Robot welding device for door panel of van

Abstract

The invention provides a van vehicle door panel robot welding device. The van vehicle door panel robot welding device comprises a bottom plate; a clamping device is installed on the top face of the bottom plate, a to-be-welded frame is clamped on the clamping device, a material taking rail is installed on the top face of the bottom plate and located on one side of the clamping device, and a walking type material taking device is installed on the material taking rail. The clamping device comprises an overturning assembly, the overturning assembly is installed on the top face of the bottom plate, and the output end of the overturning assembly is connected with a lifting rotating assembly. The walking type material taking device comprises an I-shaped rod, the I-shaped rod is slidably connected into the material taking rail, one side of the I-shaped rod is fixedly connected with an extension plate, and the bottom face of the extension plate is fixedly connected with a walking motor. The positioning frame assembly comprises a lifting pneumatic rod, and the top face of the clamping plate is fixedly connected with the lifting pneumatic rod. Through mutual cooperation of the clamping assembly, the material taking rail, the walking type material taking device and the walking type welding device, the to-be-welded frame is continuously welded.

Description

Technical Field

[0001] The invention relates to the technical field of van door panel welding, and in particular to a van door panel robot welding device. Background Art

[0002] In the automotive manufacturing, logistics and transportation industries, cargo box door panels are an important component, and their structure is usually composed of an aluminum alloy frame and an external panel. Aluminum alloy frames are widely used in the manufacture of cargo box door panels due to their lightweight, high strength and corrosion resistance. In the manufacturing process of aluminum alloy frames, welding is one of the key processes, and its quality directly affects the overall performance and service life of the door panel.

[0003] The traditional cargo box door panel welding process usually includes the following steps: First, the staff assembles multiple groups of aluminum alloy rods of different lengths on the clamping platform according to the design requirements; after the assembly is completed, the aluminum alloy rods are fixed with a clamp to ensure the accurate position of the rods during the welding process; then, the welding manipulator is started to weld the joints of the aluminum alloy rods; finally, after the welding is completed, the clamp is released, the welded frame is removed, and a second assembly is performed to facilitate the subsequent welding of the external panel. However, the above traditional welding process has the following technical defects:

[0004] 1. Since aluminum alloy rods need to be loaded and assembled one by one, the process is cumbersome and time-consuming. The entire assembly and clamping process is highly dependent on manual operation, which is not only inefficient, but also prone to insufficient assembly accuracy due to human errors, thus affecting welding quality.

[0005] 2. Since the loading and clamping process takes a long time, the overall production efficiency is low and it is difficult to meet the needs of large-scale production. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a van door panel robot welding device, which solves the problems mentioned in the background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A robot welding device for a van door panel comprises a base plate; a clamping device is installed on the top surface of the base plate, a frame to be welded is clamped on the clamping device, a material picking track is installed on the top surface of the base plate and on one side of the clamping device, a walking material picking device is installed on the material picking track, and a walking welding device is installed on the top surface of the base plate and on the other side of the clamping device; the clamping device comprises a flipping assembly, a flipping assembly is installed on the top surface of the base plate, a lifting and rotating assembly is connected to the output end of the flipping assembly, a clamping plate is installed on one end of the lifting and rotating assembly, a positioning frame assembly is installed on the top surface of the clamping plate, positioning assemblies are installed on the top surface of the clamping plate and on both sides of the positioning frame assembly, and the top surface of the clamping plate and on the fixed A one-way clamping assembly and a multi-way clamping assembly are installed inside the positioning frame assembly; the walking type material picking device includes an I-beam, an I-beam is slidably connected in the material picking track, one side of the I-beam is fixedly connected to an extension plate, the bottom surface of the extension plate is fixedly connected to a walking motor, the output shaft end of the walking motor is fixedly connected to a walking wheel, the surface of the walking wheel is in contact with one side of the material picking track, and the bottom surface of the I-beam is respectively installed with a first material picking component, a second material picking component and an auxiliary positioning component; the positioning frame assembly includes a lifting pneumatic rod, the top surface of the clamping plate is fixedly connected to a lifting pneumatic rod, the output end of the lifting pneumatic rod is fixedly connected to a first placing rod, and second placing rods are fixedly connected at equal intervals between two groups of the first placing rods.

[0009] Furthermore, the frame to be welded includes a C-shaped long rod and a short rod, one side of the C-shaped long rod is provided with placement holes at equal intervals, and there are two groups of C-shaped long rods. The C-shaped long rod is placed on the surface of the first placement rod, and an extension piece is fixedly connected to the lower part of the other side of the C-shaped long rod, and the two ends of the short rod are respectively plugged into the placement holes. The short rod is designed in a "J" shape, and there are 7 groups of short rods. The short rods are placed on the surface of the second placement rod.

[0010] Furthermore, the first material picking component includes a first lifting pneumatic rod, the middle part of the bottom surface of the I-beam is fixedly connected to the first lifting pneumatic rod, the output end of the first lifting pneumatic rod is fixedly connected to an H-shaped hollow tube, the bottom surface of the H-shaped hollow tube is fixedly connected to a first vacuum suction cup at equal intervals, and a short rod is adsorbed on the bottom surface of the first vacuum suction cup.

[0011] Furthermore, the second material picking component includes a second lifting pneumatic rod, and the two ends of the bottom surface of the I-beam are respectively fixedly connected to the second lifting pneumatic rod, the output end of the second lifting pneumatic rod is fixedly connected to a mouth-shaped hollow frame, and the two ends of the bottom surface of the mouth-shaped hollow frame are respectively fixedly connected to a second vacuum suction cup, and the bottom surface of the second vacuum suction cup adsorbs a C-shaped long rod.

[0012] Furthermore, the auxiliary positioning component includes a third lifting pneumatic rod, the two ends of the bottom surface of the I-beam rod are respectively fixedly connected with the third lifting pneumatic rod, the output end of the third lifting pneumatic rod is fixedly connected with a mouth-shaped rod, the two ends of the bottom surface of the mouth-shaped rod are respectively fixedly connected with a U-shaped clamping plate, the two ends of the short rod are located in the U-shaped clamping plate, one end of the C-shaped long rod is in contact with one side of the U-shaped clamping plate, the two ends of the top surface of the mouth-shaped rod are respectively fixedly connected with a rectangular sleeve, a rectangular rod is slidably connected in the rectangular sleeve, one end of the rectangular rod is fixedly connected with a blocking plate, and a telescopic pneumatic rod is fixedly connected to one side of the blocking plate and located between the mouth-shaped rods.

[0013] Furthermore, the flip assembly includes a base, both ends of the base are respectively threadedly connected with a balancing threaded rod, the bottom surface of the balancing threaded rod is rotatably connected to a support plate, one end of the top surface of the base is fixedly connected to a Y-shaped rod, the top surface of the Y-shaped rod is rotatably connected to a lifting and rotating assembly, and the other end of the top surface of the base is rotatably connected to a flip pneumatic rod through a lug and a pin shaft.

[0014] Furthermore, the lifting and rotating assembly includes a plate, one end of the flip pneumatic rod is rotatably connected to the plate through a lug cooperating with a pin shaft, a dovetail groove is provided on one side of the plate, a lifting threaded rod is rotatably connected in the dovetail groove, one side of the plate is fixedly connected to a lifting motor, an output shaft end of the lifting motor is rotatably connected to the lifting threaded rod through a sprocket cooperating with a chain, an outer surface of the lifting threaded rod is threadedly connected to a lifting plate, one side of the lifting plate is fixedly connected to a rotating motor, an output shaft end of the rotating motor is rotatably connected to a rotating shaft through a worm cooperating with a worm wheel, and one end of the rotating shaft is fixedly connected to a clamping plate.

[0015] Furthermore, the positioning assembly includes a first column, the top surface of the clamping plate is fixedly connected to the first column, one side of the first column is rotatably connected to a positioning cylinder via a lug and a pin, the output end of the positioning cylinder is rotatably connected to a first pressure rod via a lug and a pin, and the top surface of the first column is rotatably connected to the first pressure rod via a lug and a pin.

[0016] Furthermore, the one-way clamping assembly includes a second column, the top surface of the clamping plate is fixedly connected to the second column, one side of the second column is fixedly connected to a first lifting pneumatic rod, the output end of the first lifting pneumatic rod is fixedly connected to a flip rack, the upper part of one side of the second column is rotatably connected to a second pressure rod through a first clamping shaft, the surface of the first clamping shaft is fixedly connected to a first flip gear, and the first flip gear is meshingly connected to the flip rack.

[0017] Furthermore, the multi-directional clamping assembly includes a T-shaped column, the top surface of the clamping plate is fixedly connected to the T-shaped column, the two ends of one side of the T-shaped column are respectively rotatably connected to the third pressure rod through the second clamping shaft, the surface of the second clamping shaft is fixedly connected to the second flipping gear, the surface of the T-shaped column is fixedly connected to the second lifting pneumatic rod, the output end of the second lifting pneumatic rod is fixedly connected to the U-shaped rack, the U-shaped rack is meshingly connected to the second flipping gear, one side of the T-shaped column is fixedly connected to the side clamping pneumatic rod, and the output end of the side clamping pneumatic rod is fixedly connected to the side plate.

[0018] The present invention provides a robot welding device for van door panels. Compared with the prior art, it has the following beneficial effects:

[0019] 1. Through the cooperation of the first material-picking component, the second material-picking component and the auxiliary positioning component, it is possible to ensure the accurate assembly position when assembling the C-shaped long rod and the short rod, so as to avoid the assembled frame to be welded from being unable to be installed on the positioning frame assembly. At the same time, after the loading is completed, the secondary loading can be carried out during the welding period. After the welding is completed, the secondary installation time is reduced, and the overall work efficiency is accelerated;

[0020] 2. Through the cooperation of the flip assembly and the lifting and rotating assembly, the frame to be welded can be rotated from a horizontal state to a vertical state during welding, so as to facilitate the subsequent welding. When one end is welded, the other end can also be welded. After the welding is completed, it can also facilitate the subsequent unloading.

[0021] 3. Through the cooperation of the positioning assembly, the one-way clamping assembly and the multi-directional clamping assembly, the frame to be welded can be fixed on the positioning frame assembly, which is convenient for later welding. At the same time, through multiple sets of clamping, it can also avoid large gaps at the joints during welding, thereby affecting the welding results. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 The overall structural diagram of the present invention is shown;

[0024] Figure 2 The overall cross-sectional structure schematic diagram of the present invention is shown;

[0025] Figure 3 The schematic diagram of the structure of the walking type material taking device of the present invention is shown;

[0026] Figure 4 A schematic diagram of the partial cross-section structure of the walking type material taking device of the present invention is shown;

[0027] Figure 5 A schematic diagram of the structure of the clamping device of the present invention is shown;

[0028] Figure 6 The schematic diagram of the structure of the lifting and rotating assembly of the present invention is shown;

[0029] Figure 7 A schematic diagram of the partial cross-sectional structure of the lifting and rotating assembly of the present invention is shown;

[0030] Figure 8 A schematic diagram of the structure of the clamping plate of the present invention is shown;

[0031] Fig. 9 The schematic diagram of the structure of the frame to be welded of the present invention is shown;

[0032] Fig.10 A schematic diagram of the structure of the one-way clamping assembly of the present invention is shown;

[0033] Fig.11 A schematic diagram of the structure of the positioning assembly of the present invention is shown;

[0034] Fig.12 A schematic diagram of the structure of the multi-directional clamping assembly of the present invention is shown;

[0035] As shown in the figure: 1. bottom plate; 2. clamping device; 21. flip assembly; 211. base; 212. balance threaded rod; 213. support plate; 214. Y-shaped rod; 215. flip pneumatic rod; 22. lifting and rotating assembly; 221. plate; 222. dovetail groove; 223. lifting threaded rod; 224. lifting motor; 225. lifting plate; 226. rotating motor; 227. rotating shaft; 23. clamping plate; 24. positioning frame assembly; 241 , lifting pneumatic rod; 242, first placement rod; 243, second placement rod; 25, positioning assembly; 251, first column; 252, positioning cylinder; 253, first pressure rod; 26, one-way clamping assembly; 261, second column; 262, first lifting pneumatic rod; 263, flip rack; 264, first clamping shaft; 265, second pressure rod; 266, first flip gear; 27, multi-directional clamping assembly; 271, T-column; 272, second Clamping shaft; 273, third pressure rod; 274, second flip gear; 275, second lifting pneumatic rod; 276, U-shaped rack; 277, side clamping pneumatic rod; 278, side plate; 3, frame to be welded; 31, C-shaped long rod; 32, short rod; 33, placement hole; 34, extension sheet; 4, material retrieving track; 5, walking material retrieving device; 51, I-shaped rod; 52, extension plate; 53, walking motor; 54, walking wheel; 55, first material retrieving component; 55 1. The first lifting pneumatic rod; 552. H-shaped hollow tube; 553. The first vacuum suction cup; 56. The second material-picking component; 561. The second lifting pneumatic rod; 562. The mouth-shaped hollow frame; 563. The second vacuum suction cup; 57. The auxiliary positioning component; 571. The third lifting pneumatic rod; 572. The mouth-shaped rod; 573. The U-shaped clamping plate; 574. The rectangular sleeve; 575. The rectangular rod; 576. The blocking plate; 577. The telescopic pneumatic rod; 6. The walking welding device. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1

[0038] In order to solve the technical problems in the background technology, a van door panel robot welding device is provided as follows:

[0039] Combination Figure 1-Figure 12As shown, a robot welding device for a van door panel provided by the present invention comprises a base plate 1; a clamping device 2 is installed on the top surface of the base plate 1, a frame 3 to be welded is clamped on the clamping device 2, a material taking track 4 is installed on the top surface of the base plate 1 and located on one side of the clamping device 2, a walking material taking device 5 is installed on the material taking track 4, and a walking welding device 6 is installed on the top surface of the base plate 1 and located on the other side of the clamping device 2; the clamping device 2 comprises a flipping assembly 21, a flipping assembly 21 is installed on the top surface of the base plate 1, a lifting and rotating assembly 22 is connected to the output end of the flipping assembly 21, a clamping plate 23 is installed on one end of the lifting and rotating assembly 22, a positioning frame assembly 24 is installed on the top surface of the clamping plate 23, and positioning assemblies 25 are respectively installed on the top surface of the clamping plate 23 and on both sides of the positioning frame assembly 24, and the top surface of the clamping plate 23 and on the positioning frame assembly 2 4 is internally installed with a one-way clamping assembly 26 and a multi-directional clamping assembly 27; the walking type material picking device 5 includes an I-beam 51, the I-beam 51 is slidably connected in the material picking track 4, one side of the I-beam 51 is fixedly connected with an extension plate 52, the bottom surface of the extension plate 52 is fixedly connected with a walking motor 53, the output shaft end of the walking motor 53 is fixedly connected with a walking wheel 54, the surface of the walking wheel 54 is in contact with one side of the material picking track 4, and the bottom surface of the I-beam 51 is respectively installed with a first material picking component 55, a second material picking component 56 and an auxiliary positioning component 57; the positioning frame assembly 24 includes a lifting pneumatic rod 241, the top surface of the clamping plate 23 is fixedly connected with the lifting pneumatic rod 241, the output end of the lifting pneumatic rod 241 is fixedly connected with a first placement rod 242, and the two groups of first placement rods 242 are fixedly connected with second placement rods 243 at equal intervals.

[0040] The walking material taking device 5 can realize splicing of multiple groups of C-shaped long rods 31 and short rods 32 into the frame to be welded 3. At the same time, the walking material taking device 5, in cooperation with the material taking track 4, can realize the transportation of the frame to be welded 3 to the positioning frame assembly 24, which is convenient for the subsequent welding.

[0041] By means of the mutual cooperation of the positioning assembly 25, the one-way clamping assembly 26 and the multi-way clamping assembly 27 in the clamping device 2, the frame 3 to be welded can be fixed on the positioning frame assembly 24. After fixation, by means of the mutual cooperation of the flipping assembly 21, the lifting and rotating assembly 22 and the clamping plate 23, the frame assembly 3 to be welded in a horizontal state can be turned into a vertical state, which is convenient for subsequent welding.

[0042] In this embodiment, the welding frame 3 includes a C-shaped long rod 31 and a short rod 32. One side of the C-shaped long rod 31 is provided with placement holes 33 at equal intervals. There are two groups of C-shaped long rods 31. The C-shaped long rod 31 is placed on the surface of the first placement rod 242. The lower part of the other side of the C-shaped long rod 31 is fixedly connected with an extension piece 34. The two ends of the short rod 32 are respectively plugged into the placement holes 33. The short rod 32 is designed in a "J" shape. There are 7 groups of short rods 32. The short rods 32 are placed on the surface of the second placement rod 243. The first material-picking component 55 includes a first lifting pneumatic rod 551, the middle of the bottom surface of the I-shaped rod 51 is fixedly connected to the first lifting pneumatic rod 551, the output end of the first lifting pneumatic rod 551 is fixedly connected to an H-shaped hollow tube 552, the bottom surface of the H-shaped hollow tube 552 is fixedly connected to first vacuum suction cups 553 at equal intervals, and the bottom surface of the first vacuum suction cups 553 adsorbs short rods 32. The second material-picking component 56 includes a second lifting pneumatic rod 561, and the two ends of the bottom surface of the I-shaped rod 51 are respectively fixedly connected to the second lifting pneumatic rods 561. The lowering pneumatic rod 561, the output end of the second lifting pneumatic rod 561 is fixedly connected to the mouth-shaped hollow frame 562, the two ends of the bottom surface of the mouth-shaped hollow frame 562 are respectively fixedly connected to the second vacuum suction cup 563, the bottom surface of the second vacuum suction cup 563 adsorbs the C-shaped long rod 31, the auxiliary positioning component 57 includes a third lifting pneumatic rod 571, the two ends of the bottom surface of the I-shaped rod 51 are respectively fixedly connected to the third lifting pneumatic rod 571, the output end of the third lifting pneumatic rod 571 is fixedly connected to the mouth-shaped rod 572, the mouth-shaped The two ends of the bottom surface of the rod 572 are fixedly connected with a U-shaped clamping plate 573, the two ends of the short rod 32 are located in the U-shaped clamping plate 573, one end of the C-shaped long rod 31 is in contact with one side of the U-shaped clamping plate 573, the two ends of the top surface of the mouth-shaped rod 572 are fixedly connected with a rectangular sleeve 574, a rectangular rod 575 is slidably connected in the rectangular sleeve 574, one end of the rectangular rod 575 is fixedly connected with a blocking plate 576, and a telescopic pneumatic rod 577 is fixedly connected to one side of the blocking plate 576 and located between the mouth-shaped rod 572.

[0043] Through the cooperation among the first material taking component 55 , the second material taking component 56 and the auxiliary positioning component 57 , it is possible to ensure the accurate assembly position when assembling the C-shaped long rod 31 and the short rod 32 , thereby preventing the assembled frame 3 to be welded from being unable to be installed on the positioning frame assembly 24 .

[0044] Embodiment 2

[0045] like Figure 1-Figure 12 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0046] The flip assembly 21 includes a base 211, and the two ends of the base 211 are respectively threadedly connected with a balancing threaded rod 212, and the bottom surface of the balancing threaded rod 212 is rotatably connected to a support plate 213, and one end of the top surface of the base 211 is fixedly connected to a Y-shaped rod 214, and the top surface of the Y-shaped rod 214 is rotatably connected to a lifting and rotating assembly 22, and the other end of the top surface of the base 211 is rotatably connected to a flip pneumatic rod 215 through a lug and a pin shaft, and the lifting and rotating assembly 22 includes a plate 221, and one end of the flip pneumatic rod 215 is rotatably connected to the plate 221 through a lug and a pin shaft, and the plate A dovetail groove 222 is provided on one side of 221, and a lifting threaded rod 223 is rotatably connected in the dovetail groove 222. A lifting motor 224 is fixedly connected to one side of the plate 221. The output shaft end of the lifting motor 224 is rotatably connected to the lifting threaded rod 223 through a sprocket and a chain. The outer surface of the lifting threaded rod 223 is threadedly connected to a lifting plate 225. One side of the lifting plate 225 is fixedly connected to a rotating motor 226. The output shaft end of the rotating motor 226 is rotatably connected to a rotating shaft 227 through a worm and a worm wheel. One end of the rotating shaft 227 is fixedly connected to the clamping plate 23.

[0047] By cooperating with the flip assembly 21 and the lifting and rotating assembly 22, the frame 3 to be welded can be rotated from a horizontal state to a vertical state during welding to facilitate subsequent welding. When one end is welded, the other end can also be welded. After welding is completed, it can also facilitate subsequent unloading.

[0048] Embodiment 3

[0049] like Figure 1-Figure 12 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0050] The positioning assembly 25 includes a first column 251, the top surface of the clamping plate 23 is fixedly connected to the first column 251, one side of the first column 251 is rotatably connected to a positioning cylinder 252 through a lug matching pin shaft, the output end of the positioning cylinder 252 is rotatably connected to a first pressure rod 253 through a lug matching pin shaft, the top surface of the first column 251 is rotatably connected to the first pressure rod 253 through a lug matching pin shaft, the one-way clamping assembly 26 includes a second column 261, the top surface of the clamping plate 23 is fixedly connected to the second column 261, one side of the second column 261 is fixedly connected to a first lifting pneumatic rod 262, the output end of the first lifting pneumatic rod 262 is fixedly connected to a flip rack 263, the upper part of one side of the second column 261 is rotatably connected to a second pressure rod 265 through a first clamping shaft 264, the first clamping shaft The surface of 264 is fixedly connected with a first flipping gear 266, which is meshed with the flipping rack 263. The multi-directional clamping assembly 27 includes a T-shaped column 271. The top surface of the clamping plate 23 is fixedly connected with the T-shaped column 271. The two ends of one side of the T-shaped column 271 are respectively rotatably connected with the third pressure rod 273 through the second clamping shaft 272. The surface of the second clamping shaft 272 is fixedly connected with a second flipping gear 274. The surface of the T-shaped column 271 is fixedly connected with a second lifting pneumatic rod 275. The output end of the second lifting pneumatic rod 275 is fixedly connected with a U-shaped rack 276. The U-shaped rack 276 is meshed with the second flipping gear 274. One side of the T-shaped column 721 is fixedly connected with a side clamping pneumatic rod 277. The output end of the side clamping pneumatic rod 277 is fixedly connected with a side plate 278.

