CN101422789B - High-accurate large cold drawbench - Google Patents
High-accurate large cold drawbench Download PDFInfo
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- CN101422789B CN101422789B CN2008102320600A CN200810232060A CN101422789B CN 101422789 B CN101422789 B CN 101422789B CN 2008102320600 A CN2008102320600 A CN 2008102320600A CN 200810232060 A CN200810232060 A CN 200810232060A CN 101422789 B CN101422789 B CN 101422789B
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- drawn
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Abstract
The invention belongs to a large scale cold drawbench in the field of metallurgy, which is characterized by at least comprising a die sleeve (14) for fixing a drawing die (7), a movable trolley for fixing the end of a cold draw blank (3), a stretching device arranged at the end of the die sleeve (14) and used for stretching and fixing a cold draw tube (8). The die sleeve is mounted on a front beam in a passing-through way and connected with the front beam by an end flange; and the outer surface of the die sleeve is a cylndrical surface, and the inner hole has a conical surface so as to be matched with the fixed drawing die (7). The large scale cold drawbench is characterized in that the front end of the fixed drawing die (7) is provided with a rolling drawing-die (6) used for pre-deforming the cold draw blank (3). The large scale cold drawbench has high yield and can be used for drawing high-precision large cold drawbenchs with the diameter of 1000mm, the length of 12000mm and the thickness of 13mm-60mm.
Description
Technical field
The invention belongs to the large-scale cold drawing tube machine of field of metallurgy, particularly be applied to the high-accurate large cold drawbench of the production of metallurgical and coloured industry metal seamless tube.
Background technology
The present mode of production of large-scale seamless pipe has: " hot spun casting " " oblique milling hot piercing " " hot-expanding pipe " " horizontal hot drawing and vertical hot piercing "; Cold " interior boring is shelled outward " (Japan), " cold grinding " etc.
State's interior diameter is that 2000 tons of hydraulic cold drawn pipe machines of 660 are gone into operation, owing to adopted with little amplification mode and made cold drawing tube machine, tradition forces the system head to make lumber recovery low, pure fixed mould cold-drawn has limited the drawing deformation amount, and " pure cold-drawn " makes the stress state after the pipe cold-drawn poorer than " the compound cold-drawn of push-and-pull ".
Along with the demand of the energy, boats and ships, ocean, mechanical industry development, large-scale seamless pipe broad market prospect.
Summary of the invention
The purpose of this invention is to provide a kind of lumber recovery height, draw diameter 1000, length 12000, the high-accurate large cold drawbench and the cold-drawing method of wall thickness 13 to 60.
The object of the present invention is achieved like this, high-accurate large cold drawbench, at least comprise the die sleeve of fixing fixedly stretching die, fixedly travelling car, the die sleeve port of export of cold-drawn pipe end are used to stretch and the fixing stretching device of drawn tube, die sleeve is installed on the front-axle beam to run through mode, is connected with front-axle beam with end flange; Die sleeve outside is the garden cylinder, and endoporus is the garden conical surface, is used for cooperating with fixing stretching die; It is characterized in that: fixedly the stretching die front end has the rolling drawing die, is used for the cold-drawn pipe is carried out predeformation.
Described travelling car is the thrust dolly, and being used for provides thrust to cold-drawn pipe cold-drawn direction.
Described stretching device is to be made of compound Chuck jaw of inside and outside chuck and driving stretching oil cylinder; By driving the internally compound Chuck jaw effect of outer chuck of stretching oil cylinder, finish inside and outside clamping and cold-drawn to drawn tube.
Described inside and outside compound Chuck jaw of chuck and driving stretching oil cylinder comprise interior chuck, outer chuck, outer chuck driving cylinder, interior chuck driving cylinder, stretching oil cylinder; Interior chuck is controlled by interior chuck driving cylinder, outer chuck is controlled by outer chuck driving cylinder, and the outer Chuck jaw clamping drawn tube external diameter mouth of clamp is stung the material Driven by Hydraulic Cylinder in the jaw, the interior Chuck jaw clamping steel pipe interior diameter of clamp, jaw are stung the material Driven by Hydraulic Cylinder outward; Interior chuck, outer chuck, outer chuck driving cylinder, interior chuck driving cylinder are fixed in the stretching dolly; Stretching dolly and stretching oil cylinder are fixed.
