Precise cutting drill pin for PCB (printed circuit board) micropores

Abstract

The utility model discloses a PCB micropore precise cutting drill point which comprises a drill point body, the top end of the drill point body is integrally connected with an installation base playing a storage role, and installation rods are arranged on the upper side of the drill point body in a bilateral symmetry mode. A cooling structure and a liquid adding structure are arranged on the mounting base, the cooling structure comprises a water outlet hole, a sealing block, a mounting plate, an adjusting rod, a mounting disc, a guide rod, a connecting base, a mounting frame, a threaded rod and a motor, and the liquid adding structure comprises a water adding opening and a sealing plug; the bottom end of the mounting rod is integrally connected with a mounting block, the bottom end of the mounting rod is fixedly connected with a connecting rod, the connecting rod is connected into the hollow structure of the connecting lug in a nested mode, and the connecting lug is fixedly connected to the outer wall of the mounting base in a bilateral symmetry mode. According to the PCB micropore precise cutting drill point, cooling is convenient, the temperature of the drill point is prevented from being too high, the drill point is convenient to replace, and meanwhile cooling water is easy to add.

Description

Technical Field

[0001] This utility model relates to the field of precision cutting drill bits for PCB micro-holes, specifically precision cutting drill bits for PCB micro-holes. Background Technology

[0002] PCB board is a printed circuit board, which is widely used in various electronic devices. In the manufacturing process of printed circuit boards, drill bits are mostly used to perform mechanical drilling processes for processing circuit boards. Currently, there are many styles of precision cutting drill bits for PCB micro-holes on the market.

[0003] However, the utility model patent with authorization announcement number CN207205354U discloses a high-efficiency cutting drill bit, including: a needle body: the needle body is provided with a spiral groove, the groove is composed of three U-shaped grooves arranged in parallel along the axial direction of the needle body; a cutting part: the cutting part is located at the head of the needle body, the cutting part and the front end of the groove form a cutting edge, the horizontal cross section of the cutting edge is a continuous curved surface. The high-efficiency cutting drill bit of this utility model has a large cutting area, multiple cutting angles, and high cutting efficiency.

[0004] The existing technical solutions mentioned above have the following drawbacks: the drill bit generates heat during operation, and excessive heat can cause the drill bit to deform, making it prone to damage. In addition, the drill bit is installed on the drilling machine using screws, which requires specific tools for disassembly and assembly. Repeated operation can also easily damage the screws or screw holes. Furthermore, adding cooling water is cumbersome and reduces work efficiency. Therefore, we propose a precision cutting drill bit for PCB micro-holes to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a precision cutting drill bit for PCB micro-holes, in order to solve the problems mentioned in the background art, such as the inconvenience of cooling, the tendency of the drill bit to overheat, the inconvenience of replacing the drill bit, and the difficulty in adding cooling water.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a precision cutting drill bit for PCB micro-holes, comprising: a drill bit body, a mounting base for storage integratedly connected to the top of the drill bit body, and mounting rods symmetrically arranged on the upper side of the drill bit body;

[0007] Also includes:

[0008] The mounting base is provided with a cooling structure and a liquid filling structure. The cooling structure includes a water outlet, a sealing block, a mounting plate, an adjusting rod, a mounting disc, a guide rod, a connecting seat, a mounting bracket, a threaded rod, and a motor. The liquid filling structure includes a water inlet and a sealing plug.

[0009] The bottom end of the mounting rod is integrally connected with a mounting block, and the bottom end of the mounting rod is fixedly connected with a connecting rod, and the connecting rod is nestedly connected in the hollow structure of the connecting lug, and the connecting lug is fixedly connected on the outer wall of the mounting seat in left-right symmetry.

[0010] Preferably, the bottom end of the mounting seat is provided with a water outlet hole in left-right symmetry, and the water outlet hole is fitted with a sealing block inside, and the sealing block is fixedly connected to the bottom end of the mounting plate in left-right symmetry.

[0011] Preferably, the top end of the mounting plate is fixedly connected with an adjusting rod, and the adjusting rod is nestedly connected to the top wall of the mounting seat, wherein the upper end of the adjusting rod is threadedly connected to the center of the mounting disc.

[0012] Preferably, the right upper end of the mounting disc is connected with a guide rod, and the upper end of the guide rod is fixedly connected to the lower end of the connecting seat, and the lower left end of the connecting seat is embeddedly connected with a mounting bracket.

[0013] Preferably, the bottom end of the mounting bracket is rotatably connected with a threaded rod, and the top end of the threaded rod is provided with a motor, and the lower end of the threaded rod is threadedly connected to the inside of the left end of the mounting disc.

[0014] Preferably, the sealing block is in a lifting structure inside the mounting seat through the threaded rod and the guide rod.

[0015] Preferably, the front upper end of the mounting seat is provided with a water inlet, and the inside of the water inlet is fitted with a sealing plug with a "convex" cross-section.

[0016] Preferably, the lower end of the connecting rod is threadedly connected with a round cover, and the mounting rods on the upper side of the round cover are fixedly connected to the bottom end of the connecting seat in left-right symmetry.

[0017] Compared with the prior art, the PCB micro-hole precision cutting drill needle has the advantages that it is convenient to cool, prevents the drill needle from being too high in temperature, and is convenient to replace the drill needle and easy to add cooling water.

[0018] 1. The threaded rod and the sealing block are provided, and the sealing block is in a structure design inside the mounting seat through the threaded rod and the guide rod, so that the mounting disc is lifted by the guide rod when the threaded rod rotates;

[0019] The mounting disc drives the mounting plate to rise until the sealing block is separated from the inside of the water outlet hole, and the cooling water in the mounting seat flows on the outer wall of the drill needle body through the water outlet hole, so that it is convenient to cool and prevent the drill needle body from being too high in temperature.

[0020] 2. The connecting rod and the round cover are provided, and the upper end of the adjusting rod is threadedly connected to the center of the mounting disc, so that the adjusting rod is separated from the inside of the mounting disc when the adjusting rod rotates.

[0021] The lower end of the connecting rod is threadedly connected with a round cover, so that when the round cover is separated from the connecting rod, the drill needle body is pulled downward until the connecting lug is separated from the round cover, thereby facilitating replacement of the drill needle body;

[0022] 3. The water inlet is provided with a sealing plug, and the sealing plug with a "convex" shaped structure in cross section is clamped and connected in the water inlet, so that when the sealing plug is separated from the water inlet, the cooling water is stored in the inside of the mounting seat through the water inlet, thereby facilitating the addition of cooling water. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a front view of the sectional structure of the utility model;

[0024] Figure 2 It is a left side view of the sectional structure of the utility model mounting seat and sealing plug connection;

[0025] Figure 3 It is a bottom view of the structure of the utility model mounting seat and water outlet hole connection;

[0026] Figure 4 It is a whole structure diagram of the utility model connecting rod and connecting lug connection;

[0027] Figure 5 It is a whole structure diagram of the utility model sealing block and mounting plate connection;

[0028] Figure 6 It is a front view of the structure of the utility model mounting seat and water inlet connection.

[0029] In the figure: 1, drill needle body; 2, mounting seat; 3, water outlet hole; 4, sealing block; 5, mounting plate; 6, adjusting rod; 7, mounting disc; 8, guide rod; 9, connecting seat; 10, mounting frame; 11, threaded rod; 12, motor; 13, mounting rod; 14, mounting block; 15, connecting rod; 16, connecting lug; 17, round cover; 18, water inlet; 19, sealing plug. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] Please refer to Figures 1-6The utility model provides technical scheme: PCB micropore precision cutting drill needle, including drill needle main part 1, mounting seat 2, water outlet hole 3, sealing block 4, mounting plate 5, adjusting lever 6, mounting disc 7, guide rod 8, connecting seat 9, mounting bracket 10, threaded rod 11, motor 12, mounting rod 13, mounting block 14, connecting rod 15, connecting lug 16, round cover 17, water inlet 18 and sealing plug 19.

[0032] Embodiment 1: the existing drill needle works and can produce temperature, and the temperature is too high to make the drill needle deform, leads to the drill needle to be easily damaged, therefore this embodiment passes through the following technical scheme, such as Figure 1 、 Figure 3 And Figure 5 Because the cooling structure includes water outlet hole 3, sealing block 4, mounting plate 5, adjusting lever 6, mounting disc 7, guide rod 8, connecting seat 9, mounting bracket 10, threaded rod 11 and motor 12, the bottom end of mounting seat 2 is opened with water outlet hole 3 left and right symmetrical, and the inside of water outlet hole 3 is clamped and connected with sealing block 4, adjusting lever 6 is nested and connected on the top wall of mounting seat 2, the right upper end of mounting disc 7 is connected with guide rod 8, the lower end of threaded rod 11 is screw connected in the left end inside of mounting disc 7, sealing block 4 is in the inside of mounting seat 2 in the lifting structure through threaded rod 11 and guide rod 8, therefore the upper end of connecting seat 9 is installed on the drill machine, makes the drill machine drive connecting seat 9 to rotate and lets drill needle main part 1 carry out the drilling of PCB board, when motor 12 works, drive threaded rod 11 rotates on mounting bracket 10, make the right end of mounting disc 7 slide up on guide rod 8, the left end of mounting disc 7 moves up on threaded rod 11, drive mounting disc 7 to move up stably through guide rod 8 and threaded rod 11, drive adjusting lever 6 to slide up on the top wall of mounting seat 2 through mounting disc 7, so that the left and right symmetrical sealing block 4 is separated from the water outlet hole 3 in the corresponding position, the cooling water in the inside of mounting seat 2 flows to the outer wall of drill needle main part 1 through the left and right symmetrical water outlet hole 3, makes the cooling water cool drill needle main part 1, thereby convenient for cooling, prevent drill needle main part 1 temperature from being too high;

[0033] Embodiment 2: the existing drill needle is completed on the drill machine through screw, needs to be completed through specific tool when disassembling, and multiple operations also easily lead to the damage of screw or screw hole, therefore this embodiment passes through the following technical scheme, such as Figure 1 And Figure 4Since the connecting rod 15 is nestedly connected in the hollow structure of the connecting lug 16, the connecting lug 16 is symmetrically fixed and connected on the outer wall of the mounting base 2, the lower end of the connecting rod 15 is threadedly connected with the round cover 17, the upper end of the adjusting rod 6 is threadedly connected on the center of the mounting disc 7, therefore, when replacement is needed, the adjusting rod 6 is rotated to make the upper end thereof separated from the mounting disc 7, the two groups of round covers 17 are respectively rotated to make the lower end thereof separated from the connecting rod 15, the drill needle body 1 is pulled downwardly until the connecting lug 16 symmetrically arranged is separated from the connecting rod 15, the drill needle body 1 is taken away, a new drill needle body 1 is placed on the lower side of the connecting base 9, the drill needle body 1 is pushed to make the hollow structure of the connecting lug 16 symmetrically arranged nestedly connected on the connecting rod 15 in the corresponding position, the upper end of the connecting lug 16 is abutted on the lower end of the mounting block 14, the round cover 17 is rotated to be threadedly connected on the lower end of the connecting rod 15, the position of the drill needle body 1 is limited through the connecting rod 15, the connecting lug 16 and the round cover 17, the adjusting rod 6 is rotated to make the upper end thereof threadedly connected on the center of the mounting disc 7, thereby facilitating replacement of the drill needle body 1.

[0034] Embodiment 3: The existing cooling water is troublesome to add, which reduces work efficiency, therefore, the embodiment adds water through the following technical scheme, such as Figure 1 、 Figure 2 and Figure 6 Since the liquid adding structure comprises the water adding opening 18 and the sealing plug 19, the front upper end of the mounting base 2 is provided with the water adding opening 18, the sealing plug 19 with the cross section in the "convex" character structure is clamped and connected in the water adding opening 18, and the sealing block 4 is clamped and connected in the water outlet hole 3, therefore, when the cooling water needs to be added, the sealing plug 19 is pulled forward to make the sealing plug 19 separated from the inside of the water adding opening 18, the cooling water is added into the inside of the mounting base 2 through the water adding opening 18, and then the sealing plug 19 is clamped and connected in the inside of the water adding opening 18, so that the front end with the cross section in the "convex" character structure is abutted on the front end of the mounting base 2, thereby easily adding the cooling water.

[0035] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the existing technology, the machinery, parts and equipment adopt the conventional type in the existing technology, and the circuit connection adopts the conventional connection mode in the existing technology, which will not be described here.

[0036] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A PCB micro-hole precision cutting drill bit, comprising: The drill needle body (1) is integrally connected with the mounting seat (2) for storage and the mounting rod (13) symmetrically arranged on the upper side of the drill needle body (1); It is characterized in that, further comprising: The mounting seat (2) is provided with a cooling structure and a liquid adding structure, wherein the cooling structure comprises a water outlet hole (3), a sealing block (4), a mounting plate (5), an adjusting rod (6), a mounting disc (7), a guide rod (8), a connecting seat (9), a mounting frame (10), a threaded rod (11) and a motor (12), and the liquid adding structure comprises a water adding port (18) and a sealing plug (19). The bottom end of the mounting rod (13) is integrally connected with a mounting block (14), and the bottom end of the mounting rod (13) is fixedly connected with a connecting rod (15), and the connecting rod (15) is nested and connected in the hollow structure of the connecting lug (16), and the connecting lug (16) is fixedly connected on the outer wall of the mounting seat (2) in a left-right symmetrical manner.

2. The PCB micro-bore precision cutting drill according to claim 1, characterized in that: The bottom end of the mounting seat (2) is provided with a water outlet hole (3) in a left-right symmetrical manner, and the inside of the water outlet hole (3) is clamped and connected with a sealing block (4), and the sealing block (4) is fixedly connected to the bottom end of the mounting plate (5) in a left-right symmetrical manner.

3. The PCB micro-bore precision cutting drill according to claim 2, characterized in that: The top end of the mounting plate (5) is fixedly connected with an adjusting rod (6), and the adjusting rod (6) is nested and connected on the top wall of the mounting seat (2), wherein the upper end of the adjusting rod (6) is threadedly connected to the center of the mounting disc (7).

4. The PCB micro-bore precision cutting drill according to claim 3, characterized in that: The upper right end of the mounting disc (7) is connected with a guide rod (8), and the upper end of the guide rod (8) is fixedly connected to the lower end of the connecting seat (9), and the lower left end of the connecting seat (9) is embeddedly connected with a mounting frame (10).

5. The PCB microbore precision cutting drill according to claim 4, wherein: The bottom end of the mounting frame (10) is rotatably connected with a threaded rod (11), and the top end of the threaded rod (11) is provided with a motor (12), and the lower end of the threaded rod (11) is threadedly connected to the inside of the left end of the mounting disc (7).

6. The PCB micro-bore precision cutting drill according to claim 2, wherein: The sealing block (4) is in a lifting structure inside the mounting seat (2) through the threaded rod (11) and the guide rod (8).

7. The PCB microbore precision cutting drill according to claim 1, wherein: The front upper end of the mounting seat (2) is provided with a water adding port (18), and the inside of the water adding port (18) is clamped and connected with a sealing plug (19) in a "convex" cross-sectional structure.

8. The PCB microbore precision cutting drill according to claim 1, wherein: The lower end of the connecting rod (15) is threadedly connected with a round cover (17), and the mounting rod (13) on the upper side of the round cover (17) is fixedly connected to the bottom end of the connecting seat (9) in a left-right symmetrical manner.

Images