CN2406753Y - Locking type drill chuck - Google Patents
Locking type drill chuck Download PDFInfo
- Publication number
- CN2406753Y CN2406753Y CN 00213251 CN00213251U CN2406753Y CN 2406753 Y CN2406753 Y CN 2406753Y CN 00213251 CN00213251 CN 00213251 CN 00213251 U CN00213251 U CN 00213251U CN 2406753 Y CN2406753 Y CN 2406753Y
- Authority
- CN
- China
- Prior art keywords
- protheca
- elastic component
- cover
- ratchet
- drill body
- 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
Links
- 241001656951 Protheca Species 0.000 claims description 39
- 238000005553 drilling Methods 0.000 abstract description 7
- 241001074085 Scophthalmus aquosus Species 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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- Gripping On Spindles (AREA)
Abstract
The utility model relates to a locking drill chuck, it comprises back cover, the brill body, bearing pad, bearing, screw cover, elastic component, well cover, front cover fender lid etc. bores body front end excircle and is equipped with the ratchet, is equipped with the recess on the front cover inner wall circumference, is equipped with on the circumference of well cover with front cover recess matched with protruding, still establishes the elastic component in it, well cover and elastic component constitute detent mechanism, the front cover forms positioning mechanism with well cover. The utility model has the advantages of locking function can not become flexible because of vibration or impact messenger drilling tool during the use, and it is rational in infrastructure to have, stable performance, reliable operation, safe in utilization, is applicable to the clamping of various drilling tools.
Description
The utility model relates to a kind of drilling tool clamping device, specifically a kind of locking type clamping head of drill.
We know, existing drill chuck is by drill body, jaw, screw, nut sleeve, bearing, bearing gasket, protheca, the back cover waits composition, the back cover, bearing gasket interference respectively is connected on the drill body, three jaws are installed in respectively in the inclined hole of three five equilibriums on the drill body, screw is installed in the screw groove of drill body, threaded engagement on screw and the jaw forms thread transmission, nut sleeve and screw interference fit, nut sleeve is provided with protheca outward, and the protheca inwall is provided with key, nut sleeve is provided with keyway, protheca is connected through key with nut sleeve, and is moving for preventing the protheca string, at drill body front end interference fit joint door, during use, hand is twisted the protheca rotation, and protheca drives screw through nut sleeve and rotates, and screw drives in the inclined hole of jaw on drill body through screw thread and moves forward and backward, thereby three-jaw is opened or closure, to reach the purpose of unclamping or clamping drilling tool.In the said structure, the clamping of screw and jaw only forms by the transmission of screw thread, and drill chuck is when work, and particularly during percussive drilling or external force when disturbing, drill chuck is very easily loosening, makes drill bit produce skidding, has a strong impact on operating efficiency, poor stability.
The purpose of this utility model is exactly to provide a kind of rational in infrastructure in order to overcome above-mentioned the deficiencies in the prior art, has locking function, high efficiency, safe in utilization, locking type clamping head of drill efficiently.
For achieving the above object, a kind of locking type clamping head of drill of the utility model, include drill body, jaw, bearing gasket, bearing, screw, nut sleeve, protheca and back cover, it is characterized in that drill body front end cylindrical is provided with ratchet, protheca inwall circumference is provided with groove, its top is provided with axial projection, the outer interference of nut sleeve connects an intermediate sleeve, the circumference of intermediate sleeve is provided with the projection that matches with the protheca groove, also be provided with elastic component in it, elastic component one end is provided with ratchet, and protheca can be relative to partly rotating with intermediate sleeve, during rotation, ratchet and the ratchet engagement on the drill body or the disengagement of the axial projection of protheca compressing elastic component.
The utility model has overcome the deficiency that existing drill chuck does not have locking device or locking device poor performance owing to adopt said structure.It manipulates fast, reliable, safety, convenience, has advantages such as rational in infrastructure, easy to assembly, stable performance, reliable operation, is applicable to the clamping device of various drilling tools.
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 be among the utility model Fig. 1 A-A to schematic diagram;
Fig. 3 is the schematic diagram of intermediate sleeve;
Fig. 4 is the schematic diagram of protheca;
Fig. 5 is the schematic diagram of drill body front end ratchet.
As shown in Figure 1, a kind of locking type clamping head of drill of the utility model, it is provided with parts such as drill body 1, back cover 2, bearing gasket 3, bearing 4, screw 5, nut sleeve 6, jaw 9, protheca 10, protheca door 11, and the pass of its structure and coupled parts is a prior art, and this does not describe in detail.
As Fig. 3, Fig. 4 and shown in Figure 5, the utility model drill body 1 front end cylindrical be provided with ratchet 1 ', ratchet 1 ' fall, the purpose that can't throw off when reaching locking towards a side; Protheca 10 inner tops be provided with an axial projection 10 ', protheca 10 inwall circumference are provided with groove 10 "; Establish intermediate sleeve 7 between nut sleeve 6 and the protheca 10, its interference fit is in the nut sleeve outside, its circumference be provided with protheca 10 inwall circumference on groove 10 " projection 7 that matches ', establish elastic component 8 in the intermediate sleeve 7.
From Fig. 2, can clearly be seen that, the matching relationship of intermediate sleeve 7 and elastic component 8, protheca 10, drill body 1, the detent mechanism that intermediate sleeve 7 and elastic component 8 are formed again with drill body 1 on ratchet 1 ' formation retaining mechanism, axial projection 10 in the protheca 10 ' when relatively rotating, can contact with elastic component 8, make elastic component 8 distortion or do not contact, make elastic component 8 be in original state, the projection 7 on the intermediate sleeve 7 ' with protheca 10 inwall circumference on groove 10 " the formation detent mechanism matches.
The utility model is when work, by turning protheca 10, protheca 10 and intermediate sleeve 7, elastic component 8, the detent mechanism of drill body 1 formation and the effect of retaining mechanism drive nut sleeve 6 and rotate screws 5, thereby jaw 9 is moved up and down, the purpose that reaches locking and unclamp drill bit.Rotate counterclockwise protheca 10, when rotation protheca 10 overcomes the elastic force of elastic component 8, axial projection 10 in the protheca 10 ' pulling elastic component 8 is out of shape, ratchet 1 on the disengaging drill body 1 ', simultaneously, the projection 7 of intermediate sleeve 7 ' distortion slides in another groove in the groove of protheca 10, and be in disengaged condition and can adorn drill bit this moment; Clockwise rotate protheca 10, when the external force of rotating protheca 10 less than the projection 7 of intermediate sleeve 7 ' elastic force the time, protheca 10 continues to drive intermediate sleeve, nut sleeve, screw rotation, promoting jaw dwindles gripping range, when reaching the drill bit of clamping, rotate this moment the external force of protheca 10 greater than the elastic bumps 7 of intermediate sleeve 7 ' elastic force the time, protheca 10 slides in another groove from a groove, axial projection 10 in the protheca 10 ' also be separated from elastic component 8, elastic component 8 be in free state and with drill body 1 on ratchet 1 ' engagement, be in the locking drill bit state this moment.
The utlity model has locking function, use fast, convenient, can or not impact because of vibration making brill Tool is loosening, and it is excellent to have rational in infrastructure, easy to assembly, stable performance, reliable operation, use safety etc. Point is applicable to the clamping of various drilling tools.
Claims (1)
1, a kind of locking type clamping head of drill, include drill body, jaw, bearing gasket, bearing, screw, nut sleeve, protheca and back cover, it is characterized in that drill body front end cylindrical is provided with ratchet, protheca inwall circumference is provided with groove, its top is provided with axial projection, the outer interference of nut sleeve connects an intermediate sleeve, its circumference is provided with the projection that matches with the protheca groove, also be provided with elastic component in it, elastic component one end is provided with ratchet, protheca can be relative to partly rotating with intermediate sleeve, and during rotation, the axial projection of protheca is oppressed ratchet and the ratchet engagement on the drill body or the disengagement of elastic component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00213251 CN2406753Y (en) | 2000-01-19 | 2000-01-19 | Locking type drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00213251 CN2406753Y (en) | 2000-01-19 | 2000-01-19 | Locking type drill chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2406753Y true CN2406753Y (en) | 2000-11-22 |
Family
ID=33579576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00213251 Expired - Fee Related CN2406753Y (en) | 2000-01-19 | 2000-01-19 | Locking type drill chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2406753Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393460C (en) * | 2003-07-03 | 2008-06-11 | 山高刀具公司 | Tool for chip removing machining with adjustable countersinking drill |
| CN110508839A (en) * | 2019-07-02 | 2019-11-29 | 山东威达雷姆机械有限公司 | A kind of anti-loosening locking drill chuck |
-
2000
- 2000-01-19 CN CN 00213251 patent/CN2406753Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393460C (en) * | 2003-07-03 | 2008-06-11 | 山高刀具公司 | Tool for chip removing machining with adjustable countersinking drill |
| CN110508839A (en) * | 2019-07-02 | 2019-11-29 | 山东威达雷姆机械有限公司 | A kind of anti-loosening locking drill chuck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |