CN203045327U - Hydraulic centre rest with adjustable opening - Google Patents
Hydraulic centre rest with adjustable opening Download PDFInfo
- Publication number
- CN203045327U CN203045327U CN 201320074696 CN201320074696U CN203045327U CN 203045327 U CN203045327 U CN 203045327U CN 201320074696 CN201320074696 CN 201320074696 CN 201320074696 U CN201320074696 U CN 201320074696U CN 203045327 U CN203045327 U CN 203045327U
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- sleeve
- bearing
- sleeves
- hydraulic cylinder
- workpiece
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- Expired - Fee Related
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Abstract
A hydraulic centre rest with an adjustable opening comprises a pressing board, a centre rest body, a nut, an end cover, a screw, a hand wheel, a pin, an adjusting threaded rod, sleeves, a pin shaft, a roller pin bearing, a locking hand wheel, a hydraulic cylinder and a flange. The centre rest body is fixed on a machine tool guiding rail, the roller pin bearing is assembled in an opening groove at one end of each sleeve, the other ends of the sleeves are connected with the adjusting threaded rod, two groups of sleeve bearing supporting components which are adjusted and controlled by the hand wheel are used for bearing a workpiece shaft through horizontal bearing holes in the centre rest body, the tail portion of another group of sleeve bearing supporting components is in linkage with the hydraulic cylinder, the hydraulic cylinder is in linkage with the sleeve bearing supporting components and is contacted with and in press fit with a workpiece to form supporting, and the sleeve bearing supporting components are retracted to form an installation and demounting space of the workpiece. An axial long groove is formed in one side of an outer circle of the supporting sleeves, a cylinder at the end portion of the locking hand wheel on the centre rest body is clamped into the long groove of the sleeves, not only is rotation of the sleeves limited, but also the sleeves can be locked after the sleeves are adjusted to be in place, and the sleeves controlled by the hydraulic cylinder are limited in rotation instead of being locked.
Description
Technical field
The utility model relates to the adjustable hydraulic pressure centre frame of a kind of opening structure, belongs to the mechanical-hydraulic compound gearing, is mainly used in supporting and the adjustment of machine tooling slender piece.
Background technology
When machine tooling thin and long shafts workpiece does not have the tailstock supporting, usually adopt manual centre frame supporting, perhaps adopt the supporting of self-centering hydraulic pressure centre frame, manually centre frame need the operator frequently adjust, fastening, the difficult maintenance of precision and labour intensity are big, self-centering hydraulic pressure centre frame is generally the revolution enclosed construction, the workpiece loading and unloading inconvenience.
Summary of the invention
For the better processing thin and long shafts workpiece of realizing does not have the supporting of tailstock, the utility model provide a kind of rational in infrastructure, be easy to make, handle the adjustable hydraulic pressure centre frame of opening easy to adjust structure, move the compound action of supporting-point by two fixed piovt points and hydraulic control, realization is regulated the supporting of shaft-like workpiece, after hydraulic pressure moved the supporting-point yielding, workpiece can be installed and removed easily.
The technical solution of the utility model is: being used for axial workpiece does not have the adjustable hydraulic pressure centre frame of tailstock supporting opening, comprises pressing plate, center support body, nut, end cap, screw, handwheel, pin, adjusting screw(rod), sleeve, bearing pin, needle bearing, locking handwheel, hydraulic cylinder, flange.Described center support body is fixed on the machine tool guideway by location datum level and pressing plate, nut effect, be equipped with needle bearing by bearing pin in the described sleeve one end opening groove, the other end of sleeve is connected with adjusting screw(rod), handwheel is fixed on the adjusting screw(rod) by pin, and flange is fixed on the support body of center by screw.The sleeve bearing bearing assembly that described handwheel is regulated control has two groups of horizontal supporting holes of passing through on the support body of center that workpiece spindle is formed 2 supportings, other one group of sleeve bearing assembly is connected with hydraulic cylinder at afterbody, hydraulic cylinder is fixed on the support body of center by flange, screw, the sleeve bearing bearing assembly of hydraulic cylinder interlock control forms the processing supporting role with the pressing that contacts of workpiece, and the retraction of sleeve bearing assembly forms the mounting or dismounting space of workpiece.Described three groups entad bearing sleeve have axial elongated slot in cylindrical one side, the end cylinder that is arranged on the locking handwheel on the support body of center snaps in the elongated slot of sleeve, not only limit the rotation of sleeve but also can lock after sleeve is adjusted to the right place, the sleeve of hydraulic cylinder control only limits and rotates and need not lock.
During application, use the verification mandrel consistent with the workpiece to be machined axle that adjustment two horizontal supporting sleeves, locking then under the tailstock bearing state are being arranged.The exact position of sleeve bearing supporting-point is determined according to support body upper bush bearing hole position, the corresponding center of workpiece spindle size.
Description of drawings
The specific embodiment
Referring to accompanying drawing, the utility model provides the adjustable hydraulic pressure centre frame of a kind of opening structure, comprises pressing plate 1, center support body 2, nut 3, end cap 4, screw 5, handwheel 6, pin 7, adjusting screw(rod) 8, sleeve 9, bearing pin 10, needle bearing 11, locking handwheel 12, hydraulic cylinder 13, screw 14, flange 15.
The center support body 2 of the adjustable hydraulic pressure centre frame of described a kind of opening structure is fixed on the machine tool guideway by location datum level and pressing plate 1, nut 3 effects, be equipped with needle bearing 11 by bearing pin 10 in the described sleeve 9 one end opening grooves, the other end of sleeve 9 is connected with adjusting screw(rod) 8, handwheel 6 is fixed on the adjusting screw(rod) 8 by pin 7, and flange 15 is fixed on the center support body 2 by screw 5.
The sleeve bearing bearing assembly that described handwheel is regulated control has two groups of horizontal supporting holes of passing through on the support body of center that workpiece spindle is formed 2 supportings, other one group of sleeve bearing assembly is connected with hydraulic cylinder 13 at afterbody, hydraulic cylinder 13 is fixed on the center support body 2 by flange 15, screw 14, the sleeve bearing bearing assembly of hydraulic cylinder 13 interlock controls forms the processing supporting role with the pressing that contacts of workpiece, and the retraction of sleeve bearing assembly forms the mounting or dismounting space of workpiece.
Described three groups entad bearing sleeve 9 have axial elongated slot in cylindrical one side, the end cylinder that is arranged on the locking handwheel 12 on the center support body 2 snaps in the elongated slot of sleeve 9, not only limit the rotation of sleeve 9 but also can lock after sleeve 9 is adjusted to the right place, 9 restrictions of the sleeve of hydraulic cylinder control are rotated and need do not locked.
Claims (3)
1. adjustable hydraulic pressure centre frame of opening, it is characterized in that comprising pressing plate, center support body, nut, end cap, screw, handwheel, pin, adjusting screw(rod), sleeve, bearing pin, needle bearing, locking handwheel, hydraulic cylinder, flange, be equipped with needle bearing by bearing pin in the described sleeve one end opening groove, the other end of sleeve is connected with adjusting screw(rod), handwheel is fixed on the adjusting screw(rod) by pin, and flange is fixed on the support body of center by screw.
2. the adjustable hydraulic pressure centre frame of a kind of opening as claimed in claim 1, the sleeve bearing bearing assembly that it is characterized in that the handwheel adjusting control in the structure has two groups of horizontal supporting holes of passing through on the support body of center that workpiece spindle is formed supporting, another group sleeve bearing assembly is connected with hydraulic cylinder at afterbody, the sleeve bearing bearing assembly of hydraulic cylinder interlock control forms supporting with the pressing that contacts of workpiece, and the retraction of sleeve bearing assembly forms the mounting or dismounting space of workpiece.
3. the adjustable hydraulic pressure centre frame of a kind of opening as claimed in claim 1, it is characterized in that the bearing sleeve in the structure has axial elongated slot in cylindrical one side, the end cylinder that is arranged on the locking handwheel on the support body of center snaps in the elongated slot of sleeve, not only limit the rotation of sleeve but also can lock after sleeve is adjusted to the right place, the sleeve of hydraulic cylinder control only limits rotation and does not lock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320074696 CN203045327U (en) | 2013-01-29 | 2013-01-29 | Hydraulic centre rest with adjustable opening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320074696 CN203045327U (en) | 2013-01-29 | 2013-01-29 | Hydraulic centre rest with adjustable opening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203045327U true CN203045327U (en) | 2013-07-10 |
Family
ID=48728323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320074696 Expired - Fee Related CN203045327U (en) | 2013-01-29 | 2013-01-29 | Hydraulic centre rest with adjustable opening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203045327U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962852A (en) * | 2013-01-29 | 2014-08-06 | 盐城纺织职业技术学院 | Hydraulic center frame with adjustable opening |
| CN106181502A (en) * | 2016-08-31 | 2016-12-07 | 张家港市华扬冶金机械有限公司 | One facilitates the irregular work piece holder of intermetallic composite coating |
| CN109530765A (en) * | 2018-12-12 | 2019-03-29 | 无锡鹰贝精密轴承有限公司 | A kind of valve class elongated shaft part milling method |
-
2013
- 2013-01-29 CN CN 201320074696 patent/CN203045327U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962852A (en) * | 2013-01-29 | 2014-08-06 | 盐城纺织职业技术学院 | Hydraulic center frame with adjustable opening |
| CN106181502A (en) * | 2016-08-31 | 2016-12-07 | 张家港市华扬冶金机械有限公司 | One facilitates the irregular work piece holder of intermetallic composite coating |
| CN109530765A (en) * | 2018-12-12 | 2019-03-29 | 无锡鹰贝精密轴承有限公司 | A kind of valve class elongated shaft part milling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20140129 |