CN202387977U - Anti-lock self-tightened drill chuck - Google Patents
Anti-lock self-tightened drill chuck Download PDFInfo
- Publication number
- CN202387977U CN202387977U CN 201120462620 CN201120462620U CN202387977U CN 202387977 U CN202387977 U CN 202387977U CN 201120462620 CN201120462620 CN 201120462620 CN 201120462620 U CN201120462620 U CN 201120462620U CN 202387977 U CN202387977 U CN 202387977U
- Authority
- CN
- China
- Prior art keywords
- drill chuck
- screw
- screw rod
- jaw
- lock
- 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
Images
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The utility model provides an anti-lock self-tightened drill chuck. The anti-lock self-tightened drill chuck comprises a connecting member, a clamping jaw guide frame, clamping jaws and a screw, wherein the connecting member is in a matching connection with a drive machine, the clamping jaw guide frame is coaxial with the connecting member and can rotate relative to the connecting member, the screw is in a threaded connection with a screwed hole in the connecting member, the clamping jaws are in a sliding connection with a guide groove arranged on the clamping jaw guide frame and can be connected onto guide installation grooves in front of the screw in a sliding mode, an external thread on the screw is a left hand thread, the screw extends forward from the back end to form a hole, the screw is enabled to be in a tubular shape, and a plurality of grooves which penetrate through the tube-shaped screw wall and extend forward from the back end of the screw are arranged on the tube-shaped screw wall. According to the anti-lock self-tightened drill chuck, when the force of self-tightened drill chuck for clamping a drilling tool and the matching force of an internal thread of the connecting member and an external thread of the screw are increased gradually, the screw is enabled to move towards the center possibly, an original cylinder changes into a cone with a taper backward, the friction between the self-tightened drill chuck and the drilling tool is small due to small contact surface, therefore the self-tightened drill chuck is convenient to loosen the drilling tool.
Description
Technical field
The utility model relates to keyless drill chuck.
Background technology
In the prior art; The screw rod that keyless drill chuck is provided with the connector that is connected with drive machines, and the jaw leading truck that can with respect to connector rotate coaxial with connector, jaw, is threaded with the screwed hole of centre of connector, jaw is connected on the guiding mounting groove of screw rod front portion slidably.During use, the operation drill chuck relatively rotates jaw leading truck and connector, advances and retreat on the gathering sill on the leading truck through the motion drive jaw of screw rod, thereby clamps and the drilling tool that gets loose.Because the screw flight of keyless drill chuck is a left hand thread; In reality was used, under the bigger situation of load, the drilling tool of its clamping can press from both sides tighter and tighter; Produce locking phenomenon, cause in the operation of keyless drill chuck back off tool and require great effort very much or the situation of Song Bukai.
Summary of the invention
The utility model technical problem to be solved provides a kind of keyless drill chuck of anti-lock, and the own function of self-tightening that it does not influence keyless drill chuck makes the operation of keyless drill chuck back off tool lighter simultaneously.For this reason; The utility model adopts following technical scheme: it comprises the connector that is connected with drive machines, and the jaw leading truck that can with respect to connector rotate coaxial with connector, jaw, the screw rod that is threaded with screwed hole in the connector; Gathering sill on jaw and the jaw leading truck is slidingly connected; Jaw also is connected on the anterior guiding mounting groove of screw rod slidably, and the external screw thread on the screw rod is a left hand thread, and said screw rod extends porose forward from the rear end; The screw rod that makes hole place in a tubular form, the tube wall of said tubulose screw rod has a plurality of grooves tube wall, that extend forward from spiro rod rear end that run through.
On the basis of the technique scheme that adopts the utility model, the utility model also can adopt following further technical scheme simultaneously:
It has one or more said grooves.
It has a plurality of said grooves, and said a plurality of grooves circumferentially evenly distribute along pipe, and the degree of depth of said a plurality of grooves is consistent.
Said groove axially extends forward from the rear end along screw rod.
The bottom of said groove is diameter poroid greater than well width.
Said guiding mounting groove is the skewed slot that favours screw axis, and before its medial extremity was in, after outboard end was in, said jaw was provided with and is installed in the guiding mounting groove and the inclination slide block that cooperates with its slide-and-guide.
