Integral hard alloy double-edge T-shaped cutter
By designing a special structure and angle for an integral carbide double-edged T-shaped cutter, the problems of cutting performance and burr residue in the high-precision plastic product processing of existing tools have been solved, achieving efficient processing and burr-free forming.
Patent Information
- Application Number
- CN202520671506.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-10
AI Technical Summary
Existing cutting tools struggle to maintain good cutting performance at high speeds when machining high-precision plastic products, and burrs often remain.
A monolithic carbide double-edged T-shaped cutter is designed, employing a special T-shaped structure and unique tool angles, including cutting angles of 28° and 0°, peripheral clearance angles of 15° and 30°, and front tooth angles of 8° and 25°. Combined with a helical cutting edge and chip flutes, it improves cutting efficiency and reduces burr residue.
It enables efficient processing and burr-free molding of high-precision plastic products, improving processing efficiency and ensuring appearance quality.
Smart Images
Figure CN223947972U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to 3C product processing field, concretely relates to a whole type hard alloy double edge T type knife. BACKGROUND
[0002] In 3C electronic industry, high-precision plastic product processing tool plays an indispensable role. This kind of tool is mainly used for the processing and manufacturing of 3C electronic plastic products, such as the forming and finishing of plastic parts such as mobile phone shell, tablet computer key, earphone, etc.
[0003] 3C electronic industry has the characteristics of high precision, complex structure and strict appearance requirements. In view of these characteristics, the tool usually adopts advanced grinding technology, the precision can reach micron level, which can accurately cut and shape plastic materials, and meet the processing needs of fine structure of products.
[0004] It is also necessary to maintain good cutting performance under high speed operation and reduce the deformation risk of plastic products in the processing process.
[0005] Therefore, it is necessary to develop a whole type hard alloy double edge T type knife, which is specially developed for plastic products, adopts special T type design, and the arc feature design of the blade edge can make the product be processed once, greatly improving the processing efficiency; The unique tool angle design can make the product be processed without burr, and the appearance quality is guaranteed. CONTENT OF THE UTILITY MODEL
[0006] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a whole type hard alloy double edge T type knife. The processing performance and deburring effect for high-precision plastic product processing are improved by improving the shape of the cutting edge.
[0007] In order to realize the purpose of the utility model, the technical scheme adopted is:
[0008] A whole type hard alloy double edge T type knife, comprising:
[0009] A cutting tool head is arranged at the end of the tool handle, and the cutting tool head is a double edge cutting structure arranged on a cylindrical cutting section;
[0010] The cutting surface of the double edge cutting structure is provided with a first cutting edge and a second cutting edge which are arranged symmetrically along the axis of the cutting surface;
[0011] The radial surface of the first cutting edge is inclined outward along the extension line of the axis at an angle of 28±1°;
[0012] The radial cutting surface of the second cutting edge is inclined outward along the extension line of the axis at an angle of 0°;
[0013] The spiral cutting edge of the double-blade cutting structure is provided with a peripheral edge distributed around a chip removal groove between the first cutting edge and the second cutting edge for chip removal;
[0014] The peripheral edge is provided with a first peripheral edge clearance angle and a second peripheral edge clearance angle;
[0015] The first peripheral edge clearance angle is 15±1°;
[0016] The second peripheral edge clearance angle is 30±1°;
[0017] The front end of the double-blade cutting structure is provided with a front end tooth;
[0018] The front end tooth is provided with a first front end tooth rake angle and a first front end tooth clearance angle and a second front end tooth clearance angle;
[0019] The first front end tooth rake angle is 8±1°;
[0020] The first front end tooth clearance angle is 15±1°;
[0021] The second front end tooth clearance angle is 25±2°;
[0022] The rear end of the double-blade cutting structure is provided with a rear end tooth;
[0023] The rear end tooth is provided with a rear end tooth clearance angle, and the rear end tooth clearance angle is 5±1°.
[0024] In one preferred embodiment of the utility model, the spiral angle of the spiral cutting edge is 15°.
[0025] In one preferred embodiment of the utility model, the front blade rake angle or the rear blade rake angle of the double-blade cutting structure is 2°.
[0026] In one preferred embodiment of the utility model, the integral hard alloy double-blade T-shaped cutter is integrally formed by adopting tungsten carbide.
[0027] In one preferred embodiment of the utility model, the shank end is provided with an inclined surface.
[0028] The utility model has the advantages of:
[0029] The integral hard alloy double-blade T-shaped cutter is specially developed for plastic products, adopts a special T-shaped design, and the arc feature design of the blade edge can make the product be once-molded, greatly improves the processing efficiency; the unique cutter angle design can make the product be processed without burr residue, and the appearance quality is guaranteed. BRIEF DESCRIPTION OF DRAWINGS
[0030] Figure 1 It is a structure schematic view (radial view) of the utility model.
[0031] Figure 2 It is a structure schematic view (axial view) of the utility model.
[0032] Figure 3 It is a local schematic view (peripheral edge enlarged view) of the utility model.
[0033] Figure 4 It is a local schematic view (front end tooth enlarged view) of the utility model.
[0034] Figure 5 It is a local schematic view (rear end tooth enlarged view) of the utility model. DETAILED DESCRIPTION
[0035] In order to make the purpose, technical scheme and advantages of the utility model more clear and explicit, the utility model is further described in detail below through the drawings and examples. However, it should be understood that the specific examples described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following structure, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.
[0036] In the description of the utility model, it should be pointed out that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, "first", "second" are only for the purpose of description and cannot be understood as indicating or implying relative importance.
[0037] As Figures 1-5 The utility model discloses a whole type hard alloy double edge T type knife, including handle 100, the cutting tool head is set up at the end of handle 100, and the cutting tool head is the double edge cutting structure 120 set up on cylindrical cutting section 110.
[0038] The whole type hard alloy double edge T type knife is integrally formed by adopting tungsten carbide, which can enhance the hardness of itself.
[0039] The cutting surface of the double edge cutting structure 120 is provided with the first cutting edge 121 and the second cutting edge 122 which are symmetrically arranged along the axis of the cutting surface.
[0040] The cutting angle of the radial surface of the first cutting edge 121 is outwardly inclined by 28±1° along the extension line 101 of the axis.
[0041] The cutting angle of the radial cutting surface of the second cutting edge 122 is outwardly inclined by 0° along the extension line 101 of the axis.
[0042] The spiral cutting edge 130 of the double-edge cutting structure is provided with a peripheral edge 131, and high-efficiency cutting is achieved through the spiral arrangement of the peripheral edge.
[0043] The peripheral edge 131 is distributed around the chip removal groove between the first cutting edge 121 and the second cutting edge 122 for chip removal.
[0044] The peripheral edge 131 is provided with a first peripheral edge clearance angle 1311 and a second peripheral edge clearance angle 1312, and in this embodiment, the first peripheral edge clearance angle 1311 is 15°, and the second peripheral edge clearance angle 1312 is 30°.
[0045] The front end tooth 123 is provided at the front end of the double-edge cutting structure 120, and the front end tooth 123 directly participates in the cutting process of the workpiece surface.
[0046] The front end tooth 123 is provided with a first front end tooth rake angle 1231 and a first front end tooth clearance angle 1232 and a second front end tooth clearance angle 1233.
[0047] The first front end tooth rake angle 1231 is 8±1°, the first front end tooth clearance angle 1232 is 15±1°, and the second front end tooth clearance angle 1233 is 25±2°.
[0048] The rear end tooth 124 is provided at the rear end of the double-edge cutting structure 120, and is used to support and guide the cutting process to ensure the stability of the machining.
[0049] The rear end tooth 124 is provided with a rear end tooth clearance angle 1241, and in this embodiment, the rear end tooth clearance angle 1241 is 5°.
[0050] In this embodiment, the spiral angle of the spiral cutting edge 130 is 15°, and the front edge inclination angle or the rear edge inclination angle of the double-edge cutting structure 120 is 2°.
[0051] Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application. These changes and improvements all fall within the scope of the claimed application, and the scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A monolithic cemented carbide double edge T-shaped tool, characterized in that, It comprises: a shank, a double-edge cutting structure provided on a cylindrical cutting section at the end of the shank; a first cutting edge and a second cutting edge are provided on the cutting surface of the double-edge cutting structure and are symmetrically arranged along the axis of the cutting surface; the cutting angle of the radial surface of the first cutting edge is outwardly inclined by 28±1° along the extension of the axis; the cutting angle of the radial surface of the second cutting edge is outwardly inclined by 0° along the extension of the axis; a peripheral edge is provided on the helical cutting edge of the double-edge cutting structure, which is distributed around the chip removal groove between the first cutting edge and the second cutting edge; the peripheral edge is provided with a first peripheral edge clearance angle and a second peripheral edge clearance angle; the angle of the first peripheral edge clearance angle is 15±1°; the angle of the second peripheral edge clearance angle is 30±1°; a front end tooth is provided at the front end of the double-edge cutting structure; the front end tooth is provided with a first front end tooth rake angle and a first front end tooth clearance angle and a second front end tooth clearance angle; the angle of the first front end tooth rake angle is 8±1°; the angle of the first front end tooth clearance angle is 15±1°; the angle of the second front end tooth clearance angle is 25±2°; a rear end tooth is provided at the rear end of the double-edge cutting structure; the rear end tooth is provided with a rear end tooth clearance angle, which is 5±1°.
2. The integral cemented carbide double-edge T-shaped cutter according to claim 1, wherein the helix angle of the helical cutting edge is 15°.
3. The integral cemented carbide double-edge T-shaped cutter according to claim 1, wherein the front edge inclination angle or the rear edge inclination angle of the double-edge cutting structure is 2°.
4. A solid cemented carbide double edge T-shaped tool according to claim 1, characterized in that the integral cemented carbide double-edge T-shaped cutter is integrally formed by using tungsten carbide.