A numerical control grinding device for drill blade zone
By introducing a processing table and a combination of various motors, screws, nuts, connecting plates, etc. into the drill bit regrinding device, the angle and position of the drill bit can be adjusted quickly, solving the problem that existing devices cannot adjust quickly and improving regrinding efficiency and effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DANYANG BAOJIE TOOLS CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-05
AI Technical Summary
Existing CNC regrinding devices for drill bit cutting edges cannot quickly adjust the angle and position of the drill bit, resulting in poor regrinding effect, inability to perform sufficient regrinding work on the drill bit, and low regrinding efficiency.
The drill bit is rapidly adjusted in angle and position by using a combination structure consisting of a processing table, a first motor, a rotating screw, a ball bearing nut seat, a connecting block, a connecting frame, a slide groove, a slider, a fixed screw, a fixed nut, a connecting plate, a limit plate, a limit hole, an adjusting plate, a connecting shell, a spring, a moving plate, a limit rod, a connecting seat, a second motor, a connecting shaft, a fixed block, and a cylinder. The drill bit is then ground by using a cylinder to hold it, adjusting the limit rod, and raising and lowering the connecting plate, in conjunction with a motor-driven grinding disc.
It enables rapid angle and position adjustment of the drill bit, improves the efficiency and effect of regrinding, and allows the drill bit to be regrinded at the most suitable angle and position, thus enhancing the comprehensiveness and efficiency of regrinding.
Smart Images
Figure CN224322819U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of drill bit regrinding, and in particular to a CNC regrinding device for drill bit cutting edge. Background Technology
[0002] A drill bit is a cutting tool used to machine holes in solid materials. It is widely used in many fields such as machinery manufacturing, construction, woodworking, and geological exploration. Its core function is to remove material by using the cutting edge of the head through rotation or impact motion to form a hole with a certain size and precision. Drill bits need to be regrinded during use. Regrinding is mainly to restore its cutting performance, ensure machining quality, extend service life, and adapt to different machining needs. CNC regrinding devices are required for regrinding. CNC regrinding devices have very high regrinding effect and efficiency. Therefore, there is a particular need for a CNC regrinding device for drill bit cutting edges.
[0003] However, most existing CNC regrinding devices for drill bit cutting edges cannot quickly adjust the angle and position of the drill bit, thus failing to perform sufficient regrinding work and resulting in poor regrinding effects.
[0004] To address the aforementioned issues, a search revealed a patent with publication number CN 220592511 U, which discloses a drill bit grinding and processing device. The patent describes a device comprising a base plate, support legs, a support frame, a lifting hydraulic press, a support plate, a slide rod, a grinding device, and a clamping device. The support legs are evenly distributed under the base plate, the support frame is mounted on the base plate, the lifting hydraulic press is located below the top wall of the base plate, and two sets of lifting hydraulic presses are symmetrically arranged. The support plate is located below the lifting hydraulic press, the grinding device is mounted on the support plate, the slide rod is located on the inner side wall of the support frame, and the clamping device is located on the slide rod. This utility model belongs to the field of drill bit processing technology, specifically referring to a device for mobile grinding of drill bits. The aforementioned drill bit regrinding and processing device, while capable of mobile grinding of the drill bit and offering high stability and ease of grinding, suffers from a drawback: the friction between the grinding roller and the drill bit during grinding generates significant heat. Excessive heat may damage both the grinding roller and the drill bit, thus affecting the device's operation. This new drill bit regrinding and processing device utilizes a combination of a first motor, a threaded rod, a threaded block, a first electric push rod, a mounting box, a grinding roller, and a second motor. This allows the device to be started by controlling the first motor. This causes the threaded rod to rotate, which in turn causes the threaded block to move laterally. By controlling the first electric push rod to start, the mounting box is lowered. By controlling the second motor to start, the grinding roller rotates, thus grinding the drill bit. This allows the device to freely adjust the grinding position, making the grinding of the drill bit more comprehensive and indirectly increasing work efficiency. This drill bit grinding device, through the combined use of a water tank, inlet pipe, mounting plate, nozzle, water pipe, placement plate, wastewater tank, first filter screen, and second filter screen, allows the device to control the submersible pump to start, thereby filling the water tank... Water is drawn into the nozzle and then sprayed out to cool the grinding roller, enabling continuous operation and indirectly increasing work efficiency. The first filter screen allows wastewater to pass through and be collected in the wastewater tank. The first and second filters filter the grinding debris adsorbed in the water, facilitating the recycling and reuse of the collected wastewater and improving the practicality of the device. However, the grinding device cannot quickly adjust the angle and position of the drill bit, and cannot perform comprehensive and efficient grinding of the drill bit, resulting in low grinding efficiency.
[0005] In light of this, in-depth research into the aforementioned issues led to the creation of this case. Utility Model Content
[0006] The purpose of this invention is to provide a CNC regrinding device for drill bit cutting edges, in order to solve the problem mentioned in the background art that most existing CNC regrinding devices for drill bit cutting edges cannot quickly adjust the angle and position of the drill bit, cannot perform sufficient regrinding work on the drill bit, and have poor regrinding effect.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a CNC grinding device for drill bit cutting edges, comprising a machining table, a first motor fixedly mounted on one side surface of the machining table, a rotating screw fixedly connected to the output end of the first motor, a ball bearing nut seat sleeved on the outer wall of the rotating screw, a connecting block fixedly mounted on the outer wall of the ball bearing nut seat, a connecting frame fixedly mounted on one side surface of the connecting block, a connecting groove formed on one side surface of the connecting frame, sliding grooves formed on the inner walls of both sides of the connecting frame, a movable slider disposed inside the sliding groove, and a fixing screw welded to one side surface of the slider. One end of the screw is threaded with a fixing nut. A connecting plate is fixedly installed on one side surface of the slider. A limit plate is fixedly installed on the upper side surface of the connecting plate. A limit hole is formed on the surface of the limit plate. A connecting rod is mounted on one end of the limit plate. An adjusting plate is fixedly installed on the upper end of the connecting rod. A connecting seat is fixedly installed on the upper side surface of the adjusting plate. A second motor is fixedly installed on one side surface of the connecting seat. A connecting shaft is fixedly connected to the output end of the second motor. A fixing block is fixedly installed on the outer wall of the connecting shaft. Cylinders are fixedly installed on both sides of the fixing block. A fixing plate is fixedly connected to the output end of the cylinder.
[0008] Preferably, the rotating screw and the processing table form a rotating structure, and the slider and the connecting frame form a sliding structure through a sliding groove.
[0009] Preferably, the fixing screw forms a sliding structure with the connecting frame through the connecting groove, and one end of the fixing screw passes through the connecting groove and is threadedly connected to the fixing nut.
[0010] Preferably, the limiting holes are equally spaced on one side surface of the limiting plate, and the adjusting plate forms a rotating structure with the limiting plate through a connecting rod.
[0011] Preferably, a connecting shell is fixedly installed on the upper surface of the adjusting plate, a spring is fixedly installed inside the connecting shell, a movable plate is fixedly connected to the other end of the spring, a limit rod is fixedly installed at one end of the movable plate, and the movable plate and the connecting shell form a telescopic structure through the spring.
[0012] Preferably, a mounting frame is fixedly installed at one end of the processing table, a third motor is fixedly installed on one side surface of the mounting frame, a drive shaft is fixedly connected to the output end of the third motor, and a grinding disc is fixedly installed on the outer wall of the drive shaft.
[0013] Preferably, the grinding disc is rotated with the mounting frame via a drive shaft.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This CNC regrinding device for drill bit cutting edges, through the arrangement of a machining table, a first motor, a rotating screw, a ball bearing nut seat, a connecting block, a connecting frame, a connecting groove, a slide, a slider, a fixed screw, a fixed nut, a connecting plate, a limiting plate, a limiting hole, a connecting rod, an adjusting plate, a connecting shell, a spring, a moving plate, a limiting rod, a connecting seat, a second motor, a connecting shaft, a fixed block, a cylinder, and a fixed plate, allows the drill bit to be regrinded to be placed in the fixed block during regrinding work. The cylinder then moves the two fixed blocks together. Simultaneously, the fixed plate moves towards the center to clamp the drill bit. Pull the limit rod and rotate the adjusting plate. The rotation of the adjusting plate allows the drill bit to be adjusted in angle. After adjusting to the appropriate angle, release the limit rod to fix it. Finally, loosen the fixing nut and move the connecting plate. When the connecting plate rises and falls, it can move the drill bit up and down, allowing the drill bit to move to the appropriate grinding position. This allows for quick adjustment of the drill bit's angle and position, ensuring the drill bit is in the most suitable angle and position for grinding. The angle and direction can also be adjusted at any time during the grinding process, improving the efficiency and effect of grinding. Attached Figure Description
[0015] Figure 1 This is a side view of the appearance structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the mutual cooperation structure of the rotating screw and the ball nut seat of this utility model;
[0017] Figure 3 This is a schematic diagram of the interaction between the slider and the connecting plate of this utility model;
[0018] Figure 4 This is a schematic diagram of the interaction between the adjusting plate and the connecting shell of this utility model;
[0019] Figure 5 This is a schematic diagram of the structure in which the fixing block and the cylinder cooperate with each other in this utility model;
[0020] Figure 6 This is a schematic diagram of the structure in which the mounting bracket and the third motor of this utility model cooperate.
[0021] In the diagram: 1. Machining table; 2. First motor; 3. Rotating screw; 4. Ball bearing nut seat; 5. Connecting block; 6. Connecting frame; 7. Connecting groove; 8. Slide groove; 9. Slider; 10. Fixing screw; 11. Fixing nut; 12. Connecting plate; 13. Limiting plate; 14. Limiting hole; 15. Connecting rod; 16. Adjusting plate; 17. Connecting shell; 18. Spring; 19. Moving plate; 20. Limiting rod; 21. Connecting seat; 22. Second motor; 23. Connecting shaft; 24. Fixing block; 25. Cylinder; 26. Fixing plate; 27. Mounting frame; 28. Third motor; 29. Drive shaft; 30. Grinding disc. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-6This utility model provides a technical solution: a CNC grinding device for drill bit blades, including a processing table 1. A first motor 2 is fixedly installed on one side surface of the processing table 1. A rotating screw 3 is fixedly connected to the output end of the first motor 2. A ball nut seat 4 is sleeved on the outer wall of the rotating screw 3. A connecting block 5 is fixedly installed on the outer wall of the ball nut seat 4. A connecting frame 6 is fixedly installed on one side surface of the connecting block 5. A connecting groove 7 is formed on one side surface of the connecting frame 6. Sliding grooves 8 are formed on the inner walls of both sides of the connecting frame 6. A movable slider 9 is arranged inside the sliding groove 8. A fixing screw 10 is welded to one side surface of the slider 9. A fixing nut 11 is threadedly connected to one end of the fixing screw 10. A fixing nut 11 is fixedly installed on one side surface of the slider 9. A connecting plate 12 is provided, and a limiting plate 13 is fixedly installed on the upper surface of the connecting plate 12. Limiting holes 14 are formed on the surface of the limiting plate 13. A connecting rod 15 is mounted on one end of the limiting plate 13 via a bearing. An adjusting plate 16 is fixedly installed on the upper end of the connecting rod 15. A connecting seat 21 is fixedly installed on the upper surface of the adjusting plate 16. A second motor 22 is fixedly installed on one side surface of the connecting seat 21. A connecting shaft 23 is fixedly connected to the output end of the second motor 22. A fixing block 24 is fixedly installed on the outer wall of the connecting shaft 23. Cylinders 25 are fixedly installed on both sides of the fixing block 24. A fixing plate 26 is fixedly connected to the output end of the cylinder 25. The system is connected via a processing table 1, a first motor 2, a rotating screw 3, a ball bearing nut seat 4, and a connecting block 5. The components 6 (connecting bracket), 7 (connecting groove), 8 (slide groove), 9 (slider), 10 (fixing screw), 11 (fixing nut), 12 (connecting plate), 13 (limiting plate), 14 (limiting hole), 15 (connecting rod), 16 (adjusting plate), 17 (connecting shell), 18 (spring), 19 (moving plate), 20 (limiting rod), 21 (connecting seat), 22 (second motor), 23 (connecting shaft), 24 (fixing block), 25 (cylinder), and 26 are arranged as follows: During grinding, the drill bit to be ground is first placed in the fixing block 24. The cylinder 25 moves both fixing plates 26 simultaneously towards the center to clamp the drill bit. The limiting rod 20 is pulled and the adjusting plate 16 is rotated. The rotation of the adjusting plate 16 allows the drill bit to be adjusted in angle. After adjusting to the appropriate angle, the limiting rod 20 is released, and the limiting rod 20 can be engaged. The corresponding limiting hole 14 is fixed, and finally the fixing nut 11 is loosened and the connecting plate 12 is moved. When the connecting plate 12 is raised and lowered, it can carry the drill bit to move up and down, so that the drill bit can be moved to a suitable grinding position. In this way, the angle and position of the drill bit can be quickly adjusted, so that the drill bit is in the most suitable angle and position for grinding. The angle and direction can also be adjusted at any time during the grinding process, which improves the grinding efficiency and grinding effect. When grinding, the first motor 2 makes the rotating screw 3 rotate, and the ball nut seat 4 will carry the connecting block 5 and the connecting frame 6 to move horizontally. The drill bit will be carried to move towards the grinding plate 30. During grinding, the second motor 22 can also make the connecting rod 15 carry the fixing block 24 to rotate back and forth, which improves the grinding effect.
[0024] Furthermore, the rotating screw 3 and the processing table 1 form a rotating structure, and the slider 9 forms a sliding structure with the connecting frame 6 through the slide groove 8. With the setting of the slide groove 8 and the slider 9, the slider 9 will slide in the slide groove 8 when the connecting plate 12 is raised and lowered. The slider 9 can assist and limit the raising and lowering of the connecting plate 12.
[0025] Furthermore, the fixing screw 10 forms a sliding structure with the connecting frame 6 through the connecting groove 7. One end of the fixing screw 10 passes through the connecting groove 7 and is threadedly connected to the fixing nut 11. Through the setting of the fixing screw 10 and the fixing nut 11, the fixing screw 10 and the fixing nut 11 can fix the position of the slider 9, thereby fixing the position of the connecting plate 12.
[0026] Furthermore, the limiting holes 14 are equally spaced on one side surface of the limiting plate 13. The adjusting plate 16 forms a rotating structure with the limiting plate 13 through the connecting rod 15. With the setting of the limiting holes 14, when the limiting rod 20 is inserted into the limiting holes 14 at different positions, the drill bit can be fixed in the required position.
[0027] Furthermore, a connecting shell 17 is fixedly installed on the upper surface of the adjusting plate 16. A spring 18 is fixedly installed inside the connecting shell 17. A moving plate 19 is fixedly connected to the other end of the spring 18. A limit rod 20 is fixedly installed on one end of the moving plate 19. The moving plate 19 and the connecting shell 17 form a telescopic structure through the spring 18. When the limit rod 20 is not under force, the elastic force of the spring 18 can make the moving plate 19 lower with the limit rod 20, and the limit rod 20 will be locked into the limit hole 14 at the corresponding position.
[0028] Furthermore, a mounting bracket 27 is fixedly installed at one end of the processing table 1, and a third motor 28 is fixedly installed on one side surface of the mounting bracket 27. The output end of the third motor 28 is fixedly connected to a drive shaft 29, and a grinding disc 30 is fixedly installed on the outer wall of the drive shaft 29. With the arrangement of the mounting bracket 27, the third motor 28, the drive shaft 29, and the grinding disc 30, when performing grinding work, the third motor 28 causes the drive shaft 29 to rotate with the grinding disc 30. At this time, the drill bit can be brought close to the grinding disc 30 to perform grinding work.
[0029] Furthermore, the grinding disc 30 forms a rotating structure with the mounting bracket 27 via the drive shaft 29. With the grinding disc 30 in place, the drill bit can be ground when the grinding disc 30 rotates.
