A flexible vibration polishing device for blunt treatment of a flute edge of a twist drill

Abstract

The utility model relates to related technical field of flexible polishing equipment especially, a kind of flexible vibration polishing device of twist drill edge passivation treatment, including stand, the upper end fixed mounting of stand workbench, the lower surface of workbench is fixedly installed with spring at equal intervals, the lower end of spring is fixedly connected with connecting ring, the lower surface both sides of connecting ring are fixedly installed with vibration motor, the inner ring of connecting ring is fixedly installed with polishing barrel.This flexible vibration polishing device of twist drill edge passivation treatment, by vibration motor drive polishing barrel vibration, in combination in the polishing barrel is put into the quantitative flexible abrasive, the realization even passivation of edge, improve edge sharpness and wear resistance, by the cooperation of first adjusting plate second adjusting plate and clamping plate, different sizes of twist drill can be adapted, improve the versatility of device, by the cooperation of moving platform and guide rail, the continuous polishing of multiple groups of twist drill can be realized.

Description

Technical Field

[0001] This utility model relates to the technical field of flexible polishing equipment, and in particular to a flexible vibration polishing device for passivating the cutting edge of a twist drill. Background Technology

[0002] The flexible vibration polishing equipment used in the passivation treatment of twist drill cutting edges is mainly for fine surface finishing of the drill bit cutting edges to improve the sharpness, wear resistance and service life of the cutting edges. The flexible vibration polishing process for passivation treatment of twist drill cutting edges is a precision surface treatment process that combines mechanical vibration, flexible abrasive and process parameter optimization. It is mainly used to achieve passivation (rounding), deburring and surface finishing of the cutting edges, thereby improving the cutting performance, life and reliability of the drill bit. Therefore, a flexible vibration polishing device for passivation treatment of twist drill cutting edges is needed.

[0003] Existing flexible vibration polishing devices for passivating twist drill cutting edges have a relatively limited approach to edge treatment. They typically process only one type of twist drill, requiring individual replacements, which results in slow processing efficiency.

[0004] To address the aforementioned issues, a search revealed a patent with publication number CN221048000U that discloses a twist drill bit polishing device. The patent describes a device where "a first slot and a second slot are respectively provided on the side of the second telescopic layer. A first spring and a second spring are hinged inside both the first and second slots. The ends of both the first and second slots are rounded. A groove is provided inside the first support column, and a second motor is installed within the groove. The second motor controls a rotating block, which drives the twist drill bit to rotate and polish. The polishing hole shape is approximately the same as the twist drill bit shape. The drill bit engagement hole is a hexagonal hole, and its shape is consistent with one side of the twist drill bit." While the twist drill bit can be installed through the engagement hole, which matches its shape, a single processing platform can only process one set of twist drill bits at a time. Compared to flexible polishing equipment, this method is slower and more complex.

[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 utility model is to provide a flexible vibration polishing device for passivating the cutting edge of a twist drill, in order to solve the problem mentioned in the background art that the existing flexible vibration polishing device for passivating the cutting edge of a twist drill has a relatively tight installation between the inner liner and the outer shell of the oven, making it difficult to clean directly when the inside is stained with oil, and excessive oil stains inside will affect the performance of the oven.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a flexible vibration polishing device for passivating the cutting edge of a twist drill, comprising a column, a worktable fixedly mounted on the upper end of the column, springs fixedly mounted at equal intervals on the lower surface of the worktable, a connecting ring fixedly connected to the lower end of each spring, a vibration motor fixedly mounted on both sides of the lower surface of the connecting ring, a polishing barrel fixedly mounted on the inner ring of the connecting ring, a guide rail fixedly mounted on the upper surface of the worktable, a moving platform disposed above the guide rail, a guide wheel fitted with a groove in the guide rail mounted below the moving platform, first support blocks fixedly mounted on both sides of the upper surface of the moving platform, a connecting rod penetrating one side of the first support block, a nut threadedly connected to one end of the connecting rod, a first adjusting plate sleeved on the outer ring of the connecting rod, second support blocks fixedly mounted on both sides of one end of the first adjusting plate, a second adjusting plate disposed at one end of the second support block, a fixing block fixedly mounted at one end of the second adjusting plate, a T-slot formed on one side surface of the fixing block, a slider slidably connected to one end of the T-slot, and a clamping plate fixedly connected to one end of the slider.

[0008] Preferably, the inner surface of the worktable has a limiting groove, and the outer surface of the polishing barrel is welded with a limiting block that is slidably connected to the limiting groove.

[0009] Preferably, an external gear ring is fixedly fitted around the outer ring of the guide rail, and a drive motor is fixedly installed on one side of the upper surface of the moving platform. A gear that meshes with the external gear ring is fixedly installed at the output end of the drive motor.

[0010] Preferably, the connecting rod consists of a threaded section and a connecting section, the threaded section being threadedly connected to the nut, and the connecting section being connected to the first adjusting plate.

[0011] Preferably, there are two sets of connecting rods and nuts, and the other set of connecting rods and nuts is used for connecting and locking the second adjusting plate and the second support block.

[0012] Preferably, the clamping plates are provided in two sets, one set of which is fixedly connected to the slider, and the other set of clamping plates is symmetrically arranged and fixed to the surface of the fixing block.

[0013] Preferably, a side plate is fixedly installed on one side surface of the fixing block, and a threaded rod is threaded through and threaded to one side of the side plate, with one end of the threaded rod corresponding to the position of the clamping plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This flexible vibration polishing device for dulling the cutting edge of twist drills uses a vibration motor to drive the polishing barrel to vibrate. Combined with the placement of a certain amount of flexible abrasive in the polishing barrel, it achieves uniform dulling of the cutting edge, improving the sharpness and wear resistance of the cutting edge. Through the cooperation of the first adjustment plate, the second adjustment plate, and the clamping plate, it can adapt to twist drills of different sizes, improving the versatility of the device. Through the cooperation of the moving platform and the guide rail, it can realize the continuous polishing of multiple sets of twist drills, avoiding the inefficiency of replacing each one individually in traditional devices. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall appearance and structure of the present utility model;

[0016] Figure 2 This is a schematic diagram of the workbench and polishing barrel of this utility model;

[0017] Figure 3 This is a schematic diagram of the working table and spring working together in this utility model;

[0018] Figure 4 This is a schematic diagram of the structure in which the guide rail and the mobile platform of this utility model cooperate with each other;

[0019] Figure 5 This is a schematic diagram of the interlocking structure of the clamping plate and the threaded rod of this utility model;

[0020] Figure 6 This is a schematic diagram of the structure in which the first adjusting plate and the connecting rod of this utility model cooperate with each other.

[0021] In the diagram: 1. Column; 2. Workbench; 3. Spring; 4. Limiting groove; 5. Connecting ring; 6. Vibration motor; 7. Polishing barrel; 8. Limiting block; 9. Guide rail; 10. Moving platform; 11. Guide wheel; 12. External gear ring; 13. Drive motor; 14. Gear; 15. First support block; 16. Connecting rod; 17. Nut; 18. First adjusting plate; 19. Second support block; 20. Second adjusting plate; 21. Fixing block; 22. T-slot; 23. Slider; 24. Clamping plate; 25. Side plate; 26. Threaded rod. 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 flexible vibration polishing device for passivating the cutting edge of a twist drill, comprising a column 1, a worktable 2 fixedly mounted on the upper end of the column 1, springs 3 fixedly mounted at equal intervals on the lower surface of the worktable 2, a connecting ring 5 fixedly connected to the lower end of the springs 3, vibration motors 6 fixedly mounted on both sides of the lower surface of the connecting ring 5, a polishing barrel 7 fixedly mounted on the inner ring of the connecting ring 5, a guide rail 9 fixedly mounted on the upper surface of the worktable 2, a moving platform 10 disposed above the guide rail 9, and guide wheels 11 fitted with the grooves of the guide rail 9 mounted below the moving platform 10. A first support block 15 is fixedly installed on both sides of the upper surface of 0. A connecting rod 16 passes through one side of the first support block 15. A nut 17 is threaded to one end of the connecting rod 16. A first adjusting plate 18 is sleeved on the outer ring of the connecting rod 16. A second support block 19 is fixedly installed on both sides of one end of the first adjusting plate 18. A second adjusting plate 20 is provided at one end of the second support block 19. A fixing block 21 is fixedly installed at one end of the second adjusting plate 20. A T-slot 22 is opened on one side surface of the fixing block 21. A slider 23 is slidably connected to one end of the T-slot 22. A clamping plate 24 is fixedly connected to one end of the slider 23.

[0024] Furthermore, a limiting groove 4 is formed on the inner ring surface of the worktable 2, and a limiting block 8 is welded to the outer ring surface of the polishing barrel 7 and slidably connected to the limiting groove 4. Through the setting of the limiting groove 4 and the limiting block 8, the limiting block 8 is welded to the outer ring of the polishing barrel 7 and slidably connected to the limiting groove 4 of the worktable 2, which restricts the lateral movement of the polishing barrel 7 and only allows vertical vibration, preventing the polishing barrel 7 from shifting during vibration and ensuring the stability of the polishing process.

[0025] Furthermore, an external gear ring 12 is fixedly fitted around the outer ring of the guide rail 9, and a drive motor 13 is fixedly installed on one side of the upper surface of the moving platform 10. A gear 14 that meshes with the external gear ring 12 is fixedly installed at the output end of the drive motor 13. Through the arrangement of the drive motor 13, the gear 14 and the external gear ring 12, the drive motor 13 drives the gear 14 to rotate. The gear 14 meshes with the external gear ring 12, so that the moving platform 10 moves smoothly along the guide rail 9, ensuring that the twist drill is evenly stressed in the polishing barrel 7, realizing automatic feeding of the moving platform 10 and improving polishing efficiency.

[0026] Furthermore, the connecting rod 16 consists of a threaded section and a connecting section. The threaded section is threadedly connected to the nut 17, and the connecting section is connected to the first adjusting plate 18. With the setting of the connecting rod 16, the first adjusting plate 18 can be sleeved on the outer ring of the connecting rod 16. The connecting rod 16 can rotate at one end of the first support block 15. At the same time, when the nut 17 is tightened at one end of the connecting rod 16, it fits tightly with the first support block 15, thereby fixing the connecting rod 16 and fixing the angle of the first adjusting plate 18.

[0027] Furthermore, two sets of connecting rods 16 and nuts 17 are provided, and another set of connecting rods 16 and nuts 17 is used to connect and lock the second adjusting plate 20 and the second support block 19. With the setting of the second adjusting plate 20, the second adjusting plate 20 and the first adjusting plate 18 cooperate with each other and can rotate to adjust different heights. After installing the twist drill, the height is adjusted according to the position of the twist drill cutting edge so that the cutting edge can fully contact the flexible abrasive.

[0028] Furthermore, two sets of clamping plates 24 are provided. One set of clamping plates 24 is fixedly connected to the slider 23, and the other set of clamping plates 24 is symmetrically arranged and fixed on the surface of the fixing block 21. By setting the clamping plates 24, when the threaded rod 26 rotates, it pushes the clamping plates 24 to slide in the T-slot 22, adjusts the spacing of the clamping plates 24 to adapt to different sizes of twist drills, and prevents the drill bit from shaking during the polishing process.

[0029] Furthermore, a side plate 25 is fixedly installed on one side surface of the fixing block 21. A threaded rod 26 is threaded through and threaded to one side of the side plate 25. One end of the threaded rod 26 corresponds to the position of the clamping plate 24. Through the setting of the threaded rod 26, the threaded connection between the threaded rod 26 and the side plate 25 can tighten and fix the clamping plate 24.

[0030] Working principle: First, flexible abrasive, such as ceramic abrasive, is added into the polishing barrel 7. Then, according to the size of the twist drill, the spacing of the clamping plates 24 is adjusted by rotating the threaded rod 26 to securely clamp the twist drill. Next, the first adjusting plate 18 and the second adjusting plate 20 are adjusted so that the position of the twist drill cutting edge contacts the flexible abrasive in the polishing barrel 7. Then, the vibration motor 6 drives the connecting ring 5 and the polishing barrel 7 to vibrate. The flexible abrasive in the polishing barrel 7 blunts the cutting edge of the twist drill. At the same time, the limiting block 8 slides in the limiting groove 4 so that the polishing barrel 7 vibrates only vertically. Then, the drive motor 13 drives the gear 14 to rotate. The gear 14 meshes with the outer gear ring 12, so that the moving platform 10 moves smoothly along the guide rail 9. The moving platform 10 drives the twist drill to rotate along the inner ring of the polishing barrel 7, so that the twist drill cutting edge contacts the flexible abrasive and achieves cutting edge blunting.

[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 flexible vibration polishing device for passivating the cutting edge of a twist drill, comprising a column (1), characterized in that: A workbench (2) is fixedly installed on the upper end of the column (1). Springs (3) are fixedly installed at equal intervals on the lower surface of the workbench (2). A connecting ring (5) is fixedly connected to the lower end of the spring (3). Vibration motors (6) are fixedly installed on both sides of the lower surface of the connecting ring (5). A polishing barrel (7) is fixedly installed on the inner ring of the connecting ring (5). A guide rail (9) is fixedly installed on the upper surface of the workbench (2). A moving platform (10) is set above the guide rail (9). A guide wheel (11) that fits into the groove of the guide rail (9) is installed below the moving platform (10). First support blocks (15) are fixedly installed on both sides of the upper surface of the moving platform (10). A connecting rod (16) runs through one side of the first support block (15). A nut (17) is threaded onto one end of the connecting rod (16). A first adjusting plate (18) is fitted around the outer ring of the connecting rod (16). A second support block (19) is fixedly installed on both sides of one end of the first adjusting plate (18). A second adjusting plate (20) is provided at one end of the second support block (19). A fixing block (21) is fixedly installed at one end of the second adjusting plate (20). A T-slot (22) is opened on one side surface of the fixing block (21). A slider (23) is slidably connected to one end of the T-slot (22). A clamping plate (24) is fixedly connected to one end of the slider (23).

2. The flexible vibration polishing device for passivating the cutting edge of a twist drill according to claim 1, characterized in that: The inner surface of the workbench (2) has a limiting groove (4), and the outer surface of the polishing barrel (7) is welded with a limiting block (8) that is slidably connected to the limiting groove (4).

3. The flexible vibration polishing device for passivating the cutting edge of a twist drill according to claim 1, characterized in that: An external gear ring (12) is fixedly fitted around the outer ring of the guide rail (9). A drive motor (13) is fixedly installed on one side of the upper surface of the moving platform (10). A gear (14) that meshes with the external gear ring (12) is fixedly installed at the output end of the drive motor (13).

4. The flexible vibration polishing device for passivating the cutting edge of a twist drill according to claim 1, characterized in that: The connecting rod (16) consists of a threaded section and a connecting section. The threaded section is threadedly connected to the nut (17), and the connecting section is connected to the first adjusting plate (18).

5. The flexible vibration polishing device for passivating the cutting edge of a twist drill according to claim 1, characterized in that: The connecting rod (16) and nut (17) are provided in two sets, and the other set of connecting rod (16) and nut (17) is used for connecting and locking the second adjusting plate (20) and the second support block (19).

6. The flexible vibration polishing device for passivating the cutting edge of a twist drill according to claim 1, characterized in that: The clamping plate (24) is provided in two sets. One set of the clamping plate (24) is fixedly connected to the slider (23), and the other set of the clamping plate (24) is symmetrically arranged and fixed on the surface of the fixing block (21).

7. The flexible vibration polishing device for passivating the cutting edge of a twist drill according to claim 1, characterized in that: A side plate (25) is fixedly installed on one side surface of the fixing block (21), and a threaded rod (26) is threaded through and threaded to one side of the side plate (25), with one end of the threaded rod (26) corresponding to the position of the clamping plate (24).

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