CN201055921Y - Self-locking type clamping head of hand-locking drill - Google Patents
Self-locking type clamping head of hand-locking drill Download PDFInfo
- Publication number
- CN201055921Y CN201055921Y CNU200720111257XU CN200720111257U CN201055921Y CN 201055921 Y CN201055921 Y CN 201055921Y CN U200720111257X U CNU200720111257X U CN U200720111257XU CN 200720111257 U CN200720111257 U CN 200720111257U CN 201055921 Y CN201055921 Y CN 201055921Y
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- China
- Prior art keywords
- drill
- locking
- nut
- self
- control
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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 utility model provides a self-locking hand-tight drill clamping head, which comprises a drill body, a clamping claw, a nut, a thread connection between the clamping claw and the nut, the drill clamping head is also arranged with a encircles a drill body on the front side of the nut and a front ring-shaped body can't rotate relative to the drill body, the rear end surface of the front ring-shaped body is arranged with self-locking matched teeth, the nut front end surface is arranged with teeth matched with the teeth of the front ring-shaped body, the drill clamping head is arranged with a control sleeve with self-locking status, the control sleeve is arranged with a control member controlling the front ring-shaped body and the nut matched status, the front ring-shaped body is arranged with configurations controlling decohesion of the teeth of the front part ring-shaped body and the teeth of the nut matched with the control member and a transmission surface between the configurations controlling the meshed configuration, so as to realize self-lock, even under the affect of impact load, the drill bit retained by the clamping claw is not easy to loose, slip and fall.
Description
Technical field
The utility model relates to a kind of drill chuck, relates in particular to a kind of for example drill chuck on drilling machine, the electric drill of machining equipment and electric tool that is installed in.
Background technology
In the prior art, be provided with drill body, jaw, nut, rotatable rotary cover, back cover in the hand fastening drill clutch, rotary sleeve axially is positioned, three jaws are separately positioned in three inclined holes that are distributed on the drill body, adopt between nut and the jaw to be threaded, rotary sleeve directly or indirectly is connected with nut.During work, thereby driving the nut rotation by the operation rotary sleeve drives jaw and pass in and out in inclined hole and make the drill chuck clamping or the drilling tool that gets loose, the shortcoming of these drill chucks is: under the load that the is hit effect, the drill bit of jaw clamping is easily loosening to skid even comes off, and is difficult to keep the continuity of processing.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of loosening self-locking type clamping head of hand-locking drill that skids that is difficult under impact loading.For this reason, the utility model is by the following technical solutions: it comprises drill body, jaw, nut, jaw is connected with nut thread, described drill chuck also is provided with in the place ahead of nut around the drill body and the forward annular body that can not rotate with respect to drill body, the rear end face of described forward annular body is provided with and participates in the tooth that self-locking cooperates, the front end face of described nut is provided with the tooth that cooperates with the tooth of forward annular body, described drill chuck is provided with the control cover of self-locking state, described control is arranged with the control piece of control forward annular body and nut mated condition, described forward annular body be provided with the tooth of the control forward annular body that cooperates with control piece and nut the tooth disengagement configuration and control configuration that their mesh and the transition face between configuration.Owing to adopt the technical solution of the utility model, the utility model can make the tooth of forward annular body and the tooth of nut be in the engagement fit state by operation control cover, realizes self-locking, both made to be subjected under the impact loading, the drill bit of jaw clamping is difficult for loosening skidding and comes off.
Description of drawings
Fig. 1 is the cutaway view of a kind of embodiment of the utility model.
Fig. 2 is the A-A cutaway view of Fig. 1 when non-self-locking state.
Fig. 3 is the B-B cutaway view of Fig. 1 when non-self-locking state.
Fig. 4 is an explosive view embodiment illustrated in fig. 1.
Fig. 5 is a control cover stereogram embodiment illustrated in fig. 1.
Fig. 6 is a forward annular body stereogram embodiment illustrated in fig. 1.
Fig. 7 is a nut stereogram embodiment illustrated in fig. 1.
Fig. 8 is for being Forward End Cap stereogram embodiment illustrated in fig. 1.
The specific embodiment
With reference to accompanying drawing.The utility model comprises drill body 1, jaw 4, nut 3, jaw is connected with nut thread, described drill chuck also is provided with in the place ahead of nut around the drill body and the forward annular body 6 that can not rotate with respect to drill body, the rear end face of described forward annular body is provided with and participates in the tooth 61 that self-locking cooperates, the front end face of described nut is provided with the tooth 31 that cooperates with the tooth of forward annular body, described drill chuck is provided with the control cover 2 of self-locking state, described control is arranged with the control piece 21 of control forward annular body and nut mated condition, described forward annular body be provided with the tooth of the control forward annular body that cooperates with control piece and nut the tooth disengagement configuration and control configuration and the transition face between configuration 64 that their mesh.
Described tooth 31 can be directly to process on the front end face of nut, and described tooth 31 also can be to process on a part, this part is connected itself and nut are moved simultaneously again.
Described forward annular body can be installed in outside the drill body slidingly back and forth, and described drill chuck is provided with the spring 93 of the forward annular body being pressed to nut, is provided with fixing Forward End Cap 7 at the front end of drill chuck, and spring 93 is between Forward End Cap 7 and the forward annular body 6.Described forward annular body is connected by key 94 with drill body, and the forward annular body is provided with the chute 65 that cooperates with key, thereby makes the forward annular body not rotate again and can slide front and back with respect to drill body.
Described drill chuck is provided with the spring 8 of extruding control cover forward.The inwall of described control cover is provided with boss 23, and the spring of the described control of extruding forward cover is located between control cover inwall boss and the nut.
As shown in the figure, described control piece 21 is a protrusion forward.
The groove 62 and 63 that is configured as being in the differing heights on the forward annular body of their engagements of configuration that the tooth of the described control forward annular body that cooperates with control piece and the tooth of nut are thrown off and control.As shown in the figure, groove 62 after, the tooth of control forward annular body is thrown off with the tooth of nut, groove 63 is preceding, the tooth of control forward annular body and the tooth of nut mesh.
The configuration of their engagements of configuration that the tooth of the described control forward annular body that cooperates with control piece and the tooth of nut are thrown off and control also can be for being in the profile of the differing heights on the forward annular body.
Direction of rotation with clamping work pieces is a positive direction, and the configuration that described control is thrown off is on the opposite direction of the configuration of controlling engagement.Like this, when the operation drill chuck, more convenient.In the present embodiment, described control cover also is provided with and the corresponding stopper slot 22 of the angle of the required rotation of its control operation, described drill chuck is provided with the locating part 71 that cooperates with stopper slot, and locating part 71 is located on the Forward End Cap 7 that is fixed in the drill chuck front end in the present embodiment.
Cover operating nut after present embodiment adopts as shown in the figure, is provided with the back cover 5 that drives the nut rotation at the rear of control cover, and the back cover is connected with the nut interference fit.
In the present embodiment, drawing reference numeral 91 and 92 is respectively pad and the bearing between nut and the drill body.
When using beginning, control piece 21 is in the groove 62, and drill chuck is in non-self-locking state, and tooth 61 and 31 is thrown off.Operate afterwards earlier and overlap, drive nut and rotate the clamping drill bit, after treating that drill bit is clamped, rotate the control cover again, control piece 21 is entered in the groove 63 from groove 62, tooth 61 and 31 engagements, drill chuck is in self-locking state, when work, both made drill chuck be subjected to shock loading, the drill bit of jaw clamping is difficult for loosening skidding and comes off.
When getting loose drill bit, as long as backward rotation is controlled cover, control piece 21 is entered in the groove 62 from groove 63, tooth 61 and 31 is thrown off, and removes self-locking state, can operate the back and overlap the operation that gets loose.
Claims (10)
1. self-locking type clamping head of hand-locking drill, comprise drill body, jaw, nut, jaw is connected with nut thread, it is characterized in that described drill chuck also is provided with in the place ahead of nut around the drill body and the forward annular body that can not rotate with respect to drill body, the rear end face of described forward annular body is provided with and participates in the tooth that self-locking cooperates, the front end face of described nut is provided with the tooth that cooperates with the tooth of forward annular body, described drill chuck is provided with the control cover of self-locking state, described control is arranged with the control piece of control forward annular body and nut mated condition, described forward annular body be provided with the tooth of the control forward annular body that cooperates with control piece and nut the tooth disengagement configuration and control configuration that their mesh and the transition face between configuration.
2. a kind of self-locking type clamping head of hand-locking drill as claimed in claim 1 is characterized in that described forward annular body can be installed in outside the drill body slidingly back and forth, and described drill chuck is provided with the spring of the forward annular body being pressed to nut.
3. a kind of self-locking type clamping head of hand-locking drill as claimed in claim 2 is characterized in that described forward annular body is connected by key with drill body, and the forward annular body is provided with the chute that cooperates with key.
4. a kind of self-locking type clamping head of hand-locking drill as claimed in claim 1 is characterized in that described drill chuck is provided with the spring of extruding control cover forward.
5. a kind of self-locking type clamping head of hand-locking drill as claimed in claim 4 is characterized in that the inwall of described control cover is provided with boss, and the spring of the described control of extruding forward cover is located between control cover inwall boss and the nut.
6. a kind of self-locking type clamping head of hand-locking drill as claimed in claim 1 is characterized in that configuration that the tooth of the tooth of the described control forward annular body that cooperates with control piece and nut is thrown off and the profile that is configured as being in the differing heights on the forward annular body of their engagements of control.
7. a kind of self-locking type clamping head of hand-locking drill as claimed in claim 1 is characterized in that the tooth of the described control forward annular body that cooperates with control piece and the tooth configuration of throwing off and the groove that is configured as being in the differing heights on the forward annular body of controlling their engagements of nut.
8. as claim 1,2,3,4,5,6 or 7 described a kind of self-locking type clamping head of hand-locking drill, it is characterized in that the direction of rotation with clamping work pieces is a positive direction, the configuration that described control is thrown off is on the opposite direction of the configuration of controlling engagement.
9. a kind of self-locking type clamping head of hand-locking drill as claimed in claim 8 is characterized in that described control is arranged with the corresponding stopper slot of angle with the required rotation of its control operation, and described drill chuck is provided with the locating part that cooperates with stopper slot.
10. as claim 1,2,3,4,5,6 or 7 described a kind of self-locking type clamping head of hand-locking drill, it is characterized in that described drill chuck is provided with the back cover that drives the nut rotation at the rear of control cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720111257XU CN201055921Y (en) | 2007-06-29 | 2007-06-29 | Self-locking type clamping head of hand-locking drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720111257XU CN201055921Y (en) | 2007-06-29 | 2007-06-29 | Self-locking type clamping head of hand-locking drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201055921Y true CN201055921Y (en) | 2008-05-07 |
Family
ID=39424767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720111257XU Expired - Fee Related CN201055921Y (en) | 2007-06-29 | 2007-06-29 | Self-locking type clamping head of hand-locking drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201055921Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912982A (en) * | 2010-09-20 | 2010-12-15 | 浙江超力机械工具制造有限公司 | Keyless drill chuck |
| WO2014012215A1 (en) * | 2012-07-17 | 2014-01-23 | 威海达旺五金制品有限责任公司 | Novel drill chuck |
| CN107138774A (en) * | 2017-06-23 | 2017-09-08 | 浙江三鸥机械股份有限公司 | A kind of Self-locking drill-chuck |
| WO2024000194A1 (en) * | 2022-06-28 | 2024-01-04 | 福比特精工科技有限公司 | Separation and connection switching assembly, drill chuck, power tool, and forward and reverse rotation method of drill chuck |
-
2007
- 2007-06-29 CN CNU200720111257XU patent/CN201055921Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912982A (en) * | 2010-09-20 | 2010-12-15 | 浙江超力机械工具制造有限公司 | Keyless drill chuck |
| CN101912982B (en) * | 2010-09-20 | 2013-01-02 | 浙江超力机械工具制造有限公司 | Keyless drill chuck |
| WO2014012215A1 (en) * | 2012-07-17 | 2014-01-23 | 威海达旺五金制品有限责任公司 | Novel drill chuck |
| CN104411432A (en) * | 2012-07-17 | 2015-03-11 | 威海达旺五金制品有限责任公司 | Novel drill chuck |
| CN104411432B (en) * | 2012-07-17 | 2016-06-29 | 威海达旺五金制品有限责任公司 | Drill chuck |
| US10086442B2 (en) | 2012-07-17 | 2018-10-02 | Weihai Dawang Hardware Products Limited | Drill chuck |
| CN107138774A (en) * | 2017-06-23 | 2017-09-08 | 浙江三鸥机械股份有限公司 | A kind of Self-locking drill-chuck |
| CN107138774B (en) * | 2017-06-23 | 2023-11-28 | 浙江三鸥机械股份有限公司 | Self-locking drill chuck |
| WO2024000194A1 (en) * | 2022-06-28 | 2024-01-04 | 福比特精工科技有限公司 | Separation and connection switching assembly, drill chuck, power tool, and forward and reverse rotation method of drill chuck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080507 Termination date: 20100629 |