Hard alloy drill bit cutter assembly

Abstract

The utility model discloses a hard alloy drill bit cutter assembly which comprises a drill bit body, and a connecting rod is arranged on the drill bit body. The outer wall of the connecting rod is slidably sleeved with a connecting sleeve, an adjusting screw rod is arranged in the connecting sleeve, the adjusting screw rod is rotationally connected with the connecting sleeve, and the adjusting screw rod is in threaded connection with the connecting rod, so that the drill bit body is connected with the connecting sleeve; compared with the prior art, the drill bit has the advantages that the drill bit body and the connecting sleeve can be divided into two groups of modules through the screw-thread fit between the adjusting screw rod and the connecting rod, when the drill bit is damaged in the later period, only the damaged part needs to be replaced, the cost can be effectively reduced, and the overall practicability is greatly improved.

Description

Technical Field

[0001] The utility model relates to a hard alloy drill tool assembly. Background Art

[0002] In the field of industrial manufacturing, carbide drill bits are widely used due to their high hardness, high wear resistance and high thermal stability. However, existing carbide drill bits are usually one-piece structures. Once a part is worn or damaged, the entire drill bit often needs to be replaced, which increases the cost of use. In addition, during the use of traditional carbide drill bits, it is difficult to adjust the length and use parameters of the drill bit according to actual needs, which limits its flexibility in different application scenarios. In view of this, the utility model proposes a carbide drill tool assembly to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a carbide drill tool assembly 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 cemented carbide drill tool assembly comprises a drill body, wherein a connecting rod is arranged on the drill body;

[0006] The outer wall sliding sleeve of the connecting rod is provided with a connecting sleeve, and an adjusting screw is arranged in the connecting sleeve. The adjusting screw is rotatably connected with the connecting sleeve, and the adjusting screw is threadedly connected with the connecting rod, so that the drill body is connected with the connecting sleeve.

[0007] As an improvement of the above technical solution, the connecting rod is prismatic, and the connecting sleeve is provided with a connecting hole;

[0008] The connecting hole is matched with the connecting sleeve.

[0009] As an improvement of the above technical solution, a threaded hole is provided on the connecting rod, and the adjusting screw is adapted to the threaded hole.

[0010] As an improvement of the above technical solution, the adjusting screw is provided with a rotating portion, and the cross section of the rotating portion is circular;

[0011] The connecting sleeve is provided with a rotating cavity, and the rotating part is rotatably connected in the rotating cavity.

[0012] As an improvement of the above technical solution, the outer wall of the rotating part is symmetrically provided with limit ring plates, and the rotating chamber is arranged between two groups of limit ring plates.

[0013] As an improvement of the above technical solution, a hexagonal prism rotating rod is provided on the rotating part;

[0014] The connecting sleeve is provided with a toggle through slot, and the hexagonal prism rotating rod is rotatably arranged in the toggle through slot.

[0015] As an improvement of the above technical solution, two groups of limit strips are arranged on the connecting sleeve, and the two groups of limit strips are symmetrically arranged.

[0016] As an improvement of the above technical solution, the length of the adjusting screw, the length of the connecting rod and the length of the threaded hole are the same.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] When the drill body is in use, the connecting rod is inserted into the connecting sleeve, and the adjusting screw is continuously rotated. By adjusting the threaded fit of the screw and the connecting rod, the connecting rod is fully placed inside the connecting sleeve, and then the connecting sleeve is connected to the drill fixture (such as the head of a hand drill).

[0019] Through the threaded cooperation between the adjusting screw and the connecting rod set as above, the drill body and the connecting sleeve can be divided into two groups of modules. When damage occurs at a later stage, the damaged part can be replaced, which can effectively reduce the cost expenditure and greatly improve the overall practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the connecting rod of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the connecting sleeve of the utility model;

[0023] Figure 4 It is a front view of the connecting sleeve of the utility model;

[0024] Figure 5 For this utility model Figure 4 Sectional view of AA in the middle;

[0025] Figure 6 This is a schematic diagram of the structure of the adjusting screw of the utility model;

[0026] Figure 7 For this utility model Figure 6 Schematic diagram of the enlarged structure at point B in the middle.

[0027] In the figure: 10, drill body; 11, connecting rod; 12, threaded hole; 20, connecting sleeve; 21, connecting hole; 22, toggle slot; 23, limit strip; 24, rotating chamber; 30, adjusting screw; 40, limit ring plate; 50, rotating part; 60, hexagonal prism rotating rod. DETAILED DESCRIPTION

[0028] 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.

[0029] Example:

[0030] like Figure 1-7 As shown, this embodiment provides a cemented carbide drill tool assembly, including a drill body 10, on which a connecting rod 11 is provided;

[0031] The outer wall sliding sleeve of the connecting rod 11 is provided with a connecting sleeve 20, and an adjusting screw 30 is arranged in the connecting sleeve 20. The adjusting screw 30 is rotatably connected to the connecting sleeve 20, and the adjusting screw 30 is threadedly connected to the connecting rod 11, so that the drill body 10 is connected to the connecting sleeve 20.

[0032] In this embodiment, when the drill body 10 is used, the connecting rod 11 is inserted into the connecting sleeve 20, and the adjusting screw 30 is continuously rotated. By adjusting the threaded fit between the screw 30 and the connecting rod 11, the connecting rod 11 is fully positioned inside the connecting sleeve 20, and then the connecting sleeve 20 is connected to the drill fixture (such as the head of a hand drill).

[0033] By means of the threaded cooperation between the adjusting screw 30 and the connecting rod 11, the drill body 10 and the connecting sleeve 20 can be divided into two modules. When damage occurs at a later stage, the damaged part can be replaced, which can effectively reduce the cost expenditure and greatly improve the overall practicality.

[0034] Specifically, the connecting rod 11 is prismatic, and the connecting sleeve 20 is provided with a connecting hole 21;

[0035] The connecting hole 21 is matched with the connecting sleeve 20 .

[0036] In this embodiment, the connection sleeve 20 can easily transmit power to the drill body 10 through the cooperation between the prismatic connection rod 11 and the connection hole 21 .

[0037] Specifically, a threaded hole 12 is provided on the connecting rod 11 , and the adjusting screw 30 is matched with the threaded hole 12 .

[0038] In this embodiment, the threaded cooperation between the adjusting screw 30 and the threaded hole 12 can facilitate the connection between the drill body 10 and the connecting sleeve 20, which is convenient for later maintenance.

[0039] Of course, by adjusting the fit between the screw rod 30 and the threaded hole 12, the spacing between the connecting rod 11 and the connecting sleeve 20 can be adjusted, and the overall length can be adjusted so as to adjust the length for use according to actual usage conditions.

[0040] Specifically, the adjusting screw 30 is provided with a rotating portion 50, and the rotating portion 50 has a circular cross section;

[0041] The connecting sleeve 20 is provided with a rotating cavity 24 , and the rotating portion 50 is rotatably connected in the rotating cavity 24 .

[0042] In this embodiment, the provided rotating portion 50 can facilitate the adjustment screw rod 30 to rotate.

[0043] Specifically, the outer wall of the rotating portion 50 is symmetrically provided with limiting ring plates 40 , and the rotating cavity 24 is provided between two groups of limiting ring plates 40 .

[0044] In this embodiment, the two sets of limiting ring plates 40 can prevent the adjusting screw rod 30 from being separated from the connecting hole 21 .

[0045] Specifically, the rotating portion 50 is provided with a hexagonal prism rotating rod 60;

[0046] The connecting sleeve 20 is provided with a toggle slot 22 , and the hexagonal prism rotating rod 60 is rotatably disposed in the toggle slot 22 .

[0047] In this embodiment, the toggle through slot 22 can facilitate the hexagonal prism rotating rod 60 to rotate, thereby facilitating the adjustment screw 30 to rotate.

[0048] Specifically, two groups of limiting strips 23 are arranged on the connecting sleeve 20, and the two groups of limiting strips 23 are symmetrically arranged.

[0049] In this embodiment, the limiting strip 23 is provided to improve the stability of the connection between the connecting sleeve 20 and the drill fixture (such as the head of a hand drill).

[0050] Specifically, the length of the adjusting screw 30 , the length of the connecting rod 11 and the length of the threaded hole 12 are the same.

[0051] 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 cemented carbide drill tool assembly, characterized in that: It comprises a drill body (10), wherein a connecting rod (11) is provided on the drill body (10); The outer wall sliding sleeve of the connecting rod (11) is provided with a connecting sleeve (20), and an adjusting screw (30) is arranged inside the connecting sleeve (20). The adjusting screw (30) is rotatably connected to the connecting sleeve (20), and the adjusting screw (30) is threadedly connected to the connecting rod (11), so that the drill body (10) is connected to the connecting sleeve (20).

2. A cemented carbide drill tool assembly according to claim 1, characterized in that: The connecting rod (11) is prismatic, and the connecting sleeve (20) is provided with a connecting hole (21); The connecting hole (21) is matched with the connecting sleeve (20).

3. A cemented carbide drill tool assembly according to claim 1, characterized in that: The connecting rod (11) is provided with a threaded hole (12), and the adjusting screw rod (30) is adapted to fit the threaded hole (12).

4. A cemented carbide drill tool assembly according to claim 3, characterized in that: The adjusting screw rod (30) is provided with a rotating portion (50), and the rotating portion (50) has a circular cross section; The connecting sleeve (20) is provided with a rotating cavity (24), and the rotating portion (50) is rotatably connected in the rotating cavity (24).

5. A cemented carbide drill tool assembly according to claim 4, characterized in that: The outer wall of the rotating part (50) is symmetrically provided with limit ring plates (40), and the rotating cavity (24) is provided between two groups of limit ring plates (40).

6. A cemented carbide drill tool assembly according to claim 4, characterized in that: The rotating part (50) is provided with a hexagonal prism rotating rod (60); The connecting sleeve (20) is provided with a toggle slot (22), and the hexagonal prism rotating rod (60) is rotatably disposed in the toggle slot (22).

7. A cemented carbide drill tool assembly according to claim 1, characterized in that: Two groups of limit strips (23) are arranged on the connecting sleeve (20), and the two groups of limit strips (23) are symmetrically arranged.

8. A cemented carbide drill tool assembly according to claim 3, characterized in that: The length of the adjusting screw rod (30), the length of the connecting rod (11) and the length of the threaded hole (12) are the same.

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