CN204954682U - From centering machine - Google Patents
From centering machine Download PDFInfo
- Publication number
- CN204954682U CN204954682U CN201520697863.9U CN201520697863U CN204954682U CN 204954682 U CN204954682 U CN 204954682U CN 201520697863 U CN201520697863 U CN 201520697863U CN 204954682 U CN204954682 U CN 204954682U
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- China
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- piston
- steel ball
- shank
- hole
- cover plate
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Abstract
The utility model discloses the shank top of locating pin is equipped with the external screw thread, can pass through screw locking on the frock base plate with the locating pin, this frock can make up the use, and can be independently used, air exhaust device passes through the extraction opening and bleeds to cylinder cavity (being located the part of piston bottom troops under one's command side), in piston below production negative pressure, the piston pushes down, round platform in the piston describes that it also moves down gradually to put the chamber, the round platform describes that the perisporium of putting the chamber extrudees the steel ball gradually, ball plung is to the internal contraction in the drive, because the atress of steel ball is even, so tighten up simultaneously, play the effect of location, the steel ball tightens up and makes the downward atress of locating pin, under the reaction force of base plate, play centering clamping's effect.
Description
Technical field
The utility model relates to self-centering mechanism, for the auxiliary positioning of clamping workpiece.
Background technology
Generally need in workpiece process to carry out Set and Positioning to workpiece, generally also can use alignment pin, also need to carry out centering clamping to alignment pin.
Utility model content
The purpose of this utility model is to provide a kind of self-centering mechanism, and it can to alignment pin centering clamping.
For achieving the above object, the technical solution of the utility model is a kind of self-centering mechanism of design, it is characterized in that, comprising: base, and to be located in base perpendicular puts piston, the alignment pin in the inserted base of bottom, and multiple steel ball;
Described alignment pin comprises: erect and put cylindrical shank, and be located at the positioning head of shank bottom; Described shank top is provided with external screw thread; Described positioning head is provided with the storage tank for installing steel ball, and this storage tank is arranged along shank circumference; Described steel ball is located in storage tank, and each steel ball is uniform along shank circumference, and steel ball protrudes from the notch of storage tank;
Described base comprises: the perpendicular of both ends open puts cylindrical tube up and down, is fixed on cylindrical shell bottom end opening place and the horizontal base plate of this bottom end opening closed, is fixed on cylinder top opening part and the horizontal cover plate of this top end opening closed; Described cover plate central is provided with the cover plate through hole for being set with shank, this cover plate through hole and the coaxial heart of cylindrical shell;
Described cylindrical shell is provided with the inner chamber vertically slided up and down for piston, this inner chamber and the coaxial heart of cylindrical shell; Described piston is located in cylinder lumen, and is slidably matched with the perisporium of cylinder lumen; Described piston and the coaxial heart of cylindrical shell;
Described internal piston is provided with the truncated cone-shaped accommodating cavity for accommodating positioning head, and described top land is provided with throughly with this accommodating cavity perpendicularly puts cylindrical piston through hole; Described truncated cone-shaped accommodating cavity and the coaxial heart of cylindrical tube; Described piston hole and the coaxial heart of cylindrical tube;
Described positioning head is placed in accommodating cavity, and the joint portion of described piston hole and accommodating cavity limits positioning head and upwards skids off; Described shank runs through piston hole, cover plate through hole from the bottom to top successively, and described shank top is positioned at above cover plate;
Described base plate center is provided with bleeding point, this bleeding point and cylinder lumen through.
Preferably, described bleeding point is connected with air extractor.
Preferably, the external diameter of each steel ball is identical.
Preferably, sealing ring is provided with between the perisporium of described piston and cylinder lumen.
Preferably, described sealing ring and the coaxial heart of cylindrical tube.
Advantage of the present utility model and beneficial effect are: provide a kind of self-centering mechanism, and it can to alignment pin centering clamping.
