CN115041807A - Flexible welding equipment and welding method - Google Patents
Flexible welding equipment and welding method Download PDFInfo
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- CN115041807A CN115041807A CN202210977920.3A CN202210977920A CN115041807A CN 115041807 A CN115041807 A CN 115041807A CN 202210977920 A CN202210977920 A CN 202210977920A CN 115041807 A CN115041807 A CN 115041807A
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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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
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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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/26—Auxiliary equipment
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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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
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- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of automobile manufacturing, and discloses flexible welding equipment and a welding method, wherein the equipment comprises the following components: the device comprises a rack, a first positioning area and a second positioning area, wherein the rack is provided with two mounting platforms which are connected between the first positioning area and the second positioning area in a sliding manner; the replacing mechanism is arranged on the rack and drives the two mounting platforms to replace back and forth between the first station area and the second station area at the same time; and the number of the welding assemblies is two, the two welding assemblies are arranged above the mounting platform, and the two welding assemblies are respectively positioned in the first station area and the second station area. The invention saves the workpiece picking and placing station and the moulding bed in the prior art, and shortens the operation time of the moulding bed, thereby being superior to the prior art in the aspects of welding efficiency, project cost and the like. Meanwhile, the invention also provides a welding method applying the flexible welding equipment.
Description
Technical Field
The invention relates to the technical field of automobile manufacturing, in particular to flexible welding equipment and a welding method.
Background
The automobile interior assembly can be welded by adopting ultrasonic waves, hot riveting, laser and other modes. In the past, the interior assembly of the vehicle with high yield is generally welded by special equipment, while the interior assembly of the vehicle with low yield is welded manually. If special equipment is adopted for welding, the product quality is stable, the productivity is high, and the special equipment is stopped once the project stops production; if manual welding is adopted, although the input cost is low, the welding quality is unstable and the appearance of the product is easily damaged by scraping.
In recent years, with the improvement of production concepts, the development of non-standard automation equipment tends to flexible production, that is, multiple items are randomly switched to project production or collinear production according to different requirements, so as to reduce the investment of special equipment. At present, in order to reduce the occupied area, a multi-station flexible production line adopts a three-dimensional upper-lower two-layer type circulation mode for a forming die on the flexible production line, the multi-station flexible production line needs to be additionally provided with two lifting stations besides a welding station to enable the forming die to circulate, and one or more forming dies need to be additionally arranged besides the forming die which is working at the welding station to wait on a non-welding station.
Disclosure of Invention
The present invention is directed to a flexible welding apparatus that solves one or more of the problems set forth in the prior art, and provides at least one useful alternative or creation.
The flexible welding device according to the embodiment of the first aspect of the invention comprises:
the device comprises a rack, a first positioning area, a second positioning area, a first positioning device and a second positioning device, wherein the rack is provided with the first positioning area and the second positioning area, and two mounting platforms are connected between the first positioning area and the second positioning area in a sliding manner;
the replacing mechanism is arranged on the rack and drives the two mounting platforms to replace back and forth between the first station area and the second station area at the same time;
and the number of the welding assemblies is two, the two welding assemblies are arranged above the mounting platform, and the two welding assemblies are respectively positioned in the first station area and the second station area.
The flexible welding equipment provided by the embodiment of the invention has at least the following beneficial effects: the invention creates a welding process for workpieces divided into two welding processes, wherein a welding assembly positioned in a first station area is used for carrying out a first welding process on the workpieces, a welding assembly positioned in a second station area is used for carrying out a second welding process on the workpieces, the two welding assemblies can simultaneously carry out corresponding welding processes on different workpieces, and after the two workpieces respectively complete one welding process, the positions of the two workpieces can be replaced by the replacement mechanism, so that the two welding assemblies can simultaneously carry out the rest welding processes on the two workpieces, thereby completing the welding process for the two workpieces; the invention saves the workpiece picking and placing station and the moulding bed in the prior art, and shortens the operation time of the moulding bed, thereby being superior to the prior art in the aspects of welding efficiency, project cost and the like.
According to some embodiments of the invention, in order to avoid interference between the two mounting platforms in the replacement process, the two mounting platforms are arranged in layers up and down, and the two mounting platforms move in opposite directions through the replacement mechanism.
According to some embodiments of the invention, the replacement mechanism comprises a driving device and a synchronous belt, the driving device drives the synchronous belt to rotate, the mounting platform located above is connected to an upper belt of the synchronous belt, and the mounting platform located below is connected to a lower belt of the synchronous belt. This feature can be used to achieve opposite movement of the two mounting platforms, since the upper belt moves in the opposite direction to the lower belt.
