CN202070608U - Weld joint extrusion device for rounding thin-wall welded cylinder - Google Patents
Weld joint extrusion device for rounding thin-wall welded cylinder Download PDFInfo
- Publication number
- CN202070608U CN202070608U CN2011200919484U CN201120091948U CN202070608U CN 202070608 U CN202070608 U CN 202070608U CN 2011200919484 U CN2011200919484 U CN 2011200919484U CN 201120091948 U CN201120091948 U CN 201120091948U CN 202070608 U CN202070608 U CN 202070608U
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- mount pad
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- full circle
- weld seam
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Abstract
The utility model discloses a weld joint extrusion device for rounding a thin-wall welded cylinder, which comprises a male die, a female die, a male die installing seat, a female die installing seat, a movable supporting block and a fixed supporting block and is characterized in that the male die is arranged on the male die installing seat; the female die is arranged on the female die installing seat; one side of the bottom part of the male die installing seat is fixed on the fixed supporting block, and the other side of the bottom part of the male die installing seat is movably connected with the movable supporting block; and the curvature radii of the cross sections of the male die and the female die are equal to or slightly greater than the radius of a cylinder workpiece. In the utility model, the weld joint extrusion device for rounding the thin-wall welded cylinder is easy to implement, is simple and convenient to operate and has good rounding effect.
Description
Technical field
The utility model relates to the postwelding full circle field of thin cylinder, relates in particular to the postwelding full circle field of the thin cylinder in the vehicle exhaust after-treatment device, specifically a kind of thin walled welds cylinder full circle weld seam pressurizing unit.
Background technology
Thin-walled cylindrical workpiece in the industrial circle normally is welded after veneer reeling machine rolls by flat board.Because the inhomogeneous heating in the welding process, weld longitudinal joint after, cylindrical shell radially loses circle, assembles or the automatic welding of circumferential weld brings very big difficulty to follow-up parts.To manufacture requirement in order satisfying, will to carry out full circle (rectification circularity) to the postwelding cylinder usually.The method of full circle is a lot, and for example hammering method, rolled-on method, roller are rectified method etc., and these methods can both play certain effect on rectification cylinder circularity, but also have all deficiencies.The face of weld that hammering method was handled is more coarse, is difficult to meet the demands for the high cylindrical element of butt welded seam surface requirements; The shortcoming of rolled-on method is that equipment is huge, the manufacturing cost height; It is to utilize veneer reeling machine that the revolving body weldment is carried out orthopedic means that roller is rectified method, and its deficiency is to obtain satisfied orthopedic effect, and the pressure between roller must be enough big, otherwise full circle efficient and effect are all limited.
Summary of the invention
To be solved in the utility model is the problems referred to above that prior art exists, and aims to provide a kind of easy enforcement, easy and simple to handle and thin walled welds cylinder full circle weld seam pressurizing unit that full circle is effective.
The technical scheme that addresses the above problem employing is: thin walled welds cylinder full circle weld seam pressurizing unit, comprise punch, die, punch mount pad, die mount pad, movable supporting piece and fixed support block, it is characterized in that described punch is arranged on the described punch mount pad; Described die is arranged on the described die mount pad; Described punch mount pad bottom one side is fixed on the described fixed support block, and opposite side and described movable supporting piece flexibly connect; The radius of curvature of the cross section of described punch and die equals or is slightly larger than the radius of cylindrical workpieces.
The utility model at first is separately fixed at die mount pad and fixed support block on the slide block and workbench on the four column pressure machines in use, and makes the cambered surface center line centering of punch and die.Cylindrical workpieces is placed between punch and the die, and make the axis of a weld of cylindrical workpieces be positioned at the perpendicular at extrusion die cambered surface center line place.The movable supporting piece is pushed the bottom of punch mount pad, and fitted in the side of baffle plate and punch mount pad.Start forcing press slide block is fallen, the weld metal zone metal of cylindrical workpieces is applied suitable pressure by punch and die.Under the extruding force effect, weld seam and near metal thereof produce plastic deformation, make this regional welding vestige stress obtain discharging, and have therefore improved the circularity of cylindrical shell.Rise the slide block of forcing press, the movable supporting piece is extracted from the bottom of punch mount pad, take out cylindrical workpieces, finish the full circle process.
Thin walled welds cylinder full circle weld seam pressurizing unit of the present utility model is implemented easy, easy and simple to handle and full circle is effective.
As further improvement of the utility model, the side of described punch mount pad and fixed support block also is provided with and tightens device, the described device that tightens comprises that is fixed to the pull bar that first connecting plate on the described punch mount pad, are fixed to the opposite screw thread of second connecting plate on the described fixed support block and two ends band rotation direction, and described pull bar two ends are threaded with described first connecting plate and second connecting plate respectively.When the center of gravity of punch mount pad is big to the horizontal range of the boundary line of fixed support block and punch mount pad contact-making surface, tighten device can guarantee work the time movable supporting piece can fill in the bottom of punch mount pad smoothly.
Further improve as of the present utility model, the cambered surface width of die that places the top is more than or equal to the cambered surface width of punch again, and the cambered surface width of punch is 3～4 times of weld pool width, to obtain more good full circle effect.
Further improve as of the present utility model, also be provided with a baffle plate on the described movable supporting piece, described baffle plate also is provided with handle.Utilize handle the movable supporting piece to be pushed the bottom of punch mount pad, and fitted in the side of baffle plate and punch mount pad, contact area in the time of just guaranteeing at every turn to work between punch mount pad and the movable supporting piece is a constant value, thereby guarantees that the movable supporting piece possesses enough bearing capacitys when work.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is an operation principle schematic diagram of the present utility model.
Fig. 2 is a structural representation of the present utility model.
Fig. 3 is the left view of Fig. 2.
The specific embodiment
With reference to accompanying drawing, thin walled welds cylinder full circle weld seam pressurizing unit of the present utility model, comprise punch 2, die 3, punch mount pad 4, die mount pad 5, movable supporting piece 11 and fixed support block 12, punch 2 and die 3 are separately fixed on punch mount pad 4 and the die mount pad 5 by some bolts.Punch mount pad 4 is by being bolted on the fixed support block 12.The baffle plate 10 that has handle 9 is by being bolted on the movable supporting piece 11.
Also be provided with in the side of described punch mount pad 4 and fixed support block 12 and tighten device, the described device that tightens comprises connecting plate 6, pull bar 7 and connecting plate 8, the two ends of pull bar 7 are the opposite screw thread of rotation direction, respectively with connecting plate 6 and connecting plate 8 on screwed hole engagement.Connecting plate 6 and connecting plate 8 are separately fixed on fixed support block 12 and the punch mount pad 4 by bolt.
In the present embodiment, the yield strength of punch 2 and die 3 and case hardness will far above cylindrical workpieces 1 yield strength and case hardness; Punch mount pad 4 will have rigidity preferably.Arrive the horizontal range L of the boundary line 12-1 of fixed support block 12 and punch mount pad 4 contact-making surfaces as the center of gravity 4-1 of punch mount pad
3When big, tighten device can guarantee work the time movable supporting piece 11 can fill in the bottom of punch mount pad 4 smoothly.Specifically, screw pull bar 7 and can guarantee that fixed support block 12 and punch mount pad 4 fit tightly, make punch mount pad 4 free end maintenance level and can be not downward-sloping under the gravity effect, so just movable supporting piece 11 can be pushed smoothly punch mount pad 4 free-ended bottoms.
For obtaining good full circle effect, place the cambered surface width L of the die 3 of top
1Cambered surface width L more than or equal to punch 2
2, and the cambered surface width L of punch 2
2Be 3～4 times of weld pool width.
The course of work of the present utility model is as follows:
1, at first die mount pad 5 and fixed support block 12 are separately fixed on the slide block and workbench on the four column pressure machines, and make the cambered surface center line centering of punch 2 and die 3.
2, cylindrical workpieces 1 is placed between punch 2 and the die 3, and make the axis of a weld of cylindrical workpieces 1 be positioned at the perpendicular at extrusion die cambered surface center line place.
3, utilize handle 9 that movable supporting piece 11 is pushed the bottom of punch mount pad 4, and fitted in the side of baffle plate 10 and punch mount pad 4.
4, start forcing press slide block is fallen, the weld metal zone metal by punch 2 and 3 pairs of cylindrical workpieces 1 of die applies suitable pressure.
5, after extruding finishes, rise the slide block of forcing press, movable supporting piece 11 is extracted from the bottom of punch mount pad 4, take out cylindrical workpieces 1, finish the full circle process.
What should be understood that is: the foregoing description is just to explanation of the present utility model, rather than to restriction of the present utility model, any innovation and creation that do not exceed in the utility model connotation scope all fall within the protection domain of the present utility model.