The shank top of alignment pin is provided with external screw thread, can by alignment pin by screw-threaded coupling on frock substrate, this frock can combinationally use, also can be used alone, air extractor is bled to cylinder lumen (being positioned at the part below piston base) by bleeding point, negative pressure is produced below piston, piston presses down, truncated cone-shaped accommodating cavity in piston also moves down gradually, the perisporium of truncated cone-shaped accommodating cavity extrudes steel ball gradually, positioning ball is driven inwardly to shrink, because the stressed of steel ball is uniform, so tighten up simultaneously, play the effect of location, steel ball tightens up and impels alignment pin to lower stress, under the reaction force of substrate, play the effect of centering clamping.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
The technical scheme that the utility model is specifically implemented is:
As shown in Figure 1, a kind of self-centering mechanism, is characterized in that, comprising: base 1, and to be located in base 1 perpendicular puts piston 2, the alignment pin 3 in bottom inserted base 1, and multiple steel ball 4;
Described alignment pin 3 comprises: erect and put cylindrical shank 31, and be located at the positioning head 32 of shank 31 bottom; Described shank 31 top is provided with external screw thread; Described positioning head 32 is provided with the storage tank for installing steel ball 4, and this storage tank is arranged along shank 31 circumference; Described steel ball 4 is located in storage tank, and each steel ball 4 is uniform along shank 31 circumference, and steel ball 4 protrudes from the notch of storage tank;
Described base 1 comprises: the perpendicular of both ends open puts cylindrical tube 11 up and down, is fixed on cylindrical shell 11 bottom end opening place and the horizontal base plate 12 of this bottom end opening closed, is fixed on cylindrical shell 11 top end opening place and the horizontal cover plate 13 of this top end opening closed; Described cover plate 13 center is provided with the cover plate through hole 131 for being set with shank 31, this cover plate through hole 131 and the coaxial heart of cylindrical shell 11;
Described cylindrical shell 11 is provided with the inner chamber vertically slided up and down for piston 2, this inner chamber and the coaxial heart of cylindrical shell 11; Described piston 2 is located in cylindrical shell 11 inner chamber, and is slidably matched with the perisporium of cylindrical shell 11 inner chamber; Described piston 2 and the coaxial heart of cylindrical shell 11;
Described piston 2 inside is provided with the truncated cone-shaped accommodating cavity for accommodating positioning head 32, and described piston 2 top is provided with throughly with this accommodating cavity perpendicularly puts cylindrical piston 2 through hole; Described truncated cone-shaped accommodating cavity and the coaxial heart of cylindrical tube 11; Described piston 2 through hole and the coaxial heart of cylindrical tube 11;
Described positioning head 32 is placed in accommodating cavity, and the joint portion of described piston 2 through hole and accommodating cavity limits positioning head 32 and upwards skids off; Described shank 31 runs through piston 2 through hole, cover plate through hole 131 from the bottom to top successively, and described shank 31 top is positioned at above cover plate 13;
Described base plate 12 center is provided with bleeding point 121, and this bleeding point 121 is through with cylindrical shell 11 inner chamber.
Described bleeding point 121 is connected with air extractor.
The external diameter of each steel ball 4 is identical.
Sealing ring 21 is provided with between the perisporium of described piston 2 and cylindrical shell 11 inner chamber.
Described sealing ring 21 and the coaxial heart of cylindrical tube 11.
Shank 31 top of alignment pin 3 is provided with external screw thread, can by alignment pin 3 by screw-threaded coupling on frock substrate, this frock can combinationally use, also can be used alone, air extractor is bled by bleeding point 121 pairs of cylindrical shell 11 inner chambers (being positioned at the part of piston 2 bottom part down), negative pressure is produced below piston 2, piston 2 presses down, truncated cone-shaped accommodating cavity in piston 2 also moves down gradually, the perisporium of truncated cone-shaped accommodating cavity extrudes steel ball 4 gradually, positioning ball 4 is driven inwardly to shrink, because the stressed of steel ball 4 is uniform, so tighten up simultaneously, play the effect of location, steel ball 4 tightens up and impels alignment pin 3 to lower stress, under the reaction force of substrate, play the effect of centering clamping.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. self-centering mechanism, is characterized in that, comprising: base, and to be located in base perpendicular puts piston, the alignment pin in the inserted base of bottom, and multiple steel ball;
Described alignment pin comprises: erect and put cylindrical shank, and be located at the positioning head of shank bottom; Described shank top is provided with external screw thread; Described positioning head is provided with the storage tank for installing steel ball, and this storage tank is arranged along shank circumference; Described steel ball is located in storage tank, and each steel ball is uniform along shank circumference, and steel ball protrudes from the notch of storage tank;
Described base comprises: the perpendicular of both ends open puts cylindrical tube up and down, is fixed on cylindrical shell bottom end opening place and the horizontal base plate of this bottom end opening closed, is fixed on cylinder top opening part and the horizontal cover plate of this top end opening closed; Described cover plate central is provided with the cover plate through hole for being set with shank, this cover plate through hole and the coaxial heart of cylindrical shell;
Described cylindrical shell is provided with the inner chamber vertically slided up and down for piston, this inner chamber and the coaxial heart of cylindrical shell; Described piston is located in cylinder lumen, and is slidably matched with the perisporium of cylinder lumen; Described piston and the coaxial heart of cylindrical shell;
Described internal piston is provided with the truncated cone-shaped accommodating cavity for accommodating positioning head, and described top land is provided with throughly with this accommodating cavity perpendicularly puts cylindrical piston through hole; Described truncated cone-shaped accommodating cavity and the coaxial heart of cylindrical tube; Described piston hole and the coaxial heart of cylindrical tube;
Described positioning head is placed in accommodating cavity, and the joint portion of described piston hole and accommodating cavity limits positioning head and upwards skids off; Described shank runs through piston hole, cover plate through hole from the bottom to top successively, and described shank top is positioned at above cover plate;
Described base plate center is provided with bleeding point, this bleeding point and cylinder lumen through.
2. self-centering mechanism according to claim 1, is characterized in that, described bleeding point is connected with air extractor.
3. self-centering mechanism according to claim 1, is characterized in that, the external diameter of each steel ball is identical.
4. self-centering mechanism according to claim 1, is characterized in that, is provided with sealing ring between the perisporium of described piston and cylinder lumen.
5. self-centering mechanism according to claim 1, is characterized in that, described sealing ring and the coaxial heart of cylindrical tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520697863.9U CN204954682U (en) | 2015-09-10 | 2015-09-10 | From centering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520697863.9U CN204954682U (en) | 2015-09-10 | 2015-09-10 | From centering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204954682U true CN204954682U (en) | 2016-01-13 |
Family
ID=55049779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520697863.9U Active CN204954682U (en) | 2015-09-10 | 2015-09-10 | From centering machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204954682U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107435674A (en) * | 2016-05-25 | 2017-12-05 | 上海共联通信信息发展有限公司 | A kind of circular fastener being used in medical fluid pumping system |
| CN108942324A (en) * | 2017-05-22 | 2018-12-07 | 上海顶欣机电设备有限公司 | A kind of quick-clamping system |
| CN110253469A (en) * | 2019-06-25 | 2019-09-20 | 深圳市速联技术有限公司 | A kind of steel loading ball auxiliary device |
-
2015
- 2015-09-10 CN CN201520697863.9U patent/CN204954682U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107435674A (en) * | 2016-05-25 | 2017-12-05 | 上海共联通信信息发展有限公司 | A kind of circular fastener being used in medical fluid pumping system |
| CN108942324A (en) * | 2017-05-22 | 2018-12-07 | 上海顶欣机电设备有限公司 | A kind of quick-clamping system |
| CN110253469A (en) * | 2019-06-25 | 2019-09-20 | 深圳市速联技术有限公司 | A kind of steel loading ball auxiliary device |
| CN110253469B (en) * | 2019-06-25 | 2020-12-22 | 深圳市速联技术有限公司 | Auxiliary device for loading steel balls |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |