Hard alloy cutter for high-speed cutting

By designing a limiting cylinder, limiting rod, magnet, and positioning ball inside the tool housing, the problems of cumbersome disassembly and easy collision of carbide tools are solved, enabling quick replacement, stable connection, and cleanliness, thereby improving work efficiency and safety.

CN223960550UActive Publication Date: 2026-03-03MAANSHAN ZHONGJIN SUPERHARD MATERIAL TECH DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Existing carbide cutting tools are cumbersome to disassemble and install, and are prone to collision with the workpiece when cleaning up waste after cutting, which can cause injury to the user. In addition, protective devices are easy to lose, affecting work efficiency and safety.

Method used

A carbide cutting tool consisting of a cutter shell and a cutting tool body has been designed. It achieves quick replacement and stable connection through structures such as a limiting cylinder, a limiting rod, a magnet, and a positioning ball. Combined with brush cleaning, it ensures the stability and cleanliness of the cutting tool.

Benefits of technology

It enables quick replacement of the tool body, improves work efficiency, reduces the risk of accidental injury, ensures a stable connection, extends service life and keeps the tool clean, and enhances the stability and safety of the cutting process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223960550U_ABST
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Abstract

The utility model discloses a hard alloy cutter for high-speed cutting, and belongs to the technical field of alloy cutters. A hard alloy cutter for high-speed cutting comprises a cutter shell and a cutter body, an opening is formed in the lower end of the cutter shell, a mounting block is movably connected into the cutter shell and connected with the cutter body, symmetrical limiting cylinders are arranged on the side wall, close to the lower end, of the cutter shell, limiting rods are movably connected into the limiting cylinders, and the limiting rods are used for positioning the mounting block. According to the design, the cutter body is allowed to be replaced quickly, simply and conveniently, the working efficiency is improved, the cutter can be retracted into the cutter shell when the cutter is not used, the risk of accidental injury is reduced, the cutter shell is connected with the cutter body, the cutter shell is prevented from being lost, and through the design of the magnet, the iron sheet, the positioning ball and the sliding groove, the cutter body can be replaced conveniently. And more stable connection between the cutter body and the mounting block is ensured, and the stability in the cutting process is improved.
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Description

Technical Field

[0001] This utility model relates to the field of alloy cutting tool technology, and more specifically, to a cemented carbide cutting tool for high-speed cutting. Background Technology

[0002] Most existing carbide cutting tools are installed using bolts, making disassembly cumbersome and time-consuming. Furthermore, after cutting a workpiece, the surrounding waste needs to be cleaned up and the workpiece measured. However, the carbide cutting tool is exposed to the air and close to the workpiece, making it easy for the user to collide with the tool during measurement, potentially causing injury.

[0003] Chinese patent CN217143266U discloses a high-speed cutting carbide tool. This high-speed cutting carbide tool has a protective structure that can cooperate with the mounting block and the carbide tool. During cleaning or measurement, the protective mechanism can protect the carbide tool and prevent it from causing injury to the user. However, this protective mechanism requires repeated disassembly and installation, increasing the workload. Furthermore, the protective device separates from the carbide tool during operation, making it prone to loss. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a high-speed cutting carbide tool to solve the above-mentioned deficiencies.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A high-speed cutting carbide tool includes a tool case and a tool body. The lower end of the tool case has an opening, and a mounting block is movably connected inside the tool case. The lower end of the mounting block can penetrate the opening and connect to the tool body. The mounting block is connected to the tool body and controls the tool body to follow the tool case when working. At the same time, the mounting block adjusts the position of the tool body inside the tool case. Symmetrical limiting cylinders are provided on the side wall of the tool case near the lower end. Limiting rods are movably connected inside the limiting cylinders, and the limiting rods position the mounting block.

[0007] Preferably, the limiting rod passes through the limiting cylinder, and a first handle is provided at the position where the limiting rod is placed outside the limiting cylinder. A positioning block is fixedly connected to one end of the limiting rod, and a first spring is fixedly connected to the position where the limiting rod is placed inside the limiting cylinder. One end of the first spring abuts against the positioning block, and the other end of the first spring abuts against the inner wall of the limiting cylinder.

[0008] Preferably, the mounting block has a positioning groove that matches the positioning block.

[0009] Preferably, the lower end of the mounting block is fixedly connected to an extension rod, and a magnet is provided around the perimeter of the extension rod on the mounting block. The extension rod is inserted into the tool body.

[0010] Preferably, the upper end of the tool body is provided with an iron sheet. After the extension rod is inserted into the tool body, the magnet attracts the iron sheet. The tool body is provided with a slot, and a positioning ball is provided in the slot.

[0011] Preferably, the extension rod has a groove that matches the positioning ball, and the groove has an inverted L-shaped structure.

[0012] Preferably, a second spring is provided on the lower surface of the mounting block, the lower end of the second spring is connected to the opening, and second handles are symmetrically provided on both sides of the upper end of the mounting block. The second handles penetrate through the blade housing, and the mounting block is controlled to move downward through the second handles, thereby driving the blade body to extend out of the blade housing.

[0013] Preferably, a brush is engaged at the inner ring of the opening, and the brush can clean the tool body when the tool body extends into or out of the tool shell.

[0014] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0015] This utility model provides a high-speed cutting carbide tool with a design that allows for quick and easy replacement of the tool body, improving work efficiency. When not in use, the tool can be retracted into the tool case, reducing the risk of accidental injury. The tool case is connected to the tool body to prevent loss of the tool case. The design of the magnet and iron plate, positioning ball and slide groove ensures a more stable connection between the tool body and the mounting block, improving stability during the cutting process. Different tool bodies can be used. The brush design helps to keep the tool and equipment clean, extending service life and maintaining good working condition. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the high-speed cutting carbide tool of this utility model;

[0017] Figure 2 This is a diagram showing the working state of the cemented carbide cutting tool of this utility model.

[0018] Figure 3 This is a diagram showing the internal structure of the blade casing of this utility model;

[0019] Figure 4 This is a cross-sectional view of the tool body of this utility model;

[0020] Figure 5 This is a diagram showing the state of the tool body protected by the tool shell according to this utility model.

[0021] In the diagram: 1. Blade housing; 11. Opening; 12. Mounting block; 121. Positioning groove; 122. Extension rod; 1221. Slide groove; 123. Second spring; 124. Second handle; 13. Limiting cylinder; 14. Limiting rod; 141. First handle; 142. Positioning block; 143. First spring; 15. Brush; 2. Blade body; 21. Iron sheet; 22. Slot; 221. Positioning ball. Detailed Implementation

[0022] 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.

[0023] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0024] Combination Figures 1-5 This utility model discloses a high-speed cutting carbide tool, including a tool housing 1, which is connected to a drive structure to control the overall rotation of the carbide tool for cutting. The lower end of the tool housing 1 is provided with an opening 11, and a mounting block 12 is movably connected inside the tool housing 1. The lower end of the mounting block 12 can pass through the opening 11 and connect to the tool body 2. The mounting block 12 is connected to the tool body 2 and controls the tool body 2 to follow the tool housing 1 to work. At the same time, the mounting block 12 adjusts the position of the tool body 2 inside the tool housing 1.

[0025] Specifically, the mounting block 12 can move up and down inside the blade housing 1. Symmetrical limiting cylinders 13 are provided on the side wall of the blade housing 1 near the lower end. A limiting rod 14 is movably connected inside the limiting cylinder 13 and passes through the limiting cylinder 13. A first handle 141 is provided at the position of the limiting rod 14 outside the limiting cylinder 13. A positioning block 142 is fixedly connected to one end of the limiting rod 14. A first spring 143 is fixedly connected to the position of the limiting rod 14 inside the limiting cylinder 13. One end of the first spring 143 abuts against the positioning block 142, and the other end of the first spring 143 abuts against the inner wall of the limiting cylinder 13. Under the action of the first spring 143, the positioning block 142 is pushed to move into the blade housing 1. The first handle 141 controls the positioning block 142 to move outward from the blade housing 1. When the positioning block 142 engages with the mounting block 12, the position of the mounting block 12 is fixed. Therefore, a positioning groove 121 matching the positioning block 142 is provided on the mounting block 12.

[0026] In addition, an extension rod 122 is fixedly connected to the lower end of the mounting block 12. The extension rod 122 is inserted into the tool body 2, and an iron plate 21 is provided at the upper end of the tool body 2. A magnet is provided around the extension rod 12 on the mounting block 12. After the extension rod 12 is inserted into the tool body 2, the magnet attracts the iron plate 21, improving the firmness of the connection between the extension rod 122 and the tool body 2. Correspondingly, a slot 22 is provided at the upper end of the tool body 2, and a positioning ball 221 is provided in the slot 22. A groove 1221 is provided to match the positioning ball 221. The groove 1221 has an inverted L-shaped structure. After the positioning ball 221 is inserted into the groove 1221, the positioning ball 221 is pushed to move upward until it moves to the top of the groove 1221. Then the positioning ball 221 is moved laterally along the top of the groove 1221. Under the action of the magnet and the iron plate 21, the tool body 2 cannot move in the vertical direction. When rotating, the tool body 2 rotates in one direction to prevent the positioning ball 221 from falling out of the groove 1221.

[0027] A second spring 123 is provided on the lower surface of the mounting block 12. The lower end of the second spring 123 is connected to the opening 11. When installing or using the tool body 2, the mounting block 12 is moved down to the position fixed with the positioning block 142, the extension rod 122 extends out of the opening 11, and the second spring 123 is compressed. When it is necessary to protect the tool body 2, the positioning block 142 is pulled out from the positioning groove 121, and the mounting block 12 moves up under the action of the second spring 123, causing the tool body 2 to retract into the tool shell 1. The upper end of the mounting block 12 is symmetrically provided with second handles 124 on both sides. The second handles 124 penetrate the tool shell 1. Through the second handles 124, the mounting block 12 is controlled to move down, causing the tool body 2 to extend out of the tool shell 1.

[0028] A brush 15 is engaged at the inner ring of the opening 11. When the tool body 2 extends into and out of the tool shell 1, the brush 15 can clean the tool body 2 and prevent debris from entering the tool shell 1.

[0029] Working process: By operating the second handle 124, the mounting block 12 moves downward against the elastic force of the second spring 123, the extension rod 122 extends out of the opening 11, and the positioning block 142 automatically engages with the positioning groove 121 on the mounting block 12 under the action of the first spring 143, fixing the position of the mounting block 12. The tool body 2 is matched and connected with the sliding groove 1221 on the extension rod 122 through the slot 22 and positioning ball 221 at its upper end, and the connection is further strengthened by using a magnet to attract the iron piece 21. The tool shell 1 is connected to the drive structure, driving the entire carbide tool to rotate and cut. When it is necessary to protect the tool or to stop using it, pull the first handle 141 to make the positioning block 142 disengage from the positioning groove 121. The mounting block 12 moves upward under the action of the second spring 123, retracting the tool body 2 into the tool shell 1 to prevent damage. When the tool body 2 extends into and out of the tool shell 1, the brush 15 in the opening 11 automatically cleans the debris on the surface of the tool to prevent impurities from entering the interior of the tool shell 1.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] 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.

Claims

1. A high-speed cutting carbide tool, comprising a tool shell (1) and a tool body (2), characterized in that: The lower end of the blade shell (1) is provided with an opening (11). An installation block (12) is movably connected inside the blade shell (1). The installation block (12) is connected to the blade body (2). A symmetrical limiting cylinder (13) is provided on the side wall of the blade shell (1) near the lower end. A limiting rod (14) is movably connected inside the limiting cylinder (13). The limiting rod (14) positions the installation block (12).

2. The high-speed cutting carbide tool according to claim 1, characterized in that: The limiting rod (14) passes through the limiting cylinder (13), and a first handle (141) is provided at the position of the limiting rod (14) outside the limiting cylinder (13). A positioning block (142) is fixedly connected to one end of the limiting rod (14), and a first spring (143) is fixedly connected at the position of the limiting rod (14) inside the limiting cylinder (13).

3. The high-speed cutting carbide tool according to claim 2, characterized in that: The mounting block (12) is provided with a positioning groove (121) that matches the positioning block (142).

4. The high-speed cutting carbide tool according to claim 1, characterized in that: An extension rod (122) is fixedly connected to the lower end of the mounting block (12). A magnet is provided around the extension rod (122) of the mounting block (12). The extension rod (122) is inserted into the tool body (2).

5. The high-speed cutting carbide tool according to claim 4, characterized in that: The upper end of the cutter body (2) is provided with an iron plate (21), and the cutter body (2) is provided with a slot (22), and a positioning ball (221) is provided in the slot (22).

6. The high-speed cutting carbide tool according to claim 5, characterized in that: The extension rod (122) is provided with a groove (1221) that matches the positioning ball (221), and the groove (1221) has an inverted L-shaped structure.

7. The high-speed cutting carbide tool according to claim 1, characterized in that: The lower surface of the mounting block (12) is provided with a second spring (123), the lower end of the second spring (123) is connected to the opening (11), and the upper end of the mounting block (12) is symmetrically provided with second handles (124) on both sides, the second handles (124) penetrating the blade shell (1).

8. The high-speed cutting carbide tool according to claim 1, characterized in that: A brush (15) is engaged at the inner circle of the opening (11).

Citation Information

Patent Citations

  • Hard alloy cutter for high-speed cutting

    CN217143266U