CN2455421Y - Self-fastening drill chuck - Google Patents
Self-fastening drill chuck Download PDFInfo
- Publication number
- CN2455421Y CN2455421Y CN 00257070 CN00257070U CN2455421Y CN 2455421 Y CN2455421 Y CN 2455421Y CN 00257070 CN00257070 CN 00257070 CN 00257070 U CN00257070 U CN 00257070U CN 2455421 Y CN2455421 Y CN 2455421Y
- Authority
- CN
- China
- Prior art keywords
- screw
- drill body
- self
- overcoat
- drill
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 238000010030 laminating Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 18
- 241001074085 Scophthalmus aquosus Species 0.000 abstract description 2
- 241001656951 Protheca Species 0.000 description 6
- 230000007812 deficiency Effects 0.000 description 4
Landscapes
- Drilling And Boring (AREA)
- Gripping On Spindles (AREA)
Abstract
The utility model relates to a self-clinching drill chuck, it comprises the brill body, clamping jaw, bearing pad, bearing, screw, overcoat, transmission connecting axle, bores body rear end center clearance fit and installs the transmission connecting axle, and transmission connecting axle upper end external connection has the overcoat, and the overcoat lower extreme is connected with the screw, the screw with install the clamping jaw meshing in boring body inclined hole. The utility model has the advantages of from the tightening function, can not make the drilling tool not hard up because of vibration or impact during the use, it is rational in infrastructure to have, reliable operation, safe in utilization, is applicable to the clamping of various drilling tools.
Description
The utility model relates to a kind of drilling tool clamping device, specifically a kind of self-tightening drill chuck.
We know, existing drill chuck generally is made up of drill body, jaw, screw, nut sleeve, bearing, bearing gasket, protheca, back cover and door etc., back cover, bearing gasket interference respectively are connected on the drill body, three jaws are installed in respectively in the inclined hole of three five equilibriums on the drill body, screw is installed in the screw groove of drill body, threaded engagement on screw and the jaw forms thread transmission, nut sleeve and screw interference fit, nut sleeve is provided with protheca outward, the protheca inwall is provided with key, nut sleeve is provided with keyway, and protheca is connected through key with nut sleeve.When installing and using, drill body directly links to each other with power transmission shaft on electric hand drill or the drilling machine, drives that drill body drives three-jaw and gripping object rotates.Hand is twisted the protheca rotation, protheca drives screw through nut sleeve and rotates, and screw drives in the inclined hole of jaw on drill body through screw thread and moves forward and backward, thereby three-jaw is opened or closure, to reach the purpose of unclamping or clamping drilling tool, the deficiency of above-mentioned drill chuck is that complex structure is during work, because vibration or impact, drill chuck is easily loosening, has a strong impact on operating efficiency, poor stability.
The purpose of this utility model is exactly to provide a kind of simple in structure in order to overcome above-mentioned the deficiencies in the prior art, and transmission is reasonable, has automatic driving-force adding and clamps drilling tool function, high efficiency, safe in utilization, self-tightening drill chuck efficiently.
For achieving the above object, a kind of self-tightening drill chuck of the utility model, include drill body, jaw, screw, overcoat, three jaws are installed in respectively in the inclined hole of three five equilibriums in the drill body, it is characterized in that centre bore intermediate gap, drill body rear end cooperate to install the axle that is in transmission connection, be in transmission connection axle upper end is externally connected to overcoat, and the overcoat lower end is connected with screw, and screw meshes with the jaw that is installed in the drill body inclined hole.
The utility model drill body top axle that is in transmission connection is provided with the spacing shaft shoulder, is provided with internal thread in the axle that is in transmission connection, and it can link to each other with the drive disk assembly on electric hand drill or the drilling machine, and transfer motion power passes to screw, jaw etc. by overcoat then.Bearing and bearing gasket or laminating on contact-making surface are installed, to reduce friction between the utility model drill body and the screw contact-making surface.
The utility model is owing to adopt said structure, the axle that is in transmission connection is connected with screw by overcoat, screw and the jaw engagement that is installed in the drill body inclined hole, and screw is delivered to the torque on the jaw, drive drill body and drive three-jaw and gripping object rotation, play the effect that automatic driving-force adding clamps drilling tool simultaneously.Overcome present drill chuck and do not had locking device or the inconvenient deficiency of locking.It manipulates fast, reliable, safety, convenience, has advantages such as rational in infrastructure, easy to assembly, reliable operation, is applicable to the clamping of various drilling tools.
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is a kind of structural representation of the present utility model;
As can be seen from the figure, a kind of self-tightening drill chuck of the utility model, include drill body 1, jaw 2, bearing gasket 3, bearing 4, screw 5, overcoat 6, be in transmission connection the axle 7.Wherein, between drill body 1 and screw 5 contact-making surfaces bearing 4 and bearing gasket 3 are installed, bearing gasket 3 can be connected on the drill body 1 in interference.The utility model also can be laminating on drill body 1 and screw 5 contact-making surfaces, replaces bearing, bearing gasket etc., to reduce friction.Three jaws 2 are installed in respectively in the inclined hole of three five equilibriums in the drill body, screw 5 and jaw 2 engagements that are installed in the drill body inclined hole.
Characteristics of the present utility model are that the axle 7 that is in transmission connection cooperate to be installed in drill body 1 centre bore intermediate gap, are provided with internal thread in the middle of it, be used for electric hand drill or drilling machine on power transmission shaft be connected transmission.The axle that is in transmission connection also can be established taper hole in the middle of 7, also can establish the taper shank or the screw rod of protrusion at the rear portion, is used for being connected with corresponding drive disk assembly on electric hand drill or the drilling machine.The axle that is in transmission connection also is provided with the spacing shaft shoulder 8 on 7, spacing shaft shoulder top is connected with overcoat 6, overcoat 6 lower ends are connected with screw 5, concrete annexation between them can be by being threaded, also can the interference tight fit connect, can also adopt groove or keyway to connect, or roller marks mark tight fit connect.Purpose is exactly in order to guarantee that each parts connects the reliability of transmission.
Corresponding drive disk assembly to the axle 7 that is in transmission connection, passes to screw 5 by overcoat 6 with transmission of power then on the utility model electric hand drill or the drilling machine.Screw 5 shapes can be boss type, and its underpart tapering is consistent with the tapering of jaw in the drill body, and is handsome in appearance, easy for operation.Screw 5 and jaw 2 engagements that are installed in the drill body inclined hole are delivered to torque on the jaw by screw, drive that drill body drives three-jaw and gripping object rotates, and play the effect that automatic driving-force adding clamps drilling tool simultaneously.Overcome present drill chuck and do not had locking device or the inconvenient deficiency of locking.
When the utility model is installed, at first, drive disk assembly on be in transmission connection axle 7 and electric hand drill or the drilling machine is connected and fixed, drilling tool is put into drill body 1 jaw 2, hand is pinched drill body 1 bottom and is rotated, and the threaded engagement in screw 5 and the drill body on the jaw 2 forms the screw thread transmission, drives in the inclined hole of jaw 2 on drill body 1 to move forward and backward, thereby three-jaw is opened or closure, to reach the purpose of unclamping or clamping drilling tool.During work, the axle 7 that is in transmission connection is delivered to torque on the jaw by screw, drives that drill body drives three-jaw and gripping object rotates, and plays the effect that automatic driving-force adding clamps drilling tool simultaneously.
The utlity model has function of self-tightening, use fast, convenient, can or not impact because of vibration making brill Tool is loosening, has the advantages such as rational in infrastructure, easy to assembly, reliable operation, use safety, is applicable to The clamping of various drilling tools.
Claims (5)
1, a kind of self-tightening drill chuck, include drill body, jaw, screw, overcoat, three jaws are installed in respectively in the inclined hole of three five equilibriums in the drill body, it is characterized in that the cooperation of centre bore intermediate gap, drill body rear end is equipped with the axle that is in transmission connection, be in transmission connection axle upper end is externally connected to overcoat, the overcoat lower end is connected with screw, screw and the jaw engagement that is installed in the drill body inclined hole.
2, self-tightening drill chuck as claimed in claim 1 is characterized in that the said axle that is in transmission connection is provided with the spacing shaft shoulder.
3, self-tightening drill chuck as claimed in claim 1 is characterized in that between said drill body and the screw contact-making surface bearing and bearing gasket being installed.
4, self-tightening drill chuck as claimed in claim 1 is characterized in that on said drill body and the screw contact-making surface laminating.
5, self-tightening drill chuck as claimed in claim 1 is characterized in that being provided with screw thread in the said axle that is in transmission connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00257070 CN2455421Y (en) | 2000-12-13 | 2000-12-13 | Self-fastening drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00257070 CN2455421Y (en) | 2000-12-13 | 2000-12-13 | Self-fastening drill chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2455421Y true CN2455421Y (en) | 2001-10-24 |
Family
ID=33613657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00257070 Expired - Fee Related CN2455421Y (en) | 2000-12-13 | 2000-12-13 | Self-fastening drill chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2455421Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028765A (en) * | 2012-12-27 | 2013-04-10 | 浙江贝力得夹头工业有限公司 | Self-tightening drill chuck |
| WO2014094201A1 (en) * | 2012-12-17 | 2014-06-26 | 威海达旺五金制品有限责任公司 | Self-locking wrench drill chuck |
-
2000
- 2000-12-13 CN CN 00257070 patent/CN2455421Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014094201A1 (en) * | 2012-12-17 | 2014-06-26 | 威海达旺五金制品有限责任公司 | Self-locking wrench drill chuck |
| CN103028765A (en) * | 2012-12-27 | 2013-04-10 | 浙江贝力得夹头工业有限公司 | Self-tightening drill chuck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG WEIDA MACHINERY CO., LTD. Free format text: FORMER NAME OR ADDRESS: WEIDA MACHINE TOOL GROUP CORP., SHANDONG |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Weida Machinery Co., Ltd., Shandong Patentee before: Weida Machine-Tool Group Co., Shandong |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |