Deep hole machining drill bit convenient to disassemble
By designing an adjustable protective mechanism on the deep hole drilling bit and using a motor to drive the protective cover to rise and fall, the problems of damage and safety hazards to the drill bit in non-working states are solved, thereby extending the drill bit's lifespan and improving operational safety.
Patent Information
- Application Number
- CN202520308201.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Existing deep hole drilling bits that are easy to disassemble are easily damaged by external factors when not in use, and there are safety hazards for operators when debugging or maintaining them.
A deep hole drilling bit including an adjustable protective mechanism was designed. Through the cooperation of the guide block and the lifting block, the adjusting rod is driven to rotate by the control motor, which drives the protective cover to rise and fall, reducing the influence of external factors and protecting the drill bit when it is not in operation.
It extends the lifespan of drill bits, reduces damage caused by collisions and scratches, and lowers the risk of personal injury.
Smart Images

Figure CN223789595U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of deep hole drilling bit technology, specifically a deep hole drilling bit that is easy to disassemble. Background Technology
[0002] A deep hole drill bit is a tool specifically designed for machining deep holes. Deep hole machining refers to machining holes in a workpiece with a depth much greater than its diameter. Deep hole machining is technically challenging because the tool holder is slender, has poor rigidity, and is prone to vibration and bending. At the same time, heat dissipation and chip removal are also difficult. The materials for deep hole drill bits are usually cemented carbide or high-speed steel. To improve tool life and machining efficiency, the tool is sometimes coated. Deep hole machining requires the use of specialized machine tools and cooling and lubrication systems to ensure machining quality and efficiency.
[0003] Commonly used, easily disassembled deep hole drilling bits are usually not equipped with adjustment and protective devices. When not in use, the drill bits are easily affected by external factors such as collisions and scratches, which can lead to damage or scrapping. At the same time, if operators do not have protective devices, they may accidentally touch the drill bits when debugging or maintaining the machine tool, causing personal injury. This has certain adverse effects on the use of the tool. Therefore, we propose an easily disassembled deep hole drilling bit. Utility Model Content
[0004] Technical Problem Solved: Addressing the shortcomings of existing technologies, this utility model provides a deep-hole drilling bit that is easy to disassemble, offering advantages such as improved safety and extended drill bit lifespan. Through an adjustable protective mechanism, a guide block is fitted onto the outer wall of the guide rod via a through hole, enhancing guiding stability. A lifting block is fitted onto the outer wall of the adjusting rod via a threaded hole. A control motor drives the adjusting rod to rotate inside the adjusting groove, causing the lifting block to move up and down on the outer wall of the adjusting rod, thereby raising and lowering the protective cover. In non-working conditions, this reduces the impact of external factors such as collisions and scratches, thus extending the drill bit's lifespan. Furthermore, it prevents operators from touching the drill bit during machine tool debugging or maintenance, reducing personal injury and effectively solving the problems in the background technology.
[0005] Technical solution: To achieve the above objectives, the technical solution adopted by this utility model is as follows: a deep hole drilling bit that is easy to disassemble, including a drill connecting shank, the lower end of which is detachably connected to a drill bit, and an adjustment and protection mechanism is positioned and installed on the outer wall of the drill connecting shank. The adjustment and protection mechanism includes a positioning hole, an adjustment groove, a lifting groove, a control motor, an adjustment rod, a guide rod, a protective cover, a bottom protective tray, a guide block, a lifting block, a through hole, and a threaded hole.
[0006] Preferably, the drill connecting shank and the drill bit are fixed together by bolts.
[0007] Preferably, the positioning hole and the adjusting groove are both opened on one side of the outer wall of the drill connecting shank, the positioning hole is located at the upper end of the adjusting groove, the lifting groove is opened on the other side of the outer wall of the drill connecting shank, the control motor is located inside the positioning hole, the adjusting rod is located inside the adjusting groove, and the guide rod is located inside the lifting groove.
[0008] Preferably, the bottom protective tray is located at the lower end of the outer wall of the protective cover, the guide block is located on one side of the inner wall of the protective cover, the lifting block is located on the other side of the inner wall of the protective cover, the through hole is opened on the guide block, and the threaded hole is opened on the lifting block.
[0009] Preferably, one end of the control motor is fixedly connected to the inner wall of the positioning hole, the upper end of the adjusting rod passes through the inner side of the adjusting groove and is connected to the control motor, and both ends of the guide rod are fixedly connected to the inner wall of the lifting groove.
