Anti-impact drill bit

Abstract

The utility model relates to the technical field of machining equipment, in particular to an anti-impact drill bit which comprises a main body, a cutter handle is arranged at one end of the main body, a cutter head is arranged at the end, away from the cutter handle, of the main body, the cutter head comprises four cutting edges, the cutting edges are in a ladder arc shape, and a chip groove is formed in the main body. The independent ladder-arc-shaped cutting edges can reduce impact force on the whole cutting edges, the impact resistance of the drill bit is higher, the stability is higher, when one cutting edge is damaged, the drill bit can continue to be used, continuous use of the drill bit is not affected, and loss of the drill bit is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of machining equipment, in particular to an impact-resistant drill bit. Background Art

[0002] A drill bit is a tool used to drill through holes or blind holes in solid materials, and can also expand existing holes. Common drill bits include twist drills, flat drills, center drills, deep hole drills, and trepanning drills. Among them, twist drills are mainly used as processing tools during drilling operations. Ordinary drill bits cannot continue to drill if the blade is damaged during the drilling process, resulting in large losses. In addition, when operating in impact mode, the drill bit is more easily damaged and has poor impact resistance. Utility Model Content

[0003] In view of this, an object of the present invention is to provide an impact-resistant drill bit to solve the above-mentioned problem.

[0004] Based on the above purpose, the utility model provides an impact-resistant drill bit, including a main body, one end of the main body is provided with a shank, the end of the main body away from the shank is provided with a cutter head, the cutter head includes four cutting edges, the cutting edges are trapezoidal, and the main body is provided with a chip groove.

[0005] Optionally, the four blades are independent of each other and separated from each other and arranged in a cross.

[0006] Optionally, the chip groove is a double helix structure.

[0007] Optionally, the diameter of the handle is greater than the diameter of the body, and the cross-section of the handle is hexagonal.

[0008] The beneficial effects of the utility model are as follows: the independently arranged trapezoidal arc blade can reduce a certain impact force, making the drill bit more impact-resistant and more stable, thereby accelerating the drilling efficiency; when one of the blades is damaged, the drill bit can continue to be used without affecting the continued use of the drill bit, thereby reducing the wear of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0010] Figure 1 A schematic diagram of an impact-resistant drill bit according to an embodiment of the utility model Figure 1 ;

[0011] Figure 2The structure of an impact-resistant drill bit according to an embodiment of the utility model is shown in FIG. Figure 2 .

[0012] The markings in the figure are:

[0013] 1. Main body; 2. Handle; 3. Cutting head; 4. Blade block; 5. Chip groove. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0015] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0016] like Figure 1 and Figure 2 As shown, an impact-resistant drill bit comprises a main body 1, one end of the main body 1 is provided with a shank 2, the end of the main body 1 away from the shank 2 is provided with a cutter head 3, the cutter head 3 comprises four cutting edges 4, the cutting edges 4 are trapezoidal, and the main body 1 is provided with a chip removal groove 5.

[0017] In one embodiment, if Figure 2 As shown, the four blades 4 are independent and separated from each other and arranged in a cross.

[0018] In one embodiment, the chip groove 5 is a double helix structure.

[0019] In one embodiment, if Figure 2 As shown, the diameter of the knife handle 2 is greater than the diameter of the main body 1, and the cross-section of the knife handle 2 is hexagonal.

[0020] When the drill is drilling, the four independently arranged blades 4 make it possible for the other blades 4 to continue drilling when one of the blades 4 is damaged, without affecting the continued use of the drill, thereby reducing the wear and tear of the drill. The four blades 4 are independent and separated from each other, so that there are relatively more and smoother channels for chip removal. In addition, the trapezoidal arc-shaped blade 4 can reduce the impact force on the entire blade 4 when drilling in violent modes such as impact mode of the electric drill, and has stronger impact resistance and higher stability, thereby accelerating the drilling efficiency. The double-helix chip groove 5 makes chip removal smoother. The diameter of the shank 2 is larger than the diameter of the main body 1, ensuring that it is clamped on the shank 2, making the clamping more firm and more stable.

[0021] A person skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. An impact-resistant drill bit, comprising a main body (1), characterized in that: A handle (2) is provided at one end of the main body (1), and a cutter head (3) is provided at one end of the main body (1) away from the handle (2). The cutter head (3) comprises four blades (4), and the blades (4) are in a trapezoidal arc shape. A chip removal groove (5) is provided on the main body (1); the four blades (4) are independent of each other and separated from each other and arranged in a cross shape; the chip removal groove (5) is a double helical structure; the diameter of the handle (2) is greater than the diameter of the main body (1), and the cross section of the handle (2) is hexagonal.

Images