High-strength punching drill bit

Abstract

The utility model discloses a high-strength punching drill bit which comprises a drill bit body, the drill bit body is arranged on a clamp of a hand drill, the clamp is provided with a plurality of sets of clamping rods, and clamping cavities are formed among the multiple sets of clamping rods. The drill bit body is provided with a connecting rod, the connecting rod is provided with a limiting plate, the limiting plate is arranged in the clamping cavity, the outer wall of the connecting rod is sleeved with a limiting sleeve capable of moving in a reciprocating mode, the limiting sleeve makes contact with the clamping rod, and the clamping rod is positioned between the limiting plate and the limiting sleeve; the punching device has the advantages that the clamping rods are positioned and clamped through the limiting sleeves and the limiting plates, in the punching process, the connecting stability of the connecting rod and the clamp can be effectively guaranteed, the connecting rod can be prevented from sliding out of the multiple sets of clamping rods, the safety in the punching process can be improved, and meanwhile the punching quality can be guaranteed.

Description

Technical Field

[0001] The utility model relates to a high-strength drilling drill bit. Background Art

[0002] In mechanical processing and construction engineering, it is often necessary to use a hand drill for drilling operations. Traditional hand drill bits are usually fixed by simple clamps. However, the existing clamp design has certain shortcomings when fixing the drill bit. Specifically, during the drilling process, the drill bit connecting rod is easily affected by vibration and external force and loosens, causing the drill bit to fall off, which not only affects the quality of drilling, but also poses a great safety hazard. In view of this, the utility model proposes a high-strength drilling drill bit to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a high-strength drilling drill bit to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A high-strength drilling drill bit, comprising a drill bit body, wherein the drill bit body is arranged on a clamp of a hand drill, wherein the clamp is provided with a plurality of groups of clamping rods, and a clamping cavity is arranged between the plurality of groups of clamping rods;

[0006] The drill body is provided with a connecting rod, a limiting plate is provided on the connecting rod, the limiting plate is arranged in the clamping cavity, the outer wall of the connecting rod is provided with a limiting sleeve that can be moved back and forth, the limiting sleeve contacts the clamping rod, and positions the clamping rod between the limiting plate and the limiting sleeve.

[0007] As an improvement of the above technical solution, an outer wall of the connecting rod is provided with an external threaded wall, a nut is threadedly sleeved on the external threaded wall, and the limiting sleeve is arranged on the nut.

[0008] As an improvement of the above technical solution, the nut is provided with a connecting sleeve, and the limiting sleeve is rotatably arranged on the connecting sleeve.

[0009] As an improvement of the above technical solution, positioning pipes are symmetrically arranged on the outer wall of the nut, and the positioning pipes are connected to the inner cavity of the nut.

[0010] As an improvement of the above technical solution, a positioning bolt is threadedly connected in the positioning pipe, and the positioning bolt contacts the surface of the connecting rod to position the nut.

[0011] As an improvement of the above technical solution, two groups of positioning pipes are provided, and the two positioning pipes are symmetrically arranged on the nut.

[0012] As an improvement of the above technical solution, the limiting sleeve is made of rubber material.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] When the drill body is connected, the clamp is opened and the connecting rod is sent into the clamping cavity, and then the clamp drives the clamping rod to move toward the connecting rod until the clamping rod contacts the outer wall of the connecting rod, and then the limit sleeve moves until the limit sleeve contacts the clamping rod;

[0015] The positioning and clamping of the clamping rod by the limit sleeve and the limit plate can improve the connection strength between the drill body and the clamp. During the drilling process, the stability of the connection between the connecting rod and the clamp can be effectively guaranteed, and the connecting rod can be prevented from slipping out of multiple groups of clamping rods. The safety of the drilling process can be improved, and the quality of the drilling can also be guaranteed, which is convenient for high-intensity drilling operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the connection between the drill body and the clamp of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the drill body of the utility model;

[0018] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 4 It is a structural schematic diagram of the nut of the utility model;

[0020] Figure 5 It is a front view of the nut of the utility model;

[0021] Figure 6 For this utility model Figure 5 Cross-sectional view of the middle BB;

[0022] Figure 7 It is a structural schematic diagram of a clamp in the prior art.

[0023] In the figure: 10, clamp; 11, clamping rod; 12, clamping cavity; 20, drill body; 30, connecting rod; 31, limit plate; 32, external thread wall; 40, limit sleeve; 50, nut; 51, positioning pipe; 52, positioning bolt; 53, connecting sleeve. DETAILED DESCRIPTION

[0024] 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.

[0025] Example:

[0026] like Figure 1-7 As shown, this embodiment provides a high-strength drilling drill, including a drill body 20, wherein the drill body 20 is arranged on a hand drill fixture 10, wherein the fixture 10 is provided with a plurality of groups of clamping rods 11, and a clamping cavity 12 is arranged between the plurality of groups of clamping rods 11;

[0027] The drill body 20 is provided with a connecting rod 30, and a limit plate 31 is provided on the connecting rod 30. The limit plate 31 is arranged in the clamping cavity 12. The outer wall of the connecting rod 30 is provided with a limit sleeve 40 that can be moved back and forth. The limit sleeve 40 contacts the clamping rod 11 to position the clamping rod 11 between the limit plate 31 and the limit sleeve 40.