[0010] Preferably, the inner wall of the bottom protective tray is fixed to the outer wall of the protective cover by threads.
[0011] Preferably, one side of the guide block and the lifting block are fixedly connected to both sides of the inner wall of the protective cover.
[0012] Preferably, the guide block is sleeved on the outer wall of the guide rod through a through hole, and the lifting block is sleeved on the outer wall of the adjusting rod through a threaded hole.
[0013] Beneficial Effects: Compared with the prior art, this utility model provides a deep hole drilling bit that is easy to disassemble, and has the following beneficial effects: This easy-to-disassemble deep hole drilling bit, through the setting of an adjustment and protection mechanism, has a guide block sleeved on the outer wall of the guide rod through a through hole, which can enhance the guiding stability. The lifting block is sleeved on the outer wall of the adjustment rod through a threaded hole. The control motor can drive the adjustment rod to rotate inside the adjustment groove, so that the lifting block moves up and down on the outer wall of the adjustment rod, thereby driving the protective cover to move up and down. In the non-working state, it can reduce the influence of external factors, such as collisions and scratches, thereby extending the service life of the drill bit. At the same time, when operators are debugging or maintaining the machine tool, they can avoid touching the drill bit, reducing personal injury. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a deep hole drilling bit that is easy to disassemble according to this utility model.
[0015] Figure 2 This is a partial structural diagram of the drill connecting shank and adjustment and protection mechanism of a deep hole drilling bit that is easy to disassemble, according to this utility model.
[0016] Figure 3This is a partial structural diagram of the adjustable protective mechanism in a deep hole drilling bit that is easy to disassemble according to this utility model.
[0017] Figure 4 This is a partial structural disassembly diagram of the adjustment and protection mechanism in a deep hole drilling bit that is easy to disassemble according to this utility model.
[0018] Figure 5 This is a schematic diagram showing the disassembly of the protective cover and bottom protective tray in a deep hole drilling bit that is easy to disassemble according to this utility model.
[0019] In the diagram: 1. Drill connecting shank; 2. Drill bit; 3. Adjustment and protection mechanism; 301. Positioning hole; 302. Adjustment groove; 303. Lifting groove; 304. Control motor; 305. Adjustment rod; 306. Guide rod; 307. Protective cover; 308. Bottom protective tray; 309. Guide block; 310. Lifting block; 311. Through hole; 312. Threaded hole. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] like Figure 1-5 As shown, a deep hole drilling bit that is easy to disassemble includes a drill connecting shank 1, with a drill bit 2 detachably connected to the lower end of the drill connecting shank 1. An adjustment and protection mechanism 3 is positioned and installed on the outer wall of the drill connecting shank 1. The adjustment and protection mechanism 3 includes a positioning hole 301, an adjustment groove 302, a lifting groove 303, a control motor 304, an adjustment rod 305, a guide rod 306, a protective cover 307, a bottom protective tray 308, a guide block 309, a lifting block 310, a through hole 311, and a threaded hole 312. In the non-working state, it can reduce the impact of external factors, such as collisions and scratches, thereby extending the service life of the drill bit. At the same time, when operators are debugging or maintaining the machine tool, they can avoid touching the drill bit, reducing personal injury.
[0022] Furthermore, the drill connecting shank 1 and the drill bit 2 are fixed together by bolts to enhance the firmness and facilitate disassembly and replacement.
[0023] Furthermore, both the positioning hole 301 and the adjusting groove 302 are opened on one side of the outer wall of the drill connecting shank 1. The positioning hole 301 is located at the upper end of the adjusting groove 302, and the lifting groove 303 is opened on the other side of the outer wall of the drill connecting shank 1. The control motor 304 is located inside the positioning hole 301, the adjusting rod 305 is located inside the adjusting groove 302, and the guide rod 306 is located inside the lifting groove 303, which can enhance the guiding stability.
[0024] Furthermore, the bottom protective tray 308 is located at the lower end of the outer wall of the protective cover 307, the guide block 309 is located on one side of the inner wall of the protective cover 307, the lifting block 310 is located on the other side of the inner wall of the protective cover 307, the through hole 311 is opened on the guide block 309, the threaded hole 312 is opened on the lifting block 310, and the threaded hole 312 is compatible with the adjusting rod 305.
[0025] Furthermore, one end of the control motor 304 is fixedly connected to the inner wall of the positioning hole 301, the upper end of the adjusting rod 305 passes through the inner side of the adjusting groove 302 and is connected to the control motor 304, and both ends of the guide rod 306 are fixedly connected to the inner wall of the lifting groove 303 to enhance the firmness.
[0026] Furthermore, the inner wall of the bottom protective tray 308 is fixed to the outer wall of the protective cover 307 by threads, which strengthens the sturdiness and facilitates disassembly and assembly.
[0027] Furthermore, one side of the guide block 309 and the lifting block 310 are fixedly connected to both sides of the inner wall of the protective cover 307 to enhance the sturdiness.
[0028] Furthermore, the guide block 309 is sleeved on the outer wall of the guide rod 306 through the through hole 311, and the lifting block 310 is sleeved on the outer wall of the adjusting rod 305 through the threaded hole 312. When the adjusting rod 305 rotates, it can drive the lifting block 310 to move up and down on its outer wall.
[0029] Working Principle: A deep hole drilling bit that is easy to disassemble includes a drill connecting shank 1, a drill bit 2, and an adjustment and protection mechanism 3. During use, the drill connecting shank 1 and the drill bit 2 are fixed together with bolts, facilitating later disassembly and replacement. Through the adjustment and protection mechanism 3, a guide block 309 is fitted onto the outer wall of a guide rod 306 via a through hole 311, enhancing guiding stability. A lifting block 310 is fitted onto the outer wall of an adjusting rod 305 via a threaded hole 312. A bottom protective tray 308 and a protective cover 307 are fixed together with threads, providing bottom protection for the drill bit 2. A control motor 304 drives the adjusting rod 305 to rotate inside the adjusting groove 302, causing the lifting block 310 to move up and down on the outer wall of the adjusting rod 305, thereby raising and lowering the protective cover 307. In non-working conditions, this reduces the impact of external factors such as collisions and scratches, extending the drill bit's service life. Simultaneously, it prevents operators from touching the drill bit during machine tool debugging or maintenance, reducing personal injury.
[0030] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A deep hole machining drill bit which is easy to disassemble, comprising a drill connecting shank (1), characterized in that: The lower end of the drill connecting handle (1) is detachably connected with a drill bit (2), the outer wall of the drill connecting handle (1) is provided with an adjusting protection mechanism (3), the adjusting protection mechanism (3) comprises a positioning hole (301), an adjusting groove (302), a lifting groove (303), a control motor (304), an adjusting rod (305), a guide rod (306), a protective cover (307), a bottom protection tray (308), a guide block (309), a lifting block (310), a through hole (311) and a threaded hole (312).
2. The deep hole machining drill bit of claim 1, wherein: The drill connecting handle (1) and the drill bit (2) are fixed by bolts.
3. The deep hole machining drill bit of claim 2, wherein: The positioning hole (301) and the adjusting groove (302) are arranged on one side of the outer wall of the drill connecting handle (1), the positioning hole (301) is located at the upper end of the adjusting groove (302), the lifting groove (303) is arranged on the other side of the outer wall of the drill connecting handle (1), the control motor (304) is located on the inner side of the positioning hole (301), the adjusting rod (305) is located on the inner side of the adjusting groove (302), and the guide rod (306) is located on the inner side of the lifting groove (303).
4. The deep hole machining drill bit of claim 3, wherein: The bottom protection tray (308) is located at the lower end of the outer wall of the protective cover (307), the guide block (309) is located on one side of the inner wall of the protective cover (307), the lifting block (310) is located on the other side of the inner wall of the protective cover (307), the through hole (311) is arranged on the guide block (309), and the threaded hole (312) is arranged on the lifting block (310).
5. The deep hole machining drill bit of claim 4, wherein: One end of the control motor (304) is fixedly connected with the inner wall of the positioning hole (301), the upper end of the adjusting rod (305) penetrates the inner side of the adjusting groove (302) and is connected with the control motor (304), and both ends of the guide rod (306) are fixedly connected with the inner wall of the lifting groove (303).
6. The deep hole machining drill bit of claim 5, wherein: The inner wall of the bottom protection tray (308) is fixedly connected with the outer wall of the protective cover (307) through threads.
7. The deep hole machining drill bit of claim 6, wherein: The guide block (309) and the lifting block (310) are fixedly connected with the two sides of the inner wall of the protective cover (307) respectively.
8. The deep hole machining drill bit of claim 7, wherein: The guide block (309) is sleeved on the outer wall of the guide rod (306) through the through hole (311), and the lifting block (310) is sleeved on the outer wall of the adjusting rod (305) through the threaded hole (312).