[0051] By the mutual cooperation of the positioning component 25, the one-way clamping component 26 and the multi-directional clamping component 27, the frame 3 to be welded can be fixed on the positioning frame component 24, which is convenient for subsequent welding. At the same time, through multiple sets of clamping, it can also avoid large gaps at the connection during welding, thereby affecting the welding results.

[0052] The working principle and use process of the present invention:

[0053] In use:

[0054] When using:

[0055] The first step is to splice the frame to be welded 31. Before splicing, the H-shaped hollow tube 552 and the mouth-shaped hollow frame 562 need to be connected to an external vacuum pump;

[0056] During splicing, first, the staff puts the short rod 32 into the corresponding U-shaped card plate 573. After all 7 groups are put in, the telescopic pneumatic rod 577 is started. The telescopic pneumatic rod 577 drives the blocking plate 576 to move toward the two ends of the short rod 32. At this time, under the action of the U-shaped card plate 573, the short rod 32 is positioned. At this time, the first lifting pneumatic rod 551 is started. The first lifting pneumatic rod 551 drives the H-shaped hollow tube 552 and the first vacuum suction cup 553 to move downward, so that the first vacuum suction cup 553 falls on the top surface of the short rod 32 and absorbs the short rod 32. At the same time, the telescopic pneumatic rod 577 drives the blocking plate 576 away from one end of the short rod 32. At this time, the staff starts to install the C-shaped When installing the long rod 31, align the placement hole 33 with one end of the short rod 32 and put it in. After placement, the telescopic pneumatic rod 577 will drive the blocking plate 576 to shrink. When shrinking, it will squeeze one side of the C-shaped long rod 31. At the same time, the other side of the C-shaped long rod 31 contacts one side of the U-shaped clamping plate 573. After contact, the second lifting pneumatic rod 561 drives the mouth-shaped hollow frame 562 and the second vacuum suction cup 563 to move downward, so that the second vacuum suction cup 563 absorbs the C-shaped long rod 31. After absorption, the first lifting pneumatic rod 551, the second lifting pneumatic rod 561 and the third lifting pneumatic rod 571 all begin to shrink. After shrinking, they are transported to the clamping device 2 through the walking wheel 54 and the walking motor 53.

[0057] The second step is to install the frame 31 to be welded;

[0058] During installation, first, start the lifting pneumatic rod 241, and the lifting pneumatic rod 241 drives the first placing rod 242 and the second placing rod 243 to move upward. When the first placing rod 242 and the second placing rod 243 move to the top of the positioning assembly 25, the one-way clamping assembly 26 and the multi-directional clamping assembly 27, stop the lifting pneumatic rod 241. At the same time, the first lifting pneumatic rod 551 and the second lifting pneumatic rod 561 drive the assembled welding frame 3 to move downward, and make the welding frame 3 stuck on the surface of the first placing rod 242 and the second placing rod 243. After placement, the first lifting pneumatic rod 551 and the second lifting pneumatic rod 561 shrink. At the same time, the lifting pneumatic rod 241 drives the first placing rod 242, the second placing rod 243 and the frame 3 to be welded to move downward; and the walking material picking device 5 can assemble the frame 3 to be welded next time when it has delivered the frame 3 to be welded, thereby reducing the problem of reducing welding efficiency due to assembly.

[0059] Step 3: Clamp and fix;

[0060] When clamping, first, the positioning cylinder 252, the first lifting pneumatic rod 262 and the second lifting pneumatic rod 275 are respectively started. When the positioning cylinder 252 moves, it will drive the first pressure rod 253 to rotate, so that the first pressure rod 253 rotates, thereby fixing the C-shaped long rod 31 on the top surface of the first placement rod 242 through the first pressure rod 253. When the first lifting pneumatic rod 262 works, it will drive the second pressure rod 265 to rotate, thereby achieving the fixation of the three groups of short rods 32 in the middle on the second placement rod 243. When the second lifting pneumatic rod 275 is working, the third pressing rod 273 can be driven to rotate, so that the other four groups of short rods 32 can be fixed. After fixing, the side clamping pneumatic rod 277 is started. When the side clamping pneumatic rod 277 is working, it drives the side plate 278 to move, so that one side of the C-shaped long rod 31 can be fixed to one side of the first placement rod 242. This clamping method avoids the situation that the welding position deviation exists during welding, and the welding seam is too large and cannot be welded during welding.

