CN201009093Y - Circumferential direction non-gap positioning device of piston internal cavity - Google Patents
Circumferential direction non-gap positioning device of piston internal cavity Download PDFInfo
- Publication number
- CN201009093Y CN201009093Y CNU2006201254218U CN200620125421U CN201009093Y CN 201009093 Y CN201009093 Y CN 201009093Y CN U2006201254218 U CNU2006201254218 U CN U2006201254218U CN 200620125421 U CN200620125421 U CN 200620125421U CN 201009093 Y CN201009093 Y CN 201009093Y
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- positioning sleeve
- positioning
- piston
- hole
- guide pillar
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Abstract
The utility model discloses a circumference gapless positioning device for piston cavity, comprising a positioning plate [1], a positioning sleeve [6] matching to a piston cavity, and a plurality of guide columns [2]; a radial through hole is arranged on the positioning sleeve [6]; the radial through hole is intersect to the positioning sleeve [6] to form through holes [7,12]; a plurality of guide columns [2] pass through the radial through hole to be fixed on the positioning plate [1]; the diameters of the through holes [7,12] are larger than the diameter of the columns [2]; a spring [5] is ringed on the columns [2] of the cavity of the positioning sleeve [6], one end of the spring is fixed, the other end of the spring is pressed on the inner wall at the outer side of the positioning sleeve [6]. The utility model is of high positioning accuracy, no interference on axial positioning, and no over positioning problem.
Description
Technical field
The utility model relates to a kind of piston positioning means, and especially a kind of non-machined surface of piston cavity that utilizes is realized gapless circumferential positioner.
Background technology
In field of machining, the location of workpiece is a ring important in the machining.At different workpiece shapes, people design must the different localization method of design.In piston processing, because the surface of the inner chamber (being used for installing the cavity of crank) of piston is a machined surface, so when the periphery of machining piston, as locating surface, make piston upwards maintain static moving in week, the extruding of axially going up by tail stock can realize the fixing of whole piston, thereby could the processing excircles face.Because piston cavity is a machined surface, precision can guarantee, so piston can be realized circumferential location easily as locating surface, and not interfere with axial location when the location.Along with development of science and technology, going deep into of people's research, developed novel piston again, its inner chamber is the trapezoid cross section, and simultaneously piston no longer needs processing to the surface of inner chamber after cast form, therefore when the processing excircles face, the circumferential location of adopting the piston cavity surface to realize piston as locating surface again will produce and the axial location interference, produces the big or mistake orientation problem in gap.
Summary of the invention
The purpose of this utility model is exactly to solve that above-mentioned piston is circumferentially located with the non-machined surface of inner chamber and the big or mistake orientation problem in gap that produces.
Circumferentially there is not the gap positioner by a kind of piston cavity that the utility model proposes, it comprise positioning disk, with adaptive positioning sleeve and several guide pillars of piston cavity, on positioning sleeve, radially be provided with two or more radial direction through hole, radial direction through hole and positioning sleeve intersect and form two perforations mutually, and several guide pillars pass radial direction through hole and positioning disk is affixed; Two phase perforation diameters make the location be with the swing space greater than the diameter of guide pillar; Be set with spring on the guide pillar of positioning sleeve inner chamber, its end position is fixed, and the other end is squeezed on the inwall in the positioning sleeve outside.
Adopt said structure, when the location, positioning sleeve is extended transversely into the inner chamber of piston, piston is axially forward in the extrusion process, the surface of internal cavity of piston at first pushes the outer surface of positioning sleeve, the periphery that at this moment a side extruding positioning sleeve is arranged, positioning sleeve just produce swing under the extruding of side, from face another side is also contacted with positioning sleeve.Because the location is with the reset response of back-moving spring, so positioning sleeve is to be squeezed on two surfaces of piston cavity all the time, thereby reaches circumferential no gap positioning action.
After piston was machined, positioning sleeve can withdraw from positioning disk and guide pillar when withdrawing from piston cavity, is provided with the positioning sleeve position-limit mechanism on guide pillar, and it is the gag lever post that is positioned at the positioning sleeve inner chamber.When positioning sleeve withdraws from,, make positioning sleeve can not break away from guide pillar like this, make processing convenient like this because the position-limiting action of gag lever post is arranged.
In sum, because the utility model adopts the common mode that cooperates of positioning sleeve, spring and guide pillar, making positioning sleeve is the positioning sleeve that floats, the positioning sleeve that can promote to float when inner cavity surface one side of piston contacts earlier with positioning sleeve is like this swung to the another side, thereby also contact with the another side, therefore can reach location, no gap; The front end of positioning sleeve can vary in size along with the inner chamber of piston and make spring produce different decrements simultaneously, thereby guaranteed that the positioning sleeve front end contacts with the gap of not having all the time of piston cavity, so the utility model positioning accuracy height, interference can be do not produced with axial location, therefore just orientation problem can be do not produced yet.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the left view of Fig. 2.
Among the figure, 1, positioning disk, 2, guide pillar, 3, gag lever post, 4, nut, 5, spring, 6, positioning sleeve, 7, the phase perforation, 8, boss, 9, through hole, 10, piston, 11, screw, 12, the phase perforation.
The specific embodiment
The utility model as shown in Figure 1, it comprises positioning disk 1, positioning sleeve 6, spring 5 and guide pillar 2.Positioning disk 1 by in the through hole 9 be bolted to lathe with the affixed terminal pad of output shaft on.As shown in Figure 2, on the central axis of positioning disk 1, be arranged with two screws 11.Screw 11 is suitable with the threaded one end of guide pillar 2.On positioning sleeve 6, be provided with two identical and radial direction through hole axis normal, each radial direction through hole is different with the diameter that positioning sleeve 6 intersects two the phase perforations 7,12 that form, one side phase perforation 12 and guide pillar 2 slightly larger in diameter, the diameter of a side phase perforation 7 is greater than the diameter of guide pillar 2.So just make positioning sleeve 6 can produce swing.Also can adopt phase perforation 12 frames is arc, makes phase perforation 12 and guide pillar 2 for line contacts, and also can make positioning sleeve 6 produce swing, realizes above-mentioned functions.
Two guide pillars 2 are realized connecting by screw thread and screw with positioning disk 1.Positioning sleeve 6 is sleeved on the guide pillar 2 by two radial direction through hole, and phase perforation 12 places the outside, and it and guide pillar are matched in clearance, and phase perforation 7 places the inboard, and its diameter when making positioning sleeve 6 be squeezed swing, has enough swing spaces greater than the diameter of guide pillar 2.Also be set with spring 5 on every guide pillar 2, spring 5 is positioned at positioning sleeve 6 inner chambers.Be the other end of fixing spring 5 and spacing to positioning sleeve 6, same position is provided with through hole on two guide pillars, is connected with gag lever post 3 in the through hole, and the two ends of gag lever post 3 connect with nut 4, realize gag lever post 3 axial limitings.Gag lever post 3 side is spacing to an end of spring like this, and the another side of gag lever post is carried out spacing to positioning sleeve 6.
The utility model is work like this: as shown in Figure 3, piston 10 openings one end is stuck on the suitable with it boss 8 of positioning disk, and the other end is realized piston axial location from A shown in Figure 3 to extruding by the tailstock of lathe.Snap in the process of positioning disk 1 at piston 10, piston cavity (non-machined surface) will progressively push positioning sleeve 6, the elastic force that overcomes spring 5 promotes positioning sleeve 6 and moves and rotate, when upper side pushes positioning sleeve 6 because of elder generation, positioning sleeve 6 will deflect down, until the extruding downside, on the contrary opposite, and two sides are pushed positioning sleeve 6 simultaneously about final the realization.When two sides were all with positioning sleeve 6 extruding up and down, promptly circumferentially located in the no gap of realization.
Claims (2)
1. a piston cavity does not circumferentially have the gap positioner, it is characterized in that it comprise positioning disk [1], with adaptive positioning sleeve [6] and several guide pillars [2] of piston cavity, on positioning sleeve [6], radially be provided with two or more radial direction through hole, radial direction through hole intersects formation perforation [7,12] mutually with positioning sleeve [6], and several guide pillars [2] pass radial direction through hole and positioning disk [1] is affixed; Phase perforation [7,12] diameter makes positioning sleeve [6] that the swing space be arranged greater than the diameter of guide pillar [2]; Be set with spring [5] on the guide pillar [2] of positioning sleeve [6] inner chamber, its end position is fixed, and the other end is squeezed on the inwall in positioning sleeve [6] outside.
2. positioner according to claim 1 is characterized in that being provided with the positioning sleeve position-limit mechanism on guide pillar [2], and it is the gag lever post [3] that is positioned at positioning sleeve [6] inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201254218U CN201009093Y (en) | 2006-11-24 | 2006-11-24 | Circumferential direction non-gap positioning device of piston internal cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201254218U CN201009093Y (en) | 2006-11-24 | 2006-11-24 | Circumferential direction non-gap positioning device of piston internal cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201009093Y true CN201009093Y (en) | 2008-01-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201254218U Expired - Fee Related CN201009093Y (en) | 2006-11-24 | 2006-11-24 | Circumferential direction non-gap positioning device of piston internal cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201009093Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025082A (en) * | 2009-09-22 | 2011-04-20 | 广州广电运通金融电子股份有限公司 | Cashbox connector |
| CN105351300A (en) * | 2015-12-16 | 2016-02-24 | 苏州太湖国家旅游度假区华刚金属制品厂 | Spring fastener with function of spacing adjusting |
| CN106312603A (en) * | 2015-07-10 | 2017-01-11 | 强哲菲 | Automatic precise clamp and production line for piston machining |
| CN108859070A (en) * | 2018-06-20 | 2018-11-23 | 宁波方正汽车模具股份有限公司 | Automotive oil tank cooling shaping mould |
-
2006
- 2006-11-24 CN CNU2006201254218U patent/CN201009093Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025082A (en) * | 2009-09-22 | 2011-04-20 | 广州广电运通金融电子股份有限公司 | Cashbox connector |
| CN106312603A (en) * | 2015-07-10 | 2017-01-11 | 强哲菲 | Automatic precise clamp and production line for piston machining |
| CN106312603B (en) * | 2015-07-10 | 2018-10-23 | 强哲菲 | Automatic precision clamps and production line for Piston Machining |
| CN105351300A (en) * | 2015-12-16 | 2016-02-24 | 苏州太湖国家旅游度假区华刚金属制品厂 | Spring fastener with function of spacing adjusting |
| CN108859070A (en) * | 2018-06-20 | 2018-11-23 | 宁波方正汽车模具股份有限公司 | Automotive oil tank cooling shaping mould |
| CN108859070B (en) * | 2018-06-20 | 2020-06-30 | 宁波方正汽车模具股份有限公司 | Cooling and shaping die for automobile oil tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CSR CHANG JING VEHICLE CO., LTD. Free format text: FORMER OWNER: TONGLING VEHICLE PLANT, CHINA NANCHE GROUP Effective date: 20080620 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080620 Address after: New District, Jiangxia Economic Development Zone, Hubei, Wuhan Province: 430212 Patentee after: China South Locomotive & Rolling Stock Changjiang Vehicle Company Address before: Tongling vehicle factory, Anhui, Tongling Province, China: 244142 Patentee before: CSR Tongling Rolling Stock Works |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080123 Termination date: 20141124 |
|
| EXPY | Termination of patent right or utility model |