CN103008456A - Punch clamping device for petroleum drill stem joint - Google Patents
Punch clamping device for petroleum drill stem joint Download PDFInfo
- Publication number
- CN103008456A CN103008456A CN2012105089309A CN201210508930A CN103008456A CN 103008456 A CN103008456 A CN 103008456A CN 2012105089309 A CN2012105089309 A CN 2012105089309A CN 201210508930 A CN201210508930 A CN 201210508930A CN 103008456 A CN103008456 A CN 103008456A
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- China
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- cylinder body
- clamping device
- guide pin
- pin bushing
- piston rod
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Abstract
The invention relates to a punch clamping device for a punch replaceable press, in particular to a punch clamping device for a petroleum drill stem joint. The punch clamping device comprises a cylinder, wherein a cylinder bottom flange with an oil inlet in the middle is formed at the tail end of the cylinder body; a piston rod with a piston head at the front end is inserted in the cylinder body; a sealing guide sleeve is mounted at the back end of the piston rod through a nut; the sealing guide sleeve is closely matched with the inner wall of the cylinder body; a disc spring penetrates the middle part of the piston rod; one end of the disc spring is pushed against the inner wall of the cylinder body; and the other end of the disc spring is pushed against the end part of the sealing guide sleeve. The punch clamping device provided by the invention is used for controlling a base of a punch; and through injecting oil into the cylinder body or discharging oil from the cylinder body and compressing or releasing the disc spring, the piston rod extends out of the cylinder body or retracts into the cylinder body, so that the base of the punch is opened or closed to take off and clamp the punch; therefore, the punch clamping device for the petroleum drill stem joint, provided by the invention, has the advantages of high clamping speed, accurate positioning accuracy, high safety and stability in operation.
Description
Technical field
The present invention relates to a kind of drift clamping device of replaceable drift press, particularly relate to a kind of for joint of petroleum drill rod drift clamping device.
Background technology
Along with the development of society, the petroleum-based energy demand is increasing, and the demand of corresponding oil exploitation tool joint also just increases thereupon.Joint of petroleum drill rod in the past is in pressing process, and drift is at work because workpiece temperature is higher, and frequently large-tonnage extruding causes drift often to damage.It is more frequent that production line more renews drift, changes drift and wasted the plenty of time, and production efficiency is low, and the cost of changing drift is higher.The simultaneously damage of drift has affected the yield rate of workpiece greatly, has restricted the production efficiency of whole production line.
Summary of the invention
The present invention provides the clamping device that is used for the joint of petroleum drill rod drift that a kind of clamp speeds is fast, positioning accuracy is accurate, security performance is high, stable for solving the technical problem that exists in the known technology.
The present invention for the technical scheme that solves the technical problem that exists in the known technology and take is: a kind ofly comprise cylinder body for joint of petroleum drill rod drift clamping device, be provided with the middle part with the cylinder bottom flange of fuel feed hole at its end; Be inserted with front end with the piston rod of piston head in the inside of described cylinder body, the rear end of described piston rod is equipped with the sealing guide pin bushing by locknut, closely cooperates between the inwall of described sealing guide pin bushing and described cylinder body; Be equipped with the dish spring at the middle part of described piston rod, the end that the one end pushes up on the inwall that is located at described cylinder body, other end top is located at described sealing guide pin bushing.
Advantage of the present invention and good effect are: clamping device of the present invention is used for the base of control drift, by oiling or oil extraction in cylinder body, compression or release dish spring, piston rod is stretched out or retract cylinder in, thereby check card or close the drift base, realize taking off and clamping of drift, clamp speeds is fast, positioning accuracy is accurate, security performance is high, stable.
Preferably: be provided with internal thread part in the outer end of described fuel feed hole and send oil pipe line for connecting the outside.
Preferably: the sidewall at described sealing guide pin bushing is provided with annular groove, is provided with sealing ring in described groove.
Preferably: be provided with annular groove at described piston rod and the contacted sidewall of described sealing guide pin bushing, in described groove, be provided with sealing ring.