[0061] Step 4: Adjust the angle for welding:

[0062] First, start the flipping pneumatic rod 215. As the flipping pneumatic rod 215 rotates, it will drive the lifting and rotating assembly 22, the clamping plate 23, the positioning assembly 24, the positioning assembly 25, the one-way clamping assembly 26 and the multi-way clamping assembly 27 to flip along the Y-shaped rod 214. After the whole is flipped 90 degrees, stop and flip the pneumatic rod 215. At this time, the welding frame 3 as a whole faces the walking welding device 6, which is convenient for the later walking welding device 6 to weld it. During welding, the height can also be adjusted. During adjustment, start the lifting motor 224, and the lifting motor 224 drives the lifting threaded rod 223 to rotate. This drives the clamping plate 23, the positioning assembly 24, the positioning assembly 25, the one-way clamping assembly 26 and the multi-directional clamping assembly 27 to rise and fall, so as to adjust the height of the frame 3 to be welded, which is convenient for the subsequent rotation on the one hand, and on the other hand, it is convenient for better welding in the subsequent welding; when one side is welded, the rotating shaft 227 can be driven to rotate by the rotating motor 226, thereby driving the clamping plate 23, the positioning frame assembly 24, the positioning assembly 25, the one-way clamping assembly 26 and the multi-directional clamping assembly 27 to rotate, so as to switch the position of the frame 3 to be welded, so as to weld the other end later.

[0063] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0064] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A robot welding device for van door panels, characterized in that: It comprises a bottom plate; a clamping device is installed on the top surface of the bottom plate, a frame to be welded is clamped on the clamping device, a material taking track is installed on the top surface of the bottom plate and located on one side of the clamping device, a walking material taking device is installed on the material taking track, and a walking welding device is installed on the top surface of the bottom plate and located on the other side of the clamping device; The clamping device comprises a flip assembly, a flip assembly is installed on the top surface of the bottom plate, a lifting and rotating assembly is connected to the output end of the flip assembly, a clamping plate is installed on one end of the lifting and rotating assembly, a positioning frame assembly is installed on the top surface of the clamping plate, positioning assemblies are installed on the top surface of the clamping plate and on both sides of the positioning frame assembly, and a unidirectional clamping assembly and a multidirectional clamping assembly are installed on the top surface of the clamping plate and inside the positioning frame assembly; The walking type material taking device comprises an I-beam, the I-beam is slidably connected in the material taking track, an extension plate is fixedly connected to one side of the I-beam, a walking motor is fixedly connected to the bottom surface of the extension plate, a walking wheel is fixedly connected to the output shaft end of the walking motor, the surface of the walking wheel contacts one side of the material taking track, and a first material taking component, a second material taking component and an auxiliary positioning component are respectively installed on the bottom surface of the I-beam; The positioning frame assembly includes a lifting pneumatic rod, the top surface of the clamping plate is fixedly connected to the lifting pneumatic rod, the output end of the lifting pneumatic rod is fixedly connected to a first placement rod, and second placement rods are fixedly connected between two groups of the first placement rods at equal intervals.

2. A van door panel robot welding device according to claim 1, characterized in that: The frame to be welded includes a C-shaped long rod and a short rod. Placement holes are arranged at equal intervals on one side of the C-shaped long rod. There are two groups of C-shaped long rods. The C-shaped long rod is placed on the surface of a first placement rod. An extension piece is fixedly connected to the lower part of the other side of the C-shaped long rod. Both ends of the short rod are respectively plugged into the placement holes. The short rod is designed in a "J" shape. There are 7 groups of short rods. The short rods are placed on the surface of the second placement rod.

3. A van door panel robot welding device according to claim 2, characterized in that: The first material picking component includes a first lifting pneumatic rod, the middle part of the bottom surface of the I-beam is fixedly connected to the first lifting pneumatic rod, the output end of the first lifting pneumatic rod is fixedly connected to an H-shaped hollow tube, the bottom surface of the H-shaped hollow tube is fixedly connected to the first vacuum suction cup at equal intervals, and the bottom surface of the first vacuum suction cup adsorbs a short rod.