According to some embodiments of the invention, the frame is provided with positioning devices in the first station area and the second station area, and the two mounting platforms are provided with positioning portions in matching connection with the positioning devices, so that the two mounting platforms are positioned at specified positions.
According to some embodiments of the invention, in order to improve the welding efficiency of the welding assemblies, each welding assembly comprises a plurality of working welding heads and a motion module for spatial movement of the working welding heads.
According to some embodiments of the invention, in order to further improve the welding efficiency of workpieces, each of the mounting platforms is provided with a plurality of welding areas, and all working welding heads of each welding assembly are respectively arranged in one-to-one correspondence with all welding areas of each of the mounting platforms.
According to some embodiments of the invention, all working welding heads are ultrasonic welding heads, since the ultrasonic welding process is commonly used for welding plastic parts.
According to some embodiments of the invention, in order to differentiate between two welding processes for integrating the welding program of each of said welding assemblies, the working welding heads located in said first station area are dedicated ultrasonic welding heads and the working welding heads located in said second station area are general ultrasonic welding heads.
According to the welding method of the second aspect embodiment of the invention, the welding method is used for the flexible welding equipment, the two installation platforms are respectively located in the first station area and the second station area, and the two installation platforms are connected with the forming dies, and the welding method further comprises the following steps:
s10, loading a workpiece on a forming die of the first station area during first welding, and carrying out a first welding procedure on the workpiece of the first station area by a welding assembly positioned in the first station area;
s20, after all the workpieces complete corresponding welding procedures, the replacement mechanism replaces the positions of the two mounting platforms;
s30, loading the next workpiece on the mould of the first station area, wherein the welding assembly in the first station area performs a first welding process on the workpiece in the first station area, and the welding assembly in the second station area performs a second welding process on the workpiece in the second station area;
s40, after all the workpieces finish corresponding welding procedures, the replacement mechanism replaces the positions of the two mounting platforms;
s50, unloading the workpiece from the moulding bed of the first station area;
s60, repeating the steps S30 to S50 until welding of all workpieces is completed.
The welding method provided by the embodiment of the invention has at least the following beneficial effects: the welding method can improve the welding efficiency of the workpieces, and the first station area can be used for loading and unloading the workpieces, so that corresponding butt joint equipment can be saved, and the flexible welding equipment can be flexibly connected with other projects better.
According to some embodiments of the invention, in order to prevent the assembled workpieces from deviating in position during welding or not being assembled in place, so that gaps are generated after welding, a pressure point is required to be arranged near each welding point. For this reason, each of the moulding beds is connected with a pressing tool with a pressing point, and the pressing tool is turned over and opened and closed on the moulding bed for taking and placing workpieces conveniently.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic perspective view of a flexible welding apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of another embodiment of the flexible welding apparatus of the present invention;
FIG. 3 is a schematic perspective view of the flexible welding apparatus of the present invention with the welding assembly removed;
fig. 4 is another perspective view of the flexible welding apparatus according to the embodiment of the present invention after the welding assembly is removed.
In the drawings: 100-a frame, 200-a replacing mechanism, 300-a welding assembly, 110-a safety grating, 120-an upper linear guide rail, 130-a lower linear guide rail, 101-a first station area, 102-a second station area, 400-an upper mounting platform, 500-a lower mounting platform, 600-a tire mold, 210-a driving device, 220-a synchronous belt, 211-a transmission shaft and 230-a synchronous wheel, 221-upper belt, 222-lower belt, 700-positioning device, 710-positioning part, 310-working welding head, 320-moving module, 324-first beam, 321-left-right moving mechanism, 325-second beam, 322-front-back moving mechanism, 323-up-down lifting mechanism, 311-ultrasonic generator, 800-pressing tool and 810-turnover mechanism.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of illustrating the invention and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as up, down, front, rear, left, right, etc., is the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of the description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the invention, the meaning of a plurality of the terms is one or more, the meaning of a plurality of the terms is two or more, and the terms larger, smaller, larger, etc. are understood to include no essential numbers, and the terms larger, smaller, etc. are understood to include essential numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly defined, terms such as setup, installation, connection, and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the terms in the present invention in combination with the detailed contents of the technical solutions.
As shown in fig. 1 and 2, a flexible welding apparatus according to an embodiment of the first aspect of the present invention includes a rack 100, a replacing mechanism 200, and a welding assembly 300, wherein the rack 100 is provided with a front-facing docking port for flexible connection with other items, and the rack 100 is provided with a safety barrier 110 at the docking port to improve safety performance of the flexible welding apparatus.
