CN201277216Y - Internal-guiding grip oil cylinder - Google Patents
Internal-guiding grip oil cylinder Download PDFInfo
- Publication number
- CN201277216Y CN201277216Y CNU2008201426887U CN200820142688U CN201277216Y CN 201277216 Y CN201277216 Y CN 201277216Y CN U2008201426887 U CNU2008201426887 U CN U2008201426887U CN 200820142688 U CN200820142688 U CN 200820142688U CN 201277216 Y CN201277216 Y CN 201277216Y
- Authority
- CN
- China
- Prior art keywords
- guide
- piston rod
- guide sleeve
- cylinder
- rod
- 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
An inner guide clamping cylinder comprises a guide sleeve and a cylinder body, which are movably matched, wherein a piston rod is assembled in the guide sleeve, a guide hole is arranged on the back end of the piston rod, a guide key is arranged in the guide hole, a guide rod is fixed on the back end cap of the cylinder body, and a key groove matching with the guide key is arranged on the guide rod. The clamping cylinder is characterized in that the front end of the guide sleeve is provided with a dust-proof ring and a lubricating oil cup. The depth of the guide hole is larger at least one third than the stroke of the cylinder. The clamping cylinder has reasonable structure design, and the arrangement of the guide key in the guide hole and the key groove on the guide rod can prevent the rotation of the piston rod when in work, and the grinding of scrap iron can be prevented owing to arranging the dust-proof ring and the lubricating oil cup on the front end of the guide sleeve, therefore, the service life is greatly prolonged, and economic expenditures for maintenance, and element replacement and the like are saved.
Description
Technical field
The utility model relates to a kind of interior guiding clamping cylinder, belongs to oil drilling tools disassembly-and-assembly machine clamp technology field.
Background technique
As everyone knows, the oil drilling tools disassembly-and-assembly machine has two clamping clips, and one is to fix to clamp, and another is tight towards clip, and it clamps principle and is based on that the action of piston rod in oil cylinder realize.Generally stud with anti abrasive dental lamina at the cylinder head top of clamping cylinder, the working position of dental lamina is parallel to the axis of workpiece, dental lamina be subjected to the axis of force direction perpendicular to workpiece, the piston rod of clamping cylinder can not rotate when stretching out and return, otherwise uneven or clamp the back workpiece to the clamping force of workpiece not at rotating center, also can cause damage to dental lamina.What at present traditional drilling tool disassembly-and-assembly machine clamping cylinder adopted is outer guiding oil cylinder, sees accompanying drawing 1.The side of piston rod front end targeting part studs with feather key, in the guiding trepanning keyway is arranged, and piston rod moves along the guiding keyway during work, guarantees that the working position of dental lamina is parallel to the axis of workpiece.This structure Design, can prevent that piston rod from rotating, but when work, especially when long time continuous working, clamping clip can fall down some iron filings unavoidably, because of outer guiding clamping cylinder can not be installed protective measures, the clamping cylinder of clamping clip bottom, guide sleeve and piston rod front end targeting part be often by the iron filings loss, when serious even can not work.
Summary of the invention
The utility model has overcome above-mentioned the deficiencies in the prior art, and its purpose is to provide a kind of interior guiding clamping cylinder.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions.
Guiding clamping cylinder in a kind of, comprise movable guide sleeve and the cylinder body that cooperates, be equipped with piston rod in the guide sleeve, the piston rod rear end is provided with a pilot hole, be provided with feather key in the pilot hole, be fixed with guide rod on the rear end cover of cylinder body, guide rod is provided with the keyway that matches with feather key, it is characterized in that the front end of guide sleeve is provided with dust ring and lubrication ring.
Described dust ring can prevent that iron filings and dust and other impurities from entering in the guide sleeve, and described lubrication ring can play lubrication for guide sleeve and piston rod, prolongs its working life.
The stroke big at least 1/3 of the depth ratio oil cylinder of described pilot hole.
The interior guiding clamping cylinder that the utility model is introduced, reasonable in design, the setting of keyway on feather key and the guide rod in the pilot hole, can prevent that piston rod from rotating when work, and because the guide sleeve front end is provided with dust ring and lubrication ring, can prevent the iron filings loss, prolong its working life greatly, save multinomial economic expenditures such as maintenance, replacing component.
Description of drawings
Fig. 1 is the lead structural representation of clamping cylinder of the utility model background technique at home and abroad;
Fig. 2 is this practical structural representation.
Symbol description among the figure: 1, piston rod; 2, dust ring; 3, lubrication ring; 4, guide sleeve; 5, guide rod; 6, feather key; 7, cylinder body; 8, rear end cover.
Embodiment
Introduce the utility model specific embodiment in detail below in conjunction with accompanying drawing.
As shown in Figure 2, the utility model comprises movable guide sleeve 4 and the cylinder body 7 that cooperates, and is equipped with piston rod 1 in the guide sleeve 4, piston rod 1 rear end is provided with a pilot hole, its depth ratio oil cylinder stroke is big at least by 1/3, is provided with feather key 6 in the pilot hole, the parallel axes of its direction and pilot hole; Be fixed with guide rod 5 on the rear end cover of described cylinder body 7, guide rod 5 is provided with the keyway that matches with feather key 6, is characterized in, the front end of guide sleeve 4 is provided with dust ring 2 and lubrication ring 3.
During assembling, in the corresponding groove of earlier each oil sealing being packed into, pack into piston rod 1 in the guide sleeve 4 after, again guide rod 5 and piston rod 1 are assembled together, guide sleeve 4 is screwed in cylinder bodies 7 after, again that guide rod 5 is fixing with rear end cover 8.
Claims (2)
1, a kind of interior guiding clamping cylinder, comprise movable guide sleeve [4] and the cylinder body [7] that cooperates, be equipped with piston rod [1] in the guide sleeve [4], piston rod [1] rear end is provided with a pilot hole, be provided with feather key [6] in the pilot hole, be fixed with guide rod [5] on the rear end cover of cylinder body [7], guide rod [5] is provided with the keyway that cooperates with feather key [6], it is characterized in that guide sleeve [4] front end is provided with dust ring [2] and lubrication ring [3].
2, interior guiding clamping cylinder according to claim 1 is characterized in that the stroke big at least 1/3 of the depth ratio oil cylinder of described pilot hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201426887U CN201277216Y (en) | 2008-10-24 | 2008-10-24 | Internal-guiding grip oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201426887U CN201277216Y (en) | 2008-10-24 | 2008-10-24 | Internal-guiding grip oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201277216Y true CN201277216Y (en) | 2009-07-22 |
Family
ID=40894802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201426887U Expired - Fee Related CN201277216Y (en) | 2008-10-24 | 2008-10-24 | Internal-guiding grip oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201277216Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102602021A (en) * | 2012-01-06 | 2012-07-25 | 肇庆市志成气动有限公司 | Pneumatic punching machine |
| CN103939417A (en) * | 2014-04-25 | 2014-07-23 | 徐州徐工液压件有限公司 | Anti-rotation structure of hydraulic cylinder |
| CN104148961A (en) * | 2014-09-10 | 2014-11-19 | 上海中船三井造船柴油机有限公司 | Workpiece supporting device capable of eliminating clamping clearance |
| CN106194886A (en) * | 2016-08-31 | 2016-12-07 | 浙江路得坦摩汽车部件股份有限公司 | A kind of piston rod seal |
-
2008
- 2008-10-24 CN CNU2008201426887U patent/CN201277216Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102602021A (en) * | 2012-01-06 | 2012-07-25 | 肇庆市志成气动有限公司 | Pneumatic punching machine |
| CN103939417A (en) * | 2014-04-25 | 2014-07-23 | 徐州徐工液压件有限公司 | Anti-rotation structure of hydraulic cylinder |
| CN104148961A (en) * | 2014-09-10 | 2014-11-19 | 上海中船三井造船柴油机有限公司 | Workpiece supporting device capable of eliminating clamping clearance |
| CN106194886A (en) * | 2016-08-31 | 2016-12-07 | 浙江路得坦摩汽车部件股份有限公司 | A kind of piston rod seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Tianjin General Principle Machinery Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20091124 |