Replaceable drill bit module for CNC automobile assembly machining

By designing a replaceable drill tip structure and a high-efficiency chip removal component, the problems of easy damage to the drill tip and low chip removal efficiency in traditional drill bit modules are solved, enabling rapid replacement of the drill tip and efficient chip removal, reducing costs and improving machining stability.

CN223588378UActive Publication Date: 2025-11-25CHANGSHU MING LI JIA METAL PROD CO LTD
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Patent Information

Application Number
CN202422640487.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-11-25
Estimated Expiration
2034-10-31

AI Technical Summary

Technical Problem

The existing drill bit module adopts an integrated design, which makes the drill tip part easy to be damaged, resulting in increased overall replacement costs, and the traditional chip removal method is inefficient.

Method used

The design features a replaceable drill tip structure, enabling quick disassembly and installation of the drill tip through easy assembly and disassembly components. It also employs a high-efficiency chip removal component for air-jet chip removal, reducing chip interference and improving machining stability.

Benefits of technology

It enables individual replacement of drill tips, reduces replacement costs, and improves processing efficiency and stability, especially significantly improving chip removal of sticky or irregular debris.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a replaceable drill bit module for CNC (computer numerical control) automobile component machining, which comprises a drill bit component, a drill rod, a connecting section, a mounting rod and a drill tip, the convenient dismounting and mounting assembly comprises placement grooves, springs, clamping heads, rectangular blocks and through holes, the placement grooves are formed in the two sides of the top end of the drill rod, the rear portions of the placement grooves are fixedly connected with one ends of the springs, the other ends of the springs are fixedly connected with the clamping heads, the bottoms of the two sides of the drill point are fixedly connected with the rectangular blocks, and the through holes are formed in the middles of the rectangular blocks. And the clamping head is movably connected with the through hole. Under the cooperation of the clamping head and the spring, the drill point can be rapidly and independently replaced, and compared with the overall replacement of a traditional drill bit assembly, more cost is saved; meanwhile, the outermost side does not exceed the outermost side of the drill tip in the vertical direction when the clamping connector is connected, the clamping connector can be prevented from being touched by mistake in the drilling process, and then normal and smooth use of the clamping connector is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of drill bits, and in particular to a replaceable drill bit module for CNC machining of automotive components. Background Technology

[0002] The replaceable drill module for CNC automotive component machining is a tool system specifically designed for computer numerical control (CNC) machine tools for machining automotive parts.

[0003] Most existing drill bit modules adopt an integrated design. If any part of the drill bit is damaged, the entire drill bit module must be disassembled and replaced. However, in actual use, the drill tip part of the drill bit module suffers the most wear and is frequently damaged, while the drill rod and other parts of the drill bit module are less prone to damage. Directly replacing the drill bit module increases costs. Therefore, there is a need for a structure that allows for quick replacement of the drill tip part separately to save manufacturing costs. Utility Model Content

[0004] The purpose of this invention is to provide a replaceable drill bit module for CNC automotive component machining, in order to solve the problem mentioned in the background art. Most existing drill bit modules adopt an integrated design, and no matter which part of the drill bit is damaged, the entire drill bit module must be disassembled and replaced. However, in actual use, the drill tip part of the drill bit module suffers the most wear and is often damaged, while the drill rod and other parts of the drill bit module are not easily damaged. Directly replacing the drill bit module will increase costs.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a replaceable drill bit module for CNC machining of automotive components, comprising:

[0007] A drill bit assembly includes a drill rod, a receiving section, an mounting rod, and a drill tip. The receiving section is fixedly connected to the bottom of the drill rod, the mounting rod is fixedly connected to the bottom of the receiving section, and the drill tip is movably connected to the top of the drill rod. A convenient disassembly and assembly assembly includes a placement slot, a spring, a clamping connector, a rectangular block, and a through hole. Placement slots are formed on both sides of the top of the drill rod. One end of the spring is fixedly connected to the rear of the placement slot, and the other end of the spring is fixedly connected to the clamping connector. Rectangular blocks are fixedly connected to the bottom of both sides of the drill tip. A through hole is formed in the middle of the rectangular block, and the clamping connector is movably connected to the through hole.

[0008] Furthermore, the drill tip is generally in the shape of a quadrilateral pyramid.

[0009] Furthermore, the depth of the placement groove is equal to the length of the spring when it is not deformed.

[0010] Furthermore, the connecting end of the card connector is hemispherical.

[0011] Furthermore, the length of the clamping connector is greater than the thickness of the rectangular block, and when the clamping connector is connected, the outermost vertical direction does not exceed the outermost edge of the drill tip.

[0012] Furthermore, the convenient assembly and disassembly component also includes a limiting rod and a limiting groove. The limiting rod is fixedly connected to the middle of the bottom end of the drill tip, and a limiting groove is opened in the middle of the top end of the drill rod. The limiting rod movably inserts into the limiting groove.

[0013] Furthermore, both the limiting rod and the limiting groove have quadrilateral cross-sections.

[0014] Furthermore, it also includes a high-efficiency chip removal assembly, which includes an installation channel, an air compressor, a main pipe, branch pipes, and a receiving plate. An installation channel is opened in the middle of the drill pipe and the receiving section. The main pipe and branch pipes are installed in the middle of the installation channel. Four branch pipes are installed on the side of the tail end of the main pipe. The receiving plate is fixedly connected to the side of the receiving section. The air compressor is fixedly connected to one side of the receiving plate. The air compressor is fixedly connected to one end of the main pipe.

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] This invention allows for the rapid disassembly of the drill tip by pressing the snap-fit ​​connector, in conjunction with a spring. Similarly, it enables the rapid installation of a new drill tip, allowing for the individual replacement of damaged drill tips. This is more cost-effective than replacing the entire drill bit assembly in the traditional method. Furthermore, when the snap-fit ​​connector is connected, its outermost vertical direction should not exceed the outermost edge of the drill tip, preventing accidental contact with the snap-fit ​​connector during drilling and ensuring its proper and smooth operation.

[0017] Based on the aforementioned beneficial effects, the provided air compressor can spray air through the main pipe and the branch pipe to achieve air-jet chip removal. Air-jet chip removal utilizes the impact force of high-pressure gas to quickly blow chips out of the drill hole. Compared with thread groove chip removal, it is more effective for removing some sticky or irregularly shaped chips. At the same time, air-jet chip removal can quickly remove chips, reduce chip interference with the drill bit, reduce the vibration amplitude of the drill bit, and improve machining stability. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0020] Figure 2 This is a schematic diagram of the drill tip connection of this utility model;

[0021] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a schematic diagram showing the connection between the main pipe and the branch pipes of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 101. Drill pipe; 102. Receiving section; 103. Mounting rod; 104. Drill tip;

[0025] 201. Placement slot; 202. Spring; 203. Snap connector; 204. Rectangular block; 205. Through hole; 206. Limiting rod; 207. Limiting groove;

[0026] 301. Installation channel; 302. Air compressor; 303. Main pipe; 304. Branch pipe; 305. Receiving plate. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0030] Please see Figure 1-4 As shown, this embodiment is a replaceable drill bit module for CNC automotive component machining, comprising:

[0031] The drill bit assembly includes a drill rod 101, a receiving section 102, an mounting rod 103, and a drill tip 104. The bottom of the drill rod 101 is fixedly connected to the receiving section 102, the bottom of the receiving section 102 is fixedly connected to the mounting rod 103, and the top of the drill rod 101 is movably connected to the drill tip 104. The easy-to-assemble and disassemble assembly includes a placement slot 201, a spring 202, a snap-fit ​​connector 203, a rectangular block 204, and a through hole 205. Placement slots 201 are opened on both sides of the top of the drill rod 101. One end of the spring 202 is fixedly connected to the rear of the placement slot 201, and the other end of the spring 202 is fixedly connected to the snap-fit ​​connector 203. Rectangular blocks 204 are fixedly connected to the bottom of both sides of the drill tip 104. A through hole 205 is opened in the middle of the rectangular block 204, and the snap-fit ​​connector 203 is movably connected to the through hole 205.

[0032] Mounting rod 103 is used to connect to external CNC machining machinery to realize the overall installation and disassembly of drill bit assembly. The placement groove 201 provides protection for the movement and deformation of spring 202 and clamping connector 203. The rectangular block 204 provides protection for the opening of through hole 205.

[0033] The drill tip 104 is generally in the shape of a quadrilateral pyramid;

[0034] The shape of the drill tip 104 facilitates the initial removal of chips.

[0035] The depth of the placement slot 201 is equal to the length of the spring 202 when it is not deformed;

[0036] The dimensions of the above-mentioned components ensure that the spring 202 functions properly.

[0037] The connector 203 has a hemispherical connection end;

[0038] The shape of the card connector 203 facilitates quick replacement.

[0039] The length of the clamp connector 203 is greater than the thickness of the rectangular block 204. When the clamp connector 203 is connected, the outermost vertical direction does not exceed the outermost edge of the drill tip 104.

[0040] The dimensions and position of the aforementioned clamp connector 203 ensure that it is not accidentally touched during drilling.

[0041] The easy-to-assemble and disassemble components also include a limiting rod 206 and a limiting groove 207. The limiting rod 206 is fixedly connected to the middle of the bottom end of the drill tip 104, and the limiting groove 207 is opened in the middle of the top end of the drill rod 101. The limiting rod 206 can move through the limiting groove 207.

[0042] Both the limiting rod 206 and the limiting groove 207 have quadrilateral cross-sections.

[0043] The limiting rod 206 is used in conjunction with the limiting groove 207 to further limit and fix the drill tip 104.

[0044] It also includes a high-efficiency chip removal component, which includes an installation channel 301, an air compressor 302, a main pipe 303, a branch pipe 304, and a receiving plate 305. The installation channel 301 is opened in the middle of the drill pipe 101 and the receiving section 102. The main pipe 303 and the branch pipe 304 are installed in the middle of the installation channel 301. Four branch pipes 304 are installed on the side of the tail end of the main pipe 303. The receiving plate 305 is fixedly connected to the side of the receiving section 102. The air compressor 302 is fixedly connected to one side of the receiving plate 305. The air compressor 302 is fixedly connected to one end of the main pipe 303.

[0045] The installation channel 301 provides a guarantee for the installation of the main pipe 303 and the branch pipe 304. The installation of the air compressor 302 provides a guarantee for the generation of airflow. The receiving plate 305 is used to receive and install the air compressor 302.

[0046] Working principle: When the drill tip 104 wears down, the retaining connector 203 is pressed down. At this time, the spring 202 is compressed in the placement groove 201. When the retaining connector 203 moves to the inside of the through hole 205, the drill tip 104 is pulled up to remove it. Then, a new drill tip 104 is taken out, and the limiting rod 206 is inserted into the limiting groove 207. When the rectangular block 204 contacts the retaining connector 203, the spring 202 is compressed. When the through hole 205 on the rectangular block 204 moves to the retaining connector 203, the spring 202 returns to its original position, and the retaining connector 203 is repositioned. The drill bit 104 is ejected into the through hole 205 to replace the old drill bit 104. Then, the relevant mechanical switch is turned on, which drives the drill rod 101 and the drill bit 104 to rotate, thus drilling the automotive component. At the same time, the air compressor 302 is turned on, and the airflow generated is blown out through the main pipe 303 and finally through the branch pipe 304 to remove the cuttings. This step can replace the damaged drill bit individually, which is more cost-effective than replacing the entire drill bit assembly in the traditional way. At the same time, compared with the chip removal of the thread groove, it is more effective in removing some sticky or irregularly shaped chips.

[0047] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A replaceable drill module for CNC automotive component machining, characterized by, Include: Drill bit assembly, the drill bit assembly includes drill rod (101), the receiving section (102), the mounting rod (103) and the drill tip (104), the drill rod (101) bottom fixed connection receiving section (102), the receiving section (102) bottom fixed connection mounting rod (103), the drill rod (101) top end movable connection drill tip (104);Convenient disassembly assembly, the convenient disassembly assembly includes placement slot (201), spring (202), clamping head (203), rectangular block (204) and through-hole (205), the drill rod (101) top end both sides are provided with placement slot (201), the rear part of placement slot (201) is fixedly connected with one end of spring (202), the other end of spring (202) is fixedly connected with clamping head (203), the bottom of both sides of drill tip (104) is fixedly connected with rectangular block (204), the middle part of rectangular block (204) is provided with through-hole (205), and clamping head (203) is movably connected with through-hole (205).

2. A replaceable drill module for CNC machining of automotive components as claimed in claim 1 wherein, The drill tip (104) is a four-sided cone as a whole.

3. A replaceable drill module for CNC machining of automotive components as claimed in claim 1 wherein, The depth of the placement slot (201) is equal to the length of the spring (202) when it is not deformed.

4. A replaceable drill module for CNC machining of automotive components as claimed in claim 1 wherein, The connecting end of the clamping head (203) is semispherical.

5. A replaceable drill module for CNC machining of automotive components as claimed in claim 1 wherein, The length of the clamping head (203) is greater than the thickness of the rectangular block (204), and the outermost vertical direction of the clamping head (203) does not exceed the outermost of the drill tip (104) when connected.

6. A replaceable drill module for CNC machining of automotive components as claimed in claim 1 wherein, The convenient disassembly assembly further includes a limiting rod (206) and a limiting groove (207), the bottom of the drill tip (104) is fixedly connected with the limiting rod (206), and the top of the drill rod (101) is provided with the limiting groove (207), and the limiting rod (206) is movably inserted into the limiting groove (207).

7. A replaceable drill module for CNC machining of automotive components according to claim 6, wherein, The limiting rod (206) and the limiting groove (207) are both quadrilaterals in cross section.

8. A replaceable drill module for CNC machining of automotive components as claimed in claim 1 wherein, Further include high-efficiency chip removal assembly, the high-efficiency chip removal assembly includes installation channel (301), air compressor (302), main pipe (303), shunt pipe (304) and receiving plate (305), the middle part of drill rod (101) and receiving section (102) is provided with installation channel (301), the middle part of installation channel (301) is provided with main pipe (303) and shunt pipe (304), the tail end of main pipe (303) is provided with four shunt pipes (304) on the side, the side of receiving section (102) is fixedly connected with receiving plate (305), one side of receiving plate (305) is fixedly connected with air compressor (302), and one end of air compressor (302) is fixedly connected with main pipe (303).