A fixing device for automobile frame welding and a method of using the same

Abstract

The application discloses a fixing device for automobile frame welding and a use method thereof, and relates to the technical field of automobile frame machining, which comprises a base, and a support frame is fixedly connected to one side of the base. In the application, one side of a positioning plate is slidably connected with a fixed plate, one end of a hydraulic cylinder is fixedly connected with a limiting piece, the limiting piece is driven to move by the hydraulic cylinder, one side of the limiting piece is overlapped with a frame, a hydraulic cylinder drives the positioning plate to move, the other end of the frame is overlapped, the two ends of the frame are clamped and limited, the use height of a pressing rod and a limiting piece two can be adjusted by a hydraulic cylinder three, the top of the frame is pressed and limited by the limiting piece two, the shift of the frame during welding and overturning is reduced by limiting the two ends and the top of the frame, the fixing effect of the frame is improved, the limiting of the overturning plate is realized by the limiting rod, the limiting of the positioning plate is realized by an electric push rod and a plug-in block, and the stability of the fixed plate after overturning is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile frame processing, in particular to a fixing device for automobile frame welding and a using method thereof. BACKGROUND

[0002] The automobile frame is a frame structure crossing over the front and rear axles of the automobile and is commonly referred to as a girder and is the base body of the automobile. The automobile frame is generally composed of two longitudinal beams and several cross beams. During the processing of the automobile frame, multiple parts need to be welded.

[0003] For example, the patent CN217727640U discloses a kind of anti-deviation automobile frame welding fixing device, including workbench body, workbench body includes worktop, support leg column, rack screw hole, rack clamping groove and rack clamping beam, the upper surface of workbench body is installed with rack plate, rack plate includes installation bottom plate, nail edge slot, installation screw, installation screw, dismounting handle, stable clamping block and clamping beam slot, the upper surface of rack plate is fixedly welded with frame fixing structure, frame fixing structure includes support frame reinforcing plate, bearing main rod, support plate, support side rod, support end rod and frame limiting groove, the bottom side of worktop four corners is fixedly welded with support leg column.

[0004] In the above patent, although the support side rod and the support end rod solve the problem of easy deviation during frame welding, when the frame is lifted, the bearing main rod, the support side rod and the support end rod only contact the bottom of the frame, and the top and both ends of the frame lack limiting structures. When external equipment touches both ends of the frame, the frame will still shift, affecting the fixing effect of the frame. SUMMARY

[0005] The purpose of the present application is to provide a kind of automobile frame welding fixing device and its using method, to solve the problem that the frame is lifted, the bearing main rod, the support side rod and the support end rod only contact the bottom of the frame, and the top and both ends of the frame lack limiting structures. When external equipment touches both ends of the frame, the frame will still shift, affecting the fixing effect of the frame.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a kind of automobile frame welding fixing device, including base, the one side of base is fixedly connected with support frame, the one side of support frame is rotatably connected with turnover plate, the one side of turnover plate is fixedly connected with fixed plate, the one side of fixed plate is provided with fixed frame, positioning plate and limiting piece two, the one side of fixed frame is fixedly connected with fixed plate, the one side of fixed frame is fixedly connected with hydraulic cylinder one, the one end of hydraulic cylinder one penetrates fixed frame back and is fixedly connected with limiting piece one, the one side of fixed frame is fixedly connected with telescopic rod, the one end of telescopic rod is fixedly connected with positioning plate, the one side of positioning plate is slidably connected with fixed plate;

[0007] The fixed plate is fixedly connected with a reinforcing plate and a hydraulic cylinder three on one side, the reinforcing plate is fixedly connected with a support plate on one side, the support plate is fixedly connected with a buffer plate on one side, the support plate is penetrated by the hydraulic cylinder three on one end, the support plate is hingedly connected with a pressing rod on one end, the pressing rod is fixedly connected with a limiting piece two on one side, and the pressing rod is hingedly connected with a hinge piece on one side, the hinge piece is hingedly connected with a connecting piece on one end, and the connecting piece is fixedly connected with the support plate on one side.

[0008] Preferably, the positioning plate is fixedly connected with a support strip on one side, and the positioning plate is slidingly connected with a pressing strip on one side.

[0009] Preferably, the positioning plate is fixedly connected with a hydraulic cylinder two on one side, and the hydraulic cylinder two is fixedly connected with the fixed plate on one side.

[0010] Preferably, the turnover plate is fixedly connected with a connecting shaft on one side, the connecting shaft is inserted into the support frame, and the connecting shaft is rotatably connected with the support frame.

[0011] Preferably, one end of the connecting shaft is drivingly connected with a speed reducer, the speed reducer is fixedly connected with a mounting frame at the bottom, the mounting frame is fixedly connected with a driving motor on one side, and the output shaft of the driving motor is connected with the speed reducer.

[0012] Preferably, the two turnover plates are fixedly connected with a cross bar, the cross bar is fixedly connected with an electric push rod one on one side, the electric push rod one is fixedly connected with a plug-in piece on one end, and the plug-in piece is plugged into the positioning plate on one end.

[0013] Preferably, the base is fixedly connected with a hydraulic push rod on one side, the hydraulic push rod is provided with a limiting assembly at one end, the limiting assembly comprises an electric push rod two, a guide piece and a limiting rod, and the guide piece is fixedly connected with the hydraulic push rod on one side.

[0014] Preferably, the guide piece is slidingly connected with the base on one side, the guide piece is fixedly connected with a guide rod at the top, the guide rod is slidingly connected with the limiting rod inside, and the limiting rod is plugged into the turnover plate at the top.

[0015] Preferably, the limiting rod is fixedly connected with an electric push rod two on one side, and the electric push rod two is fixedly connected with the guide piece at the bottom.

[0016] A use method of the automobile frame welding fixing device, comprising the following steps:

[0017] S1, the automobile frame to be welded is placed on the buffer plate, the first limiting piece is moved to the side close to the automobile frame by the first hydraulic cylinder, the first limiting piece is overlapped with one end of the automobile frame, the position of the pressing strip is adjusted, the supporting strip and the pressing strip are located on the upper and lower sides of the automobile frame, the position of the positioning plate is adjusted, and the other end of the automobile frame is limited;

[0018] S2, the pressing rod is driven to rotate by the third hydraulic cylinder, the second limiting piece is moved downward under the action of the hinge piece, and is overlapped on the top of the automobile frame, so that the pressing and limiting of the automobile frame are realized, and the automobile frame is welded by using a welding device;

[0019] S3, after welding, the fixed plate is rotated by 90 degrees on the side of the supporting frame by driving the motor and the reduction box, at this time, the first electric push rod inserts the insertion piece into the positioning plate, and the positioning plate is limited;

[0020] S4, the guide piece is moved along the base, so that the guide piece moves below the turnover plate on the right side, the second electric push rod drives the limiting rod to move upward, the top of the limiting rod is inserted into the turnover plate, the turnover plate is limited and fixed, at this time, the side wall of the automobile frame can be continuously welded, and after welding, the welding seam is quickly detected by using a detection device.

[0021] Compared with the prior art, the beneficial effects of the present application are:

[0022] In the present application, one side of the positioning plate is slidably connected with the fixed plate, one end of the first hydraulic cylinder is fixedly connected with the first limiting piece, the first limiting piece is moved by driving the first hydraulic cylinder, one side of the first limiting piece is overlapped with the automobile frame, the positioning plate is moved by driving the second hydraulic cylinder, the other end of the automobile frame is overlapped, the two ends of the automobile frame are clamped and limited, the use height of the pressing rod and the second limiting piece can be adjusted by the third hydraulic cylinder, so that the top of the automobile frame is pressed and limited by the second limiting piece, the displacement of the automobile frame during welding and turnover can be reduced by limiting the two ends and the top of the automobile frame, and the fixing effect of the automobile frame is improved.

[0023] In the present application, the two turnover plates are fixedly connected with the cross bar, one side of the turnover plate is rotatably connected with the supporting frame, the turnover plate is driven to rotate on one side of the supporting frame by driving the motor and the reduction box, the fixed plate is synchronously rotated with the turnover plate, the turnover of the automobile frame is completed, the welding position of the automobile frame can be changed by the turnover of the fixed plate and the automobile frame, and the detection of the welding seam of the automobile frame is facilitated, the two turnover plates can be supported by the base, and the stability of the whole device during turnover and use can be improved.

[0024] 3、The hydraulic push rod one end is fixedly connected with the guide piece, the two ends of the electric push rod two are fixedly connected with the limiting rod and the guide piece respectively, the hydraulic push rod drives the guide piece to move, the electric push rod two drives the limiting rod to move upwards, the limiting rod is inserted into the turnover plate, the limiting of the turnover plate can be realized by the limiting rod, the limiting of the positioning plate can be realized by the electric push rod one and the plug-in block, and therefore the stability after the fixed plate is turned over can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is whole structure schematic diagram of the fixed device for automobile frame welding;

[0026] Figure 2 It is limiting rod structure installation schematic diagram of the fixed device for automobile frame welding;

[0027] Figure 3 It is electric push rod one and cross bar structure connection schematic diagram of the fixed device for automobile frame welding;

[0028] Figure 4 It is connecting shaft structure installation schematic diagram of the fixed device for automobile frame welding;

[0029] Figure 5 It is pressing strip structure installation schematic diagram of the fixed device for automobile frame welding;

[0030] Figure 6 It is hydraulic cylinder two structure installation schematic diagram of the fixed device for automobile frame welding;

[0031] Figure 7 It is limiting piece two and hinged piece structure connection schematic diagram of the fixed device for automobile frame welding.

[0032] In the drawing:

[0033] 1, fixed plate;11, fixed frame;111, hydraulic cylinder one;112, limiting piece one;12, reinforcing plate;13, positioning plate;131, support strip;132, pressing strip;133, telescopic rod;134, hydraulic cylinder two;14, hydraulic cylinder three;15, buffer plate;16, pressing rod;17, support plate;18, limiting piece two;19, hinged piece;2, turnover plate;21, cross bar;22, electric push rod one;23, connecting shaft;3, speed reducer;4, driving motor;5, limiting assembly;51, electric push rod two;52, guide rod;53, guide piece;54, limiting rod;6, support frame;7, base;71, hydraulic push rod. DETAILED DESCRIPTION

[0034] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0035] Embodiment one: refer to Figures 1-7 As shown: a kind of automobile frame welding fixing device, including base 7, one side of base 7 is fixedly connected with support frame 6, one side of support frame 6 is rotatably connected with turnover plate 2, one side of turnover plate 2 is fixedly connected with fixed plate 1, one side of fixed plate 1 is provided with fixed frame 11, positioning plate 13 and limiting piece two 18, one side of fixed frame 11 is fixedly connected with fixed plate 1, one side of fixed frame 11 is fixedly connected with hydraulic cylinder one 111, one end of hydraulic cylinder one 111 is fixedly connected with limiting piece one 112 after penetrating fixed frame 11, one side of fixed frame 11 is fixedly connected with telescopic rod 133, one end of telescopic rod 133 is fixedly connected with positioning plate 13, and one side of positioning plate 13 is slidably connected with fixed plate 1;One side of fixed plate 1 is fixedly connected with reinforcing plate 12 and hydraulic cylinder three 14, one side of reinforcing plate 12 is fixedly connected with support plate 17, one side of support plate 17 is fixedly connected with buffer plate 15, support plate 17 is penetrated by one end of hydraulic cylinder three 14, one end of support plate 17 is hinged with pressing rod 16, one side of pressing rod 16 is fixedly connected with limiting piece two 18, and one side of pressing rod 16 is hinged with hinged piece 19, one end of hinged piece 19 is hinged with connecting piece, one side of connecting piece is fixedly connected with support plate 17, one side of positioning plate 13 is fixedly connected with support strip 131, one side of positioning plate 13 is slidably connected with pressing strip 132, pressing strip 132 is connected with threaded rod by screwing, one end of threaded rod is rotatably connected with positioning plate 13, one side of positioning plate 13 is fixedly connected with hydraulic cylinder two 134, one side of hydraulic cylinder two 134 is fixedly connected with fixed plate 1.

