CN204194850U - Three-jaw fixture - Google Patents
Three-jaw fixture Download PDFInfo
- Publication number
- CN204194850U CN204194850U CN201420538437.6U CN201420538437U CN204194850U CN 204194850 U CN204194850 U CN 204194850U CN 201420538437 U CN201420538437 U CN 201420538437U CN 204194850 U CN204194850 U CN 204194850U
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- CN
- China
- Prior art keywords
- pawl
- rocking arm
- another market
- soft
- jaw fixture
- 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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Abstract
The utility model discloses a kind of Three-jaw fixture, comprise chuck, be installed on three soft pawls on chuck, multiplely be installed on the rocking arm pawl on soft pawl and connect the securing member of soft pawl and rocking arm pawl, wherein, each soft pawl is all provided with a rocking arm pawl, rocking arm pawl is provided with multiple clamping part for clamping blank to be processed, securing member comprises ships and resell on another market and bolt, installing hole is all offered jointly to be formed for holding the dowel hole of shipping and reselling on another market on soft pawl He on rocking arm pawl, the stepped hole for construction bolt is offered on shipping and reselling on another market, dowel hole on screw bolt passes stepped hole and soft pawl and rocking arm pawl, to ship and resell on another market and be installed between bolt and rocking arm pawl.The utility model provides Three-jaw fixture, can improve the machining accuracy of processing blank.
Description
Technical field
The utility model relates to clamp structure technical field, particularly relates to a kind of Three-jaw fixture.
Background technology
Three-jaw fixture is the most general a kind of fixture of the various part of machined clamping, and this fixture is easy to use, is widely used, and standardization has already manufactured.Three-jaw fixture is primarily of chuck and jaw composition.Be applied on jaw by mechanical force or hydraulic coupling, generation clamping and loosening up realize the clamping of blank and unload.
At present, Three-jaw fixture is applied very extensive in annular element processing, but in production in enormous quantities, Three-jaw fixture processes and often there will be the bad problem of circularity.Such as process an annular element, before processing, blank circularity is 0.3mm, and after processing, circularity requires 0.05mm, but processing 100, there are about 20 circularity more than 0.05 mm, close to 0.1mm time serious.This is because, each blank circularity is inconsistent, after using present Three-jaw fixture clamping, blank can produce micro-deformation, during clamping blank forming, its circularity is fine, but once unload blank, the blank processed can produce rebound phenomenon because of elastic deformation, circularity just changes, thus occurs the bad problem of circularity.In addition, the wall thickness factor impact of annular element itself is also very large, thus causes thinner part deformation larger.These phenomenons all can cause bad in actual production and phenomenon of doing over again frequently to occur.
Utility model content
Main purpose of the present utility model is to provide a kind of Three-jaw fixture, is intended to the machining accuracy improving processing blank.
For achieving the above object, the utility model provides a kind of Three-jaw fixture, comprise chuck, be installed on three soft pawls on described chuck, multiple rocking arm pawl be installed on described soft pawl, and connect the securing member of described soft pawl and rocking arm pawl, wherein, soft pawl described in each is all provided with rocking arm pawl described in, described rocking arm pawl is provided with multiple clamping part for clamping blank to be processed, described securing member comprises ships and resell on another market and bolt, installing hole is all offered jointly to form the dowel hole for shipping and reselling on another market described in holding on described soft pawl and on described rocking arm pawl, described ship and resell on another market on offer stepped hole for installing described bolt, dowel hole on stepped hole described in described screw bolt passes and described soft pawl and rocking arm pawl, described shipping and reselling on another market is installed between described bolt and described rocking arm pawl.
Preferably, afterbody of shipping and reselling on another market described in is more than or equal to the height of described dowel hole corresponding part along its axis direction along the height of its axis direction.
Preferably, shipping and reselling on another market described in described dowel hole is matched in clearance.
Preferably, rocking arm pawl described in each is equipped with two clamping parts.
Preferably, the installing hole on described soft pawl is provided with multiple.
Preferably, all described clamping parts are evenly distributed at the circumferencial direction of described chuck.
The Three-jaw fixture that the utility model proposes, because rocking arm pawl is provided with multiple clamping part for clamping blank to be processed, simultaneously, ship and resell on another market add bolt coordinate rocking arm pawl is installed on soft pawl, to greatest extent the impact of chuck force on blank is dropped to minimum, allow blank produce elastic deformation hardly, thus, thus greatly reduce the bad problem of circularity of the rear blank of processing, improve the machining accuracy of product.Like this, use the product yields of this Three-jaw fixture batch machining significantly to promote, do over again and reprocess phenomenon and greatly reduce.Meanwhile, this Three-jaw fixture also has structure advantage that is simple, that easily realize.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model Three-jaw fixture preferred embodiment;
Fig. 2 is the structural representation of rocking arm pawl in the utility model Three-jaw fixture;
Fig. 3 is the scheme of installation of shipping and reselling on another market in the utility model Three-jaw fixture.
The realization of the utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
It should be noted that, in description of the present utility model, term " transverse direction ", " longitudinal direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, be not indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
Referring to figs. 1 through the structural representation that Fig. 3, Fig. 1 are the utility model Three-jaw fixture preferred embodiment; Fig. 2 is the structural representation of rocking arm pawl in the utility model Three-jaw fixture; Fig. 3 is the scheme of installation of shipping and reselling on another market in the utility model Three-jaw fixture.
In this preferred embodiment, Three-jaw fixture comprises chuck 10, be installed on three soft pawls 20 on chuck 10, multiple rocking arm pawl 30 be installed on soft pawl 20, and connect the securing member of soft pawl 20 and rocking arm pawl 30, wherein, each soft pawl 20 is all provided with a rocking arm pawl 30, rocking arm pawl 30 is provided with multiple clamping part 31 for clamping blank to be processed, securing member comprises ship and resell on another market 41 and bolt, on soft pawl 20 and rocking arm pawl 30 on all offer installing hole 50 with jointly formed for hold ship and resell on another market 41 dowel hole, to ship and resell on another market the stepped hole 411 offered on 41 for construction bolt, dowel hole on screw bolt passes stepped hole 411 and soft pawl 20 and rocking arm pawl 30, to ship and resell on another market and 41 to be installed between bolt and rocking arm pawl 30.Particularly, in the present embodiment, rocking arm pawl 30 is provided with three, each rocking arm pawl 30 is equipped with two clamping parts 31.The installing hole of each soft pawl 20 is provided with multiple.In the present embodiment, each soft pawl 20 is equipped with two installing holes 50, to facilitate the installation site of adjustment rocking arm pawl 30.
When using this Three-jaw fixture processing blank, first three soft pawls 20 are installed on chuck 10, then, by the installing hole 50 on rocking arm pawl 30 in alignment with the installing hole 50 on soft pawl 20, to ship and resell on another market in the soft pawl 20 of 41 insertion and the common dowel hole formed of rocking arm pawl 30, again bolt is inserted in stepped hole 411 and tighten, thus will ship and resell on another market and 41 be installed between bolt and rocking arm pawl 30, now, Three-jaw fixture installs, when processing blank, jointly being coordinated by six clamping parts 31 of three rocking arm pawls 30 and blank is clamped.
Further, with reference to Fig. 2, in the present embodiment, 41 afterbodys of shipping and reselling on another market are more than or equal to the height of dowel hole corresponding part along its axis direction along the height of its axis direction.Ship and resell on another market 41 with dowel hole be matched in clearance.Now, can ensure that shipping and reselling on another market after installing 41 can not be crushed to death, as ship and resell on another market 41 kill after, rocking arm pawl 30 can not along 41 rotations of shipping and reselling on another market, and the blank processed just does not reach due precision.
With reference to Fig. 1, all clamping parts 31 are evenly distributed at the circumferencial direction of chuck 10, now, blank can be made to be subject to the power of multiple clamping part 31 applying on multiple rocking arm pawl 30 evenly, thus further increase the machining accuracy using this Three-jaw fixture to process blank.
The Three-jaw fixture that the present embodiment proposes, because rocking arm pawl 30 is provided with multiple clamping part 31 for clamping blank to be processed, simultaneously, ship and resell on another market 41 add bolt coordinate rocking arm pawl 30 is installed on soft pawl 20, thus to greatest extent the impact of chuck force on blank is dropped to minimum, allow being produced elastic deformation hardly by the blank clamped, thus, thus greatly reduce the bad problem of circularity of the rear blank of processing, improve the machining accuracy of product.Use the product yields of this Three-jaw fixture batch machining significantly to promote, the phenomenon of reprocessing of doing over again reduces greatly.Meanwhile, this Three-jaw fixture also has structure advantage that is simple, that easily realize.
These are only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure transformation utilizing the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (6)
1. a Three-jaw fixture, it is characterized in that, comprise chuck, be installed on three soft pawls on described chuck, multiple rocking arm pawl be installed on described soft pawl, and connect the securing member of described soft pawl and rocking arm pawl, wherein, soft pawl described in each is all provided with rocking arm pawl described in, described rocking arm pawl is provided with multiple clamping part for clamping blank to be processed, described securing member comprises ships and resell on another market and bolt, installing hole is all offered jointly to form the dowel hole for shipping and reselling on another market described in holding on described soft pawl and on described rocking arm pawl, described ship and resell on another market on offer stepped hole for installing described bolt, dowel hole on stepped hole described in described screw bolt passes and described soft pawl and rocking arm pawl, described shipping and reselling on another market is installed between described bolt and described rocking arm pawl.
2. Three-jaw fixture as claimed in claim 1, is characterized in that, described in afterbody of shipping and reselling on another market be more than or equal to the height of described dowel hole corresponding part along its axis direction along the height of its axis direction.
3. Three-jaw fixture as claimed in claim 2, is characterized in that, described in ship and resell on another market with described dowel hole be matched in clearance.
4. Three-jaw fixture as claimed in claim 3, is characterized in that, rocking arm pawl described in each is equipped with two clamping parts.
5. Three-jaw fixture as claimed in claim 1, it is characterized in that, the installing hole on described soft pawl is provided with multiple.
6. as the Three-jaw fixture in claim 1 to 5 as described in any one, it is characterized in that, all described clamping parts are evenly distributed at the circumferencial direction of described chuck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420538437.6U CN204194850U (en) | 2014-09-18 | 2014-09-18 | Three-jaw fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420538437.6U CN204194850U (en) | 2014-09-18 | 2014-09-18 | Three-jaw fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204194850U true CN204194850U (en) | 2015-03-11 |
Family
ID=52652850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420538437.6U Expired - Fee Related CN204194850U (en) | 2014-09-18 | 2014-09-18 | Three-jaw fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204194850U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723411A (en) * | 2018-08-15 | 2018-11-02 | 浙江科恩特电机科技有限公司 | Thin-wall tube Vehicle Processing tooling |
| CN112388348A (en) * | 2019-08-14 | 2021-02-23 | Smw-奥托布洛克紧固***有限责任公司 | Zero point clamping device |
-
2014
- 2014-09-18 CN CN201420538437.6U patent/CN204194850U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723411A (en) * | 2018-08-15 | 2018-11-02 | 浙江科恩特电机科技有限公司 | Thin-wall tube Vehicle Processing tooling |
| CN112388348A (en) * | 2019-08-14 | 2021-02-23 | Smw-奥托布洛克紧固***有限责任公司 | Zero point clamping device |
| CN112388348B (en) * | 2019-08-14 | 2023-08-04 | Smw-奥托布洛克紧固***有限责任公司 | Zero clamping device |
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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 |
Granted publication date: 20150311 Termination date: 20210918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |