than that of the drill shaft 1. When the drill shaft 1 is idle, the drill shaft 1 can be inserted into the sleeve 21. The buffer pad 22 is made of rubber, which can fix the drill shaft 1 and prevent the drill shaft 1 from shaking. Clean water can be poured in from the top of the sleeve 21 to rinse the drill shaft 1, and the rubber plug 24 can be pulled out to drain the sewage.

[0025] Specifically, a conical base 26 is fixedly connected to the lower outer side of the sleeve 21.

[0026] By adopting the above technical solution, the conical base 26 can increase the stability of the sleeve 21.

[0027] Specifically, a connecting plate 25 is fixedly connected to the outer side of the sleeve 21, a T-shaped groove 27 is provided on the top of the connecting plate 25, and a T-shaped rod 28 is fixedly connected to the side of the sleeve 21 away from the connecting plate 25.

[0028] By adopting the above technical solution, the T-shaped rod 28 of sleeve 21 can be inserted into the T-shaped groove 27 of another sleeve 21, so that multiple sleeves 21 can be connected, making the arrangement more neat.

[0029] In this embodiment, the drill spindle 1 processes positioning holes on the surface of the circuit board. Through the action of the countersunk shaft 5, subsequent hole enlargement can be performed after the drill spindle 1 has completed the hole, and secondary drilling can be performed after the hole is completed, which makes it convenient for workers to install the corresponding countersunk screws on the circuit board. The mounting shaft 8 can be connected to the external motor shaft. The fixing component 9 can reduce the impact of accidental breakage of the mounting shaft 8. The sleeve 21 has a diameter slightly larger than the drill spindle 1. When the drill spindle 1 is idle, it can be inserted into the sleeve 21. The buffer pad 22 is made of rubber, which can fix the drill spindle 1 and prevent it from shaking. Clean water can be poured into the sleeve 21 from above to rinse the drill spindle 1, and the rubber plug 24 can be pulled out to drain the sewage. The conical base 26 can increase the stability of the sleeve 21. The T-shaped rod 28 of the sleeve 21 can be inserted into the T-shaped groove 27 of another sleeve 21 to connect multiple sleeves 21, making the arrangement more neat. Through the fixing effect of the sleeve 21 and the buffer pad 22 on the drill spindle 1, the drill spindle 1 can be stored reasonably to prevent damage to the drill spindle 1.

[0030] Example 2

[0031] The difference between this embodiment and embodiment 1 is that the static elimination mechanism 7 includes an iron ring 71, an iron rod 72, an iron ring 73 and a grounding wire 74. The iron rod 72 is provided on the top of the iron ring 71, the iron ring 73 is fixedly connected to the top of the iron rod 72, and the grounding wire 74 is provided on the outside of the iron ring 73.

[0032] By adopting the above technical solution, the external motor drives the mounting shaft 8 to rotate, thereby driving the entire device to rotate, fixing the iron ring 73 and iron rod 72 to the outer casing of the external motor, thereby transferring the charged particles of the external motor. The iron ring 71 can be attached to the surface of the support ring 6, and the iron ring 73 is connected to the ground through the grounding wire 74, thereby eliminating static electricity on the motor and drill shaft 1.

[0033] Specifically, a fixing hole 75 is provided on the upper side of the iron rod 72, and a bolt 76 is provided on the inner side of the fixing hole 75.

[0034] By adopting the above technical solution, the iron rod 72 and the external motor are connected by bolt 76, making disassembly more convenient.

[0035] In this embodiment, an external motor drives the mounting shaft 8 to rotate, thereby rotating the entire device and fixing the iron ring 73 and iron rod 72 to the outer casing of the external motor to transfer charged particles from the external motor. The iron ring 71 can be attached to the surface of the support ring 6, and the iron ring 73 is connected to the ground through the grounding wire 74 to eliminate static electricity on the motor and drill shaft 1. The iron rod 72 and the external motor are connected by bolts 76 for easier disassembly. Connecting the device to the ground can eliminate static electricity and protect the circuit board.

[0036] The structure and working principle of the drill spindle 1, grinding spindle 3, grinding texture 4, countersunk spindle 5, support ring 6, mounting spindle 8 and fixing component 9 in this utility model have been disclosed in a drill bit for drilling circuit boards disclosed in Chinese patent application number CN202121808322.0.

[0037] The working principle and usage process of this utility model are as follows: When in use, the drill spindle 1 processes positioning holes on the surface of the circuit board. Through the action of the countersunk shaft 5, subsequent hole enlargement can be performed after the drill spindle 1 has completed its initial drilling. Secondary drilling can then be performed, facilitating the installation of corresponding countersunk screws on the circuit board. The mounting shaft 8 can be connected to an external motor shaft. The fixing component 9 reduces the impact of accidental breakage of the mounting shaft 8. The sleeve 21 has a diameter slightly larger than the drill spindle 1. When the drill spindle 1 is idle, it can be inserted into the sleeve 21. The buffer pad 22 is made of rubber, which can fix the drill spindle 1 and prevent it from shaking. Clean water can be poured into the sleeve 21 from above to rinse the drill spindle 1, and the rubber plug 24 can be removed to drain the wastewater. The conical base 26 can increase the size of the sleeve 21. For stability, the T-shaped rod 28 of sleeve 21 is inserted into the T-shaped groove 27 of another sleeve 21, allowing multiple sleeves 21 to be connected for neater placement. The fixing effect of sleeves 21 and buffer pads 22 on drill shaft 1 ensures proper storage and prevents damage. An external motor drives the mounting shaft 8 to rotate, thereby rotating the entire device. The iron ring 73 and iron rod 72 are fixed to the outer casing of the external motor to transfer charged particles from the external motor. The iron ring 71 can be attached to the surface of the support ring 6, and the iron ring 73 is connected to the ground through the grounding wire 74 to eliminate static electricity on the motor and drill shaft 1. The iron rod 72 and the external motor are connected by bolts 76 for easier disassembly. Connecting the device to the ground eliminates static electricity and protects the circuit board.

[0038] 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 drill bit for drilling circuit boards, comprising a drill spindle (1), characterized in that: The drill spindle (1) has a receiving mechanism (2) at the lower side of its side. The drill spindle (1) is fixedly connected to a grinding shaft (3). The grinding shaft (3) has grinding grooves (4) at its top. The grinding grooves (4) have a countersinking shaft (5) at its top. The countersinking shaft (5) has an installation shaft (8) on its inner side. The side of the installation shaft (8) above the countersinking shaft (5) has a support ring (6). The support ring (6) has an antistatic mechanism (7) at its top. The support ring (6) has a fixing component (9) on its side.

2. The drill bit for drilling circuit boards according to claim 1, characterized in that: The receiving mechanism (2) includes a sleeve (21), a buffer pad (22), a water outlet (23), and a rubber plug (24). The inner side of the sleeve (21) is fixedly connected to the buffer pad (22), and the lower inner side of the sleeve (21) is provided with a water outlet (23). The inner side of the water outlet (23) is provided with a rubber plug (24).

3. A drill bit for drilling circuit boards according to claim 2, characterized in that: A conical base (26) is fixedly connected to the lower outer side of the sleeve (21).

4. A drill bit for drilling circuit boards according to claim 2, characterized in that: A connecting plate (25) is fixedly connected to the outer side of the sleeve (21). A T-shaped groove (27) is provided on the top of the connecting plate (25). A T-shaped rod (28) is fixedly connected to the side of the sleeve (21) away from the connecting plate (25).

5. A drill bit for drilling circuit boards according to claim 1, characterized in that: The static eliminator (7) includes an iron ring (71), an iron rod (72), an iron ring (73), and a grounding wire (74). The iron rod (72) is provided on the top of the iron ring (71), the iron ring (73) is fixedly connected to the top of the iron rod (72), and the grounding wire (74) is provided on the outside of the iron ring (73).

6. A drill bit for drilling circuit boards according to claim 5, characterized in that: The upper side of the iron rod (72) is provided with a fixing hole (75), and a bolt (76) is provided inside the fixing hole (75).

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