CN104624714A - Super-short oil tube pup joint three-cylinder opposite vertex compressing and molding equipment and using method thereof - Google Patents
Super-short oil tube pup joint three-cylinder opposite vertex compressing and molding equipment and using method thereof Download PDFInfo
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- CN104624714A CN104624714A CN201510060175.6A CN201510060175A CN104624714A CN 104624714 A CN104624714 A CN 104624714A CN 201510060175 A CN201510060175 A CN 201510060175A CN 104624714 A CN104624714 A CN 104624714A
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- oil cylinder
- pipe
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- core rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses super-short oil tube pup joint three-cylinder opposite vertex compressing and molding equipment and a using method thereof. The super-short oil tube pup joint three-cylinder opposite vertex compressing and molding equipment comprises an engine base, a lower mold body, an upper mold body, a right oil cylinder, a right forming mold core, a longitudinal oil cylinder, a longitudinal piston rod, a left oil cylinder, a left forming mold core and a hydraulic station, wherein the lower mold body, the right oil cylinder and the left oil cylinder are all fixed on the engine base, and the right oil cylinder and the left oil cylinder are respectively coaxially and symmetrically distributed at two sides of the lower mold body; the longitudinal oil cylinder is fixed on the engine base, and is arranged above the upper mold body; the lower end of the longitudinal oil cylinder is fixedly connected with gravity center of the upper mold body; the right forming mold core and the left forming mold core are butted to form a forming mold section which is the same with the inner cavity of the oil tube pop joint in cross section shape; the right oil cylinder, the longitudinal oil cylinder and the left oil cylinder are all connected with a hydraulic station via a high-pressure oil tube. A blank tube can be subjected to bidirectional and synchronous push and press molding so as to obtain a super-short upsetting oil tube pup joint light tube. The super-short oil tube pup joint three-cylinder opposite vertex compressing and molding equipment is reasonable in structural design, is high in compression efficiency, is good in quality stability, and the obtained super-short upsetting oil tube pup joint light tube is compact in texture structure.
Description
Technical field:
The present invention relates to the end upsetting field that a kind of length is less than the ultrashort heavy wall tubing pipe nipple of 1 meter, particularly relate to the end upsetting former of ultrashort tubing nipple.
Background technology:
Along with oil exploitation constantly expands, oil well pipe uses and also constantly strengthens thereupon, and oil well pipe pipe nipple is as the part in oil well pipe, and the consumption of oil well pipe pipe nipple also increases thereupon.Oil well pipe thickening pipe nipple because of length short, especially length is less than the oil well pipe pipe nipple of following 1m, adopts conventional oil pipe process for upsetting to process, causes retrogressing to thicken because the clamp segment of oil pipe is too short.Current most steel pipe's production producer all adopts thick-walled pipe machine cut processing molding method to produce, but can by the impact to the even property of wall unevenness of thick-walled pipe with cutting technology, be easy to cause the local wall thickness of pipe nipple not up to standard, need the whole turning of unnecessary wall thickness in the middle part of by body to fall with machine cut processing simultaneously, not only cause the waste of metal material, and machining is costly, time-consuming, economy is very poor, and the qualification rate of product is low.Many steel pipe's production producers are reluctant to accept tubing nipple supply contract, but oil well pipe is often packed and is submitted a tender to manufacturer by client together with tubing nipple, whole oil pipe contract order success rate will be affected as produced the production not accepting tubing nipple, therefore, steel pipe's production manufacturer can only carry out the production of tubing nipple by regardless of expense, can only use thick-walled pipe turnery processing, the production of the tubing nipple of ultrashort thickening is the technical barrier of common concern in the industry.
Applicant is through constantly research and test, successfully test out a kind of end upsetting forming method of ultrashort tubing nipple, the method adopts makes base pipe with the middle body same specification body of tubing nipple, the external diameter of base pipe is all identical with the middle body of tubing nipple with internal diameter, by equi-volume process determination base length of tube, base pipe is heated to austenitic state, carries out with ultrashort tubing nipple compression molding device that bi-directional synchronization top is molded obtains ultrashort heavy wall tubing pipe nipple light pipe.
