Replacement structure of drill bit for milling machine

Abstract

The utility model discloses a replacement structure of a drill bit for a milling machine, which relates to the technical field of drill bit replacement and comprises a milling machine body, a servo motor is fixedly mounted at the upper end of the milling machine body, the output end of the servo motor penetrates through the upper end of the milling machine body and is fixedly connected with a fixed block, and a first mounting groove is formed in the fixed block. Two groups of first threaded holes are symmetrically formed in the outer surface of the first mounting groove, mounting rollers are arranged in the first mounting groove, the mounting rollers are taken out from the interiors of the first threaded holes by rotating two first bolts, then the mounting rollers are taken out from the interiors of the first mounting grooves formed in the fixing blocks, and the mounting rollers are taken to proper positions; and a second bolt is rotated to be taken out from the interior of a second threaded hole, a third bolt arranged on the outer surface of a reinforcing roller is rotated to enable a reinforcing plate to move towards the two sides, the drill bit can be detached and replaced, and the situation that the drill bit is passivated after being used for a long time, consequently, the drill bit cannot conduct precise cutting, and the cutting efficiency is reduced is avoided.

Description

Technical Field

[0001] This utility model relates to the field of drill bit replacement technology, specifically to a drill bit replacement structure for milling machines. Background Technology

[0002] Milling machines are widely used machine tools, mainly used for cutting materials such as metals and plastics. They use a rotating drill bit to cut the workpiece. By changing the relative position of the drill bit and the workpiece, various complex machining requirements can be achieved. During use, the drill bit will wear down, and the cutting edge will gradually become dull, resulting in a decrease in drilling quality, a reduction in cutting efficiency, and may even lead to inaccurate drilling dimensions.

[0003] When drill bits become worn, they need to be replaced. However, in existing milling machines, it is inconvenient to replace drill bits, resulting in dull drill bits being unable to cut accurately, which may lead to deviations in hole diameter and position, and reduce cutting efficiency. Based on this, this solution provides a drill bit replacement structure for milling machines to solve the above-mentioned problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, a replacement structure for a milling machine drill bit is provided. This technical solution addresses the issue mentioned in the background art where drill bits need to be replaced after wear. In existing milling machines, it is inconvenient to replace drill bits, resulting in dull drill bits being unable to cut accurately, which may lead to deviations in hole diameter and position, and reduced cutting efficiency.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a replacement structure for a drill bit on a milling machine, comprising a milling machine body, a servo motor fixedly mounted on the upper end of the milling machine body, the output end of the servo motor passing through the upper end of the milling machine body and fixedly connected to a fixing block, a first mounting groove being provided inside the fixing block, two sets of first threaded holes being symmetrically provided on the outer surface of the first mounting groove, a mounting roller being provided inside the first mounting groove, two first threaded grooves being provided inside the mounting roller, a first bolt being threadedly connected to the first threaded groove and the first threaded hole, a first nut being threadedly connected to the end of the first bolt, a second mounting groove being provided at the lower end of the mounting roller, a second threaded hole being symmetrically mounted on the outer surface of the second mounting groove, a first connecting block being symmetrically mounted on the outer surface of the mounting roller, the first connecting block being disposed inside the second threaded hole.

[0006] Preferably, the second threaded hole is internally threaded with a second bolt, and the end of the second bolt is threaded with a second nut.

[0007] Preferably, a drill bit is provided inside the second mounting groove, and the drill bit is installed inside the second mounting groove by a second bolt and nut.

[0008] Preferably, a reinforcing roller is fixedly connected to the lower end of the mounting roller, and a third mounting groove is provided at the lower end of the reinforcing roller, which is connected to the second mounting groove.

[0009] Preferably, the interior of the third mounting slot is symmetrically provided with reinforcing plates, and the outer sides of the two reinforcing plates are fixedly connected with second connecting blocks, and the outer sides of the second connecting blocks are fixedly installed with bearing seats.

