High-strength wear-resistant drill bit

Abstract

The utility model provides a high-strength wear-resistant drill bit which comprises an installation drill handle and a punching drill bit connected to the front end of the installation drill handle, a spiral groove is formed in the punching drill bit, a spiral guide reinforcing strip is arranged on the punching drill bit, and the arrangement track of the spiral guide reinforcing strip is parallel to the arrangement track of the spiral groove. And the spiral guide reinforcing strip is arranged on the outer side wall of the punching drill bit. According to the high-strength wear-resistant drill bit provided by the utility model, the spiral guide reinforcing strip is arranged, so that the spiral guide reinforcing strip has a certain thickness during drilling, the possibility of drill bit breakage is reduced, and the strength and the wear resistance of the drill bit can be improved to a certain extent.

Description

Technical Field

[0001] This utility model belongs to the field of drilling bit technology, specifically relating to a high-strength wear-resistant drill bit. Background Technology

[0002] In modern industrial production, drill bits, as a common cutting tool, are widely used in drilling operations on various materials. During continuous drilling, especially when drilling deep holes, drill bits are prone to wear, and they are subjected to high bending stress during operation, particularly when drilling dense metal materials. Therefore, drill bits are prone to breakage when their strength is insufficient. Utility Model Content

[0003] The main purpose of this utility model is to provide a high-strength wear-resistant drill bit to improve the strength and wear resistance of the drill bit.

[0004] To achieve the above objectives, this utility model provides a high-strength wear-resistant drill bit, which includes a mounting shank and a drilling bit connected to the front end of the mounting shank. The drilling bit is provided with a spiral groove and a spiral guide reinforcement strip. The trajectory of the spiral guide reinforcement strip is parallel to the trajectory of the spiral groove. The spiral guide reinforcement strip is disposed on the outer side wall of the drilling bit.

[0005] The high-strength wear-resistant drill bit provided by this utility model has a certain thickness due to the setting of a spiral guide reinforcement strip during drilling, which reduces the possibility of drill bit breakage and can improve the strength and wear resistance of the drill bit to a certain extent.

[0006] In one possible implementation, the outer wall of the drilling bit is divided into a helical shape by the helical groove, and the helical guide reinforcement strip is disposed on the side of the outer wall of the drilling bit near the mounting shank, with the outer edge of the helical guide reinforcement strip flush with the outer edge of the outer wall of the drilling bit. This design allows the helical guide reinforcement strip to better integrate with the overall structure of the drill bit, providing more effective reinforcement, while also ensuring the overall appearance regularity of the drill bit and facilitating stable guidance of the drill bit during the drilling process.

[0007] In one possible implementation, the width of the helical guide reinforcement strip is less than 1 / 10 of the pitch of the helical groove, and the thickness of the helical guide reinforcement strip is less than 1 / 2 of its width. This dimensional design aims to maximize the strength and wear resistance of the helical guide reinforcement strip without affecting the normal chip removal function of the drill bit, enabling it to better withstand cutting forces and friction during drill bit operation and extending the drill bit's service life.

[0008] In one possible implementation, the surface of the helical guide reinforcement strip is coated with a TiN coating. TiN coating is a common hard coating with high hardness and good wear and corrosion resistance. By applying a TiN coating to the surface of the helical guide reinforcement strip, the wear resistance of the helical guide reinforcement strip and the entire drill bit can be further improved, reducing wear when machining materials with high hardness or roughness, maintaining the sharpness and accuracy of the drill bit, and improving drilling efficiency and quality.

[0009] In one possible implementation, the mounting shank and the drilling bit are integrally formed, and both are made of high-speed steel. This integral structure results in higher overall strength of the drill bit, preventing loosening or breakage at the connection point and ensuring the drill bit's stability under high-speed rotation and large cutting forces. High-speed steel is a high-performance tool material with high hardness, toughness, and wear resistance, meeting the basic material requirements for high-strength, wear-resistant drill bits, enabling efficient drilling operations under various complex working conditions. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of a high-strength wear-resistant drill bit structure provided by this utility model. Detailed Implementation

[0011] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0012] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0013] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0014] See attached diagram. Figure 1 , Figure 1 This is a schematic diagram of a high-strength wear-resistant drill bit structure provided by this utility model, as shown below. Figure 1As shown, the high-strength wear-resistant drill bit provided by this utility model includes a mounting shank 1 and a drilling drill bit 2 connected to the front end of the mounting shank 1. The drilling drill bit 2 is provided with a spiral groove 3 and a spiral guide reinforcement strip 4. The trajectory of the spiral guide reinforcement strip 4 is parallel to the trajectory of the spiral groove 3. The spiral guide reinforcement strip 4 is disposed on the outer side wall of the drilling drill bit 2.