Preferably: between the inwall of described dish spring and described cylinder body, be provided with the first pad, between the end of described dish spring and described sealing guide pin bushing, be provided with the second pad.
Preferably: the sidewall at described piston head is provided with for the connecting hole that connects the drift base.
Preferably: be positioned at described piston rod on the part of described cylinder body outside and also be arranged with guide pin bushing, the edge of described guide pin bushing is provided with connecting hole.
Description of drawings
Fig. 1 is structural representation of the present invention and partial sectional view;
Among the figure: 1, piston rod; 2, guide pin bushing; 3, the first pad; 4, dish spring; 5, the second pad; 6, sealing guide pin bushing; 7, locknut; 8, cylinder body; 9, cylinder bottom flange.
The specific embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and cooperate accompanying drawing to be described in detail as follows:
See also Fig. 1, the present invention includes cylinder body 8, be provided with the middle part with the cylinder bottom flange 9 of fuel feed hole at its end, in order to connect outside oil feed line, be provided with internal thread part in the outer end of fuel feed hole, the connection end of oil feed line both can be connected on the cylinder bottom flange 9 like this.During actual installation, this clamping device is fixed on the side slide of press.
Be inserted with front end in the inside of cylinder body 8 with the piston rod 1 of piston head, the rear end of this piston rod 1 is equipped with sealing guide pin bushing 6 by locknut 7, closely cooperates between the inwall of sealing guide pin bushing 6 and cylinder body 8.In order to reach more excellent sealing effectiveness, be provided with annular groove at the sidewall that seals guide pin bushing 6, in groove, be provided with sealing ring; Be provided with annular groove at piston rod 1 and sealing guide pin bushing 6 contacted sidewalls, in this groove, be provided with sealing ring.
Be equipped with dish spring 4 at the middle part of piston rod 1 so that reseting elasticity to be provided, the end that the one end pushes up on the inwall that is located at cylinder body 8, other end top is located at sealing guide pin bushing 6.During actual installation, the first pad 3 and the second pad 5 are set respectively at the two ends of dish spring 4, wherein the first pad 3 is closely attached on the inwall of cylinder body 8, and the second pad 5 is closely attached on the end of sealing guide pin bushing 6.
Outer wall at piston head is provided with for the connecting hole that connects the drift base, after the drift base is connected, by stretching of control piston bar 1, realizes the control to the folding of drift base.
More steady for piston rod 1 is in operation, be positioned at piston rod 1 on the part of cylinder body 8 outsides and also be arranged with guide pin bushing 2, the edge of this guide pin bushing 2 is provided with connecting hole.Like this, when guide pin bushing 2 is installed on by connecting hole and connecting bolt on the frame of press, the operation of piston rod 1 will stably be limited on the axis direction of guide pin bushing 2 (axis direction that is piston rod 1 itself).
When needs are changed drift, oiling in the cylinder body 8, piston rod 1 is protruding, and the drift base is unclamped, and can extract afterwards drift and changes.Finish changing after the drift, the fluid pressure release is discharged, under the effect of the reseting elasticity of dish spring 4, piston rod 1 is retracted, and the drift base clamps drift again.
Claims (7)
1. one kind is used for joint of petroleum drill rod drift clamping device, it is characterized in that: comprise cylinder body (8), be provided with the middle part with the cylinder bottom flange (9) of fuel feed hole at its end; Be inserted with front end in the inside of described cylinder body (8) with the piston rod (1) of piston head, the rear end of described piston rod (1) is equipped with sealing guide pin bushing (6) by locknut (7), closely cooperates between the inwall of described sealing guide pin bushing (6) and described cylinder body (8); Be equipped with dish spring (4) at the middle part of described piston rod (1), the end that the one end pushes up on the inwall that is located at described cylinder body (8), other end top is located at described sealing guide pin bushing (6).
According to claimed in claim 1 for joint of petroleum drill rod drift clamping device, it is characterized in that: be provided with internal thread part in the outer end of described fuel feed hole and be used for connect the outside and send oil pipe line.
According to claimed in claim 1 for joint of petroleum drill rod drift clamping device, it is characterized in that: the sidewall at described sealing guide pin bushing (6) is provided with annular groove, is provided with sealing ring in described groove.
According to claimed in claim 1 for joint of petroleum drill rod drift clamping device, it is characterized in that: be provided with annular groove at described piston rod (1) and the contacted sidewall of described sealing guide pin bushing (6), in described groove, be provided with sealing ring.
According to claimed in claim 1 for joint of petroleum drill rod drift clamping device, it is characterized in that: between the inwall of described dish spring (4) and described cylinder body (8), be provided with the first pad (3), between the end of described dish spring (4) and described sealing guide pin bushing (6), be provided with the second pad (5).
According to claimed in claim 1 for joint of petroleum drill rod drift clamping device, it is characterized in that: be provided with for the connecting hole that connects the drift base at the sidewall of described piston head.
7. each is described for joint of petroleum drill rod drift clamping device according to claim 1 to 6, it is characterized in that: be positioned on the outside part of described cylinder body (8) at described piston rod (1) and also be arranged with guide pin bushing (2), the edge of described guide pin bushing (2) is provided with connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105089309A CN103008456A (en) | 2012-11-30 | 2012-11-30 | Punch clamping device for petroleum drill stem joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105089309A CN103008456A (en) | 2012-11-30 | 2012-11-30 | Punch clamping device for petroleum drill stem joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103008456A true CN103008456A (en) | 2013-04-03 |
Family
ID=47957871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105089309A Pending CN103008456A (en) | 2012-11-30 | 2012-11-30 | Punch clamping device for petroleum drill stem joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103008456A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4909493A (en) * | 1987-12-25 | 1990-03-20 | Kabushiki Kaisha Kosmek | Cylinder type hydraulic clamp |
| CN2726872Y (en) * | 2004-09-29 | 2005-09-21 | 天津市天锻压力机有限公司 | Auto-reset clamp device of hydrostatic press mobile pumping station |
| CN2820522Y (en) * | 2005-07-26 | 2006-09-27 | 天津市天锻压力机有限公司 | Digital control moving press head clamp device for hydraulic press |
| CN201333766Y (en) * | 2008-12-19 | 2009-10-28 | 富伟精机股份有限公司 | Structural improvement on die clamper |
| CN201931631U (en) * | 2010-11-30 | 2011-08-17 | 天津市天锻压力机有限公司 | Clamping device of six-axis numerical control frame type hydraulic press oil cylinder |
| CN202071390U (en) * | 2011-04-20 | 2011-12-14 | 徐州压力机械有限公司 | Clamping and lifting device for movable operation table of hydraulic machine |
-
2012
- 2012-11-30 CN CN2012105089309A patent/CN103008456A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4909493A (en) * | 1987-12-25 | 1990-03-20 | Kabushiki Kaisha Kosmek | Cylinder type hydraulic clamp |
| CN2726872Y (en) * | 2004-09-29 | 2005-09-21 | 天津市天锻压力机有限公司 | Auto-reset clamp device of hydrostatic press mobile pumping station |
| CN2820522Y (en) * | 2005-07-26 | 2006-09-27 | 天津市天锻压力机有限公司 | Digital control moving press head clamp device for hydraulic press |
| CN201333766Y (en) * | 2008-12-19 | 2009-10-28 | 富伟精机股份有限公司 | Structural improvement on die clamper |
| CN201931631U (en) * | 2010-11-30 | 2011-08-17 | 天津市天锻压力机有限公司 | Clamping device of six-axis numerical control frame type hydraulic press oil cylinder |
| CN202071390U (en) * | 2011-04-20 | 2011-12-14 | 徐州压力机械有限公司 | Clamping and lifting device for movable operation table of hydraulic machine |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130403 |