[0010] Preferably, the outer surface of the reinforcing roller is symmetrically provided with a second threaded groove, the inner thread of the second threaded groove is connected with a third bolt, a limit groove is provided on the inner side of the second threaded groove, and the inner side of the third bolt is rotatably installed inside the bearing seat.

[0011] Compared with the prior art, this utility model provides a replacement structure for a milling machine drill bit, which has the following features:

[0012] Beneficial effects:

[0013] This invention allows the drill bit to be removed from the inside of the first threaded hole by rotating the two first bolts, and then the mounting roller to be removed from the inside of the first mounting groove opened inside the fixing block. After being moved to a suitable position, the drill bit is removed from the inside of the second threaded hole by rotating the second bolt, and the third bolt set on the outer surface of the reinforcing roller is rotated to move the reinforcing plate to both sides. This allows the drill bit to be disassembled and replaced, avoiding dulling of the drill bit after long-term use, which would prevent the drill bit from cutting accurately and reduce cutting efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the fixing block in this utility model;

[0016] Figure 3 This is a schematic diagram of the structure at the roller mounting point in this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the reinforcing roller in this utility model;

[0018] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle.

[0019] The numbers on the map are:

[0020] 1. Milling machine body; 2. Servo motor; 3. Fixing block; 4. First mounting slot; 5. First threaded hole; 6. First bolt; 7. First nut; 8. Mounting roller; 9. First threaded groove; 10. Second mounting slot; 11. Second threaded hole; 12. First connecting block; 13. Second bolt; 14. Second nut; 15. Drill bit; 16. Reinforcing roller; 17. Third mounting slot; 18. Reinforcing plate; 19. Second connecting block; 20. Bearing seat; 21. Second threaded groove; 22. Third bolt; 23. Limiting groove. Detailed Implementation

[0021] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0022] Reference Figure 1-5 As shown, a drill bit replacement structure for a milling machine includes a milling machine body 1. A servo motor 2 is fixedly mounted on the upper end of the milling machine body 1. The output end of the servo motor 2 passes through the upper end of the milling machine body 1 and is fixedly connected to a fixing block 3. A first mounting groove 4 is formed inside the fixing block 3. Two sets of first threaded holes 5 are symmetrically formed on the outer surface of the first mounting groove 4. A mounting roller 8 is provided inside the first mounting groove 4. Two first threaded grooves 9 are formed inside the mounting roller 8. A first bolt 6 is threadedly connected to the first threaded grooves 9 and the first threaded holes 5. The first threaded grooves 9 and the first threaded holes 5 are aligned. The mounting roller 8 is installed in the first mounting groove 4 inside the fixing block 3 by the first bolt 6. The end of 6 is threaded with a first nut 7. The lower end of the mounting roller 8 is provided with a second mounting groove 10. The outer surface of the second mounting groove 10 is symmetrically provided with a second threaded hole 11. The second threaded hole 11 is located below the first threaded groove 9 and below the fixing block 3. The outer surface of the mounting roller 8 is symmetrically provided with a first connecting block 12. The first connecting block 12 is located inside the second threaded hole 11. The threaded hole inside the first connecting block 12 is aligned with the second threaded hole 11. The inner thread of the second threaded hole 11 is threaded with a second bolt 13. The end of the second bolt 13 is threaded with a second nut 14. The drill bit is fixed inside the second mounting groove by the second bolt 13 and the second nut 14.

[0023] Reference Figure 3-5As shown, a drill bit 15 is installed inside the second mounting groove 10. The drill bit 15 is installed inside the second mounting groove 10 by a second bolt 13 and a nut. A reinforcing roller 16 is fixedly connected to the lower end of the mounting roller 8. A third mounting groove 17 is opened at the lower end of the reinforcing roller 16. The third mounting groove 17 is connected to the second mounting groove 10. The size of the third mounting groove 17 is larger than that of the second mounting groove 10. By rotating the third bolt 22, the reinforcing plate 18 can be driven to further fix the outer surface of the drill bit 15, ensuring the stability of the drill bit 15. To prevent loosening during processing, the interior of the third mounting groove 17 is symmetrically provided with reinforcing plates 18. The inner side of the reinforcing plates 18 is arc-shaped. The outer sides of the two reinforcing plates 18 are fixedly connected with second connecting blocks 19. The outer side of the second connecting blocks 19 is fixedly installed with bearing seats 20. The outer surface of the reinforcing roller 16 is symmetrically provided with second threaded grooves 21. The interior of the second threaded grooves 21 is threaded with third bolts 22. The inner side of the second threaded grooves 21 is provided with limit grooves 23. The inner side of the third bolts 22 is rotatably installed inside the bearing seats 20.

[0024] The working principle and usage process of this utility model are as follows: When it is necessary to replace the drill bit 15 on the milling machine, the drill bit 15 is removed from the inside of the fixing block 3 by rotating the two first bolts 6. At this time, the fixing block 3 can be removed from the inside of the first mounting groove 4, and the drill bit 15 will also be disassembled along with the fixing block 3. After the fixing block 3 is removed and placed in a suitable position, the drill bit 15 is removed from the inside of the mounting roller 8 by rotating the second bolt 13. Then, the two reinforcing plates 18 are moved to the sides by rotating the third bolts 22 on both sides of the outer surface of the reinforcing roller 16. At this time, the drill bit 15 can be removed for replacement, ensuring the sharpness of the drill bit 15, improving cutting efficiency and processing accuracy, and preventing the drill bit 15 from becoming dull or damaged, resulting in inaccurate hole diameter or rough surface.

[0025] 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 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A drill bit replacement structure for a milling machine, characterized in that: The milling machine body (1) is included. A servo motor (2) is fixedly installed on the upper end of the milling machine body (1). The output end of the servo motor (2) passes through the upper end of the milling machine body (1) and is fixedly connected to a fixing block (3). A first mounting groove (4) is opened inside the fixing block (3). Two sets of first threaded holes (5) are symmetrically opened on the outer surface of the first mounting groove (4). An mounting roller (8) is provided inside the first mounting groove (4). Two first threaded grooves (9) are opened inside the mounting roller (8). A first bolt (6) is threadedly connected to the first threaded groove (9) and the first threaded hole (5). A first nut (7) is threadedly connected to the end of the first bolt (6). A second mounting groove (10) is opened at the lower end of the mounting roller (8). A second threaded hole (11) is symmetrically installed on the outer surface of the second mounting groove (10). A first connecting block (12) is symmetrically installed on the outer surface of the mounting roller (8). The first connecting block (12) is located inside the second threaded hole (11).

2. The drill bit replacement structure for a milling machine according to claim 1, characterized in that: The second threaded hole (11) is internally threaded with a second bolt (13), and the end of the second bolt (13) is threaded with a second nut (14).

3. The drill bit replacement structure for a milling machine according to claim 1, characterized in that: The second mounting slot (10) is equipped with a drill bit (15), which is installed inside the second mounting slot (10) by a second bolt (13) and a nut.

4. The drill bit replacement structure for a milling machine according to claim 1, characterized in that: The lower end of the mounting roller (8) is fixedly connected to a reinforcing roller (16), and the lower end of the reinforcing roller (16) is provided with a third mounting groove (17), which is connected to the second mounting groove (10).

5. The drill bit replacement structure for a milling machine according to claim 4, characterized in that: The third mounting slot (17) is symmetrically provided with reinforcing plates (18). The outer sides of the two reinforcing plates (18) are fixedly connected with second connecting blocks (19). The outer sides of the second connecting blocks (19) are fixedly installed with bearing seats (20).

6. The drill bit replacement structure for a milling machine according to claim 4, characterized in that: The outer surface of the reinforcing roller (16) is symmetrically provided with a second threaded groove (21), and a third bolt (22) is threadedly connected inside the second threaded groove (21). A limit groove (23) is provided on the inner side of the second threaded groove (21), and the inner side of the third bolt (22) is rotatably installed inside the bearing seat (20).

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