CN203061915U - Wedge mechanism of hydraulic type expanding mandrel - Google Patents
Wedge mechanism of hydraulic type expanding mandrel Download PDFInfo
- Publication number
- CN203061915U CN203061915U CN 201220683640 CN201220683640U CN203061915U CN 203061915 U CN203061915 U CN 203061915U CN 201220683640 CN201220683640 CN 201220683640 CN 201220683640 U CN201220683640 U CN 201220683640U CN 203061915 U CN203061915 U CN 203061915U
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- wedge
- voussoir
- cover
- hydraulic cylinder
- piston
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Abstract
The utility model relates to a wedge mechanism, in particular to a wedge mechanism of a hydraulic type expanding mandrel. The wedge mechanism of the hydraulic type expanding mandrel comprises a base, a hydraulic cylinder fixed on the base, a piston arranged inside the hydraulic cylinder, a compression spring used for connecting the piston and the bottom of the interior of the hydraulic cylinder, a guiding rod fixedly connected with the piston, a wedge block fixedly connected with the guiding rod, a wedge sleeve sleeved outside the wedge block, and a spring sleeve in sliding fit with the wedge block and the wedge sleeve, wherein the positions, in sliding fit with the wedge block and the wedge sleeve, of the two ends of the spring sleeve are detachable oblique surfaces, a connection pin is arranged in the middle of the spring sleeve and penetrates through a through hole correspondingly formed in the wedge sleeve, the end portion of the connection pin stretches towards a groove correspondingly formed in the wedge block, and space allowing the connection pin to move within proper ranges is reserved in the through hole and in the groove. The wedge mechanism of the hydraulic type expanding mandrel is high in positioning accuracy, saving in energy consumption, low in cost, strong in operability, and high in working efficiency.
Description
Technical field
The utility model relates to a kind of wedge mechanism, is specifically related to a kind of wedge mechanism of fluid pressure type expansion axle.
Background technology
In the machining manufacturing industry, location to workpiece is even more important, traditional positioner has adopted the mode of being exerted pressure in the outside of workpiece more, workpiece is navigated to the desired position, the mode of this location only is fit to the solid workpiece of part, and for some telescopic workpiece or the workpiece of thin wall-type, if adopt outside mode of exerting pressure to exist following some shortcomings: 1, adopt the workpiece of the telescopic or thin wall-type that the relatively poor material of toughness makes for some, if adopt the outside mode that clamps or its to inhomogeneous distortion or the damage that then easily causes workpiece of workpiece institute applied pressure, thereby influence the accuracy of its location; 2, the detent mechanism of traditional employing lever principle, arranging of its force transferring part is more, mechanism's complexity, the stroke of clamping or tensioning is bigger, has the consumption of unnecessary power, is unfavorable for saving energy consumption, reduces cost; 3, some traditional manual positioning devices have increased the operating procedure of workpiece in position fixing process, make its operability relatively poor, and operating efficiency is lower.
The utility model content
The technical problems to be solved in the utility model provides a kind of even strain after utilizing flexible member stressed, realization is to the location tensioning of workpiece, and its positioning accuracy height is saved energy consumption, cost is low, the wedge mechanism of the fluid pressure type expansion axle of strong operability and high efficiency.
In order to solve the problems of the technologies described above, the utility model provides a kind of wedge mechanism of fluid pressure type expansion axle, include pedestal, be fixed in the hydraulic cylinder on the pedestal, place the piston of hydraulic cylinder inside, the compression spring that connects piston and hydraulic cylinder inner bottom part, the guide post of fixedlying connected with piston, the voussoir of fixedlying connected with guide post, be placed in the cover of wedge of voussoir outside, spring spool with voussoir and cover of wedge sliding fit, wherein, the sliding fit place of the two ends of described spring spool and described voussoir and cover of wedge is detachable inclined-plane, the middle part of described spring spool is provided with connecting pin, this connecting pin passes the corresponding set through hole of described cover of wedge, and the corresponding groove that arranges of described voussoir is stretched in its end, and described through hole and described groove leave the gap of moving for described connecting pin in suitable scope.
When hydraulic fluid flows into hydraulic cylinder, piston promotes guide post and moves right, guide post drives the voussoir of fixedlying connected with it and moves right, when the end of voussoir and described cover of wedge offsets, voussoir promotes cover of wedge and moves along the same axis, in this process, described connecting pin does relative motion in being mated the gap of setting, define the moving range of whole voussoir and cover of wedge, simultaneously, the inclined-plane of described voussoir and cover of wedge is slidingly matched with the inclined surface at described spring spool two ends respectively, to realize expanding outwardly of spring spool, give workpiece one external tension force, thereby realize the accurate location to telescopic or thin wall-type workpiece; When the fluid that flows into hydraulic cylinder is return, the compression spring is given piston one thrust left, drive voussoir and cover of wedge while to left movement by guide post, the inclined-plane of described voussoir and cover of wedge is slidingly matched with the inclined surface at described spring spool two ends respectively, spring spool is shunk, tension force to workpiece disappears, thereby unclamps workpiece.
Adopt the wedge mechanism of the fluid pressure type expansion axle of technique scheme to have following advantage: 1, owing to adopted cooperating of spring spool and wedge mechanism, make spring spool more even to the tension force that workpiece produces, and be easy to regulate, therefore can not cause distortion or damage to workpiece, thereby reach pinpoint effect; 2, the mode that has adopted the inclined-plane to be slidingly matched owing to wedge mechanism, the power transmission stroke in the whole layoutprocedure is short, has avoided the loss of power in the power transmission process of long distance, therefore is conducive to save energy consumption and reduces cost; 3, adopted the power source of fluid pressure type, the operating mechanism of automation is conducive to save manpower, and strong operability has improved operating efficiency simultaneously.
As preferred version, consider that voussoir and cover of wedge in mobile process, can produce bigger wearing and tearing at the end face that often offsets, the end that described cover of wedge and described voussoir offset is provided with packing ring.
Description of drawings
Fig. 1 is the main TV structure schematic diagram of the wedge mechanism of the utility model embodiment fluid pressure type expansion axle.
The specific embodiment
Below in conjunction with drawings and Examples technical solutions of the utility model are further specified:
As shown in Figure 1, the utility model provides a kind of wedge mechanism of fluid pressure type expansion axle, include pedestal 1, be fixed in the hydraulic cylinder on the pedestal 1, place the piston 2 of hydraulic cylinder inside, the compression spring 3 that connects piston 2 and hydraulic cylinder inner bottom part, the guide post 4 of fixedlying connected with piston 2, the voussoir 5 of fixedlying connected with guide post 4, be placed in the cover of wedge 6 of voussoir 5 outsides, spring spool 8 with voussoir 5 and cover of wedge 6 sliding fits, wherein, the sliding fit place of the two ends of spring spool 8 and voussoir 5 and cover of wedge 6 is detachable inclined-plane, the middle part of spring spool 8 is provided with connecting pin 7, this connecting pin 7 passes the set through hole of cover of wedge 6 correspondences, and the voussoir 5 corresponding grooves that arrange are stretched in its end, through hole and groove leave the gap of moving for connecting pin 7 in suitable scope, in addition, cover of wedge 6 is provided with packing ring with the end that voussoir 5 offsets.
Specifically be to use method to be: when hydraulic fluid flows into hydraulic cylinder, piston 2 promotes guide post 4 and moves right, guide post 4 drives the voussoir 5 of fixedlying connected with it and moves right, when the end of voussoir 5 and cover of wedge 6 offsets, voussoir 5 promotes cover of wedge 6 and moves along the same axis, in this process, connecting pin 7 does relative motion in being mated the gap of setting, define the moving range of whole voussoir 5 and cover of wedge 6, simultaneously, the inclined-plane of voussoir 5 and cover of wedge 6 is slidingly matched with the inclined surface at spring spool 8 two ends respectively, to realize expanding outwardly of spring spool 8, give workpiece 9 one external tension force, thereby realize the accurate location to telescopic or thin wall-type workpiece 9; When the fluid that flows into hydraulic cylinder is return, compression spring 3 is given piston 2 one thrust left, drive voussoirs 5 and cover of wedge 6 simultaneously to left movement by guide post 4, the inclined-plane of voussoir 5 and cover of wedge 6 is slidingly matched with the inclined surface at spring spool 8 two ends respectively, spring spool 8 is shunk, tension force to workpiece 9 disappears, thereby unclamps workpiece 9.
Above-described only is preferred embodiment of the present utility model; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from the utility model structure; can also make some distortion and improvement; these also should be considered as protection domain of the present utility model, and these can not influence effect and practical applicability that the utility model is implemented.
Claims (2)
1. the wedge mechanism of fluid pressure type expansion axle, include pedestal, be fixed in the hydraulic cylinder on the pedestal, place the piston of hydraulic cylinder inside, the compression spring that connects piston and hydraulic cylinder inner bottom part, the guide post of fixedlying connected with piston, the voussoir of fixedlying connected with guide post, be placed in the cover of wedge of voussoir outside, spring spool with voussoir and cover of wedge sliding fit, it is characterized in that: the sliding fit place of the two ends of described spring spool and described voussoir and cover of wedge is detachable inclined-plane, the middle part of described spring spool is provided with connecting pin, this connecting pin passes the corresponding set through hole of described cover of wedge, and the corresponding groove that arranges of described voussoir is stretched in its end, and described through hole and described groove leave the gap of moving for described connecting pin in suitable scope.
2. fluid pressure type according to claim 1 is expanded the wedge mechanism of axle, and it is characterized in that: the end that described cover of wedge and described voussoir offset is provided with packing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683640 CN203061915U (en) | 2012-12-12 | 2012-12-12 | Wedge mechanism of hydraulic type expanding mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683640 CN203061915U (en) | 2012-12-12 | 2012-12-12 | Wedge mechanism of hydraulic type expanding mandrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203061915U true CN203061915U (en) | 2013-07-17 |
Family
ID=48760741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220683640 Expired - Fee Related CN203061915U (en) | 2012-12-12 | 2012-12-12 | Wedge mechanism of hydraulic type expanding mandrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203061915U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551072A (en) * | 2014-12-12 | 2015-04-29 | 安徽白兔湖动力股份有限公司 | Dual-cone inclined wedge self-centering clamp |
-
2012
- 2012-12-12 CN CN 201220683640 patent/CN203061915U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551072A (en) * | 2014-12-12 | 2015-04-29 | 安徽白兔湖动力股份有限公司 | Dual-cone inclined wedge self-centering clamp |
| CN104551072B (en) * | 2014-12-12 | 2017-06-30 | 安徽白兔湖动力股份有限公司 | Bipyramid wedge self-centering fixture |
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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: 20130717 Termination date: 20131212 |