A drill bit handle polishing tool

Abstract

The utility model relates to the field of drill bit tool, specifically disclose a drill bit drill handle polishing frock, including work bench, drill bit clamping seat and grinding device, clamping structure installs on the work bench, drill bit clamping seat one end sets up first drill bit slot, the bottom of drill bit clamping seat sets up grinding gap, and grinding gap is linked together with first drill bit slot, and grinding device is located below grinding gap, and first drill bit slot bottom sets up step motor, and step motor drives rotary disc, telescopic structure and drill bit clamping disc rotation, and the opening of first drill bit slot sets up the plug, and the plug one end sets up second drill bit slot, and second drill bit slot bottom rotation sets up second rotary disc, and grinding device sets up on the work bench, and sets up linear module control grinding device left and right movement, through setting up drill bit clamping seat, drill bit clamping seat clamps drill bit, then again through grinding device to drill bit and grinds, replaces traditional manual polishing, not only work efficiency is improved, also can control grinding accuracy.

Description

Technical Field

[0001] This utility model relates to the field of drill tools, specifically to a drill bit and drill shank grinding fixture. Background Technology

[0002] A hexagonal twist drill is a type of twist drill with a regular hexagonal shank cross-section. Because of its reliable fixing structure and simple installation, it is the most common and frequently used type of twist drill.

[0003] During the production of hexagonal twist drills, the drill shank needs to be polished to remove burrs and deformations and improve its smoothness. Currently, the polishing method for hexagonal twist drills is generally manual, using sandpaper or grinding wheels to polish the imperfections on the surface of the drill shank. This method is not only inefficient, but also cannot accurately control the polishing precision of all six sides. Therefore, a polishing fixture is needed to replace manual polishing. Utility Model Content

[0004] This utility model aims to solve the technical problems mentioned in the background section above, and proposes the following technical solutions:

[0005] A drill bit and shank grinding fixture includes a worktable, a drill bit holder, and a grinding device. The drill bit holder is mounted on the worktable. One end of the drill bit holder has a first drill bit slot, and the bottom of the drill bit holder has a grinding notch communicating with the first drill bit slot. A stepper motor is fixedly mounted at the bottom of the first drill bit slot, and the stepper motor is connected to a rotating disk. A telescopic structure is connected to the center of one end of the rotating disk. The telescopic structure includes a telescopic sleeve, a telescopic rod, and a spring. The telescopic sleeve is a cylindrical structure with openings at the front and back. One end of the telescopic sleeve is fixed to the rotating disk. The spring is located inside the telescopic sleeve and one end is connected to the rotating disk. One end of the telescopic rod is located inside the telescopic sleeve and connected to the other end of the spring. The other end of the telescopic rod is connected to the drill bit holder. A plug is provided at the opening of the first drill bit slot, and a second drill bit slot is provided at one end of the plug. A second rotating disk is provided at the bottom of the second drill bit slot, and the second rotating disk is rotatably connected to the bottom of the second drill bit slot.

[0006] The workbench has a cavity located below the drill bit holder. The cavity has a notch, the size and position of which correspond to the size and position of the grinding notch. A linear module is installed inside the cavity, and the grinding device is mounted on the linear module. The grinding device includes a grinding roller, a grinding motor, and a roller base. The grinding roller is rotatably connected to the roller base, the grinding motor is connected to the grinding roller, and the roller base is fixed to the linear module.

[0007] Preferably, the drill bit chuck is provided with anti-slip texture.

[0008] Preferably, the cross-section of the second drill bit slot is hexagonal.

[0009] Preferably, the stepper motor rotates at an angle of 60 degrees in one revolution.

[0010] Preferably, a groove is provided on the inner wall of the telescopic sleeve, and a slider is provided on the outer periphery of the telescopic rod, the slider being in the groove and slidably connected to the groove.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model replaces traditional manual grinding by setting up a drill bit holder to hold the drill bit, and then grinding the drill bit with a grinding device. This not only improves work efficiency, but also allows for control of grinding precision.

[0013] 2. By setting anti-slip textures on the drill bit chuck, the drill bit can be prevented from slipping when it is being chuckled.

[0014] 3. By setting a groove on the wall of the telescopic sleeve and a slider on the outer periphery of the telescopic rod, and by sliding the slider and the groove together, the deformation of the spring during the rotation of the telescopic rod caused by the spring can be avoided, which would lead to a deviation in the rotation angle. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 for Figure 1 Enlarged view at point B in the middle;

[0018] Figure 4 This is a schematic diagram of the grinding device of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of Example 2;

[0020] Figure 6 for Figure 5 Enlarged view of the area circled in the middle.

[0021] In the diagram: 1. Workbench; 1-1. Cavity; 1-2. Notch; 2. Drill bit holder; 2-1. First drill bit slot; 2-2. Grinding notch; 3. Grinding device; 3-1. Grinding roller; 3-2. Grinding motor; 3-3. Roller base; 4. Stepper motor; 5. Rotary disk; 6. Telescopic structure; 6-1. Telescopic sleeve; 6-11. Slide groove; 6-2. Telescopic rod; 6-21. Slider; 6-3. Spring; 7. Drill bit holder; 8. Plug; 8-1. Second drill bit slot; 9. Second rotary disk; 10. Linear module; 11. Drill bit. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that relational terms such as "first" and "second" 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. The connection methods described by the terms "fixed connection" and "fixed setting" include, but are not limited to, "welding," "riveting," "adhesion," and "threaded connection." The terms "comprising," "including," or any other variations thereof are intended to cover a 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.

[0024] The terms “upper,” “lower,” “front,” “back,” “left,” “right,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0025] Example 1

[0026] Reference Figure 1-4A drill bit and drill shank grinding fixture includes a worktable 1, a drill bit holder 2, and a grinding device 3. The drill bit holder 2 is mounted on the worktable 1. A first drill bit slot 2-1 is provided at one end of the drill bit holder 2, and a grinding notch 2-2 is provided at the bottom of the drill bit holder 2, which communicates with the first drill bit slot 2-1. A stepper motor 4 is fixedly installed at the bottom of the first drill bit slot 2-1, and the stepper motor 4 is connected to a rotating disk 5. A telescopic structure 6 is connected to the center of one end of the rotating disk 5. The telescopic structure includes a telescopic sleeve 6-1, a telescopic rod 6-2, and a spring 6-3. The telescopic sleeve 6-1 is open at both the front and rear. The structure is cylindrical. One end of the telescopic sleeve 6-1 is fixed on the rotating disk 5. The spring 6-3 is located inside the telescopic sleeve 6-1 and one end is connected to the rotating disk 5. One end of the telescopic rod 6-2 is located inside the telescopic sleeve 6-1 and is connected to the other end of the spring 6-3. The other end of the telescopic rod 6-2 is connected to the drill bit holding disk 7. A plug 8 is provided at the opening of the first drill bit slot 2-1 and the plug 8 is snapped into the first drill bit slot 2-1. A second drill bit slot 8-1 is provided at one end of the plug 8. A second rotating disk 9 is provided at the bottom of the second drill bit slot 8-1 and is rotatably connected to the bottom of the second drill bit slot 8-1.

[0027] A cavity 1-1 is provided on the workbench 1, which is located below the drill bit holder 2. A notch 1-2 is provided on the cavity 1-1, and the size and position of the notch 1-2 correspond to the size and position of the grinding notch 2-2. A linear module 10 is provided inside the cavity 1-1, and a grinding device 3 is installed on the linear module 10. The grinding device 3 includes a grinding roller 3-1, a grinding motor 3-2, and a roller base 3-3. The grinding roller 3-1 is rotatably connected to the roller base 3-3, the grinding motor 3-2 is connected to the grinding roller 3-1, and the roller base 3-3 is fixed on the linear module 10.

[0028] Preferably, the drill bit chuck 7 is provided with anti-slip texture.

[0029] Preferably, the cross-section of the second drill bit slot 8-1 is a hexagonal structure.

[0030] Preferably, the stepper motor 4 rotates at an angle of 60 degrees in one revolution.

[0031] In actual operation, S1, put one end of the drill bit 11 to be ground into the second drill bit slot 8-1 of the plug 8, and then insert one end of the drill shank into the first drill bit slot 2-1. During the insertion process, make the plane of the hexagonal drill shank face down. At this time, the drill shank contacts the drill bit holding plate 7 and continuously push the plug 8 towards one end of the drill shank until the plug 8 is completely submerged in the first drill bit slot 2-1 and stuck in the first drill bit slot 2-1. During this process, the spring 6-3 will be continuously compressed to move the telescopic rod 6-2 towards the motor.

[0032] S2. At this time, start the grinding motor 3-2 and the linear module 10. The grinding motor 3-2 drives the grinding roller 3-1 to rotate and grind the drill shank of the drill bit 11. The linear module 10 can make the grinding more uniform by driving the grinding device 3 to move back and forth.

[0033] S3. After one side of the drill bit 11 is polished, start the stepper motor 4. The stepper motor 4 drives the rotating disk 5 to rotate 60°, and the drill bit 11 also rotates 60°. Then continue to use the grinding device 3 to polish, and so on, until all six sides are polished.

[0034] Example 2

[0035] Reference Figure 5-6 This embodiment aims to address the problem in Embodiment 1 where, when the stepper motor 4 drives the rotating disk 5, the spring 6-3 deforms, causing a deviation in the rotation angle of the telescopic rod 6-2. The following solution is proposed: a groove 6-11 is provided on the inner wall of the telescopic sleeve 6-1, and a slider 6-21 is provided on the outer periphery of the telescopic rod 6-2. The slider 6-21 is within and slidably connected to the groove 6-11. Through this sliding connection, the telescopic sleeve 6-1 rotates synchronously with the telescopic rod 6-2, avoiding the deviation in rotation angle caused by the spring 6-3 driving the telescopic rod 6-2 to rotate.

Claims

1. A drill bit and drill shank grinding fixture, comprising a worktable (1), a drill bit holder (2), and a grinding device (3), characterized in that, The drill bit holder (2) is mounted on the workbench (1). One end of the drill bit holder (2) is provided with a first drill bit slot (2-1). The bottom of the drill bit holder (2) is provided with a grinding notch (2-2), which communicates with the first drill bit slot (2-1). A stepper motor (4) is fixedly installed at the bottom of the first drill bit slot (2-1). The stepper motor (4) is connected to a rotating disk (5). A telescopic structure (6) is connected to the center of one end of the rotating disk (5). The telescopic structure includes a telescopic sleeve (6-1), a telescopic rod (6-2), and a spring (6-3). The telescopic sleeve (6-1) is a cylindrical structure with openings at the front and back. One end of the telescopic sleeve (6-1) is fixed on the rotating disk (5). The spring (6-3) is located inside the telescopic sleeve (6-1) and one end is connected to the rotating disk (5). One end of the telescopic rod (6-2) is located inside the telescopic sleeve (6-1) and is connected to the other end of the spring (6-3). The other end of the telescopic rod (6-2) is connected to a drill bit holding disk (7). A plug (8) is provided at the opening of the first drill bit slot (2-1). A second drill bit slot (8-1) is provided at one end of the plug (8). A second rotating disk (9) is provided at the bottom of the second drill bit slot (8-1). The second rotating disk (9) is rotatably connected to the bottom of the second drill bit slot (8-1). A cavity (1-1) is provided on the workbench (1). The cavity (1-1) is located below the drill bit holder (2). A notch (1-2) is provided on the cavity (1-1). The size and position of the notch (1-2) correspond to the size and position of the grinding notch (2-2). A linear module (10) is provided inside the cavity (1-1). The grinding device (3) is installed on the linear module (10). The grinding device (3) includes a grinding roller (3-1), a grinding motor (3-2), and a roller base (3-3). The grinding roller (3-1) is rotatably connected to the roller base (3-3). The grinding motor (3-2) is connected to the grinding roller (3-1). The roller base (3-3) is fixed on the linear module (10).

2. The drill bit and drill shank grinding fixture according to claim 1, characterized in that, The drill bit chuck (7) is provided with anti-slip texture.

3. The drill bit and drill shank grinding fixture according to claim 2, characterized in that, The second drill bit slot (8-1) has a hexagonal cross-section.

4. The drill bit and drill shank grinding fixture according to claim 3, characterized in that, The stepper motor (4) rotates at an angle of 60 degrees in one rotation.

5. The drill bit and drill shank grinding fixture according to claim 1, characterized in that, The inner wall of the telescopic sleeve (6-1) is provided with a sliding groove (6-11), and the outer periphery of the telescopic rod (6-2) is provided with a slider (6-21). The slider (6-21) is in the sliding groove (6-11) and is slidably connected to the sliding groove (6-11).

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