[0036] In the embodiment, the fixed frame 11 can support the hydraulic cylinder 111, facilitate the stable movement of the hydraulic cylinder 111 driving the limiting part 112, limit one end of the automobile frame, and the hydraulic cylinder 134 can drive the movement of the positioning plate 13 on the top of the fixed plate 1, and then the other end of the automobile frame is limited by the positioning plate 13. The telescopic rod 133 is a telescopic structure of the inner rod and the outer rod in sliding connection, the fixed frame 11 can support and reinforce one end of the telescopic rod 133, and the telescopic rod 133 can guide the movement of the positioning plate 13 when the positioning plate 13 moves, so that the stability of the positioning plate 13 when moving can be improved. The supporting strip 131 and the pressing strip 132 can increase the contact area of the positioning plate 13 and the automobile frame, so that the limiting effect on the automobile frame can be improved. The buffer plate 15 facilitates the placement of the automobile frame before fixing, the supporting plate 17 can support the bottom of the buffer plate 15, and also can support the bottom of the connecting piece. The connecting piece can assist the installation and use of the hinged piece 19 on the top of the supporting plate 17. The hinged piece 19 can realize the connection between the pressing rod 16 and the connecting piece, and then support and assist the pressing rod 16 when the inclination angle of the pressing rod 16 is adjusted. The hydraulic cylinder 14 can provide power for the inclination angle adjustment of the pressing rod 16.

[0037] Embodiment two: according to Figures 1-4 As shown in the figure, one side of the turnover plate 2 is fixedly connected with the connecting shaft 23, the connecting shaft 23 is inserted into the support frame 6, and the connecting shaft 23 is rotatably connected with the support frame 6. One end of one of the connecting shafts 23 is drivingly connected with the speed reducer 3, the bottom of the speed reducer 3 is fixedly connected with the mounting frame, one side of the mounting frame is fixedly connected with the driving motor 4, the output shaft of the driving motor 4 is connected with the speed reducer 3, the two turnover plates 2 are fixedly connected with the cross bar 21, one side of the cross bar 21 is fixedly connected with the electric push rod one 22, one end of the electric push rod one 22 is fixedly connected with the plug-in piece, and one end of the plug-in piece is plugged with the positioning plate 13.

[0038] One side of the base 7 is fixedly connected with the hydraulic push rod 71, one end of the hydraulic push rod 71 is provided with the limiting assembly 5, the limiting assembly 5 comprises the electric push rod two 51, the guide piece 53 and the limiting rod 54, one side of the guide piece 53 is fixedly connected with one end of the hydraulic push rod 71, one side of the guide piece 53 is slidingly connected with the base 7, the top of the guide piece 53 is fixedly connected with the guide rod 52, the guide rod 52 is slidingly connected with the limiting rod 54 inside, the top of the limiting rod 54 is plugged with the turnover plate 2, one side of the limiting rod 54 is fixedly connected with the electric push rod two 51, and the bottom of the electric push rod two 51 is fixedly connected with the guide piece 53.

[0039] In this embodiment, the connecting shaft 23 is used to facilitate the connection between the auxiliary turnover plate 2 and the support frame 6, the driving motor 4 is used to drive the gear set inside the speed reducer 3 to rotate, the speed reducer 3 is used to adjust the rotating speed of the turnover plate 2 and the fixed plate 1, thereby realizing the turnover adjustment of the fixed plate 1, the cross rod 21 can be connected to the two turnover plates 2 to reinforce the connection between the two turnover plates 2, the cross rod 21 can support one end of the electric push rod 22 to facilitate the stable installation and use of the electric push rod 22, the electric push rod 22 can control the distance between the plug-in part and the positioning plate 13, and the plug-in part can be inserted into the positioning plate 13 to limit and fix the positioning plate 13.

[0040] At the same time, the base 7 is used to support and reinforce one side of the hydraulic push rod 71, the hydraulic push rod 71 is used to adjust the position of the guide 53, the base 7 is used to guide the movement of the guide 53, which facilitates the movement of the guide 53 towards the bottom of the turnover plate 2, the guide 53 is used to support and reinforce the bottom of the electric push rod 52, and the electric push rod 52 is used to adjust the use height of the limiting rod 54. When the limiting rod 54 is raised and lowered, the guide rod 52 can guide it.

[0041] Embodiment three: a method for using a fixing device for automobile frame welding, comprising the following steps:

[0042] Step one: place the automobile frame to be welded on the buffer plate 15, drive the limiting part 112 to move towards the side of the frame by the hydraulic cylinder 111, make the limiting part 112 overlap with one end of the frame, adjust the position of the pressing strip 132, make the supporting strip 131 and the pressing strip 132 located on the upper and lower sides of the frame, and adjust the position of the positioning plate 13 to limit the other end of the frame;

[0043] Step two: drive the pressing rod 16 to rotate by the hydraulic cylinder 3, and make the limiting part 2 move downwards under the action of the hinge 19 to overlap on the top of the frame, so as to realize the pressing and limiting of the frame, and then use the welding equipment to weld the frame;

[0044] Step three: after the welding is completed, drive the turnover plate 2 to rotate on one side of the support frame 6 by the driving motor 4 and the speed reducer 3, and make the fixed plate 1 rotate by 90°, at this time, the electric push rod 22 inserts the plug-in part into the positioning plate 13 to limit the positioning plate 13;

[0045] Step four: drive the guide 53 to move along the base 7 by the hydraulic push rod 71, make the guide 53 move below the turnover plate 2 on the right side, drive the limiting rod 54 to move upwards by the electric push rod 52, insert the top of the limiting rod 54 into the turnover plate 2 to limit and fix the turnover plate 2, at this time, the side wall of the frame connection can be continuously welded, and after the welding is completed, the welding seam can be quickly detected by the detection equipment.

[0046] The working principle and method of using the device: first, the fixed plate 1 is horizontally placed, the automobile frame is placed on the buffer plate 15, then the hydraulic cylinder one 111 drives the limiting piece one 112 to approach the frame one side, the hydraulic cylinder two 134 is used to drive the positioning plate 13 to move along the fixed plate 1, the positioning plate 13 one side approaches the frame, until the positioning plate 13 one side and the frame one end overlap, then the threaded rod is rotated on the top of the positioning plate 13, the compression strip 132 is lowered, the frame top is compressed, the positioning plate 13 and the limiting piece one 112 are used to realize the fixation of the two ends of the frame, then the extension length of the output shaft of the hydraulic cylinder three 14 is adjusted, the output shaft of the hydraulic cylinder three 14 exerts force on the compression rod 16, the compression rod 16 end rotates with the connecting place of the output shaft of the hydraulic cylinder three 14 as the center, in the process of rotating the compression rod 16, the inclination angle of the hinged piece 19 changes, at this time the compression rod 16 gradually reaches the horizontal state, the limiting piece two 18 at the bottom of the compression rod 16 compresses and fixes the frame top, after the frame is fixed, the frame can be quickly welded;

[0047] The driving motor 4 is used to drive the reduction box 3 to rotate, the reduction box 3 drives the two turnover plates 2 to rotate synchronously, the fixed plate 1 is turned over, the fixed plate 1 and the base 7 are perpendicular to each other, at this time the electric push rod one 22 is elongated, the plug-in block is inserted into the positioning plate 13, then the hydraulic push rod 71 drives the guide piece 53 to move, until the guide piece 53 one side overlaps with the support frame 6, then the electric push rod two 51 drives the limiting rod 54 to move upwards, the limiting rod 54 bottom slides in the guide rod 52, the limiting rod 54 top is inserted into the turnover plate 2, the turnover plate 2 is limited.