4. A van door panel robot welding device according to claim 3, characterized in that: The second material picking component includes a second lifting pneumatic rod, and the two ends of the bottom surface of the I-beam are respectively fixedly connected to the second lifting pneumatic rod, the output end of the second lifting pneumatic rod is fixedly connected to a mouth-shaped hollow frame, and the two ends of the bottom surface of the mouth-shaped hollow frame are respectively fixedly connected to a second vacuum suction cup, and the bottom surface of the second vacuum suction cup adsorbs a C-shaped long rod.

5. The van door panel robot welding device according to claim 4, characterized in that: The auxiliary positioning component includes a third lifting pneumatic rod, and the two ends of the bottom surface of the I-beam rod are respectively fixedly connected with the third lifting pneumatic rod, the output end of the third lifting pneumatic rod is fixedly connected with a mouth-shaped rod, the two ends of the bottom surface of the mouth-shaped rod are respectively fixedly connected with a U-shaped clamping plate, the two ends of the short rod are located in the U-shaped clamping plate, one end of the C-shaped long rod is in contact with one side of the U-shaped clamping plate, the two ends of the top surface of the mouth-shaped rod are respectively fixedly connected with a rectangular sleeve, a rectangular rod is slidably connected in the rectangular sleeve, one end of the rectangular rod is fixedly connected with a blocking plate, and a telescopic pneumatic rod is fixedly connected to one side of the blocking plate and located between the mouth-shaped rods.

6. A van door panel robot welding device according to claim 5, characterized in that: The flip assembly includes a base, both ends of the base are respectively threadedly connected with a balancing threaded rod, the bottom surface of the balancing threaded rod is rotatably connected to a support plate, one end of the top surface of the base is fixedly connected to a Y-shaped rod, the top surface of the Y-shaped rod is rotatably connected to a lifting and rotating assembly, and the other end of the top surface of the base is rotatably connected to a flip pneumatic rod through a lug and a pin shaft.

7. A van door panel robot welding device according to claim 6, characterized in that: The lifting and rotating assembly includes a plate, one end of the flip pneumatic rod is rotatably connected to the plate through a lug cooperating with a pin shaft, a dovetail groove is provided on one side of the plate, a lifting threaded rod is rotatably connected in the dovetail groove, a lifting motor is fixedly connected to one side of the plate, an output shaft end of the lifting motor is rotatably connected to the lifting threaded rod through a sprocket cooperating with a chain, a lifting plate is threadedly connected to the outer surface of the lifting threaded rod, a rotating motor is fixedly connected to one side of the lifting plate, an output shaft end of the rotating motor is rotatably connected to a rotating shaft through a worm cooperating with a worm wheel, and one end of the rotating shaft is fixedly connected to a clamping plate.

8. The van door panel robot welding device according to claim 7, characterized in that: The positioning assembly includes a first column, the top surface of the clamping plate is fixedly connected to the first column, one side of the first column is rotatably connected to a positioning cylinder via a lug mating pin, the output end of the positioning cylinder is rotatably connected to a first pressure rod via a lug mating pin, and the top surface of the first column is rotatably connected to the first pressure rod via a lug mating pin.

9. The van door panel robot welding device according to claim 8, characterized in that: The one-way clamping assembly includes a second column, the top surface of the clamping plate is fixedly connected to the second column, one side of the second column is fixedly connected to a first lifting pneumatic rod, the output end of the first lifting pneumatic rod is fixedly connected to a flip rack, the upper part of one side of the second column is rotatably connected to a second pressure rod through a first clamping shaft, the surface of the first clamping shaft is fixedly connected to a first flip gear, and the first flip gear is meshingly connected to the flip rack.

10. A van door panel robot welding device according to claim 9, characterized in that: The multi-directional clamping assembly includes a T-shaped column, the top surface of the clamping plate is fixedly connected to the T-shaped column, the two ends of one side of the T-shaped column are respectively rotatably connected to the third pressure rod through the second clamping shaft, the surface of the second clamping shaft is fixedly connected to the second flip gear, the surface of the T-shaped column is fixedly connected to the second lifting pneumatic rod, the output end of the second lifting pneumatic rod is fixedly connected to the U-shaped rack, the U-shaped rack is meshingly connected to the second flip gear, one side of the T-shaped column is fixedly connected to the side clamping pneumatic rod, and the output end of the side clamping pneumatic rod is fixedly connected to the side plate.

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