CN1490116A - Device for controlling deformation caused by welding stress by shock pressing - Google Patents
Device for controlling deformation caused by welding stress by shock pressing Download PDFInfo
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- CN1490116A CN1490116A CNA031325815A CN03132581A CN1490116A CN 1490116 A CN1490116 A CN 1490116A CN A031325815 A CNA031325815 A CN A031325815A CN 03132581 A CN03132581 A CN 03132581A CN 1490116 A CN1490116 A CN 1490116A
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Abstract
A weld-following impacting-rolling apparatus for controlling the welding stress deformation of thin metal is disclosed, which can decrease the welding stress and deformation, fining crystal grains and preventing thermal crack. It is composed of air pump, pressure releasing valve, relay, presure stabilizing air accumulator, speed regulating valve and impacting-rolling head, all of which are connected according to invented logic. Its advantages are high effect, small size, high reliability and long service life.
Description
Technical field: the control device that the present invention relates to the thin-wall metal welding stress deformation.This device can solve simultaneously and reduce welding stress, distortion, crystal grain thinning, prevents multinomial technical problems such as HOT CRACK FOR WELDING P.
Background technology: the welding of high intensity thinner tube material, fire check appears in stress deformation greatly, easily, and postwelding needs orthopedic, heat treatment, increases production cost, influences product quality, even waste product occurs.For addressing the above problem, once proposed both at home and abroad with weldering roll, static state and dynamic temperature difference stretches, with several different methods such as weldering hammering and realize the device of these methods, their ubiquity production efficiency is low, cost is higher, working environment is relatively poor, particularly with the weldering rolled-on method, have that equipment is huge, the impact-rolling size of wheel is big and welding gun interferes with each other, is easy to generate and beats the arc phenomenon, is difficult to actual production.Exist the vibrations of tup beat bigger with the weldering ballistic method, need to increase the shortcoming of guiding mechanism.
Summary of the invention: the device that the objective of the invention is to develop a kind of weld with trailing impactive rolling control welding stress deformation, it have easy to use, cost is low, joint quality good, can control straight weld, the closed weld stress deformation can be controlled again, and the characteristics of HOT CRACK FOR WELDING P can be effectively prevented to produce.The present invention is made up of air pump 1, pressure-reducing valve 2, voltage stabilizing gas receiver 3, relay 4, flow speed control valve 5, near-end gas receiver 6 and impact-rolling head 7; The port of export of air pump 1 is fixedlyed connected with the arrival end of pressure-reducing valve 2, the port of export of pressure-reducing valve 2 is connected with an end of relay 4, between pressure-reducing valve 2 and relay 4, be fixed with voltage stabilizing gas receiver 3, the going into to hold of the other end of relay 4 and flow speed control valve 5 fixedlys connected, going out between end and the impact-rolling head 7 of flow speed control valve 5 fixedlyed connected by pipeline, is fixed with near-end gas receiver 6 on the pipeline between flow speed control valve 5 and the impact-rolling head 7.The present invention has that equipment is simply small and exquisite, working stability is reliable, long service life, can be with thin-walled material welding residual stress and Deformation control at about 1/10 of conventional welded condition, also surperficial tension can be become compressive stress state, prevent the advantage that HOT CRACK FOR WELDING P produces.
Description of drawings: Fig. 1 is an overall structure schematic diagram of the present invention, Fig. 2 is the structural representation of impact-rolling head 7, Fig. 3 is the structural representation of the impact-rolling front-wheel 28 on the impact-rolling head 7, and Fig. 4 is the structural representation of the impact-rolling trailing wheel 16 on the impact-rolling head 7.
The specific embodiment: the present embodiment (see figure 1) is made up of air pump 1, pressure-reducing valve 2, voltage stabilizing gas receiver 3, relay 4, flow speed control valve 5, near-end gas receiver 6 and impact-rolling head 7; The port of export of air pump 1 is fixedlyed connected with the input of pressure-reducing valve 2, the output of pressure-reducing valve 2 is connected with an end of relay 4, between pressure-reducing valve 2 and relay 4, be fixed with voltage stabilizing gas receiver 3, the going into to hold of the other end of relay 4 and flow speed control valve 5 fixedlys connected, going out between end and the impact-rolling head 7 of flow speed control valve 5 fixedlyed connected by pipeline, is fixed with near-end gas receiver 6 on the pipeline between flow speed control valve 5 and the impact-rolling head 7.(see figure 2) impact-rolling head 7 by pneumatic hammer support 8, vibration proof mounting 9, piston 10, impact transmission rod 11, upper cylinder half exhaust fairing 12, steam vent 22, compression spring 23, guiding clamping fork 25, torsion spring 26, impact-rolling wheel seat 27, impact-rolling front-wheel 28 are formed under cylinder exhaust fairing 13, bearing pin 14, impact-rolling wheel shaft 15, impact-rolling trailing wheel 16, shock-absorbing spring 17, pneumatic hammer 18, control air valve 19, cylinder 20, cylinder upper air-vent 21, the cylinder down; Pneumatic hammer 18 is fixed on the middle part in the pneumatic hammer support 8, be fixed with vibration proof mounting 9 in the pneumatic hammer support 8 on pneumatic hammer 18 tops, be provided with shock-absorbing spring 17 between the top cover of the top of vibration proof mounting 9 and pneumatic hammer support 8, the bottom of pneumatic hammer 18 is fixed with cylinder 20, the top of cylinder 20 is provided with control air valve 19, the inside of cylinder 20 is provided with piston 10, the center of the cylinder 20 of piston 10 bottoms is provided with impacts transmission rod 11, be fixed with upper cylinder half exhaust fairing 12 between the outer lower portion of cylinder 20 and the pneumatic hammer support 8, impact transmission rod 11 and be provided with down cylinder exhaust fairing 13, impact transmission rod 11 between the bottom of following cylinder exhaust fairing 13 and cylinder 20 is provided with compression spring 23, the lower end of cylinder 20 is provided with steam vent 22 under the cylinder, the side of cylinder 20 is provided with cylinder upper air-vent 21, cylinder upper air-vent 21 is connected with hole on the pneumatic hammer support 8, the lower end of impacting transmission rod 11 is connected by the middle part of bearing pin 14 with impact-rolling wheel seat 27, the rear and front end of impact-rolling wheel seat 27 is fixed with guiding clamping fork 25 respectively, be fixed with impact-rolling front-wheel 28 by impact-rolling wheel shaft 15 on the guiding clamping fork 25 of front end, be fixed with impact-rolling trailing wheel 16 by impact-rolling wheel shaft 15 on the guiding clamping fork 25 of rear end, bearing pin 14 is provided with torsion spring 26 with the guiding clamping fork 25 of impact-rolling wheel seat 27 rear and front ends.The curved surface of (see figure 3) impact-rolling front-wheel 28 is provided with circumferential groove 28-1.The curved surface of (see figure 4) impact-rolling trailing wheel 16 is provided with hoop projection 16-1.
The course of work: piston 10 moves downward impact transmission rod 11 and impact-rolling wheel seat 27 applies an impulsive force, this impulsive force passes to impact-rolling trailing wheel 16, impact-rolling front-wheel 28 by the mating surface of impact-rolling wheel seat 27 and impact-rolling trailing wheel 16, impact-rolling front-wheel 28, finally affacts on the workpiece 30.At this moment impact-rolling wheel is by on the huge impact power surface that is pressed in workpiece 30 tightly, owing to there is the relative motion of horizontal direction between workpiece 30 and impact-rolling trailing wheel 16, the impact-rolling front-wheel 28, adds the combined process that rolls so this is an impact; Working time of collision is very of short duration, when impact process finishes, under the effect of impact reactive force, impact-rolling wheel seat 27 and impact transmission rod 11 pop up, under the pressure effect of torsion spring 26, impact-rolling trailing wheel 16, impact-rolling front-wheel 28 still are crushed on workpiece 30 surfaces with its impact-rolling wheel seat 27 disengagings, and roll forward in company with the motion of whole impact-rolling mechanism (or workpiece).From the above, under the acting in conjunction of stage clip pressure and impulsive force reaction force, impact transmission rod 11 and impact-rolling wheel seat 27 are actually is doing harmonic moving, and impact-rolling trailing wheel 16, impact-rolling front-wheel 28 stop an intermittent movement of changeing doing one, but because the operating frequency higher (50-100Hz) of mechanism, working time of collision is very short, so during mechanism's work, detect by an unaided eye the rotation that sensation impact-rolling trailing wheel 16, impact-rolling front-wheel 28 are not stopping.Impact-rolling front-wheel 28, its shape is an indent, it is followed in the back of welding arc 29 during work, and is pressed in the toe of weld position of weld seam both sides tightly.When impact-rolling wheel seat 27 impacted downwards, impact-rolling front-wheel 28 just applied an impact-rolling power to toe of weld.By the contact-making surface shape of front-wheel and workpiece as can be known, this impulsive force can be decomposed into one to vertical component of lower edge wheel Zhou Qianhou extruding and one to the transverse component of lower edge front-wheel inner concave to the extruding of weld seam center.Because the zone of front-wheel impact-rolling power effect is nearer from welding pool, temperature is higher relatively, and the inboard metal temperature of front-wheel impact-rolling active region is higher than the outside, metal in its active region is more helped in the horizontal to the weld seam center flow, like this when front-wheel impacts downwards, just the metal that is in brittle temperature range is applied a horizontal racking strain, thereby offset the elongation strain of energy fracturing, reach the purpose that prevents HOT CRACK FOR WELDING P.Impact-rolling trailing wheel 16, its shape is an evagination, during work it tightly be pressed in the weld seam position, when impact-rolling wheel seat 27 impacts downwards, impact-rolling trailing wheel 16 is just given impact-rolling power of weld seam, by the contact-making surface shape of trailing wheel and workpiece as can be known, this impulsive force can be decomposed into one downwards also along vertical component of taking turns the extruding of Zhou Fangxiang front and back, with a transverse component downward and extruding along the trailing wheel evagination towards the weld seam both sides, because the vertical and horizontal radius of curvature there are differences, transverse component is greater than vertical component.Like this, just the weld metal cooling can be shunk the vertical, horizontal that produces and all fully extend, reduce welding residual stress, reduce welding deformation: both can reduce dull and stereotyped straight weld and vertically shrink the vertical deflection deformation that causes; Can control dull and stereotyped ring seal weld seam again and shrink the shape of a saddle wave transformation that causes, and housing ring seal weld seam shrinks the collapse-deformation that causes.
Claims (4)
1, the device of weld with trailing impactive rolling control welding stress deformation, it is made up of air pump (1), pressure-reducing valve (2), voltage stabilizing gas receiver (3), relay (4), flow speed control valve (5), near-end gas receiver (6) and impact-rolling head (7); The port of export that it is characterized in that air pump (1) is fixedlyed connected with the arrival end of pressure-reducing valve (2), the port of export of pressure-reducing valve (2) is connected with an end of relay (4), between pressure-reducing valve (2) and relay (4), be fixed with voltage stabilizing gas receiver (3), the going into to hold of the other end of relay (4) and flow speed control valve (5) fixedlys connected, going out between end and the impact-rolling head (7) of flow speed control valve (5) fixedlyed connected by pipeline, is fixed with near-end gas receiver (6) on the pipeline between flow speed control valve (5) and the impact-rolling head (7).
2, the device of weld with trailing impactive rolling control welding stress deformation according to claim 1 is characterized in that impact-rolling head (7) is by pneumatic hammer support (8), vibration proof mounting (9), piston (10), impact transmission rod (11), upper cylinder half exhaust fairing (12), following cylinder exhaust fairing (13), bearing pin (14), impact-rolling wheel shaft (15), impact-rolling trailing wheel (16), shock-absorbing spring (17), pneumatic hammer (18), control air valve (19), cylinder (20), cylinder upper air-vent (21), steam vent under the cylinder (22), compression spring (23), guiding clamping fork (25), torsion spring (26), impact-rolling wheel seat (27), impact-rolling front-wheel (28) is formed; Pneumatic hammer (18) is fixed on the middle part in the pneumatic hammer support (8), be fixed with vibration proof mounting (9) in the pneumatic hammer support (8) on pneumatic hammer (18) top, be provided with shock-absorbing spring (17) between the top cover of the top of vibration proof mounting (9) and pneumatic hammer support (8), the bottom of pneumatic hammer (18) is fixed with cylinder (20), the top of cylinder (20) is provided with control air valve (19), the inside of cylinder (20) is provided with piston (10), the center of the cylinder (20) of piston (10) bottom is provided with impacts transmission rod (11), be fixed with upper cylinder half exhaust fairing (12) between the outer lower portion of cylinder (20) and the pneumatic hammer support (8), impact transmission rod (11) and be provided with down cylinder exhaust fairing (13), impact transmission rod (11) between the bottom of following cylinder exhaust fairing (13) and cylinder (20) is provided with compression spring (23), the lower end of cylinder (20) is provided with steam vent under the cylinder (22), the side of cylinder (20) is provided with cylinder upper air-vent (21), cylinder upper air-vent (21) is connected with hole on the pneumatic hammer support (8), the lower end of impacting transmission rod (11) is connected by the middle part of bearing pin (14) with impact-rolling wheel seat (27), the rear and front end of impact-rolling wheel seat (27) is fixed with guiding clamping fork (25) respectively, the guiding clamping fork (25) of front end is gone up and is fixed with impact-rolling front-wheel (28) by impact-rolling wheel shaft (15), the guiding clamping fork (25) of rear end is gone up and is fixed with impact-rolling trailing wheel (16) by impact-rolling wheel shaft (15), and bearing pin (14) is provided with torsion spring (26) with the guiding clamping fork (25) of impact-rolling wheel seat (27) rear and front end.
3, the device of weld with trailing impactive rolling control welding stress deformation according to claim 2 is characterized in that the curved surface of impact-rolling front-wheel (28) is provided with circumferential groove (28-1).
4, the device of weld with trailing impactive rolling control welding stress deformation according to claim 2 is characterized in that the curved surface of impact-rolling trailing wheel (16) is provided with hoop projection (16-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03132581 CN1240512C (en) | 2003-08-26 | 2003-08-26 | Device for controlling deformation caused by welding stress by shock pressing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03132581 CN1240512C (en) | 2003-08-26 | 2003-08-26 | Device for controlling deformation caused by welding stress by shock pressing |
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| Publication Number | Publication Date |
|---|---|
| CN1490116A true CN1490116A (en) | 2004-04-21 |
| CN1240512C CN1240512C (en) | 2006-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03132581 Expired - Fee Related CN1240512C (en) | 2003-08-26 | 2003-08-26 | Device for controlling deformation caused by welding stress by shock pressing |
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| CN (1) | CN1240512C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100413635C (en) * | 2006-09-29 | 2008-08-27 | 哈尔滨工业大学 | Apparatus for controlling welding stress deformation depending on welding friction extrusion |
| CN101138817B (en) * | 2007-10-12 | 2010-04-21 | 哈尔滨工业大学 | Device for controlling welding stress deformation along with soldering impact, revolving and extrusion pressing |
| CN102728972A (en) * | 2012-06-06 | 2012-10-17 | 辽宁工程技术大学 | Control device for residual stress and strain along with welding of titanium alloy |
| CN103017955A (en) * | 2012-11-29 | 2013-04-03 | 北京理工大学 | Manufacturing process and protection method for constant value residual stress welding test piece |
| CN105834564A (en) * | 2016-04-28 | 2016-08-10 | 柳州煜华科技有限公司 | Welding tool and clamp-free welding technical method using same |
| CN109834412A (en) * | 2019-04-01 | 2019-06-04 | 浙江工业大学 | A kind of welding point welding line shaping device with impact grinding during welding |
| CN110576238A (en) * | 2019-08-16 | 2019-12-17 | 中车青岛四方机车车辆股份有限公司 | Impact rolling machine head for welding and welding-following device |
-
2003
- 2003-08-26 CN CN 03132581 patent/CN1240512C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100413635C (en) * | 2006-09-29 | 2008-08-27 | 哈尔滨工业大学 | Apparatus for controlling welding stress deformation depending on welding friction extrusion |
| CN101138817B (en) * | 2007-10-12 | 2010-04-21 | 哈尔滨工业大学 | Device for controlling welding stress deformation along with soldering impact, revolving and extrusion pressing |
| CN102728972A (en) * | 2012-06-06 | 2012-10-17 | 辽宁工程技术大学 | Control device for residual stress and strain along with welding of titanium alloy |
| CN103017955A (en) * | 2012-11-29 | 2013-04-03 | 北京理工大学 | Manufacturing process and protection method for constant value residual stress welding test piece |
| CN105834564A (en) * | 2016-04-28 | 2016-08-10 | 柳州煜华科技有限公司 | Welding tool and clamp-free welding technical method using same |
| CN105834564B (en) * | 2016-04-28 | 2018-01-16 | 柳州煜华科技有限公司 | A kind of soldering appliance and using the instrument without fixture welding technique method |
| CN109834412A (en) * | 2019-04-01 | 2019-06-04 | 浙江工业大学 | A kind of welding point welding line shaping device with impact grinding during welding |
| CN110576238A (en) * | 2019-08-16 | 2019-12-17 | 中车青岛四方机车车辆股份有限公司 | Impact rolling machine head for welding and welding-following device |
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| Publication number | Publication date |
|---|---|
| CN1240512C (en) | 2006-02-08 |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Ming Inventor after: Gang Tie Inventor after: Fang Hongyuan Inventor after: Fan Chenglei Inventor after: Dong Zhibo Inventor after: Xu Wenli Inventor after: Wan Xin Inventor after: Liu Xuesong Inventor after: Yang Jianguo Inventor after: Wang Xiaoteng Inventor before: Li Ming Inventor before: Fang Hongyuan Inventor before: Fan Chenglei Inventor before: Xu Wenli Inventor before: Wan Xin Inventor before: Liu Xuesong Inventor before: Yang Jianguo Inventor before: Wang Xiaoteng |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI MING FANG HONGYUAN FAN CHENGLEI XU WENLI WAN XIN LIU XUESONG YANG JIANGUO WANG XIAOTENG TO: LI MING FANG HONGYUAN FAN CHENGLEI DONG ZHIBO XU WENLI WAN XIN LIU XUESONG YANG JIANGUO WANG XIAOTENG GANG TIE |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060208 Termination date: 20120826 |