CN112404768A - Welding device for production and processing of semitrailer carriage and use method thereof - Google Patents
Welding device for production and processing of semitrailer carriage and use method thereof Download PDFInfo
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- CN112404768A CN112404768A CN202011291629.8A CN202011291629A CN112404768A CN 112404768 A CN112404768 A CN 112404768A CN 202011291629 A CN202011291629 A CN 202011291629A CN 112404768 A CN112404768 A CN 112404768A
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- 238000003466 welding Methods 0.000 title claims abstract description 74
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title abstract description 12
- 238000003860 storage Methods 0.000 claims description 10
- 230000003028 elevating effect Effects 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims 1
- 239000000725 suspension Substances 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000010168 coupling process Methods 0.000 description 1
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- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- 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
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
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Abstract
The invention relates to the technical field of semi-trailer carriage production, in particular to a welding device for semi-trailer carriage production and processing and a using method thereof, wherein the welding device comprises a base and moving wheels, the lower end surface of the base is fixedly connected with the moving wheels which are distributed leftwards and rightwards, the upper end surface of the base is fixedly connected with a fixed platform, the upper end surface of the fixed platform is fixedly connected with welding equipment, a containing device is fixedly connected inside the welding equipment, the containing device comprises a containing frame and a rotating shaft, and the outer side of the containing frame is fixedly connected with the welding equipment; through pivot, clockwork spring, take-up pulley, bearing and the bracing piece that sets up, can make it rotate through bracing piece and bearing, this kind of suspension type welding equipment makes its connecting wire can not contact with ground when the welding, also guarantees its surface clean and tidy when the connecting wire is not fragile, and this kind of setting need not to make a round trip to tear the connecting wire, and the security performance is better, guarantees through the take-up pulley that the connecting wire is accomodate, saves space, convenient the removal.
Description
Technical Field
The invention relates to the technical field of semi-trailer carriage production, in particular to a welding device for semi-trailer carriage production and processing and a use method thereof.
Background
The semitrailer is a trailer with an axle arranged behind the center of gravity of the vehicle and a coupling device capable of transmitting horizontal and vertical forces to a tractor, and is a heavy transport vehicle connected with the head of the semitrailer through a towing pin.
The carriage of the semitrailer that exists on the market at present all is through manual welding, at first put carriage frame on the mount, then weld fixedly around through the manual work, then weld in proper order, but in welding process, need center on the mount, traditional welding needs the soldered connection of artifical handheld welding equipment to weld, the welding line centers on the mount, otherwise need the manual work to make a round trip to tear the connecting wire, it is very troublesome, and the connecting wire is placed subaerial, the security performance is extremely poor, safety can not be guaranteed, therefore, propose a welding set for semitrailer carriage production and processing and use method thereof to above-mentioned problem.
Disclosure of Invention
The invention aims to provide a welding device for production and processing of a semitrailer carriage and a using method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a welding device for production and processing of a semitrailer carriage and a using method thereof comprise a base and moving wheels, wherein the moving wheels which are distributed leftwards and rightwards are fixedly connected to the lower end face of the base, a fixed table is fixedly connected to the upper end face of the base, welding equipment is fixedly connected to the upper end face of the fixed table, a receiving device is fixedly connected to the inside of the welding equipment and comprises a receiving frame and a rotating shaft, the outer side of the receiving frame is fixedly connected with the welding equipment, the rotating shaft is fixedly connected to the inside of the receiving frame, a clockwork spring is fixedly connected to the center of the rotating shaft, a wire take-up wheel is fixedly connected to the other end of the clockwork spring, a limiting ring is fixedly connected to the outer side of the front side of the wire take-up wheel, a connecting wire is arranged on the outer side of the wire, the lifting device is characterized in that the upper end face of the lifting device is fixedly connected with a bearing, the upper end face of the bearing is fixedly connected with a supporting rod, the upper end face of the supporting rod is rotatably connected with guide wheels which are distributed in the left and right directions, the right sides of the guide wheels are respectively provided with a C-shaped frame, the lower end face of the C-shaped frame is fixedly connected with the supporting rod, the right side of the lower end face of the supporting rod is fixedly connected with a connecting rod, and the lower end.
Preferably, the guide wheel is provided with a connecting line on the outer side, and the C-shaped frame is provided with a connecting line on the inner side.
Preferably, the pivot outside is connected with the take-up pulley rotation, be equipped with the card frame in the positive left side of spacing ring, card frame left end face fixedly connected with electric telescopic handle, electric telescopic handle left side and storage frame fixed connection, tooth has been seted up on the card frame right side, evenly distributed's tooth has been seted up in the spacing ring outside, the card frame passes through tooth and spacing ring meshing.
