CN102294497A - Combination type self-clamping and key-clamping drill chuck - Google Patents

Combination type self-clamping and key-clamping drill chuck Download PDF

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Publication number
CN102294497A
CN102294497A CN2010102940418A CN201010294041A CN102294497A CN 102294497 A CN102294497 A CN 102294497A CN 2010102940418 A CN2010102940418 A CN 2010102940418A CN 201010294041 A CN201010294041 A CN 201010294041A CN 102294497 A CN102294497 A CN 102294497A
Authority
CN
China
Prior art keywords
matrix
housing
drill chuck
key
claw
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.)
Pending
Application number
CN2010102940418A
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Chinese (zh)
Inventor
J·加米斯罗夫莱斯
J·米塞罗尔丰特
J·罗德里格斯卡诺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Llambrich Precision Sl
Original Assignee
Llambrich Precision Sl
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Llambrich Precision Sl filed Critical Llambrich Precision Sl
Publication of CN102294497A publication Critical patent/CN102294497A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
    • B23B31/1253—Jaws movement actuated by an axially movable member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/38—Keyless chucks for hand tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/078—Hand tools used to operate chucks or to assemble, adjust or disassemble tools or equipment used for turning, boring or drilling

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Drilling And Boring (AREA)

Abstract

The invention relates to a combination type self-clamping and key-clamping drill chuck. The drill chuck comprises a base body (1) connected to a transmission shaft, a casing (2) which can rotate with respect to the base body (1) and define a cavity (3) having cone-shaped inner surface (4), a claw (5) which is disposed in the cavity (3) and is capable of moving between an opening position and a closing position, and a propeller (6) which can move along an axial direction to push the claw (5) to abut against the cone-shaped inner surface (4). The propeller (6) has external threads (7) jointing with internal threads (8) of the base body (1). The base body (1) and the casing respectively have related manual grasping surface units (9, 10). The base body (1) has a tooth ring (11), and the casing (2) has a radial key guiding hole (12) for jointing an auxiliary key, or vice versa.

Description

Combined type is from clamping and key clamping drill chuck
Technical field
The present invention relates to a kind of drill chuck, it has made up and has clamped characteristic and the possibility that clamps (tightening) by means of secondary key certainly.
Background technology
Known one type drill chuck, it is known as from clamping drill chuck, describedly comprises and is suitable for the matrix that is connected with power transmission shaft and is assembled as making it can rotate the housing that still cannot move vertically with respect to matrix from clamping drill chuck.Matrix has the portions of proximal of stretching out from housing and is formed with the first manual grasping surface unit therein.Housing limits the chamber that has cone-shaped inner surface and has the second manual grasping surface unit in the outside.Claw is arranged so that they can be radially and move vertically and be inserted in the drill bit in the chamber or the shank of another instrument with clamping in described chamber internal placement.One propeller is directed in matrix inside so that it can move vertically with respect to housing and cannot rotate.Matrix has the internal thread that engages with described angle of rake external screw thread.Claw engages with radial guide in being formed at propeller and engages with inclined lead part in being formed at separating component, and described separating component is arranged in the chamber between the claw.
Utilize described structure, when matrix when first direction rotates with respect to housing, propeller moves vertically promoting the described cone-shaped inner surface of claw against the chamber so that the claw experience towards closing position axially and radial motion.When matrix when second rightabout rotates with respect to housing, propeller moves in opposite direction vertically to unclamp claw.
The external screw thread of propeller and matrix and internal thread have a pitch, described pitch is selected as in use providing when drill chuck the clamping function certainly of claw when first direction rotates, and when being subjected to manual action on the described first and second manual grasping surface unit of matrix and housing so that matrix allows when second rightabout rotates claw to unclamp easily with respect to housing.
Compare with other mechanism, the mechanism that clamps drill chuck certainly of described type has more accurate advantage, and in described other mechanism, claw moves and has the tooth portion that is threadedly engaged with outside closing sleeve along being formed at ramp way in the matrix.Because the resistance that drill bit or another instrument provide is high more, clamping force is just strong more, and therefore the mentioned function that clamps certainly has firm advantage.Yet it also has some shortcoming.For example, because claw fluffs automatically when matrix rotates in opposite direction, therefore cannot contrary operation from clamping drill chuck, and, therefore be not enough to support to be combined in impact function in some machine from clamping drill chuck because claw trends towards fluffing along with impacting (striking).
Also known one type drill chuck, it is configured to have the secondary key clamping of end protuberance and pinion and unclamp claw by utilization.The end protuberance of secondary key inserts in the redial key bullport that is formed in the matrix, described matrix has ramp way, claw moves along described ramp way, pinion meshes with the gear ring that is formed in the outside closing sleeve simultaneously, and described outside closing sleeve has and the screw thread that is threadedly engaged with that is formed in the claw.The key of described type clamps that drill chuck has can contrary operation and be enough to support the advantage of impactor function, but they are not as accurate from clamping drill chuck.
Summary of the invention
An object of the present invention is to provide a kind of drill chuck, it combines the advantage from advantage that clamps (chucking) drill chuck and key clamping drill chuck.
The present invention reaches before and other purpose by providing a kind of drill chuck to help, and described drill chuck has from clamping the general structure of drill chuck and having made up the version that is used for the execute key clamping.
Drill chuck of the present invention comprises and is used for the matrix that is connected with power transmission shaft, be directed to and it can be rotated coaxially with respect to described matrix and cannot move and limit the housing in the chamber that has cone-shaped inner surface vertically, be disposed in described chamber inner so that they can be between the open and close position claw of motion radially and vertically, and be directed to and make it move vertically and cannot rotate coaxially with respect to described housing to promote the propeller of described claw against described cone-shaped inner surface.Described propeller have be formed at described matrix in the external screw thread that engages of internal thread.Matrix has the first manual grasping surface unit the portions of proximal of stretching out from housing, and housing has the second manual grasping surface unit.
Drill chuck of the present invention comprises two equal embodiments, although they utilize reverse mechanical device to clamp with execute key.In the first embodiment, matrix has gear ring the described portions of proximal of stretching out from housing, and housing has the redial key bullport, and described redial key bullport is positioned as and makes that the pinion and the gear ring of described secondary key meshes when the end of secondary key protuberance inserts in the redial key bullport.In second embodiment, matrix has the redial key bullport the described portions of proximal of stretching out from housing, and housing has gear ring, and described gear ring and described redial key bullport are positioned as and make that the pinion and the gear ring of described secondary key meshes when the end of secondary key protuberance inserts in the redial key bullport.
Therefore, by utilizing mentioned manual grasping surface unit, drill chuck of the present invention can usually be used as from clamping drill chuck, and when being necessary, for example need rotate when being used for the screwdriver function or being used for thread tapping in opposite direction at drill chuck, during particularly or in needs impactor function, it can utilize secondary key to be used as key and clamp drill chuck, and described secondary key can be the type of standardized type and extensive use.
Because its high accuracy and because along the possibility of two direction of rotation work, drill chuck of the present invention pointed out especially to being applicable to medical applications, itself or engage or engage with manual power transmission shaft with the power transmission shaft of portable machine or stationary machines.For this reason, drill chuck of the present invention can be made by stainless steel, and manually the grasping surface unit can comprise a plurality of big relatively and level and smooth depressions, and described depression is around the periphery of matrix and cleaning and the sterilization of circumferential distribution to help drill chuck of housing.For other application, drill chuck can be formed from steel and manual grasping surface unit can comprise traditional embossing.
Description of drawings
According to following detailed description with reference to a plurality of embodiments of appended accompanying drawing, before and other feature and advantage will more fully be understood, in described accompanying drawing:
Fig. 1 passes the viewgraph of cross-section of the combined type of first embodiment of the invention from the axial plane of clamping and key clamping drill chuck, and wherein claw is shown in an open position;
Fig. 2 is the front view of the drill chuck of Fig. 1, and wherein claw is in the close position;
Fig. 3 is the viewgraph of cross-section of the drill chuck of Fig. 1, and the secondary key that wherein engages is in the operating position and claw is in the close position;
Fig. 4 is the perspective view of the drill chuck of Fig. 1, and wherein secondary key engages;
Fig. 5 passes second embodiment of the invention combined type from clamping and the viewgraph of cross-section on the axial plane of key clamping drill chuck, and the secondary key that wherein engages is in the operating position; And
Fig. 6 is the front view of the drill chuck of Fig. 5.
The specific embodiment
At first referring to figs. 1 to 4, the combined type that shows first embodiment of the invention is from clamping and key clamping drill chuck, and described drill chuck comprises the housing 2 that is suitable for the matrix 1 that is connected with the power transmission shaft (not shown) and is directed cannot moving vertically so that it can rotate coaxially with respect to described matrix 1.
Mentioned matrix 1 comprises core component 1a with the portions of proximal of stretching out from housing 2 and the annular element 1b that is permanently connected with described core component 1a its described portions of proximal, housing 2 comprises the distally sleeve 2a that limits the chamber 3 that has cone-shaped inner surface 4 and is permanently connected with described distally sleeve 2a and is arranged to around the nearside sleeve 2b of the core component 1a rotation of matrix 1.Bearing ball 15 is between the nearside sleeve 2b of the core component 1a of matrix 1 and housing 2.
As shown in Figure 4, the first manual grasping surface unit 9 is formed at the outside of the described annular element 1b of matrix 1, and the second manual grasping surface unit 10 is formed at the outside of the distally sleeve 2a of housing 2.The described first and second manual grasping surface unit 9,10 of matrix 1 and housing 2 comprise the coarse part that obtains by annular knurl, although they also can alternatively comprise big relatively and level and smooth depression, described depression is with for example making drill chuck be suitable for medical applications for stainless water-fast and moisture resistance material, because they help its cleaning and sterilization.
Claw 5 is arranged so that they can radially and vertically move in the described chamber of housing 23 internal placement between the open and close position.Propeller 6 has shank 6a and advances head 6b at its far-end.The shank 6a of propeller 6 have be formed at matrix 1 in the external screw thread 7 that engages of internal thread 8.The head 6b of propeller 6 has the radial directed groove traditionally, claw 5 is sliding engaged in described radial directed groove, be furnished with separating component 16 between the inside in chamber 3 claw 5, it has corresponding inclined lead groove, and claw 5 is sliding engaged in described inclined lead groove.
Separating component 16 forms the part of a single body, and described single body maintains static with respect to housing 2 by pin 17, and described separating component 16 also is connected propeller 6 so that they jointly rotate with housing 2.Therefore, by effect (application of force) manually on the first and second manual grasping surface unit 9,10 so that matrix 1 rotates with respect to housing 2 along first direction, because the joint so the propeller of external screw thread 7 and internal thread 8 move vertically towards far-end, the head 6b of propeller 6 promotes claw 5, and 3 cone-shaped inner surface 4 and described claw radially and vertically slide towards closing position against the chamber.
By manually acting on the first and second manual grasping surface unit 9,10 so that matrix 1 rotates with respect to housing 2 along second rightabout, propeller moves vertically towards near-end, the head 6b pulling claw 5 of propeller 6 is owing to exist the inclined lead groove of separating component 16 so described claw 5 radially and vertically to slide towards open position.
Being threadedly engaged with between the corresponding external screw thread 7 of propeller 6 and matrix 1 and the internal thread 8 has a pitch, the selecteed purpose of described pitch be for drill chuck by machine power transmission shaft or by manual power transmission shaft along first direction rotation and drill bit or another instrument since its work provide when rotation is produced resistance claw 5 from clamping action, and in order manually to be applied to it in the described first and second manual grasping surface unit 9,10 so that matrix 1 along second rightabout during with respect to housing 2 rotations permission claw 5 unclamp easily.
In addition, drill chuck of the present invention is configured to secondary key 50 that can be by utilizing general type (Fig. 3 and 4) and is adjacent to described end protuberance 51 and clamps with the coaxial cone pinion 52 of shank 53 and unclamp claw 5, and described secondary key 50 comprises with end protuberance 51 being the shank 53 of end points.Shank 53 generally has connected crosspiece 54 or the like, and it manually is applied to moment of torsion on the shank 53.
In the annular element 1b of mentioned matrix 1, be formed with the circular cone gear ring 11 that has in the face of the tooth portion of the far-end of drill chuck, and in the nearside sleeve 2b of housing 2, be formed with redial key bullport 12.Described gear ring 11 and described redial key bullport 12 are positioned as and make that the pinion 52 of secondary key 50 meshes with gear ring 11 when the end of secondary key 50 protuberance 51 inserts in the redial key bullport 12.
Therefore, secondary key 50 makes matrix 1 with respect to housing 2 rotations along the rotation of a direction, to utilize sufficient clamping force to make claw 5 move to closing position, thereby guaranteeing that if drill chuck is along the direction rotation opposite with the operate as normal direction of rotation during use, claw 5 can not fluff, can not fluff because of the manual force on the first and second manual grasping surface unit 9,10 yet because of the impactor active force that machine applied that is installed on by described matrix 1 wherein.Yet secondary key 50 rotation in opposite direction can be unclamped claw 5.
Fig. 5 shows second embodiment of drill chuck of the present invention, except the way of realization that key clamps, all with above identical about described first embodiment of Fig. 1 to 4.In described second embodiment, the relatively long and redial key bullport 13 of the portions of proximal of the core component 1a of the matrix 1 that stretches out from housing 2 is formed at wherein, and the nearside sleeve 2b of housing 2 is relatively short and have the circular cone gear ring 14 that is formed at its place, end, and wherein tooth portion is in the face of the near-end of drill chuck.Less relatively and its unique purpose of annular element 1b is to provide support for the first manual grasping surface unit 9.
Abovely work with traditional secondary key 50 to be similar to according to the drill chuck of described second embodiment about the described mode of first embodiment, and in two embodiments, be used for clamping and the direction of rotation of unclamping the secondary key 50 of claw all be traditional key clamp drill chuck direction of rotation oppositely.
Do not breaking away under the situation of the scope of the present invention that limits as appended claims, based on shown and described embodiment, those skilled in the art can expect multiple modification pattern and variation scheme.

Claims (7)

1. a combined type is from clamping and key clamping drill chuck, and it comprises:
Be suitable for the matrix (1) that is connected with power transmission shaft;
Housing (2), described housing (2) are directed to and it can be rotated coaxially with respect to described matrix (1) and cannot move vertically, and limit the chamber (3) that has cone-shaped inner surface (4);
It is inner so that described claw (5) can radially and vertically move between the open and close position that claw (5), described claw (5) are disposed in described chamber (3); And
Propeller (6), described propeller (6) is directed to and it can be moved vertically with respect to described housing (2) and cannot rotates coaxially promoting described claw (5) against described cone-shaped inner surface (4), described propeller (6) have be formed at described matrix (1) in the external screw thread (7) that engages of internal thread (8);
Wherein said matrix (1) has the first manual grasping surface unit (9) the portions of proximal of stretching out from described housing (2), and described housing (2) has the second manual grasping surface unit (10),
It is characterized in that, described matrix (1) has gear ring (11) or redial key bullport (13) the described portions of proximal of stretching out from described housing (2), described housing (2) has redial key bullport (13) or have gear ring (14), described gear ring (11 when described matrix has described redial key bullport (13) when described matrix has described gear ring (11), 14) and described redial key bullport (12,13) be positioned as the end protuberance (51) that makes at secondary key (50) and insert described redial key bullport (12,13) pinion (52) of described secondary key (50) and described gear ring (11 in the time of in, 14) engagement.
2. drill chuck according to claim 1, it is characterized in that, described matrix (1) comprises the core component (1a) of the portions of proximal that has described internal thread (8) and stretch out from described housing (2), and the annular element (1b) that the described portions of proximal of stretching out from described housing (2), is permanently connected with described core component (1a), described annular element (1b) has the described gear ring (11) and the described first manual grasping surface unit (9) that is formed at wherein.
3. drill chuck according to claim 2, it is characterized in that, described housing (2) comprises the distally sleeve (2a) that limits described chamber (3) and is permanently connected with described distally sleeve (2a) and is arranged to around the nearside sleeve (2b) of described core component (1a) rotation of described matrix (1) that the wherein said second manual grasping surface unit (10) is formed in the described distally sleeve (2a) and described redial key bullport (12) is formed in the described nearside sleeve (2b).
4. drill chuck according to claim 1, it is characterized in that, described matrix (1) comprises the core component (1a) of the portions of proximal that has described internal thread (8) and stretch out from described housing (2), and the annular element (1b) that the described portions of proximal of stretching out, is permanently connected with described core component (1a) from described housing (2), the wherein said first manual grasping surface unit (9) is formed in the described annular element (1b), and described redial key bullport (13) is formed in the described core component (1a) between described annular element (1b) and described housing (2).
5. drill chuck according to claim 4, it is characterized in that, described housing (4) comprises the distally sleeve (2a) that limits described chamber (3) and is permanently connected with described distally sleeve (2a) and is arranged to around the nearside sleeve (2b) of described core component (1a) rotation of described matrix (1) that the wherein said second manual grasping surface unit (10) is formed in the described distally sleeve (2a) and described gear ring (14) is formed in the described nearside sleeve (2b).
6. according to claim 3 or 5 described drill chucks, it is characterized in that bearing ball (15) is between the described nearside sleeve (2b) of the described core component (1a) of described matrix (1) and described housing (2).
7. according to each described drill chuck in the aforementioned claim, it is characterized in that, the described external screw thread (7) and the described internal thread (8) of described propeller (6) and described matrix (1) have a pitch, described pitch is selected as in use providing when drill chuck the clamping certainly of described claw (5) when first direction rotates, and is subjected to manual action so that described matrix (1) allows described claw (5) to unclamp easily on the described first manual grasping surface unit (9) of described matrix (1) and described housing (2) and the described second manual grasping surface unit (10) when second rightabout rotates with respect to described housing (2).
CN2010102940418A 2010-06-24 2010-09-21 Combination type self-clamping and key-clamping drill chuck Pending CN102294497A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESU201000670 2010-06-24
ES201000670U ES1072879Y (en) 2010-06-24 2010-06-24 COMBINED HOLDER OF SELF-TIGHTENING AND TIGHTENING WITH WRENCH

Publications (1)

Publication Number Publication Date
CN102294497A true CN102294497A (en) 2011-12-28

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Application Number Title Priority Date Filing Date
CN2010102940418A Pending CN102294497A (en) 2010-06-24 2010-09-21 Combination type self-clamping and key-clamping drill chuck

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CN (1) CN102294497A (en)
DE (1) DE202011102272U1 (en)
ES (1) ES1072879Y (en)
FR (1) FR2961730B3 (en)
TW (1) TW201200272A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112572590A (en) * 2019-09-30 2021-03-30 比亚迪股份有限公司 Clutch mechanism, steering system and automobile

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102889870B (en) * 2012-10-22 2015-01-21 无锡市迈日机器制造有限公司 Positioning and centering mechanism
DE102014208805A1 (en) 2014-05-09 2015-11-12 Schaeffler Technologies AG & Co. KG Self-centering chuck for electric hand tools and method for clamping a tool in such a chuck
ES2610053B2 (en) 2015-09-22 2019-11-27 Stryker Corp KEYBOARD HOLDER WITH LOCK DEVICE

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938817A (en) * 1972-11-10 1976-02-17 Roehm Guenter H Chuck for impact-type drill
US4563013A (en) * 1983-03-22 1986-01-07 Hilti Aktiengesellschaft Drill chuck for a hand-held drilling device
US4703942A (en) * 1985-05-08 1987-11-03 Roehm Guenter H Hammer drill
JPS62282805A (en) * 1986-05-30 1987-12-08 Toru Takeishi Drill device
JPH0890316A (en) * 1994-09-27 1996-04-09 Yukiwa Seiko Kk Chuck device
CN2709062Y (en) * 2004-06-11 2005-07-13 山东威达机械股份有限公司 Spanner self-locking drill chuck
CN201033369Y (en) * 2007-05-15 2008-03-12 浙江三鸥机械股份有限公司 Novel clamping head of wrench drill and wrench drill thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938817A (en) * 1972-11-10 1976-02-17 Roehm Guenter H Chuck for impact-type drill
US4563013A (en) * 1983-03-22 1986-01-07 Hilti Aktiengesellschaft Drill chuck for a hand-held drilling device
US4703942A (en) * 1985-05-08 1987-11-03 Roehm Guenter H Hammer drill
JPS62282805A (en) * 1986-05-30 1987-12-08 Toru Takeishi Drill device
JPH0890316A (en) * 1994-09-27 1996-04-09 Yukiwa Seiko Kk Chuck device
CN2709062Y (en) * 2004-06-11 2005-07-13 山东威达机械股份有限公司 Spanner self-locking drill chuck
CN201033369Y (en) * 2007-05-15 2008-03-12 浙江三鸥机械股份有限公司 Novel clamping head of wrench drill and wrench drill thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112572590A (en) * 2019-09-30 2021-03-30 比亚迪股份有限公司 Clutch mechanism, steering system and automobile
CN112572590B (en) * 2019-09-30 2022-11-11 比亚迪股份有限公司 Clutch mechanism, steering system and automobile

Also Published As

Publication number Publication date
ES1072879Y (en) 2011-01-19
FR2961730B3 (en) 2012-08-03
TW201200272A (en) 2012-01-01
ES1072879U (en) 2010-10-01
FR2961730A3 (en) 2011-12-30
DE202011102272U1 (en) 2011-08-31

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Application publication date: 20111228