CN205254149U - Three -jaw chuck - Google Patents
Three -jaw chuck Download PDFInfo
- Publication number
- CN205254149U CN205254149U CN201521034740.3U CN201521034740U CN205254149U CN 205254149 U CN205254149 U CN 205254149U CN 201521034740 U CN201521034740 U CN 201521034740U CN 205254149 U CN205254149 U CN 205254149U
- Authority
- CN
- China
- Prior art keywords
- claw portion
- jack catch
- catch portion
- spacing breach
- workpiece
- 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
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- Gripping On Spindles (AREA)
Abstract
The utility model discloses a three -jaw chuck, include the chuck body and set up a plurality of jack catchs that are used for pressing from both sides tightly or open the machined part on the chuck body, the jack catch includes that first jack catch portion extends in the second jack catch portion of first jack catch portion with perpendicular, second jack catch portion locates the periphery of first jack catch portion, and the head of second jack catch portion is provided with the cascaded surface, has solved a centre gripping limitation that originally only is applicable to axle type part through setting up of second jack catch portion to the setting of second jack catch portion is applicable to the product centre gripping that has the flange, enlarges the use field of anchor clamps.
Description
Technical field
The utility model relates to Machining Technology field, and more particularly, it relates to a kind of scroll chuck.
Background technology
Existing fixture on numerically controlled lathe generally adopts scroll chuck to clamp workpiece, the disclosed a kind of scroll chuck of the Chinese patent that is for example 201310183644.4 at application number, in its accompanying drawing 1, disclose the scroll chuck of prior art, it comprises chuck body 0.1, claw 0.2, the first bevel gear 0.3 and the second bevel gear 0.4; In the middle of described chuck body 0.1, be provided with the through hole 0.9 for place work piece; Described claw 0.2 is three and is on the claw track 0.5 on the end face that 120 degree angles are evenly arranged on chuck body 0.1; The second described bevel gear 0.4 and the first bevel gear 0.3 engage and the back side of the second bevel gear 0.4 is provided with helicla flute 0.6; The first described bevel gear 0.3 is provided with the square hole 0.7 inserting for spanner away from one end of chuck body 0.1 axis; Described claw 0.2 is provided with multiple latches 0.8 for being meshed with helicla flute 0.6; In the time that scroll chuck is worked, the square hole that spanner is inserted to the first bevel gear rotates the first bevel gear, drive the rotation of the second bevel gear, the helicla flute at the second bevel gear back side rotates and drives three claws to do radial motion along the claw track of chuck body again again, thereby clamps or unclamp workpiece.
And be only applicable to axle part as this type of scroll chuck, and the diameter of axle part must be less than or equal to the diameter of through hole on chuck body, for picture diameter large or the such as valve gap of workpiece of picture valve body class, valve gap has a flange, on flange, Connection Block can be vertically set, and just cannot extend into and in through hole, cause being difficult to clamping situation as Connection Block.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of be convenient to clamp workpiece and the wide scroll chuck of applicable situation.
For achieving the above object, the utility model provides following technical scheme: a kind of scroll chuck, comprise chuck body and be arranged on chuck body for clamping or open multiple claws of workpiece, described claw comprises the first claw portion and vertical the second claw portion that extends the first claw portion, described the second claw portion is located at the periphery of the first claw portion, and the head of the second claw portion is provided with cascaded surface.
By adopting technique scheme, in the time of clamping small-diameter shaft part, use the first claw portion that is arranged on inner ring, method of clamping is identical with existing mode; When clamping utilizes the second claw portion clamping that is arranged on the first claw portion periphery when major diameter when axial workpiece, and the second claw portion is the region that makes to form an accommodating workpiece in the second claw portion that vertically extends the first claw portion, while making clamping as the workpiece of valve gap class, there is accommodating space, and the head of the second claw portion is provided with cascaded surface, be applicable to different clamping occasions for clamping the workpiece of different-diameter.
As preferably, described cascaded surface comprises at least two spacing breach, and the height of described spacing breach increases from the inside to the outside successively.
By adopting technique scheme, the spacing breach on multiple claws is formed for the bare terminal end of holding workpiece, and the spacing breach of differing heights is realized the clamping of different-diameter workpiece.
As preferably, the sidewall slope setting of described spacing breach.
By adopting technique scheme, being obliquely installed of spacing breach sidewall increases the placement easiness of workpiece, improves the contact area of end face and workpiece on spacing breach, avoids the friction of workpiece and sidewall simultaneously and weares and teares.
As preferably, the curved setting of upper end face of described spacing breach.
By adopting technique scheme, the workpiece that the upper end face of arc setting can be circumferentially curved matches, and has increased with the contact area of workpiece and has improved clamping fixing.
Compared with prior art, the utility model has the advantage of: solved the clamping limitation that is originally only applicable to axial workpiece by arranging of the second claw portion, and the setting of the second claw portion is applicable to have the product clamping of flange, expand the use field of fixture.
Brief description of the drawings
Fig. 1 is the structural representation of fixture entirety;
Fig. 2 is the front view of fixture entirety;
Fig. 3 is the A portion enlarged drawing of Fig. 1;
Fig. 4 is the state diagram of the second claw portion clamping.
Brief description of the drawings: 1, chuck body; 2, claw; 21, the first claw portion; 22, the second claw portion; 23, cascaded surface; 231, the first spacing breach; 232, the second spacing breach; 233, the 3rd spacing breach; 234, arcwall face; 235, sidewall; 236, upper end face; 3, accommodating cavity; 31, the first clamping section; 32, the second clamping section; 33, the 3rd clamping section.
Detailed description of the invention
Below in conjunction with accompanying drawing and by specific embodiment, utility model is described in further detail, following examples are descriptive, are not determinate protection domains of the present utility model.
In conjunction with Fig. 1 and Fig. 2, a kind of scroll chuck comprises chuck body 1 and is located at the multiple claws 2 on chuck body 1, and claw 2 is identical with existing scroll chuck in the drive mechanism of chuck body 1.
Described claw 2 comprises the first claw portion 21 and vertical the second claw portion 22 that extends the first claw portion 21, the second claw portion 22 is located at the periphery of the first claw portion 21, the head of the second claw portion 22 is provided with cascaded surface 23, cascaded surface 23 makes the second claw portion 22 form multiple spacing breach, for better understanding this programme, be arranged so that at the present embodiment cascaded surface 23 forming three spacing breach is respectively and comprises the first spacing breach 231, the second spacing breach 232 and the 3rd spacing breach 233, the first spacing breach 231, the second spacing breach 232 and the 3rd spacing breach 233 arrange successively from inside to outside, and three cut heights increase successively, each spacing breach includes end face 236 on a sidewall 235 and, wherein sidewall 235 is obliquely installed towards chuck body 1, increase the grasping part of spacing breach.
Referring to Fig. 3, the upper end face 236 of each spacing breach is provided with arcwall face 234, and the circumferential surface that is arranged at workpiece of arcwall face 234 matches and improves the contact area increase clamping dynamics between workpiece.
Referring to Fig. 4, use state diagram when the clamping of this fixture, because the second claw portion 22 vertically extends the first claw portion 21, make to form an accommodating cavity 3 between the second claw portion 22 and the first claw portion 21, and multiple spacing breach are formed for the first clamping section 31, the second clamping section 32 and the 3rd clamping section 33 of holding workpiece successively, respectively corresponding different-diameter piece-holder station.
The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model. It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. a scroll chuck, comprise chuck body (1) and be arranged on chuck body (1) above for clamping or open multiple claws (2) of workpiece, it is characterized in that, described claw (2) comprises the first claw portion (21) and vertical the second claw portion (22) that extends the first claw portion (21), described the second claw portion (22) is located at the periphery of the first claw portion (21), and the head of the second claw portion (22) is provided with cascaded surface (23).
2. a kind of scroll chuck according to claim 1, is characterized in that, described cascaded surface (23) comprises at least two spacing breach, and the height of described spacing breach increases from the inside to the outside successively.
3. a kind of scroll chuck according to claim 2, is characterized in that, the sidewall slope setting of described spacing breach.
4. a kind of scroll chuck according to claim 2, is characterized in that, the curved setting of upper end face of described spacing breach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521034740.3U CN205254149U (en) | 2015-12-12 | 2015-12-12 | Three -jaw chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521034740.3U CN205254149U (en) | 2015-12-12 | 2015-12-12 | Three -jaw chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205254149U true CN205254149U (en) | 2016-05-25 |
Family
ID=55995700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521034740.3U Expired - Fee Related CN205254149U (en) | 2015-12-12 | 2015-12-12 | Three -jaw chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205254149U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110997200A (en) * | 2017-07-24 | 2020-04-10 | 株式会社北川铁工所 | Chuck with a locking mechanism |
-
2015
- 2015-12-12 CN CN201521034740.3U patent/CN205254149U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110997200A (en) * | 2017-07-24 | 2020-04-10 | 株式会社北川铁工所 | Chuck with a locking mechanism |
| CN110997200B (en) * | 2017-07-24 | 2021-06-22 | 株式会社北川铁工所 | Chuck with a locking mechanism |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20171212 |