CN201264164Y - Combined self-centering clamping mechanism - Google Patents
Combined self-centering clamping mechanism Download PDFInfo
- Publication number
- CN201264164Y CN201264164Y CNU2008201497011U CN200820149701U CN201264164Y CN 201264164 Y CN201264164 Y CN 201264164Y CN U2008201497011 U CNU2008201497011 U CN U2008201497011U CN 200820149701 U CN200820149701 U CN 200820149701U CN 201264164 Y CN201264164 Y CN 201264164Y
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- CN
- China
- Prior art keywords
- plunger
- piston
- chuck body
- sleeve
- annular seal
- 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 a combined automatic centering and clamping device comprising a clamp body and a hydrocylinder internally provided with a piston, wherein one end of the clamp body is provided with a plunger piston, and the other end is sealed; the piston supports and is connected with the plunger piston; the clamp body behind the plunger piston is internally provided with a sealing cavity leading to the outer surface of the circumference of the clamp body; an elastic sleeve is arranged at the circumference of the clamp body corresponding to the sealing cavity; the sealing cavity is internally provided with pressure transmission medium; and the outer circumference of the elastic sleeve is also sleeved with an elastic expanding sleeve. The combined automatic centering and clamping device has high centering precision, rapid clamping speed and small shape error.
Description
Technical field
The utility model relates to the Machining Technology field, especially a kind of anchor clamps that are applicable to the processing sleeve part.
Background technology
At present, the machining of the sleeve part of degree of precision generally adopts " liquid plastics thin-walled cover " anchor clamps to realize self-centering and clamping.This centering clamping mode has the advantage that centering precision is higher, clamp speeds is fast, but its shortcoming also is very tangible.Mainly be this frock under free state, form error is little; Descend form error bigger in working order, anchor clamps and workpiece endoporus contact area are little during duty, cause the distortion of workpiece endoporus easily, have seriously influenced the quality of product, cause product quality to descend, and cost rises, and has weakened Enterprises'Competitiveness.
The utility model content
The purpose of this utility model provides a kind of centering precision height, the combination self-alignment cramping arrangement that clamp speeds is fast and form error is little.
For achieving the above object, the utility model adopts following technical scheme: comprise that inside is provided with the hydraulic jack and the chuck body of piston, chuck body one end is provided with plunger, other end sealing is provided with, described piston is connected with the plunger roof pressure, is provided with the annular seal space that leads to chuck body border outer surface in the chuck body behind plunger, and the chuck body border of corresponding annular seal space is arranged with resilient sleeve, be provided with pressure transmission medium in the annular seal space, the outer ring of resilient sleeve also is arranged with elastic expansion-sleeve.
Between piston and plunger, be provided with push rod, be provided with adapter sleeve, be provided with plunger bushing in the outer ring of plunger and push rod contact position in the outer ring of piston and push rod contact position.
The blind end of described chuck body is provided with plug screw.
When on lathe that hydraulic means is arranged or Digit Control Machine Tool, using the combination self-alignment cramping arrangement, whole device is horizontally disposed with, in original state, chamber, a hydraulic jack left side does not have oil, hydraulic cylinder piston is in the high order end of oil cylinder, the interior annular seal space volume maximum of chuck body this moment, the volume maximum of fluidity medium, resilient sleeve does not stress, and is in releasing orientation; Be installed into the outside of elastic expansion-sleeve when workpiece, hydraulic jack left side chamber oil-feed, hydraulic cylinder piston moves to right-hand member from left end, promoting push rod also moves right, push rod promotes plunger and pushes to chuck body inside, the volume of annular seal space is reduced, the volume of fluidity medium is also reduced, the fluidity medium affacts pressure on the inwall of resilient sleeve simultaneously, do one's utmost to enlarge the volume of annular seal space, impel the circumferentially even strain of resilient sleeve, the strain that resilient sleeve takes place is radially evenly lifted elastic expansion-sleeve, and the workpiece endoporus is by radial location, clamped; After the workpiece completion of processing, the right chamber oil-feed of hydraulic jack, piston moves from right to left side, push rod, axle are filled in no longer stressed, and the pressure in the annular seal space will promote these parts and be moved to the left, and the volume in the annular seal space increases, the pressure that acts on the resilient sleeve inwall reduces, the resilient sleeve that strain takes place returns to the preceding original state of distortion, and elastic expansion-sleeve radially evenly shrinks, and the workpiece of clamping is released.The utility model also has low, the high product quality advantages of production cost, has the good market competitiveness.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Comprise that by combination self-alignment cramping arrangement shown in Figure 1 inside is provided with the hydraulic jack 10 and the chuck body 1 of piston 11, chuck body 1 one ends are provided with plunger 2, the other end is provided with by plug screw 5 sealings, between piston 11 and plunger 2, be provided with push rod 8, outer ring in piston 11 and push rod 8 contact positions is provided with adapter sleeve 9, outer ring in plunger 2 and push rod 8 contact positions is provided with plunger bushing 7, be provided with the annular seal space that leads to chuck body 1 border outer surface in the chuck body 1 behind plunger 2, chuck body 1 border of corresponding annular seal space is arranged with resilient sleeve 3, be filled with fluidity medium 4 in the annular seal space, the outer ring of resilient sleeve 3 also is arranged with elastic expansion-sleeve 6.
When on lathe that hydraulic means is arranged or Digit Control Machine Tool, using the combination self-alignment cramping arrangement, in original state, hydraulic jack 10 left chambeies do not have oil, piston 11 is in the high order end of hydraulic jack 10, annular seal space volume maximum in this moment chuck body 1, the volume maximum of fluidity medium 4, resilient sleeve 3 does not stress, and is in releasing orientation; Be installed into the outside of resilient sleeve 3 when workpiece, pull the hydraulic clamp handle, hydraulic jack 10 left chamber oil-feeds, piston 11 moves to right-hand member from left end, promote push rod 8 also to moving to left, push rod 8 promotes plunger 2 and pushes to chuck body 1 inside, the volume of annular seal space is reduced, the volume of fluidity medium 4 is also reduced, fluidity medium 4 affacts pressure on the inwall of resilient sleeve 3 simultaneously, does one's utmost to enlarge the volume of annular seal space, impels resilient sleeve 3 circumferentially even strains, the strain that resilient sleeve 3 takes place is radially evenly lifted elastic expansion-sleeve 6, and the workpiece endoporus is by radial location, clamped; After the workpiece completion of processing, pull the hydraulic clamp handle to unclamping the position, hydraulic jack 10 right chamber oil-feeds, piston 11 are moved from right to left side, and push rod 8, plunger 2 are no longer stressed, pressure in the annular seal space will promote these parts and be moved to the left, volume in the annular seal space increases, and the pressure that acts on resilient sleeve 3 inwalls reduces, and the resilient sleeve 3 that strain takes place returns to the preceding original state of distortion, elastic expansion-sleeve 6 radially evenly shrinks, and the workpiece of clamping is released.
Claims (3)
1. one kind is made up self-alignment cramping arrangement, comprise that inside is provided with the hydraulic jack and the chuck body of piston, chuck body one end is provided with plunger, other end sealing is provided with, described piston is connected with the plunger roof pressure, is provided with the annular seal space that leads to chuck body border outer surface in the chuck body behind plunger, it is characterized in that: the chuck body border of corresponding annular seal space is arranged with resilient sleeve, be filled with pressure transmission medium in the annular seal space, the outer ring of resilient sleeve also is arranged with elastic expansion-sleeve.
2. combination self-alignment cramping arrangement as claimed in claim 1 is characterized in that: be provided with push rod between piston and plunger, be provided with adapter sleeve in the outer ring of piston and push rod contact position, be provided with plunger bushing in the outer ring of plunger and push rod contact position.
3. combination self-alignment cramping arrangement as claimed in claim 2 is characterized in that: the blind end of described chuck body is provided with plug screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201497011U CN201264164Y (en) | 2008-10-14 | 2008-10-14 | Combined self-centering clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201497011U CN201264164Y (en) | 2008-10-14 | 2008-10-14 | Combined self-centering clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201264164Y true CN201264164Y (en) | 2009-07-01 |
Family
ID=40830515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201497011U Expired - Lifetime CN201264164Y (en) | 2008-10-14 | 2008-10-14 | Combined self-centering clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201264164Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744434A (en) * | 2012-07-28 | 2012-10-24 | 湖北省缸套厂 | Liquid plastic clamp of cylinder sleeve |
| CN104057331A (en) * | 2014-06-12 | 2014-09-24 | 苏州华徕光电仪器有限公司 | Four-force intersected single-workpiece linked clamping device |
| CN108673205A (en) * | 2018-05-17 | 2018-10-19 | 西安交通大学 | A kind of complex revolving body thin-wall part type face flexible support chucking appliance system |
| CN109202508A (en) * | 2018-10-10 | 2019-01-15 | 潍坊职业学院 | A kind of plunger bushing drills and reams hole positioning device and processing method |
-
2008
- 2008-10-14 CN CNU2008201497011U patent/CN201264164Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744434A (en) * | 2012-07-28 | 2012-10-24 | 湖北省缸套厂 | Liquid plastic clamp of cylinder sleeve |
| CN102744434B (en) * | 2012-07-28 | 2014-10-22 | 湖北省缸套厂 | Liquid plastic clamp of cylinder sleeve |
| CN104057331A (en) * | 2014-06-12 | 2014-09-24 | 苏州华徕光电仪器有限公司 | Four-force intersected single-workpiece linked clamping device |
| CN108673205A (en) * | 2018-05-17 | 2018-10-19 | 西安交通大学 | A kind of complex revolving body thin-wall part type face flexible support chucking appliance system |
| CN109202508A (en) * | 2018-10-10 | 2019-01-15 | 潍坊职业学院 | A kind of plunger bushing drills and reams hole positioning device and processing method |
| CN109202508B (en) * | 2018-10-10 | 2019-11-12 | 潍坊职业学院 | A kind of plunger bushing drills and reams hole positioning device and processing method |
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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 Avenue, Mengzhou, Henan Patentee before: Zhongyuan Neipei Co., Ltd., Henan Prov. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090701 |