CN2210736Y - Force-showing centre - Google Patents
Force-showing centre Download PDFInfo
- Publication number
- CN2210736Y CN2210736Y CN 95203276 CN95203276U CN2210736Y CN 2210736 Y CN2210736 Y CN 2210736Y CN 95203276 CN95203276 CN 95203276 CN 95203276 U CN95203276 U CN 95203276U CN 2210736 Y CN2210736 Y CN 2210736Y
- Authority
- CN
- China
- Prior art keywords
- force
- annular
- piston
- oil pocket
- centre
- 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 belongs to work and transporting classes, particularly a force-showing centre. The force-showing centre comprises a casing, a bearing, a center shaft and a butterfly spring, wherein, a circular ring-shaped piston bush is arranged in the bore of the head casing section of a basal body; one end face of the circular ring-shaped piston bush is provided with a U-shaped oil pocket; one end of a ring piston matched with the U-shaped oil pocket is pushed against a plane thrust bearing, and the other end is arranged in the U-shaped oil pocket; one hole one the lateral face of the U-shaped oil pocket is communicated with a liquid pressure gauge on the excircle of the head of the basal body; the pushing force can be directly displayed by the liquid pressure gauge. The aim of the utility model lies in that a centre which has a simple structure and can directly display the value of the pushing force is provided.
Description
The utility model belongs to operation, transportation class, particularly relates to a kind of Force-showing centre.
Employed live center on the machining industry is of a great variety now, mainly is precision of solution own and intensity from its structure.The application number of bulletin is 87210600 " a kind of live center " as Patent Office of the People's Republic of China on June 29th, 88, and this is top is made up of housing, tail spindle, bearing cap, butterfly spring.It adopts taper roll bearing and double-row angular contact ball bearing, and the bearing capacity of live center is increased, and has improved machining accuracy.But this top size that can't show and control bearing force.And now along with machined development already, in order to guarantee the crudy of some part, require tail centre that constant pressure is arranged, and the existing top size that just can't intuitively show pressure, can only be with operator's experience and the size of feeling to determine bearing force.
The purpose of this utility model provides and a kind ofly can be directly shows the top of bearing force size on top.
The technical solution of the utility model is: the Force-showing centre matrix is made up of taper shank and head shell, piston bush and piston are equipped with in head shell endoporus bottom, one end of piston withstands on the plain thrust bearing, piston bush is an annular, have an annular U type oil pocket on the one end, have spring to withstand on annular piston one end face in the oil pocket, the Pressure gauge on U type oil pocket side has a hole and is fixed in the base body housing periphery communicates.
The utility model is simple in structure, can show the size of bearing force easily, is convenient to control in the processing bearing force to improve machining accuracy.
Embodiment of the present utility model is illustrated in conjunction with the accompanying drawings.
Accompanying drawing 1 is the Force-showing centre structure chart.
As shown in Figure 1, matrix (1) is made up of taper shank and head, piston bush (2) and piston (6) are installed in the head shell endoporus, piston bush (2) is an annular, have annular U type oil pocket (4) on one end face of annular piston bush (2), spring (3) is housed in the annular oil cavity (4), piston (6) is an annular, have two seal grooves on its inside and outside circle, the side of the annular oil cavity (4) of annular piston bush (2) has a hole, and this hole communicates with Pressure gauge (5) on the head shell periphery that is fixed in matrix (1).When Force-showing centre holds workpiece, bearing force is passed on the butterfly spring (8) and bearing (7) that is contained on the tail spindle by tail spindle (9), by plain thrust bearing (7) bearing force is passed to annular piston (6), hydraulic oil flows in the hydralic pressure gauge (5) through oil pocket (4) and oil pocket (4) lateral aperture, owing to the cushioning effect of butterfly spring (8) is arranged, makes the size of the stable demonstration bearing force of hydralic pressure gauge (5) energy.This Force-showing centre is simple in structure, and is easy to use.
Claims (2)
1, a kind of Force-showing centre, it comprises matrix, bearing, tail spindle, butterfly spring, it is characterized in that being equipped with piston bush (2) and piston (6) in the head shell endoporus of matrix (1), an end of piston (6) withstands on the end face of plain thrust bearing (7).
2, Force-showing centre according to claim 1, it is characterized in that piston bush (2) is an annular, have annular U type oil pocket (4) on one end face of annular piston bush (2), spring (3) is housed in the annular oil cavity (4), piston (6) is an annular, have two seal grooves on its inside and outside circle, the side of the annular oil cavity (4) of annular piston bush (2) has a hole, and this hole communicates with Pressure gauge (5) on being fixed in matrix (1) head shell periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95203276 CN2210736Y (en) | 1995-02-18 | 1995-02-18 | Force-showing centre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95203276 CN2210736Y (en) | 1995-02-18 | 1995-02-18 | Force-showing centre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2210736Y true CN2210736Y (en) | 1995-10-25 |
Family
ID=33856171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95203276 Expired - Fee Related CN2210736Y (en) | 1995-02-18 | 1995-02-18 | Force-showing centre |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2210736Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133651A (en) * | 2011-04-14 | 2011-07-27 | 大连机床集团有限责任公司 | Tailstock capable of displaying ejection force |
| CN103447860A (en) * | 2013-08-27 | 2013-12-18 | 西北工业大学 | Clamp for measuring milling force for milling and processing blade fixed inclining angle |
| CN104139191A (en) * | 2013-05-07 | 2014-11-12 | 庄增信 | Ejector pin device with rotating speed display function |
-
1995
- 1995-02-18 CN CN 95203276 patent/CN2210736Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133651A (en) * | 2011-04-14 | 2011-07-27 | 大连机床集团有限责任公司 | Tailstock capable of displaying ejection force |
| CN102133651B (en) * | 2011-04-14 | 2015-09-09 | 大连机床(数控)股份有限公司 | The tailstock of bearing force can be shown |
| CN104139191A (en) * | 2013-05-07 | 2014-11-12 | 庄增信 | Ejector pin device with rotating speed display function |
| CN104139191B (en) * | 2013-05-07 | 2016-12-28 | 庄增信 | The push pin device that tool rotating speed shows |
| CN103447860A (en) * | 2013-08-27 | 2013-12-18 | 西北工业大学 | Clamp for measuring milling force for milling and processing blade fixed inclining angle |
| CN103447860B (en) * | 2013-08-27 | 2016-03-02 | 西北工业大学 | A kind of fixture measured for blade constant inclination angle Milling Force in Peripheral Milling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |