CN101514947A - Horizontal sliding type hydraulic clamp piston anti-rotating frame - Google Patents
Horizontal sliding type hydraulic clamp piston anti-rotating frame Download PDFInfo
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- CN101514947A CN101514947A CNA2008100338120A CN200810033812A CN101514947A CN 101514947 A CN101514947 A CN 101514947A CN A2008100338120 A CNA2008100338120 A CN A2008100338120A CN 200810033812 A CN200810033812 A CN 200810033812A CN 101514947 A CN101514947 A CN 101514947A
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- piston
- piston rod
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- jaw
- horizontal sliding
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Abstract
The invention relates to a horizontal sliding type hydraulic clamp piston anti-rotating frame, which comprises a piston and a piston rod sleeved in a fluid cylinder body, an axis of the piston rod is deviated from the axis of the piston, the outside of the piston is sealed by an end closure, one end of the piston rod is connected with a jaw through a jaw fastening screw, while the other end is connected with the piston through a piston fastening screw. The axis of the piston rod is deviated from the axis of the piston mutually with an eccentricity value L so as to prevent the piston and the piston rod from rotating along any axle wire of the piston and the piston rod. The piston and the piston rod only can do linear motion in the fluid cylinder body, which guarantees the normal holding of the jaw connected with a connecting rod to a sample.
Description
Technical field
The present invention relates to horizontal sliding type hydraulic clamp piston anti-rotating frame, specifically be applied to the flat push type hydraulic tensioning anchor clamps that Material Testing Machine is joined, belong to the testing of materials field.
Background technology
Material Testing Machine is one of investigation of materials field experimental facilities that the various mechanical properties of material are tested, horizontal sliding hydraulic clamp is up-to-date one of anchor clamps that Material Testing Machine is joined, mainly fit on the Material Testing Machine of load more than or equal to 100kN, be applicable to the clamping of samples such as sheet material, bar, tubing, having dress materialses conveniently, jaw quantity is few, and clamping range is big, and changes jaw characteristics easily.The jaw of common horizontal sliding hydraulic clamp assembling is divided into flat pliers mouth and two kinds of patterns of V-type jaw.Wherein the structure of horizontal sliding hydraulic clamp as shown in Figure 2, wherein piston portion, the end face of piston rod part in hydraulic cylinder are circle, when the axis of the two coincides, can rotate in the two process that is moving under the effect of hydraulic oil, if jaw is the flat pliers mouth, then this rotation can not exert an influence to the clamping of sample; When clamping bar sample, generally all can use 3 clampings of V-type jaw, Fig. 3 is the vertical view of the sample of traditional V-type jaw clamping bar, because the V-type groove of V-type jaw 3 has directivity, V-type groove after the installation is consistent with draw direction, if piston portion, piston rod part produces rotation in the process that moves, the V-type groove can depart from draw direction, cause the V-type jaw can't realize normal clamping to sample 5, the method that solves piston and piston rod rotation in the known technology has two kinds:
First kind of way: adopt the tail end guide frame, as shown in Figure 4, the guide holder 6 of quadrangular shape is installed on end cap 1, be provided with seat hole with the guide holder form fit at the tail end of piston portion, because the effect of guide holder 6 makes piston, piston rod can not produce rotation, but this tail end guidance mode has increased guide holder, and will process piston portion, so this mode complex structure, the process and assemble difficulty is big.
Second kind of way: as shown in Figure 5 that the processing of piston and piston rod is as a whole, i.e. piston assembly, wherein piston portion and piston rod partly adopt eccentric structure, and promptly depart from mutually in the axle center of piston portion and piston rod axle center partly.Adapt therewith, place the axis in two cylinder holes of piston portion, piston rod part and also depart from mutually, so arbitrary axis rotation that piston assembly can not be in the two, the to-and-fro movement that can only take the air line reaches the rotation when preventing the piston assembly motion.Because there is certain offset at the piston portion and piston rod part two centers of this method, and offset numerical value is suitable with the offset numerical value in the two cylinder holes of placing piston portion, piston rod part, and the deviation of two offset numerical value should be less than 0.02mm.Therefore not only make the piston assembly requirement on machining accuracy very high, and assembling is also relatively more difficult.
Summary of the invention
Problem to be solved by this invention is: provide a kind of horizontal sliding type hydraulic clamp piston anti-rotating frame simple, easy to assembly of processing, to remedy the deficiency that prior art solves piston rotation problem.
The technical scheme that the present invention solves above technical matters is as follows:
A kind of horizontal sliding type hydraulic clamp piston anti-rotating frame, comprise the piston and the piston rod that are sleeved in the hydraulic cylinder, the axis of described piston rod and the axis runout of piston one eccentricity value, the piston outside is by end cap seal, piston rod one end is connected by the jaw trip bolt with jaw, it is characterized in that: the other end of described piston rod is connected by the piston trip bolt with piston;
Described eccentricity value is 6mm---12mm;
It is on the circumference of central shaft that described piston trip bolt is symmetrically distributed in the piston rod axis.
The invention has the beneficial effects as follows:
1, the axis of the axis of piston rod and piston departs from mutually, has prevented the rotation of piston.
2, piston and piston rod are processed as the branch body structure, difficulty of processing reduces greatly, does not also need the tail end guiding, has reduced the requirement to machining precision.
3, can the offset of piston and piston rod be set according to the offset numerical value in the two cylinder holes of placing piston, piston rod, divide body structure to make things convenient for assembling.
Description of drawings
The present invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is a flat push type hydraulic tensioning clamp piston anti-rotation structure synoptic diagram of the present invention;
Structural representation when Fig. 2 is traditional horizontal sliding hydraulic clamp clamping bar sample;
Fig. 3 is the vertical view of traditional V-type jaw clamping sample;
Fig. 4 is first kind of existing piston rotational structure synoptic diagram that prevents;
Fig. 5 is second kind of existing piston rotational structure synoptic diagram that prevents.
Among the figure: 1-end cap, 2-piston assembly, 21-piston portion, 22-piston rod part, 3-V type jaw, the 4-clamp body, 5-sample, 6-guide holder, 7-jaw, 8-piston, the 9-piston rod, 10-tubing interface, 11-jaw trip bolt, 12-piston trip bolt, L-eccentricity value
Embodiment
As shown in Figure 1: a kind of horizontal sliding type hydraulic clamp piston anti-rotating frame, comprise the piston 8 and the piston rod 9 that are sleeved in the hydraulic cylinder, the axis runout of piston rod 9 is in the axis of piston 8, piston 8 outsides are by end cap 1 sealing, piston rod 9 one ends are connected by jaw trip bolt 11 with jaw 7, and the other end of described piston rod 9 is connected by piston trip bolt 12 with piston 8.
Because the axis of piston rod 9 and the axis of piston 8 depart from mutually, the scope of eccentricity value L is 6mm---12mm; Prevented piston 8, piston rod 9 along its arbitrary axis rotation, piston 8 and piston rod 9 can only be done rectilinear motion in hydraulic cylinder, have guaranteed the normal clamping of 7 pairs of samples of jaw of being connected with connecting link 9.
It is on the circumference of central shaft that described piston trip bolt 12 is symmetrically distributed in piston rod 9 axis.4-8 piston trip bolt is installed generally speaking, can be guaranteed the even distribution of acting force between piston 8 and the piston rod 9 like this.
The structure that adopts piston 8 and piston rod 9 axis to depart from mutually, prevented to rotate when piston 8 from moving, in addition, piston 8 and piston rod 9 are processed the back respectively to be connected with piston trip bolt 12, make piston 8 and piston rod 9 than being easier to processing, reduced the eccentric dimensional requirement of placing piston 8 and 9 two cylinder ports of piston rod on the clamp body 4.
Claims (3)
1, a kind of horizontal sliding type hydraulic clamp piston anti-rotating frame, comprise the piston (8) and the piston rod (9) that are sleeved in clamp body (4) hydraulic cylinder, the axis of the axis of described piston rod (9) and piston (8) departs from an eccentricity value L mutually, piston (8) outside is sealed by end cap (1), piston rod (9) one ends are connected by jaw trip bolt (11) with jaw (7), it is characterized in that the other end of described piston rod (9) is connected by piston trip bolt (12) with piston (8).
2, a kind of horizontal sliding type hydraulic clamp piston anti-rotating frame according to claim 1 is characterized in that: described eccentricity value L scope is 6mm---12mm.
3, a kind of horizontal sliding type hydraulic clamp piston anti-rotating frame according to claim 1 is characterized in that: it is on the circumference of central shaft that described piston trip bolt (12) is symmetrically distributed in the piston rod axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100338120A CN101514947B (en) | 2008-02-22 | 2008-02-22 | Horizontal sliding type hydraulic clamp piston anti-rotating frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100338120A CN101514947B (en) | 2008-02-22 | 2008-02-22 | Horizontal sliding type hydraulic clamp piston anti-rotating frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101514947A true CN101514947A (en) | 2009-08-26 |
| CN101514947B CN101514947B (en) | 2010-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100338120A Active CN101514947B (en) | 2008-02-22 | 2008-02-22 | Horizontal sliding type hydraulic clamp piston anti-rotating frame |
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| CN (1) | CN101514947B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539231A (en) * | 2011-12-27 | 2012-07-04 | 济南试金集团有限公司 | Clamp body of testing machine |
| CN102768150A (en) * | 2012-08-01 | 2012-11-07 | 长春新试验机有限责任公司 | Electro-hydraulic flat-pushing clamping device |
| CN102966625A (en) * | 2012-06-20 | 2013-03-13 | 苏州世力源科技有限公司 | Anti-rotation structure and method for hydraulic cylinder |
| CN105092369A (en) * | 2015-09-11 | 2015-11-25 | 湖州华科建设工程质量检测有限公司 | Chuck for tensile testing of steel plate |
| CN105092366A (en) * | 2015-09-11 | 2015-11-25 | 湖州华科建设工程质量检测有限公司 | Stretching mechanism with buffering protection device and used for stretching testing of steel plate |
| CN105092370A (en) * | 2015-09-11 | 2015-11-25 | 湖州华科建设工程质量检测有限公司 | Double-clamp chuck for steel plate stretching detection |
| CN105115816A (en) * | 2015-09-11 | 2015-12-02 | 湖州华科建设工程质量检测有限公司 | Stretching mechanism for steel plate stretching detection |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3682066D1 (en) * | 1986-07-12 | 1991-11-21 | Schenck Ag Carl | PRESSURE-DRIVEN WEDGE CLAMP FOR MATERIAL TESTING DEVICES. |
| CN2194508Y (en) * | 1994-05-05 | 1995-04-12 | 刘宪武 | Hydaulic clamp device |
| CN2572392Y (en) * | 2002-10-09 | 2003-09-10 | 齐齐哈尔华工机床制造有限公司 | Hydraulic clamp device for board sample |
-
2008
- 2008-02-22 CN CN2008100338120A patent/CN101514947B/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539231A (en) * | 2011-12-27 | 2012-07-04 | 济南试金集团有限公司 | Clamp body of testing machine |
| CN102966625A (en) * | 2012-06-20 | 2013-03-13 | 苏州世力源科技有限公司 | Anti-rotation structure and method for hydraulic cylinder |
| CN102768150A (en) * | 2012-08-01 | 2012-11-07 | 长春新试验机有限责任公司 | Electro-hydraulic flat-pushing clamping device |
| CN105092369A (en) * | 2015-09-11 | 2015-11-25 | 湖州华科建设工程质量检测有限公司 | Chuck for tensile testing of steel plate |
| CN105092366A (en) * | 2015-09-11 | 2015-11-25 | 湖州华科建设工程质量检测有限公司 | Stretching mechanism with buffering protection device and used for stretching testing of steel plate |
| CN105092370A (en) * | 2015-09-11 | 2015-11-25 | 湖州华科建设工程质量检测有限公司 | Double-clamp chuck for steel plate stretching detection |
| CN105115816A (en) * | 2015-09-11 | 2015-12-02 | 湖州华科建设工程质量检测有限公司 | Stretching mechanism for steel plate stretching detection |
| CN105092369B (en) * | 2015-09-11 | 2017-09-29 | 海门黄海创业园服务有限公司 | A kind of steel plate stretching detection chuck |
| CN105092370B (en) * | 2015-09-11 | 2017-10-17 | 江苏火电电力设备制造有限公司 | A kind of steel plate stretching detection pair clamp grippers |
| CN105092366B (en) * | 2015-09-11 | 2017-11-21 | 骆云苹 | A kind of steel plate stretching detection drawing mechanism with buffer protection device |
| CN105115816B (en) * | 2015-09-11 | 2017-12-22 | 亳州沃野知识产权服务有限公司 | A kind of steel plate stretching detection drawing mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101514947B (en) | 2010-12-22 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI HUALONG TEST INSTRUMENTS CORPORATION Free format text: FORMER NAME: HUALONG DETECTOR CO., LTD., SHANGHAI |
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| CP03 | Change of name, title or address |
Address after: Chuansha Pudong New Area Town, Shanghai City Sichuan Road No. 389 201202 Patentee after: Shanghai Hualong Test Instruments Co., Ltd. Address before: 201202 Shanghai city Pudong New Area Sichuan Road No. 389 Patentee before: Hualong Detector Co., Ltd., Shanghai |
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| CP01 | Change in the name or title of a patent holder |
Address after: 201202 389 Chuan Wang Road, Chuansha Town, Pudong New Area, Shanghai Patentee after: Hualong Detector Co., Ltd., Shanghai Address before: 201202 389 Chuan Wang Road, Chuansha Town, Pudong New Area, Shanghai Patentee before: Shanghai Hualong Test Instruments Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |