Multi-angle adjustable drill bit grinding machine work head

Abstract

The utility model discloses a multi -angle adjustable drill needle grinding machine work head, including base, mounting seat, first motor, abrasive disc, second motor and chuck, mounting seat is on the base linear sliding, and first motor is installed in mounting seat, and abrasive disc is connected on the output shaft of first motor, the chuck is fixedly arranged on the output shaft of second motor, and the chuck clamps the drill needle, be provided with the thrust centripetal roller bearing on the base, and the rotary ring of thrust centripetal roller bearing is connected with the mounting disc, and the second motor is set up on the mounting disc, and the fixed ring of thrust centripetal roller bearing is fixedly connected with the base through first bolt. Compared with prior art, the utility model has the beneficial effects that: through the rotation of mounting disc on thrust centripetal roller bearing, drive second motor to rotate, thereby adjust the angle of drill needle in the horizontal plane. Without stopping, can reach the purpose of grinding in multiple angle range through the rotation of mounting disc.

Description

Technical Field

[0001] This utility model relates to a multi-angle adjustable drill bit grinding machine working head, belonging to the field of drill bit grinding technology. Background Technology

[0002] After a period of use, drill bits often develop problems such as chipping at the head, uneven rake angle of the main cutting edge, and excessively long chisel edges, leading to high axial resistance and difficulty in chip removal. Grinding can optimize their cutting performance, extend their service life, and meet machining requirements. However, existing grinding equipment has shortcomings. During grinding, the angle between the drill bit and the grinding disc is fixed. When the machine stops, the angle between the drill bit and the grinding disc must be manually adjusted before grinding can continue. This requires multiple adjustments of the drill bit angle to complete the grinding process. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a multi-angle adjustable drill bit grinding machine head. The angle between the drill bit and the grinding disc can be adjusted during grinding.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a multi-angle adjustable drill bit grinding machine working head, including a base, a mounting base, a first motor, a grinding disc, a second motor, and a chuck. The mounting base slides linearly on the base, the first motor is installed in the mounting base, and the grinding disc is connected to the output shaft of the first motor. The chuck is fixedly installed on the output shaft of the second motor, and the drill bit is clamped in the chuck. A thrust radial roller bearing is provided on the base, and a mounting disc is connected to the rotating ring of the thrust radial roller bearing. The second motor is installed on the mounting disc, and the fixing ring of the thrust radial roller bearing is fixedly connected to the base by a first bolt.

[0005] A further feature of this invention is that a third handle is connected to the edge of the mounting plate.

[0006] The present invention is further configured such that: a pair of sliding grooves are provided on the upper surface of the base, a slider is slidably disposed in the sliding grooves, and the slider is fixedly connected to the mounting base; a support frame is fixedly connected to the end of the base, a nut seat is provided in the support frame, a screw rod is screwed into the nut seat, one end of the screw rod is rotatably connected to the side of the base through a first rotating seat, and the other end is provided with a through hole, into which a first hand rod is inserted.

[0007] The present invention is further configured such that: a second bolt is connected to the base, an eccentric wheel is sleeved on the second bolt, and a second handle is connected to the edge of the eccentric wheel; after the eccentric wheel rotates around the second bolt, it meshes with the side of the rotating ring of the thrust radial roller bearing.

[0008] The present invention is further configured such that: a clamp is provided on the second motor, and a grinding fluid tube is connected in the clamp, with the port of the grinding fluid tube facing the drill bit.

[0009] A further feature of this invention is that a protective cover is provided on the edge of the mounting base, and the protective cover surrounds the grinding disc.

[0010] Compared with existing technologies, the advantages of this invention are as follows: By pushing the mounting base in a linear motion until the grinding disc contacts the drill bit for grinding, the mounting plate rotates on a thrust radial roller bearing, driving the second motor to rotate and thus adjusting the angle of the drill bit in the horizontal plane. By starting the second motor, the chuck and drill bit rotate together, and the drill bit grinds against the grinding disc. Grinding can be achieved within multiple angle ranges by rotating the mounting plate without stopping the machine, thus completing the grinding work more quickly. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the working head of a multi-angle adjustable drill bit grinding machine, as shown in a preferred embodiment of the present invention.

[0012] In the diagram: 1. Base; 2. Slide groove; 3. Slider; 4. Mounting seat; 5. Protective cover; 6. Grinding disc; 7. Lead screw; 8. First rotating seat; 9. Support frame; 10. Nut seat; 11. Through hole; 12. First lever; 13. Thrust radial roller bearing; 14. First bolt; 15. Second motor; 16. Clamp; 17. Grinding fluid pipe; 18. Chuck; 19. Drill bit; 20. Third lever; 21. Second bolt; 22. Eccentric wheel; 23. Second lever; 24. First motor; 25. Mounting plate. Detailed Implementation

[0013] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0014] See appendix Figure 1As shown, this embodiment of a multi-angle adjustable drill bit grinding machine working head includes a base 1, a mounting base 4, a first motor 24, a grinding disc 6, a second motor 15, and a chuck 18. The mounting base 4 slides linearly on the base 1. The first motor 24 is mounted in the mounting base 4, and the grinding disc 6 is connected to the output shaft of the first motor 24. The chuck 18 is fixedly mounted on the output shaft of the second motor 15, and the drill bit 19 is clamped in the chuck 18. A thrust radial roller bearing 13 is provided on the base 1. A mounting plate 25 is connected to the rotating ring of the thrust radial roller bearing 13. The second motor 15 is mounted on the mounting plate 25. The fixing ring of the thrust radial roller bearing 13 is fixedly connected to the base 1 by a first bolt 14. The thrust radial roller bearing 13 can be a bearing in the prior art, such as the thrust radial roller bearing disclosed in Chinese Patent CN119985493A, which is also applicable to this patent. It has high precision, with an error of no more than two μm. Its specific structure will not be described in detail.

[0015] A third lever 20 is connected to the edge of the mounting plate 25. A pair of sliding grooves 2 are provided on the upper surface of the base 1, in which a slider 3 is slidably mounted. The slider 3 is fixedly connected to the mounting base 4. A support frame 9 is fixedly connected to the end of the base 1. A nut seat 10 is provided in the support frame 9, and a lead screw 7 is screwed into the nut seat 10. One end of the lead screw 7 is rotatably connected to the side of the base 1 via a first rotating seat 8, and the other end has a through hole 11 into which a first lever 12 is inserted. A second bolt 21 is also connected to the base 1. An eccentric wheel 22 is sleeved on the second bolt 21, and a second lever 23 is connected to the edge of the eccentric wheel 22. After rotating around the second bolt 21, the eccentric wheel 22 meshes with the side of the rotating ring of the thrust radial roller bearing 13. A clamp 16 is provided on the second motor 15, and a grinding fluid pipe 17 is connected to the clamp 16. The port of the grinding fluid pipe 17 faces the drill bit 19. The edge of the mounting base 4 is provided with a protective cover 5, which surrounds the grinding disc 6.

[0016] In summary, the method of using the multi-angle adjustable drill bit grinding machine working head shown in this utility model is as follows: Rotating the lead screw 7 via the first lever 12 causes the lead screw 7, which is screwed to the nut seat 10, to push the mounting base 4 along the axis, moving in a straight line until the grinding disc 6 contacts and grinds the drill bit 19. The protective cover 5 prevents debris generated during the grinding process. Preferably, the support frame 9 is positioned between a pair of sliding grooves 2. Pushing the third lever 20 causes the mounting plate 25 to rotate on the thrust radial roller bearing 13, thereby driving the second motor 15 to rotate, achieving the purpose of adjusting the angle of the drill bit 19 in the horizontal plane. By starting the second motor 15, the chuck 18 and the drill bit 19 rotate together, and the drill bit 19 grinds against the grinding disc 6. Grinding can be achieved within multiple angle ranges by rotating the mounting plate 25 without stopping the machine, thus completing the grinding work more quickly. Pushing the second lever 23 causes the eccentric wheel 22 to rotate around the second bolt 21 until the eccentric wheel 22 engages with the rotating ring of the thrust radial roller bearing 13, preventing the rotating ring of the thrust radial roller bearing 13 from rotating and thus achieving the purpose of locking the angle. Grinding fluid is sprayed out through the grinding fluid pipe 17 to reduce the temperature of the drill bit 19.

[0017] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A multi-angle adjustable drill bit grinding machine working head, comprising a base (1), a mounting base (4), a first motor (24), a grinding disc (6), a second motor (15), and a chuck (18). The mounting base (4) slides linearly on the base (1). The first motor (24) is mounted in the mounting base (4). The grinding disc (6) is connected to the output shaft of the first motor (24). The chuck (18) is fixedly mounted on the output shaft of the second motor (15). The drill bit (19) is clamped in the chuck (18). Its features are, A thrust radial roller bearing (13) is provided on the base (1). A mounting plate (25) is connected to the rotating ring of the thrust radial roller bearing (13). The second motor (15) is provided on the mounting plate (25). The fixing ring of the thrust radial roller bearing (13) is fixedly connected to the base (1) by the first bolt (14).

2. The multi-angle adjustable drill bit grinding machine working head according to claim 1, characterized in that, A third lever (20) is connected to the edge of the mounting plate (25).

3. The multi-angle adjustable drill bit grinding machine working head according to claim 2, characterized in that, The upper surface of the base (1) is provided with a pair of sliding grooves (2), and a slider (3) is slidably arranged in the sliding grooves (2). The slider (3) is fixedly connected to the mounting seat (4). A support frame (9) is fixedly connected to the end of the base (1). A nut seat (10) is provided in the support frame (9). A screw rod (7) is screwed into the nut seat (10). One end of the screw rod (7) is rotatably connected to the side of the base (1) through a first rotating seat (8). The other end is provided with a through hole (11). A first hand rod (12) is inserted into the through hole (11).

4. The multi-angle adjustable drill bit grinding machine working head according to claim 3, characterized in that, The base (1) is also connected to a second bolt (21), and an eccentric wheel (22) is sleeved on the second bolt (21). The edge of the eccentric wheel (22) is connected to a second hand rod (23). After the eccentric wheel (22) rotates around the second bolt (21), it meshes with the side of the rotating ring of the thrust radial roller bearing (13).

5. The multi-angle adjustable drill bit grinding machine working head according to claim 4, characterized in that, The second motor (15) is provided with a clamp (16), and a grinding fluid pipe (17) is connected in the clamp (16), with the port of the grinding fluid pipe (17) facing the drill bit (19).

6. The multi-angle adjustable drill bit grinding machine working head according to claim 5, characterized in that, The edge of the mounting base (4) is provided with a protective cover (5), which surrounds the grinding disc (6).

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