As shown in fig. 3 and 4, the frame 100 is provided with two upper linear guides 120 and two lower linear guides 130 arranged in the front-rear direction, the two upper linear guides 120 are respectively positioned right above the two lower linear guides 130, and the two upper linear guides 120 are arranged at intervals in the left-right direction, so that a station area is formed therein, and the station area is divided into a first station area 101 and a second station area 102 from the front to the rear. Two the equal sliding connection of last linear guide 120 has last mounting platform 400, two equal sliding connection of lower linear guide 130 has lower mounting platform 500, correspondingly, go up mounting platform 400 with lower mounting platform 500 upper and lower layering sets up, and two mounting platforms homoenergetic first station district 101 with slide back and forth between the second station district 102. The two mounting platforms are respectively provided with a forming die 600, the forming die 600 is used for loading workpieces to be welded, and the forming die 600 can be detachably connected with the mounting platforms to realize flexible connection due to different workpieces which need different forming dies 600.
Carry out the replacement of position in order to drive two mounting platform, replacement mechanism 200 includes drive arrangement 210 and two hold-in ranges 220, two hold-in ranges 220 are located respectively the left and right sides in station area, drive arrangement 210 can be selected to servo motor, and it passes through transmission shaft 211 simultaneous control two hold-in ranges 220 revolve, hold-in ranges 220 will through synchronizing wheel 230 drive arrangement 210's rotary motion converts linear motion into. Since the upper belt 221 moves in the opposite direction to the lower belt 222 for the timing belt 220, this feature can be used to achieve the opposite motion of the two mounting platforms. For this, the upper belts 221 of the two synchronous belts 220 are fixedly connected to the upper mounting platform 400 by a toothed pressing plate (not shown in the drawings), the lower belts 222 of the two synchronous belts 220 are fixedly connected to the lower mounting platform 500 by a toothed pressing plate, and the upper mounting platform 400 and the lower mounting platform 500 can be joined at the middle of the synchronous belts 220. When the driving device 210 is activated, the upper mounting platform 400 and the lower mounting platform 500 perform reverse movement until the positions of the two are replaced, and when the positions of the two need to be replaced again, the reverse driving of the driving device 210 can be used for realizing the reverse movement. It should be understood that the invention is not limited to the specific structure of the displacement mechanism 200, and any structure of the displacement mechanism 200 is within the protection scope of the invention as long as the displacement mechanism 200 can realize the displacement of the two mounting platform positions.
Further, the rack 100 is provided with two positioning devices 700 in the first station area 101 and the second station area 102, and the two positioning devices 700 in the same station area are arranged in layers. The upper mounting platform 400 is provided with a positioning portion 710 connected with the positioning device 700 on the upper layer in a matching manner, the lower mounting platform 500 is provided with a positioning portion 710 connected with the positioning device 700 on the lower layer in a matching manner, the positioning portion 710 can be a V-shaped groove block, and the positioning device 700 can be an expansion rod driven by an air cylinder and provided with a V-shaped tail end. After the driving device 210 drives the two mounting platforms to move to the designated positions, the positions of the two mounting platforms can be respectively positioned by the positioning device 700 located in the first station area 101 and the positioning device 700 located in the second station area 102, so as to prevent the two mounting platforms from deviating in position during welding.
As shown in fig. 1 and 2, the number of the welding assemblies 300 is two, two welding assemblies 300 are both mounted on the rack 100 and located above the mounting platform, and the two welding assemblies 300 correspond to the first station area 101 and the second station area 102, respectively. The invention provides a method for separating the welding process of workpieces into two welding processes, wherein the welding assembly 300 located in the first station area 101 is used for carrying out the first welding process on the workpieces, and the welding assembly 300 located in the second station area 102 is used for carrying out the second welding process on the workpieces.
Specifically, each of the welding assemblies 300 includes four working welding heads 310 and a motion module 320 for spatially moving the working welding heads 310, and the motion module 320 has X, Y, Z three-axis degrees of freedom, which enables spatial movement of each of the working welding heads 310. In order to improve the welding efficiency of the workpieces, the invention divides the workpieces on each mounting platform into four welding areas, and each welding area is welded by the corresponding working welding head 310. Each motion module 320 comprises two first beams 324 arranged along the left-right direction, the two first beams 324 are arranged at intervals along the front-back direction, each first beam 324 is connected with two left-right moving mechanisms 321 which move electrically along the length direction of the first beam 324, each left-right moving mechanism 321 is provided with a second beam 325 arranged along the front-back direction, each left-right moving mechanism 321 is connected with a front-back moving mechanism 322 which moves electrically along the length direction of the second beam 325, each front-back moving mechanism 322 is connected with an upper-lower lifting mechanism 323, and each upper-lower lifting mechanism 323 is connected with one working welding head 310 so as to independently control the spatial position of each working welding head 310. It is understood that the left-right moving mechanism 321, the front-back moving mechanism 322 and the up-down lifting mechanism 323 include, but are not limited to, a lead screw nut mechanism, a rack and pinion mechanism or a linear motor; moreover, the number of working welding heads 310 of each welding assembly 300 may also be one, two, three, etc., and correspondingly, the number of welding areas corresponds to the number of working welding heads 310, and is not limited to the above-described embodiments.
