A drill bit chisel grinding self-centering chuck
By simplifying the installation steps of the drill bit's chisel edge through an adjustment mechanism and using an auxiliary mechanism to collect debris, the problem of cumbersome screwdriver fixing methods in existing technologies is solved, resulting in more efficient drill bit chisel edge sharpening and a cleaner environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 昆山团工工业设备有限公司
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-21
AI Technical Summary
The existing method of fixing the drill bit chisel edge chuck by turning the screw with a screwdriver is cumbersome, affecting replacement efficiency and regrinding progress.
The adjustment mechanism replaces screws for fixing, simplifying the chuck installation process, and the auxiliary mechanism collects grinding debris, improving the cleanliness of the working environment.
It improves the speed of drill bit chisel edge replacement and regrinding efficiency, simplifies installation steps, and maintains a clean working environment.
Smart Images
Figure CN224526864U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drill bit chisel edge grinding chucks, and in particular to a self-centering chuck for grinding drill bit chisel edges. Background Technology
[0002] A drill bit chisel edge regrinding chuck is a tool used for drill bit processing or repair. Its main function is to restore the cutting performance of the drill bit by regrinding the chisel edge, and to enable the drill bit to automatically align with the center when chuckled, ensuring the accuracy and consistency of drilling.
[0003] Utility model patent CN210452077U discloses a drill bit grinding machine. Its key technical features include: a switch, a collet, a chuck assembly, a cutting edge grinding groove, a center chisel edge grinding groove, a front cutting edge grinding groove, a tool setting holder, and a positioning adjustment knob. The positioning adjustment knob is located at one end of the drill bit grinding machine, and the center chisel edge grinding groove and the front cutting edge grinding groove are located at the other end. The positioning adjustment knob is near the tool setting holder, and the switch is located above the positioning adjustment knob. The collet is located between the switch and the chuck assembly. The switch, collet, chuck assembly, and cutting edge grinding groove are all located at the top of the drill bit grinding machine, with the cutting edge grinding groove close to the center chisel edge grinding groove and the front cutting edge grinding groove. The switch controls the start or stop of the motor and is connected to a power source via wires to a socket and the motor. The socket has a built-in fuse. This utility model has the advantages of high structural strength and good grinding stability.
[0004] Regarding the above-mentioned issues, the following technical defects exist: The self-centering chuck for grinding the chisel edge of drill bits is a special type of chuck used for grinding the chisel edge of drill bits. Different sizes of chisel edges of drill bits usually require different models of chucks. The chuck uses a screwdriver and screws to fix the chisel edge of the drill bit to the power unit. The fixing method of rotating the screw has a good fixing effect and strong stability. However, the method of rotating the screw with a screwdriver is cumbersome, which will affect the efficiency and speed of changing the chisel edge of the drill bit and affect the progress of grinding the chisel edge of the drill bit.
[0005] Therefore, it is necessary to provide a new type of self-centering chuck for grinding the chisel edge of a drill bit to solve the above-mentioned technical problems. Utility Model Content
[0006] The purpose of this invention is to address the shortcomings of existing technologies where the drill bit's chisel edge is fixed to the power unit using a screw rotation method. While this method provides good fixation and stability, the cumbersome screw-rotation process can affect the efficiency and speed of changing the drill bit's chisel edge and hinder the progress of re-sharpening it.
[0007] To solve the above technical problems, this utility model provides a self-centering chuck for grinding the chisel edge of a drill bit, comprising: a worktable, a control box mounted on one side of the worktable, a lighting device mounted on one side of the control box, two power units mounted on the side of the worktable near the control box, a chuck body mounted on the output end of each power unit, a support platform mounted on the side of the worktable near the power units, and an adjustment mechanism provided on the side of each power unit near the chuck body. The adjustment mechanism includes a fixing ring, which is fixedly connected to one side of the power unit, and a connecting ring slidably connected to one side of the fixing ring. The arc surface of the connecting ring is fixed... The fixed connection has three contact blocks, each of which is an elastic block. A rotating rod is threaded through the inner wall of each contact block. A connecting hole is provided on the fixed ring corresponding to the position of each of the three rotating rods. The three rotating rods are threadedly connected to the inner walls of the three connecting holes respectively. A rotating ring is rotatably connected to the side of the connecting ring away from the fixed ring. Several connecting rods are fixedly connected to one side of the rotating ring. One end of the arc surface of the several connecting rods is fixedly connected to one side of the chuck body. A connecting block is fixedly connected to the side of the chuck body near the power device. A connecting cylinder is slidably connected to the surface of the connecting block. The connecting cylinder is fixedly connected to the output end of the power device.
[0008] The aforementioned components achieve the following effect: The self-centering chuck body for grinding the chisel edge of drill bits is specifically designed for grinding the chisel edge of drill bits. Different sizes of chisel edges typically require different chuck body models. The chuck body uses a screwdriver and screws to fix the chisel edge to the power unit. While this screw-based fixing method provides good stability, it is cumbersome and affects the efficiency and speed of changing the chisel edge, thus hindering the grinding process. An adjustment mechanism can replace the screws for installing the chisel edge, increasing the speed of installation, simplifying the process, and improving the efficiency of installing the chuck body.
[0009] Preferably, a contact pad is fixedly connected to one end of the arc surface of the rotating rod, and the cross-section of the contact pad is circular.
[0010] The effect achieved by the above components is that the contact pad can prevent the rotating rod from directly contacting the contact block, thus avoiding wear.
[0011] Preferably, a plurality of anti-slip grooves are provided at one end of the arc surface of the rotating rod, and the plurality of anti-slip grooves are evenly distributed on the rotating rod.
[0012] The effect achieved by the above components is that the anti-slip groove can increase the friction on the surface of the rotating rod.
[0013] Preferably, a contact ring is fixedly connected to the side of the connecting ring near the fixed ring, and the contact ring is slidably connected to the inner wall of the fixed ring.
[0014] The effect achieved by the above components is that the contact ring can improve the efficiency and speed of aligning the connecting ring and the fixed ring.
[0015] Preferably, an auxiliary mechanism is provided on the side of the support platform away from the workbench. The auxiliary mechanism includes two fixed rods, one end of the arc surface of each of the two fixed rods is fixedly connected to one side of the support platform, and two fixed blocks are slidably connected to the arc surface of the fixed rods. The same connecting frame is fixedly connected to the side of the four fixed blocks that are close to each other. A spring is sleeved on one end of the arc surface of the fixed rod, and the two ends of the spring are fixedly connected to the fixed rod and one of the fixed blocks, respectively. A storage box is slidably connected to the inner wall of the connecting frame.
[0016] The effect achieved by the above-mentioned components is that when the chisel edge of the drill bit is being sharpened, the auxiliary mechanism can collect the generated debris, thereby preventing the debris from scattering on the support table. The auxiliary mechanism can protect the entire working environment and improve cleanliness.
[0017] Preferably, a handle is fixedly connected to one side of the connecting frame.
[0018] The effect achieved by the above components is that the handle can increase the speed of pulling the connecting frame.
[0019] Preferably, a plurality of auxiliary blocks are fixedly connected to one side of the storage box, and the plurality of auxiliary blocks are evenly distributed on one side of the storage box.
[0020] The effect achieved by the above components is that the auxiliary block can assist the storage box in sliding, improving the stability of the storage box sliding on the worktable.
[0021] Compared with related technologies, the self-centering chuck for grinding the chisel edge of a drill bit provided by this utility model has the following beneficial effects:
[0022] This utility model provides a self-centering chuck for grinding the chisel edge of a drill bit. By setting an adjustment mechanism, the chuck can be replaced with a screw when changing the chuck. This adjustment mechanism simplifies the installation process, improves installation efficiency, and allows the chuck to be quickly installed and restored to normal operation.
[0023] By setting up an auxiliary mechanism, when regrinding the chisel edge of the drill bit, the auxiliary mechanism can be used to collect the debris generated during regrinding, preventing the debris from scattering on the support table and affecting the working environment of the entire chisel edge regrinding process. Attached Figure Description
[0024] Figure 1 A schematic diagram of a self-centering chuck for grinding the chisel edge of a drill bit, provided by this utility model;
[0025] Figure 2 for Figure 1 The diagram shows the structure of the adjustment mechanism.
[0026] Figure 3 for Figure 1 A schematic diagram of the disassembled structure of the adjustment mechanism shown;
[0027] Figure 4 for Figure 1 A partially enlarged schematic diagram of the adjustment mechanism is shown.
[0028] Figure 5 for Figure 1 The diagram shows the structure of the auxiliary mechanism.
[0029] Figure 6 for Figure 1 A schematic diagram of the disassembled structure of the auxiliary mechanism shown;
[0030] Figure 7 for Figure 1 The diagram shows a split and enlarged view of the auxiliary mechanism.
[0031] The following are the labeling elements in the diagram: 1. Workbench; 2. Adjustment mechanism; 201. Fixed ring; 202. Connecting hole; 203. Contact block; 204. Connecting ring; 205. Rotating ring; 206. Connecting rod; 207. Rotating rod; 208. Connecting cylinder; 209. Connecting block; 210. Contact pad; 211. Contact ring; 212. Anti-slip groove; 3. Auxiliary mechanism; 31. Connecting frame; 32. Fixed rod; 33. Spring; 34. Fixed block; 35. Storage box; 36. Handle; 37. Auxiliary block; 4. Control box; 5. Lighting equipment; 6. Power unit; 7. Chuck body; 8. Support platform. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0033] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0034] Please see Figures 1 to 7The present invention provides a self-centering chuck for grinding the chisel edge of a drill bit, comprising: a worktable 1, a control box 4 installed on one side of the worktable 1, a lighting device 5 installed on one side of the control box 4, two power units 6 installed on the side of the worktable 1 near the control box 4, a chuck body 7 installed at the output end of the power unit 6, a support platform 8 installed on the side of the worktable 1 near the power unit 6, an adjustment mechanism 2 provided on the side of the power unit 6 near the chuck body 7, and an auxiliary mechanism 3 provided on the side of the support platform 8 away from the worktable 1.
[0035] In the embodiments of this utility model, please refer to Figures 2 to 4 The adjusting mechanism 2 includes a fixed ring 201, which is fixedly connected to one side of the power device 6. A connecting ring 204 is slidably connected to one side of the fixed ring 201. Three contact blocks 203 are fixedly connected to the arc surface of the connecting ring 204. The contact blocks 203 are elastic blocks, and rotating rods 207 are threaded through the inner wall of the contact blocks 203. The fixed ring 201 has connecting holes 202 at the positions corresponding to the three rotating rods 207. The three rotating rods 207 are respectively threaded to the inner wall of the three connecting holes 202. A rotating rod is rotatably connected to the side of the connecting ring 204 away from the fixed ring 201. The rotating ring 205 has several connecting rods 206 fixedly connected to one side. One end of the arc surface of the connecting rods 206 is fixedly connected to one side of the chuck body 7. A connecting block 209 is fixedly connected to the side of the chuck body 7 near the power device 6. A connecting cylinder 208 is slidably connected to the surface of the connecting block 209. The connecting cylinder 208 is fixedly connected to the output end of the power device 6. The drill bit chisel edge grinding self-centering chuck body 7 is a special type of chuck body 7 used for grinding drill bit chisel edges. Different sizes of drill bit chisel edges usually require different models of chuck bodies 7. The chuck body 7 is... A screwdriver, in conjunction with a screw, secures the chisel edge of the drill bit to the power unit 6. While this screw-based fixing method provides good stability, the cumbersome process of turning the screw can affect the efficiency and speed of changing the chisel edge and the progress of re-sharpening it. In this case, the adjusting mechanism 2 can replace the screw for installing the chisel edge. The adjusting mechanism 2 increases the speed of installing the chisel edge, simplifies the process, and improves the efficiency of installing the chuck body 7. A contact pad 210 is fixedly connected to one end of the arc-shaped surface of the rotating rod 207. The cross-section is circular. The contact pad 210 can prevent one side of the rotating rod 207 from directly contacting the contact block 203, thus avoiding wear. Several anti-slip grooves 212 are opened at one end of the arc surface of the rotating rod 207. The anti-slip grooves 212 are evenly distributed on the rotating rod 207. The anti-slip grooves 212 can improve the friction of the surface of the rotating rod 207. The connecting ring 204 is fixedly connected to the side near the fixed ring 201 with a contact ring 211. The contact ring 211 is slidably connected to the inner wall of the fixed ring 201. The contact ring 211 can improve the efficiency and speed of the alignment between the connecting ring 204 and the fixed ring 201.
[0036] In the embodiments of this utility model, please refer to Figures 5 to 7 The auxiliary mechanism 3 includes two fixed rods 32, one end of the arc surface of each fixed rod 32 is fixedly connected to one side of the support platform 8. Two fixed blocks 34 are slidably connected to the arc surface of the fixed rods 32. A common connecting frame 31 is fixedly connected to the side of each of the four fixed blocks 34 that is close to each other. A spring 33 is fitted onto one end of the arc surface of the fixed rod 32. The two ends of the spring 33 are fixedly connected to the fixed rod 32 and one of the fixed blocks 34, respectively. A storage box 35 is slidably connected to the inner wall of the connecting frame 31. When sharpening the chisel edge of the drill bit, the auxiliary mechanism 3... The generated debris can be collected, thereby preventing debris from scattering on the support table 8. The auxiliary mechanism 3 can protect the entire working environment and improve cleanliness. A handle 36 is fixedly connected to one side of the connecting frame 31. The handle 36 can increase the speed of pulling the connecting frame 31. Several auxiliary blocks 37 are fixedly connected to one side of the storage box 35. The auxiliary blocks 37 are evenly distributed on one side of the storage box 35. The auxiliary blocks 37 can assist the storage box 35 in sliding and improve the stability of the storage box 35 sliding on the worktable 1.
[0037] The working principle of the self-centering chuck for grinding the chisel edge of a drill bit provided by this utility model is as follows: When the connecting ring 204 is brought into contact with one side of the fixed ring 201, the surface of the contact block 203 will deform when the contact block 203 comes into contact with the fixed ring 201. At this time, the connecting block 209 will connect with the inner wall of the connecting cylinder 208, and the inner wall of the contact block 203 will be aligned with the inner wall of the connecting hole 202. The rotating rod 207 can then be rotated on the contact block 203 to fix the contact block 203 to the fixed ring 201. At this time, the chuck body 7 can be fixed on the power device 6.
[0038] Pulling the connecting frame 31 causes the fixed block 34 to move, which in turn slides on the fixed rod 32. At this time, the fixed block 34 can stretch the spring 33. The storage box 35 can then be inserted into the connecting frame 31 from the bottom, and the connecting frame 31 can be released. The connecting frame 31 will then move the storage box 35, causing one side of the storage box 35 to contact the upper end of the support platform 8, thus fixing the storage box 35 on the support platform 8.
[0039] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.
[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A self-centering chuck for grinding the chisel edge of a drill bit, characterized in that, include: A workbench (1) is provided. A control box (4) is installed on one side of the workbench (1). A lighting device (5) is installed on one side of the control box (4). Two power units (6) are installed on the side of the workbench (1) near the control box (4). A chuck body (7) is installed at the output end of the power unit (6). A support platform (8) is installed on the side of the workbench (1) near the power unit (6). An adjustment mechanism (2) is provided on the side of the power unit (6) near the chuck body (7). The adjustment mechanism (2) includes a fixing ring (201). The fixing ring (201) is fixedly connected to one side of the power unit (6). A connecting ring (204) is slidably connected to one side of the fixing ring (201). Three contact blocks (203) are fixedly connected to the arc surface of the connecting ring (204). The contact blocks (203) are elastic blocks. The inner wall of the contact block (203) is threaded with a rotating rod (207). The fixed ring (201) is provided with a connecting hole (202) at the position corresponding to the three rotating rods (207). The three rotating rods (207) are threadedly connected to the inner wall of the three connecting holes (202). The side of the connecting ring (204) away from the fixed ring (201) is rotatably connected to a rotating ring (205). A number of connecting rods (206) are fixedly connected to one side of the rotating ring (205). One end of the arc surface of the number of connecting rods (206) is fixedly connected to one side of the chuck body (7). A connecting block (209) is fixedly connected to the side of the chuck body (7) near the power device (6). A connecting cylinder (208) is slidably connected to the surface of the connecting block (209). The connecting cylinder (208) is fixedly connected to the output end of the power device (6).
2. A self-centering chuck for grinding the chisel edge of a drill bit according to claim 1, characterized in that, A contact pad (210) is fixedly connected to one end of the arc surface of the rotating rod (207), and the cross-section of the contact pad (210) is circular.
3. A self-centering chuck for grinding the chisel edge of a drill bit according to claim 1, characterized in that, The rotating rod (207) has several anti-slip grooves (212) at one end of its arc surface, and the several anti-slip grooves (212) are evenly distributed on the rotating rod (207).
4. A self-centering chuck for grinding the chisel edge of a drill bit according to claim 1, characterized in that, A contact ring (211) is fixedly connected to the side of the connecting ring (204) near the fixed ring (201), and the contact ring (211) is slidably connected to the inner wall of the fixed ring (201).
5. A self-centering chuck for grinding the chisel edge of a drill bit according to claim 1, characterized in that, The support platform (8) is provided with an auxiliary mechanism (3) on the side away from the workbench (1). The auxiliary mechanism (3) includes two fixed rods (32). One end of the arc surface of the two fixed rods (32) is fixedly connected to one side of the support platform (8). The arc surface of the fixed rods (32) is slidably connected to two fixed blocks (34). The four fixed blocks (34) are fixedly connected to the same connecting frame (31) on the side close to each other. One end of the arc surface of the fixed rods (32) is fitted with a spring (33). The two ends of the spring (33) are fixedly connected to the fixed rods (32) and one of the fixed blocks (34) respectively. The inner wall of the connecting frame (31) is slidably connected to a storage box (35).
6. A self-centering chuck for grinding the chisel edge of a drill bit according to claim 5, characterized in that, A handle (36) is fixedly connected to one side of the connecting frame (31).
7. A self-centering chuck for grinding the chisel edge of a drill bit according to claim 5, characterized in that, A plurality of auxiliary blocks (37) are fixedly connected to one side of the storage box (35), and the plurality of auxiliary blocks (37) are evenly distributed on one side of the storage box (35).