Metal processing cutter

Abstract

The utility model provides a metal processing cutter, which relates to the technical field of cutters, and comprises a cutter body and a blade, the cutter body is provided with a blade mounting position, the blade mounting position comprises a V-shaped positioning surface and a positioning groove, the blade is provided with a V-shaped contact surface and a contact bulge, the V-shaped contact surface is in contact fit with the V-shaped positioning surface, and the blade is axially positioned. The blade is subjected to axial and radial high-precision positioning through the double-V-shaped positioning structure, the installation precision of the blade on the cutter body is guaranteed, and the problems that due to the fact that the installation position of the blade is not accurate, the machining effect is poor and the service life is short in the using process of the cutter are solved. And in addition, the chip rolling groove structure and the negative chamfering structure are prefabricated and formed on the blade, subsequent machining is not needed, the cost is reduced, and the consistency precision is high.

Description

Technical Field

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

[0002] Traditional metalworking tools typically use a welding connection between the tool body and the insert, making it difficult to achieve a precise relative position between them. This results in poor machining performance and a short tool life when using such tools for subsequent metalworking processes. Furthermore, the welding process followed by machining makes it difficult to achieve high machining consistency when machining structures such as chip grooves and negative chamfers on the insert. This, combined with the low insert installation accuracy, further reduces the machining consistency. This application addresses these shortcomings. Utility Model Content

[0003] The purpose of this invention is to provide a metalworking tool that can achieve high-precision positioning of the insert in the radial and axial directions, thus solving the problem of low tool accuracy caused by the deviation in the relative position between the insert and the tool body.

[0004] To address the aforementioned problems, this utility model provides a metalworking tool, comprising a tool body and an insert. The tool body has an insert mounting position, which includes a V-shaped positioning surface and a positioning groove. The insert has a V-shaped contact surface and a contact protrusion. The V-shaped contact surface engages with the V-shaped positioning surface to axially position the insert, and the contact protrusion is inserted into the positioning groove to radially position the insert. This achieves high-precision axial and radial positioning of the insert, ensuring insert mounting accuracy and guaranteeing the tool's machining performance.

[0005] According to one embodiment of the present invention, the positioning groove has a V-shaped bottom surface, and the contact protrusion has a V-shaped mating surface for contacting the V-shaped bottom surface. The V-shaped mating contact can further improve the positioning accuracy.

[0006] According to one embodiment of the present invention, a chip groove structure is provided on the front cutting surface of the blade to control the curling shape and curling size of the chips.

[0007] According to one embodiment of the present invention, the cutting edge of the blade is provided with a negative chamfer structure to control the size of the built-up edge and reduce edge wear.

[0008] According to one embodiment of the present invention, the chip groove structure and the negative chamfer structure are pre-formed on the blade, eliminating the need for subsequent processing, reducing costs and achieving high consistency and precision.

[0009] According to one embodiment of the present invention, the blade body is provided with a chip removal groove.

[0010] According to one embodiment of the present invention, the blade is disposed in the chip removal groove, and when the blade is working, the cut chips can be discharged along the spiral chip removal groove.

[0011] According to one embodiment of the present invention, the blades are provided in several groups, and the number of chip removal grooves is the same as the number of blades.

[0012] According to one embodiment of the present invention, the blade body is connected to the handle, and the handle is used to connect the blade to the device.

[0013] According to one embodiment of the present invention, the blade body and the blade are connected by welding, such as brazing.

[0014] The beneficial effects of this utility model are that by using a double V-shaped positioning structure to perform high-precision axial and radial positioning of the blade, the installation accuracy of the blade on the tool body is guaranteed, avoiding the problems of poor processing effect and short service life caused by inaccurate blade installation position. Furthermore, by pre-forming the chip groove structure and negative chamfer structure on the blade, no subsequent processing is required, which reduces costs and achieves high consistency and accuracy. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the overall structure of a metalworking tool.

[0017] Figure 2 This is a schematic diagram of the blade's structure;

[0018] Figure 3 This is a schematic diagram of the structure on one side of the blade;

[0019] Figure 4 This is a schematic diagram of the structure on the other side of the blade. Detailed Implementation

[0020] The following description is only intended to disclose the present invention so that those skilled in the art can implement it. The embodiments in the following description are merely examples, and those skilled in the art will conceive of other obvious modifications. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other solutions that do not depart from the spirit and scope of the present invention.

[0021] A metalworking tool, such as Figure 1 It includes a handle 1, a blade 2, and a blade 3.

[0022] The shank 1 is used to connect the cutting tool to the equipment.

[0023] The outer circumference of the blade body 2 is provided with a number of chip removal grooves 4. In this embodiment, four sets are provided. The chip removal grooves 4 are provided with blade mounting positions 23 for mounting blades 3. When the blades 3 are working, the chips cut off can be discharged along the spiral chip removal grooves 4. Preferably, the number of chip removal grooves 4 is the same as the number of blades 3.

[0024] like Figure 2 The blade mounting position 23 includes a V-shaped positioning surface 21 and a positioning groove 22, the positioning groove 22 having a V-shaped bottom surface, such as... Figure 3 , Figure 4 The blade 3 is provided with a V-shaped contact surface 31 and a contact protrusion 32. The contact protrusion 32 has a V-shaped mating surface for contacting the bottom surface of the V-shape. The V-shaped contact surface 31 is located at the end face of the blade 3, and the contact protrusion 32 is located at the side face of the blade 3. The V-shaped contact surface 31 and the V-shaped positioning surface 21 are in contact and fit together, and their shapes match to perform axial positioning of the blade 3. The contact protrusion 32 is inserted into the positioning groove 22, and their shapes match to perform radial positioning of the blade 3. This completes the axial and radial high-precision positioning of the blade 3, ensuring the installation accuracy of the blade 3 and ensuring the processing effect of the tool.

[0025] Furthermore, the blade body 2 and the blade 3 can be connected by welding, such as brazing, or by bolts.

[0026] By utilizing a double V-shaped positioning structure to perform high-precision axial and radial positioning of the blade 3, the installation accuracy of the blade 3 on the tool body 2 is guaranteed, avoiding problems such as poor machining effect and short service life during tool use due to inaccurate installation position of the blade 3.

[0027] like Figure 3 The blade 3 has a chip groove structure 34 on its front face to control the curling shape and size of the chips. The blade 3 has a negative chamfer structure on its cutting edge 33 to control the size of the built-up edge and reduce edge wear.

[0028] Preferably, in this embodiment, the traditional post-welding processing technology is improved to a welding forming process, and the chip groove structure 34 and the negative chamfer structure are pre-formed on the blade 3, eliminating the need for subsequent processing, reducing costs and achieving higher consistency accuracy. In other embodiments, subsequent processing can also be used. Based on the high blade installation accuracy of this solution, the consistency accuracy of subsequent processing can be improved.

[0029] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations and modifications.

Claims

1. A metalworking tool, characterized in that: The device includes a blade body (2) and a blade (3). The blade body (2) has a blade mounting position (23), which includes a V-shaped positioning surface (21) and a positioning groove (22). The blade (3) has a V-shaped contact surface (31) and a contact protrusion (32). The V-shaped contact surface (31) is located at the end face of the blade (3), and the contact protrusion (32) is located at the side face of the blade (3). The V-shaped contact surface (31) contacts and engages with the V-shaped positioning surface (21) to axially position the blade (3). The contact protrusion (32) is inserted into the positioning groove (22) to radially position the blade (3); the positioning groove (22) has a V-shaped bottom surface, and the contact protrusion (32) has a V-shaped mating surface for contacting the V-shaped bottom surface; the blade (3) has a chip groove structure (34) at the front cutting face; the blade (3) has a negative chamfer structure at the cutting edge (33); the chip groove structure (34) and the negative chamfer structure are pre-formed on the blade (3); the blade body (2) and the blade (3) are connected by welding.

2. The metalworking tool according to claim 1, characterized in that: The blade body (2) is provided with a chip removal groove (4), and the blade (3) is disposed in the chip removal groove (4).

3. The metalworking tool according to claim 2, characterized in that: The blades (3) are provided in several groups, and the number of chip removal grooves (4) is the same as the number of blades (3).

4. The metalworking tool according to claim 1 or 3, characterized in that: The blade body (2) is connected to the handle (1).

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