Since the interior parts of the automobile are generally plastic parts, and the ultrasonic welding process is commonly used for welding the plastic parts, all the working welding heads 310 can be selected as ultrasonic welding heads. Therefore, the frame 100 is provided with an ultrasonic generator 311 for providing ultrasonic energy for the ultrasonic welding heads, each ultrasonic welding head is sleeved with a cooling sleeve, each ultrasonic welding head is connected with an eddy current cooler, compressed air divides the gas into cold gas and hot gas through the eddy current cooler, and the cold gas (5-10 ℃) is sent into the cooling sleeve of the ultrasonic welding head and flows out from the tail end of the cooling sleeve so as to rapidly cool the ultrasonic welding head and the welding part of the workpiece. It will be appreciated that the cooling system for the ultrasonic horn is prior art and the invention is created with specific structure that is well known to those skilled in the art, although only the cooling principle is disclosed.
Furthermore, although the present invention is created to divide the welding process of the workpieces into two welding processes, the ultrasonic welding of the workpieces in the prior art requires the use of a dedicated ultrasonic horn for welding a special weld spot, such as a shaped weld spot, and a general-purpose ultrasonic horn for welding a standard weld spot. In order to distinguish between the two welding operations and to integrate the welding programs of each welding assembly, all working welding heads 310 located in the first station area 101 may be selected as dedicated ultrasonic welding heads, and all working welding heads 310 located in the second station area 102 may be selected as common ultrasonic welding heads, so that the welding assembly 300 located in the first station area 101 performs the welding operation of the dedicated welding heads, and the welding assembly 300 located in the second station area 102 performs the welding operation of the common welding heads. It is understood that the dedicated ultrasonic horn may also be disposed in the second station area 102, and the general ultrasonic horn may also be disposed in the first station area 101, without being limited to the above-described embodiment.
The welding method according to the second aspect of the present invention is applied to the flexible welding apparatus according to the first aspect of the present invention, and further includes the following steps, assuming that the lower mounting platform 500 and the upper mounting platform 400 are respectively located in the first station area 101 and the second station area 102:
s10, when welding for the first time, loading a first workpiece on a jig 600 located in the first station area 101 by a manipulator, and then carrying out a first welding procedure on the first workpiece by a welding assembly 300 located in the first station area 101;
s20, after the first workpiece completes a first welding procedure, the replacement mechanism 200 replaces the positions of the two mounting platforms through positive rotation of a servo motor, and at the moment, the upper mounting platform 400 and the lower mounting platform 500 are respectively located in the first station area 101 and the second station area 102;
s30, the robot arm loads the second workpiece on the molding bed 600 in the first station area 101, and then the welding assembly 300 in the first station area 101 performs the first welding process on the second workpiece, and the welding assembly 300 in the second station area 102 performs the second welding process on the first workpiece;
s40, after the two workpieces complete corresponding welding procedures, the replacement mechanism 200 replaces the positions of the two mounting platforms through the reverse rotation of a servo motor, and at the moment, the lower mounting platform 500 and the upper mounting platform 400 are respectively located in the first station area 101 and the second station area 102;
s50, since the first workpiece is subjected to two welding processes, the first workpiece can be unloaded from the moulding bed 600 of the first station area 101 through a manipulator;
s60, repeating the steps S30 to S50 until welding of all workpieces is completed.
It should be further noted that, since the upper mounting platform 400 and the lower mounting platform 500 are arranged in layers, when the welding assembly 300 welds the workpieces of the upper mounting platform 400 or the lower mounting platform 500, it can automatically switch to the corresponding welding program under the control of a PLC or other controller, that is, each welding assembly 300 has at least two welding programs, and it switches back and forth according to the replacement cycle of the replacement mechanism 200.
In addition, in order to prevent the assembled workpieces from being positionally deviated during welding or from being not assembled in place, which may result in a gap after welding, it is necessary to provide a pressure point in the vicinity of each welding point. For this purpose, a press 800 having a pressing point is connected to each of the molding beds 600, and the press 800 is turned over and opened and closed on the molding beds 600 by a turning mechanism 810 in order to facilitate the taking and placing of the workpiece. Before the workpiece on the molding bed 600 needs to be unloaded, the press 800 is driven by the turnover mechanism 810 to be opened so as to expose the cavity of the molding bed 600, and after the loading of the workpiece is completed, the press 800 is driven by the turnover mechanism 810 to be closed so as to limit the workpiece at the bottom of the cavity of the molding bed 600.
The welding method can improve the welding efficiency of the workpieces, and the first station area 101 can be used for loading and unloading the workpieces, so that corresponding butt joint equipment can be saved, and the flexible welding equipment can be flexibly connected with other projects better.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. Flexible welding equipment, its characterized in that includes:
the device comprises a rack (100) and a control system, wherein the rack (100) is provided with a first station area (101) and a second station area (102), and two mounting platforms are connected between the first station area (101) and the second station area (102) of the rack (100) in a sliding manner;
the replacing mechanism (200) is installed on the rack (100), and the replacing mechanism (200) drives the two installing platforms to replace back and forth between the first station area (101) and the second station area (102) at the same time;
two welding assemblies (300), two of which are installed above the installation platform, wherein the two welding assemblies (300) are respectively located in the first station area (101) and the second station area (102).
2. The flexible welding apparatus of claim 1, wherein: the two mounting platforms are arranged in a layered mode from top to bottom, and move reversely through the replacement mechanism (200).
3. The flexible welding apparatus of claim 2, wherein: replace mechanism (200) including drive arrangement (210) and hold-in range (220), drive arrangement (210) drive hold-in range (220) are turned round, are located the top mounting platform connect in the upper band (221) of hold-in range (220), be located the below mounting platform connect in lower area (222) of hold-in range (220).
4. The flexible welding apparatus of claim 1, wherein: frame (100) be in first station district (101) and second station district (102) all are equipped with positioner (700), two mounting platform all is equipped with positioner (700) accordant connection's location portion (710).
5. The flexible welding apparatus of claim 1, wherein: each welding assembly (300) comprises a plurality of working welding heads (310) and a motion module (320) which can be used for carrying out space motion on the working welding heads (310).
6. The flexible welding apparatus of claim 5, wherein: each mounting platform is equally provided with a plurality of welding areas, and all working welding heads (310) of each welding assembly (300) are respectively arranged in one-to-one correspondence with all welding areas of each mounting platform.
7. Flexible welding device according to claim 5 or 6, characterized in that: all working horn (310) are ultrasonic horns.
8. The flexible welding apparatus of claim 7, wherein: the working welding head (310) located in the first station area (101) is a special ultrasonic welding head, and the working welding head (310) located in the second station area (102) is a universal ultrasonic welding head.
9. Welding method, characterized in that, for a flexible welding apparatus according to any one of claims 1 to 8, two of said mounting platforms are located in said first station area (101) and in said second station area (102), respectively, and a matrix (600) is connected to both of said mounting platforms, further comprising the steps of:
s10, loading a workpiece on a jig (600) of the first station area (101) during first welding, and carrying out a first welding process on the workpiece of the first station area (101) by a welding assembly (300) located in the first station area (101);
s20, after all the workpieces finish corresponding welding procedures, the positions of the two mounting platforms are replaced by the replacement mechanism (200);
s30, loading the next workpiece on the mould (600) of the first station area (101), carrying out a first welding process on the workpiece of the first station area (101) by the welding assembly (300) positioned in the first station area (101), and carrying out a second welding process on the workpiece of the second station area (102) by the welding assembly (300) positioned in the second station area (102);
s40, after all the workpieces finish corresponding welding procedures, the positions of the two mounting platforms are replaced by the replacement mechanism (200);
s50, unloading the workpiece from the moulding bed (600) of the first station area (101);
s60, repeating the steps S30 to S50 until welding of all workpieces is completed.
10. The welding method of claim 9, wherein: each moulding bed (600) is connected with a pressing tool (800) which can be opened and closed.
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| CN202210977920.3A CN115041807B (en) | 2022-08-16 | 2022-08-16 | Welding method |
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| JP2011121405A (en) * | 2009-12-08 | 2011-06-23 | Mitsubishi Motors Corp | Vehicle body production device |
| CN204106032U (en) * | 2014-10-13 | 2015-01-21 | 沈阳峰点科技有限公司 | A kind of blade movement unit of automatic medical X-ray beam-defining clipper |
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| CN115041807B (en) | 2022-11-29 |
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