CN101716616A - Method for producing seamless steel tube by combination of drawing and expanding and device thereof - Google Patents
Method for producing seamless steel tube by combination of drawing and expanding and device thereof Download PDFInfo
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- CN101716616A CN101716616A CN200910312252A CN200910312252A CN101716616A CN 101716616 A CN101716616 A CN 101716616A CN 200910312252 A CN200910312252 A CN 200910312252A CN 200910312252 A CN200910312252 A CN 200910312252A CN 101716616 A CN101716616 A CN 101716616A
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Abstract
The invention discloses an automatic welding device of a wing plate of a stainless steel seamless steel tube, which comprises a rotary chuck, a conveying mechanism, a vertical cylinder ejector rod and a transverse cylinder ejector rod, wherein the stainless steel seamless steel tube and the wing plate are placed on a working platform, the vertical cylinder ejector rod and the transverse cylinder ejector rod are respectively ejected and pressed on the surface and the side surface of the wing plate, and the other side surface of the wing plate is in contact with the end surface of the stainless steel seamless steel tube. The automatic welding device of the wing plate of the stainless steel seamless steel tube can evenly weld equal parts of the strip-shaped wing plate on the longitudinal tangent surface of the steel tube to be produced. As long as the steel tube and the wing plate to be welded are loaded, the process can be automatically completed by the machine. Therefore, the automatic welding device can greatly reduce the labor intensity of workers and have great positive and practical significance in the aspects of improving productivity and saving production cost.
Description
Technical field
The present invention relates to a kind of steel pipe's production technology, particularly a kind of method and device thereof that is suitable for drawing and hole enlargement producing seamless steel tube by combination.
Background technology
In in the steel pipe's production of big specification, has generally adopted expanding technology, but, promptly had eccentricity issues, and the S-shaped distribution of the inhomogeneities of thickness makes that to remove this defective very difficult because mother tube can not be accomplished its wall thickness in full accord at the circumference each point.Drawing can improve the eccentricity of steel pipe, make the thick point that is scattered on the S shape be pushed flattening, and hole enlargement has aggravated the eccentricity of steel pipe, allows the steel pipe metal structure become loose.In order to improve this situation, the steel pipe of big specification during the domestic method that has many producers to adopt drawing to combine with hole enlargement is at present produced.
Big specification steel pipe was when drawing during yet the method that the drawing of adopting at present combines with hole enlargement was produced, adopt a column bloom as the drawing head, the drawing head of this column bloom is welded on the steel pipe spout part that needs drawing by corbel back slab, carries out drawing by clamping this column bloom again.
Yet when the needs hole enlargement, owing to be welded with the drawing head of column bloom by corbel back slab at the steel pipe spout part, drawing head at the column bloom stops down, hole enlargement can't be carried out, so must expand the excision of the drawing head of this column bloom again through operation again, when needing drawing once more after the hole enlargement, need to weld column bloom again as the drawing head, when the continuous repetitive cycling drawing of needs and hole enlargement two procedures and when reaching required standard pipe size, just need constantly weld and excise this column bloom as the drawing head, this is two conflicting operations.
So, in the prior art, as the technology that will realize that drawing combines with hole enlargement, just this column bloom as the steel pipe drawing head repeatedly must the be burn-on feed consumption consuming time that downcuts not only but also consumption worker's operation, also increased the production cost of steel pipe thus greatly, under the condition of market economy, the technology that present drawing combines with hole enlargement, except the employing of having on doing the large-diameter steel pipe of some thin-walleds, producer all can't adopt this technology to produce usually.
Summary of the invention
The objective of the invention is to provide that a kind of production cost is low for the deficiency that solves above-mentioned technology, labour's less investment, mechanization degree and production efficiency height, good product quality can be realized the method and the device thereof of drawing and hole enlargement producing seamless steel tube by combination easily.
In order to achieve the above object, the method of drawing provided by the present invention and hole enlargement producing seamless steel tube by combination, comprise and adopt the drawing power source, it is characterized in that the dismountable type locking device being set, during drawing on the open type locking member at the affixed open type locking member of the mouth of pipe of the steel pipe of need drawing, the dismountable type locking device is locked the open type locking member, and be connected with the drawing power source, pulling dismountable type locking device under the effect of drawing power source, and pulling needs the steel pipe of drawing; After drawing was finished, the dismountable type locking device unclamped the open type locking member, and the steel pipe that will be connected with the open type locking member again enters the hole enlargement operation; Since the mouth of pipe of steel pipe affixed be the open type locking member, so when hole enlargement, do not need but this open type locking member is removed just hole enlargement, the dismountable type locking device is contained on the open type locking member affixed on the steel pipe again after the hole enlargement, repeat drawing process, constantly circulate thus drawing and hole enlargement are until reaching required steel pipe caliber.
The device of drawing provided by the present invention and hole enlargement producing seamless steel tube by combination, comprise the open type locking member that is fixed on the steel pipe mouth of pipe that needs drawing, drawing power source and expander, it is characterized in that on the open type locking member, being provided with the dismountable type locking device, described dismountable type locking device comprises that male-tapered drawing body and inner conical agree with body outward, male-tapered drawing body places open type locking member inboard, inner conical agrees with body outward and places the open type locking member outside, be provided with the locking pull bar on male-tapered drawing body, the locking pull bar passes inner conical to be agreed with body outward and is connected with the drawing power source.Described is to be welded with the wing plate that comprises more than two on the steel pipe mouth of pipe at affixed open type locking member on the steel pipe mouth of pipe, and wing plate tilts to the steel pipe center line, and agrees with body formation cooperation outside male-tapered drawing body and inner conical.At this, described drawing power source comprises power source and drawing dolly, drive power source drawing carriage walking, described drawing dolly comprises the slip car body, in the slip car body, be provided with the locking slide block, inner conical agrees with body outward and is fixed on the slip car body, and an end of locking pull bar is connected with the locking slide block, and the other end of locking pull bar draws group body to be connected with male-tapered.One end of described described locking pull bar is connected with the locking slide block, is that an end and the locking slide block of locking pull bar is meshed by tongue and groove, can be that locking pull bar one end is provided with and on groove and the locking slide block tongue is set and meshes, and also can be provided with on the contrary.The locking slide block is provided with the slide block connector, and the slide block connector is connected with power traction bar on the power source, and the slip car body is located on the track, and can move in orbit.
Described locking slide block is provided with the slide block connector, can be on the slide block connector groove to be set, and the locking slide block is by groove removable connection on the slide block connector.
Described locking pull bar passes inner conical to be agreed with body outward and is connected with the drawing power source, be to draw to dial on the body in male-tapered to be provided with through hole, outside inner conical, agree with and be provided with the aperture on the body, the locking pull bar draws group body to be connected by through hole and male-tapered, and pass the aperture that inner conical agrees with on the body outward and is connected with the locking slide block, the locking slide block passes through the slide block connector and is connected with power traction bar on the power source.Described locking pull bar draws group body to be connected by through hole and male-tapered, is to be provided with a ladder at an end of locking pull bar, and the diameter of ladder is greater than through hole, and the locking pull bar is used to be through at male-tapered and is drawn the through hole of dialling body.Described locking pull bar draws group body to be connected by through hole and male-tapered, is to be provided with screw thread on an end of locking pull bar, is provided with screw in the through hole on male-tapered drawing body, and an end of locking pull bar links by the screw on screw thread and the male-tapered drawing body.
Standardized designs detachable recycles the drawing head and the drawing dolly is two indispensable supporting technologies, if steel pipe's production producer does not want to buy automatic corbel back slab bonding machine at present, present technique also can be carried out, and does not just realize high efficiency and mechanization.We have adopted a drawing standardized designs, and to the improvement of drawbench drawing dolly, the two replaces traditional jaw interlock in the mode of agreeing with in addition.
Adopt a kind of method that is suitable for drawing and hole enlargement producing seamless steel tube by combination provided by the present invention to produce seamless steel pipe, replace hand labor to realize process automation with mechanized operation, dismountable type locking device recycling in Cold Drawing Process saved a large amount of stainless steel drawing heads, really realized the outstanding technology that the heavy caliber seamless steel pipe drawing combines with hole enlargement with steel pipe both ends open formula, make thickness of steel pipe more even, metal structure is tightr, production technology is more reasonable, efficient more improves, product quality is more superior, moves towards mechanization for steel pipe's production and has strided forward major step.
Saved production cost significantly, no longer need stainless steel drawing head of every steel pipe weldering, these solid drawing heads of the prior art also can siphon away a large amount of heat energy by stove except cost of idleness in the solid solution stove, repeatedly can only scrap behind the annealing and pickling, the wing plate that the present invention adopts also can be than original deficient 1/3-1/2, the welding wire and the argon gas that have not had argon arc welding, no longer need use in the past pliers and dental lamina, calculate by annual a production more than 10000 medium calibers of medium-sized stainless steel tube factory, can save 1,000,000 yuan/year of costs at least.If promote to nearly 300 producers in the whole nation by this technology, a year saving cost will be several hundred million RMB.And we think this technology except using in the stainless steel tube field, also can use other cold drawn alloy or non-ferrous metal tubing manufacturing industry.
Realize that the outstanding technology that drawing combines with hole enlargement has important effect to producing big specification thin-wall steel tube.And technology of the present invention makes this outstanding technology that real ample scope for abilities arranged.Also have, because of really having realized drawing and hole enlargement process combined, the inherence and the appearance quality of steel pipe have been improved, to produce the OD168 steel pipe is example, draw a time again after each hole enlargement, actual maximum hole enlargement is OD175, as it is cold rolling again to adopt cold-rolling mill technology steel pipe must be diffused into OD205MM, the above bassoon of the OD273 method that once diffuses into the position must have reconditionings a large amount of between passage in this way, not so may make steel pipe eccentric to scrapping, and the steel pipe eccentricity that adopts method of the present invention to produce obviously reduces, and the method in drawing three roads is more reasonable again than the OD190MM that diffuses into that generally uses now.
The method of drawing provided by the invention and hole enlargement producing seamless steel tube by combination is extremely installed, and is of far-reaching significance to the production of China's gapless stainless steel tube, and substitute present soldering tip technology has overwhelming advantage comprehensively.
Description of drawings
Fig. 1 is an embodiment of the invention structural representation.；
Fig. 2 is embodiment 2 structural representations.
Wherein: male-tapered is drawn and is dialled body 1, inner conical agrees with body 2, locking pull bar 3, open type locking member 4, wing plate 41, slide block connector 5, locking slide block 6, slip car body 7, aperture 8, through hole 9, tongue 10, track 11, groove 12, power traction bar 13, groove 14, ladder 15 outward.
The specific embodiment
The invention will be further described in conjunction with the accompanying drawings below by embodiment.
Embodiment 1
The method of drawing that present embodiment provided and hole enlargement producing seamless steel tube by combination, comprise and adopt the drawing power source, it is characterized in that the affixed open type locking member of the mouth of pipe at the steel pipe of need drawing, the dismountable type locking device is set on the open type locking member, during drawing, the dismountable type locking device is locked the open type locking member, and is connected with the drawing power source, pulling dismountable type locking device under the effect of drawing power source, and pulling needs the steel pipe of drawing; After drawing was finished, the dismountable type locking device unclamped the open type locking member, and the steel pipe that will be connected with the open type locking member again enters the hole enlargement operation; Since the mouth of pipe of steel pipe affixed be the open type locking member, so when hole enlargement, do not need but this open type locking member is removed just hole enlargement, the dismountable type locking device is contained on the open type locking member affixed on the steel pipe again after the hole enlargement, repeat drawing process, constantly circulate thus drawing and hole enlargement are until reaching required steel pipe caliber.
For drawing that invention is provided and the method for hole enlargement producing seamless steel tube by combination are committed to practice, the device of drawing that present embodiment provided and hole enlargement producing seamless steel tube by combination, as shown in Figure 1, comprise the open type locking member 4 that is fixed on the steel pipe mouth of pipe that needs drawing, drawing power source and expander, on open type locking member 4, be provided with the dismountable type locking device, described dismountable type locking device comprises that male-tapered drawing body 1 and inner conical agree with body 2 outward, during drawing, male-tapered drawing body 1 places open type locking member 4 inboards, inner conical agrees with body 2 outward and places open type locking member 4 outsides, be provided with locking pull bar 3 on male-tapered drawing body 1, locking pull bar 3 passes inner conical to be agreed with body 2 outward and is connected with the drawing power source.Present embodiment is described to be to be welded with four wing plate 4-1 on the steel pipe mouth of pipe at affixed open type locking member 4 on the steel pipe mouth of pipe, and four wing plate 4-1 tilt to the steel pipe center line, and agrees with body 2 form and cooperate outside male-tapered drawing body 1 and inner conical.At this, described drawing power source comprises power source and drawing dolly, drive power source drawing carriage walking, described drawing dolly comprises slip car body 7, in slip car body 7, be provided with locking slide block 6, inner conical agrees with body outward and is fixed on the slip car body 7, and an end of locking pull bar 3 is connected with locking slide block 6, and the other end of locking pull bar 3 draws group body 1 to be connected with male-tapered.One end of described described locking pull bar 3 is connected with locking slide block 6, is that an end and the locking slide block 6 of locking pull bar 3 is meshed by tongue and groove, can be that locking pull bar 3 one ends are provided with and on groove 14 and the locking slide block 6 tongue 10 are set and mesh, and also can be provided with on the contrary.Locking slide block 6 is provided with slide block connector 5, and slide block connector 5 is connected with power traction bar 13 on the power source, and slip car body 7 is located on the track 11, and can move on track 11.Described locking slide block 6 is provided with slide block connector 5, can be groove 12 is set on slide block connector 5, and locking slide block 6 is by groove 12 removable connection on slide block connector 5.Described locking pull bar 3 passes inner conical to be agreed with body 2 outward and is connected with the drawing power source, be to draw to dial on the body 1 in male-tapered to be provided with through hole 9, outside inner conical, agree with and be provided with aperture 8 on the body 2, locking pull bar 3 draws group body 1 to be connected by through hole 9 and male-tapered, and pass the aperture 8 that inner conical agrees with on the body 2 outward and is connected with locking slide block 6, locking slide block 6 passes through slide block connector 5 and is connected with power traction bar 13 on the power source.Described locking pull bar 3 draws group body 1 to be connected by through hole 9 and male-tapered, is to be provided with a ladder 15 at an end of locking pull bar 3, and the diameter of ladder 15 is greater than through hole 9, and locking pull bar 3 is used to be through at male-tapered and is drawn the through hole 9 of dialling body 1.Present embodiment agrees with clamping wing plate 4-1 between the body 2 outside male-tapered drawing body 1 and inner conical, the clamping force of utilizing male-tapered drawing body 1 and inner conical to agree with body 2 outward clamps the welding that wing plate 4-1 substitutes drawing head and wing plate in the prior art, makes to lock and loosen wing plate to become very convenient.
Embodiment 2:
As shown in Figure 2, present embodiment is described to be bivalve wing plate 4-1 of welding on the steel pipe mouth of pipe at affixed open type locking member 4 on the steel pipe mouth of pipe, described locking pull bar 3 draws group body 1 to be connected by through hole 9 and male-tapered, be on an end of locking pull bar 3, to be provided with screw thread, be provided with screw in 1 the through hole 9 on male-tapered drawing body, an end of locking pull bar 3 links by the screw on screw thread and the male-tapered drawing body 1.
Claims (8)
1. the method for drawing and hole enlargement producing seamless steel tube by combination, comprise adopting and pull out motive force source and hole enlargement operation, it is characterized in that pulling out the affixed open type locking member of the mouth of pipe of the steel pipe that draws at need, the dismountable type locking device is set on the open type locking member, pull out when drawing, the dismountable type locking device is open type locking member locking, and with pull out the motive force source and be connected, pulling dismountable type locking device under the effect of pulling out the motive force source, and pulling need be pulled out the steel pipe that draws; Pull out pull after, the dismountable type locking device unclamps the open type locking member, the steel pipe that will be connected with the open type locking member again enters the hole enlargement operation; Again the dismountable type locking device is contained on the open type locking member affixed on the steel pipe after the hole enlargement, repeats to pull out drawing process, constantly circulate to pull out thus and draw and hole enlargement, until reaching required steel pipe caliber.
2. the device of drawing and hole enlargement producing seamless steel tube by combination, comprise and be fixed in the open type locking member (4) that need pull out on the steel pipe mouth of pipe that draws, pull out motive force source and expander, it is characterized in that on open type locking member (4), being provided with the dismountable type locking device, described dismountable type locking device comprises that male-tapered drawing body (1) and inner conical agree with body (2) outward, male-tapered drawing body (1) places open type locking member (4) inboard, inner conical agrees with body (2) outward and places open type locking member (4) outside, be provided with locking pull bar (3) on male-tapered drawing body, locking pull bar (3) passes inner conical to be agreed with body (2) outward and pulls out the motive force source and be connected.
3. the device of drawing according to claim 2 and hole enlargement producing seamless steel tube by combination, it is characterized in that at affixed open type locking member on the steel pipe mouth of pipe it being to be welded with the wing plate that comprises more than two on the steel pipe mouth of pipe, wing plate tilts to the steel pipe center line, and agrees with body (2) formation cooperation outside male-tapered drawing body (1) and inner conical.
4. according to the device of claim 2 or 3 described drawings and hole enlargement producing seamless steel tube by combination, it is characterized in that the described motive force source of pulling out comprises that power source draws dolly with pulling out, described pulling out draws dolly to comprise slip car body (7), in slip car body (7), be provided with locking slide block (6), inner conical agrees with body (2) outward and is fixed on the slip car body (7), one end of locking pull bar (3) is connected with locking slide block (6), and the other end of locking pull bar (3) draws group body (1) to be connected with male-tapered.
5. the device of drawing according to claim 4 and hole enlargement producing seamless steel tube by combination, an end that it is characterized in that described described locking pull bar (3) is connected with locking slide block (6), the end and the locking slide block (6) that are locking pull bar (3) are meshed by tongue and groove, locking slide block (6) is provided with slide block connector (5), slide block connector (5) is connected with power traction bar (13) on the power source, and slip car body (7) is located on the track (11).
6. the device of drawing according to claim 5 and hole enlargement producing seamless steel tube by combination, it is characterized in that described locking pull bar (3) passes inner conical and agrees with body (2) outward and pull out the motive force source and be connected, be to draw to dial on the body (1) in male-tapered to be provided with through hole (9), outside inner conical, agree with and be provided with aperture (8) on the body (2), locking pull bar (3) draws group body (1) to be connected by through hole (9) and male-tapered, and pass the aperture (8) that inner conical agrees with on the body (2) outward and is connected with locking slide block (6), locking slide block (6) passes through slide block connector (5) and is connected with power traction bar (13) on the power source.
7. the device of drawing according to claim 6 and hole enlargement producing seamless steel tube by combination, it is characterized in that described locking pull bar (3) draws group body (1) to be connected by through hole (9) and male-tapered, be to be provided with a ladder (15) at an end of locking pull bar (3), the diameter of ladder (15) is greater than through hole (9), and locking pull bar (3) is used to be through at male-tapered and is drawn the through hole (9) of dialling body (1).
8. the device of drawing according to claim 6 and hole enlargement producing seamless steel tube by combination, it is characterized in that described locking pull bar (3) draws group body (1) to be connected by through hole (9) and male-tapered, be on an end of locking pull bar (3), to be provided with screw thread, be provided with screw in the through hole (9) of (1) on male-tapered drawing body, an end of locking pull bar (3) links by the screw on screw thread and the male-tapered drawing body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103122527A CN101716616B (en) | 2009-12-25 | 2009-12-25 | Method for producing seamless steel tube by combination of drawing and expanding and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103122527A CN101716616B (en) | 2009-12-25 | 2009-12-25 | Method for producing seamless steel tube by combination of drawing and expanding and device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101716616A true CN101716616A (en) | 2010-06-02 |
| CN101716616B CN101716616B (en) | 2012-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009103122527A Expired - Fee Related CN101716616B (en) | 2009-12-25 | 2009-12-25 | Method for producing seamless steel tube by combination of drawing and expanding and device thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102935573A (en) * | 2012-03-19 | 2013-02-20 | 济南吉利汽车有限公司 | Pneumatic lock positioning rotary working table |
| CN104889274A (en) * | 2015-05-14 | 2015-09-09 | 南通福乐达汽车配件有限公司 | Universal round tube necking and flaring forming tool |
| CN106734287A (en) * | 2016-11-16 | 2017-05-31 | 安徽宝泰特种材料有限公司 | A kind of tube head clamping tool of coloured rare metal tube drawing |
| CN108817968A (en) * | 2018-09-04 | 2018-11-16 | 山东联瑞石油技术有限公司 | Steel pipe cuts flattening device |
| CN112620369A (en) * | 2020-12-01 | 2021-04-09 | 上海浦营金属科技有限公司 | Processing device for high-performance stainless steel seamless steel pipe |
-
2009
- 2009-12-25 CN CN2009103122527A patent/CN101716616B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102935573A (en) * | 2012-03-19 | 2013-02-20 | 济南吉利汽车有限公司 | Pneumatic lock positioning rotary working table |
| CN104889274A (en) * | 2015-05-14 | 2015-09-09 | 南通福乐达汽车配件有限公司 | Universal round tube necking and flaring forming tool |
| CN106734287A (en) * | 2016-11-16 | 2017-05-31 | 安徽宝泰特种材料有限公司 | A kind of tube head clamping tool of coloured rare metal tube drawing |
| CN108817968A (en) * | 2018-09-04 | 2018-11-16 | 山东联瑞石油技术有限公司 | Steel pipe cuts flattening device |
| CN112620369A (en) * | 2020-12-01 | 2021-04-09 | 上海浦营金属科技有限公司 | Processing device for high-performance stainless steel seamless steel pipe |
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| Publication number | Publication date |
|---|---|
| CN101716616B (en) | 2012-06-20 |
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Granted publication date: 20120620 Termination date: 20131225 |