CN103231094B - Quick-change drill chuck - Google Patents
Quick-change drill chuck Download PDFInfo
- Publication number
- CN103231094B CN103231094B CN201310144661.7A CN201310144661A CN103231094B CN 103231094 B CN103231094 B CN 103231094B CN 201310144661 A CN201310144661 A CN 201310144661A CN 103231094 B CN103231094 B CN 103231094B
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- CN
- China
- Prior art keywords
- groove
- drill body
- drill
- drill chuck
- output shaft
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- 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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Abstract
The invention relates to a quick-change drill chuck. A plurality of through grooves which are communicated with central shaft holes are axially formed on the external side of the rear portion of a drill body; an annular groove which is provided with an annular spring ring is circumferentially arranged on the external side of the rear portion of the drill body; an oscillating rod which is in a fishhook shape is embedded in the through groove; a front end hook portion of the oscillating rod is outward grabbed on the annular spring ring from the through groove; an annular blocking groove is arranged in the middle of an output shaft of a main machine; a wedge block which is corresponding to the hook portion of the oscillating rod is arranged in a rear sleeve of the drill chuck; and a groove is arranged on the inner side of the wedge block. The rear sleeve moves backward relative to the drill body to press a transition inclined surface which is arranged on the external side of the rear portion of the oscillating rod; the oscillating rod moves towards an central axis of the drill body; projections on the internal side are pressed into the annular blocking groove of the output shaft of the main machine; and the drill chuck and the output shaft of the main machine are in fastening states. The rear sleeve moves forward to be inserted between the hook portion of the oscillating rod and the annular spring ring; the rear portion of the oscillating rod moves towards the external side; the drill body and the output shaft of the main machine are separated to be locked; and the rapid assembling and disassembling of the drill chuck are achieved. The quick-change drill chuck has the advantages of being reasonable in structure and convenient to operate and use.
Description
Technical field
The present invention relates to drilling attachment in a kind of hardware & tools and machine tool, specifically a kind of with electric drill or the Quick-change drill chuck that matches of the working-spindle of lathe.
Background technology
We know, existing drill chuck is generally made up of drill body, jaw, nut, nut sleeve, bearing, back-up ring, protheca, rear cover.Three jaws are arranged in three decile inclined holes of drill body respectively, nut is arranged in the nut groove of drill body, the screw thread of nut and jaw forms thread transmission, nut sleeve is fixedly connected with nut, protheca is connected with nut or nut sleeve key, rear cover is fixedly connected with drill body, and there are screwed hole or taper hole in drill body rear portion.When installing and using, the screwed hole at drill body rear portion or taper hole are connected with the power transmission shaft of power equipment, drive drill body to drive three-jaw and folded instrument synchronous axial system during drive axis.During clamping tool, hold and relatively rotate protheca and rear cover, the jaw of nut in drill body connected with protheca key is rotated, through the screw-driven of nut and jaw, making jaw move forward in the inclined hole of drill body and clamp pad.
Connection between existing drill chuck and host output shaft or be threaded connection or connected by the conical surface, be threaded and there is certain direction of rotation characteristic, ensure can both transmit enough operation torques in different direction of rotation, drill chuck must apply enough moments of torsion when installing in advance, and the trip bolt that use rotation direction is contrary with drill chuck connecting thread between drill chuck and host output shaft is simultaneously connected; Drill chuck and host output shaft must apply very large axial force therebetween when adopting the conical surface to be connected.When adopting this two kinds of connected modes for these reasons between drill chuck and host output shaft, special instrument must be used just to carry out dismantling and installing, there is a lot of inconvenient part in actual use.
Summary of the invention
Technical problem to be solved by this invention overcomes above-mentioned the deficiencies in the prior art, there is provided a kind of rational in infrastructure, easy for operation, circumferencial direction moment of torsion can be transmitted, conveniently can move axially again, the Quick-change drill chuck of quick despatch between host output shaft and drill chuck can be realized.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of Quick-change drill chuck, it is provided with drill chuck, host output shaft, it is characterized in that: bottom the drill body rear end central axis hole of described drill chuck, be provided with flat type counterbore, drill body rear outside is axially arranged with several grooves communicated with central axis hole, is circumferentially with an annular groove on outside the drill body of groove bottom; One annular elastomeric spring coil is installed in described annular groove; Swing arm is installed with in described groove; Described swing arm is barb-type, and its front end hook portion is from the outside grab of groove on annular elastomeric spring coil, and rear outside is provided with an intermediate incline, and inboard is provided with a projection; It is protruding that described host output shaft front end is provided with the flat type matched with flat type counterbore, and middle part is provided with an annular slot; The rear cover of described drill chuck is arranged on drill body rear portion, is provided with the voussoir corresponding with swing arm hook portion in it, and voussoir inboard is provided with groove; The relative drill body of rear cover can move forward and backward, be positioned two diverse locations, one of them position is locked position, move after overlapping relative drill body behind this position, push down the rear outside intermediate incline of swing arm, swing arm rear portion is moved to drill body central axis, and the projection of swing arm inboard is just in time pressed in the annular slot of host output shaft, axially-movable between drill chuck and host output shaft is restricted, and is in locking state; Another location, after the voussoir front end that puts be inserted between swing arm front end hook portion and annular elastomeric spring coil, annular elastomeric spring coil with after the groove fit that puts locate, after the groove that puts discharge certain space to swing arm, swing arm rear portion is moved laterally, swing arm and drill body and host output shaft go out of lock, and along axis relative motion, can realize drill chuck quick despatch between drill chuck and host output shaft.
The rear end of drill body of the present invention is also provided with annular retaining ring groove, overlaps the back-up ring of movement in annular retaining ring groove after being provided with restriction.
Between rear cover rear end face of the present invention and back-up ring, pad is installed.
Drill body of the present invention is installed with swing arm, the relative drill body of rear cover of drill chuck is positioned two diverse locations, control swing arm rear portion to move or outwards movement to drill body central axis, the projection of swing arm inboard coordinates with the annular slot of host output shaft, is in locking state or releasing orientation.Against existing technologies, the present invention is rational in infrastructure, easy for operation, can effectively transmit circumferencial direction moment of torsion, host output shaft drives drill chuck work, drill body and host output shaft can be made again to go out of lock, conveniently move axially, realize the relative electric drill power transmission shaft of drill chuck fast forwarding and fast rewinding, carry out drill chuck quick change operation.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described further.
Fig. 1 is locking state structural representation of the present invention.
Fig. 2 is releasing orientation structural representation of the present invention.
Fig. 3 is the structural representation of drill body of the present invention.
Fig. 4 is the A-A schematic cross-section of Fig. 3.
Fig. 5 is the structural representation of swing arm of the present invention.
Fig. 6 is the structural representation of host output shaft of the present invention.
Fig. 7 is the structural representation overlapped after the present invention.
Label in figure is: 1. host output shaft, 2. back-up ring, 3. pad, cover 4., 5. swing arm, 6. annular elastomeric spring coil, 7. drill body; 11. flat type are protruding, 12. annular slots, 41. grooves, 42. voussoirs, and 51. is protruding, 52. intermediate incline, 71. flat type counterbores, 72. annular grooves, 73. grooves, 74. annular retaining ring grooves.
Detailed description of the invention
As shown in Figure 1 and Figure 2, a kind of Quick-change drill chuck of the present invention, it is provided with drill chuck, host output shaft 1.Drill chuck includes drill body 7, rear cover 4, protheca, nut, jaw, bearing etc.Three jaws are arranged in three decile inclined holes of drill body respectively, and nut is arranged in the nut groove of drill body, and the screw thread of nut and jaw forms thread transmission, drive jaw protruding come clamping tool.Drill body 7 rear portion is connected with host output shaft 1, drives drill body to drive three-jaw and folded instrument synchronous axial system when host output shaft 1 rotates.During clamping tool, hold and relatively rotate protheca and rear cover, the jaw of nut in drill body connected with protheca key is rotated, through the screw-driven of nut and jaw, making jaw move forward in the inclined hole of drill body and clamp pad.The relation of said structure and coupled parts is same as the prior art, and belong to prior art, this does not describe in detail.
As can be seen from Fig. 3, Fig. 4, be provided with flat type counterbore 71 bottom the drill body 7 rear end central axis hole of drill chuck of the present invention, drill body 7 rear outside is axially arranged with several grooves 73 communicated with central axis hole, can arrange 2-3 groove.An annular groove 72 is circumferentially with on outside the drill body of groove 73 bottom.
The rear end of drill body 7 of the present invention is also provided with annular retaining ring groove 74, overlaps the back-up ring 2 of movement in annular retaining ring groove 74 after being provided with restriction.
Between rear cover 4 rear end face of the present invention and back-up ring 2, pad 3 is installed.
One annular elastomeric spring coil 6 is installed in annular groove 72 of the present invention; Swing arm 5 is installed with in described groove 73.As shown in Figure 5, described swing arm 5 is barb-type, and outwards grab is on annular elastomeric spring coil 6 from groove 73 for its front end hook portion, and rear outside is provided with an intermediate incline 52, and inboard is provided with a projection 51.Described host output shaft 1 front end is provided with the flat type projection 11 matched with flat type counterbore 71, and middle part is provided with an annular slot 12, as shown in Figure 6.Host output shaft 1 drives Quick-change drill chuck work by two sides of flat type projection 11.The rear cover 4 of described drill chuck is arranged on drill body rear portion, and be provided with the voussoir 42 corresponding with swing arm hook portion in it, voussoir inboard is provided with groove 41, as shown in Figure 7.
Overlap 4 relative drill bodies 7 after the present invention and can move forward and backward certain distance, be positioned two diverse locations, one of them position is locked position, rear cover 4 moves to the back-up ring 2 that pad 3 position is fixed in drill body 7 annular retaining ring groove 74 and blocks, as shown in Figure 1, the rear outside intermediate incline 52 that 4 push down swing arm 5 is overlapped behind this position, swing arm 5 rear portion is moved to drill body central axis, the projection 51 of swing arm inboard is just in time pressed in the annular slot 12 of host output shaft, axially-movable between drill chuck and host output shaft is restricted, host output shaft 1 axially can not move, be in locking state.Another location, as shown in Figure 2, rear cover 4 moves forward, voussoir 42 front end on rear cover 4 is inserted between swing arm 5 front end hook portion and annular elastomeric spring coil 6, groove 41 on rear cover 4 embraces annular elastomeric spring coil 6 because of elastic deformation, annular elastomeric spring coil 6 coordinates with the groove 41 on rear cover 4 locates, groove 41 discharges certain space to swing arm 5, swing arm 5 rear portion is moved laterally, away from central axis, the annular slot 12 of protruding 51 Offhost output shafts 1, swing arm 5 and drill body 7 go out of lock with host output shaft 1, can along axis relative motion between drill chuck and host output shaft, realize drill chuck quick despatch.
The present invention is rational in infrastructure, easy for operation, can effectively transmit circumferencial direction moment of torsion, host output shaft drives drill chuck work, drill body and host output shaft can be made again to go out of lock, conveniently move axially, realize the relative electric drill power transmission shaft of drill chuck fast forwarding and fast rewinding, carry out drill chuck quick change operation.
Claims (3)
1. a Quick-change drill chuck, it is provided with drill chuck, host output shaft, it is characterized in that: bottom the drill body rear end central axis hole of described drill chuck, be provided with flat type counterbore, drill body rear outside is axially arranged with several grooves communicated with central axis hole, is circumferentially with an annular groove on outside the drill body of groove bottom; One annular elastomeric spring coil is installed in described annular groove; Swing arm is installed with in described groove; Described swing arm is barb-type, and its front end hook portion is from the outside grab of groove on annular elastomeric spring coil, and rear outside is provided with an intermediate incline, and inboard is provided with a projection; It is protruding that described host output shaft front end is provided with the flat type matched with flat type counterbore, and middle part is provided with an annular slot; The rear cover of described drill chuck is arranged on drill body rear portion, is provided with the voussoir corresponding with swing arm hook portion in it, and voussoir inboard is provided with groove; The relative drill body of rear cover can move forward and backward, be positioned two diverse locations, one of them position is locked position, move after overlapping relative drill body behind this position, push down the rear outside intermediate incline of swing arm, swing arm rear portion is moved to drill body central axis, and the projection of swing arm inboard is just in time pressed in the annular slot of host output shaft, axially-movable between drill chuck and host output shaft is restricted, and is in locking state; Another location, after the voussoir front end that puts be inserted between swing arm front end hook portion and annular elastomeric spring coil, annular elastomeric spring coil with after the groove fit that puts locate, after the groove that puts discharge certain space to swing arm, swing arm rear portion is moved laterally, swing arm and drill body and host output shaft go out of lock, and along axis relative motion, can realize drill chuck quick despatch between drill chuck and host output shaft.
