Combined deep hole drill bit

Abstract

The utility model relates to the technical field of deep hole drill bits, and discloses a combined deep hole drill bit which solves the problems that in the using process of a deep hole drill bit, combination and splicing are not convenient, certain limitation exists, operation of people is affected, and therefore better practicability is not convenient to achieve. Four fixing grooves are evenly formed in the outer side of the connector, a connecting base is fixedly installed at the bottom of the connector, a connecting assembly is fixedly installed at the bottom of the connecting base, a drill bit assembly is installed at the bottom of the connecting assembly, the connecting assembly comprises a cylindrical vertical rod, and the top end of the cylindrical vertical rod is fixedly connected with the middle of the bottom end of the connecting base; strip-shaped grooves are uniformly formed in the outer side of the cylindrical vertical rod, and a threaded connection hole is formed in the bottom end of the cylindrical vertical rod; according to the deep hole drill, the deep hole drill can be conveniently combined and spliced in the using process, the limitation of the deep hole drill is reduced, people can conveniently and better operate the deep hole drill, and therefore better practicability is conveniently achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of deep hole drill bits, in particular to a combined deep hole drill bit. Background Art

[0002] A deep hole drill is a drill specially used for processing deep holes. It can be divided into two categories: external chip removal and internal chip removal. In mechanical processing, holes with a ratio of hole depth to hole diameter greater than six are usually called deep holes. Therefore, a deep hole drill is needed to process such deep holes. However, during the use of deep hole drills, it is not convenient to combine and splice them, and there are certain limitations, which affects people's operation and is not conducive to achieving better practicality. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a combined deep hole drill bit, which effectively solves the problem that the deep hole drill bit is not convenient to be combined and spliced ​​during use, has certain limitations, affects people's operation, and is not convenient to achieve better practicality.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined deep hole drill, comprising a connecting head, four fixing grooves are evenly opened on the outer side of the connecting head, a connecting seat is fixedly installed at the bottom of the connecting head, a connecting assembly is fixedly installed at the bottom of the connecting seat, and a drill assembly is installed at the bottom of the connecting assembly;

[0005] The connecting assembly includes a cylindrical vertical rod, and the top of the cylindrical vertical rod is fixedly connected to the middle of the bottom end of the connecting seat, the outer side of the cylindrical vertical rod is evenly provided with strip grooves, the bottom end of the cylindrical vertical rod is provided with a threaded connection hole, the bottom of the threaded connection hole is fixedly installed with a first positioning seat and a second positioning seat, and the first positioning seat and the second positioning seat are symmetrically fixedly installed on the bottom of the cylindrical vertical rod, the first positioning seat is provided with a first through hole running through the inside of the first positioning seat, the second through hole running through the inside of the second positioning seat, and the second through hole is horizontally aligned with the first through hole, a threaded connection sleeve is fixedly installed on a side of the second positioning seat away from the first positioning seat, and the threaded connection sleeve is horizontally aligned with the second through hole, a threaded positioning rod is provided inside the first positioning seat, and the threaded positioning rod is movably installed through the inside of the first through hole, one end of the threaded positioning rod is movably installed through the second through hole and is threadedly installed inside the threaded connection sleeve, the other end of the threaded positioning rod is fixedly installed with a circular end head, and a hexagonal groove is provided on the side of the circular end head away from the threaded positioning rod;

[0006] The drill bit assembly includes a drill rod, and the diameter of the drill rod is the same as the diameter of the cylindrical vertical rod. A spiral groove is provided on the outside of the drill rod, a threaded connecting rod is fixedly installed in the middle of the top end of the drill rod, and the threaded connecting rod is threadedly installed in the inside of the threaded connecting hole, a positioning hole is penetrated through the bottom end of the threaded connecting rod, and the threaded positioning rod is penetrated and installed in the inside of the positioning hole, a conical head is fixedly installed at the bottom of the drill rod, and tooth blocks are evenly fixedly installed on the outside of the conical head, and the distance from the end of the tooth block away from the conical head to the center of the conical head is greater than the radius of the drill rod.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] 1) During work, through the interaction of the provided connecting head, fixing groove, connecting seat, connecting assembly and drill assembly, the deep hole drill bit can be easily combined and spliced ​​during use, reducing its limitations, so that people can better operate it, thereby achieving better practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0010] Figure 1 This is a schematic diagram of the structure of a combined deep hole drill bit of the utility model;

[0011] Figure 2 This is a schematic diagram of the structure of the connection assembly of the utility model;

[0012] Figure 3 This is a structural schematic diagram of a drill bit assembly of the present utility model.

[0013] In the figure: In the figure: 1. Connector; 2. Fixing groove; 3. Connecting seat; 4. Connecting assembly; 5. Drill assembly; 6. Cylindrical vertical rod; 7. Strip groove; 8. Threaded connecting hole; 9. First positioning seat; 10. Second positioning seat; 11. First through hole; 12. Second through hole; 13. Threaded connecting sleeve; 14. Threaded positioning rod; 15. Round end; 16. Hexagonal groove; 17. Drill rod; 18. Spiral groove; 19. Threaded connecting rod; 20. Positioning hole; 21. Conical head; 22. Tooth block. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0015] Embodiment 1, by Figure 1 , Figure 2 and Figure 3 The utility model comprises a connector 1, four fixing grooves 2 are evenly arranged on the outer side of the connector 1, a connector seat 3 is fixedly installed on the bottom of the connector 1, a connector assembly 4 is fixedly installed on the bottom of the connector seat 3, and a drill assembly 5 is installed on the bottom of the connector assembly 4;

[0016] The connecting assembly 4 includes a cylindrical vertical rod 6, and the top of the cylindrical vertical rod 6 is fixedly connected to the middle of the bottom end of the connecting seat 3, the outer side of the cylindrical vertical rod 6 is evenly provided with a strip groove 7, the bottom end of the cylindrical vertical rod 6 is provided with a threaded connection hole 8, the bottom of the threaded connection hole 8 is fixedly installed with a first positioning seat 9 and a second positioning seat 10, and the first positioning seat 9 and the second positioning seat 10 are symmetrically fixedly installed at the bottom of the cylindrical vertical rod 6, the first positioning seat 9 is provided with a first through hole 11, the second positioning seat 10 is provided with a second through hole 12, and the second through hole 12 is connected to the first through hole 11. The holes 11 are aligned horizontally, a threaded connection sleeve 13 is fixedly installed on the side of the second positioning seat 10 away from the first positioning seat 9, and the threaded connection sleeve 13 is horizontally aligned with the second through hole 12, a threaded positioning rod 14 is arranged inside the first positioning seat 9, and the threaded positioning rod 14 is movably installed inside the first through hole 11, one end of the threaded positioning rod 14 is movably inserted into the second through hole 12 and is threadedly installed inside the threaded connection sleeve 13, and a circular end 15 is fixedly installed on the other end of the threaded positioning rod 14, and a hexagonal groove 16 is provided on the side of the circular end 15 away from the threaded positioning rod 14;

[0017] The drill bit assembly 5 includes a drill rod 17, and the diameter of the drill rod 17 is the same as the diameter of the cylindrical vertical rod 6. A spiral groove 18 is provided on the outer side of the drill rod 17. A threaded connecting rod 19 is fixedly installed in the middle of the top end of the drill rod 17, and the threaded connecting rod 19 is threadedly installed in the inside of the threaded connecting hole 8. A positioning hole 20 is penetrated through the bottom end of the threaded connecting rod 19, and the threaded positioning rod 14 is penetrated and installed in the inside of the positioning hole 20. A conical head 21 is fixedly installed at the bottom of the drill rod 17, and tooth blocks 22 are evenly fixedly installed on the outer side of the conical head 21, and the distance from the end of the tooth block 22 away from the conical head 21 to the center of the conical head 21 is greater than the radius of the drill rod 17.

[0018] During use, through the interaction of the connecting head 1, the fixing groove 2, the connecting seat 3, the connecting assembly 4 and the drill assembly 5, the deep hole drill bit can be easily combined and spliced ​​during use, reducing its limitations, so that people can better operate it, thereby achieving better practicality.