The drawn tube diameter of described rolling drawing die and fixedly stretching die moulding reaches 1000mm, and length reaches 12000mm, wall thickness 13mm to 60mm.
The course of work of the present invention and advantage are: by rolling drawing die 6 and fixedly stretching die 7 combinations, cold-drawn pipe 3 one side predeformation are stretched on one side, tensile force is finished jointly by thrust dolly 1 and the compound Chuck jaw of inside and outside chuck and driving stretching oil cylinder, realize the cold-drawn of major diameter cold-drawn pipe 3, make moulding drawn tube diameter reach 1000mm, length reaches 12000mm, wall thickness 13mm to 60mm, the seamless drawn tube lumber recovery height of moulding.
Description of drawings
The invention will be further described below in conjunction with the embodiment accompanying drawing.
Fig. 1 is an embodiment of the invention structural representation.
Among the figure: 1, thrust dolly; 2, push action cylinder; 3, cold-drawn pipe; 4, Hydraulic Power Transmission System 5, electric-control system; 6, rolling drawing die; 7, fixing stretching die; 8, drawn tube; 9, interior chuck; 10, outer chuck; 11 outer chuck driving cylinders; 12, interior chuck driving cylinder; 13, stretching oil cylinder; 14, die sleeve; 15, stretching dolly.
The specific embodiment
As shown in Figure 1, fixedly the travelling car of die sleeve 14 1 ends of stretching die 7 is thrust dollies 1, is used for providing thrust to cold-drawn pipe 3 cold-drawn directions.Fixedly the other end of the die sleeve 14 of stretching die 7 is stretching dollies 15, is used for stretching and fixing drawn tube 8.Die sleeve 14 is installed on the front-axle beam to run through mode, is connected with front-axle beam with end flange; Die sleeve 14 outsides are the garden cylinder, and endoporus is the garden conical surface, are used for cooperating with fixing stretching die 7, and fixedly stretching die 7 front ends have rolling drawing die 6, are used for cold-drawn pipe 3 is carried out predeformation.
In the operation, push action cylinder 2 is auxiliary power sources of stretching operation, provides motive force by stretching dolly 1 for tube forming.Push action cylinder 2 is installed on the auxilliary beam, and when the stretching operation, auxilliary beam also is the main supporting body of distortion thrust.
Constitute stretching device by compound Chuck jaw of inside and outside chuck and driving stretching oil cylinder 13; Chuck 9, outer chuck 10, outer chuck driving cylinder 11, interior chuck driving cylinder 12, stretching oil cylinder 13 in inside and outside compound Chuck jaw of chuck and driving stretching oil cylinder 13 comprise; Interior chuck 9, outer chuck 10, outer chuck driving cylinder 11, interior chuck driving cylinder 12 are fixed in the stretching dolly 15; Stretching dolly 15 is fixing with stretching oil cylinder 13.By driving the compound Chuck jaw effect of chuck inside and outside 13 pairs of the stretching oil cylinders, finish inside and outside clamping and cold-drawn to drawn tube 8.
Stretching dolly 15 usefulness rollers are located on lathe bed and are rolled, and the afterbody of stretching dolly 15 and the piston rod of hydraulic cylinder are hinged.The inside and outside compound Chuck jaw of chuck of stretching dolly 15 front ends installing, interior chuck 9 is by interior chuck driving cylinder 12 controls, outer chuck 10 is by outer chuck driving cylinder 11 controls, the outer Chuck jaw clamping drawn tube 8 external diameter mouths of clamp, sting the material Driven by Hydraulic Cylinder in the jaw, the interior chuck 9 jaw clamping steel pipe interior diameters of clamp, jaw are stung the material Driven by Hydraulic Cylinder outward.Above stretching dolly 15, be provided with one group of drag chain with stretching dolly 15 motion, be exclusively used in to dolly clamp cylinder hydraulic power is provided.During the stretching products of different specifications, clamp is replaceable.
In the exit of front-axle beam, be provided with the drawing-die liftout attachment.The drawing-die liftout attachment ejects die sleeve to the drawing-die with mistake by Driven by Hydraulic Cylinder when ejecting force also is used to change drawing-die.The drawing-die liftout attachment only drops on the stretched center line in use.
All oil cylinder hydraulic transmission systems 4 are controlled through electric-control system 5.
Rolling drawing die 6 reaches 1000mm with the fixing drawn tube diameter of stretching die 7 moulding, and length reaches 12000mm, wall thickness 13mm to 60mm.
Claims (4)
1. high-accurate large cold drawbench, at least comprise the die sleeve (14) of fixing stretching die (7), fixedly travelling car, die sleeve (14) port of export of cold-drawn pipe (3) end are used for stretching and the fixing stretching device of drawn tube (8), die sleeve (14) is installed on the front-axle beam to run through mode, is connected with front-axle beam with end flange; Die sleeve outside is the face of cylinder, and endoporus is a taper seat, is used for cooperating with fixing stretching die (7); It is characterized in that: fixedly stretching die (7) front end has rolling drawing die (6), is used for cold-drawn pipe (3) is carried out predeformation, and described stretching device is to be made of compound Chuck jaw of inside and outside chuck and driving stretching oil cylinder; By driving the internally compound Chuck jaw effect of outer chuck of stretching oil cylinder, finish inside and outside clamping and cold-drawn to drawn tube (8).
2. high-accurate large cold drawbench according to claim 1 is characterized in that: described travelling car is thrust dolly (1), and being used for provides thrust to cold-drawn pipe (3) cold-drawn direction.
3. high-accurate large cold drawbench according to claim 1 is characterized in that: described inside and outside compound Chuck jaw of chuck and driving stretching oil cylinder comprise interior chuck (9), outer chuck (10), outer chuck driving cylinder (11), interior chuck driving cylinder (12), stretching oil cylinder (13); Interior chuck (9) is controlled by interior chuck driving cylinder (12), outer chuck (10) is controlled by outer chuck driving cylinder (11), outer Chuck jaw clamping drawn tube (8) the external diameter mouth of clamp, sting the material Driven by Hydraulic Cylinder in the jaw, the interior Chuck jaw clamping steel pipe interior diameter of clamp, jaw are stung the material Driven by Hydraulic Cylinder outward; Interior chuck (9), outer chuck (10), outer chuck driving cylinder (11), interior chuck driving cylinder (12) are fixed in the stretching dolly (15); Stretching dolly (15) is fixing with stretching oil cylinder (13).
4. high precision large-sized drawn tube equipment according to claim 1 is characterized in that: described rolling drawing die (6) reaches 1000mm with the fixing drawn tube diameter of stretching die (7) moulding, and length reaches 12000mm, wall thickness 13mm to 60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102320600A CN101422789B (en) | 2008-10-31 | 2008-10-31 | High-accurate large cold drawbench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102320600A CN101422789B (en) | 2008-10-31 | 2008-10-31 | High-accurate large cold drawbench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101422789A CN101422789A (en) | 2009-05-06 |
| CN101422789B true CN101422789B (en) | 2011-04-06 |
Family
ID=40613798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102320600A Expired - Fee Related CN101422789B (en) | 2008-10-31 | 2008-10-31 | High-accurate large cold drawbench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101422789B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921753A (en) * | 2012-11-15 | 2013-02-13 | 中兴能源装备股份有限公司 | Improved steel pipe diameter reducing device |
| CN112024626A (en) * | 2020-08-14 | 2020-12-04 | 无锡广兴东茂科技有限公司 | Special-shaped steel drawing method and drawing device |
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2008
- 2008-10-31 CN CN2008102320600A patent/CN101422789B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101422789A (en) | 2009-05-06 |
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| Date | Code | Title | Description |
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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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20131031 |