Sawtooth blade with large cutting width

Abstract

The utility model discloses a serrated blade with large cutting width, which relates to the technical field of turning tools and comprises a long-strip-shaped cutter body, a plurality of machining teeth are arranged at one end of the cutter body along the length direction of the cutter body, a chip groove is arranged between every two adjacent machining teeth, a positioning column is arranged at one end of the cutter body far away from the machining teeth, and the positioning column is arranged on the cutter body. A mounting hole is formed in the cutter body; the long-strip-shaped cutter body is adopted, the optimal length of the cutter body ranges from 28 mm to 32 mm, the multiple machining teeth with the height ranging from 3 mm to 4 mm are arranged in the length direction of the cutter body, cutting can be conducted through the multiple teeth at the same time, and the machining efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of turning tools, in particular to a sawtooth blade with a large cutting width. Background Art

[0002] A turning tool is a tool with a cutting part used for turning. It is one of the most widely used tools in cutting. The cutting part of a turning tool is mainly composed of the main cutting edge, the secondary cutting edge, the rake face, the main flank face and the secondary flank face, and the tool tip angle.

[0003] A serrated blade is a type of turning tool. Since the tooth shape of the processed teeth of the serrated blade is relatively large, while the blade base of the processed teeth is relatively small, some serrated blades in the prior art generally adopt a single-tooth processing method, resulting in low processing efficiency. Therefore, a serrated blade with a large cutting width is required. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model solves the problems with the following technical structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sawtooth blade with a large cutting width comprises: a blade body, the blade body is in the shape of an elongated strip, one end of the blade body is provided with a plurality of processing teeth along the length direction of the blade body, a chip removal groove is provided between two adjacent processing teeth, a positioning column is provided at one end of the blade body away from the processing teeth, and a mounting hole is provided on the blade body.

[0007] A further feature is that

[0008] The cutting edge of the machining tooth is a blunt edge.

[0009] The machining teeth are provided with double clearance angles, which are respectively a first clearance angle α and a second clearance angle β.

[0010] The first back angle α is in a range of 18 to 21 degrees.

[0011] The second back angle β is in a range of 28 to 30 degrees.

[0012] The positioning column is arranged at the middle part of the end surface of the knife body.

[0013] The knife body is provided with raised positioning parts on both sides of the positioning column.

[0014] The end surface of the raised positioning portion is arranged to be inclined, and the inclination direction is from the side away from the cutting end of the processing tooth to the side close to the cutting end of the processing tooth.

[0015] At least two mounting holes are provided.

[0016] The height of the processing teeth is 3 mm to 4 mm.

[0017] The above structure of the utility model can achieve the following beneficial effects:

[0018] A long strip-shaped cutter body is used, and the optimal length of the cutter body is between 28 mm and 32 mm. A plurality of processing teeth with a height between 3 mm and 4 mm are arranged in the length direction of the cutter body. Multiple teeth can perform cutting at the same time, which greatly improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the three-dimensional structure of this embodiment;

[0020] Figure 2 This is a structural schematic diagram of another viewing angle of this embodiment;

[0021] Figure 3 It is a side view of this embodiment.

[0022] In the figure: 1, cutter body; 2, machining teeth; 3, positioning column; 4, mounting hole; 5, raised positioning portion; 6, mounting interface; α, first clearance angle; β, second clearance angle. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0024] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0025] The following is combined with Figure 1-Figure 3 This application is described in further detail.

[0026] refer to Figure 1-Figure 3A serrated blade with a large cutting width is shown, comprising: a cutter body 1, a plurality of processing teeth 2 are arranged in a straight line at one end of the cutter body 1, a chip removal groove 6 is arranged between two adjacent processing teeth 2, a positioning column 3 is arranged at the end of the cutter body 1 away from the processing teeth 2, and a mounting hole 4 is arranged on the cutter body 1. In this way, a long strip cutter body 1 is adopted, and the length of the cutter body 1 is optimally between 28 mm and 32 mm, and a plurality of processing teeth 2 with a height between 3 mm and 4 mm are arranged in the length direction of the cutter body 1, so that multiple teeth can be cut simultaneously, which greatly improves the processing efficiency.

