Cutting tool

Abstract

The utility model relates to the technical field of cutting tools, and discloses a cutting tool which is characterized in that a mounting part for accommodating a blade is arranged at the end part of a tool rest, the mounting part extends along the tool rest to form a limiting part for limiting the blade, and more than two first screw holes are formed in the mounting part; the blade is provided with a second screw hole matched with the first screw hole, and the blade is connected and locked with the second screw hole in the mode that a screw penetrates through the first screw hole. Cutting parts are arranged at two ends of the blade; when the blade is installed on the tool rest, any cutting part is arranged in the limiting part to be limited. A double-screw-hole locking structure is adopted, the locking force is remarkably improved, installation is more stable and firmer, and the reliability and safety of the blade in the using process are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, and in particular to a cutting tool. Background Technology

[0002] In existing technologies, knife design typically focuses on functionality and ease of operation, but often falls short in terms of blade securing methods. Traditional blade securing methods mostly employ a single screw hole structure, which has significant limitations in tightening force. Due to insufficient tightening force, the blade is prone to loosening after installation, which not only affects the blade's performance but also shortens its lifespan.

[0003] The loosening problem mainly occurs because the single screw hole structure cannot provide sufficient fixing force to resist the various external forces exerted on the cutting tool during use. These external forces may come from impacts during cutting, vibrations, or wear after prolonged use, all of which can cause the cutting tool to gradually loosen, thereby affecting the cutting effect and the overall performance of the tool.

[0004] Therefore, improvements are needed. Utility Model Content

[0005] The technical problem solved by this utility model is to address the deficiencies in the prior art by providing a cutting tool to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a cutting tool, comprising: a tool holder, the end of which is provided with a mounting portion for accommodating a cutting blade, the mounting portion extending along the tool holder to form a limiting portion for limiting the cutting blade, the mounting portion having two or more first screw holes; a cutting blade, the cutting blade having a second screw hole adapted to the first screw hole, the cutting blade being connected and locked to the second screw hole by a screw passing through the first screw hole; cutting portions being provided at both ends of the cutting blade; wherein, when the cutting blade is mounted on the tool holder, any one of the cutting portions is placed within the limiting portion for limitation.

[0007] Furthermore, at the location of the first screw hole, there is one or more radially extending limiting grooves, the limiting grooves being recessed along the end face of the mounting portion; the mounting surface of the blade and the tool holder is provided with a limiting strip that mates with the limiting grooves, the limiting strips protruding from the mounting surface of the tool holder; wherein, when the blade is mounted on the tool holder, the limiting strips are embedded in the limiting grooves to enhance the structural strength of the tool.

[0008] Furthermore, the first screw hole position is provided with a recessed portion in the radial direction, and the blade is provided with a protrusion that mates with the recessed portion; when the blade is mounted on the tool holder, the protrusion is positioned in the recessed portion position, and there is a gap between the protrusion and the recessed portion.

[0009] Furthermore, the recess is circular in shape, and the protrusion is circular in shape.

[0010] Furthermore, the cross-section of the limiting groove is V-shaped, and the cross-section of the limiting strip is V-shaped.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] Enhanced locking force and stability: By adopting a double-threaded cross-embedded design, this invention significantly enhances the locking force of the blade. This design allows the blade to be more securely fixed to the tool holder after installation, effectively resisting impact forces, vibrations during cutting, and wear after prolonged use, thereby preventing the blade from loosening and extending the service life of the blade and the entire tool.

[0013] Improved cutting performance: Due to the more secure fixing of the cutting insert, the tool of this invention maintains higher stability and precision during cutting. This helps to improve cutting efficiency, reduce cutting errors, and ensure the consistency and stability of machining quality.

[0014] Enhanced structural strength: By incorporating a limiting groove and a limiting strip at the first screw hole location, along with the combined design of the recess and protrusion, this invention further enhances the structural strength of the cutting tool. These designs not only help prevent displacement and deformation of the blade during installation and use, but also improve the overall rigidity and durability of the tool.

[0015] Easy to install and maintain: Although this utility model features structural innovations, its installation and maintenance processes still maintain a certain degree of convenience. For example, the limiting groove and limiting strip structures also facilitate quick positioning and installation, reducing operational difficulty and time costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is an exploded structural diagram of the present invention.

[0018] Figure 3 This is a schematic diagram of the tool holder structure.

[0019] Figure 4 This is a schematic diagram of the blade's structure.

[0020] Reference numerals: 1. Tool holder; 2. Blade; 3. Mounting part; 4. Limiting part; 5. First screw hole; 6. Second screw hole; 7. Screw; 8. Cutting part; 9. Limiting groove; 10. Limiting strip; 11. Recess; 12. Protrusion. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Moreover, "above," "over," and "on top" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In view of the technical problems described in the background art, such as Figure 1-4As shown, a cutting tool is provided, including: a tool holder 1, the end of which is provided with a mounting portion 3 for accommodating a cutting blade 2, the mounting portion 3 extending along the tool holder 1 to form a limiting portion 4 for limiting the cutting blade 2, the mounting portion 3 having two or more first screw holes 5; a cutting blade 2, the cutting blade 2 having a second screw hole 6 adapted to the first screw hole 5, the cutting blade 2 being connected and locked to the second screw hole 6 by a screw 7 passing through the first screw hole 5; and cutting portions 8 at both ends of the cutting blade 2; wherein, when the cutting blade 2 is mounted on the tool holder 1, any one of the cutting portions 8 is placed within the limiting portion 4 for limitation.

