CN201455686U - Eccentric fixture - Google Patents
Eccentric fixture Download PDFInfo
- Publication number
- CN201455686U CN201455686U CN2009200919716U CN200920091971U CN201455686U CN 201455686 U CN201455686 U CN 201455686U CN 2009200919716 U CN2009200919716 U CN 2009200919716U CN 200920091971 U CN200920091971 U CN 200920091971U CN 201455686 U CN201455686 U CN 201455686U
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- CN
- China
- Prior art keywords
- eccentric
- sleeve
- retinue
- cover
- grooves
- 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 - Lifetime
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Abstract
The utility model discloses an eccentric fixture, which comprises a body, a piston cylinder, a shaft plug, a liquid pressure transfer medium and a thin wall sleeve. The outer side of the thin wall sleeve is jacketed with an eccentric follow-up sleeve; the eccentric follow-up sleeve has a column sleeve structure with the axle centers of the inner hole and the outer wall thereof arranged eccentrically; the periphery of the eccentric follow-up sleeve is provided with grooves, the distances between the bottoms of the grooves and the axle center of the inner hole of the eccentric follow-up sleeve are equal; the grooves on the eccentric follow-up sleeve are arranged along the radial direction of the axle center of the inner hole of the eccentric follow-up sleeve; and one circle of the peripheral surface of the eccentric follow-up sleeve is uniformly provided with 12 grooves. The utility model has the advantages of simple structure, practical use and low manufacturing cost, and facilitates the rapid replacement and use. Moreover, the utility model has high centering accuracy, quickens and facilitates the assembly and disassembly of work pieces, and improves the production efficiency.
Description
Technical field
The utility model relates to a kind of eccentric fixture, particularly a kind of anchor clamps of the processing cover parts eccentric excircle that uses on hydraulic lathe or Digit Control Machine Tool.
Background technology
At present, cover parts has as shown in Figure 3, requirement is 2-3 eccentric arc that radius is R of outer round surface processing of D at diameter, because eccentric throw is bigger, adds man-hour on hydraulic lathe or Digit Control Machine Tool, machining generally adopts eccentric shaft centering to clamp, this centering clamping mode, anchor clamps are made complexity, cost is high, when hole dimension changes in the series of products, embody especially obvious.And common plastic thin wall anchor clamps comprise that body, piston cylinder, axle plug, liquid pressure transmit medium, thin-walled cover, adjusting nut, power source is in transmission connection with the axle plug, transmit pressure for liquid pressure transmission medium, impel the thin-walled cover radial deformation that is arranged on the body, realize retaining sleeve workpiece thereon, but workpiece can only be felt relieved clamping, can not realize eccentric clamping, so can't on workpiece, process 2-3 off-centre operation cambered surface.
The utility model content
The utility model purpose be to provide a kind of simple in structure, cost is lower and the eccentric fixture of fast changeable.
To achieve these goals, the utility model adopts following technical scheme: eccentric fixture, comprise that body, piston cylinder, axle plug, liquid pressure transmit medium, thin-walled cover, and be arranged with eccentric retinue cover in the outside of thin-walled cover.
Described eccentric retinue cover is the eccentric column sleeve structure that is provided with in the axle center of endoporus and outer wall.
Offer groove on described eccentric retinue one week of cover, the bottom land of groove overlaps the distance of shaft centers of endoporus from equating apart from the off-centre retinue.
The groove that described eccentric retinue puts is for offering on the radial direction in off-centre retinue cover endoporus axle center.
Evenly offer 12 grooves on described eccentric retinue one week of cover.
The utility model is simple in structure, practical, and low cost of manufacture is convenient to quick replacing, and is very convenient to use.And centering precision height, workpiece loading and unloading are quick and convenient, especially when producing series of products, when interior hole dimension changes (in the certain limit), only need change the retinue cover and getting final product, and the anchor clamps manufacturing cost obviously reduces, and has improved production efficiency.The groove that eccentric retinue puts can guarantee to be out of shape evenly when retinue is enclosed within clamping.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of eccentric retinue cover;
Fig. 3 is the structural representation of workpiece to be machined.
The specific embodiment
Embodiment: as shown in Figure 1, axle plug 4, liquid pressure that eccentric fixture comprises body 1, adjusting nut 5, piston cylinder 3, be in transmission connection with power source transmit the thin-walled cover 2 that is provided with on medium 6, the body 1 outer end cylinder, are arranged with eccentric retinue cover 7 in the outside of thin-walled cover 2.
As shown in Figure 2, off-centre retinue cover 7 is the eccentric column sleeve structure that is provided with in axle center of endoporus and outer wall.For guaranteeing that retinue is enclosed within that distortion evenly offers 12 grooves 9 on eccentric retinue 7 one weeks of cover when clamping, the bottom land of groove 9 apart from the distance of shaft centers of off-centre retinue cover 7 endoporus 10 from equating.Groove 9 on the eccentric retinue cover 7 is for offering on the radial direction in off-centre retinue cover 7 endoporus 10 axle center.
When the utility model uses, off-centre retinue cover 7 is installed on the thin-walled cover 2, after the hydraulic jack work, the piston rod reach is also passed through 4 reaches of push rod impeller-hub plug, cause the liquid pressure in the annular seal space to transmit medium 6 pressurizeds, when liquid pressure transmission medium 6 acted on pressure on the thin-walled cover 2, resilient sleeve can produce uniform radial elastic distortion, make eccentric retinue cover 7 that strain also take place thereupon, make workpiece self-centering and clamped.
Claims (5)
1. eccentric fixture comprises that body, piston cylinder, axle plug, liquid pressure transmit medium, thin-walled cover, is characterized in that: be arranged with eccentric retinue cover in the outside of thin-walled cover.
2. eccentric fixture according to claim 1 is characterized in that: described eccentric retinue cover is the eccentric column sleeve structure that is provided with in the axle center of endoporus and outer wall.
3. eccentric fixture according to claim 1 and 2 is characterized in that: offer groove on described eccentric retinue one week of cover, the bottom land of groove overlaps the distance of shaft centers of endoporus from equating apart from the off-centre retinue.
4. eccentric fixture according to claim 3 is characterized in that: the groove that described eccentric retinue puts is for offering on the radial direction in off-centre retinue cover endoporus axle center.
5. eccentric fixture according to claim 4 is characterized in that: evenly offer 12 grooves on described eccentric retinue one week of cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200919716U CN201455686U (en) | 2009-07-28 | 2009-07-28 | Eccentric fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200919716U CN201455686U (en) | 2009-07-28 | 2009-07-28 | Eccentric fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201455686U true CN201455686U (en) | 2010-05-12 |
Family
ID=42383038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200919716U Expired - Lifetime CN201455686U (en) | 2009-07-28 | 2009-07-28 | Eccentric fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201455686U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059561A (en) * | 2010-11-19 | 2011-05-18 | 河南省中原内配股份有限公司 | Clamp for quickly changing inner support of cylinder jacket |
| CN102513838A (en) * | 2011-12-08 | 2012-06-27 | 河南省中原内配股份有限公司 | High-precision labyrinth special fixture for cylinder casing processing |
-
2009
- 2009-07-28 CN CN2009200919716U patent/CN201455686U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059561A (en) * | 2010-11-19 | 2011-05-18 | 河南省中原内配股份有限公司 | Clamp for quickly changing inner support of cylinder jacket |
| CN102513838A (en) * | 2011-12-08 | 2012-06-27 | 河南省中原内配股份有限公司 | High-precision labyrinth special fixture for cylinder casing processing |
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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: ZHONGYUAN NEIPEI GROUP CO., LTD. Free format text: FORMER NAME: ZHONGYUAN NEIPEI CO., LTD., HENAN PROV. |
|
| CP03 | Change of name, title or address |
Address after: 454750 Huaihe Road, Mengzhou industrial agglomeration area, Henan, China, No. 69, No. Patentee after: Central Plains Nei Pei Group Plc Address before: 454750 No. 146 Han Yu street, Mengzhou, Henan Patentee before: Zhongyuan Neipei Co., Ltd., Henan Prov. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |
|
| CX01 | Expiry of patent term |