Drill bit trimming device

Abstract

The utility model relates to a drill bit trimming device which comprises a base, a guide rail, a stepping motor and a moving block in sliding fit with the guide rail are arranged on the base, a rotating groove is formed in the top of the moving block, a rotating shaft is fixedly installed at the top of the rotating groove, and a bearing is installed at one end of the rotating shaft in a sleeved mode. A bearing is arranged on the base, a rotating support is fixedly connected to the bearing, a mounting frame is arranged on the rotating support, a rotatable rotating cylinder is arranged on the mounting frame, a fixing cylinder used for fixing a drill bit is arranged on the rotating cylinder, holding rods are fixedly installed at the two ends of the rotating cylinder, and a grinding disc is fixedly connected to the output end of the stepping motor. The drill bit trimming device is simple in overall structure, convenient to operate, good in practicability, favorable for being used by a green hand, good in working reliability and more favorable for improving the trimming effect of a drill bit.

Description

Technical Field

[0001] The utility model belongs to the technical field of drill bit processing equipment, and in particular relates to a drill bit dressing device. Background Art

[0002] A drill bit is a tool used to make holes or slots in hard materials. It is usually used with an electric drill or other rotary device to remove material by rotating and applying pressure. The design of the drill bit depends on its use and the material to be processed.

[0003] Drill bits are generally made up of two main parts: the cutting edge and the cutting body. The cutting edge is the part that actually cuts the material, while the cutting body is the part that attaches to the drill or other rotating device. The design of the cutting edge depends on the material being processed, such as wood, metal, concrete, etc.

[0004] Why does the drill bit need to be trimmed?

[0005] 1. Wear: The drill bit will wear due to friction with the material during use. Especially when processing hard materials, this wear may be more significant.

[0006] 2. Damage: The drill bit may be damaged due to improper use or contact with unexpected obstacles. This may cause the cutting edge to be missing or deformed, affecting the performance of the drill bit.

[0007] 3. Blockage: When processing some materials, drill cuttings (debris generated during the cutting process) may block the cutting edge and reduce the efficiency of the drill bit. This requires timely cleaning and trimming.

[0008] 4. Thermal damage: Under high-speed rotation and high friction, the drill bit may be damaged due to excessive heating. In this case, the cutting edge may become dull and need to be trimmed to restore its performance.

[0009] Therefore, in order to maintain the effectiveness of the drill bit, regular dressing is necessary. Dressing can include grinding the cutting edge, repairing damaged parts, clearing blockages, and other maintenance measures. This can extend the life of the drill bit, improve work efficiency, and ensure that the processed holes or slots have the required accuracy and quality.

[0010] At present, the drill bit is either polished by an operator holding a drill bit or polished by a trimming device. However, the existing drill bit trimming device has a complex structure and poor practicality, which is not conducive to the use of novices. Utility Model Content

[0011] The utility model aims at at least one technical problem existing in the prior art and provides a drill bit dressing device, which has the advantages of simple structure, convenient operation and good practicality.

[0012] The technical solution of the utility model to solve the above technical problems is as follows:

[0013] A drill bit dressing device comprises a base, on which a guide rail, a stepper motor and a moving block slidably matched with the guide rail are provided, a rotating groove is opened on the top of the moving block, a rotating shaft is fixedly installed on the top of the rotating groove, one end of the rotating shaft is sleeved with a bearing, a rotating bracket is fixedly connected to the bearing, a mounting frame is provided on the rotating bracket, a rotatable rotating cylinder is provided on the mounting frame, a fixed cylinder for fixing the drill bit is provided on the rotating cylinder, grip rods are fixedly installed on both ends of the rotating cylinder, and a grinding disc is fixedly connected to the output end of the stepper motor.

[0014] On the basis of the above technical solution, the present invention can also be improved as follows.

[0015] Furthermore, the moving block is provided with angle scale lines, and the rotating bracket is provided with a pointing head used in conjunction with the angle scale lines.

[0016] Furthermore, the fixed cylinder is connected to a vertically arranged threaded cylinder, the threaded cylinder is threadedly connected to a fixed screw, and the bottom end of the fixed screw is rotatably connected to a clamping block.

[0017] Furthermore, a support block is fixedly mounted on the bottom end of the fixing screw rod, the cross section of the support block is an inverted "T" shape, and an avoidance groove matching the size of the support block is provided on the clamping block.

[0018] Furthermore, a fixed block is fixedly installed on the rotating bracket, the fixed block is rotatably connected to a connecting arm, a cylinder is fixedly installed on the connecting arm, a round block is provided on the cylinder, the round block is rotatably connected to the cylinder and fixed by a locking assembly, and a drill positioning block is fixedly installed on the round block.

[0019] Furthermore, an angle limiting groove is provided on the cylinder, and an angle limiting block is fixedly mounted on the round block.