[0027] Further optimization is that the cutting edge of the machining tooth 2 is a blunt edge, and a blunt edge is provided between the cutting edge of the machining tooth 2 and the front angle, which can effectively improve the service life of the cutting edge of the machining tooth 2 without affecting the cutting effect of the machining tooth 2.

[0028] like Figure 3 As shown, the machining tooth 2 is provided with a double back angle, which are respectively a first back angle α and a second back angle β. The double back angle design provides an avoidance effect and can effectively prevent the back angle of the machining tooth 2 from interfering with the workpiece. At the same time, the double back angle design effectively increases the machining strength of the cutting edge of the machining tooth 2.

[0029] In this embodiment, the first back angle α is preferably 18 to 21 degrees (for example, 18, 19, 20, 21, etc.), and the second back angle β is preferably 28 to 30 degrees (for example, 28, 29, 30, etc.).

[0030] like Figure 2 and Figure 3 As shown, the positioning column 3 is arranged in the middle part of the end face of the blade body 1, and the blade body 1 is provided with raised positioning parts 5 on both sides of the positioning column 3. The end faces of the raised positioning parts 5 are inclined, and the inclination direction is from the side away from the cutting end of the processing tooth 2 to the side close to the cutting end of the processing tooth 2. In this way, the design of the two raised positioning parts 5 makes the blade more stable after installation. At the same time, the groove design formed between the raised positioning part 5 and the positioning column 3 reduces the manufacturing difficulty and material cost of the blade. The inclined setting of the end face of the raised positioning part 5 makes it easy for the blade to be embedded in the blade seat after it is installed on the blade seat. During processing, when the cutting edge of the processing tooth 2 is subjected to force, the blade seat supports the blade through the two raised positioning parts 5, so that the blade has better stability during use and is not easy to vibrate.

[0031] like Figure 1 and Figure 2 As shown, at least two mounting holes 4 are provided. Since the cutter body 1 is relatively large, the cutter body 1 is locked on the cutter seat by using the mounting holes, and the locking force is more stable than that of a conventional single locking screw.

[0032] The working principle of the utility model is as follows: a long strip-shaped cutter body 1 is adopted, the length of the cutter body 1 is optimally between 28 mm and 32 mm, and a plurality of processing teeth 2 with a height between 3 mm and 4 mm are arranged in the length direction of the cutter body 1, so that multiple teeth can perform cutting at the same time, which greatly improves the processing efficiency.

[0033] The above are only preferred embodiments of the present application, and the present invention is not limited to the above embodiments. It is understood that other improvements and changes directly derived or associated by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included in the protection scope of the present invention.

Claims

1. A serrated blade with a large cutting width, characterized in that: include: A cutter body (1) is in the shape of an elongated strip, one end of the cutter body (1) is provided with a plurality of machining teeth (2) along the length direction of the cutter body (1), a chip removal groove (6) is provided between two adjacent machining teeth (2), a positioning column (3) is provided at one end of the cutter body (1) away from the machining teeth (2), and a mounting hole (4) is provided on the cutter body (1).

2. A serrated blade with a large cutting width according to claim 1, characterized in that: The cutting edge of the machining tooth (2) is a blunt edge.

3. A serrated blade with a large cutting width according to claim 2, characterized in that: The machining tooth (2) is provided with double back angles, which are respectively a first back angle α and a second back angle β.

4. A serrated blade with a large cutting width according to claim 3, characterized in that: The first back angle α is in a range of 18 to 21 degrees.

5. A serrated blade with a large cutting width according to claim 3, characterized in that: The second back angle β is in a range of 28 to 30 degrees.

6. A serrated blade with a large cutting width according to claim 1, characterized in that: The positioning column (3) is arranged at the middle part of the end surface of the knife body (1).

7. A serrated blade with a large cutting width according to claim 6, characterized in that: The knife body (1) is provided with raised positioning portions (5) on both sides of the positioning column (3).

8. A serrated blade with a large cutting width according to claim 7, characterized in that: The end surface of the raised positioning portion (5) is arranged to be inclined, and the inclination direction is from the side away from the cutting end of the processing tooth (2) to the side close to the cutting end of the processing tooth (2).

9. The serrated blade with large cutting width according to claim 1, characterized in that: At least two mounting holes (4) are provided.

10. The serrated blade with large cutting width according to claim 1, characterized in that: The height of the processing teeth (2) is 3 mm to 4 mm.

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