2. Quick-change drill chuck according to claim 1, is characterized in that: the rear end of described drill body is also provided with annular retaining ring groove, is provided with the back-up ring of cover movement after restriction in annular retaining ring groove.
3. Quick-change drill chuck according to claim 1, is characterized in that: be provided with pad between described rear cover rear end face and back-up ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310144661.7A CN103231094B (en) | 2013-04-24 | 2013-04-24 | Quick-change drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310144661.7A CN103231094B (en) | 2013-04-24 | 2013-04-24 | Quick-change drill chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103231094A CN103231094A (en) | 2013-08-07 |
| CN103231094B true CN103231094B (en) | 2015-04-15 |
Family
ID=48879201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310144661.7A Expired - Fee Related CN103231094B (en) | 2013-04-24 | 2013-04-24 | Quick-change drill chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103231094B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117943571B (en) * | 2024-03-26 | 2024-06-28 | 泉州市盛誉机械设备有限公司 | Numerical control automatic tool changing motorized spindle and method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1110939A (en) * | 1993-12-03 | 1995-11-01 | J·D·菲利普斯公司 | Cutter quick change system |
| CN2631281Y (en) * | 2002-12-04 | 2004-08-11 | 杜光浒 | Locking device for self-opening umbrella |
| EP1568444A2 (en) * | 2004-02-09 | 2005-08-31 | HILTI Aktiengesellschaft | Drilling Adapter |
| EP1946894A1 (en) * | 2007-01-18 | 2008-07-23 | Metabowerke GmbH | Quick change tool chuck for rotary hammers or impact drills |
| CN201120476Y (en) * | 2007-12-05 | 2008-09-24 | 宁波立信五金工具有限公司 | Quickly replacing drill chuck |
| CN201214155Y (en) * | 2008-06-07 | 2009-04-01 | 山东威达机械股份有限公司 | Quick-change drill chuck |
| CN201442112U (en) * | 2009-06-12 | 2010-04-28 | 山东威达机械股份有限公司 | Rapid exchange drill chuck |
| CN102166663A (en) * | 2011-04-19 | 2011-08-31 | 南京久驰机电实业有限公司 | Quick-change drill chuck |
| CN203156117U (en) * | 2013-04-24 | 2013-08-28 | 山东威达机械股份有限公司 | Quick-change drill chuck |
-
2013
- 2013-04-24 CN CN201310144661.7A patent/CN103231094B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1110939A (en) * | 1993-12-03 | 1995-11-01 | J·D·菲利普斯公司 | Cutter quick change system |
| CN2631281Y (en) * | 2002-12-04 | 2004-08-11 | 杜光浒 | Locking device for self-opening umbrella |
| EP1568444A2 (en) * | 2004-02-09 | 2005-08-31 | HILTI Aktiengesellschaft | Drilling Adapter |
| EP1946894A1 (en) * | 2007-01-18 | 2008-07-23 | Metabowerke GmbH | Quick change tool chuck for rotary hammers or impact drills |
| CN201120476Y (en) * | 2007-12-05 | 2008-09-24 | 宁波立信五金工具有限公司 | Quickly replacing drill chuck |
| CN201214155Y (en) * | 2008-06-07 | 2009-04-01 | 山东威达机械股份有限公司 | Quick-change drill chuck |
| CN201442112U (en) * | 2009-06-12 | 2010-04-28 | 山东威达机械股份有限公司 | Rapid exchange drill chuck |
| CN102166663A (en) * | 2011-04-19 | 2011-08-31 | 南京久驰机电实业有限公司 | Quick-change drill chuck |
| CN203156117U (en) * | 2013-04-24 | 2013-08-28 | 山东威达机械股份有限公司 | Quick-change drill chuck |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103231094A (en) | 2013-08-07 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20190424 |
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| CF01 | Termination of patent right due to non-payment of annual fee |