CN202479573U - Spring drill chuck - Google Patents
Spring drill chuck Download PDFInfo
- Publication number
- CN202479573U CN202479573U CN2012201412819U CN201220141281U CN202479573U CN 202479573 U CN202479573 U CN 202479573U CN 2012201412819 U CN2012201412819 U CN 2012201412819U CN 201220141281 U CN201220141281 U CN 201220141281U CN 202479573 U CN202479573 U CN 202479573U
- Authority
- CN
- China
- Prior art keywords
- chuck
- drill
- spring
- drill chuck
- conical cavity
- 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.)
- Expired - Fee Related
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- Gripping On Spindles (AREA)
Abstract
The utility model discloses a spring drill chuck, and relates to a rotary cutting or drilling and chambering tool. The spring drill chuck is provided with a chuck body, wherein a drill chuck assembly hole is formed at the rear end of the chuck body; a conical cavity is formed on the front part of the chuck body; an external resistance (ER) chuck is arranged in the conical cavity; an adjustment nut is arranged on the chuck body at the front end of the conical cavity; and a conical hole matched with the front conical surface of the ER chuck is formed on the inner side of the front end of the adjustment nut. During use, the spring drill chuck is arranged on a main shaft of a drilling machine through the chuck assembly hole; and the size of a drill bit assembly hole in the middle of the ER chuck can be changed by clockwise and anticlockwise rotating the adjustment nut, so a drill bit is clamped or released. The spring drill chuck has a simple structure and is low in manufacturing cost, not easy to damage, long in service life, high in precision and applicable to assembly and use of the drill bit of an electric hand drill or a drill.
Description
Technical field
The utility model relates to rotary cutting or boring reaming tool, says it is a kind of spring drill chuck of simple in structure, long service life in detail.
Background technology
We know; Existingly be used to hole, the electric hand drill or the employed drill chuck of bench drill of reaming be three lobe clip type drill chucks, this drill chuck comprises collet body, three jaws, chuck cover, the collet body rearward end is provided with the drill chuck installing hole; Three jaws are separately positioned in three inclined holes that are distributed on the collet body; Rotating being set on the collet body of chuck cover also with between the jaw is threaded, and chuck cover front end is provided with the locking tooth, and chuck cover rear end is provided with thrust bearing; The rear end of thrust bearing is provided with back-up ring, works as ring after the rear end of collet body is provided with.During use; Three lobe clip type drill chucks are installed on the main shaft of rig through the chuck installing hole; Cooperates with the locking tooth with the bolt die handle and to rotate the chuck cover and three jaws are moved up and down clamp or unclamp drill bit, with loading and unloading or bit change more, this drill chuck complex structure, manufacturing cost height; Reach the easy to wear and damage with the locking between cog of bolt die handle between the screw thread on chuck cover and the jaw, service life is short.
The milling head structure that is used for the clamping milling cutter on the existing milling machine is: the milling head rear portion is provided with the milling head mounting rod; The milling head front portion is provided with conical cavity; Be provided with the ER chuck in the conical cavity; The rear cone of ER chuck matches with conical cavity, and the milling head of conical cavity leading section is provided with adjusting nut, and adjusting nut front end inboard is provided with the bellmouth that matches with the inner cone of ER chuck.Be rotated in the forward adjusting nut, the conical cavity of milling head and the axial distance between the bellmouth on the adjusting nut diminish, and the two conical surface that matches with ER chuck compressing ER chuck makes the cutter installing hole at ER chuck middle part diminish clamp-on tool; The reverse rotation adjusting nut; It is big that the conical cavity of milling head and the axial distance between the bellmouth on the adjusting nut become; The cutter installing hole at ER chuck middle part becomes big, can dismantle cutter, though this clamping structure is simple; But only on the heavy duty machine tools such as milling machine or boring machine application is arranged, do not have similar drill chuck on the drilling tools such as electric hand drill or bench drill.
Summary of the invention
The purpose of the utility model is the deficiency that solves above-mentioned prior art, provides a kind of simple in structure, and low cost of manufacture is not fragile, long service life, the spring drill chuck that precision is high.
The utility model solves the problems of the technologies described above the technical scheme that is adopted:
A kind of spring drill chuck; Be provided with collet body; It is characterized in that the collet body rearward end is provided with the drill chuck installing hole, the collet body front portion is provided with conical cavity, is provided with the ER chuck in the conical cavity; The collet body of conical cavity leading section is provided with adjusting nut, and adjusting nut front end inboard is provided with the bellmouth that matches with the inner cone of ER chuck.
Drill chuck installing hole described in the utility model is a bellmouth.
Drill chuck installing hole described in the utility model is a screwed hole.
During use, the utility model is installed in through the chuck installing hole on the main shaft of rig, forward and reverse rotation adjusting nut changes the diminishing of drill bit installing hole at ER chuck middle part; Clamp or unclamp drill bit with this; The utility model is simple in structure, and low cost of manufacture is not fragile; Long service life, precision is high.The drill bit that is applicable to electric hand drill or bench drill is installed and used.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
The specific embodiment
Spring drill chuck as shown in the figure; Be provided with collet body 2, collet body 2 rearward end are provided with drill chuck installing hole 1, and drill chuck installing hole 1 is used for being connected and installed between spring drill chuck and rig main shaft; Can be the bellmouth that matches with main shaft, also can be the screwed hole that matches with main shaft.Collet body 2 front portions are provided with conical cavity 3, are provided with ER chuck 4 in the conical cavity 3, and the collet body 2 of conical cavity leading section is provided with adjusting nut 5, and adjusting nut 5 front end inboards are provided with the bellmouth that matches with the inner cone of ER chuck.During use, the utility model is installed in through the chuck installing hole on the main shaft of rig, forward and reverse rotation adjusting nut changes the diminishing of drill bit installing hole at ER chuck middle part; Clamp or unclamp drill bit with this; The utility model is simple in structure, and low cost of manufacture is not fragile; Long service life, precision is high.The drill bit that is applicable to electric hand drill or bench drill is installed and used.
Claims (3)
1. spring drill chuck; Be provided with collet body; It is characterized in that the collet body rearward end is provided with the drill chuck installing hole, the collet body front portion is provided with conical cavity, is provided with the ER chuck in the conical cavity; The collet body of conical cavity leading section is provided with adjusting nut, and adjusting nut front end inboard is provided with the bellmouth that matches with the inner cone of ER chuck.
2. spring drill chuck according to claim 1 is characterized in that described drill chuck installing hole is a screwed hole.
3. spring drill chuck according to claim 1 is characterized in that described drill chuck installing hole is a bellmouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201412819U CN202479573U (en) | 2012-04-06 | 2012-04-06 | Spring drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201412819U CN202479573U (en) | 2012-04-06 | 2012-04-06 | Spring drill chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202479573U true CN202479573U (en) | 2012-10-10 |
Family
ID=46954034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201412819U Expired - Fee Related CN202479573U (en) | 2012-04-06 | 2012-04-06 | Spring drill chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202479573U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014841A (en) * | 2012-12-14 | 2013-04-03 | 福建福晶科技股份有限公司 | Device for clamping and centering seed rod by using upper weighing and pulling method |
| CN103691656A (en) * | 2013-12-18 | 2014-04-02 | 北京航空航天大学 | Supersonic amplitude changing bar capable of changing tools rapidly |
| CN105538244A (en) * | 2016-01-28 | 2016-05-04 | 泉州迪特工业产品设计有限公司 | Hand-pressure type rotating handle |
| CN105772785A (en) * | 2014-12-26 | 2016-07-20 | 中核建中核燃料元件有限公司 | Pin hole drilling device for control rod assembly |
| CN110193612A (en) * | 2019-07-02 | 2019-09-03 | 沈阳机床(集团)有限责任公司 | A kind of expansion set structure of bidirectional locking |
-
2012
- 2012-04-06 CN CN2012201412819U patent/CN202479573U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014841A (en) * | 2012-12-14 | 2013-04-03 | 福建福晶科技股份有限公司 | Device for clamping and centering seed rod by using upper weighing and pulling method |
| CN103691656A (en) * | 2013-12-18 | 2014-04-02 | 北京航空航天大学 | Supersonic amplitude changing bar capable of changing tools rapidly |
| CN105772785A (en) * | 2014-12-26 | 2016-07-20 | 中核建中核燃料元件有限公司 | Pin hole drilling device for control rod assembly |
| CN105538244A (en) * | 2016-01-28 | 2016-05-04 | 泉州迪特工业产品设计有限公司 | Hand-pressure type rotating handle |
| CN110193612A (en) * | 2019-07-02 | 2019-09-03 | 沈阳机床(集团)有限责任公司 | A kind of expansion set structure of bidirectional locking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20140406 |