CN220028777U - Hollow drill bit structure - Google Patents
Hollow drill bit structure Download PDFInfo
- Publication number
- CN220028777U CN220028777U CN202321603613.5U CN202321603613U CN220028777U CN 220028777 U CN220028777 U CN 220028777U CN 202321603613 U CN202321603613 U CN 202321603613U CN 220028777 U CN220028777 U CN 220028777U
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- CN
- China
- Prior art keywords
- drill
- mounting hole
- mount pad
- bit
- tool bit
- Prior art date
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Links
- 238000005553 drilling Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000003754 machining Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Drilling Tools (AREA)
Abstract
The utility model discloses a hollow drill bit structure, which comprises: the drill handle connecting portion, the inside of drill handle connecting portion is provided with the mounting hole and the inside of mounting hole is provided with the mount pad, the mutual gomphosis between mount pad and the mounting hole, the side of mount pad is provided with bit body and integrated into one piece between bit body and the mount pad. The drill handle connecting part is internally provided with the mounting hole, the mounting seat is arranged in the mounting hole, the mounting seat and the mounting hole are mutually embedded, the drill handle connecting part is convenient to mount, the drill body is arranged on the side face of the mounting seat, the drill body and the mounting seat are integrally formed, the head end of the drill body is provided with the tool bit, the inside of the tool bit is provided with the through hole, the drill body is of a hollow structure, the inside of the tool bit is provided with a plurality of groups of flat-mouth grooves, and the surface of the tool bit is provided with a plurality of groups of arc-shaped grooves.
Description
Technical Field
The utility model relates to the technical field of hollow drill bits, in particular to a hollow drill bit structure.
Background
Hollow drill bits are also known as core drill bits, hole openers, center drill bits, steel plate drill bits, magnetic drill bits, rail drill bits, and the like. The drill bit is mainly made of the following materials: high-speed steel; powder metallurgy; cemented carbide. The hollow drill is complete in variety and specification, and is suitable for various brands of imported magnetic drills (magnetic drills), universal drilling machines, milling machines, boring machines and the like. The product is matched with an imported magnetic drill bit for use, and the drilling efficiency is 8-10 times that of a common drill bit.
The hollow drill (multi-blade steel plate drill is also called or core drill) is an efficient drill with multiple blades for annular cutting, the drilling diameter is from 12mm to 150mm, the hollow drill is mainly used for drilling steel components, such as steel structural engineering, rail transit, bridges, ships, machine manufacturing, aerospace and other hole machining fields, the drilling performance of the hollow drill is obviously superior to that of the traditional two-blade twist drill, the hollow drill has the characteristics of high drilling efficiency and light, fast and labor-saving drilling, the multi-blade steel plate drill and the magnetic seat drill are matched to drill large-sized workpieces in multiple directions, the operation is convenient and flexible, the engineering construction time is effectively shortened, and the hollow drill becomes a preferred tool for modern steel component drilling and annular groove machining.
When the hollow drill works, the connection part between the drill main body and the drill handle is also easy to deform, break and damage. Therefore, a new solution is needed.
Disclosure of Invention
The utility model aims to provide a hollow drill bit structure, which solves the problem that the connection part between a drill bit main body and a drill bit handle is easy to deform, break and damage when the hollow drill bit works.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a core bit structure comprising: the drill shank connecting portion, the inside of drill shank connecting portion is provided with the inside of mounting hole and mounting hole is provided with the mount pad, mutual gomphosis between mount pad and the mounting hole, the side of mount pad is provided with integrated into one piece between drill bit body and the mount pad, the head end of drill bit body is provided with the inside of tool bit and is provided with the through-hole, the inside of tool bit is provided with the surface of a plurality of groups plain end groove and tool bit and is provided with a plurality of groups arc wall.
As a preferred embodiment of the present utility model, the bit body has a hollow structure.
As a preferred embodiment of the utility model, the surface of the drill shank connecting part is provided with a plurality of groups of anti-skid lugs which are distributed at equal intervals.
As a preferred embodiment of the utility model, a plurality of groups of clamping grooves are arranged in the mounting seat, and clamping blocks matched with the clamping grooves are arranged in the mounting hole.
Compared with the prior art, the utility model has the following beneficial effects:
the drill handle connecting part is internally provided with the mounting hole, the mounting seat is arranged in the mounting hole, the mounting seat and the mounting hole are mutually embedded, the drill handle connecting part is convenient to mount, the drill body is arranged on the side face of the mounting seat, the drill body and the mounting seat are integrally formed, the head end of the drill body is provided with the tool bit, the inside of the tool bit is provided with the through hole, the drill body is of a hollow structure, the inside of the tool bit is provided with a plurality of groups of flat-mouth grooves, and the surface of the tool bit is provided with a plurality of groups of arc-shaped grooves.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model.
