CN103433638B - The band steel welding pressurizing unit of ratio-frequency welding testing stand - Google Patents
The band steel welding pressurizing unit of ratio-frequency welding testing stand Download PDFInfo
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- CN103433638B CN103433638B CN201310350027.9A CN201310350027A CN103433638B CN 103433638 B CN103433638 B CN 103433638B CN 201310350027 A CN201310350027 A CN 201310350027A CN 103433638 B CN103433638 B CN 103433638B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 68
- 239000010959 steel Substances 0.000 title claims abstract description 68
- 238000003466 welding Methods 0.000 title claims abstract description 57
- 238000012360 testing method Methods 0.000 title claims abstract description 30
- 230000006835 compression Effects 0.000 claims abstract description 44
- 238000007906 compression Methods 0.000 claims abstract description 44
- 230000001360 synchronised effect Effects 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims abstract description 8
- 238000003754 machining Methods 0.000 claims abstract description 5
- 230000000712 assembly Effects 0.000 claims description 11
- 238000000429 assembly Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 6
- 239000007789 gas Substances 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 229910052786 argon Inorganic materials 0.000 abstract description 3
- 239000001307 helium Substances 0.000 abstract description 3
- 229910052734 helium Inorganic materials 0.000 abstract description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to ratio-frequency welding test bench installation, be particularly applicable to the band steel welding pressurizing unit of a kind of ratio-frequency welding testing stand of the Shielding gas such as argon, nitrogen and helium; It is characterized in that: its band steel welding pressurizing unit is made up of support, round and smooth groove and extruding swivel mount, the round and smooth groove that symmetrical machining two is concentric in the two sides that two stands is relative, installs and forms by two hemiconcentric rotation support bodys the extruding swivel mount rotated along round and smooth groove in two round and smooth grooves; Two corresponding with band steel both sides, top, position, the end rotate symmetry on support body and have two electronic compression rollers, two electronic pinch rolls and two backing rolls; Two rotate support body bottom symmetrical and have two two Worm and worm-wheel gearings rotating support body synchronous rotary; Realize the rotation of symmetrical strip winding steel contact hemline 0 ~ 10 °.The present invention is not only reasonable in design, novel structure, and it is firm to have simple and practical, clamping band steel, simple to operate, easy to maintenance, safe and reliable, meet the features such as technological requirement completely.
Description
Technical field
The invention belongs to ratio-frequency welding test bench installation, be particularly applicable to the single protective gas such as argon gas, nitrogen and helium or become by argon, nitrogen and helium mix the band steel of a kind of ratio-frequency welding testing stand of Shielding gas to weld pressurizing unit.
Background technology
As everyone knows, when production line of high-frequency welded tube is welded welded tube, certain is when adopting different process or new steel grade, need on ratio-frequency welding testing stand, the high-frequency welding of simulated test two band steel protective gas under squeezed state, one of technical requirement during its test is: two band steel parallel alignment of its welding enter compression roller, and unstability flexural deformation when pinching backing roll up and down to prevent the welding of band steel from extruding; Its technical requirement two, two band steel of the welding when high frequency extruding welding symmetrical strip winding steel contact hemline should be able to rotate 0 ~ 10 °; Three of its technical requirement is: must realize the welding of permanent extruding force and the welding of permanent amount of compression.Therefore, according to the technical requirement of above-mentioned ratio-frequency welding bench run, research and development are applicable to the band steel welding pressurizing unit of a kind of ratio-frequency welding testing stand of ratio-frequency welding testing stand, are very necessary.
Summary of the invention
The present invention is intended to the above-mentioned technical requirement according to ratio-frequency welding testing stand; Grasp not only scientific and reasonable but also simulated test like clockwork technical requirement to set out; And a kind of band steel welding pressurizing unit of ratio-frequency welding testing stand is provided; This band steel welding pressurizing unit is not only reasonable in design, novel structure, and it is firm to have simple and practical, clamping band steel, simple to operate, easy to maintenance, safe and reliable, meet the features such as technological requirement completely.
The object of the invention is to adopt following technical scheme to realize: the band steel welding pressurizing unit of described ratio-frequency welding testing stand, it is characterized in that: described band steel welding pressurizing unit is made up of support, round and smooth groove and extruding swivel mount, symmetrical installing two stands on the basis, indoor of ratio-frequency welding testing stand, the round and smooth groove that symmetrical machining two is concentric in the two sides that two stands is relative, installs the extruding swivel mount rotated along round and smooth groove in described two round and smooth grooves; Described extruding swivel mount is made up of two hemiconcentric rotation support bodys; Two corresponding with processed band steel two side position rotate symmetry on support body and install two compression rollers; Described each compression roller is connected in compression roller box by extrusion roll shaft; Two the compression roller box tops corresponding with band steel top side location fix two respectively by bolt and pinches framework, described each frame body pinching framework and be " mouth " font cross section, pinch framework end face and pinch hydraulic jack in this by bolt installing, described pinch hydraulic jack stretch out rod end through pinching framework end face and to pinch slide block hinged; By pinch hydraulic jack drive pinch slide block longitudinally slide assemblies pinching upper and lower slip in framework; Install in described pinching in slide block and be bonded in by pinching motor driving the pinch roll pinched on roll shaft; Pinch motor by two and drive two pinch rolls, realize two pinch rolls pinching band steel; Described compression roller box is the box body that the open at one end other end is closed, this opening end is towards band steel, described compression roller box is connected with extruding slide block by keyed jointing mode, described extruding slide block inner bottom surface is provided with the chute slided for compression roller box, realizes the unidirectional slip of this compression roller box towards band steel side; Pressure sensor is installed between described compression roller box blind end and extruding slide block; Corresponding with band steel basal surface position two extrudes on the uncovered end wall of slide block and connect two backing rolls by two supporting rollers are symmetrical; Two horizontal slide assemblies are arranged with between described both sides, extruding slide block bottom and this rotation support body both sides; Install on this rotation support body and drive extruding slide block to move component slippage along two sideslips by electronic screw mandrel screw transmission component; Drive the compression roller in extruding slide block by electronic screw mandrel screw transmission component, realize the extruding to band steel both sides; Two Worm and worm-wheel gearings of bottom symmetrical installing driving two the rotation support body synchronous rotary of support body side are rotated in two; Connected by adapter sleeve between two described Worm and worm-wheel gearings; Driven the synchronous rotary of two hemiconcentric rotation support bodys by two Worm and worm-wheel gearings, realize the rotation of symmetrical strip winding steel contact hemline 0 ~ 10 °.
Principle of the present invention and feature are described below:
The present invention is the technical requirement according to ratio-frequency welding testing stand simulated test, is used for two band steel to extrude the technical scheme welded together.First two band steel end part aligning entered by two stands, round and smooth groove and the device that forms of extruding swivel mount, the round and smooth groove that symmetrical machining two is concentric in the two sides that two stands is relative, installs the extruding swivel mount rotated along round and smooth groove in its two round and smooth groove; Its extruding swivel mount is made up of two hemiconcentric rotation support bodys; Two corresponding with processed band steel both sides, top, position, the end rotate and symmetrically on support body installs two electronic compression rollers, and two electronic pinch rolls and two prop up backing rolls; Wherein each pinch roll also drives moving up and down of pinch roll by pinching hydraulic jack.Two Worm and worm-wheel gearings of bottom symmetrical installing driving two the rotation support body synchronous rotary of support body side are rotated in two; Connected by adapter sleeve between two described Worm and worm-wheel gearings; Driven the synchronous rotary of two hemiconcentric rotation support bodys by two Worm and worm-wheel gearings, realize the rotation of symmetrical strip winding steel contact hemline 0 ~ 10 °.Two pinch cylinder pressure pressure and make pinch roll and backing roll clamp two band steel, and both sides extruding motor drives compression roller that two band steel are close to, and now can set amount of compression or extruding force value, then drive extruding motor straight to reach extruding force or the amount of compression of requirement; Last band steel inclination angle on request, rotates two worm screws, makes the two band steel strip winding steel base contacts wire clamped rotate to 0 ~ 10 ° of band steel inclination angle required.After more than adjusting, just can start welding machine simultaneously and pinch motor, according to the rules welding parameter extruding welding strip.Feature of the present invention is the technical requirement of the simulated test meeting ratio-frequency welding testing stand completely, and unstability flexural deformation when pinching backing roll up and down to prevent the welding of band steel from extruding; When high frequency extruding welding, two band steel symmetrical strip winding steel contact hemline can rotate 0 ~ 10 ° simultaneously; Realize the welding of permanent extruding force to weld with permanent amount of compression.
The comprehensive above technical scheme taked, realizes object of the present invention.
Therefore, the invention has the beneficial effects as follows: not only reasonable in design, novel structure, and it is firm to have simple and practical, clamping band steel, simple to operate, easy to maintenance, safe and reliable, meet the features such as technological requirement completely.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
The present invention has four width accompanying drawings, wherein:
Accompanying drawing 1 is the top view of the specific embodiment of the invention;
Accompanying drawing 2 is the sectional views along A-A line in Fig. 1;
Accompanying drawing 3 is M direction view in Fig. 1;
Accompanying drawing 4 is the amplification views along B-B line in Fig. 2.
In figure: 1, compression roller, 2, backing roll, 3, pinch roll, 4, support, 5, round and smooth groove, 6, worm screw, 7, adapter sleeve, 8, vertical sliding part, 9, pinch roll shaft, 10, pinch cylinder pressure, 11, pinch framework, 12, pinch slide block, 13, pinch motor, 14, compression roller box, 15, pressure sensor, 16, extruding slide block, 17, screw, 18, extruding motor, 19, rotate support body, 20, screw mandrel, 21, sector gear, 22, gear shaft, 23, worm bearing, 24, worm gear, 25, expansion sleeve, 26, horizontal slide assemblies, 27, band steel, 28, counter.
Detailed description of the invention
Specific embodiments of the invention shown in Fig. 1,2,3,4, it is the band steel welding pressurizing unit installed on ratio-frequency welding testing stand, its structure is made up of support 4, round and smooth groove 5 and extruding swivel mount, symmetrical installing two stands 4 on the basis, indoor of ratio-frequency welding testing stand, the round and smooth groove 5 that symmetrical machining two is concentric in the two sides that two stands 4 is relative, installs the extruding swivel mount rotated along round and smooth groove in described two round and smooth grooves 5; Described extruding swivel mount is made up of two hemiconcentric rotation support bodys 19; Two corresponding with processed band steel 27 liang of side positions rotate symmetry on support body 19 and install two compression rollers 1; Described each compression roller 1 is connected in compression roller box 14 by extrusion roll shaft; Two compression roller box 14 end faces corresponding with band steel 27 top side location fix two respectively by bolt and pinches framework 11, described eachly pinch the frame body that framework 11 is " mouth " font cross section, pinch framework 11 end face and pinch hydraulic jack 10 in this by bolt installing, described pinch hydraulic jack 10 stretch out rod end through pinching framework 11 end face and pinching slide block 12, hinged; By pinch hydraulic jack 10 drive pinch slide block 12 longitudinally slide assemblies pinching upper and lower slip in framework 11; Be bonded in by pinching motor 13 driving the pinch roll 3 pinched on roll shaft 9 in the described installing in slide block 12 that pinches; Pinch motor 13 by two and drive two pinch rolls 3, realize two pinch rolls 3 pinching band steel 27; The box body that described compression roller box 14 is closed for the open at one end other end, this opening end is towards band steel 27, described compression roller box 14 is connected with extruding slide block 16 by keyed jointing mode, described extruding slide block 16 inner bottom surface is provided with the chute slided for compression roller box 14, realizes the unidirectional slip of this compression roller box 14 towards band steel 27 side; Pressure sensor 15 is installed between described compression roller box 14 blind end and extruding slide block 16; Corresponding with band steel 27 basal surface position two extrudes on the uncovered end wall of slide block 16 and connect two backing rolls 2 by two supporting rollers are symmetrical; Two horizontal slide assemblies 26 are arranged with between described both sides, extruding slide block 16 bottom and this rotation support body 19 both sides; Install on this rotation support body 19 and drive extruding slide block 16 to slide along two horizontal slide assemblies 26 by electronic screw mandrel screw transmission component; Drive the compression roller 1 in extruding slide block 16 by electronic screw mandrel screw transmission component, realize the extruding to band steel 27 both sides; Two Worm and worm-wheel gearings of bottom symmetrical installing driving two rotation support body 19 synchronous rotary of support body 19 side are rotated in two; Connected by adapter sleeve 7 between two described Worm and worm-wheel gearings; Driven the synchronous rotary of two hemiconcentric rotation support bodys 19 by two Worm and worm-wheel gearings, realize the rotation that symmetrical strip winding steel 27 contacts hemline 0 ~ 10 °.