[0015] The high-strength wear-resistant drill bit provided by this utility model has a certain thickness due to the spiral guide reinforcement strip 4. This reduces the possibility of drill bit breakage and can improve the strength and wear resistance of the drill bit to a certain extent.

[0016] In one possible implementation, the outer wall of the drilling bit 2 is divided into a helical shape by the helical groove 3, and the helical guide reinforcement strip 4 is disposed on the side of the outer wall of the drilling bit 2 near the mounting shank 1, with the outer edge of the helical guide reinforcement strip 4 flush with the outer edge of the outer wall of the drilling bit 2. This design allows the helical guide reinforcement strip 4 to better integrate with the overall structure of the drill bit, providing more effective reinforcement, while also ensuring the overall neatness of the drill bit's appearance and facilitating stable guidance of the drill bit during the drilling process.

[0017] In one possible implementation, the width of the helical guide reinforcement strip 4 is less than 1 / 10 of the pitch of the helical groove 3, and the thickness of the helical guide reinforcement strip 4 is less than 1 / 2 of its width. This dimensional design aims to maximize the strength and wear resistance of the helical guide reinforcement strip 4 without affecting the normal chip removal function of the drill bit, enabling it to better withstand cutting forces and friction during drill bit operation and extend the drill bit's service life.

[0018] In one possible implementation, the surface of the spiral guide reinforcement strip 4 is coated with a TiN coating. TiN coating is a common hard coating with high hardness and good wear resistance and corrosion resistance. By applying a TiN coating to the surface of the spiral guide reinforcement strip 4, the wear resistance of the spiral guide reinforcement strip 4 and the entire drill bit can be further improved. This reduces wear when machining materials with high hardness or roughness, maintains the sharpness and accuracy of the drill bit, and improves drilling efficiency and quality.

[0019] In one possible implementation, the mounting shank 1 and the drilling bit 2 are integrally formed, and both are made of high-speed steel. This integral structure results in higher overall strength of the drill bit, preventing loosening or breakage at the connection point and ensuring the drill bit's stability under high-speed rotation and large cutting forces. High-speed steel is a high-performance tool material with high hardness, toughness, and wear resistance, meeting the basic material requirements for high-strength, wear-resistant drill bits, enabling efficient drilling operations under various complex working conditions.

[0020] It is worth mentioning that those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-strength wear-resistant drill bit, characterized in that, The device includes a mounting shank and a drilling bit connected to the front end of the mounting shank. The drilling bit has a helical groove and a helical guide reinforcement strip. The trajectory of the helical guide reinforcement strip is parallel to the trajectory of the helical groove. The helical guide reinforcement strip is disposed on the outer side wall of the drilling bit. The surface of the helical guide reinforcement strip is coated with TiN. The width of the helical guide reinforcement strip is less than 1 / 10 of the pitch of the helical groove, and the thickness of the helical guide reinforcement strip is less than 1 / 2 of the width of the helical guide reinforcement strip.

2. The high-strength wear-resistant drill bit according to claim 1, characterized in that, The outer side wall of the drilling bit is divided into a spiral shape by the spiral groove, and the spiral guide reinforcement strip is disposed on the side of the outer side wall of the drilling bit near the mounting shank, with the outer edge of the spiral guide reinforcement strip flush with the outer edge of the outer side wall of the drilling bit.

3. The high-strength wear-resistant drill bit according to claim 2, characterized in that, The mounting drill shank and the drilling drill bit are integrally formed, and the mounting drill shank and the drilling drill bit are made of high-speed steel.

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