CN210172734U - Cylindrical positioning screw handle drill bit - Google Patents
Cylindrical positioning screw handle drill bit Download PDFInfo
- Publication number
- CN210172734U CN210172734U CN201920872427.9U CN201920872427U CN210172734U CN 210172734 U CN210172734 U CN 210172734U CN 201920872427 U CN201920872427 U CN 201920872427U CN 210172734 U CN210172734 U CN 210172734U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- handle
- location
- knife
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 13
- 238000004080 punching Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Drilling Tools (AREA)
Abstract
The utility model belongs to the technical field of the metal cutting machining cutter, concretely relates to screw thread handle drill bit of cylinder location, including handle of a knife and tool bit, the coaxial setting of handle of a knife and tool bit, its characterized in that: the outer disc of handle of a knife on for fastening screw, the connecting portion of handle of a knife and tool bit are provided with cylindric location cylinder, location cylinder's diameter is not less than fastening screw's major diameter, add location cylinder on this device, connect the fastening through the screw thread pair between drill bit and the drill bit anchor clamps, the top of drill bit anchor clamps sets up to the hole, the internal surface of hole contacts with the outer disc of location cylinder on the drill bit, the face contacts with the face between the two, the machining precision of the face of cylinder is higher than the machining precision of screw thread in the technology, obtain the assurance more easily, through the cylindrical location of location, the straightness accuracy of this drill bit is better, the precision of punching is higher.
Description
Technical Field
The utility model belongs to the technical field of metal cutting machining cutter, concretely relates to screw thread handle drill bit of cylinder location.
Background
The drill bit is the drilling tool that general in the trade at present, and the drill bit mainly comprises handle of a knife and tool bit, and wherein the most common shape of handle of a knife is round handle and square handle, and the handle of a knife of these two kinds of shapes system all is through the drilling tool of the frictional force centre gripping between drill bit anchor clamps and the handle of a knife surface, and the precision of punching of this kind of centre gripping mode is not high.
In the industry, a fastening thread is arranged on the outer circular surface of a handle of a drill bit, the fastening thread is connected with a drill bit clamp through a thread pair, the connection area of the drill handle and the drill bit clamp is larger, the looseness between the drill handle and the drill bit clamp is greatly reduced, and the hole machining precision is improved. However, the accuracy of the thread is likely to change significantly during the machining of the thread, and since there are many points or surfaces that come into contact or interfere with each other during the connection of the thread, the drilling accuracy of such a drill is greatly affected by the accuracy of the thread and the thread pair.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the not enough of prior art and provide a screw thread handle drill bit of cylinder location.
The utility model discloses a realize like this: the utility model provides a screw thread handle drill bit of cylinder location, includes handle of a knife and tool bit, handle of a knife and the coaxial setting of tool bit, its characterized in that: the outer disc of handle of a knife on be fastening screw thread, the connecting portion of handle of a knife and tool bit is provided with cylindric location cylinder, the diameter of location cylinder is not less than fastening screw thread's major diameter.
Further optimizing, the outer circle surface of the positioning cylinder is provided with a wear-resistant layer.
Preferably, the wear-resistant layer is made of one of a hard chromium layer and a carburized layer.
Compared with the prior art, the beneficial effects of the utility model are that: in the process of machining the thread, the machining precision of the thread is limited by a thread machining method, and the machining precision of the thread is not high, so that the straightness of the drill bit is not good only by tightening the thread. Add the location cylinder on this device, through the vice fastening of being connected of screw thread between drill bit and the drill bit anchor clamps, the top of drill bit anchor clamps sets up to the hole, the internal surface in hole and the drill bit on the cylindrical outer disc of location contact, the face contacts with the face between the two, the machining precision of face of cylinder is higher than the machining precision of screw thread in the technology, obtain the assurance more easily, through the cylindrical location of location, the straightness accuracy of this drill bit is better, the precision of punching is higher, by a wide margin improvement the clamping precision and the drilling machining precision of drill bit.
Drawings
Fig. 1 is a schematic structural diagram of the device.
Fig. 2 is a schematic view of the device in combination with a drill chuck.
Detailed Description
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and to those skilled in the art, the present invention can be variously modified and changed, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a screw thread handle drill bit of cylinder location, includes handle of a knife and tool bit, handle of a knife and the coaxial setting of tool bit, its characterized in that: the outer disc of handle of a knife on be fastening screw thread, the connecting portion of handle of a knife and tool bit is provided with cylindric location cylinder, the diameter of location cylinder is not less than fastening screw thread's major diameter.
2. The cylindrically oriented threaded shank drill bit of claim 1, wherein: and the outer circular surface of the positioning cylinder is provided with a wear-resistant layer.
3. The cylindrically oriented threaded shank drill bit of claim 1, wherein: the wear-resistant layer is made of one of a hard chromium layer or a carburized layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920872427.9U CN210172734U (en) | 2019-06-12 | 2019-06-12 | Cylindrical positioning screw handle drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920872427.9U CN210172734U (en) | 2019-06-12 | 2019-06-12 | Cylindrical positioning screw handle drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210172734U true CN210172734U (en) | 2020-03-24 |
Family
ID=69837127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920872427.9U Active CN210172734U (en) | 2019-06-12 | 2019-06-12 | Cylindrical positioning screw handle drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210172734U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227866A (en) * | 2019-06-12 | 2019-09-13 | 河南一工钻业有限公司 | The thread handle drill bit of cylinder positioning |
-
2019
- 2019-06-12 CN CN201920872427.9U patent/CN210172734U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227866A (en) * | 2019-06-12 | 2019-09-13 | 河南一工钻业有限公司 | The thread handle drill bit of cylinder positioning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 8 Dongqiang Road, Xindong Industrial Agglomeration Zone, Xinxiang City, Henan Province Patentee after: Henan Heyi Precision Tools Co.,Ltd. Country or region after: China Address before: No.8, Dongqiang Road, Xindong industrial cluster, Xinxiang City, Henan Province Patentee before: HENAN YIGONG DRILLING INDUSTRY CO.,LTD. Country or region before: China |
|
| CP03 | Change of name, title or address |