Owing to adopt the technical scheme of the utility model; The utility model still possesses function of self-tightening at work; When keyless drill chuck clamping drilling tool was in the use, because the continuous action of load change and inertia, the power of keyless drill chuck clamping drilling tool was increasing.In the utility model, when the power that the internal thread of, connector increasing when the power of keyless drill chuck clamping drilling tool and the external screw thread of screw rod cooperate was also increasing, cooperation just looked like to be that a taper hole is the same with the cooperation of a diminished shaft to connector with screw flight; Thereby produced radially to the power in the center of circle,, made screw flight be divided into several parts owing to offer groove on the screw rod; Surround a circle like number of plate-shaped; Thereby the possibility that its oriented center is moved, along with the increasing of strength, the screw portion that makes said groove place is to center micro-strain; Make its original cylindric cone that tapering is arranged backward that become; The rear threads contact-making surface is just than normally little like this, contact-making surface little its frictional force is little each other, thereby be convenient to the operation that keyless drill chuck unclamps drilling tool.
Description of drawings
Fig. 1 implements the profile sketch map of row 1 for the utility model.
Fig. 2 is the A-A cutaway view of Fig. 1, and the main internal structure of drill chuck is shown.
Fig. 3 is that the utility model implements the explosive view of row 1, and erection sequence and the profile of parts of the parts of drill chuck is shown.
Fig. 4 a is the 3 dimensional drawing that the utility model is implemented the screw rod of row 1.
Fig. 4 b is the front view that the utility model is implemented the screw rod of row 1
Fig. 4 c is the B-B cutaway view of Fig. 4 b.
Fig. 5 illustrates the main internal structure of drill chuck and the profile of drill chuck for the half sectional view of the utility model enforcement row 2.
Fig. 6 is that the utility model implements the explosive view of row 2, and erection sequence and the profile of parts of the parts of drill chuck is shown.
Fig. 7 implements the 3 dimensional drawing of the screw rod of row 2 for the utility model.
The specific embodiment
Embodiment 1, with reference to accompanying drawing 1,2,3,4a, 4b, 4c.
The utility model comprises the connector 1 that is connected with drive machines, and the jaw leading truck 6 that can with respect to connector rotate coaxial with connector, jaw 8, the screw rod 7 that is threaded with screwed hole 12 in the connector; Gathering sill 61 on jaw 8 and the jaw leading truck 6 is slidingly connected; Driving jaw 8 through rotatablely moving of screw rod 7 advances and retreat on gathering sill 61; Jaw 8 also is connected on the anterior guiding mounting groove 72 of screw rod slidably; External screw thread on the screw rod is a left hand thread, and jaw 8 makes jaw clamp or unclamp drilling tool that along the slip of gathering sill 61 and guiding mounting groove 72 said screw rod extends porose 73 forward from the rear end; The screw rod that makes place, hole 73 in a tubular form, the tube wall of said tubulose screw rod has and runs through groove 71 tube wall, that extend forward from spiro rod rear end.
The utility model can be provided with one or more said grooves 72, as long as make the distortion of screw portion under the effect that receives centripetal force at groove 71 place belong to strain, after said centripetal force disappearance, can in time restore and gets final product.The quantity of said a plurality of groove 72 can be 2,3,4 or more a plurality of.When the utility model was provided with a plurality of groove 72, said a plurality of grooves 72 can be along circumferentially evenly the distributing of pipe, and the degree of depth of said a plurality of grooves 72 is preferably consistent.
Said groove 71 axially extending forward along screw rod from the rear end; The bearing of trend of said groove also can be favour screw rod axial; As long as make the distortion of screw portion under the effect that receives centripetal force at groove 71 place belong to strain, after said centripetal force disappearance, can in time restore and get final product.
The bottom of said groove 71 is diameter poroid 74 greater than well width, and this helps to realize above-mentioned strain, and helps work in-process to guarantee that the degree of depth of said a plurality of grooves is consistent.
In the present embodiment, further, said guiding mounting groove 72 is for favouring the skewed slot of screw rod 7 axis, and before its medial extremity was in, after outboard end was in, said jaw 8 was provided with and is installed in the guiding mounting groove 72 and the inclination slide block 81 that cooperates with its slide-and-guide.Like this, when work, 72 pairs of slide blocks 81 of guiding mounting groove can produce radially outside power; Lighter when making the operation that drill chuck unclamps drilling tool; This further technical scheme can be additional to technique scheme and enforcement simultaneously, also can under the situation that does not have above-mentioned groove 71, use separately.
Drawing reference numeral 11 is used for being connected with drive machines for being in the connecting hole coaxial with it of screwed hole 12 rear sides in the connector.Drawing reference numeral 2 is the back cover of keyless drill chuck, and itself and connector are fixed together.Drawing reference numeral 3 is the drill body of keyless drill chuck, and it is enclosed within outside the connector 1 rotationally, its front end be threaded respectively protheca 5 and jaw leading truck 6, and drawing reference numeral 4 is the ball between connector 1 and the drill body.
In the present embodiment, with embodiment 1 different place be:
Added self-locking structure in the keyless drill chuck.Overlap 9 during it also is provided with outside drill body, rotate drill body 3 by cover 9 in the operation, and then drive protheca 5 and 6 rotations of jaw leading truck that its front end is threaded.Self-locking mechanism comprise ratchet 91 in the hole that is installed in rotation on the drill body wall, connector 1 surface a circle ratchet 13 that cooperates with ratchet 91, be used for ratchet release ratchet spring 92, cover inwall the control ratchet cam surface 93, be arranged on positioning ball 94 and spring 95 on the drill body 3, the corresponding respectively ratchets 13 that cooperate with positioning ball 94 and the ratchet 91 of middle cover inwall is in and meshes and two detents 96 of disengaged condition.
In cover 9 realizes by following structure with the driving relationship of drill body 3: middle cover inwall is provided with and promotes drill body 3 respectively towards unclamping the rotation of jaw direction and drawing two planes 97, the surperficial plane 98 that cooperates with plane 97 of drill body that the jaw direction is rotated in.
Other part of present embodiment is identical with embodiment 1, the drawing reference numeral representative identical implication identical with Fig. 1,2,3,4a, 4b, 4c in the present embodiment.
Claims (6)
1. the keyless drill chuck of an anti-lock; Comprise the connector that is connected with drive machines, and the jaw leading truck that can with respect to connector rotate coaxial, jaw, the screw rod that is threaded with screwed hole in the connector with connector; Gathering sill on jaw and the jaw leading truck is slidingly connected; Jaw also is connected on the anterior guiding mounting groove of screw rod slidably, and the external screw thread on the screw rod is a left hand thread, and it is porose to it is characterized in that said screw rod extends forward from the rear end; The screw rod that makes hole place in a tubular form, the tube wall of said tubulose screw rod has a plurality of grooves tube wall, that extend forward from spiro rod rear end that run through.
2. the keyless drill chuck of a kind of anti-lock as claimed in claim 1 is characterized in that it has one or more said grooves.
3. the keyless drill chuck of a kind of anti-lock as claimed in claim 1 is characterized in that it has a plurality of said grooves, and said a plurality of grooves circumferentially evenly distribute along pipe, and the degree of depth of said a plurality of grooves is consistent.
4. like the keyless drill chuck of claim 1,2 or 3 described a kind of anti-locks, it is characterized in that said groove axially extending forward along screw rod from the rear end.
5. the keyless drill chuck of a kind of anti-lock as claimed in claim 4, the bottom that it is characterized in that said groove are diameter poroid greater than well width.
6. the keyless drill chuck of a kind of anti-lock as claimed in claim 1; It is characterized in that said guiding mounting groove is the skewed slot that favours screw axis; Before its medial extremity was in, after outboard end was in, said jaw was provided with and is installed in the guiding mounting groove and the inclination slide block that cooperates with its slide-and-guide.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120462620 CN202387977U (en) | 2011-11-18 | 2011-11-18 | Anti-lock self-tightened drill chuck |
| PCT/CN2012/084447 WO2013071846A1 (en) | 2011-11-18 | 2012-11-12 | Antilock self-tightening drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120462620 CN202387977U (en) | 2011-11-18 | 2011-11-18 | Anti-lock self-tightened drill chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202387977U true CN202387977U (en) | 2012-08-22 |
Family
ID=46662929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120462620 Expired - Fee Related CN202387977U (en) | 2011-11-18 | 2011-11-18 | Anti-lock self-tightened drill chuck |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202387977U (en) |
| WO (1) | WO2013071846A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013071846A1 (en) * | 2011-11-18 | 2013-05-23 | 浙江三鸥机械股份有限公司 | Antilock self-tightening drill chuck |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES8302511A1 (en) * | 1982-02-22 | 1983-01-16 | Micron Sa | Quick action keyless drill chuck |
| US20040069098A1 (en) * | 2002-10-10 | 2004-04-15 | Chang Kuo Chung | Structure of a wrench |
| CN2832375Y (en) * | 2005-09-27 | 2006-11-01 | 浙江三鸥机械股份有限公司 | Locking self-screwed drill chuck |
| CN201033370Y (en) * | 2007-05-25 | 2008-03-12 | 浙江三鸥机械股份有限公司 | Keyless drill chuck having lock |
| US8403339B2 (en) * | 2008-06-18 | 2013-03-26 | Jacobs Chuck Manufacturing Company | Self tightening chuck with an axial lock |
| CN202387977U (en) * | 2011-11-18 | 2012-08-22 | 浙江三鸥机械股份有限公司 | Anti-lock self-tightened drill chuck |
| CN202387979U (en) * | 2011-11-18 | 2012-08-22 | 浙江三鸥机械股份有限公司 | Anti-locking self-tightening drill chuck |
-
2011
- 2011-11-18 CN CN 201120462620 patent/CN202387977U/en not_active Expired - Fee Related
-
2012
- 2012-11-12 WO PCT/CN2012/084447 patent/WO2013071846A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013071846A1 (en) * | 2011-11-18 | 2013-05-23 | 浙江三鸥机械股份有限公司 | Antilock self-tightening drill chuck |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013071846A1 (en) | 2013-05-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102079049B (en) | Tool holder and method for assembling the same | |
| US20180333786A1 (en) | Tool holder and method for producing a tool receiving portion for such a tool holder | |
| CN204019346U (en) | The valve grinder main shaft with positioning and clamping mechanism | |
| CN116276193B (en) | Clamping equipment for boring inner side surface of annular part | |
| CN104057158A (en) | Gear shaping and expanding fixture | |
| CN202921986U (en) | Locking-prevention inner cone drill chuck | |
| CN102699839B (en) | Quickly opened and closed bench clamp and quick sliding and engaging part | |
| CN202387977U (en) | Anti-lock self-tightened drill chuck | |
| CN202655438U (en) | Automatic continuous rotary drilling machine | |
| CN204430326U (en) | A kind of double-purpose type turning attachment | |
| CN202387978U (en) | Anti-lock self-tightening drill chuck | |
| CN202387979U (en) | Anti-locking self-tightening drill chuck | |
| CN102000874B (en) | Clamping fixture for pipe cutting machine | |
| CN112703081B (en) | Electric drive system for machine tool and method for operating the same | |
| CN101961794B (en) | Precise toolsetting mechanism | |
| CN204075830U (en) | Center with Centrifugal Driving Bar | |
| CN101362217B (en) | Clamping head of blanking machine | |
| CN104690325B (en) | A kind of hydraulic expanding die device | |
| CN116037996A (en) | Quick clamping type drill bit assembly and clamping and fixing method thereof | |
| CN206966797U (en) | A kind of gear-hobbing clamp | |
| CN106536986B (en) | Feeding structure body and the gripping device for having the feeding structure body | |
| CN207521774U (en) | New type bit holder | |
| CN104384545A (en) | Outer circle cutting clamp of automobile half-axle sleeve | |
| CN203156117U (en) | Quick-change drill chuck | |
| CN103659379A (en) | Bidirectional flat-nose pliers for machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120822 Termination date: 20141118 |
|
| EXPY | Termination of patent right or utility model |