Preferably, elevating gear is including fixed frame and elevator motor, the inboard fixedly connected with elevator motor of fixed frame, the terminal fixedly connected with threaded rod of elevator motor main shaft, threaded rod outside screwed connection has the thread bush, the terminal surface fixedly connected with bearing is sheathe in to the thread bush.
Preferably, the thread bushing is provided with a chute on the left side, a limiting plate is arranged in the chute, the outer side of the limiting plate is fixedly connected with the fixing frame, and the limiting plate is slidably connected with the thread bushing through the chute.
Preferably, stop device includes rack and sliding shaft, the inside sliding connection of rack has the sliding shaft, the sliding shaft outside rotates and is connected with the grip block that distributes around being, terminal surface fixedly connected with movable plate under the grip block, the inside sliding connection of movable plate has the sliding plate, sliding plate left side fixedly connected with gag lever post, sliding plate right side fixedly connected with expanding spring, the expanding spring other end and movable plate fixed connection, the inside left side sliding connection of rack has the rotating ring, the inside fixedly connected with button of rotating ring.
Preferably, the grip block quantity is two, and the grip block all is the 2/3 ring setting, is located the front side the grip block front side with be located the rear side the grip block rear side all contacts with the rack.
Preferably, the using steps are as follows:
step 1: firstly, placing a semi-trailer carriage on a fixed frame, then moving the equipment aside, and then checking whether each part of the equipment is normal;
step 2: then, the storage device is started to enable the connecting wire to be in a paying-off state, then the lifting device is started to enable the bearing and the supporting rod to be driven to move upwards to enable the bearing and the supporting rod to be higher than the semi-trailer carriage, then the connecting wire is enabled to move stably under the action of the guide wheels and the C-shaped frame, and then welding work can be achieved through a welding gun;
and step 3: after its welding is accomplished, through placing the welding rifle in stop device, make it reset through starting elevating gear, then can realize the work of accomodating of connecting wire through starting storage device, avoid the connecting wire in disorder.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the suspension type welding equipment, the connecting wire can not be contacted with the ground during welding through the supporting rod and the bearing, the surface of the connecting wire is ensured to be clean and tidy while the connecting wire is not easy to damage, the connecting wire does not need to be pulled back and forth due to the arrangement, the safety performance is better, the connecting wire is ensured to be stored through the take-up pulley, the space is saved, and the movement is convenient;
2. according to the invention, through the arrangement of the fixing frame, the lifting motor, the threaded rod, the threaded sleeve and the limiting plate, the threaded rod is driven by the lifting motor to drive the threaded sleeve to move, so that the height of the threaded sleeve can be adjusted, articles with different heights can be conveniently welded, the use range is expanded, and the threaded sleeve has good practical value;
3. according to the welding gun, the two clamping plates can limit and fix the welding gun through the arrangement of the placing frame, the sliding shaft, the clamping plates, the moving plate, the telescopic spring, the sliding plate, the limiting rod and the button, so that the welding gun is prevented from being damaged due to contact of a welding head with the ground or other objects, the service life of the welding gun is guaranteed, and when the welding gun is taken, the welding gun is very convenient only by pressing the button.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a storage device according to the present invention;
FIG. 3 is a schematic view of the lifting device of the present invention;
FIG. 4 is a schematic view of the structure of the position limiting device of the present invention;
FIG. 5 is a schematic view of the structure of FIG. 4 at A according to the present invention;
FIG. 6 is a schematic diagram of a clamping plate structure according to the present invention.
In the figure: 1-base, 2-moving wheel, 3-fixed station, 4-welding equipment, 5-receiving device, 501-receiving frame, 502-rotating shaft, 503-clockwork spring, 504-take-up pulley, 505-limiting ring, 506-electric telescopic rod, 507-clamping frame, 6-lifting device, 601-fixed frame, 602-lifting motor, 603-threaded rod, 604-thread bush, 605-limiting plate, 7-bearing, 8-supporting rod, 9-limiting device, 901-placing frame, 902-sliding shaft, 903-clamping plate, 904-moving plate, 905-telescopic spring, 906-sliding plate, 907-limiting rod, 908-button, 909-sliding ring, 10-connecting rod, 11-guide wheel, guide, 12-C type frame, 13-welding gun, 14-connecting wire.
Detailed Description
Example 1:
referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, the present invention provides a technical solution:
a welding device for production and processing of a semitrailer carriage and a using method thereof comprise a base 1 and a movable wheel 2, the lower end surface of the base 1 is fixedly connected with the movable wheel 2 which is distributed leftwards and rightwards, the upper end surface of the base 1 is fixedly connected with a fixed platform 3, the upper end surface of the fixed platform 3 is fixedly connected with a welding device 4, the interior of the welding device 4 is fixedly connected with a receiving device 5, the receiving device 5 comprises a receiving frame 501 and a rotating shaft 502, the outer side of the receiving frame 501 is fixedly connected with the welding device 4, the interior of the receiving frame 501 is fixedly connected with the rotating shaft 502, the outer side of the rotating shaft 502 is rotatably connected with a wire-collecting wheel 504, the right left side of a limiting ring 505 is provided with a clamping frame 507, the left end surface of the clamping frame 507 is fixedly connected with an electric telescopic rod 506, the electric telescopic rod 506 can push the clamping frame 507 to move rightwards and then limit, the outer side of the limiting ring 505 is provided with teeth which are uniformly distributed, the clamping frame 507 is meshed with the limiting ring 505 through the teeth, the wire take-up reel 504 can be fixed by the arrangement, the normal use of the wire take-up reel is ensured, the center of the rotating shaft 502 is fixedly connected with a clockwork spring 503, the other end of the clockwork spring 503 is fixedly connected with the wire take-up reel 504, the outer side of the front side of the wire take-up reel 504 is fixedly connected with the limiting ring 505, the outer side of the wire take-up reel 504 is provided with a connecting wire 14, the right side of the welding equipment 4 is fixedly connected with a lifting device 6, the lifting device 6 comprises a fixed frame 601 and a lifting motor 602, the inner side of the fixed frame 601 is fixedly connected with the lifting motor 602, the tail end of a main shaft of the lifting motor 602 is fixedly connected with a threaded rod 603, the outer side, a limiting plate 605 is arranged in the sliding chute, the outer side of the limiting plate 605 is fixedly connected with a fixed frame 601, the limiting plate 605 is slidably connected with a threaded sleeve 604 through the sliding chute, the arranged limiting plate 605 ensures that the threaded sleeve 604 stably moves up and down to avoid self rotation, a connecting wire 14 is arranged in the containing device 5, the other end of the connecting wire 14 is fixedly connected with a welding gun 13, the upper end surface of the lifting device 6 is fixedly connected with a bearing 7, the upper end surface of the bearing 7 is fixedly connected with a supporting rod 8, the upper end surface of the supporting rod 8 is rotatably connected with guide wheels 11 which are distributed leftwards and rightwards, the right sides of the guide wheels 11 are respectively provided with a C-shaped frame 12, the lower end surface of the C-shaped frame 12 is fixedly connected with the supporting rod 8, the right side of the lower end surface of the supporting rod 8 is fixedly connected, the outer side of the sliding shaft 902 is rotatably connected with two clamping plates 903 which are distributed in a front-back manner, the lower end face of each clamping plate 903 is fixedly connected with a moving plate 904, the inner part of each moving plate 904 is slidably connected with a sliding plate 906, the left side of each sliding plate 906 is fixedly connected with a limiting rod 907, the right side of each sliding plate 906 is fixedly connected with a telescopic spring 905, each telescopic spring 905 can extrude the sliding plate 906 to drive the limiting rod 907 to prop against the placement frame 901, when the sliding plate 906 moves to the position of the button 908, the button 908 can be jacked to move leftwards, the other end of each telescopic spring 905 is fixedly connected with the moving plate 904, the left side of the interior of the placement frame 901 is slidably connected with a rotating ring 909, the interior of each rotating ring 909 is fixedly connected with a button 908, the button 908 can extrude the limiting rod 907 by pressing the button 908, so that, the grip block 903 front side that is located the front side all contacts with rack 901 with the grip block 903 rear side that is located the rear side, and this kind of setting can be through grip block 903 downstream to rack 901 extrudes it, guarantees to make its grip block 903 can carry out spacingly to welding rifle 13, and the leading wheel 11 outside is equipped with connecting wire 14, and C type frame 12 inboard is equipped with connecting wire 14, and this kind can be injectd the position of connecting wire 14, avoids its four places to float.
The use steps are as follows:
step 1: firstly, placing a semi-trailer carriage on a fixed frame, then moving the equipment aside, and then checking whether each part of the equipment is normal;
step 2: then, the storage device 5 is started to enable the connecting wire 14 to be in a paying-off state, then the lifting device 6 is started to enable the bearing 7 and the supporting rod 8 to be driven to move upwards to enable the connecting wire to be higher than the semi-trailer carriage, then the connecting wire 14 is enabled to stably move under the action of the guide wheel 11 and the C-shaped frame 12, and then welding work can be achieved through the welding gun 13;
and step 3: after its welding is accomplished, through placing welding gun 13 in stop device 9, make it reset through starting elevating gear 6, then can realize the work of accomodating of connecting wire 14 through starting storage device 5, avoid connecting wire 14 in disorder.
The working process is as follows: when in use, the power is switched on, then the carriage parts of the semitrailer are placed on the fixed frame, then the front side and the rear side of the semitrailer are welded and fixed firstly, then the electric telescopic rod 506 is started to drive the clamping frame 507 to move, the clamping frame 507 is separated from the limiting ring 505, then the connecting wire 14 is pulled to drive the take-up pulley 504 to rotate, at the moment, the extension of the connecting wire 14 can be realized, when the length of the connecting wire 14 is proper, the electric telescopic rod 506 is started to drive the clamping frame 507 to be meshed with the limiting ring 505 again, the fixing is realized, the arranged guide wheel 11 and the C-shaped frame 12 ensure that the connecting wire 14 stably moves, the guiding purpose is realized, and the lifting motor 602 is started to drive the threaded rod 603 to rotate, so that the threaded sleeve 604 is driven to move up and down, the bearing 7 and the supporting rod 8 are driven to move up and down, the, and the limiting plate 605 of setting guarantees that thread bush 604 steadily reciprocates, and welding gun 13 can normally weld this moment, and this kind of setting makes it when the welding, and connecting wire 14 can not be at subaerial winding round trip, guarantees that its surface is clean and tidy, simultaneously in welding process, need not to make a round trip to drag connecting wire 14, very conveniently carries out weldment work, and when not using, connecting wire 14 can be accomodate the work through take-up pulley 504 simultaneously, saves space, has fine practical value.
Example 2:
in embodiment 2, the same parts as those in embodiment 1 are not described again, except that after the welding is completed, the welding gun 13 is directly placed above the clamping plate 903 and then pressed downward, the clamping plate 903 moves downward to clamp and fix the welding gun 13, the clamping plate 903 moves downward and simultaneously drives the moving plate 904, the moving plate 904 drives the sliding plate 906 and the limiting rod 907 to move downward, the limiting rod 907 moves downward to contact with the button 908, the sliding plate 906 moves leftward under the action of the telescopic spring 905, the button 908 drives the sliding ring 909 to move leftward to fix the limiting rod 907, so that the moving plate 904 is fixed, the welding gun 13 is conveniently limited by the clamping plate 903, when the welding gun needs to be taken out, the limiting rod 907 can be pushed out by pressing the button 908, the clamping plate 903 is held by hand to be pulled upward, and then the clamping plate 903 moves upward to take out the welding gun 13, then, the welding work is performed.
The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.
Claims (8)
1. The utility model provides a semitrailer carriage welding set for production and processing, includes base (1) and removes wheel (2), its characterized in that: the welding device is characterized in that the lower end face of the base (1) is fixedly connected with moving wheels (2) which are distributed leftwards and rightwards, the upper end face of the base (1) is fixedly connected with a fixed table (3), the upper end face of the fixed table (3) is fixedly connected with welding equipment (4), a containing device (5) is fixedly connected inside the welding equipment (4), the containing device (5) comprises a containing frame (501) and a rotating shaft (502), the outer side of the containing frame (501) is fixedly connected with the welding equipment (4), the rotating shaft (502) is fixedly connected inside the containing frame (501), a clockwork spring (503) is fixedly connected in the center of the rotating shaft (502), the other end of the clockwork spring (503) is fixedly connected with a take-up wheel (504), the outer part of the front side of the take-up wheel (504) is fixedly connected with a limiting ring (505), the outer side of the take-up wheel (504, storage device (5) inside is equipped with connecting wire (14), connecting wire (14) other end fixedly connected with welding gun (13), up end fixedly connected with bearing (7) on elevating gear (6), up end fixedly connected with bracing piece (8) on bearing (7), bracing piece (8) up end rotates and is connected with leading wheel (11) of controlling the distribution, leading wheel (11) right side all is equipped with C type frame (12), terminal surface and bracing piece (8) fixed connection under C type frame (12), terminal surface right side fixedly connected with connecting rod (10) under bracing piece (8), terminal surface fixedly connected with stop device (9) under connecting rod (10).
2. The welding device for the production and processing of the semitrailer carriage as claimed in claim 1, is characterized in that: the outer side of the guide wheel (11) is provided with a connecting line (14), and the inner side of the C-shaped frame (12) is provided with the connecting line (14).
3. The welding device for the production and processing of the semitrailer carriage as claimed in claim 1, is characterized in that: the utility model discloses a take-up pulley, including pivot (502) outside and take-up pulley (504) rotation connection, the positive left side of spacing ring (505) is equipped with card frame (507), card frame (507) left end face fixedly connected with electric telescopic handle (506), electric telescopic handle (506) left side and storage frame (501) fixed connection, the tooth has been seted up on card frame (507) right side, evenly distributed's tooth is seted up in the spacing ring (505) outside, card frame (507) passes through tooth and spacing ring (505) meshing.
4. The welding device for the production and processing of the semitrailer carriage as claimed in claim 1, is characterized in that: elevating gear (6) are including fixed frame (601) and elevator motor (602), fixed frame (601) inboard fixedly connected with elevator motor (602), elevator motor (602) terminal fixedly connected with threaded rod (603) of main shaft, threaded rod (603) outside threaded connection has thread bush (604), end face fixedly connected with bearing (7) on thread bush (604).
5. The welding device for the production and processing of the semitrailer carriage as claimed in claim 4, is characterized in that: the left side of the threaded sleeve (604) is provided with a sliding groove, a limiting plate (605) is arranged in the sliding groove, the outer side of the limiting plate (605) is fixedly connected with the fixed frame (601), and the limiting plate (605) is slidably connected with the threaded sleeve (604) through the sliding groove.
6. The welding device for the production and processing of the semitrailer carriage as claimed in claim 1, is characterized in that: the limiting device (9) comprises a placing rack (901) and a sliding shaft (902), the sliding shaft (902) is connected to the inside of the placing rack (901) in a sliding mode, a clamping plate (903) which is distributed front and back is connected to the outer side of the sliding shaft (902) in a rotating mode, a moving plate (904) is fixedly connected to the lower end face of the clamping plate (903), a sliding plate (906) is connected to the inside of the moving plate (904) in a sliding mode, a limiting rod (907) is fixedly connected to the left side of the sliding plate (906), an expansion spring (905) is fixedly connected to the right side of the sliding plate (906), the other end of the expansion spring (905) is fixedly connected with the moving plate (904), a rotating ring (909) is connected to the inside of the placing rack (.
7. The welding device for the production and processing of the semitrailer carriage as claimed in claim 6, is characterized in that: grip block (903) quantity is two, and grip block (903) all is the setting of 2/3 rings, is located the front side grip block (903) front side with be located the rear side grip block (903) rear side all contacts with rack (901).
8. The welding device for the production and processing of the semitrailer carriage as claimed in claim 1, is characterized in that: the using steps are as follows:
step 1: firstly, placing a semi-trailer carriage on a fixed frame, then moving the equipment aside, and then checking whether each part of the equipment is normal;
step 2: then, the connecting line (14) is in a paying-off state by starting the storage device (5), then the lifting device (6) is started to drive the bearing (7) and the supporting rod (8) to move upwards to be higher than the semi-trailer carriage, then the connecting line (14) is stably moved under the action of the guide wheel (11) and the C-shaped frame (12), and then welding work can be realized through the welding gun (13);
and step 3: after its welding is accomplished, through placing welding gun (13) in stop device (9), make it reset through starting elevating gear (6), then can realize the work of accomodating of connecting wire (14) through starting storage device (5), avoid connecting wire (14) in disorder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011291629.8A CN112404768A (en) | 2020-11-18 | 2020-11-18 | Welding device for production and processing of semitrailer carriage and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011291629.8A CN112404768A (en) | 2020-11-18 | 2020-11-18 | Welding device for production and processing of semitrailer carriage and use method thereof |
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| CN112404768A true CN112404768A (en) | 2021-02-26 |
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| CN202011291629.8A Pending CN112404768A (en) | 2020-11-18 | 2020-11-18 | Welding device for production and processing of semitrailer carriage and use method thereof |
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| CN113134694A (en) * | 2021-03-29 | 2021-07-20 | 安徽鸿蒙汽车有限公司 | Welding device for producing trailer carriage capable of conveniently filtering toxic smoke |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113134694A (en) * | 2021-03-29 | 2021-07-20 | 安徽鸿蒙汽车有限公司 | Welding device for producing trailer carriage capable of conveniently filtering toxic smoke |
| CN113134694B (en) * | 2021-03-29 | 2023-01-13 | 安徽鸿蒙汽车有限公司 | Welding device for producing trailer carriage capable of conveniently filtering toxic smoke |
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