Two lateral surfaces of each described rotation support body 19 are arranged with and coordinate with in round and smooth groove 5 two circular bosses rotated.
Described compression roller box 14 is extrude on two medial surfaces of slide block 16 respectively by being connected in compression roller box 14 liang of outsides with the keyed jointing mode of extruding slide block 16.
Described each electronic screw mandrel screw transmission component forms by extruding motor 18, screw mandrel 20 and screw 17, one end of described screw mandrel 20 stretches outside support body through rotating support body 19, the leading screw axle head stretched outside support body is connected with extruding motor 18, between described rotation support body 19 and screw mandrel 20, installs bearing; The other end of this screw mandrel 20 stretches in extruding slide block 16 through screw 17; Described screw 17 is fixed by screws on extruding slide block 16 lateral surface.
Described longitudinal sliding motion assembly is made up of the vertical sliding part 8 of both sides, described pinch the upright two sides of framework 11 and pinch to be arranged with every side between slide block 12 two sides by the vertical sliding part 8 indulging the both sides that draw runner and vertical runner form.
Described each horizontal slide assemblies 26 is made up of cross slider and sideslip groove.
Described each Worm and worm-wheel gearing is by sector gear 21, gear shaft 22, worm gear 24, expansion sleeve 25, worm screw 6, worm bearing 23 sum counter 28 forms, sector gear 21 is connected by screw bottom described rotation support body 19, the gear shaft 22 be meshed with this sector gear 21, one end of described gear shaft 22 is connected in the support 4 of side, the other end of this gear shaft 22 stretches outside frame through the support 4 of opposite side, worm gear 24 and expansion sleeve 25 is sequentially connected on gear shaft 22 axle head stretched outside frame, described worm gear 24 is meshed with worm screw 6, the two ends of described worm screw 6 are supported by two worm bearings 23 respectively and stretch outside two worm bearings 23, described each worm bearing 23 is fixed on support 4 by screw, inside the worm screw 6 stretched outside worm bearing 23, axle head is connected with another Worm and worm-wheel gearing by adapter sleeve 7, outside the worm screw 6 stretched outside worm bearing 23, axle head installs counter 28, and manually drive and realize worm screw 6 and rotate.
The above; be only preferably detailed description of the invention of the present invention; but protection scope of the present invention is not limited thereto; allly be familiar with those skilled in the art in technical scope disclosed by the invention, be equal to replace or change according to technical scheme of the present invention and design of the present invention thereof and all should be encompassed within protection scope of the present invention.
Claims (7)
1. the band steel welding pressurizing unit of a ratio-frequency welding testing stand, it is characterized in that: described band steel welding pressurizing unit is made up of support (4), round and smooth groove (5) and extruding swivel mount, symmetrical installing two stands (4) on the basis, indoor of ratio-frequency welding testing stand, the round and smooth groove (5) that symmetrical machining two is concentric in the two sides that two stands (4) is relative, installs the extruding swivel mount rotated along round and smooth groove in described two round and smooth grooves (5); Described extruding swivel mount is made up of two hemiconcentric rotation support bodys (19); Two corresponding with processed band steel (27) two side position rotate the upper symmetry of support body (19) and install two compression rollers (1); Described each compression roller (1) is connected in compression roller box (14) by extrusion roll shaft; Two compression roller box (14) end faces corresponding with band steel (27) top side location fix two respectively by bolt and pinches framework (11), described eachly pinch the frame body that framework (11) is " mouth " font cross section, pinch framework (11) end face and pinch hydraulic jack (10) in this by bolt installing, described pinch hydraulic jack (10) stretch out rod end through pinching framework (11) end face and to pinch slide block (12) hinged; By pinch hydraulic jack (10) drive pinch slide block (12) longitudinally slide assemblies pinching upper and lower slip in framework (11); Be bonded in by pinching motor (13) driving the pinch roll (3) pinched on roll shaft (9) in the described installing in slide block (12) that pinches; Pinch motor (13) by two and drive two pinch rolls (3), realize two pinch rolls (3) pinching band steel (27); The box body that described compression roller box (14) is closed for the open at one end other end, this opening end is towards band steel (27), described compression roller box (14) is connected with extruding slide block (16) by keyed jointing mode, described extruding slide block (16) inner bottom surface is provided with the chute slided for compression roller box (14), realizes the unidirectional slip of this compression roller box (14) towards band steel (27) side; Pressure sensor (15) is installed between described compression roller box (14) blind end and extruding slide block (16); Corresponding with band steel (27) basal surface position two extrudes on slide block (16) uncovered end wall and connect two backing rolls (2) by two supporting rollers are symmetrical; Two horizontal slide assemblies (26) are arranged with between described extruding slide block (16) both sides, bottom and this rotation support body (19) both sides; Extruding slide block (16) is driven to slide along two horizontal slide assemblies (26) in the upper installing of this rotation support body (19) by electronic screw mandrel screw transmission component; Drive the compression roller (1) in extruding slide block (16) by electronic screw mandrel screw transmission component, realize the extruding to band steel (27) both sides; Two Worm and worm-wheel gearings of bottom symmetrical installing driving two rotation support body (19) synchronous rotary of support body (19) side are rotated in two; Connected by adapter sleeve (7) between two described Worm and worm-wheel gearings; Driven the synchronous rotary of two hemiconcentric rotation support bodys (19) by two Worm and worm-wheel gearings, realize the rotation of symmetrical strip winding steel (27) contact hemline 0 ~ 10 °.
2. by the band steel welding pressurizing unit of ratio-frequency welding testing stand according to claim 1, it is characterized in that: two lateral surfaces of each described rotation support body (19) are arranged with and coordinate with in round and smooth groove (5) two circular bosses rotated.
3. by ratio-frequency welding testing stand according to claim 1 band steel welding pressurizing unit, it is characterized in that: described compression roller box (14) with extruding slide block (16) keyed jointing mode be outside compression roller box (14) two respectively by be connected to extrude slide block (16) two medial surfaces on.
4. by the band steel welding pressurizing unit of ratio-frequency welding testing stand according to claim 1, it is characterized in that: described each electronic screw mandrel screw transmission component forms by extruding motor (18), screw mandrel (20) and screw (17), one end of described screw mandrel (20) stretches outside support body through rotating support body (19), the leading screw axle head stretched outside support body is connected with extruding motor (18), between described rotation support body (19) and screw mandrel (20), installs bearing; The other end of this screw mandrel (20) stretches in extruding slide block (16) through screw (17); Described screw (17) is fixed by screws on extruding slide block (16) lateral surface.
5. by the band steel welding pressurizing unit of ratio-frequency welding testing stand according to claim 1, it is characterized in that: described longitudinal sliding motion assembly is made up of the vertical sliding part (8) of both sides, described pinch the upright two sides of framework (11) and pinch to be arranged with every side between slide block (12) two sides by the vertical sliding part (8) indulging the both sides that draw runner and vertical runner form.
6., by the band steel welding pressurizing unit of ratio-frequency welding testing stand according to claim 1, it is characterized in that: described each horizontal slide assemblies (26) is made up of cross slider and sideslip groove.
7. by the band steel welding pressurizing unit of ratio-frequency welding testing stand according to claim 1, it is characterized in that: described each Worm and worm-wheel gearing is by sector gear (21), gear shaft (22), worm gear (24), expansion sleeve (25), worm screw (6), worm bearing (23) sum counter (28) forms, described rotation support body (19) bottom is connected by screw sector gear (21), the gear shaft (22) be meshed with this sector gear (21), one end of described gear shaft (22) is connected in the support (4) of side, the other end of this gear shaft (22) stretches outside frame through the support (4) of opposite side, worm gear (24) and expansion sleeve (25) is sequentially connected in stretching on the gear shaft outside frame (22) axle head, described worm gear (24) is meshed with worm screw (6), the two ends of described worm screw (6) are supported by two worm bearings (23) respectively and stretch two worm bearings (23) outward, described each worm bearing (23) is fixed on support (4) by screw, be connected with another Worm and worm-wheel gearing by adapter sleeve (7) on the axle head of worm bearing (23) worm screw outward (6) inner side in stretching, on the axle head of worm bearing (23) worm screw outward (6) outside, counter (28) is installed in stretching, and manually driving realizes worm screw (6) rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310350027.9A CN103433638B (en) | 2013-08-12 | 2013-08-12 | The band steel welding pressurizing unit of ratio-frequency welding testing stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310350027.9A CN103433638B (en) | 2013-08-12 | 2013-08-12 | The band steel welding pressurizing unit of ratio-frequency welding testing stand |
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| Publication Number | Publication Date |
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| CN103433638A CN103433638A (en) | 2013-12-11 |
| CN103433638B true CN103433638B (en) | 2015-09-09 |
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| CN201310350027.9A Expired - Fee Related CN103433638B (en) | 2013-08-12 | 2013-08-12 | The band steel welding pressurizing unit of ratio-frequency welding testing stand |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105676900A (en) * | 2016-01-14 | 2016-06-15 | 大连三高集团有限公司 | System for automatically controlling high-frequency welding extrusion device |
| CN112474869B (en) * | 2020-10-31 | 2023-02-28 | 济钢集团有限公司 | Three-roller extrusion device for welding sharp-angle square steel |
Citations (6)
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|---|---|---|---|---|
| CN2476359Y (en) * | 2001-04-18 | 2002-02-13 | 林德勤 | Strong spring square roller frame |
| KR20030052133A (en) * | 2001-12-20 | 2003-06-26 | 주식회사 포스코 | Apparatus for changing and fixing the welding wheels of strip seam welding machine |
| KR100965113B1 (en) * | 2009-08-06 | 2010-06-23 | 전승환 | Flexible-cable machine |
| CN202539251U (en) * | 2012-05-22 | 2012-11-21 | 天津市静海县宝来工贸有限公司 | Device for locking side rollers of extrusion roller for high-frequency straight-seam welded pipes |
| CN202570891U (en) * | 2012-05-22 | 2012-12-05 | 天津市静海县宝来工贸有限公司 | Four-roller squeezing roller set for high-frequency longitudinal welded pipe |
| CN203459815U (en) * | 2013-08-12 | 2014-03-05 | 大连三高科技发展有限公司 | Band steel welding extrusion device for high frequency welding test bed |
-
2013
- 2013-08-12 CN CN201310350027.9A patent/CN103433638B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2476359Y (en) * | 2001-04-18 | 2002-02-13 | 林德勤 | Strong spring square roller frame |
| KR20030052133A (en) * | 2001-12-20 | 2003-06-26 | 주식회사 포스코 | Apparatus for changing and fixing the welding wheels of strip seam welding machine |
| KR100965113B1 (en) * | 2009-08-06 | 2010-06-23 | 전승환 | Flexible-cable machine |
| CN202539251U (en) * | 2012-05-22 | 2012-11-21 | 天津市静海县宝来工贸有限公司 | Device for locking side rollers of extrusion roller for high-frequency straight-seam welded pipes |
| CN202570891U (en) * | 2012-05-22 | 2012-12-05 | 天津市静海县宝来工贸有限公司 | Four-roller squeezing roller set for high-frequency longitudinal welded pipe |
| CN203459815U (en) * | 2013-08-12 | 2014-03-05 | 大连三高科技发展有限公司 | Band steel welding extrusion device for high frequency welding test bed |
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| CN103433638A (en) | 2013-12-11 |
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Granted publication date: 20150909 |