A numerical control lathe tool piece for stainless steel finish machining

Abstract

The utility model discloses a numerical control lathe blade for stainless steel finish machining, aims at solving the problem of insufficient cutting stability, poor chip breaking effect and short service life of blade in prior art. The blade comprises a blade body, an assembly hole is arranged on the body, spherical convex points and C-shaped platforms are arranged on the periphery to enhance the installation stability, a cutting edge and a circular arc edge are arranged on the cutting edge, and a chip breaking table is arranged on the top. The periphery of the blade body is further provided with an edge with a ridge to prevent the cutting edge from breaking, and a mark convex point is arranged on the front surface to identify the front and back surfaces. The chip breaking table, the main convex table and the auxiliary convex table constitute a composite chip breaking system, which effectively controls the chip discharge. The cutting edge inclination angle is designed to be 15-20°, which reduces the cutting resistance and deformation and improves the machining efficiency. The blade improves the cutting stability, chip breaking performance and service life through the optimization of the structure design, is suitable for the finish machining of high-hardness stainless steel, reduces the machining cost and improves the machining quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of CNC lathe cutting tool technology, and in particular to a CNC lathe cutting tool for stainless steel finishing. Background Technology

[0002] Existing CNC lathe inserts used in stainless steel finishing applications generally suffer from insufficient cutting stability, poor chip breaking performance, and short insert life. Especially when machining high-hardness stainless steel, the material properties result in high cutting temperatures and intense vibrations, easily leading to cutting edge chipping, chip entanglement, and poor surface finish. This not only affects machining efficiency but also increases machining costs. Therefore, developing a stainless steel finishing insert with high strength, high stability, and excellent chip breaking performance has become an urgent problem to be solved. Utility Model Content

[0003] The purpose of this invention is to provide a CNC lathe cutting tool for finishing stainless steel, in order to solve the problems of poor stability, poor chip breaking effect and short tool life in the prior art.

[0004] This utility model is achieved by the following technical solution: a CNC lathe insert for stainless steel finishing, comprising an insert body, characterized in that the insert body is provided with an assembly hole, a plurality of spherical protrusions and a C-shaped platform are arranged around the insert body, the cutting edge of the insert body is provided with a cutting edge, the cutting edge is provided on both sides of the apex corner of the insert body, an arc edge is also provided between the cutting edges, and a chip breaker is provided above the cutting edge.

[0005] Furthermore, the blade body is provided with a cutting edge around its periphery to prevent the cutting edge from chipping during machining.

[0006] Furthermore, the chip breaker, together with the main boss and the secondary boss, constitutes a chip breaker system for controlling the chip discharge path. The chip breaker extends along the direction of the main boss, the secondary boss is disposed between the main bosses, and a C-shaped platform is disposed between the secondary boss and the main boss.

[0007] Furthermore, the blade has marking protrusions on its front side to identify the front and back of the blade.

[0008] Furthermore, the blade body is symmetrically arranged on both the front and back sides.

[0009] Furthermore, the C-shaped platform is arranged near each apex of the blade to enhance the installation stability of the blade, and the spherical protrusion is located below the C-shaped platform.

[0010] Furthermore, the cutting edge inclination angle is designed to be 15~20°.

[0011] The beneficial effects of the CNC lathe cutting tool for stainless steel finishing described in this utility model include: The reduced frictional resistance of stainless steel chips to the cutting tool and workpiece significantly reduces heat generation and cutting resistance, greatly minimizing cutting deformation and surface hardening, thus facilitating sharper cutting of stainless steel. The double-sided groove design allows for machining of ordinary stainless steel, with multiple cutting tips available, effectively reducing machining costs. Marking recesses help distinguish the front and back surfaces of the cutting tool, facilitating marking. The conical chip breaker effectively blocks stainless steel chips; for thicker chips, the main boss can break them, expanding the chip-breaking range and achieving effective and timely chip breaking at different levels. The arc-shaped recesses, combined with a large rake angle, provide space for chip collection and removal, promoting chip curling and preventing damage to the cutting tool or excessively long chips from entanglement in the workpiece, thereby avoiding impacts on part accuracy and machining. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. 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 the structures shown in these drawings without creative effort.

[0013] Figure 1 A schematic diagram of a CNC lathe cutting tool for finishing stainless steel; In the figure, 1-cutting edge, 2-main boss, 3-C-shaped platform, 4-assembly hole, 5-insert body, 6-marking protrusion, 7-circular arc edge, 8-chip breaker, 9-spherical protrusion, 10-secondary boss, 11-cutting edge. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0015] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0016] like Figure 1 As shown, a CNC lathe insert for finishing stainless steel includes an insert body 5. The insert body 5 has an overall triangular structure and a mounting hole 4 in the center. The mounting hole 4 is used to fix the insert and ensure that it has high positioning accuracy during the cutting process.

[0017] C-shaped platforms 3 are distributed on both the front and back surfaces around the mounting hole 4 on the blade body 5. Spherical protrusions 9 are located in the recesses of the C-shaped platforms 3, which are close to the platform around the hole. There are also secondary protrusions 10 located on the C-shaped platforms 3. The secondary protrusions 10 are located between the two main protrusions 2. The C-shaped platforms 3 are distributed near each apex of the blade, which enhances the stability of the blade during installation. The spherical protrusions 9 further improve the vibration resistance of the blade, especially in the high hardness machining of stainless steel, which significantly reduces the machining error caused by vibration.

[0018] The cutting edge of the insert is provided with a cutting edge 1, and an arc-shaped cutting edge 7 is provided in front of the cutting edge 1. The arc-shaped cutting edge 7 is designed for precision cutting tasks, especially suitable for machining high-gloss surfaces; the main cutting edge can efficiently remove excess material. A chip breaker 8 is arranged behind the cutting edge 1. Through cooperation with the main boss 2 and the secondary boss 10, a composite chip breaker structure is formed, which can adjust the flow direction of the chips according to the chip characteristics to prevent chips from wrapping around the insert.

[0019] A chip-collecting groove is provided between the two edges of the cutting edge 1, which can better collect chips. In combination with the rake angle of the cutting edge, it can better remove and roll chips. The conical chip breaking platform 8 is located above the chip-collecting groove and works with the main boss 2 to form better chip breaking. Secondly, the large cutting edge inclination angle of the cutting edge 1, combined with the rake angle and sharp cutting edge, is conducive to cutting the workpiece.

[0020] The blade body 5 is provided with a cutting edge 11 around its perimeter. The cutting edge 11 provides extra protection when cutting stainless steel, preventing the cutting edge 1 from chipping due to excessive sharpness or machining hard materials, while also increasing the service life of the blade. In addition, marking protrusions 6 are arranged on the front of the blade for quick identification of the front and back of the blade, making it easier for workers to avoid incorrect operation during installation.

[0021] Cutting edge 1 adopts a cutting edge inclination angle of 15~20°, which reduces the frictional resistance of stainless steel chips to the cutting tool and workpiece, greatly reduces heat generation and cutting resistance, significantly reduces cutting deformation and surface hardening, and is more conducive to sharp cutting of stainless steel.

[0022] The above embodiments describe the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Modifications and variations made by those skilled in the art without departing from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A CNC lathe cutting tool for finishing stainless steel, comprising a tool body (5), characterized in that, The blade body (5) is provided with an assembly hole (4), and multiple spherical protrusions (9) and C-shaped platforms (3) are arranged around the blade body (5). The cutting edge of the blade body (5) is provided with a cutting edge (1). The cutting edge (1) is located on both sides of the top corner of the blade body (5). A circular arc edge (7) is also provided between the cutting edges (1). A chip breaker (8) is provided above the cutting edge (1).

2. The CNC lathe cutting tool for stainless steel finishing according to claim 1, characterized in that, The blade body (5) is provided with a cutting edge (11) around its periphery to prevent the cutting edge (1) from breaking during processing.

3. The CNC lathe cutting tool for finishing stainless steel according to claim 1, characterized in that, The chip breaking platform (8), together with the main boss (2) and the secondary boss (10), constitutes a chip breaking system for controlling the chip discharge path. The chip breaking platform (8) extends along the direction of the main boss (2), and the secondary boss (10) is arranged between the main boss (2). A C-shaped platform (3) is arranged between the secondary boss (10) and the main boss (2).

4. The CNC lathe cutting tool for finishing stainless steel according to claim 1, characterized in that, The blade has marking protrusions (6) on its front side to identify the front and back of the blade.

5. A CNC lathe cutting tool for finishing stainless steel according to claim 1, characterized in that, The blade body (5) is symmetrically arranged on both the front and back sides.

6. A CNC lathe cutting tool for finishing stainless steel according to claim 1, characterized in that, The C-shaped platform (3) is arranged near each apex of the blade to enhance the installation stability of the blade, and the spherical protrusion (9) is located below the C-shaped platform (3).

7. A CNC lathe cutting tool for finishing stainless steel according to claim 1, characterized in that, The cutting edge (1) has an inclination angle of 15~20°.

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