In the figure: 1. a drill shank connection; 2. an anti-slip bump; 3. a mounting hole; 4. a mounting base; 5. a clamping groove; 6. a bit body; 7. a cutter head; 8. a through hole; 9. a flat slot; 10. an arc-shaped groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, the present utility model provides a technical solution: a core bit structure comprising: the drill shank connecting portion 1, the inside of drill shank connecting portion 1 is provided with mounting hole 3 and the inside of mounting hole 3 is provided with mount pad 4, mutual gomphosis between mount pad 4 and the mounting hole 3, integrated into one piece is provided with between drill bit body 6 and the mount pad 4 to the side of mount pad 4, the head end of drill bit body 6 is provided with tool bit 7 and the inside of tool bit 7 is provided with through-hole 8, the inside of tool bit 7 is provided with the surface of a plurality of groups of flat-nose groove 9 and tool bit 7 and is provided with a plurality of groups of arc grooves 10, and the inside of drill shank connecting portion 1 is provided with mounting hole 3 and the inside of mounting hole 3 is provided with mount pad 4, and mutual gomphosis between mount pad 4 and the mounting hole 3 is convenient for install, is provided with drill bit body 6 and mount pad 4 between integrated into one piece, is provided with through-hole 8 at the head end of drill bit body 6 and the inside of tool bit 7, makes drill bit body 6 be hollow column structure, is provided with the surface of a plurality of groups of flat-nose groove 9 and 7 and tool bit 7 and is provided with the surface of a plurality of groups of arc groove 10, has guaranteed that this tool bit 7 has set up the tool bit 7 simultaneously, has increased the friction force of 7 simultaneously.
Further improved, as shown in fig. 1: the drill bit body 6 is of a hollow structure, and the arrangement is convenient for sampling.
Further improved, as shown in fig. 1: the surface of the drill shank connecting part 1 is provided with a plurality of groups of anti-skid convex blocks 2, and the anti-skid convex blocks 2 are distributed at equal intervals, so that the drill shank connecting part is convenient to connect and fix.
Further improved, as shown in fig. 1: the inside of mount pad 4 is provided with a plurality of groups draw-in groove 5 and the inside of mounting hole 3 is provided with the fixture block that matches each other with draw-in groove 5, and this kind of setting is convenient for install and dismantle to guarantee the fastness of installation.
Working principle: the inside of drill shank connecting portion 1 is provided with mounting hole 3 and the inside of mounting hole 3 is provided with mount pad 4, mutual gomphosis between mount pad 4 and the mounting hole 3, this kind of setting is convenient for install, be provided with bit body 6 and mount pad 4 between integrated into one piece in the side of mount pad 4, be provided with tool bit 7 and tool bit 7's inside at bit body 6's head end is provided with through-hole 8, make bit body 6 be hollow structure, be provided with a plurality of groups flat mouth groove 9 and tool bit 7's surface at tool bit 7's inside is provided with a plurality of groups arc wall 10, this kind of setting is when guaranteeing tool bit 7 structural strength, make things convenient for the waste material to discharge, the frictional force of tool bit 7 has been increased simultaneously.
While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The last points to be described are: first, in the description of the present utility model, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (4)
1. A hollow drill structure, characterized in that: comprising the following steps: drill shank connecting portion (1), the inside of drill shank connecting portion (1) is provided with mounting hole (3) and mounting hole (3) is provided with mount pad (4), mutual gomphosis between mount pad (4) and mounting hole (3), integrated into one piece between side of mount pad (4) is provided with drill bit body (6) and mount pad (4), the head end of drill bit body (6) is provided with tool bit (7) and tool bit (7) inside is provided with through-hole (8), the inside of tool bit (7) is provided with a plurality of groups plain end groove (9) and the surface of tool bit (7) is provided with a plurality of groups arc wall (10).
2. A hollow drill bit structure according to claim 1, wherein: the drill body (6) is of a hollow structure.
3. A hollow drill bit structure according to claim 1, wherein: the surface of the drill shank connecting part (1) is provided with a plurality of groups of anti-skid lugs (2), and the anti-skid lugs (2) are distributed at equal intervals.
4. A hollow drill bit structure according to claim 1, wherein: the inside of mount pad (4) is provided with a plurality of groups draw-in groove (5) and the inside of mounting hole (3) is provided with the fixture block with draw-in groove (5) mutual match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321603613.5U CN220028777U (en) | 2023-06-25 | 2023-06-25 | Hollow drill bit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321603613.5U CN220028777U (en) | 2023-06-25 | 2023-06-25 | Hollow drill bit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220028777U true CN220028777U (en) | 2023-11-17 |
Family
ID=88736348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321603613.5U Active CN220028777U (en) | 2023-06-25 | 2023-06-25 | Hollow drill bit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220028777U (en) |
-
2023
- 2023-06-25 CN CN202321603613.5U patent/CN220028777U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |