Front wave edge drill bit for machining heat-resistant steel

Abstract

The utility model relates to the technical field of drill bits, in particular to a front wave edge drill bit for machining heat-resistant steel, which comprises a drill bit part, a straight handle part is mounted at the right end of the drill bit part, a chisel edge is arranged at the left end of the drill bit part, and first cutting edges are arranged at the front end and the rear end of the chisel edge. The front wave edge drill bit comprises a first cutting edge, a second cutting edge, a chip rolling groove and a chip containing groove are formed in the outer side of the first cutting edge, and a third cutting edge is arranged at one end of the second cutting edge. Under the combination of the first cutting edge and the second cutting edge, the cutting length of the drill bit can be increased, the cutting performance of the drill bit is guaranteed, meanwhile, the third cutting edge can improve the strength of the tool nose part of the drill bit, the service life of the drill bit is prolonged, and under the connection of the chip rolling groove and the chip containing groove, generated chips can be bent and broken off, so that the service life of the drill bit is prolonged. Meanwhile, the chip containing requirement of the drill bit is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of drill bits, in particular to a front wave edge drill bit for processing heat-resistant steel. Background Art

[0002] In the process of mechanical processing, the drill bit is an indispensable tool, especially when processing difficult-to-process materials such as heat-resistant steel, which requires extremely high performance of the drill bit.

[0003] A front wave edge drill bit currently used for processing heat-resistant steel has high hardness and high toughness. The chips are difficult to break during drilling, which causes great wear on the drill cutting edge, making it difficult to protect the drill bit and reducing the service life of the drill bit.

[0004] In summary, the present invention solves the problems in the above-mentioned background technology by designing a front wave edge drill bit for processing heat-resistant steel. Utility Model Content

[0005] The purpose of the utility model is to provide a front wave edge drill bit for processing heat-resistant steel, so as to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A front wave edge drill bit for processing heat-resistant steel includes a drill head, a straight shank portion fixedly mounted on the right end of the drill head, a chisel edge provided on the left end of the drill head, a No. 1 cutting edge provided at both the front and rear ends of the chisel edge, a No. 2 cutting edge, a chip roll groove and a chip receiving groove provided on the outer side of the No. 1 cutting edge, and a No. 3 cutting edge provided at one end of the No. 2 cutting edge.

[0008] As a preferred solution of the present invention, the chisel edge is in a linear structure.

[0009] As a preferred solution of the present invention, the chisel edges are symmetrically distributed about the center axis of the left end of the drill head.

[0010] As a preferred solution of the present invention, the No. 1 cutting edge and the No. 2 cutting edge are arranged adjacent to each other, and the chip rolling groove and the chip containing groove are arranged adjacent to each other.

[0011] As a preferred solution of the present invention, the No. 1 cutting edge, the No. 2 cutting edge, the chip roll groove, the chip receiving groove and the No. 3 cutting edge are all distributed in rotational symmetry with respect to the left center axis of the chisel edge.

[0012] As a preferred solution of the present invention, the outer surface of the third cutting edge is higher than the outer surface of the drill head, and its material is heat-resistant steel.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] In the utility model, a front wave edge drill bit for processing heat-resistant steel is provided, thereby utilizing the structural design of the No. 1 cutting edge, the No. 2 cutting edge, the No. 3 cutting edge, the chip groove and the chip holding groove. With the combination of the No. 1 cutting edge and the No. 2 cutting edge, the cutting length of the drill bit can be increased, thereby ensuring the cutting performance of the drill bit. At the same time, the No. 3 cutting edge can improve the strength of the tip part of the drill bit, thereby increasing the service life of the drill bit. With the connection of the chip groove and the chip holding groove, the chips can be bent and broken after being generated, while increasing the chip holding requirement of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front structural diagram of the drill bit of the utility model;

[0016] Figure 2 This is a schematic diagram of the left side structure of the drill bit of the utility model;

[0017] Figure 3 This is a schematic structural diagram of an embodiment of the present utility model.

[0018] In the figure: 1. Drill head; 2. Straight shank; 3. Chisel edge; 4. Cutting edge No. 1; 5. Cutting edge No. 2; 6. Chip groove; 7. Chip receiving groove; 8. Cutting edge No. 3. DETAILED DESCRIPTION

[0019] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0024] A front wave edge drill bit for machining heat-resistant steel comprises a drill head 1, a straight shank 2 being fixedly mounted on the right end of the drill head 1, a chisel edge 3 being provided on the left end of the drill head 1, a first cutting edge 4 being provided at both the front and rear ends of the chisel edge 3, a second cutting edge 5, a chip roll groove 6, and a chip receiving groove 7 being provided on the outer side of the first cutting edge 4, and a third cutting edge 8 being provided at one end of the second cutting edge 5;

[0025] Specifically, the chisel edge 3 is in a straight line structure, and the chisel edge 3 is symmetrically distributed about the left end center axis of the drill head 1;

[0026] In this embodiment, the arrangement of the chisel edge 3 can ensure the stability and symmetry of the drill bit during machining, thereby improving machining efficiency and precision.

[0027] Specifically, the first cutting edge 4 and the second cutting edge 5 are adjacently arranged, the chip groove 6 and the chip groove 7 are adjacently arranged, the first cutting edge 4, the second cutting edge 5, the chip groove 6, the chip groove 7 and the third cutting edge 8 are all rotationally symmetrically distributed about the left central axis of the chisel edge 3, the outer surface of the third cutting edge 8 is higher than the outer surface of the drill head 1, and its material is heat-resistant steel;

[0028] In this embodiment, the adjacent arrangement of the first cutting edge 4 and the second cutting edge 5 can effectively increase the cutting length of the drill bit and ensure the strength of the drill bit cutting edge, while the arrangement of the third cutting edge 8 is mainly used to protect the tip of the drill bit and improve its strength. At the same time, the chip groove 6 and the chip groove 7 are connected in a straight line, such as Figure 3 As shown, the chip groove 6 forms an angle P with the straight line, so that the drill can roll chips more fully, and the chip groove 6 can bend and break the chips after they are generated, meeting the use requirements of the drill.

[0029] The working process of the present invention is as follows: when using a front wave edge drill bit for processing heat-resistant steel, the straight line setting of the chisel edge 3 can improve the cutting stability of the drill bit, and the No. 2 cutting edge 5 can assist the No. 1 cutting edge 4 in cutting, so that the cutting length of the drill bit is increased. At the same time, the No. 3 cutting edge 8 is made of heat-resistant steel to enhance the high temperature resistance and cutting ability of the drill bit. Finally, with the adjacent setting of the chip groove 6 and the chip groove 7, the chips are bent and broken in the chip groove 6, and the chip groove 7 can increase the chip holding capacity of the drill bit, avoid chip blockage, and improve the practical effect of the drill bit.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A front wave edge drill bit for processing heat-resistant steel, comprising a drill head (1), characterized in that: A straight shank (2) is fixedly mounted on the right end of the drill head (1), a chisel edge (3) is provided on the left end of the drill head (1), a No. 1 cutting edge (4) is provided at both the front and rear ends of the chisel edge (3), a No. 2 cutting edge (5), a chip roll groove (6) and a chip receiving groove (7) are provided on the outer side of the No. 1 cutting edge (4), and a No. 3 cutting edge (8) is provided at one end of the No. 2 cutting edge (5).

2. The front wave edge drill bit for processing heat-resistant steel according to claim 1, characterized in that: The chisel edge (3) is in the shape of a linear structure.

3. The front wave edge drill bit for processing heat-resistant steel according to claim 1, characterized in that: The chisel edges (3) are symmetrically distributed about the left end center axis of the drill head (1).

4. The front wave edge drill bit for machining heat-resistant steel according to claim 1, characterized in that: The first cutting edge (4) and the second cutting edge (5) are arranged adjacent to each other, and the chip groove (6) and the chip receiving groove (7) are arranged adjacent to each other.

5. The front wave edge drill bit for machining heat-resistant steel according to claim 1, characterized in that: The first cutting edge (4), the second cutting edge (5), the chip groove (6), the chip receiving groove (7) and the third cutting edge (8) are all distributed in rotational symmetry with respect to the left central axis of the chisel edge (3).

6. The front wave edge drill bit for machining heat-resistant steel according to claim 1, characterized in that: The outer surface of the third cutting edge (8) is higher than the outer surface of the drill head (1), and its material is heat-resistant steel.

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