[0030] Working principle: When performing grinding, first place the drill bit to be ground in the fixed block 24. The cylinder 25 moves the two fixed plates 26 to the middle at the same time to clamp the drill bit. Pull the limit rod 20 and rotate the adjusting plate 16. The rotation of the adjusting plate 16 can adjust the angle of the drill bit. After adjusting to the appropriate angle, release the limit rod 20. The limit rod 20 can be locked into the corresponding limit hole 14 for fixation. Finally, loosen the fixing nut 11 and move the connecting plate 12. When the connecting plate 12 rises and falls, it can move the drill bit up and down. When performing grinding, the first motor 2 rotates the rotating screw 3. The ball nut seat 4 will move the connecting block 5 and the connecting frame 6 horizontally. The drill bit will be moved towards the grinding plate 30. During grinding, the second motor 22 can also make the connecting rod 15 rotate the fixed block 24 back and forth.
[0031] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A CNC grinding device for drill bit cutting edge, comprising a machining table (1), characterized in that: A first motor (2) is fixedly installed on one side surface of the processing table (1). A rotating screw (3) is fixedly connected to the output end of the first motor (2). A ball nut seat (4) is sleeved on the outer wall of the rotating screw (3). A connecting block (5) is fixedly installed on the outer wall of the ball nut seat (4). A connecting frame (6) is fixedly installed on one side surface of the connecting block (5). A connecting groove (7) is opened on one side surface of the connecting frame (6). Sliding grooves (8) are opened on both sides of the inner wall of the connecting frame (6). A movable slider (9) is provided inside the sliding groove (8). A fixing screw (10) is welded to one side surface of the slider (9). A fixing nut (11) is threaded to one end of the fixing screw (10). A connecting rod (11) is fixedly installed on one side surface of the slider (9). A plate (12) is connected to a connecting plate (12). A limiting plate (13) is fixedly installed on the upper surface of the connecting plate (12). A limiting hole (14) is opened on the surface of the limiting plate (13). A connecting rod (15) is mounted on one end of the limiting plate (13). An adjusting plate (16) is fixedly installed on the upper end of the connecting rod (15). A connecting seat (21) is fixedly installed on the upper surface of the adjusting plate (16). A second motor (22) is fixedly installed on one side surface of the connecting seat (21). A connecting shaft (23) is fixedly connected to the output end of the second motor (22). A fixing block (24) is fixedly installed on the outer wall of the connecting shaft (23). A cylinder (25) is fixedly installed on both sides of the fixing block (24). A fixing plate (26) is fixedly connected to the output end of the cylinder (25).
2. The CNC grinding device for drill bit cutting edge as described in claim 1, characterized in that: The rotating screw (3) and the processing table (1) form a rotating structure, and the slider (9) and the connecting frame (6) form a sliding structure through the sliding groove (8).
3. A CNC grinding device for drill bit cutting edge as described in claim 1, characterized in that: The fixing screw (10) forms a sliding structure with the connecting frame (6) through the connecting groove (7), and one end of the fixing screw (10) passes through the connecting groove (7) and is threadedly connected to the fixing nut (11).
4. A CNC grinding device for drill bit cutting edge as described in claim 1, characterized in that: The limiting holes (14) are equally spaced on one side surface of the limiting plate (13), and the adjusting plate (16) forms a rotating structure with the limiting plate (13) through the connecting rod (15).
5. A CNC grinding device for drill bit cutting edge as described in claim 1, characterized in that: A connecting shell (17) is fixedly installed on the upper surface of the adjusting plate (16). A spring (18) is fixedly installed inside the connecting shell (17). A moving plate (19) is fixedly connected to the other end of the spring (18). A limit rod (20) is fixedly installed on one end of the moving plate (19). The moving plate (19) and the connecting shell (17) form a telescopic structure through the spring (18).
6. A CNC grinding device for drill bit cutting edge according to claim 1, characterized in that: A mounting bracket (27) is fixedly installed at one end of the processing table (1). A third motor (28) is fixedly installed on one side surface of the mounting bracket (27). A transmission shaft (29) is fixedly connected to the output end of the third motor (28). A grinding disc (30) is fixedly installed on the outer wall of the transmission shaft (29).
7. A CNC grinding device for drill bit cutting edge as described in claim 6, characterized in that: The grinding disc (30) forms a rotating structure with the mounting bracket (27) via the drive shaft (29).