Claims (6)
1. thin walled welds cylinder full circle weld seam pressurizing unit, comprise punch (2), die (3), punch mount pad (4), die mount pad (5), movable supporting piece (11) and fixed support block (12), it is characterized in that described punch (2) is arranged on the described punch mount pad (4); Described die (3) is arranged on the described die mount pad (5); Described punch mount pad (4) bottom one side is fixed on the described fixed support block (12), and opposite side and described movable supporting piece (11) flexibly connect; The radius of curvature of the cross section of described punch (2) and die (3) equals or is slightly larger than the radius of cylindrical workpieces (1).
2. thin walled welds cylinder full circle weld seam pressurizing unit as claimed in claim 1, it is characterized in that also being provided with and tighten device in the side of described punch mount pad (4) and fixed support block (12), the described device that tightens comprises that is fixed to the pull bar (7) that first connecting plate (8) on the described punch mount pad (4), are fixed to the opposite screw thread of second connecting plate (6) on the described fixed support block (12) and two ends band rotation direction, and described pull bar (7) two ends are threaded with described first connecting plate (8) and second connecting plate (6) respectively.
3. thin walled welds cylinder full circle weld seam pressurizing unit as claimed in claim 1, the cambered surface width (L of the die (3) above it is characterized in that placing
1) more than or equal to the cambered surface width (L of punch (2)
2).
4. thin walled welds cylinder full circle weld seam pressurizing unit as claimed in claim 3 is characterized in that the cambered surface width (L of punch (2)
2) be 3～4 times of weld pool width.
5. as any one described thin walled welds cylinder full circle weld seam pressurizing unit of claim 1-4, it is characterized in that also being provided with on the described movable supporting piece (11) baffle plate (10).
6. thin walled welds cylinder full circle weld seam pressurizing unit as claimed in claim 5 is characterized in that described baffle plate (10) also is provided with handle (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200919484U CN202070608U (en) | 2011-03-31 | 2011-03-31 | Weld joint extrusion device for rounding thin-wall welded cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200919484U CN202070608U (en) | 2011-03-31 | 2011-03-31 | Weld joint extrusion device for rounding thin-wall welded cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202070608U true CN202070608U (en) | 2011-12-14 |
Family
ID=45108720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200919484U Expired - Lifetime CN202070608U (en) | 2011-03-31 | 2011-03-31 | Weld joint extrusion device for rounding thin-wall welded cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202070608U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521962A (en) * | 2013-10-18 | 2014-01-22 | 无锡四方友信股份有限公司 | Barrel body double-station weld joint flatting machine |
| CN103551425A (en) * | 2013-10-23 | 2014-02-05 | 沈阳黎明航空发动机(集团)有限责任公司 | Deformation correcting method of circumferential weld of thin-wall titanium alloy welding casing |
| CN104438828A (en) * | 2014-10-29 | 2015-03-25 | 重庆建设摩托车股份有限公司 | Method for shaping center seam of three-piece overlap welded oil tank |
| CN104492941A (en) * | 2014-10-29 | 2015-04-08 | 重庆建设摩托车股份有限公司 | Three-sheet overlap welding fuel tank shaping die |
| CN107962310A (en) * | 2017-11-10 | 2018-04-27 | 北京航星机器制造有限公司 | A kind of postwelding predeformation improves connector and the method for mother metal deformation uniformity |
-
2011
- 2011-03-31 CN CN2011200919484U patent/CN202070608U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521962A (en) * | 2013-10-18 | 2014-01-22 | 无锡四方友信股份有限公司 | Barrel body double-station weld joint flatting machine |
| CN103521962B (en) * | 2013-10-18 | 2015-06-03 | 无锡四方友信股份有限公司 | Barrel body double-station weld joint flatting machine |
| CN103551425A (en) * | 2013-10-23 | 2014-02-05 | 沈阳黎明航空发动机(集团)有限责任公司 | Deformation correcting method of circumferential weld of thin-wall titanium alloy welding casing |
| CN103551425B (en) * | 2013-10-23 | 2015-04-08 | 沈阳黎明航空发动机(集团)有限责任公司 | Deformation correcting method of circumferential weld of thin-wall titanium alloy welding casing |
| CN104438828A (en) * | 2014-10-29 | 2015-03-25 | 重庆建设摩托车股份有限公司 | Method for shaping center seam of three-piece overlap welded oil tank |
| CN104492941A (en) * | 2014-10-29 | 2015-04-08 | 重庆建设摩托车股份有限公司 | Three-sheet overlap welding fuel tank shaping die |
| CN107962310A (en) * | 2017-11-10 | 2018-04-27 | 北京航星机器制造有限公司 | A kind of postwelding predeformation improves connector and the method for mother metal deformation uniformity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111214 |
|
| CX01 | Expiry of patent term |