Its molding die process technique flow process:
Blanking---heating---material pipe---the ultrashort heavy wall tubing pipe nipple light pipe of matched moulds---two-way top is molded---that enters mould
Concrete pressing step is given:
The first step, the blanking of thick stock pipe to be added: calculate base length of tube according to the equal-volume method of forming and carry out blanking, the external diameter of base pipe is identical with the middle body of tubing nipple to be processed with internal diameter;
Second step, the heating of base pipe: the base pipe homogeneous heating first step obtained is to austenitic state;
3rd step, base pipe enters mould: start ultrashort tubing nipple three cylinder to top compression molding device, the piston rod of right oil cylinder, Vertical Cylinders and left oil cylinder is made all to be in contraction state, wherein, upper die body moves with on vertical piston bar, be separated with lower mold body, the die cavity of lower mold body is exposed, the pipe to be processed after heating is put into the die cavity of lower mold body;
4th step, matched moulds: start the Vertical Cylinders of ultrashort tubing nipple three cylinder to top compression molding device and move down, make upper die body and lower mold body pressing matched moulds, realize the matched moulds of upper die body and lower mold body and treat and process pipe and clamp, clamping position is the middle body portion of tubing nipple to be processed;
5th step, two-way top is molded, obtain ultrashort heavy wall tubing pipe nipple light pipe: the right oil cylinder of synchronous averaging and left oil cylinder, their piston synchronous is stretched, driving right shaping core rod and left shaping core rod synchronously to treat processing pipe, to carry out equal-volume compressing, after compressing, the piston synchronous of right oil cylinder and left oil cylinder is synchronously made to shrink, right shaping core rod and left shaping core rod is driven synchronously to transfer to from heavy wall tubing pipe nipple light pipe, restart Vertical Cylinders to make vertical piston bar drive upper die body moves the demoulding, take out ultrashort heavy wall tubing pipe nipple light pipe.
In this briquetting process, ultrashort tubing nipple three cylinder is the key implementing the method to top compression molding device.
Summary of the invention:
The object of this invention is to provide a kind of ultrashort tubing nipple three cylinder to top compression molding device and using method thereof.
The technical scheme that the present invention takes is as follows:
A kind of ultrashort tubing nipple three cylinder is to top compression molding device, it is characterized in that: comprise support, lower mold body, upper die body, right oil cylinder, right shaping core rod, Vertical Cylinders, vertical piston bar, left oil cylinder, left shaping core rod and Hydraulic Station, lower mold body, right oil cylinder, left oil cylinder is all fixed on support, and right oil cylinder and left oil cylinder are distributed in the both sides of lower mold body respectively coaxial-symmetrical, the piston of right shaping core rod and right oil cylinder 4 is direct-connected, the piston of left shaping core rod and left oil cylinder is direct-connected, Vertical Cylinders to be fixed on support and to be arranged on the top of upper die body, the lower end of vertical piston bar is fixedly connected with the center of gravity of upper die body, right shaping core rod is identical with the cross sectional shape of tubing nipple inner chamber with the shaping mould section after left shaping core rod docking, right oil cylinder, Vertical Cylinders, left oil cylinder is all connected with Hydraulic Station by high-pressure oil pipe.
Its using method is as follows:
Before base pipe enters mould, right oil cylinder, the piston rod of Vertical Cylinders and left oil cylinder is all in contraction state, wherein, upper die body moves with on vertical piston bar, be separated with lower mold body, the die cavity of lower mold body is exposed, after the pipe to be processed after heating puts into the die cavity of lower mold body, first start Vertical Cylinders, vertical piston bar is made to drive upper die body to move down, realize the matched moulds of upper die body and lower mold body and treat and process pipe and clamp, then the right oil cylinder of synchronous averaging and left oil cylinder, their piston synchronous is stretched, driving right shaping core rod and left shaping core rod synchronously to treat processing pipe, to carry out equal-volume compressing, after compressing, the piston synchronous of right oil cylinder and left oil cylinder is synchronously made to shrink, right shaping core rod and left shaping core rod is driven synchronously to transfer to from heavy wall tubing pipe nipple light pipe, restart Vertical Cylinders to make vertical piston bar drive upper die body moves the demoulding, take out ultrashort heavy wall tubing pipe nipple light pipe, circulation like this.
Adopt tubing nipple three cylinder to carry out the compacting of equal-volume bi-directional synchronization to top compression molding device to heat pipe base to be processed and one-shot forming can obtain ultrashort heavy wall tubing pipe nipple light pipe, processing and forming technology is simple, ultrashort tubing nipple three cylinder is to the shaping press device reasonable in design in top, compacting efficiency is high, quality stability is good, the ultrashort heavy wall tubing pipe nipple light pipe institutional framework of gained is fine and close, and intensity is high.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of ultrashort heavy wall tubing pipe nipple to be processed;
Fig. 2 is the structural representation of pipe to be added;
Fig. 3 is the structural representation of ultrashort tubing nipple three cylinder to top compression molding device;
In figure: 1-support; 2-lower mold body; 3-upper die body; The right oil cylinder of 4-; The right shaping core rod of 5-; 6-Vertical Cylinders; 7-vertical piston bar; The left oil cylinder of 8-; The left shaping core rod of 9-; 10-Hydraulic Station; 11-pipe.
Detailed description of the invention:
A kind of ultrashort tubing nipple three cylinder is to top compression molding device, as shown in Figure 3, comprise support 1, lower mold body 2, upper die body 3, right oil cylinder 4, right shaping core rod 5, Vertical Cylinders 6, vertical piston bar 7, left oil cylinder 8, left shaping core rod 9 and Hydraulic Station 10, lower mold body 2, right oil cylinder 4, left oil cylinder 8 is all fixed on support 1, and right oil cylinder 4 and left oil cylinder 8 are distributed in the both sides of lower mold body 2 respectively coaxial-symmetrical, right shaping core rod 5 is direct-connected with the piston of right oil cylinder 4, left shaping core rod 9 is direct-connected with the piston of left oil cylinder 8, Vertical Cylinders 6 to be fixed on support 1 and to be arranged on the top of upper die body 3, the lower end of vertical piston bar 7 is fixedly connected with the center of gravity of upper die body 3, shaping mould section after right shaping core rod 5 docks with left shaping core rod 9 is identical with the cross sectional shape of tubing nipple inner chamber, right oil cylinder 4, Vertical Cylinders 6, left oil cylinder 8 is all connected with Hydraulic Station 10 by high-pressure oil pipe.
Its using method is as follows:
Before base pipe enters mould, right oil cylinder 4, the piston rod of Vertical Cylinders 6 and left oil cylinder 8 is all in contraction state, vertical piston bar 7 is in contraction state, wherein, upper die body 3 moves with on vertical piston bar 7, be separated with lower mold body 2, the die cavity of lower mold body 2 is exposed, after the pipe to be processed 11 after heating puts into the die cavity of lower mold body 2, first start Vertical Cylinders 6, vertical piston bar 7 is made to drive upper die body 3 to move down, realize the matched moulds of upper die body 3 and lower mold body 2 and treat and process pipe 11 and clamp, then the right oil cylinder of synchronous averaging 4 and left oil cylinder 8, their piston synchronous is stretched, driving right shaping core rod 5 and left shaping core rod 9 synchronously to treat processing pipe 11, to carry out equal-volume compressing, after compressing, the piston synchronous of right oil cylinder 4 and left oil cylinder 8 is synchronously made to shrink, right shaping core rod 5 and left shaping core rod 9 is driven synchronously to transfer to from heavy wall tubing pipe nipple light pipe, restart Vertical Cylinders 6 vertical piston bar 7 to be driven on upper die body 3 move the demoulding, take out ultrashort heavy wall tubing pipe nipple light pipe, circulation like this.
Claims (2)
1. ultrashort tubing nipple three cylinder is to a top compression molding device, it is characterized in that: comprise support (1), lower mold body (2), upper die body (3), right oil cylinder (4), right shaping core rod (5), Vertical Cylinders (6), vertical piston bar (7), left oil cylinder (8), left shaping core rod (9) and Hydraulic Station (10), lower mold body (2), right oil cylinder (4), left oil cylinder (8) is all fixed on support (1), and right oil cylinder (4) and left oil cylinder (8) are distributed in the both sides of lower mold body (2) respectively coaxial-symmetrical, right shaping core rod (5) is direct-connected with the piston of right oil cylinder (4), left shaping core rod (9) is direct-connected with the piston of left oil cylinder (8), Vertical Cylinders (6) is fixed on support (1) and goes up and the top being arranged on upper die body (3), the lower end of vertical piston bar (7) is fixedly connected with the center of gravity of upper die body (3), right shaping core rod (5) is identical with the cross sectional shape of tubing nipple inner chamber with the shaping mould section after left shaping core rod (9) docking, right oil cylinder (4), Vertical Cylinders (6), left oil cylinder (8) is all connected with Hydraulic Station (10) by high-pressure oil pipe.
2. ultrashort tubing nipple three cylinder described in claim 1 is to the using method of top compression molding device, it is characterized in that: before base pipe enters mould, right oil cylinder (4), the piston rod of Vertical Cylinders (6) and left oil cylinder (8) is all in contraction state, vertical piston bar (7) is in contraction state, wherein, upper die body (3) moves with on vertical piston bar (7), be separated with lower mold body (2), the die cavity of lower mold body (2) is exposed, after the pipe to be processed (11) after heating puts into the die cavity of lower mold body (2), first start Vertical Cylinders (6), vertical piston bar (7) is made to drive upper die body (3) to move down, realize upper die body (3)) treat and process pipe (11) with the matched moulds of lower mold body (2) and clamp, then the right oil cylinder of synchronous averaging (4) and left oil cylinder (8), their piston synchronous is stretched, driving right shaping core rod (5) and left shaping core rod (9) synchronously to treat processing pipe (11), to carry out equal-volume compressing, after compressing, the piston synchronous of right oil cylinder (4) and left oil cylinder (8) is synchronously made to shrink, right shaping core rod (5) and left shaping core rod (9) is driven synchronously to transfer to from heavy wall tubing pipe nipple light pipe, restart Vertical Cylinders (6) to make vertical piston bar (7) drive upper die body (3) moves the demoulding, take out ultrashort heavy wall tubing pipe nipple light pipe, circulation like this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510060175.6A CN104624714A (en) | 2015-02-05 | 2015-02-05 | Super-short oil tube pup joint three-cylinder opposite vertex compressing and molding equipment and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510060175.6A CN104624714A (en) | 2015-02-05 | 2015-02-05 | Super-short oil tube pup joint three-cylinder opposite vertex compressing and molding equipment and using method thereof |
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| CN104624714A true CN104624714A (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510060175.6A Pending CN104624714A (en) | 2015-02-05 | 2015-02-05 | Super-short oil tube pup joint three-cylinder opposite vertex compressing and molding equipment and using method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109130019A (en) * | 2018-09-27 | 2019-01-04 | 广东安格尔橡塑科技有限公司 | A kind of automatic demoulding component |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07214148A (en) * | 1994-02-03 | 1995-08-15 | Sango Co Ltd | Method for thickening metallic pipe |
| CN2542355Y (en) * | 2002-04-02 | 2003-04-02 | 机械工业部西安重型机械研究所 | Frame-type oil tube thickening machine |
| CN201848485U (en) * | 2010-10-29 | 2011-06-01 | 江苏胜大石油设备制造有限公司 | Mold for thickening pipe nipple oil pipe |
| CN203170783U (en) * | 2013-01-04 | 2013-09-04 | 西安宝信金属科技有限公司 | Oil tube end portion thickening machine |
| CN203695834U (en) * | 2013-08-16 | 2014-07-09 | 白晓旭 | Energy-saving drilling tool block press |
| CN104117613A (en) * | 2014-07-11 | 2014-10-29 | 江苏隆盛钻采机械制造有限公司 | Totally-closed multi-direction horizontal type die forging technology special for oil drill rod joint |
| CN204523830U (en) * | 2015-02-05 | 2015-08-05 | 江苏常宝钢管股份有限公司 | Ultrashort tubing nipple three cylinder is to top compression molding device |
-
2015
- 2015-02-05 CN CN201510060175.6A patent/CN104624714A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07214148A (en) * | 1994-02-03 | 1995-08-15 | Sango Co Ltd | Method for thickening metallic pipe |
| CN2542355Y (en) * | 2002-04-02 | 2003-04-02 | 机械工业部西安重型机械研究所 | Frame-type oil tube thickening machine |
| CN201848485U (en) * | 2010-10-29 | 2011-06-01 | 江苏胜大石油设备制造有限公司 | Mold for thickening pipe nipple oil pipe |
| CN203170783U (en) * | 2013-01-04 | 2013-09-04 | 西安宝信金属科技有限公司 | Oil tube end portion thickening machine |
| CN203695834U (en) * | 2013-08-16 | 2014-07-09 | 白晓旭 | Energy-saving drilling tool block press |
| CN104117613A (en) * | 2014-07-11 | 2014-10-29 | 江苏隆盛钻采机械制造有限公司 | Totally-closed multi-direction horizontal type die forging technology special for oil drill rod joint |
| CN204523830U (en) * | 2015-02-05 | 2015-08-05 | 江苏常宝钢管股份有限公司 | Ultrashort tubing nipple three cylinder is to top compression molding device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109130019A (en) * | 2018-09-27 | 2019-01-04 | 广东安格尔橡塑科技有限公司 | A kind of automatic demoulding component |
| CN109130019B (en) * | 2018-09-27 | 2024-06-11 | 广东安格尔橡塑科技有限公司 | Automatic demoulding assembly |
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Application publication date: 20150520 |