Composite tool capable of conveniently replacing drilling tool
By designing a composite tool with a positioning groove on the front end of the tool body and a side fixing mechanism, the problems of operational complexity and insufficient precision caused by frequent tool changes are solved, and efficient and stable worm gear hole and drilling machining is achieved.
Patent Information
- Application Number
- CN202423205477.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-25
AI Technical Summary
The frequent tool changes in current machining processes lead to high operational complexity, increased costs, insufficient machining accuracy, and low stability, especially in ensuring the coaxiality of the worm gear hole and the drill hole.
A composite cutting tool is designed to facilitate the installation and fixation of the drill bit by opening a positioning groove on the front end of the tool body and equipping it with a side fixing mechanism. The rotation of the tool body drives the rotation of the drill bit. The coaxiality accuracy is optimized by combining the design of the front end, middle end and end end of the tool body.
It improved processing efficiency, optimized coaxiality accuracy, reduced costs, and enhanced processing stability and reliability.
Smart Images

Figure CN223642831U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining tool technology, specifically a composite tool with easily replaceable drilling tools. Background Technology
[0002] Machining tools refer to various equipment and tools used in the machining process. They are mainly used for cutting, grinding, drilling and other machining operations on workpieces. These tools can be operated manually, powered or automated, and are used to process materials such as metal, wood and plastic to make various parts and finished products.
[0003] In existing machining processes, cutting tools are often used to process machinery, especially for machining worm gear holes. Specialized worm gear reamers are used, and drilling is also required at the bottom. However, existing machining tools generally use separate drill bits or cutting tools for operation. During the machining process, tools need to be changed frequently, which increases the complexity and time cost of operation and affects the machining efficiency. Because different tools are used for machining, it is difficult to ensure the coaxiality of the worm gear hole and the drilled hole, which can easily lead to insufficient machining accuracy and affect the quality of product machining. Separate tools increase tooling costs and management difficulty, and frequent tool changes may introduce more errors, reducing the stability and reliability of machining. Utility Model Content
[0004] The purpose of this utility model is to provide a composite tool with convenient drilling tool replacement. By opening a positioning groove on the front end of the tool body, one end of the added drill bit is inserted into the positioning groove. Then, by setting a side fixing mechanism on the front end of the tool body, the position of the inserted drill bit can be fixed. Thus, the rotation of the tool body can simultaneously drive the drill bit to rotate, realizing an innovative composite tool, improving processing efficiency and optimizing coaxiality accuracy, while also reducing processing costs and enhancing processing stability and reliability, thereby solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a composite tool with easily replaceable drilling tools, comprising a tool body and a mounting base for mounting the tool body. The tool body includes a front-end tool body, a middle-end tool body, and an end-end tool body, which are arranged in sequence from left to right and integrally formed. A drill bit is mounted on the front-end tool body by means of a side fixing mechanism.
[0006] Preferably, a positioning groove is provided at the center of the front-end cutter body, one end of the drill bit is inserted into the positioning groove, and the other end of the drill bit extends outward.
[0007] Preferably, the side fixing mechanism includes a side pressure hole, which is formed on the surface of the front end of the cutter body, and the inner cavity of the side pressure hole is threaded with a positioning fastener that provides a fixing effect for the drill bit.
[0008] Preferably, the cross-sectional areas of the front-end blade, the middle blade, and the end blade increase sequentially from left to right, and one side of the end blade is arranged in an arc shape.
[0009] Preferably, the cutting edges on the front end blade, the middle end blade, and the end blade are all arranged in an axially symmetrical position.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] This utility model provides a composite tool with convenient drilling tool replacement. By opening a positioning groove on the front end of the tool body, one end of the added drill bit is inserted into the positioning groove. Then, by setting a side fixing mechanism on the front end of the tool body, the position of the inserted drill bit can be fixed. Thus, the rotation of the tool body can simultaneously drive the drill bit to rotate, realizing an innovative composite tool, improving processing efficiency and optimizing coaxiality accuracy, while also reducing processing costs and enhancing processing stability and reliability.
[0012] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the machining state of the composite tool structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the cutter body and drill bit structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the composite cutting tool structure of this utility model;
[0016] Figure 4 This is a schematic diagram of the drill bit structure of this utility model.
[0017] The following are the labels in the diagram: 1. Tool body; 11. Front end tool body; 12. Middle end tool body; 13. End end tool body; 2. Mounting base; 3. Side fixing mechanism; 31. Side pressure hole; 4. Drill bit; 5. Positioning groove. Detailed Implementation
[0018] 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.
[0019] This utility model provides, for example Figures 1-4 The invention illustrates a composite tool with easily replaceable drilling tools, comprising a tool body 1 and a mounting base 2 for mounting the tool body 1. The tool body 1 includes a front cutting edge 11, a middle cutting edge 12, and a rear cutting edge 13, which are integrally formed from left to right. A drill bit 4 is mounted on the front cutting edge 11 via a side fixing mechanism 3. A positioning groove 5 is provided at the center of the front cutting edge 11, and one end of the drill bit 4 is inserted into the positioning groove 5, while the other end of the drill bit 4 extends outward. By creating the positioning groove 5 on the front cutting edge 11 of the tool body 1, and then inserting one end of the drill bit 4 into the positioning groove 5, the side fixing mechanism 3 on the front cutting edge 11 can fix the position of the inserted drill bit 4. Thus, the rotation of the tool body 1 can simultaneously drive the drill bit 4 to rotate, realizing an innovative composite tool that improves processing efficiency and optimizes coaxiality accuracy, while also reducing processing costs and enhancing processing stability and reliability.
[0020] The side fixing mechanism 3 includes a side pressure hole 31, which is opened on the surface of the front end cutter body 11. The inner cavity of the side pressure hole 31 is threaded with a positioning fastener that provides a fixing effect for the drill bit 4. By opening the side pressure hole 31 on the front end cutter body 11 of the cutter body 1, the positioning fastener can be conveniently fixed to the position of the drill bit 4 from the side of the cutter body 1, thereby enhancing the stability of the installation between the drill bit 4 and the cutter body 1.
[0021] The cross-sectional areas of the front-end cutter body 11, the middle-end cutter body 12, and the end cutter body 13 increase sequentially from left to right. One side of the end cutter body 13 is set with an arc shape to facilitate the opening of the worm gear hole and the bottom drilling hole on the mechanical housing, while improving the coaxiality of the worm gear hole and the bottom drilling hole.
[0022] The cutting edges on the front cutting body 11, the middle cutting body 12, and the end cutting body 13 are all arranged in an axially symmetrical position in order to improve the coaxial accuracy of the worm gear hole and the bottom drilling position on the mechanical housing and ensure processing efficiency.
[0023] In practical use, a positioning groove 5 is first opened on the front end of the tool body 11 of the tool body 1. Then, one end of the added drill bit 4 is inserted into the positioning groove 5. Subsequently, a side fixing mechanism 3 is set on the front end of the tool body 11, and a side pressure hole 31 is opened on the front end of the tool body 1. In order to facilitate the positioning fastener to fix the position of the drill bit 4 from the side of the tool body 1, the position of the inserted drill bit 4 can be fixed, which enhances the stability of the installation between the drill bit 4 and the tool body 1. Thus, the rotation of the tool body 1 can simultaneously drive the drill bit 4 to rotate, realizing an innovative composite tool, improving processing efficiency and optimizing coaxiality accuracy, while also reducing processing costs and enhancing processing stability and reliability.
[0024] 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 composite tool for easy replacement of drilling tools, comprising a tool body (1) and a mounting base (2) for mounting the tool body (1), characterized in that: The main body of the cutting tool (1) includes a front cutting body (11), a middle cutting body (12) and an end cutting body (13). The front cutting body (11), the middle cutting body (12) and the end cutting body (13) are arranged in sequence from left to right and integrally formed. A drill bit (4) is installed on the front cutting body (11) by means of a side fixing mechanism (3).
2. The composite tool with easily replaceable drilling tools according to claim 1, characterized in that: A positioning groove (5) is provided at the center of the front-end cutter body (11), one end of the drill bit (4) is inserted into the positioning groove (5), and the other end of the drill bit (4) extends outward.
3. A composite tool with easily replaceable drilling tools according to claim 2, characterized in that: The side fixing mechanism (3) includes a side pressure hole (31), which is opened on the surface of the front end cutter body (11). The inner cavity of the side pressure hole (31) is threaded with a positioning fastener that provides a fixing effect for the drill bit (4).
4. A composite tool with easily replaceable drilling tools according to claim 3, characterized in that: The cross-sectional areas of the front end blade (11), the middle end blade (12) and the end blade (13) increase sequentially from left to right, and one side of the end blade (13) is set in an arc shape.
5. A composite tool with easily replaceable drilling tools according to claim 1, characterized in that: The cutting edges on the front end blade (11), the middle end blade (12), and the end blade (13) are all arranged in an axially symmetrical position.