[0028] In this case, how the clamp 10 and the clamping rod 11 clamp the connecting rod 30 is not described in detail in the prior art.

[0029] In this embodiment, when the drill body 20 is connected, the clamp 10 is opened and the connecting rod 30 is inserted into the clamping cavity 12, and then the clamp 10 drives the clamping rod 11 to move toward the connecting rod 30 until the clamping rod 11 contacts the outer wall of the connecting rod 30, and then the limiting sleeve 40 moves until the limiting sleeve 40 contacts the clamping rod 11;

[0030] By positioning and clamping the clamping rod 11 through the limit sleeve 40 and the limit plate 31, the connection strength between the drill body 20 and the fixture 10 can be improved. During the drilling process, the stability of the connection between the connecting rod 30 and the fixture 10 can be effectively guaranteed, and the connecting rod 30 can be prevented from slipping out of the multiple groups of clamping rods 11. The safety of the drilling process can be improved, and the quality of the drilling can also be guaranteed, which is convenient for high-intensity drilling operations.

[0031] Specifically, an outer wall of the connecting rod 30 is provided with an external thread wall 32 , a nut 50 is threadedly sleeved on the external thread wall 32 , and the limiting sleeve 40 is disposed on the nut 50 .

[0032] In this embodiment, by the cooperation between the external thread wall 32 and the nut 50 , when the nut 50 is displaced on the external thread wall 32 , the limiting sleeve 40 can be driven to be displaced so that the limiting sleeve 40 contacts the clamping rod 11 .

[0033] Specifically, the nut 50 is provided with a connecting sleeve 53 , and the limiting sleeve 40 is rotatably disposed on the connecting sleeve 53 .

[0034] In this embodiment, by providing the connecting sleeve 53, the limiting sleeve 40 can be prevented from rotating during the rotation of the nut 50. When the limiting sleeve 40 contacts the clamping rod 11, the nut 50 can continue to rotate to achieve a locking effect.

[0035] Specifically, the outer wall of the nut 50 is symmetrically provided with positioning pipes 51 , and the positioning pipes 51 are communicated with the inner cavity of the nut 50 .

[0036] In this embodiment, the positioning pipe 51 can facilitate the nut 50 to rotate.

[0037] Specifically, a positioning bolt 52 is threadedly connected in the positioning pipe 51 , and the positioning bolt 52 contacts the surface of the connecting rod 30 to position the nut 50 .

[0038] In this embodiment, when the nut 50 stops rotating and the limit sleeve 40 contacts the clamping rod 11, the positioning bolt 52 rotates in the positioning pipe 51 until the positioning bolt 52 contacts the surface of the connecting rod 30, thereby locking the nut 50 through friction force to prevent the nut 50 from rotating during the rotation of the connecting rod 30.

[0039] Specifically, two groups of positioning pipes 51 are provided, and the two positioning pipes 51 are symmetrically arranged on the nut 50 .

[0040] In this embodiment, the symmetrically arranged positioning pipes 51 can ensure the stability of the drill body 20 during rotation and avoid shaking caused by eccentricity;

[0041] Of course, positioning bolts 52 are provided in both sets of positioning pipes 51 .

[0042] Specifically, the limiting sleeve 40 is made of rubber material.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength drilling drill bit, characterized in that: The drill bit body (20) is provided on a hand drill fixture (10), the fixture (10) is provided with a plurality of groups of clamping rods (11), and a clamping cavity (12) is provided between the plurality of groups of clamping rods (11); The drill body (20) is provided with a connecting rod (30), a limiting plate (31) is provided on the connecting rod (30), the limiting plate (31) is arranged in the clamping cavity (12), the outer wall of the connecting rod (30) is provided with a limiting sleeve (40) that can move back and forth, the limiting sleeve (40) is in contact with the clamping rod (11), and the clamping rod (11) is positioned between the limiting plate (31) and the limiting sleeve (40).

2. A high-strength drilling drill according to claim 1, characterized in that: An external thread wall (32) is formed on the outer wall of the connecting rod (30), a nut (50) is threadedly sleeved on the external thread wall (32), and the limiting sleeve (40) is arranged on the nut (50).

3. A high-strength drilling drill according to claim 2, characterized in that: The nut (50) is provided with a connecting sleeve (53), and the limiting sleeve (40) is rotatably arranged on the connecting sleeve (53).

4. A high-strength drilling drill according to claim 3, characterized in that: Positioning pipes (51) are symmetrically arranged on the outer wall of the nut (50), and the positioning pipes (51) are in communication with the inner cavity of the nut (50).

5. A high-strength perforating drill bit according to claim 4, characterized in that: A positioning bolt (52) is threadedly connected in the positioning pipe (51), and the positioning bolt (52) contacts the surface of the connecting rod (30) to position the nut (50).

6. A high-strength perforating drill bit according to claim 4, characterized in that: Two groups of the positioning pipes (51) are provided, and the two positioning pipes (51) are symmetrically arranged on the nut (50).

7. The high-strength perforating drill bit according to claim 1, characterized in that: The limiting sleeve (40) is made of rubber material.

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