[0020] The beneficial effects of the utility model are as follows: the utility model fixes the drill bit by means of a fixing tube, changes the position of the drill bit by means of a moving block and a grip rod, and can realize grinding of the drill bit in cooperation with a grinding disc rotating under the action of a stepping motor; in addition, the angle between the drill bit and the grinding disc can be adjusted by rotating the rotating bracket, thereby meeting the requirements of different grinding angles. The device not only has a simple overall structure, is easy to operate, and has good practicality, is convenient for novice users to use, but also has good working reliability, and is more conducive to improving the dressing effect of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a structural schematic diagram of another perspective of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the rotating bracket of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the cylinder and the round block of the utility model;

[0025] Figure 5 It is a schematic diagram of the internal structure of the fixed cylinder of the utility model.

[0026] In the figure: 1. base; 2. guide rail; 3. moving block; 31. angle scale line; 4. rotating groove; 5. rotating shaft; 51. bearing; 6. rotating bracket; 7. pointing head; 8. mounting frame; 81. rotating cylinder; 82. grip rod; 9. fixed cylinder; 10. threaded cylinder; 11. fixed screw; 12. support block; 13. clamping block; 14. fixed block; 15. connecting arm; 16. cylinder; 17. round block; 18. drill bit positioning block; 19. angle limit groove; 20. angle limit block; 21. mounting bracket; 22. stepper motor; 23. grinding disc. DETAILED DESCRIPTION

[0027] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0028] In order to facilitate the understanding of those skilled in the art, the present invention describes the structure with Figure 1 For reference to the drawings, directions such as up, down, front, and back are defined. The direction definition is only for the convenience of description and to facilitate the understanding of the structure of the utility model by those skilled in the art, and does not involve limiting the scope of protection of the utility model.

[0029] like Figure 1-Figure 5 As shown, a drill bit dressing device designed in one embodiment of the utility model comprises a base 1, on which a guide rail 2, a stepper motor 22 and a moving block 3 slidably fitted with the guide rail 2 are provided. A rotating groove 4 is provided on the top of the moving block 3, and a rotating shaft 5 is fixedly installed on the top of the rotating groove 4. A bearing 51 is sleeved on one end of the rotating shaft 5, and a rotating bracket 6 is fixedly connected to the bearing 51. A mounting frame 8 is provided on the rotating bracket 6. A rotatable rotating cylinder 81 is provided on the mounting frame 8. A fixed cylinder 9 for fixing the drill bit is provided on the rotating cylinder 81. A grip rod 82 is fixedly installed on both ends of the rotating cylinder 81. A mounting bracket 21 for fixing the stepper motor 22 is provided on the base 1. A grinding disc 23 is fixedly connected to the output end of the stepper motor 22.

[0030] By adopting the above scheme, the drill bit is fixed by the fixing tube 9, the position of the drill bit is changed by the moving block 3 and the gripping rod 82, and the grinding disc 23 rotates under the action of the stepping motor 22, so that the drill bit can be polished. In addition, by rotating the rotating bracket 6, the angle between the drill bit and the grinding disc 23 can be adjusted, so that the drill bit can be polished at multiple angles. The device is not only simple in overall structure, easy to operate, and has good practicality, which is convenient for novices to use, but also has good working reliability, which is more conducive to improving the finishing effect of the drill bit.

[0031] In the above embodiment, the utility model can also be further improved as follows. In the improved solution, the moving block 3 is provided with an angle scale 31, and the rotating bracket 6 is provided with a pointing head 7 used in conjunction with the angle scale 31, so that the operator can adjust the grinding angle more accurately and quickly, thereby further improving the convenience of operation of the device and the trimming effect of the drill bit.

[0032] In the above embodiment, the utility model can be further improved as follows: In the improved solution, the fixing cylinder 9 is connected to a vertically arranged threaded cylinder 10, the threaded cylinder 10 is threadedly connected to a fixing screw 11, and the bottom end of the fixing screw 11 is rotatably connected to a clamping block 13.

[0033] By adopting the above scheme, the drill bit is effectively clamped and fixed by using the clamping block 13 and the wall of the fixed tube 9. That is, by turning the fixing screw 11, the clamping block 13 is driven to move upward or downward (lift and lower), thereby loosening or tightening the drill bit in the fixed tube 9, which is easy to operate. In addition, this structural design can be applied to drill bits of different diameters within a certain range, and has good adaptability.

[0034] In the above embodiment, the utility model can also be further improved as follows. In the improved solution, a support block 12 is fixedly mounted on the bottom end of the fixed screw 11, the cross section of the support block 12 is an inverted "T" shape, and an avoidance groove matching the size of the support block 12 is provided on the clamping block 13, that is, the clamping block 13 is rotatably connected to the support block 12, so as to realize the rotatable connection between the clamping block 13 and the fixed screw 11, and the structural stability and working reliability are good.

[0035] In the above-mentioned embodiment, the utility model can also be further improved as follows. In the improved scheme, a limit rod (not shown in the figure) is provided on the clamping block 13, the top end of the limit rod passes through the fixed cylinder 9, and a linear bearing (not shown in the figure) used in conjunction with the limit rod is provided on the fixed cylinder 9 to prevent the clamping block 13 from rotating with the fixed screw 11 and the support block 12, thereby further improving the working reliability of the device.

[0036] In the above-mentioned embodiment, the utility model can also be further improved as follows. In the improved scheme, a fixed block 14 is fixedly installed on the rotating bracket 6, and the fixed block 14 is rotatably connected to a connecting arm 15, and a cylinder 16 is fixedly installed on the connecting arm 15, and a round block 17 is arranged on the cylinder 16, and the round block 17 is rotatably connected to the cylinder 16 and fixed by a locking assembly, and a drill bit positioning block 18 is fixedly installed on the round block 17, that is, the drill bit positioning block 18 is provided with a "V"-shaped groove adapted to the drill bit vertex angle size on the side close to the fixed cylinder 9, for example, the drill bit vertex angle and the "V"-shaped groove are both 120°. The locking assembly can be a locking bolt arranged on the cylinder 16, or it can be other existing structures, and its purpose of setting is to lock and fix the round block 17 on the cylinder 16, as long as this purpose can be achieved, it will not be elaborated here.

[0037] By adopting the above scheme, before the clamping block 13 and the fixing tube 9 clamp the drill bit, the drill bit is effectively positioned using the "V"-shaped groove on the drill bit positioning block 18, which is beneficial to improving the trimming accuracy and consistency of the drill bit and greatly reducing the trimming deviation.

[0038] In the above embodiment, the utility model can also be further improved as follows: In the improved solution, an angle limiting groove 19 is provided on the cylinder 16 , and an angle limiting block 20 is fixedly installed on the round block 17 .

[0039] By adopting the above scheme, the angle limit block 20 used in conjunction with the angle limit groove 19 can effectively limit the angle / limit position of the rotation of the round block 17 relative to the cylinder 16, which can further improve the convenience and controllability of operation.

[0040] The working principle (operation process) of this implementation is as follows:

[0041] First, place the drill bit in the fixed tube 9, and move the drill bit toward the positioning block 18 until its head fits into the "V"-shaped groove;

[0042] Then, the fixing screw 11 is turned until the clamping block 13 presses the drill bit in the fixing tube 9, and the connecting arm 15 is rotated until the positioning block 18 is away from the drill bit;

[0043] Finally, turn on the stepper motor 22, slide the moving block 3 along the guide rail 2 to the position of the grinding disk 23, and at the same time hold the handle 82 to rotate the rotating cylinder 81 to guide the drill bit to the grinding disk to achieve trimming; in addition, adjust the angle between the drill bit and the grinding disk 23 by rotating the rotating bracket 6.

[0044] In the present utility model, the devices and components whose structures are not described are all commercially available devices or components.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drill bit dressing device, characterized in that: The invention comprises a base (1), wherein the base (1) is provided with a guide rail (2), a stepper motor (22) and a moving block (3) slidably matched with the guide rail (2), a rotating groove (4) is provided on the top of the moving block (3), a rotating shaft (5) is fixedly mounted on the top of the rotating groove (4), one end of the rotating shaft (5) is sleeved with a bearing (51), a rotating bracket (6) is fixedly connected to the bearing (51), a mounting frame (8) is provided on the rotating bracket (6), a rotatable rotating cylinder (81) is provided on the mounting frame (8), a fixing cylinder (9) for fixing a drill bit is provided on the rotating cylinder (81), gripping rods (82) are fixedly mounted on both ends of the rotating cylinder (81), and a grinding disc (23) is fixedly connected to the output end of the stepper motor (22).

2. A drill bit dressing device according to claim 1, characterized in that: The moving block (3) is provided with an angle scale line (31), and the rotating bracket (6) is provided with a pointing head (7) used in conjunction with the angle scale line (31).

3. A drill bit dressing device according to claim 1, characterized in that: The fixing cylinder (9) is connected to a vertically arranged threaded cylinder (10), the threaded cylinder (10) is threadedly connected to a fixing screw rod (11), and the bottom end of the fixing screw rod (11) is rotatably connected to a clamping block (13).

4. A drill bit dressing device according to claim 3, characterized in that: A support block (12) is fixedly mounted on the bottom end of the fixing screw rod (11); the cross section of the support block (12) is an inverted "T" shape; and the clamping block (13) is provided with an avoidance groove that matches the size of the support block (12).

5. A drill bit dressing device according to claim 1, characterized in that: A fixed block (14) is fixedly mounted on the rotating bracket (6); the fixed block (14) is rotatably connected to a connecting arm (15); a cylinder (16) is fixedly mounted on the connecting arm (15); a round block (17) is provided on the cylinder (16); the round block (17) is rotatably connected to the cylinder (16) and fixed via a locking assembly; a drill bit positioning block (18) is fixedly mounted on the round block (17).

6. A drill bit dressing device according to claim 5, characterized in that: The cylinder (16) is provided with an angle limiting groove (19), and the round block (17) is fixedly mounted with an angle limiting block (20).

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