CN104759769A - Welding tractor and automatic welding and cutting equipment - Google Patents
Welding tractor and automatic welding and cutting equipment Download PDFInfo
- Publication number
- CN104759769A CN104759769A CN201510205043.8A CN201510205043A CN104759769A CN 104759769 A CN104759769 A CN 104759769A CN 201510205043 A CN201510205043 A CN 201510205043A CN 104759769 A CN104759769 A CN 104759769A
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- Prior art keywords
- welding
- pressure beam
- tractor
- underbeam
- welding tractor
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a welding tractor (11). The welding tractor (11) comprises tractor wheel (3), a lower beam (6), carrier rollers (5), pressing beams (4), a welding machine (1) and compressing devices (2), wherein the tractor wheels (3) are arranged at the outer sides of end plates (7), the lower beam (6) is located between the end plate (7) and arranged in the middle, and a welding cushion plate (8) is arranged on the lower beam (6); the carrier rollers (5) comprise a first carrier roller (5-1) and a second carrier roller (5-2); the pressing beams (4) comprise a first pressing beam (4-1) and a second pressing beam (4-2) which are located at the front side and the rear side of the upper portion of the lower beam (6) respectively, and a welding joint operation area located above the welding cushion plate (8) is formed between the first pressing beam (4-1) and the second pressing beam (4-2); the welding machine is movably supported on the first pressing beam (4-1) and the second pressing beam (4-2) and corresponds to the welding joint operation area; the compressing devices (2) are arranged at the two ends of the pressing beams (4) and used for compressing or loosening the pressing beams (4). By means of the welding tractor, when the welding operation is conducted, the welding joint is easy to align to, the production efficiency can be improved remarkably, and the welding quality can be guaranteed. The invention further discloses automatic welding and cutting equipment provided with the welding tractor.
Description
Technical field
The present invention relates to technical field of welding equipment, particularly relate to dull and stereotyped vertical masonry joint splicing welding tractor.The invention still further relates to the automatic Mosaic and cutting equipment that are provided with described welding tractor.
Background technology
Along with the development of science and technology, automatic welding has become the trend of current welding profession development, existing automatic welding equipment type is various, has the intelligent automatic welding equipment of all direction multifunctional, also has the Simple automation welding equipment needing the simple function of design for a certain welding.
Intelligent automatic welding equipment utilizes various senior sensing element, and computer software systems realize identification, judge, detect in real time, and computing, automated programming, welding parameter store and automatically generate the function of welding log file.Generally, this type of automatic welding device development cost is high, is not suitable for the automatic welding of single welding function.
For dull and stereotyped vertical masonry joint splicing simple function automatic welding, usual employing be planer-type automatic welding equipment or cantilevered automatic welding equipment, namely welding machine is placed on fixing portal frame or cantilever, and welding machine can move reciprocatingly on the beam of portal frame or suspended wall, realizes linear automatic welding machine and connects.Dull and stereotyped consistent with welder track by adjusting, weld after clamping work pieces, the welding of single weld seam can only be realized, and carry out weld seam to punctual difficulty greatly, and wherein cantilevered automatic welding device is only applicable to width 1m and following plate sheet welding.
Though existing dull and stereotyped vertical masonry joint splicing equipment can reduce labor intensity to a certain extent, ensure welding stability, compared with human weld in production efficiency advantage not obvious.Reason is that this kind equipment all exists a common shortcoming, namely portal frame or overhanging beam are all in relatively-stationary state, can only be regulated when weld seam aimed at by welding gun by mobile flat board, make weld seam aligning difficulty large, production efficiency is low, and can only weld same weld seam at one time.
Therefore, the weld seam how reducing vertical masonry joint automatic welding equipment aims at difficulty, enhances productivity, and ensureing welding quality, is those skilled in the art's technical issues that need to address.
Summary of the invention
The object of this invention is to provide a kind of welding tractor.This welding tractor is easy to when performing welding operation aim at weld seam, can significantly improve production efficiency, and ensure welding quality.
Another object of the present invention is to provide a kind of automatic welding and cutting device being provided with described welding tractor.
For achieving the above object, the invention provides a kind of welding tractor, comprising:
Wheel, is located at outside end plate;
Underbeam, also arranges between two parties, which is provided with composition backing between end plate;
Carrying roller, comprises the first carrying roller and the second carrying roller, lays respectively at front side and the rear side of described underbeam;
Pressure beam, comprises the first pressure beam and the second pressure beam, lays respectively at the front side above described underbeam and rear side, form the weld seam operation area be positioned at above described composition backing between the two;
Welding machine, is set up in described first pressure beam and/or the second pressure beam movably, and corresponding described weld seam operation area;
Hold down gag, is located at described pressure beam two ends, for compressing or loosening described pressure beam.
Preferably, described first pressure beam is across above described first carrying roller and underbeam, and described second pressure beam is across above described second carrying roller and underbeam.
Preferably, described first pressure beam and the second pressure beam are hollow box-structure, and in up-narrow and down-wide isosceles trapezoid on cross section, the inclined-plane of both adjacent sides forms " V " shape weld seam operation area.
Preferably, the base plate of described first pressure beam and the second pressure beam is relative to side plate inside indentation certain distance in the height direction.
Preferably, described first pressure beam and the second pressure beam are respectively equipped with welded rails, and described welding machine is located at described welded rails by the wheel frame of advancing of its both sides.
Preferably, described hold down gag comprises:
Briquetting, its two ends laminate or are connected to described first pressure beam and the second pressure beam respectively;
Swing arm, be longitudinally threaded onto described briquetting, its upper end is provided with operating grip and is supported in the propelling position of described briquetting, and lower end is threaded and is threaded with described underbeam;
Spring, is set in described swing arm, and its lower end is supported in described underbeam, and upper end supports or be connected to the cross tie part between described first pressure beam and the second pressure beam.
For realizing another object above-mentioned, the present invention also provides a kind of welding and cutting device automatically, comprise pay-off and welding tractor, described welding tractor is the welding tractor described in above-mentioned any one, and it is located on the guide rail of both sides, described pay-off automatic welding district by described vehicle wheel frame.
Preferably, the front side in described pay-off automatic welding district is spot welding assembly section, and rear side is plasma cut district.
Preferably, multiple described welding tractor can aimed at adjustment respectively, weld simultaneously is arranged side by side with.
Welding tractor provided by the invention is travelling gantry structure, wheel is provided with outside its two ends, underbeam, carrying roller and pressure beam is provided with between two ends, wherein, carrying roller is for supporting flat board to be welded, and underbeam is for supporting the weld seam position of flat board to be welded, and pressure beam is positioned at above carrying roller and pressure beam, and carrying roller and press the space being formed between beam and can be used for flat board to pass through, flat board can be compressed by pressure beam or loosen by the hold down gag at two ends.During use, whole welding tractor is located on the guide rail of both sides, dull and stereotyped automatic welding district by vehicle wheel frame, can move around along guide rail.Like this, when welding, flat board is fixed by pressure beam by hold down gag, keep motionless, only need regulate the position of welding tractor that welding machine can be made to aim at weld seam, then perform weld job by welding machine along pressure beam length direction, welding can be completed, greatly reduce weld seam and aim at difficulty, improve production efficiency low, and welding quality stable is reliable.
In a kind of preferred version, described first pressure beam and the second pressure beam are hollow box-structure, and in up-narrow and down-wide isosceles trapezoid on cross section, the inclined-plane of both adjacent sides forms " V " shape weld seam operation area.Such structure, the bottom of pressure beam is wider on the one hand, flat board can be compressed in a big way, make dull and stereotyped location more stable, on the other hand, " V " shape weld seam operation area that both inclined-planes are formed has from top to bottom, the trend gathered gradually in the middle of two side direction, weld seam can be aimed at for welding machine and reliable reference is provided, because the opening of " V " shape weld seam operation area bottommost aimed at all the time by welding machine, as long as therefore mobile welding tractor, dull and stereotyped seam is made to be in the centre position of this opening, welding machine can be made accurately to aim at weld seam, thus reduce further weld seam aligning difficulty.
Automatic welding and cutting device provided by the present invention is provided with above-mentioned welding tractor, and because described welding tractor has above-mentioned technique effect, the automatic welding and cutting device being provided with this welding tractor also should have corresponding technique effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of detailed description of the invention of welding tractor provided by the present invention;
The A direction view that Fig. 2 is welding tractor shown in Fig. 1;
The C-C profile that Fig. 3 is welding tractor shown in Fig. 1;
Fig. 4 is the structural representation of automatic welding and cutting device provided by the present invention;
Fig. 5 is the partial enlarged drawing at welding equipment I position automatically shown in Fig. 4;
Fig. 6 is the partial enlarged drawing at welding equipment I I position automatically shown in Fig. 4;
Fig. 7 is the partial enlarged drawing at welding equipment I II position automatically shown in Fig. 4.
In figure:
1. welding machine 1-1. guide wheel 1-2. welding gun 2. hold down gag 2-1. briquetting 2-2. swing arm 2-3. spring 2-4. handle 2-5. advances position 2-6. connecting plate 3. wheel 4. to press beam 4-1. first to press beam 4-2. second to press beam 5. carrying roller 5-1. first carrying roller 5-2. second carrying roller 6. underbeam 7. end plate 8. composition backing 9. welded rails
10. automatic welding and cutting device 11. welding tractor 12. pay-off 12-1. motor 12-2. lower roll 12-3. top roll 12-4. hold down gag 13. guide rail 14. steel plate
Detailed description of the invention
In order to make those skilled in the art person understand the present invention program better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to the structural representation that Fig. 1,2,3, Fig. 1 is a kind of detailed description of the invention of welding tractor provided by the present invention; The A direction view that Fig. 2 is welding tractor shown in Fig. 1; The C-C profile that Fig. 3 is welding tractor shown in Fig. 1.
In a kind of detailed description of the invention, welding tractor provided by the invention is primarily of the composition such as welding machine 1, hold down gag 2, wheel 3, pressure beam 4, carrying roller 5, underbeam 6.
Wherein, wheel 3 is by outside wheel shaft and the rotating end plate 7 being arranged on dolly two ends of bearing, and before and after every side each one, totally four wheels 3, by wheel 3, welding tractor can move freely on the guide rail of both sides, automatic welding district.
Underbeam 6 is between the end plate 7 of dolly and placed in the middle arrange, its top is provided with the relatively little composition backing 8 of one piece of size in central position, and this backing plate is corresponding with following welding machine 1, for having cooperatively interacted weld job with welding machine 1.
Carrying roller 5 is parallel to underbeam 6, be divided into the first carrying roller 5-1 and the second carrying roller 5-2, two carrying rollers lay respectively at front side and the rear side (also can be called front carrying roller and rear carrying roller) of underbeam 6, are the circular-roll of hollow, and two ends are rotationally connected by rotating shaft and bearing and end plate 7.
Pressure beam 4 is also parallel to underbeam, be divided into the first pressure beam 4-1 and second pressure beam 4-2, lay respectively at the front side above underbeam 6 and rear side (also can be called front pressure beam and rear pressure beam), and carrying roller 5, form the clearance space that can pass for workpiece between underbeam 6.
First pressure beam 4-1 and second pressure beam 4-2 is hollow box-structure, sheet material welding is adopted to form, in up-narrow and down-wide isosceles trapezoid on cross section, its base plate is relative to side plate inside indentation certain distance in the height direction, first pressure beam 4-1 is across above the first carrying roller 5-1 and underbeam 6, second pressure beam 4-2 is across above the second carrying roller 5-2 and underbeam 6, and the inclined-plane of both adjacent sides forms " V " the shape weld seam operation area be positioned at above composition backing 8.
First pressure beam 4-1 and second pressure beam 4-2 is respectively equipped with welded rails 9 triangular in shape on cross section, welding machine 1 is single face welding and double face shaping welding machine, welded rails 9 is set up in by the guide wheel 1-1 that advances of its both sides, the guide wheel 1-1 that advances is provided with triangle annular groove, match with the shape of welded rails 9, its welding gun 1-2 aims at the opening of relative narrower bottom " V " shape weld seam operation area downwards.
Certainly, welding machine 1 also can monolaterally be erected on the first pressure beam 4-1 or second pressure beam 4-2, and as shown in Figure 7, only the first pressure beam 4-1 is provided with one I shape welded rails 9, and welding 1 is erected at separately on welded rails 9.
Pressure beam 4 two ends are located at by hold down gag 2, for compressing or loosening described pressure beam, form primarily of parts such as briquetting 2-1, swing arm 2-2, spring 2-3.
Briquetting 2-1 presses beam 4-2 top across at the first pressure beam 4-1 and second, and two ends laminate respectively (or connection) on the end face of the first pressure beam 4-1 and second pressure beam 4-2; Swing arm 2-2 is longitudinally threaded onto briquetting 2-1, and its upper end is provided with operating grip 2-4 and is supported in the propelling position 2-5 of briquetting, and screwed lower end is threaded with underbeam 6; Spring 2-3 is sleeved on swing arm 2-2, and its lower end is supported in underbeam 6, on the cross connecting plate 2-6 that upper end supports (or connection) between the first pressure beam 4-1 and second pressure beam 4-2 (see Fig. 6, Fig. 7).
The process such as aligning, clamping, welding of welding tractor is as follows: after welding tractor moves to welding position and aims at weld seam, hold down gag 2 is by pressure beam 6 workpiece pressing, realize welding clamping, welding tractor is arranged at presses on beam 4 and additionally arranged welded rails 9 on pressure beam 4, can realize automatic welding by automatic traveling mechanism.When welding tractor has welded, hold down gag 2 is regulated to be unclamped by pressure beam 4, when pressure beam 4 unclamps, pressure beam 4 completes with workpiece and is separated, and the composition backing 8 on underbeam 6 also completes with workpiece and is separated, and only has carrying roller 5 and absorption surface, because carrying roller 5 is designed to roller form, be beneficial to the relative movement of dolly and workpiece, utilize four wheels 3 outside welding tractor simultaneously, realize welding tractor and move back and forth on guide rail.
Foregoing is only the preferred version of welding tractor provided by the present invention, is specifically not limited thereto, and can make pointed adjustment according to actual needs on this basis, thus obtain different embodiments.Such as, increase the quantity of carrying roller further, adjustment pressure beam is relative to the position of carrying roller, or the side of pressing beam only adjacent is inclined-plane etc.Because mode in the cards is more, just illustrate no longer one by one here.
Please refer to Fig. 4 to Fig. 7, Fig. 4 is the structural representation of automatic welding and cutting device provided by the present invention; Fig. 5 is the partial enlarged drawing at welding equipment I position automatically shown in Fig. 4; Fig. 6 is the partial enlarged drawing at welding equipment I I position automatically shown in Fig. 4; Fig. 7 is the partial enlarged drawing at welding equipment I II position automatically shown in Fig. 4.
The present invention also provides a kind of welding and cutting device 10 automatically, it forms primarily of pay-off 12 and multiple welding tractor 11, wherein welding tractor 11 is welding tractor mentioned above, each welding tractor 11 is all set up in by wheel 3 on the guide rail 13 of B both sides, pay-off 12 automatic welding district, multiple welding tractor 11 can be aimed at adjustment respectively, weld simultaneously, the front side in pay-off 12 automatic welding district is spot welding assembly section A, and rear side is plasma cut district C.
Pay-off is made up of motor 12-1, lower roll 12-2, top roll 12-3, hold down gag 12-4 etc., and up-down rollers by regulating hold down gag 12-4 by after steel plate clamping, then is rotated by chain-driving lower roll 12-2 by motor 12-1, thus drives steel plate motion.
Three functions can be realized on this automatic welding cutting mill is overall, be divided into three regions (that is: spot welding assembly section A, automatic welding district B, plasma cut district C) as illustrated in the drawing:
1) spot welding assembly section A: can in equipment enterprising pedestrian's work spot welding erection welding, after spot welding completes by pay-off self-feeding to welding region.
2) automatic welding district B: welding tractor clamping work pieces after being overlapped with butt weld by the welding track of adjustment automatic welding carriage after the steel plate 14 that tack welding completes enters welding region, ensure that welding process track overlaps with weld seam, power-on realizes automatic welding.The welding procedure of single face welding and double face shaping is have employed in this welding process.Wherein the core component in this automatic welding district is automatic welding carriage.
Welding tractor two ends are respectively designed with two small wheels and are placed on guide rail, and whole welding tractor can be moved reciprocatingly on rail length direction.Multiple stage welding machine can be arranged as required, welding tractor be moved to corresponding welding position and the weld seam that aligns respectively, realize multiple-pass weld and weld simultaneously.
3) plasma cut district C: by automatic feeding, the product welded is delivered to automatic plasma cutting zone after having welded, adopt automatic plasma cutting equipment that the steel plate 14 welded is carried out secondary stuff-assignment and reach drawing requirement, also point is welded steel plate to be welded feeding automatic welding district simultaneously and carry out continuous welding operation.
This automatic welding cutting mill can realize that multiple-pass weld is aimed at respectively, simultaneously welding, and adopts single face welding and double face shaping technology, joins tack welding at the enterprising luggage of equipment simultaneously, weld and can also carry out secondary stuff-assignment, realize production line balance, enhance productivity, ensure welding quality.In addition, this automatic welding cutting mill and prior art, particularly planer-type automatic welder(welding machine) is compared, lighter, flexible.
Above welding tractor provided by the present invention and automatic welding and cutting device are described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands core concept of the present invention for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (9)
1. a welding tractor (11), is characterized in that, comprising:
Wheel (3), is located at end plate (7) outside;
Underbeam (6), is positioned at also placed in the middle between end plate (7) layout, which is provided with composition backing (8);
Carrying roller (5), comprises the first carrying roller (5-1) and the second carrying roller (5-2), lays respectively at (6) front side and the rear side of described underbeam;
Pressure beam (4), comprise the first pressure beam (4-1) and the second pressure beam (4-2), lay respectively at front side and the rear side of described underbeam (6) top, form the weld seam operation area being positioned at described composition backing (8) top between the two;
Welding machine (1), is set up in described first pressure beam (4-1) and/or the second pressure beam (4-2) movably, and corresponding described weld seam operation area;
Hold down gag (2), is located at described pressure beam (4) two ends, for compressing or loosening described pressure beam (4).
2. welding tractor according to claim 1, it is characterized in that, described first pressure beam (4-1) is across described first carrying roller (5-1) and underbeam (6) top, and described second pressure beam (4-2) is across described second carrying roller (5-2) and underbeam (6) top.
3. welding tractor according to claim 2, it is characterized in that, described first pressure beam (4-1) and the second pressure beam (4-2) are hollow box-structure, and in up-narrow and down-wide isosceles trapezoid on cross section, the inclined-plane of both adjacent sides forms " V " shape weld seam operation area.
4. welding tractor according to claim 3, is characterized in that, the base plate of described first pressure beam (4-1) and the second pressure beam (4-2) is relative to side plate inside indentation certain distance in the height direction.
5. welding tractor according to claim 1, it is characterized in that, described first pressure beam (4-1) and the second pressure beam (4-2) are respectively equipped with welded rails (9), and described welding machine (1) is set up in described welded rails (9) by the guide wheel of advancing (1-1) of its both sides.
6. the welding tractor according to any one of claim 1 to 5, is characterized in that, described hold down gag (2) comprising:
Briquetting (2-1), its two ends laminate or are connected to described first pressure beam (4-1) and the second pressure beam (4-2) respectively;
Swing arm (2-2), longitudinally be threaded onto described briquetting (2-1), its upper end is provided with operating grip (2-4) and is supported in the propelling position (2-5) of described briquetting (2-1), and lower end is threaded and is threaded with described underbeam (6);
Spring (2-3), be set in described swing arm (2-2), its lower end is supported in described underbeam (6), and upper end supports or be connected to the cross tie part between described first pressure beam (4-1) and the second pressure beam (4-2).
7. an automatic welding and cutting device, comprise pay-off (12) and welding tractor (11), it is characterized in that, the welding tractor (11) described in any one of claim 1 to 7 stated by described welding tractor (11), and it is set up on the guide rail (13) of described pay-off (12) automatic welding district (A) both sides by described wheel (3).
8. automatic welding and cutting device according to claim 7, is characterized in that, the front side in described pay-off (12) automatic welding district (A) is spot welding assembly section (B), and rear side is plasma cut district (C).
9. automatic welding and cutting device according to claim 7, is characterized in that, is arranged side by side with multiple described welding tractor (11) can aimed at adjustment respectively, weld simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510205043.8A CN104759769B (en) | 2015-04-27 | 2015-04-27 | Welding tractor and automatic welding and cutting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510205043.8A CN104759769B (en) | 2015-04-27 | 2015-04-27 | Welding tractor and automatic welding and cutting equipment |
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| Publication Number | Publication Date |
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| CN104759769A true CN104759769A (en) | 2015-07-08 |
| CN104759769B CN104759769B (en) | 2017-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510205043.8A Active CN104759769B (en) | 2015-04-27 | 2015-04-27 | Welding tractor and automatic welding and cutting equipment |
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| CN (1) | CN104759769B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105197521A (en) * | 2015-10-19 | 2015-12-30 | 无锡清杨机械制造有限公司 | Steel delivering guide rail |
| CN109048098A (en) * | 2018-10-26 | 2018-12-21 | 山东舜晟冲压科技股份有限公司 | A kind of loading space crossbeam anti-deformation welder |
| CN109277668A (en) * | 2018-11-06 | 2019-01-29 | 高建路 | A kind of thin plate curved arc part overlap joint continuous welding device and implementation |
| CN111975176A (en) * | 2020-08-24 | 2020-11-24 | 中车大同电力机车有限公司 | Welding device |
| CN114309906A (en) * | 2022-02-15 | 2022-04-12 | 深圳美新隆制罐有限公司 | Plasma arc welding machine for metal can production |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105197521A (en) * | 2015-10-19 | 2015-12-30 | 无锡清杨机械制造有限公司 | Steel delivering guide rail |
| CN109048098A (en) * | 2018-10-26 | 2018-12-21 | 山东舜晟冲压科技股份有限公司 | A kind of loading space crossbeam anti-deformation welder |
| CN109277668A (en) * | 2018-11-06 | 2019-01-29 | 高建路 | A kind of thin plate curved arc part overlap joint continuous welding device and implementation |
| CN111975176A (en) * | 2020-08-24 | 2020-11-24 | 中车大同电力机车有限公司 | Welding device |
| CN114309906A (en) * | 2022-02-15 | 2022-04-12 | 深圳美新隆制罐有限公司 | Plasma arc welding machine for metal can production |
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| CN104759769B (en) | 2017-05-24 |
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