[0024] In the above technical solution, a double-screw 7-hole structure is used for locking. The double-screw 7-hole structure is distributed in the fixing area of ​​the blade 2, typically located on both sides or symmetrically on the blade 2, to ensure even force distribution. During use, the two screw 7-holes are used to fix the blade 2 to the tool holder 1 using the screws 7. By adding one screw 7-hole, the locking force is significantly enhanced, making the blade 2 more stable after installation, better able to resist external forces, and reducing the possibility of loosening.

[0025] Compared to the traditional single-screw 7-hole design, the double-screw 7-hole structure significantly enhances the locking force, making the installation more stable and reliable, and effectively improving the reliability and safety of the blade 2 during use.

[0026] refer to Figure 3-4 As shown, one or more radially extending limiting grooves 9 are provided at the position of the first screw hole 5, and the limiting grooves 9 are recessed along the end face of the mounting part 3; the mounting surface of the blade 2 and the tool holder 1 is provided with a limiting strip 10 that cooperates with the limiting groove 9, and the limiting strip 10 protrudes from the mounting surface of the tool holder 1; wherein, when the blade 2 is mounted on the tool holder 1, the limiting strip 10 is embedded in the limiting groove 9 to enhance the structural strength of the tool.

[0027] In a further technical solution, to enhance the structural strength between the blade 2 and the tool holder 1, a limiting groove 9 and a limiting strip 10 are provided. The limiting groove 9 and the limiting strip 10 are V-shaped, but other shapes are also acceptable and not limited thereto. In use, the limiting strip 10 fits tightly against the corresponding limiting groove 9 through its shape, forming a stable contact surface. This fitting method achieves tight contact through shape matching, enhancing the stability between the blade 2 and the mounting part 3.

[0028] refer to Figure 3-4As shown, the first screw hole 5 has a recessed portion 11 arranged radially, and the blade 2 has a protrusion 12 that mates with the recessed portion 11. When the blade 2 is mounted on the tool holder 1, the protrusion 12 is positioned in the recessed portion, and there is a gap between the protrusion 12 and the recessed portion 11. The recessed portion 11 is circular, and the protrusion 12 is circular.

[0029] In use, the protrusion 12 of the protruding structure cooperates with the recess 11 on the tool holder 1 to achieve precise positioning of the blade 2. During implementation, when the protrusion 12 is placed in the recess 11, there is a gap between them, meaning the contact surface of the tool is where the limiting groove 9 and the limiting strip 10 are in contact. This enhances the overall strength of the blade 2, making it more robust.

[0030] Based on the above structural features, for the overall structure: the blade 2 is tightly fitted with the limiting groove 9 through multiple limiting strips 10 to form a stable contact surface; the cooperation between the protruding part 12 and the recess 11 in the middle is used for precise positioning and enhances the overall strength of the blade 2; the double screw 7-hole structure is fixed by screws 7, which further improves the installation stability of the blade 2.

[0031] Synergistic effect: The cooperation between the limiting groove 9 and the limiting strip 10, the cooperation between the protrusion 12 and the recess 11, and the cooperation between the double screw 7-hole structure together improve the installation stability, positioning accuracy and overall strength of the blade 2.

[0032] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A cutting tool, characterized in that, include: A tool holder, the end of which is provided with a mounting portion for accommodating a blade, the mounting portion extending along the tool holder to form a limiting portion for limiting the blade, the mounting portion being provided with two or more first screw holes; The blade has a second screw hole that matches the first screw hole. The blade is connected and locked to the second screw hole by a screw passing through the first screw hole. Both ends of the blade have cutting portions. When the blade is mounted on the tool holder, either cutting portion is positioned within the limiting portion.

2. The cutting tool according to claim 1, characterized in that: One or more radially extending limiting grooves are provided at the location of the first screw hole, and the limiting grooves are recessed along the end face of the mounting part; the mounting surface of the blade and the tool holder is provided with a limiting strip that cooperates with the limiting groove, and the limiting strip protrudes from the mounting surface of the tool holder; When the blade is mounted on the tool holder, the limiting strip is embedded in the limiting groove to enhance the structural strength of the tool.

3. The cutting tool according to claim 2, characterized in that: The first screw hole has a recessed portion in the radial direction, and the blade has a protrusion that mates with the recessed portion; when the blade is mounted on the tool holder, the protrusion is positioned in the recessed portion, and there is a gap between the protrusion and the recessed portion.

4. The cutting tool according to claim 3, characterized in that: The recess is circular in shape, and the protrusion is also circular in shape.

5. The cutting tool according to claim 2, characterized in that: The cross-section of the limiting groove is V-shaped, and the cross-section of the limiting strip is V-shaped.

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