CN2474253Y - Drill chuck - Google Patents
Drill chuck Download PDFInfo
- Publication number
- CN2474253Y CN2474253Y CN 01216643 CN01216643U CN2474253Y CN 2474253 Y CN2474253 Y CN 2474253Y CN 01216643 CN01216643 CN 01216643 CN 01216643 U CN01216643 U CN 01216643U CN 2474253 Y CN2474253 Y CN 2474253Y
- Authority
- CN
- China
- Prior art keywords
- screw
- drill body
- drill
- protheca
- drill 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.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 241001656951 Protheca Species 0.000 claims description 19
- 230000002787 reinforcement Effects 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract description 25
- 235000008331 Pinus X rigitaeda Nutrition 0.000 abstract description 5
- 235000011613 Pinus brutia Nutrition 0.000 abstract description 5
- 241000018646 Pinus brutia Species 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
Images
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- Drilling And Boring (AREA)
Abstract
The utility model relates to a drill chuck, it is including boring body, clamping jaw, screw, back cover, transmission connecting axle, front cover etc. bores the body rear end and installs the transmission connecting axle, and transmission connecting axle upper end external connection has the back cover, and the back cover lower extreme is connected with the screw, and the screw meshes with the clamping jaw of installing in boring body inclined hole, bores the body front portion and front cover and connects fixedly. The upper end of the front sleeve is buckled on the screw nut in a clearance fit manner. The utility model discloses have from the tightness and the tight function of hand, can not make the drilling tool not hard up because of vibration or impact during the use, the clamping of drilling tool, the pine is unloaded conveniently. Has the advantages of reasonable structure, reliable work, safe use and the like.
Description
The utility model relates to a kind of drilling tool clamping device, specifically a kind of 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 this drill chuck is that complex structure is during work, because vibration or impact, drill chuck is easily loosening, influences operating efficiency, poor stability.The applicant's patent application 00257070.X has described a kind of novel self-tightening drill chuck, it cooperate to install the axle that is in transmission connection in centre bore intermediate gap, drill body rear end, be in transmission connection and overlap after the axle upper end is externally connected to, cover lower end, back is connected with screw, screw and the jaw engagement that is installed in the drill body inclined hole, screw is delivered to the torque on the jaw, drives drill body and drives three-jaw and gripping object rotation, plays the effect that automatic driving-force adding clamps drilling tool.Safe in utilization, reliable, but its loading and unloading drilling tool is convenient inadequately, and particularly because clamping force is very big automatically sometimes, pine is unloaded the drilling tool difficulty.
The purpose of this utility model is exactly in order to overcome above-mentioned the deficiencies in the prior art, provides a kind of simple in structure, and transmission is reasonable, has self-tightening and hand-tight function, and safe in utilization, reliable, drilling tool is easy to loading and unloading, the drill chuck of high efficiency.
For achieving the above object, a kind of drill chuck of the utility model, include drill body, jaw, screw, back cover, three jaws are installed in respectively in the inclined hole of three five equilibriums in the drill body, the axle that is in transmission connection cooperate to be installed in centre bore intermediate gap, drill body rear end, and the axle upper end that is in transmission connection is externally connected to the back cover, and cover lower end, back is connected with screw, screw and the jaw engagement that is installed in the drill body inclined hole is characterized in that the drill body front portion is fixedly connected with protheca.
The said protheca upper gap cooperation of the utility model is buckled on the screw, and the drill body front end outside is provided with driving hole or is provided with the spanner mouth that is many faceted pebbles structure, is used for being used pine with spanner and unloads drilling tool.
The utility model has function hand-tight and automatic driving-force adding clamping drilling tool because the employing said structure drives drill body by protheca and rotates the loading and unloading drilling tool, has overcome the inconvenient deficiency of present drill chuck locking.It manipulates quick, reliable, safe, easy to loading and unloading, 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;
Fig. 2 is an another kind of structural representation of the present utility model;
Fig. 3 is a local I enlarged diagram among Fig. 2; Fig. 4 be among Fig. 2 A-A to schematic diagram.
