Blade with cutting edge bevel angle

Abstract

The utility model discloses a blade with cutting edge bevel angles, which relates to the technical field of cutting tools and comprises an assembly head, a mounting groove is arranged at the front end above the surface of the assembly head, a cutting blade is arranged in the mounting groove, and fixing screw holes are arranged at four corners of the surface of the cutting blade in a penetrating manner. And a positioning screw hole is formed in the inner surface of the mounting groove in a manner of penetrating through the assembly head, and the positioning screw hole corresponds to the fixing screw hole in position. Compared with an existing common blade with a cutting edge bevel angle, the blade with the cutting edge bevel angle has the advantages that the cutting blade can rotate and turn over to adjust different vertexes to serve as cutting edges, the vertexes can be switched for use, the same cutting blade can be fully used, the loss of materials is greatly reduced, and the material cost is saved; countersunk bolts are screwed and inserted into the fixing screw holes and the positioning screw holes, so that the cutting blades are stably and firmly assembled in the mounting grooves, and the cutting blades are prevented from loosening and falling off in the working process.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting tools, in particular to a blade with a cutting edge bevel. Background Art

[0002] In the cutting process of some sheet-mounted or ring-mounted parts, there are usually processing requirements for the flash size and flash direction of the parts. In order to meet this processing requirement, a tool composed of a blade with a certain cutting edge bevel is generally used for processing.

[0003] For example, the public document with application number 202311714469.7 discloses an angled cutting blade and a cutting tool with enhanced chip breaking ability. The document arranges an inner concave area on the front cutting edge, which forms an enhanced chip breaking deformation area with the blade groove. When the cutting material flows through the front cutting edge and the front cutting face of the blade, it is forced to deform and curl, and break into C-shaped chips or spring-shaped chips, so that the chips can be smoothly discharged from the vicinity of the workpiece, ensuring the surface quality of the workpiece and the life of the tool. The cutting blade is easy to obtain and can be obtained by removing materials using a general angled blade. It has good economy. However, in the document, the blade has only one front cutting face that preferentially contacts the workpiece for turning. The cutting face of the cutting blade that is used for a long time will wear out, thereby stalling, affecting the quality of the turned workpiece, and the cutting blade will need to be replaced. The remaining cutting faces of the cutting blade are difficult to fully utilize or are even discarded without being used, resulting in low actual utilization of the cutting blade, failure to fully utilize the same cutting blade, waste of resources, and increased cost of use.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a blade with a cutting edge bevel is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a blade with a cutting edge bevel to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a blade with a bevel cutting edge, comprising an assembly head, a mounting groove is provided at the front end above the surface of the assembly head, a cutting blade is arranged inside the mounting groove, fixing screw holes are provided through the four corners of the surface of the cutting blade, a positioning screw hole is provided through the inner surface of the mounting groove through the assembly head, and the positioning screw hole corresponds to the position of the fixing screw hole, and the fixing screw hole and the inner surface of the positioning screw hole are threadedly connected with countersunk bolts.

[0007] Preferably, the shape of the cutting blade is set to be a parallelogram, and the shape angles of each vertex of the cutting blade are the same.

[0008] Preferably, a tool handle is fixedly provided at the rear end of the assembly head, and the upper surface of the assembly head is inclined from top to bottom toward one end of the tool handle.

[0009] Preferably, the inclination angle of the groove body of the mounting groove is the same as the inclination angle of the assembly head, and the cutting blade is closely matched with the inclined surface of the mounting groove.

[0010] Preferably, the vertical inclination angle between the front end horizontal plane of the assembly head and the tool handle is α (0°<α≤30°), and the cutting blade is located inside the mounting groove, so that the assembly head as a whole forms a complete plane.

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

[0012] 1. The utility model provides a cutting blade, a fixing screw hole, a positioning screw hole and a countersunk bolt, so that each top of the cutting blade is the same and is a parallelogram, so that the cutting blade can be rotated and flipped to adjust different vertices to act as cutting edges, so that one cutting blade can have eight cutting edges. When the cutting vertex at one end of the cutting blade is worn, the vertex can be switched and continued to be used, so that the same cutting blade can be fully used, which greatly reduces the loss of materials and saves material costs. Through the fixing screw hole and the positioning screw hole, the cutting blade can be accurately matched regardless of rotation or flipping, so that after the countersunk bolt is screwed in, the cutting blade is stably and firmly assembled in the installation groove, preventing the cutting blade from loosening and falling off during operation;

[0013] 2. The utility model arranges an assembly head and a mounting groove. The assembly head is inclined with the front higher and the rear lower, so that the mounting groove is also inclined. After the cutting blade is installed in the mounting groove, an oblique angle is formed between the cutting blade and the tool holder. The oblique angle is greater than 0°, so that when the cutting blade is performing turning processing, the waste chips can move to the front end and fall on the workpiece to be processed. The moving direction of the waste chips is stably and accurately controlled to prevent the waste chips from falling on the surface of the processed workpiece, causing wear to the processed workpiece and affecting the quality of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the overall disassembly and assembly head of the utility model;

[0016] Figure 3 It is a schematic diagram of the overall side structure of the utility model.

[0017] In the figure: 1. Assembly head; 2. Mounting groove; 3. Cutting blade; 4. Fixing screw hole; 5. Positioning screw hole; 6. Countersunk bolt; 7. Tool handle. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1-Figure 3 As shown, a blade with a cutting edge bevel comprises an assembly head 1, a mounting groove 2 is provided at the front end above the surface of the assembly head 1, a cutting blade 3 is arranged inside the mounting groove 2, fixing screw holes 4 are penetrated at the four corners of the surface of the cutting blade 3, a positioning screw hole 5 is provided on the inner surface of the mounting groove 2 through the assembly head 1, and the positioning screw hole 5 corresponds to the position of the fixing screw hole 4, countersunk bolts 6 are threadedly connected to the inner surfaces of the fixing screw hole 4 and the positioning screw hole 5, the shape of the cutting blade 3 is set to be a parallelogram, and the shape angles of each vertex of the cutting blade 3 are the same, a tool handle 7 is fixedly provided at the rear end of the assembly head 1, and the surface of the assembly head 1 is inclined from top to bottom toward one end of the tool handle 7, the groove body inclination angle of the mounting groove 2 is the same as the inclination angle of the assembly head 1, and the cutting blade 3 is closely matched with the inclined surface of the mounting groove 2, the vertical inclination angle between the horizontal plane of the front end of the assembly head 1 and the tool handle 7 is α (0°<α≤30°), and the cutting blade 3 is located inside the mounting groove 2, so that the assembly head 1 as a whole forms a completed plane.

[0020] Furthermore, the cutting blade 3 and the mounting groove 2 have the same parallelogram shape, so that the cutting blade 3 and the mounting groove 2 can fit closely and be stably assembled.

[0021] Furthermore, the cutting blade 3 utilizes its parallelogram shape so that each vertex of the cutting blade 3 can be placed at the cutting position and used as a cutting edge, so that the cutting blade 3 can be fully utilized.

[0022] Furthermore, the assembly head 1 is arranged in an inclined shape with the front higher and the rear lower, so that after the cutting blade 3 is installed, the upper surface formed is an overall inclined surface greater than 0°, thereby being able to push the waste chips generated by turning onto the processed workpiece, thereby preventing the waste chips from falling onto the surface of the processed workpiece, causing wear to the processed workpiece and affecting the quality of the workpiece.

[0023] Working principle: When using the blade with a beveled cutting edge, first, place the cutting blade 3 into the mounting groove 2, then fix the cutting blade 3 in the mounting groove 2 by screwing the countersunk bolt 6, and use the fixing screw hole 4 and the positioning screw hole 5 to install it with the assembly head 1. After the installation is completed, the cutting blade 3 can be driven by the machine to turn the workpiece. During turning, since the assembly head 1 and the tool holder 7 are set to a bevel shape greater than 0°, during turning, waste chips will be pushed to move to the unprocessed workpiece, and the direction of the waste chips can be controlled. After the cutting blade 3 is used for a long time, the cutting edge will cause wear. At this time, you only need to disassemble the cutting blade 3, and change the vertex of the same cutting blade 3 facing the outside for cutting by flipping or changing the face, so as to switch the cutting edge and make full use of the same cutting blade 3. This is the working principle of the blade with a beveled cutting edge.

Claims

1. A blade with a beveled cutting edge, comprising an assembly head (1), characterized in that: A mounting groove (2) is provided at the front end of the upper surface of the assembly head (1), a cutting blade (3) is arranged inside the mounting groove (2), fixing screw holes (4) are provided at the four corners of the surface of the cutting blade (3), a positioning screw hole (5) is provided on the inner surface of the mounting groove (2) through the assembly head (1), and the positioning screw hole (5) corresponds to the position of the fixing screw hole (4), and the inner surfaces of the fixing screw hole (4) and the positioning screw hole (5) are threadedly connected with countersunk bolts (6).

2. A blade with a beveled cutting edge according to claim 1, characterized in that: The shape of the cutting blade (3) is set to be a parallelogram, and the shape angles of the vertices of the cutting blade (3) are the same.

3. A blade with a beveled cutting edge according to claim 1, characterized in that: A knife handle (7) is fixedly provided at the rear end of the assembly head (1), and the upper surface of the assembly head (1) is inclined from top to bottom towards one end of the knife handle (7).

4. A blade with a beveled cutting edge according to claim 1, characterized in that: The inclination angle of the groove body of the installation groove (2) is the same as the inclination angle of the assembly head (1), and the cutting blade (3) is closely matched with the inclined surface of the installation groove (2).

5. The blade with a beveled cutting edge according to claim 1, characterized in that: The front end horizontal plane of the assembly head (1) and the handle (7) have a vertical inclination angle of α (0°<α≤30°), and the cutting blade (3) is located inside the mounting groove (2), so that the assembly head (1) as a whole forms a complete plane.

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