A chipless cutting knife

Abstract

The utility model discloses a kind of chipless cutting-off knives, including handle and tool bit, the front end side of tool bit and handle is fixedly connected, the handle front end is inclined plane structure, and it is inclined to the side of tool bit, the tool bit is sheet structure, the middle part of the side of tool bit is provided with protrusion along tool bit extension direction, the tool bit is provided with the cutting-off portion of V type structure along protrusion outer edge, the cutting-off portion is set to inclined plane towards protrusion. The utility model provides a kind of chipless cutting-off knives, cutting-off is used when lathe machining, does not produce material scrap accumulation when cutting-off, incision surface is smooth.

Description

Technical Field

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

[0002] In current lathe machining processes, different cutting tools are used to cut workpieces depending on the material. For non-metallic materials such as rubber and silicone, diamond cutting tools are usually used. However, because rubber or silicone are soft and elastic materials, they are prone to extrusion of the cut surface during cutting, resulting in burrs, tool marks, and other defects on the cut surface, making it rough and requiring secondary processing. Utility Model Content

[0003] The purpose of this utility model is to provide a chipless cutting tool for cutting during lathe machining, which does not produce chip accumulation during cutting and produces a smooth cut surface.

[0004] The technical solution adopted by the chipless cutting knife disclosed in this utility model is: A chip-free cutting knife includes a handle and a cutting head. The cutting head is fixedly connected to one front end of the handle. The front end of the handle has a beveled structure and is inclined toward one side of the cutting head. The cutting head has a sheet-like structure. A protrusion is provided in the middle of one side of the cutting head along the extension direction of the cutting head. A V-shaped cutting portion is provided along the outer edge of the protrusion of the cutting head. The cutting portion is beveled toward the protrusion.

[0005] As a preferred embodiment, the protrusion extends to the middle of the handle, and the cutting portions on both sides of the front end of the handle are also arranged with a beveled structure.

[0006] As a preferred embodiment, the cutting head and the shank are fixedly connected by brazing, and the cutting head is made of diamond material.

[0007] As a preferred embodiment, the connection and fixing point between the handle and the blade head is arranged in an arc shape.

[0008] As a preferred embodiment, the side of the cutter head away from the protrusion is located on the same horizontal plane as the surface of the cutter handle.

[0009] As a preferred embodiment, the tool holder has a rectangular cross-section.

[0010] The beneficial effects of the chipless cutting tool disclosed in this utility model are as follows: the tool is fixed on the lathe by the tool holder, and the workpiece is clamped and fixed on the spindle. During the cutting process, the moving mechanism drives the tool to feed towards the workpiece for cutting. The front end of the tool head contacts the workpiece, and the convex side of the tool head faces the part of the workpiece to be cut. Thus, during the cutting process, the tool head is continuously inserted into the workpiece, and the convex side pushes the workpiece to be cut outward. At the same time, the cut chips are discharged along the inclined surface of the cutting part to avoid accumulation at the cutting point, which would cause the cutting to be unsmooth and affect the cutting effect. The front end of the tool holder is also an inclined structure, which also plays a role in chip removal and guidance, making the cut surface smooth. Moreover, the inclined structure better adapts to the plate-like structure of the tool head. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a chipless cutting knife according to this utility model.

[0012] Figure 2 This is a top view of a chip-free cutting tool according to this utility model.

[0013] Figure 3 This is a side view of a chip-free cutting knife according to this utility model. Detailed Implementation

[0014] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings: Please refer to Figures 1 to 3 A chip-free cutting knife includes a handle 10 and a cutting head 20. The cutting head 20 is fixedly connected to one side of the front end of the handle 10. The front end of the handle 10 has a beveled structure and is inclined toward one side of the cutting head 20. The cutting head 20 has a sheet-like structure. A protrusion 21 is provided in the middle of one side of the cutting head 20 along the extension direction of the cutting head 20. A U-shaped cutting part 22 is provided along the outer edge of the protrusion 21 of the cutting head 20. The cutting part 22 is beveled toward the protrusion 21.

[0015] The cutting tool is fixed on the lathe by the tool holder 10, and the workpiece is clamped and fixed on the spindle. During the cutting process, the moving mechanism drives the cutting tool to feed towards the workpiece for cutting. The front end of the cutting head 20 contacts the workpiece, and the protrusion 21 side of the cutting head 20 faces the part of the workpiece to be cut. Thus, during the cutting process, the cutting head 20 is continuously inserted into the workpiece, and the protrusion 21 pushes the workpiece to be cut outward. At the same time, the cut chips are discharged along the inclined surface of the cutting part 22 to avoid accumulation at the cutting point, which would cause the cutting to be unsmooth and affect the cutting effect. The front end of the tool holder 10 is also an inclined structure, which also plays the role of chip guide, making the cut surface smooth. The inclined structure is also better adapted to the plate-like structure of the cutting head 20.

[0016] Furthermore, the protrusion 21 in the middle of the blade 20 can also strengthen the blade 20, and the outer cutting part 22 maintains a sheet-like structure, which has good sharpness and is convenient for cutting.

[0017] In the above scheme, the protrusion 21 extends to the middle of the handle 10, and the cutting part 22 on both sides of the front end of the handle 10 is also set with a bevel structure. In conjunction with the cutting part 22 of the cutter head 20, the entire bevel structure extends to the front end of the handle 10, forming an extended V-shaped structure. The material chips during cutting are discharged along the bevels on both sides of the protrusion 21, and when cutting to a deeper position, they can also be discharged using the bevels of the handle 10.

[0018] The cutting head 20 and the tool holder 10 are fixedly connected by brazing, thereby forming a dense, uniform, and controllable alloy transition layer on the joint surface, which improves the connection strength between the cutting head 20 and the tool holder 10. At the same time, the cutting head 20 is made of diamond material, which can better cut non-metallic workpieces. The connection and fixing point between the tool holder 10 and the cutting head 20 is set in an arc shape, which can better transition the tool holder 10 and the cutting head 20.

[0019] The side of the cutter head 20 away from the protrusion 21 is on the same horizontal plane as the surface of the shank 10. When the cutter head 20 is cutting, the side of the cutter head 20 away from the protrusion 21 is brought into contact with the cutting surface of the workpiece to ensure that its surface remains flat and smooth along the side of the cutter head 20 and the shank 10 during the cutting process. Excess material is cut off and removed through the side of the protrusion 21 of the cutter head 20.

[0020] The tool holder 10 has a rectangular cross-section, which makes it easy to fix on the moving mechanism and avoids rotation or sliding.

[0021] This utility model provides a chipless cutting tool. The tool is fixed on a lathe by a tool holder, and the workpiece is clamped and fixed on the spindle. During the cutting process, the moving mechanism drives the tool to feed towards the workpiece for cutting. The front end of the tool head contacts the workpiece, and the convex side of the tool head faces the part of the workpiece to be cut. Thus, during the cutting process, the tool head continuously inserts into the workpiece, and the convex side squeezes the workpiece to be cut outward. At the same time, the cut chips are discharged along the inclined surface of the cutting part to avoid accumulation at the cutting point, which would cause uneven cutting and affect the cutting effect. The front end of the tool holder also has an inclined structure, which also plays a role in chip removal and guidance, making the cut surface smooth. The inclined structure also better adapts to the plate-like structure of the tool head.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A chipless cutting knife characterized by, The tool includes a handle and a blade. The blade is fixedly connected to one front end of the handle. The front end of the handle has a beveled structure and is inclined toward one side of the blade. The blade is a sheet-like structure. A protrusion is provided in the middle of one side of the blade along the extension direction of the blade. A V-shaped cutting part is provided along the outer edge of the protrusion of the blade. The cutting part is beveled toward the protrusion.

2. A chipless cutting tool according to claim 1, characterized in that The protrusion extends to the middle of the handle, and the cutting portions on both sides of the front end of the handle are also arranged with a beveled structure.

3. A chipless cutting tool according to claim 1, characterized in that The cutting head and the handle are fixedly connected by brazing, and the cutting head is made of diamond.

4. A chipless cutting tool according to claim 3, characterized in that The connection and fixing point between the handle and the blade head is set in an arc shape.

5. A chipless cutting tool according to claim 4, characterized in that The side of the blade tip away from the protrusion is on the same horizontal plane as the surface of the handle.

6. A chipless cutting tool according to claim 1, characterized in that The tool holder has a rectangular cross-section.

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