Drill bit switching mechanism and drilling machine

Abstract

The utility model provides a drill bit switching mechanism and a drilling machine, the drill bit switching mechanism comprises a first switching piece and a second switching piece, the first switching piece comprises a first end and a second end which are opposite in the axial direction of the first switching piece, and a first clamping end face and a second clamping end face which are oppositely arranged in the radial direction of the first switching piece; the first end is provided with a first external thread structure so that the first adapter and a target drilling machine can be rapidly connected and rapidly detached, the second end is provided with a second external thread structure, and the second adapter and the second external thread structure are in threaded connection so that the second adapter and the first adapter can be rapidly connected and rapidly detached. And a connecting structure is arranged on the second adapter and is used for being detachably connected with a target drill bit, so that the target drill bit can be conveniently and quickly replaced.

Description

Technical Field

[0001] The present application belongs to the technical field of drilling machines, and more specifically, relates to a drill bit conversion mechanism and a drilling machine. Background Art

[0002] At present, drilling machines are widely used. In the existing drilling machines, although the drill bit and the drilling machine body can be disassembled, the disassembly process is relatively complicated, resulting in slow disassembly efficiency of the drill bit. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a drill bit conversion mechanism and a drilling machine to solve the technical problem that the drill bit disassembly efficiency of the drilling machine in the prior art needs to be improved.

[0004] To achieve the above objectives, the first aspect of the present application is to provide a drill bit conversion mechanism, comprising:

[0005] The first adapter comprises a first end and a second end opposite to each other in the axial direction thereof, and a first clamping end face and a second clamping end face opposite to each other in the radial direction thereof;

[0006] The first end is provided with a first external thread structure, the first external thread structure is used for detachable connection with the target drilling machine, and the second end is provided with a second external thread structure;

[0007] The second adapter is detachably connected to the second external thread structure. The second adapter is provided with a connecting structure, and the connecting structure is used for detachably connecting to the target drill bit.

[0008] Optionally, a positioning groove is provided in the connecting structure, and the positioning groove is used to limit the position of the target structure relative to the second adapter when the target drill bit is connected to the connecting structure.

[0009] Optionally, the bottom wall of the positioning groove is an arc-shaped curved surface structure.

[0010] Optionally, there are multiple positioning grooves, and the multiple positioning grooves are arranged in the connecting structure along the circumference of the second adapter.

[0011] Optionally, the second adapter includes:

[0012] a drill bit fixing member, detachably connected to the second external thread structure and provided with the connecting structure;

[0013] The sleeve is sleeved on the outer side of the connecting shaft, and the outer side of the sleeve is provided with a knurling structure.

[0014] Optionally, a limiting ring is protruding from the outer wall of the connecting shaft, and the sleeve abuts against the limiting ring.

[0015] Optionally, the connection structure includes:

[0016] The first hole structure extends along the axial direction of the drill bit fixing component and is used for installing a target drill bit.

[0017] The drill bit conversion mechanism provided by the present application has the beneficial effect that, compared with the prior art, the drill bit conversion mechanism provided by the present application includes a first adapter and a second adapter, wherein the first adapter includes a first end and a second end opposite to each other along its axial direction, and a first clamping end face and a second clamping end face opposite to each other along its radial direction, the first end is provided with a first external thread structure so that the first adapter can be quickly connected to and disassembled from a target drilling machine, the second end is provided with a second external thread structure, the second adapter is threadedly connected to the second external thread structure so that the second adapter can be quickly connected to and disassembled from the first adapter, and the second adapter is provided with a connecting structure, the connecting structure is used to be detachably connected to a target drill bit so as to facilitate rapid replacement of the target drill bit.

[0018] In a second aspect, the present application provides a drilling machine, characterized in that it includes:

[0019] Drilling rig body;

[0020] A drill bit conversion mechanism is detachably connected to the drilling rig body, and the drill bit conversion mechanism is any one of the drill bit conversion mechanisms described above.

[0021] The beneficial effect of the drilling machine provided by the present application is that compared with the prior art, the drilling machine provided by the present application includes a drilling machine body and the drill bit conversion mechanism provided above, wherein the drill bit conversion mechanism includes a first adapter and a second adapter, the first adapter is provided with a first external thread structure connected to the target drilling machine, so that the first adapter and the target drilling machine can be quickly connected and quickly disassembled, the first adapter is provided with a second external thread structure, the second adapter is threadedly connected to the second external thread structure, so that the second adapter and the first adapter can be quickly connected and quickly disassembled, and the second adapter is provided with a connecting structure, which is used to be detachably connected to the target drill bit, so as to facilitate rapid replacement of the target drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 A schematic diagram of the structure of a drilling machine provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the structure of a first adapter provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of the structure of the second adapter provided in the embodiment of the present application Figure 1 ;

[0026] Figure 4 A schematic diagram of the structure of the second adapter provided in the embodiment of the present application Figure 2 .

[0027] Among them, the reference numerals in the figure are:

[0028] 10. First adapter; 11. First end; 12. Second end; 13. First clamping end face; 14. Second clamping end face; 15. First external thread structure; 16. Second external thread structure; 20. Second adapter; 21. Drill bit fixing piece; 22. Sleeve; 23. Knurling structure; 24. Limiting ring; 30. Connecting structure; 31. First hole structure; 32. Positioning groove; 40. Drill body. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] Please also read Figures 1 to 4 , the drill bit conversion mechanism and drilling machine provided in the embodiments of the present application are now described.

[0034] A first aspect of the present application is to provide a drill bit conversion mechanism, comprising a first adapter 10 and a second adapter 20 .

[0035] The first adapter 10 includes a first end 11 and a second end 12 which are opposite to each other along the axial direction thereof, and a first clamping end face 13 and a second clamping end face 14 which are opposite to each other along the radial direction thereof. The first end 11 is provided with a first external thread structure 15 which is used for detachably connecting with the target drilling machine, and the second end 12 is provided with a second external thread structure 16.

[0036] By arranging the first clamping end face 13 and the second clamping end face 14 in the radial direction of the first adapter 10 , the first adapter 10 can be connected to or removed from the target drilling machine by a wrench.

[0037] The second adapter 20 is detachably connected to the second external thread structure 16 . A connecting structure 30 is provided on the second adapter 20 . The connecting structure 30 is used for detachably connecting to a target drill bit.

[0038] Compared with the prior art, the drill bit conversion mechanism provided in the present application includes a first adapter 10 and a second adapter 20, wherein the first adapter 10 includes a first end 11 and a second end 12 opposite to each other along its axial direction, and a first clamping end face 13 and a second clamping end face 14 opposite to each other along its radial direction, the first end 11 is provided with a first external thread structure, so that the first adapter 10 can be quickly connected to and disassembled from a target drilling machine, the second end 12 is provided with a second external thread structure, the second adapter 20 is threadedly connected to the second external thread structure, so that the second adapter 20 can be quickly connected to and disassembled from the first adapter 10, and the second adapter 20 is provided with a connecting structure 30, which is used to be detachably connected to a target drill bit, so as to facilitate rapid replacement of the target drill bit.

[0039] In the present application, the connection structure includes a first hole structure 31, which extends along the axial direction of the second adapter 20 and is used to install the target drill bit. A positioning groove is provided on the inner wall of the first hole structure 31, and the positioning groove is used to limit the position of the target structure relative to the second adapter 20 when the target drill bit is connected to the connection structure. The bottom wall of the positioning groove is an arc-shaped curved surface structure. There are multiple positioning grooves, and the multiple positioning grooves are arranged in the connection structure 30 along the circumference of the second adapter 20.

[0040] The outer wall of the target drill bit can be provided with positioning protrusions whose number is equal to the number of the positioning grooves, and the positioning protrusions are accommodated in the positioning grooves.

[0041] Preferably, the number of the positioning grooves is three, and the three positioning grooves are evenly distributed along the circumference of the hole structure.

[0042] In the present application, the second adapter 20 includes a drill bit fixing part 21 and a sleeve 22, the drill bit fixing part 21 is detachably connected to the second external thread structure, and is provided with a connecting structure 30. The sleeve 22 is sleeved on the outside of the connecting shaft, and a knurling structure 23 is provided on the outside of the sleeve 22. By providing the knurling structure 23 on the outside of the sleeve 22, the roughness of the surface of the sleeve 22 is increased, thereby increasing the friction between the sleeve 22 and the operator's hand, so that the operator can screw the sleeve 22 to facilitate the second adapter 20 to be threadedly connected to the first adapter 10 or to be removed from the first connecting part.

[0043] In the present application, a limiting ring 24 is protrudingly provided on the outer wall of the connecting shaft, and the sleeve 22 abuts against the limiting ring 24 to limit the position of the sleeve 22 relative to the connecting shaft.

[0044] In a second aspect, the present application provides a drilling machine, comprising a drilling machine body 40 and a drill bit conversion mechanism. The drill bit conversion mechanism is detachably connected to the drilling machine body 40, and the drill bit conversion mechanism is the drill bit conversion mechanism provided by any of the above embodiments.

[0045] Compared with the prior art, the drilling machine provided in the present application includes a drilling machine body 40 and a drill bit conversion mechanism provided in the above-mentioned embodiment, wherein the drill bit conversion mechanism includes a first adapter 10 and a second adapter 20, the first adapter 10 is provided with a first external thread structure connected to the target drilling machine, so that the first adapter 10 and the target drilling machine can be quickly connected and quickly disassembled, the first adapter 10 is provided with a second external thread structure, the second adapter 20 is threadedly connected to the second external thread structure, so that the second adapter 20 and the first adapter 10 can be quickly connected and quickly disassembled, the second adapter 20 is provided with a connecting structure 30, and the connecting structure 30 is used to be detachably connected to the target drill bit, so as to quickly replace the target drill bit.

[0046] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A drill bit conversion mechanism, characterized in that: include: The first adapter comprises a first end and a second end opposite to each other in the axial direction thereof, and a first clamping end face and a second clamping end face opposite to each other in the radial direction thereof; The first end is provided with a first external thread structure, the first external thread structure is used for detachable connection with the target drilling machine, and the second end is provided with a second external thread structure; The second adapter is detachably connected to the second external thread structure. The second adapter is provided with a connecting structure, and the connecting structure is used for detachably connecting to the target drill bit.

2. The drill bit conversion mechanism according to claim 1, characterized in that: A positioning groove is provided in the connecting structure, and the positioning groove is used to limit the position of the target structure relative to the second adapter when the target drill bit is connected to the connecting structure.

3. The drill bit conversion mechanism according to claim 2, characterized in that: The bottom wall of the positioning groove is an arc-shaped curved surface structure.

4. The drill bit conversion mechanism according to claim 3, characterized in that: There are a plurality of positioning grooves, and the plurality of positioning grooves are arranged in the connection structure along the circumference of the second adapter.

5. The drill bit conversion mechanism according to claim 1 or 4, characterized in that: The second adapter comprises: a drill bit fixing member, detachably connected to the second external thread structure and provided with the connecting structure; The sleeve is sleeved on the outer side of the connecting shaft, and the outer side of the sleeve is provided with a knurling structure.

6. The drill bit conversion mechanism according to claim 5, characterized in that: A limiting ring is convexly provided on the outer wall of the connecting shaft, and the sleeve abuts against the limiting ring.

7. The drill bit conversion mechanism according to claim 6, characterized in that: The connection structure comprises: The first hole structure extends along the axial direction of the drill bit fixing component and is used for installing a target drill bit.

8. A drilling machine, characterized in that: include: Drilling rig body; A drill bit conversion mechanism is detachably connected to the drilling rig body, and the drill bit conversion mechanism is the drill bit conversion mechanism described in any one of claims 1-7.

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