[0048] Although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A fixing device for automobile frame welding, comprising a base (7), one side of the base (7) being fixedly connected with a support frame (6), characterized in that: The support frame (6) is rotatably connected with a turnover plate (2) on one side, the turnover plate (2) is fixedly connected with a fixed plate (1) on one side, the fixed plate (1) is provided with a fixed frame (11), a positioning plate (13) and a limiting piece two (18) on one side, the fixed frame (11) is fixedly connected with the fixed plate (1) on one side, the fixed frame (11) is fixedly connected with a hydraulic cylinder one (111) on one side, the hydraulic cylinder one (111) is fixedly connected with a limiting piece one (112) at one end penetrating through the fixed frame (11), the fixed frame (11) is fixedly connected with a telescopic rod (133) on one side, the telescopic rod (133) is fixedly connected with the positioning plate (13) at one end, and the positioning plate (13) is slidably connected with the fixed plate (1) on one side. The fixed plate (1) is fixedly connected with a reinforcing plate (12) and a hydraulic cylinder three (14) on one side, the reinforcing plate (12) is fixedly connected with a supporting plate (17) on one side, the supporting plate (17) is fixedly connected with a buffer plate (15) on one side, the supporting plate (17) is penetrated by the hydraulic cylinder three (14) at one end, one end of the supporting plate (17) is hingedly connected with a pressing rod (16), the pressing rod (16) is fixedly connected with the limiting piece two (18) on one side, and the pressing rod (16) is hingedly connected with a hinge piece (19) on one side, one end of the hinge piece (19) is hingedly connected with a connecting piece, and the connecting piece is fixedly connected with the supporting plate (17) on one side. The positioning plate (13) is fixedly connected with a supporting strip (131) on one side, and the positioning plate (13) is slidably connected with a pressing strip (132) on one side, the pressing strip (132) is threadedly connected with a threaded rod, and the threaded rod is rotatably connected between the positioning plate (13) and one end of the positioning plate (13). The base (7) is fixedly connected with a hydraulic push rod (71) on one side, the hydraulic push rod (71) is provided with a limiting assembly (5) at one end, the limiting assembly (5) comprises an electric push rod two (51), a guide piece (53) and a limiting rod (54), and the guide piece (53) is fixedly connected with the hydraulic push rod (71) on one side. The guide piece (53) is slidably connected between the base (7) and one side, the guide piece (53) is fixedly connected with a guide rod (52) at the top, the guide rod (52) is slidably connected with the limiting rod (54) inside, and the limiting rod (54) is inserted into the turnover plate (2) at the top.

2. The fixture for welding an automobile frame according to claim 1, wherein: The positioning plate (13) is fixedly connected with a hydraulic cylinder two (134) on one side, and the hydraulic cylinder two (134) is fixedly connected with the fixed plate (1) on one side.

3. The fixture for welding an automobile frame according to claim 1, wherein: The turnover plate (2) is fixedly connected with a connecting shaft (23) on one side, the connecting shaft (23) penetrates and is arranged in the support frame (6), and the connecting shaft (23) is rotatably connected with the support frame (6).

4. The fixture for welding an automobile frame according to claim 3, wherein: One end of the connecting shaft (23) is drivingly connected with a speed reducer (3), the speed reducer (3) is fixedly connected with a mounting frame at the bottom, the mounting frame is fixedly connected with a driving motor (4) on one side, and the output shaft of the driving motor (4) is connected with the speed reducer (3).

5. The fixture for welding an automobile frame according to claim 1, wherein: Two said flip plate (2) between fixed connection has a horizontal rod (21), the horizontal rod (21) one side fixed connection has electric push rod one (22), the electric push rod one (22) one end fixed connection has plug-in piece, the plug-in piece one end and positioning plate (13) plug-in.

6. The fixture for welding an automobile frame according to claim 1, wherein: The limiting rod (54) one side fixed connection has electric push rod two (51), the electric push rod two (51) bottom and guide (53) fixed connection.

7. A method of using a fixture for welding an automobile frame, the method comprising: Use a kind of automobile frame welding fixing device described in any one of claims 1-6, comprising the following steps: S1, the automobile frame to be welded is placed on the buffer plate (15), the limiting piece one (112) is driven to the side close to the frame by hydraulic cylinder one (111), the limiting piece one (112) is overlapped with one end of the frame, the position of the pressing strip (132) is adjusted, the support strip (131) and the pressing strip (132) are located on the upper and lower sides of the frame, the position of the positioning plate (13) is adjusted, and the other end of the frame is limited; S2, the pressing rod (16) is rotated by hydraulic cylinder three (14), and the limiting piece two (18) is moved down under the action of the hinge piece (19) and is overlapped on the top of the frame, so that the pressing and limiting of the frame are realized, and the frame is welded by welding equipment; S3, after welding, the driving motor (4) and the reduction box (3) drive the flip plate (2) to rotate on the side of the support frame (6), the fixed plate (1) is rotated by 90°, the plug-in piece is inserted into the positioning plate (13) by the electric push rod one (22), and the positioning plate (13) is limited; S4, the hydraulic push rod (71) drives the guide (53) to move along the base (7), so that the guide (53) moves below the flip plate (2) on the right side, the limiting rod (54) is moved up by the electric push rod two (51), the top of the limiting rod (54) is inserted into the flip plate (2), the flip plate (2) is limited and fixed, at this time, the side wall of the frame connection can continue to be welded, after welding, the weld is quickly detected by detection equipment.

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