Drill bit with positioning structure for preventing deviation

Abstract

The utility model relates to the field of drill bit design, and discloses an anti-deviation drill bit with a positioning structure, which comprises a chip removal drill body, a drill handle and an adjusting ring, an eccentric head is slidably connected in the right end of the drill handle, a through groove is fixedly connected in the middle of the eccentric head, four auxiliary cutting blocks are fixedly connected outside the eccentric head, and the adjusting ring is fixedly connected with the through groove. An anti-disengaging groove is formed in the side, away from the through groove, of the auxiliary cutting block, a buffer gasket is fixedly connected to the left end of the eccentric head, a circular groove is formed in the chip removal drill body, a limiting groove is formed in the left end of the chip removal drill body, a groove is formed in the right end of the drill handle, and a limiting block is slidably connected to the inner wall of the groove. According to the utility model, centrifugal force is generated when the drill bit drills, so that the effects of automatic correction and deviation prevention are achieved, and dotting on the position needing to be drilled, positioning of the drilling position, deviation prevention and secondary machining are achieved.

Description

Technical Field

[0001] The utility model relates to the field of drill bit design, in particular to a drill bit with a positioning structure for preventing deviation. Background Art

[0002] The electric drill is one of the most commonly used power tools. It is convenient, cheap, and easy to carry. It is well received by workers in the hardware and decoration industries. It is a commonly used drilling tool in construction. The drill bit used in the electric drill is a rod that can drill holes. Its material is generally alloy. The drill bit includes a drill handle and a drill rod. The drill rod is generally equipped with several spiral cutting edges.

[0003] Nowadays, electric drills can basically achieve quick replacement of drill bits. However, during use, since the drilling center is not perpendicular to the drilling surface, the drill bit will be subjected to a single-sided radial force, and the chip edge will produce serious deflection, which will cause the drill bit to break and the hole to tilt. To this end, a drill bit with a positioning structure to prevent deviation is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a drill bit with a positioning structure to prevent deviation, aiming to improve the problem that the drill bit in the prior art is prone to tilting when drilling.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A drill bit with a positioning structure to prevent deviation comprises a chip removal drill body, a drill shank and an adjusting ring, an eccentric head is slidably connected to the inside of the right end of the drill shank, a through slot is fixedly connected to the middle of the eccentric head, four auxiliary cutting blocks are fixedly connected to the outside of the eccentric head, an anti-slip groove is provided on the side of the auxiliary cutting block away from the through slot, a buffer gasket is fixedly connected to the left end of the eccentric head, a circular groove is provided inside the chip removal drill body, a limiting groove is provided on the left end of the chip removal drill body, a groove is provided on the right end of the drill shank, the inner wall of the groove is slidably connected to the limiting block, a circulation groove is provided on the outside of the limiting block, and a positioning component for fixing the drill bit is provided at the right end of the limiting block;

[0007] As a further description of the above technical solution:

[0008] The positioning assembly includes a steel rod and a spring, the left end of the steel rod is fixedly connected to the right end of the limit block, and the spring is sleeved on the outside of the steel rod;

[0009] As a further description of the above technical solution:

[0010] The inner bottom end of the adjusting ring is fixedly connected with a clamping roller, the middle part of the inner wall of the adjusting ring is fixedly connected with a rubber ring, the bottom end of the rubber ring is provided with a through hole, and the left end of the drill handle is fixedly connected with an assembly block;

[0011] As a further description of the above technical solution:

[0012] The left side of the buffer gasket is fixedly connected to the right inner side of the chip removal drill body, and the left side of the auxiliary chip block is in contact with the right end of the chip removal drill body;

[0013] As a further description of the above technical solution:

[0014] The outer portion of the steel rod is slidably connected to the middle inner wall of the buffer pad, and the outer portion of the steel rod is slidably connected to the middle inner wall of the eccentric head;

[0015] As a further description of the above technical solution:

[0016] One end of the spring is fixedly connected to the right end of the limiting block, and the other end of the spring is fixedly connected to the right end of the inner wall of the limiting groove;

[0017] As a further description of the above technical solution:

[0018] The outer through-hole of the clamping roller is slidably connected to the inner wall of the circulation groove, and the outer part of the limiting block is slidably connected to the inner wall of the limiting groove;

[0019] As a further description of the above technical solution:

[0020] The right end of the drill shank is externally movably connected to the left end of the inner wall of the adjusting ring, and the left end of the chip removal drill body is externally movably connected to the right end of the inner wall of the adjusting ring.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the inclined head design of the eccentric head is combined with the auxiliary cutting block to limit the drill position and the buffer gasket to buffer the impact vibration of the eccentric head, so that the drill bit generates centrifugal force during drilling, thereby producing an automatic correction effect, thereby suppressing or reducing the deviation caused by vibration or material unevenness during the material drilling process.

[0023] 2. In the utility model, the clamping roller is driven to slide in the circulation groove of the limit block by rotating the adjusting ring, so that the circulation groove drives the steel rod to linearly extend to the middle of the eccentric head to mark the position where the hole needs to be drilled, thereby reducing the drilling error and adjustment time, thereby improving the overall drilling efficiency, ensuring that each drilling is accurate, and avoiding secondary processing or adjustment due to position offset. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional schematic diagram of a drill bit with a positioning structure to prevent deviation proposed by the utility model;

[0025] Figure 2 This is a structural schematic diagram of a drill bit buffer gasket with a positioning structure to prevent deviation proposed by the utility model;

[0026] Figure 3 This is a structural schematic diagram of a drill bit circular groove with a positioning structure to prevent deviation proposed by the utility model;

[0027] Figure 4 An exploded view of a drill bit rubber ring with a positioning structure to prevent deviation proposed by the utility model.

[0028] Legend:

[0029] 1. Chip removal drill body; 2. Drill shank; 3. Eccentric head; 4. Through groove; 5. Auxiliary cutting block; 6. Anti-slip groove; 7. Buffer gasket; 8. Round groove; 9. Limit groove; 10. Concave groove; 11. Limit block; 12. Circulation groove; 13. Steel rod; 14. Spring; 15. Adjustment ring; 16. Clamping roller; 17. Rubber ring; 18. Through hole; 19. Assembly block. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1-Figure 3 The utility model provides an embodiment: a drill bit with a positioning structure to prevent deviation, comprising a chip removal drill body 1, a drill shank 2 and an adjusting ring 15. The chip removal drill body 1 is the main part of the drill bit, responsible for supporting and transmitting drilling force. An eccentric head 3 is slidably connected to the inside of the right end of the drill shank 2, and a through groove 4 is fixedly connected to the middle of the eccentric head 3. The eccentric head 3 is located at the right end of the drill shank, and the through groove 4 is fixedly connected to the middle. The function of the through groove 4 is to avoid interfering with the extension and retraction of other components. Four auxiliary cutting blocks 5 are fixedly connected to the outside of the eccentric head 3, and the four auxiliary cutting blocks 5 are fixedly connected to the outside of the eccentric head for auxiliary positioning and stabilizing the drill bit. The left side of the auxiliary cutting block 5 contacts the right end of the chip removal drill body 1.

[0032] refer to Figure 2The auxiliary chipping block 5 is provided with an anti-slip groove 6 on the side away from the through groove 4. The anti-slip groove 6 is designed on the side of the auxiliary chipping block 5 away from the through groove 4 to prevent the drill bit from deviating or falling off during operation. The left end of the eccentric head 3 is fixedly connected with a buffer gasket 7. The left side of the buffer gasket 7 is fixedly connected to the right inner side of the chip removal drill body 1. The buffer gasket 7 is located at the left end of the eccentric head 3 and is in close contact with the inner wall of the chip removal drill body 1 for shock absorption and stabilizing the vibration during drilling. The chip removal drill body 1 is provided with A circular groove 8 is provided at the left end of the chip removal drill body 1 to provide a movable space in the chip removal drill body 1. A groove 10 is provided at the right end of the drill handle 2. The inner wall of the groove 10 is slidably connected to a limit block 11. A circulation groove 12 is provided on the outside of the limit block 11. The limit block 11 is located at the right end of the drill handle 2 and has a circulation groove 12 and a structure connected to a steel rod 13 for controlling the extension and positioning of the steel rod 13. A positioning component for fixing the drill bit is provided at the right end of the limit block 11.

[0033] refer to Figure 3 , Figure 4 The outside of the limit block 11 is slidably connected to the inner wall of the limit groove 9. The positioning assembly includes a steel rod 13 and a spring 14. The left end of the steel rod 13 is fixedly connected to the right end of the limit block 11. One end of the spring 14 is fixedly connected to the right end of the limit block 11. The other end of the spring 14 is fixedly connected to the right end of the inner wall of the limit groove 9. The spring 14 is sleeved on the outside of the steel rod 13. The outside of the steel rod 13 is slidably connected to the middle inner wall of the buffer gasket 7. The outside of the steel rod 13 is slidably connected to the middle inner wall of the eccentric head 3. This design is to allow the steel rod 13 to be reset under the elastic force of the spring 14.

[0034] The right end of the drill shank 2 is externally movably connected to the left end of the inner wall of the adjusting ring 15, and the left end of the chip removal drill body 1 is externally movably connected to the right end of the inner wall of the adjusting ring 15. The two sides of the adjusting ring 15 are clamped on the outside of the chip removal drill body 1 and the drill shank 2 on both sides to connect the chip removal drill body 1 and the drill shank 2. The inner bottom end of the adjusting ring 15 is fixedly connected with a card roller 16, and the outer part of the card roller 16 passes through a through hole 18 and is slidably connected to the inner wall of the circulation groove 12. A rubber ring 17 is fixedly connected to the middle part of the inner wall of the adjusting ring 15. When the adjusting ring 15 is rotated, the card roller 16 in the adjusting ring 15 passes through the fixed rubber ring 17 and slides in the circulation groove 12 of the internal limit block 11 of the drill bit. A through hole 18 is provided at the bottom end of the rubber ring 17. The through hole 18 is designed so that the card roller 16 can pass through it, and the rubber ring 17 is to prevent the stability of the rotation of the adjusting ring 15. The left end of the drill shank 2 is fixedly connected with an assembly block 19, and the entire drill bit can be assembled to the electric drill by assembling the assembly block 19 of the drill bit.

[0035] Working principle: When in use, the entire drill bit is assembled to the electric drill through the assembly block 19 of the drill bit, and then the drill bit is aligned with the position where a hole needs to be drilled, and the adjusting ring 15 is rotated to drive the clamping roller 16 to pass through the rubber ring 17 fixed by the adjusting ring 15 to slide in the circulation groove 12 of the limit block 11 inside the drill bit. Because the circulation groove 12 is a movable groove with upper and lower limits, and a steel rod 13 is fixed to the right end of the limit block 11, when the clamping roller 16 slides along the circulation groove 12 of the limit block 11, the limit block 11 will gradually slide to the right end, and synchronously drive the steel rod 13 to slide, so that the steel rod 13 can slide and retract out of the through groove 4 of the eccentric head 3, and locate a small pit at the position where a hole needs to be drilled, thereby reducing the drilling error and adjustment time, thereby improving the overall drilling efficiency.

[0036] Finally, align the eccentric head 3 of the drill bit with the located hole, start the electric drill, and let the rotational kinetic energy of the electric drill drive the eccentric head 3 to rotate and generate centrifugal force. The effect of this centrifugal force will make the drill bit tend to move in a specific direction, thereby suppressing the deviation caused by vibration or material unevenness during the drilling process, and then cooperate with the auxiliary cutting block 5 fixed outside the eccentric head 3 to assist the eccentric head 3 to rotate, and the anti-slip groove 6 on the auxiliary cutting block 5 will assist the eccentric head 3 in drilling, increase the friction connection with the hole, and reduce the possibility of detachment, and the buffer gasket 7 connected to the eccentric head 3 will partially buffer the transmission vibration received by the eccentric head 3, thereby reducing the deviation caused by vibration or material unevenness during the drilling process.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. 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 with a positioning structure to prevent deviation, comprising a chip removal drill body (1), a drill shank (2) and an adjustment ring (15), characterized in that: An eccentric head (3) is slidably connected to the inside of the right end of the drill shank (2), a through slot (4) is fixedly connected to the middle of the eccentric head (3), four auxiliary cutting blocks (5) are fixedly connected to the outside of the eccentric head (3), an anti-slip groove (6) is provided on the side of the auxiliary cutting block (5) away from the through slot (4), a buffer gasket (7) is fixedly connected to the left end of the eccentric head (3), a circular groove (8) is provided inside the chip removal drill body (1), a limiting groove (9) is provided at the left end of the chip removal drill body (1), a groove (10) is provided at the right end of the drill shank (2), the inner wall of the groove (10) is slidably connected to a limiting block (11), a circulation groove (12) is provided on the outside of the limiting block (11), and a positioning component for fixing the drill bit is provided at the right end of the limiting block (11).

2. A drill bit with a positioning structure to prevent deviation according to claim 1, characterized in that: The positioning assembly comprises a steel rod (13) and a spring (14); the left end of the steel rod (13) is fixedly connected to the right end of the limit block (11); and the spring (14) is sleeved on the outside of the steel rod (13).

3. A drill bit with a positioning structure to prevent deviation according to claim 1, characterized in that: The inner bottom end of the adjusting ring (15) is fixedly connected to a clamping roller (16), the middle part of the inner wall of the adjusting ring (15) is fixedly connected to a rubber ring (17), the bottom end of the rubber ring (17) is provided with a through hole (18), and the left end of the drill handle (2) is fixedly connected to an assembly block (19).

4. A drill bit with a positioning structure to prevent deviation according to claim 1, characterized in that: The left side of the buffer gasket (7) is fixedly connected to the right interior of the chip removal drill body (1), and the left side of the auxiliary chipping block (5) is in contact with the right end of the chip removal drill body (1).

5. A drill bit with a positioning structure to prevent deviation according to claim 2, characterized in that: The outside of the steel rod (13) is slidably connected to the middle inner wall of the buffer gasket (7), and the outside of the steel rod (13) is slidably connected to the middle inner wall of the eccentric head (3).

6. A drill bit with a positioning structure to prevent deviation according to claim 2, characterized in that: One end of the spring (14) is fixedly connected to the right end of the limiting block (11), and the other end of the spring (14) is fixedly connected to the right end of the inner wall of the limiting groove (9).

7. A drill bit with a positioning structure to prevent deviation according to claim 3, characterized in that: The outer through hole (18) of the clamping roller (16) is slidably connected to the inner wall of the circulation groove (12), and the outer part of the limiting block (11) is slidably connected to the inner wall of the limiting groove (9).

8. A drill bit with a positioning structure to prevent deviation according to claim 1, characterized in that: The right end of the drill shank (2) is externally movably connected to the left end of the inner wall of the adjustment ring (15), and the left end of the chip removal drill body (1) is externally movably connected to the right end of the inner wall of the adjustment ring (15).

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