Anti-adhesion twist drill capable of improving efficiency
By designing the first cutting edge and the second cutting edge on the twist drill, and setting a step reinforcement block and anti-adhesion layer on the drill tip and chip drain surface, the problems of insufficient sharpness of the twist drill and chip adhesion are solved, and efficient cutting and anti-adhesion effect are achieved.
Patent Information
- Application Number
- CN202421986928.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-16
AI Technical Summary
The existing twist drills are not sharp, and chips are prone to stick to the cutting grooves, resulting in low working efficiency.
The first cutting edge and the second cutting edge are designed, and a step reinforcement block group is set, and an anti-adhesion layer is applied to the drill tip and the surface of the spiral chip drainage groove to enhance the sharpness and cutting efficiency of the drill bit and prevent chip adhesion.
It improves the working efficiency of the twist drill, enhances the cutting efficiency, prevents chips from sticking to the drill bit, and improves the processing efficiency.
Smart Images
Figure CN223098084U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drill bits, and particularly relates to an anti-adhesion twist drill for improving efficiency. Background Art
[0002] In metal cutting, the hole drilling process accounts for about 40% - 50% of the total cutting volume, especially in the aerospace and automotive manufacturing industries, and the production volume of drill bits accounts for about 60% of the total tool production volume. Among them, the twist drill is one of the most common hole drilling tools. The twist drill is a circular hole tool for drilling workpieces by rotating and cutting relative to its fixed axis.
[0003] Currently, the sharpness of twist drills is not high, and the working efficiency has always been relatively low. Moreover, during the use process, the chips that fall off always adhere to the cutting grooves and are not easily discharged, resulting in even lower working efficiency. Summary of the Utility Model
[0004] The main purpose of the utility model is to provide an anti-adhesion twist drill for improving efficiency.
[0005] By setting the first cutting edge and the second cutting edge, the working efficiency is increased; by setting the first strengthening block, the second strengthening block and the third strengthening block, the cutting efficiency is further enhanced, and through the anti-adhesion layer, it is avoided that the cutting objects adhere to the drill bit and are not easily discharged.
[0006] To solve the above technical problems, the utility model discloses an anti-adhesion twist drill for improving efficiency, which includes: a drill rod, a spiral chip removal groove is provided on the lower side of the drill rod, a drill tip is provided at the bottom of the drill rod, the drill tip includes a first cutting edge and a second cutting edge, the included angle between the first cutting edge and the second cutting edge is 135 - 138°, a stepped strengthening block group is provided on the surfaces of the first cutting edge and the second cutting edge, the stepped strengthening block group includes an arc-shaped first strengthening block provided on the surfaces of the first cutting edge and the second cutting edge, a second strengthening block provided outside the first strengthening block, and a third strengthening block provided outside the second strengthening block. The vertical cross-sections of the first strengthening block, the second strengthening block and the third strengthening block are triangular. The height of the first strengthening block is lower than that of the second strengthening block, and the height of the second strengthening block is lower than that of the third strengthening block. An anti-adhesion layer is provided on the surfaces of the spiral chip removal groove and the drill tip.
[0007] According to an embodiment of the utility model, the width of the first strengthening block is lower than that of the second strengthening block, and the width of the second strengthening block is lower than that of the third strengthening block.
[0008] According to an embodiment of the utility model, the number of the spiral chip removal grooves is two groups.
[0009] Compared with the prior art, the present application can obtain the following technical effects:
[0010] 1) By setting the first cutting edge and the second cutting edge, the working efficiency is increased; by setting the first strengthening block, the second strengthening block and the third strengthening block, the cutting efficiency is further enhanced, and with the anti-adhesion layer, it is avoided that the cuttings adhere to the drill bit and are not easily discharged.
[0011] Of course, it is not necessary for any product implementing the present utility model to achieve all the above technical effects simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:
[0013] Figure 1 is the front view of the anti-adhesion twist drill for improving efficiency according to the embodiment of the present application.
[0014] Figure 2 is the Figure 1 partial enlarged view of the drill tip in the embodiment of the present application.
[0015] REFERENCE NUMERALS
[0016] drill rod 10, spiral chip removal groove 20, drill tip 30, first cutting edge 40, second cutting edge 50, stepped strengthening block group 60, first strengthening block 61, second strengthening block 62, third strengthening block 63, anti-adhesion layer 70. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] The following will describe in detail the embodiments of the present application in conjunction with the drawings and embodiments, so as to fully understand how the present application uses technical means to solve technical problems and achieve the realization process of technical effects and implement accordingly.
[0018] Please refer to Figure 1 and Figure 2 , Figure 1 is the front view of the anti-adhesion twist drill for improving efficiency according to the embodiment of the present application. Figure 2 is the Figure 1Partial enlarged view of the center drill tip 30. As shown in the figure, an anti-sticking twist drill for improving efficiency includes: a drill rod 10, a spiral chip removal groove 20 is provided on the lower side of the drill rod 10, a drill tip 30 is provided at the bottom of the drill rod 10, the drill tip 30 includes a first cutting edge 40 and a second cutting edge 50, the included angle between the first cutting edge 40 and the second cutting edge 50 is 135 - 138°, a stepped strengthening block group 60 is provided on the surfaces of the first cutting edge 40 and the second cutting edge 50, the stepped strengthening block group 60 includes an arc-shaped first strengthening block 61 provided on the surfaces of the first cutting edge 40 and the second cutting edge 50, a second strengthening block 62 provided outside the first strengthening block 61, and a third strengthening block 63 provided outside the second strengthening block 62. The vertical cross-sections of the first strengthening block 61, the second strengthening block 62, and the third strengthening block 63 are triangular. The height of the first strengthening block 61 is lower than that of the second strengthening block 62, and the height of the second strengthening block 62 is lower than that of the third strengthening block 63. An anti-sticking layer 70 is provided on the surfaces of the spiral chip removal groove 20 and the drill tip 30.
[0019] In the embodiment of the present utility model, a spiral chip removal groove is provided on the drill rod 10. The number of the spiral chip removal grooves 20 is two groups for chip removal. A drill tip 30 is provided at the bottom of the drill rod 10. The drill tip 30 includes a first cutting edge 40 and a second cutting edge 50. The included angle between the first cutting edge 40 and the second cutting edge 50 is 135 - 138°. By providing the first cutting edge 40 and the second cutting edge 50, the working efficiency is increased. A stepped strengthening block group 60 is provided on the surfaces of the first cutting edge 40 and the second cutting edge 50. The stepped strengthening block group 60 includes an arc-shaped first strengthening block 61 provided on the surfaces of the first cutting edge 40 and the second cutting edge 50, a second strengthening block 62 provided outside the first strengthening block 61, and a third strengthening block 63 provided outside the second strengthening block 62. By providing the first strengthening block 61, the second strengthening block 62, and the third strengthening block 63, the cutting efficiency is further enhanced.
[0020] Furthermore, the vertical cross-sections of the first strengthening block 61, the second strengthening block 62, and the third strengthening block 63 are designed to be triangular to enhance the sharpness of the first strengthening block 61, the second strengthening block 62, and the third strengthening block 63. Finally, the height of the first strengthening block 61 is lower than that of the second strengthening block 62, the height of the second strengthening block 62 is lower than that of the third strengthening block 63, the width of the first strengthening block 61 is lower than that of the second strengthening block 62, and the width of the second strengthening block 62 is lower than that of the third strengthening block 63. Overall, the strength of the drill tip 30 is further enhanced, and the cutting efficiency is increased.
[0021] Furthermore, an anti-sticking layer 70 is provided on the surfaces of the spiral chip removal groove 20 and the drill tip 30 to prevent cutting materials from sticking to the drill bit and being difficult to discharge.
[0022] The above description shows and describes several preferred embodiments of the present application. However, as previously mentioned, it should be understood that the present application is not limited to the forms disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications, and environments, and can be changed within the scope contemplated by the present application through the above teachings or the techniques or knowledge in the relevant field. Any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present application shall fall within the protection scope of the appended claims of the present application.
Claims
1. An anti-sticking twist drill for improving efficiency, characterized in that, Including: A drill pipe, a spiral chip removal groove is provided on the lower side of the drill pipe, a drill tip is provided at the bottom of the drill pipe, the drill tip includes a first cutting edge and a second cutting edge, the included angle between the first cutting edge and the second cutting edge is 135-138°, a stepped strengthening block group is provided on the surfaces of the first cutting edge and the second cutting edge, the stepped strengthening block group includes an arc-shaped first strengthening block provided on the surfaces of the first cutting edge and the second cutting edge, a second strengthening block provided outside the first strengthening block, and a third strengthening block provided outside the second strengthening block. The vertical cross-sections of the first strengthening block, the second strengthening block, and the third strengthening block are triangular. The height of the first strengthening block is lower than that of the second strengthening block, and the height of the second strengthening block is lower than that of the third strengthening block. An anti-adhesion layer is provided on the surfaces of the spiral chip removal groove and the drill tip.
2. The anti-sticking twist drill for improving efficiency according to claim 1, wherein The width of the first strengthening block is lower than that of the second strengthening block, and the width of the second strengthening block is lower than that of the third strengthening block.
3. The anti-sticking twist drill for improving efficiency according to claim 1, wherein The number of the spiral chip removal grooves is two groups.