As can be seen, a kind of drill chuck of the utility model includes drill body 1, jaw 2, bearing gasket 3, bearing 4, screw 5, back cover 6, axle 7, protheca 8 are in transmission connection from Fig. 1, Fig. 2, Fig. 4.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.
The utility model cooperate to be installed the axle 7 that is in transmission connection in drill body 1 centre bore intermediate gap, be 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 7 that is in transmission connection is externally connected to back cover 6, and cover 6 lower ends, back are connected with screw 5.Corresponding drive disk assembly to the axle 7 that is in transmission connection, passes to screw 5 by back cover 6 with transmission of power then on the utility model electric hand drill or the drilling machine.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.Said structure is existing the description in aforementioned patent.
The utility model drill body 1 front portion is fixedly connected with protheca 8.The cooperation of protheca upper gap is buckled on the screw 5.The effect of the utility model protheca is to be convenient to hand-held operation on the one hand, carries out hand-tight loading and unloading drilling tool; It makes the drill chuck overall appearance on the other hand, also plays dustproof effect during work.
The utility model protheca 8 can adopt metal material processing, also can adopt nonmetallic materials such as plastic processing, and itself and drill body 1 are connected and fixed.Concrete annexation between them can the interference tight fit connects, and also can adopt gluing bondingly, can also adopt groove or keyway to connect, or roller marks mark tight fit connects.Fig. 3 is a kind of local enlarged diagram of syndeton.It is provided with bulge loop 9 in protheca 8 inboards, and corresponding drill body 1 is provided with groove 10, connects the reliability of transmission in order to guarantee parts, and the bulge loop position also is provided with reinforcement 11.
The utility model is provided with driving hole 13 in the drill body 1 front end outside, can also be provided with the spanner mouth 12 that is many faceted pebbles structure, is used for being used with spanner, and pine is unloaded drilling tool.
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, holds protheca 8, drives drill body 1 and rotates, threaded engagement in screw 5 and the drill body on the jaw 2 forms the screw thread transmission, move forward and backward in the inclined hole of drive jaw 2 on drill body 1, thereby three-jaw is opened or closure, to reach the purpose of unclamping or clamping drilling tool.When clamping force is big automatically, drives drill body 1 with spanner and rotate, realize that the pine of drilling tool is unloaded.
The utlity model has self-tightening and hand-tight function, use fast, can or not impact because of vibration making brill Tool is loosening, and the clamping of drilling tool, loose unloading are conveniently, reliably. Has rational in infrastructure, easy to assembly, work Reliably, use the advantage such as safety, be applicable to the clamping of various drilling tools.
Claims (6)
1, a kind of drill chuck, include drill body, jaw, screw, back cover, three jaws are installed in respectively in the inclined hole of three five equilibriums in the drill body, the axle that is in transmission connection cooperate to be installed in centre bore intermediate gap, drill body rear end, be in transmission connection and overlap after the axle upper end is externally connected to, cover lower end, back is connected with screw, and screw and the jaw engagement that is installed in the drill body inclined hole is characterized in that the drill body front portion is fixedly connected with protheca.
2, drill chuck as claimed in claim 1 is characterized in that said protheca upper gap cooperation is buckled on the screw.
3, drill chuck as claimed in claim 1 is characterized in that said protheca inboard is provided with bulge loop, and corresponding drill body is provided with groove.
4, drill chuck as claimed in claim 1 is characterized in that the said drill body front end outside is provided with driving hole.
5, drill chuck as claimed in claim 1 is characterized in that the said drill body front end outside is provided with the spanner mouth that is many faceted pebbles structure.
6, drill chuck as claimed in claim 3 is characterized in that said bulge loop position is provided with reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01216643 CN2474253Y (en) | 2001-02-23 | 2001-02-23 | Drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01216643 CN2474253Y (en) | 2001-02-23 | 2001-02-23 | Drill chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2474253Y true CN2474253Y (en) | 2002-01-30 |
Family
ID=33635024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01216643 Expired - Fee Related CN2474253Y (en) | 2001-02-23 | 2001-02-23 | Drill chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2474253Y (en) |
Cited By (1)
| 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 |
-
2001
- 2001-02-23 CN CN 01216643 patent/CN2474253Y/en not_active Expired - Fee Related
Cited By (1)
| 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 |
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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 |