[0019] Working principle: When working, first insert a hexagonal wrench that matches the size of the hexagonal groove 16 into it, then rotate the hexagonal wrench to drive the round end 15 to rotate, and the round end 15 drives the threaded positioning rod 14 to rotate, and the threaded positioning rod 14 rotates to disengage from the threaded connection sleeve 13, and then the threaded positioning rod 14 is pulled out from the second through hole 12 and the first through hole 11, and then the threaded connecting rod 19 at the top of the drill rod 17 is threadedly inserted into the threaded connection hole 8 inside the bottom end of the cylindrical vertical rod 6. After the threaded connecting rod 19 completely enters the threaded connection hole 8, the positioning hole 20 on the threaded connecting rod 19 is in a horizontal alignment position with the first through hole 11 and the second through hole 12, and then the threaded positioning rod 14 is re-inserted into the positioning hole 2 through the first through hole 11 0, and then inserted into the threaded connection sleeve 13 through the second through hole 12, and then rotate the threaded positioning rod 14 so that the end of the threaded positioning rod 14 away from the circular end head 15 is threadedly installed in the threaded connection sleeve 13, and the threaded connection rod 19 is positioned in the threaded connection hole 8 to complete the installation between the drill bit assembly 5 and the connection assembly 4, and then insert the connector 1 into the mounting hole on the drilling rig, and operate the fixing structure on the drilling rig to insert it into the fixing groove 2, fix the connector 1 in the mounting hole on the drilling rig, and then start the drilling rig to drive the deep hole drill bit to rotate for drilling operation, so that the deep hole drill bit can be easily combined and spliced ​​during use, reducing its limitations, so that people can better operate it, thereby achieving better practicality.

Claims

1. A combined deep hole drill, comprising a connector (1), characterized in that: Four fixing grooves (2) are evenly arranged on the outer side of the connecting head (1); a connecting seat (3) is fixedly installed at the bottom of the connecting head (1); a connecting assembly (4) is fixedly installed at the bottom of the connecting seat (3); and a drill assembly (5) is installed at the bottom of the connecting assembly (4); The connecting assembly (4) comprises a cylindrical vertical rod (6), and the top end of the cylindrical vertical rod (6) is fixedly connected to the middle part of the bottom end of the connecting seat (3), the outer side of the cylindrical vertical rod (6) is evenly provided with strip grooves (7), the bottom end of the cylindrical vertical rod (6) is provided with a threaded connection hole (8), the bottom of the threaded connection hole (8) is fixedly installed with a first positioning seat (9) and a second positioning seat (10), and the first positioning seat (9) and the second positioning seat (10) are symmetrically fixedly installed on the bottom of the cylindrical vertical rod (6), the first positioning seat (9) is provided with a first through hole (11) through the inside, and the second positioning seat (10) is provided with a second through hole (12) through the inside, and the second through hole (12) is symmetrically fixedly installed on the bottom of the cylindrical vertical rod (6), The through holes (11) are aligned horizontally; a threaded connection sleeve (13) is fixedly installed on a side of the second positioning seat (10) away from the first positioning seat (9), and the threaded connection sleeve (13) is horizontally aligned with the second through hole (12); a threaded positioning rod (14) is arranged inside the first positioning seat (9), and the threaded positioning rod (14) is movably installed inside the first through hole (11); one end of the threaded positioning rod (14) is movably installed inside the second through hole (12) and is threadedly installed inside the threaded connection sleeve (13); a circular end cap (15) is fixedly installed on the other end of the threaded positioning rod (14), and a hexagonal groove (16) is provided on a side of the circular end cap (15) away from the threaded positioning rod (14); The drill bit assembly (5) comprises a drill rod (17), wherein the diameter of the drill rod (17) is the same as the diameter of the cylindrical vertical rod (6), a spiral groove (18) is provided on the outer side of the drill rod (17), a threaded connecting rod (19) is fixedly installed at the middle of the top end of the drill rod (17), and the threaded connecting rod (19) is threadedly installed inside the threaded connecting hole (8), a positioning hole (20) is penetrated through the bottom end of the threaded connecting rod (19), and the threaded positioning rod (14) is penetrated and installed inside the positioning hole (20), a conical head (21) is fixedly installed at the bottom of the drill rod (17), and a tooth block (22) is evenly fixedly installed on the outer side of the conical head (21), and the distance from the end of the tooth block (22) away from the conical head (21) to the center of the conical head (21) is greater than the radius of the drill rod (17).

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