CN104139376B - Chuck - Google Patents
Chuck Download PDFInfo
- Publication number
- CN104139376B CN104139376B CN201310169138.XA CN201310169138A CN104139376B CN 104139376 B CN104139376 B CN 104139376B CN 201310169138 A CN201310169138 A CN 201310169138A CN 104139376 B CN104139376 B CN 104139376B
- Authority
- CN
- China
- Prior art keywords
- main shaft
- retaining sleeve
- sheath
- mid portion
- chuck
- 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.)
- Active
Links
Abstract
The present invention relates to a kind of chuck, for accommodating and clamping the outside chuck inserted, comprising: main shaft, there is the inner chamber axially arranged along main shaft; Retaining sleeve, accommodates and is limited in described inner chamber, and have the endoporus being used for accommodating and clamping working head axially arranged along main shaft, and the diameter at described retaining sleeve two ends is all greater than the diameter of mid portion, described mid portion is elastic component; And sheath, be sheathed on described main shaft outside, described sheath can move between the primary importance compressing described retaining sleeve and the second place discharging described retaining sleeve.Above-mentioned chuck, during clamping working head, because gripping sleeve two ends size is large, mid portion size is little and be elastic component, therefore after sheath moves compression gripping sleeve, the mid portion of gripping sleeve is understood to internal strain by after the extruding of both sides, can clamp working head after the endoporus of mid portion reduces, clamping structure element is few, and structure is simple, center of gravity easily ensures, assembling is simple.
Description
Technical field
The present invention relates to a kind of chuck, particularly relate to a kind of chuck in order to clamp working head on the power tool such as electric router, brill.
Background technology
Fig. 1 discloses a kind of chuck of traditional power tool, comprises main shaft 910, and main shaft 910 overcoat has collet 920.Collet 920 has and holds the endoporus of retaining sleeve 930, retaining sleeve 930 in order to clamp working head, as the milling cutter of electric router.Locking nut 940 is arranged with outside collet 920.When needs installment work head, loaded by working head in retaining sleeve 930, then screwed by locking nut 940, locking nut 940 makes collet 920 endoporus shrink, and then retaining sleeve 930 endoporus is diminished, and then clamping working head.
The shortcoming of above-mentioned chuck is: clamping structure is made up of collet 920, retaining sleeve 930 and locking nut 940, cause component structural complicated, installation procedure is many, and causes departing from of form and position tolerance owing to installing multiple parts and make deviation of gravity center, produces vibrations; In addition, the clamping process of above-mentioned chuck is a process transmitting clamping force layer by layer, but due to part foozle and part rigidity factor, can cause part and working head fit clearance inconsistent, the more important thing is because part rigidity be difficult to distortion and there is not clamping situation.
Summary of the invention
Based on this, be necessary for the simple chuck of a kind of structure.
A kind of chuck, for accommodating and clamping the outside chuck inserted, comprising:
Main shaft, has the inner chamber axially arranged along main shaft;
Retaining sleeve, accommodates and is limited in described inner chamber, and have the endoporus being used for accommodating and clamping working head axially arranged along main shaft, and the diameter at described retaining sleeve two ends is all greater than the diameter of mid portion, described mid portion is elastic component; And
Sheath, is sheathed on described main shaft outside, and described sheath can move between the primary importance compressing described retaining sleeve and the second place discharging described retaining sleeve.
Wherein in an embodiment, described retaining sleeve is that rigid material obtains, and described mid portion is provided with along the axially extended groove of main shaft.
Wherein in an embodiment, described rigid material is metal.
Wherein in an embodiment, described groove is upwards communicated with the endoporus of described retaining sleeve in main shaft diameter.
Wherein in an embodiment, described groove is provided with multiple, and the excircle along described mid portion is evenly arranged.
Wherein in an embodiment, described sheath and described main shaft spiral connect, and described sheath has the abutting part that can move axially to compress along main shaft described retaining sleeve.
Wherein in an embodiment, described sheath and described main shaft can be arranged by relative sliding, and the elastic component be provided with between described sheath and described main shaft for providing the elastic force being repositioned to primary importance to described sheath, described sheath has the abutting part that can move axially to compress along main shaft described retaining sleeve.
Wherein in an embodiment, described abutting part stretches in the inner chamber of described main shaft or is positioned at described lumen outer.
Wherein in an embodiment, the bottom of described jacket inner wall is provided with the radial connecting portion extended, and described abutting part is arranged at the end of described connecting portion.
Wherein in an embodiment, in described inner chamber, be provided with the step of spacing described retaining sleeve.
Above-mentioned chuck, during clamping working head, because gripping sleeve two ends size is large, mid portion size is little and be elastic component, therefore after sheath moves compression gripping sleeve, the mid portion of gripping sleeve is understood to internal strain by after the extruding of both sides, can clamp working head after the endoporus of mid portion reduces, clamping structure element is few, and structure is simple, center of gravity easily ensures, assembling is simple.
Accompanying drawing explanation
Fig. 1 is the structural representation of conventional clip;
Fig. 2 is the structural representation of the chuck of an embodiment; Wherein working head is in clamped condition;
Fig. 3 is the sectional view of A-A line in Fig. 2;
Fig. 4 is the schematic diagram of retaining sleeve in chuck;
Fig. 5 is the sectional structure chart of retaining sleeve shown in Fig. 4.
Related elements reference numeral in figure is as follows:
100, chuck 110, main shaft 112, inner chamber
114, step 120, retaining sleeve 122, upper end
124, lower end 126, mid portion 1262, groove
128, endoporus 130, sheath 132, connecting portion
134, abutting part 140, housing 200, working head
910, main shaft 920, collet 930, retaining sleeve
940, locking nut
Detailed description of the invention
Below in conjunction with accompanying drawing, the better embodiment of chuck is described.
Please refer to Fig. 2 to Fig. 5, disclose a kind of chuck 100, be used for clamping and release working head 200, chuck 100 can be applied to power tool, as on the power tools such as electric router, spanner, brill.
In one embodiment, chuck 100 comprise main shaft 110, be housed in main shaft 110 be used for lock working head 200 retaining sleeve 120, be enclosed within main shaft 110 outside be used for compression clamping cover 120 sheath 130.Main shaft 110 can be the output shaft of motor, also can be connected with motor shaft, thus makes main shaft 110 realize rotating or ballistic motion.Chuck 100 can clamp dissimilar working head, makes power tool realize different functions, as pressed from both sides fastener head when realizing impact wrench function, and for example clamps milling cutter when realizing Milling Process.
Please refer to Fig. 2, in the present embodiment, chuck 100 also comprises a housing 140.Main shaft 110 is output shafts of motor, and it is contained in housing 140, and one end is the working end of extending housing 140.Main shaft 110 is provided with inner chamber 112 vertically on working end, is used for accommodating working head 200.Inner chamber 112 one end is closed, and other end opening inserts for working head 200.The outside of main shaft 110 is provided with external screw thread (non-label), connects, sheath 130 axially can be moved up and down at main shaft 110 in order to reach spiral with sheath 130.
Retaining sleeve 120 is accommodated and is limited in inner chamber 112.Be provided with the step 114 of spacing retaining sleeve 120 in inner chamber 112 in blind end, make retaining sleeve 120 limited in an upward direction.Certainly, in inner chamber 112, also step 114 can not be set, directly utilize the bottom of the blind end of inner chamber 112 to carry out spacing retaining sleeve 120, but after arranging step 114, main shaft 110 is processed when holing and forming inner chamber 112 more convenient.
Please refer to Fig. 2 to Fig. 4, retaining sleeve 120 comprises the mid portion 126 of upper end 122, lower end 124 and centre, the diameter of upper end 122 and lower end 124 is all greater than the diameter of mid portion 126, and simultaneously retaining sleeve 120 is axially provided with for accommodating and clamping the endoporus 128 of working head along main shaft.Retaining sleeve 120 can be integral structure, also can be fabricated structure, and namely upper end 122, lower end 124 can be assembled on mid portion 126 respectively, also can be one-body molded with mid portion 126.The usual through whole retaining sleeve 120 of endoporus 128, can also utilize the inner chamber 112 of main shaft 110 further when working head 200 is inserted, make chuck 100 in main shaft axially structure relative compact.
Mid portion 126 is axially provided with multiple groove 1262 along main shaft, makes mid portion 126 become an elastic component, namely possess elastically-deformable ability.In the present embodiment, groove 1262 has four, is distributed on the excircle of mid portion 126, but is appreciated that the difference required according to mid portion 126 elastic deformation ability, and the quantity of groove 1262 also can be one, two, three or more; Groove 1262 is communicated with endoporus 128 diametrically, and object is also to ensure that mid portion 126 possesses the elastic deformation ability meeting clamping requirement, and certainly, groove 1262 also can not the wall of through mid portion 126.Diameter due to upper end 122 and lower end 124 is all greater than the diameter of mid portion 126, therefore when overlapping 120 from upper end 122 and lower end 124 press nip respectively, mid portion 126 to internal strain, can only make the endoporus 128 at mid portion 126 place reduce, thus can clamp working head 200.Retaining sleeve 120 obtains for rigid material such as metal, and due to mid portion 126 being provided with groove 1262, therefore mid portion 126 comparatively possesses better elastic deformation ability in two ends.Retaining sleeve 120 also can be obtained by elastomeric material, but obtains with rigid material, is preferably metal, then mid portion 126 can ensure the reliability of clamping better after being out of shape, and there will not be the situation that clamping was lost efficacy.In the present embodiment, by controlling the gap between the endoporus 128 of retaining sleeve 120 and working head 200, can ensure can compress working head 200 at mid portion 126 to during internal strain, generally speaking, need to ensure that working head 200 is in not extruded situation, the fit clearance between endoporus 128 and working head 200 is 0.02 ~ 0.05mm.
It is outside that sheath 130 is enclosed within main shaft 110, itself and main shaft 110 spiral connect, and axially can move up and down at main shaft, are used for retaining sleeve 120 to be pressed on the step 114 in inner chamber 112, make the mid portion 126 of retaining sleeve 120 to internal strain, and then working head 200 can be clamped.
Please refer to Fig. 2, the bottom of sheath 130 inwall is provided with the radial connecting portion 132 extended, and the end of connecting portion 132 is axially provided with the abutting part 134 stretched in the inner chamber 112 of main shaft 110 along main shaft, and abutting part 134 is resisted against on the lower end 124 of retaining sleeve 120.Like this, when sheath 130 moves up relative to main shaft 110, abutting part 134 and step 114 act on retaining sleeve 120 from the two ends of retaining sleeve 120 respectively, make mid portion 126 to internal strain, endoporus 128 diminishes in the aperture at mid portion 126 place, thus working head 200 is clamped.It may be noted that, abutting part 134 can not certainly stretch in the inner chamber 112 of main shaft 110, abutting part 134 also can abut retaining sleeve 120 when main shaft 110 is outside, now, the lower end of retaining sleeve 120 is concordant with main shaft 110 end or to be positioned at the inner chamber 112 of main shaft 110 outside, abutting part 134 also axially can not extend along main shaft, in a word, as long as can compression clamping cover 120 when sheath 130 moves along main shaft 110.
In above-described embodiment, be threaded connection between sheath 130 and main shaft 110, sheath 130 can be moved axially along main shaft, therefore sheath 130 can be a locking nut.Can not certainly be threaded connection between sheath 130 and main shaft 110, as can relative sliding between sheath 130 and main shaft 110, elastic component is set between sheath 130 and main shaft 110 simultaneously, as spring, under normality, sheath 130 is in the primary importance of compression clamping cover 120 under the resilient force of spring, when needs clamping working head 200, Compress Spring makes sheath 130 move to the second place of release gripping sleeve 120, then working head 200 is inserted, and then retracting spring, under the resilient force of spring, sheath 130 returns back to primary importance, thus compression clamping cover 120, and then clamping working head 200.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a chuck, for accommodating and clamping the outside chuck inserted, is characterized in that, comprising:
Main shaft, has the inner chamber axially arranged along main shaft;
Retaining sleeve, accommodates and is limited in described inner chamber, and have the endoporus being used for accommodating and clamping working head axially arranged along main shaft, and the diameter at described retaining sleeve two ends is all greater than the diameter of mid portion, described mid portion is elastic component; And
Sheath, is sheathed on described main shaft outside, and described sheath can move between the primary importance compressing described retaining sleeve and the second place discharging described retaining sleeve.
2. chuck according to claim 1, is characterized in that, described retaining sleeve is that rigid material obtains, and described mid portion is provided with along the axially extended groove of main shaft.
3. chuck according to claim 2, is characterized in that, described rigid material is metal.
4. chuck according to claim 2, is characterized in that, described groove is upwards communicated with the endoporus of described retaining sleeve in main shaft diameter.
5. chuck according to claim 2, is characterized in that, described groove is provided with multiple, and the excircle along described mid portion is evenly arranged.
6. chuck according to claim 1, is characterized in that, described sheath and described main shaft spiral connect, and described sheath has the abutting part that can move axially to compress along main shaft described retaining sleeve.
7. chuck according to claim 1, it is characterized in that, described sheath and described main shaft can be arranged by relative sliding, and the elastic component be provided with between described sheath and described main shaft for providing the elastic force being repositioned to primary importance to described sheath, described sheath has the abutting part that can move axially to compress along main shaft described retaining sleeve.
8. the chuck according to claim 6 or 7, is characterized in that, described abutting part stretches in the inner chamber of described main shaft or is positioned at described lumen outer.
9. the chuck according to claim 6 or 7, is characterized in that, the bottom of described jacket inner wall is provided with the radial connecting portion extended, and described abutting part is arranged at the end of described connecting portion.
10. chuck according to claim 1, is characterized in that, is provided with the step of spacing described retaining sleeve in described inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310169138.XA CN104139376B (en) | 2013-05-09 | 2013-05-09 | Chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310169138.XA CN104139376B (en) | 2013-05-09 | 2013-05-09 | Chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104139376A CN104139376A (en) | 2014-11-12 |
| CN104139376B true CN104139376B (en) | 2016-04-27 |
Family
ID=51848797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310169138.XA Active CN104139376B (en) | 2013-05-09 | 2013-05-09 | Chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104139376B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201091928Y (en) * | 2007-05-30 | 2008-07-30 | 浙江三鸥机械股份有限公司 | Novel self-tightening drill chuck |
| GB2470835A (en) * | 2009-06-05 | 2010-12-08 | Chervon Ltd | Power tool and chuck mechanism |
| CN102000846A (en) * | 2009-08-26 | 2011-04-06 | 喜利得股份公司 | Tool holder |
| CN102773507A (en) * | 2011-05-09 | 2012-11-14 | 苏州宝时得电动工具有限公司 | Clamping head |
| CN202684875U (en) * | 2012-04-24 | 2013-01-23 | 田勤工业股份有限公司 | Chuck structure of pneumatic tool |
| CN203305185U (en) * | 2013-05-09 | 2013-11-27 | 宝时得机械（张家港）有限公司 | Chuck |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10277965A (en) * | 1997-04-01 | 1998-10-20 | Makita Corp | Dust-proof cap of tip tool holding device |
| JP2000042000A (en) * | 1998-07-30 | 2000-02-15 | Yoshida Seiko Kk | Chuck for dental cutting tool |
| JP4177079B2 (en) * | 2002-10-30 | 2008-11-05 | 黒田精工株式会社 | Collet for collet chuck |
| JP2006023689A (en) * | 2004-07-08 | 2006-01-26 | Tetsuo Tanaka | Component and method for holding/fixing optical fiber covering cord |
-
2013
- 2013-05-09 CN CN201310169138.XA patent/CN104139376B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201091928Y (en) * | 2007-05-30 | 2008-07-30 | 浙江三鸥机械股份有限公司 | Novel self-tightening drill chuck |
| GB2470835A (en) * | 2009-06-05 | 2010-12-08 | Chervon Ltd | Power tool and chuck mechanism |
| CN102000846A (en) * | 2009-08-26 | 2011-04-06 | 喜利得股份公司 | Tool holder |
| CN102773507A (en) * | 2011-05-09 | 2012-11-14 | 苏州宝时得电动工具有限公司 | Clamping head |
| CN202684875U (en) * | 2012-04-24 | 2013-01-23 | 田勤工业股份有限公司 | Chuck structure of pneumatic tool |
| CN203305185U (en) * | 2013-05-09 | 2013-11-27 | 宝时得机械（张家港）有限公司 | Chuck |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104139376A (en) | 2014-11-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200995304Y (en) | Fast saw bit clamping device | |
| US7841881B2 (en) | Waterproof cable connector | |
| CN101611519B (en) | electrical splice connector | |
| KR101568053B1 (en) | Clamping mechanism of a cutting tool | |
| JP2007258178A (en) | Axial direction compressed electrical connector for ring-shaped wave coaxial cable | |
| CN101931183B (en) | Cable protecting mechanism | |
| US20170307002A1 (en) | Single side temporary fastener with constant pressure feature | |
| JP2014530773A (en) | Hand-held machine tool | |
| US10272499B2 (en) | Self-locking drill chuck | |
| CN104139376B (en) | Chuck | |
| CN203305185U (en) | Chuck | |
| CN205020909U (en) | Elasticity jump ring and cutter fixed structure with safety lock structure | |
| CN105909641A (en) | Novel unilateral bolt fastener simple to use | |
| TW201446436A (en) | Clamp device | |
| US20060144611A1 (en) | Retaining joint of a cable | |
| CN103612132B (en) | Slow-speed of revolution safeguard protection boring grab | |
| US20110179912A1 (en) | Hand tool | |
| CN203305186U (en) | Chuck | |
| CN104149074B (en) | Chuck | |
| CN215545017U (en) | Lead screw fine tuning formula merry go round machine chuck | |
| CN101725621A (en) | Hinge structure | |
| CN210338131U (en) | Seat post adjusting device and vehicle | |
| US8888420B2 (en) | Tool chucking apparatus | |
| CN203636056U (en) | Saw blade milling cutter handle | |
| CN108177115B (en) | Self-clamping screw electric screwdriver |
Legal Events
| 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 |