CN111889913A - A truss end face automatic welding equipment - Google Patents

Abstract

The invention provides an automatic welding equipment for the end face of a truss, which includes a feeding manipulator, a welding manipulator, a feeding conveying device, a welding positioning machine for the end face of a truss, and a truss horizontal shifter. The truss horizontal shifter includes a first conveying device, and the The truss end face welding positioning machine is located between the feeding manipulator and the welding manipulator, and the truss end face welding positioning machine is simultaneously located between the feeding conveying device and the first conveying device. The position of the conveying device and the first conveying device close to the truss end face welding positioning machine is respectively provided with a deviation correcting device. By setting the truss welding positioning machine, the position of each straight bar at the end of the truss can be positioned, which is convenient for the welding manipulator to weld. At the same time, the automatic feeding of the welding connecting rod can be realized by setting the feeding manipulator. The whole welding process does not need manual participation, and the productivity is relatively high. High and relatively low labor cost.

Description

A truss end face automatic welding equipment

technical field

The invention relates to a truss production equipment, in particular to a truss end face automatic welding equipment.

Background technique

Steel structure houses are widely used due to the fast construction speed and less construction waste on site. The floor slab of a steel structure house usually needs to be supported by trusses, which are usually prefabricated in the factory.

In traditional truss production, after the truss is conveyed from the truss forming machine, it usually includes three straight bars parallel to each other and arranged in a zigzag shape and two curved bars that are wound as scheduled and welded to each straight bar at the same time. At the end of the truss, at least the ends of the three straight bars are suspended from the two straight bars, so it is necessary to use connecting rods to weld the ends of the three straight bars to each other. The position of the truss is difficult to determine and it is easy to shake. Therefore, the welding process of the end of the truss is usually done manually, and the productivity is relatively low and the labor cost is relatively high.

In view of this, the applicant has conducted in-depth research on the above-mentioned problems, and this case came into being.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a truss end face automatic welding equipment with relatively high productivity and relatively low labor cost.

In order to achieve the above object, the present invention adopts the following technical solutions:

A truss end face automatic welding equipment includes a feeding manipulator, a welding manipulator, a feeding conveying device connected in sequence, a truss end face welding positioning machine and a truss horizontal shifter, wherein the truss horizontal shifter includes and the feed conveyor The device is located on the first conveying device on the same line, the truss end face welding positioning machine is located between the feeding manipulator and the welding manipulator, and the truss end face welding positioning machine is located at the same time. Between the first conveying devices, deviation correction devices are respectively provided at the positions of the feeding conveying device and the first conveying device close to the truss end face welding positioning machine.

As an improvement of the present invention, the truss end face welding positioning machine includes a positioning frame, and the positioning frame is provided with a lower straight rib positioning mechanism and an upper straight rib pressing mechanism arranged in a straight line in sequence. The arrangement direction of the positioning mechanism and the upper straight rib pressing mechanism is the same as the conveying direction of the feeding conveying device, and the lower straight rib positioning mechanism comprises a lower pressing plate vertically slidingly connected to the positioning frame, two A backing plate arranged in parallel with each other and fixedly connected to the lower pressing plate, a pressing cylinder for driving the lower pressing plate to slide, vertically slidingly connected to the positioning frame and located under each of the backing plates The top pressing plate, the support seat fixedly connected to the top pressing plate and the top pressing cylinder for driving the sliding of the top pressing plate, the two backing plates are vertically arranged and their arrangement direction and the lower straight rib positioning mechanism It is perpendicular to the arrangement direction of the upper straight rib pressing mechanism, and the support seat has a supporting surface that is matched with the two backing plates one-to-one respectively and a support plate that cooperates with the upper straight rib pressing mechanism. The support plate is located between the two support surfaces.

As an improvement of the present invention, there are two upper straight rib pressing mechanisms, and the two upper straight rib pressing mechanisms are respectively located on both sides of the lower straight rib positioning mechanism.

As an improvement of the present invention, the upper straight bar pressing mechanism includes a pressing base vertically slidably connected to the positioning frame and a pressing cylinder for driving the sliding of the pressing base.

As an improvement of the present invention, the truss horizontal shifter further includes a second conveying device arranged in parallel with the first conveying device, a plurality of which are respectively arranged perpendicular to the first conveying device and located in the first conveying device. A chain conveyor between the conveying device and the second conveying device, a first ferry device for conveying the truss from the first conveying device to each of the chain conveyors, and a truss for transferring the truss from each of the The second ferry device conveyed on the chain plate conveyor to the second conveying device.

As an improvement of the present invention, a plurality of positioning bars are equally spaced along the conveying direction on the conveying chain plate of at least one of the chain plate conveyors, and each of the positioning bars is aligned with the conveying direction of the corresponding chain plate conveyor. arranged vertically.

As an improvement of the present invention, the first conveying device is a chain conveying device, and the second conveying device is a roller conveying device.

As an improvement of the present invention, the conveying chain of the first conveying device is fixedly connected with a plurality of supporting plates arranged in sequence along the chain body direction of the conveying chain, and the supporting plates are located on both sides of the conveying chain. respectively fixed connection or integral connection with the limiting plate.

As an improvement of the present invention, both the first ferry device and the second ferry device include a ferry frame, located above the first conveying device or above the second conveying device, and horizontally slidably connected to the A traverse seat on the ferry frame, a traverse motor for driving the traverse seat to slide, a lift frame vertically slidably connected to the traverse seat, a lift motor for driving the lift frame to slide, and The clamping jaws are arranged on the lifting frame, the sliding direction of the traverse seat is perpendicular to the first conveying device or the second conveying device, and the lower end of the lifting frame has a A support rod arranged in parallel with the device or the second conveying device, one side of the support rod is provided with at least two draw hooks matched with the truss.

As an improvement of the present invention, the first ferry device has one support rod, and the second ferry device has three support rods arranged in sequence.

Adopting the above-mentioned technical scheme, the present invention has the following beneficial effects:

1. By setting the truss welding positioning machine, the position of each straight bar at the end of the truss can be positioned, which is convenient for the welding manipulator to weld. At the same time, the automatic feeding of the welding connecting rod can be realized by setting the feeding manipulator. The whole welding process does not require manual participation, and the productivity Relatively high and relatively low labor costs.

2. By setting two upper straight rib pressing mechanisms, it is convenient to weld and position the two ends of the truss without turning over the truss.

3. By setting the truss horizontal shifter, the truss can be automatically transported horizontally and horizontally, so that the truss after the end welding can be output horizontally, which effectively reduces the length requirements of the automatic welding equipment for the end faces of the trusses, which can reduce the length requirements of the workshop, thereby reducing the Cost of production.

4. By setting the positioning bar, the truss can be prevented from slipping relative to the chain conveyor, which is convenient for setting the working sequence.

Description of drawings

Fig. 1 is the partial structure schematic diagram of the truss end face automatic welding equipment of the present invention;

Fig. 2 is the structural schematic diagram of the use state of the truss end face welding positioning machine in the present invention;

FIG. 3 is a schematic structural diagram of another perspective of the use state of the truss end face welding positioning machine in the present invention;

4 is a schematic structural diagram of a truss horizontal shifter in the present invention;

Fig. 5 is a partial enlarged view of the position at A in Fig. 4;

Fig. 6 is a partial enlarged view of the position at B in Fig. 4;

FIG. 7 is a partial enlarged view of the position C in FIG. 4 .

The corresponding symbols in the figure are as follows:

110-feeding manipulator; 120-welding manipulator;

130-feeding conveying device; 140-connecting rod feeding device;

200-Truss end welding positioning machine;

210-positioning frame; 220-lower straight rib positioning mechanism;

221-lower pressing plate; 222-backing plate;

223-down pressure cylinder; 224-top pressure plate;

225-support seat; 226-top pressure cylinder;

227-support surface; 228-support plate;

229-guide rod; 230-upper straight rib pressing mechanism;

231-pressing seat; 232-pressing cylinder;

300-truss horizontal lift;

310-first conveying device; 311-support plate;

312-limit plate; 313-correction cylinder;

314-Push block; 315-Guide block;

320-second conveying device; 330-chain conveyor;

331-positioning bar; 340-first ferry device;

341-Ferry rack; 342-Transfer seat;

343-traverse motor; 344-lifting frame;

345 - lift motor; 346 - gripper;

347-Reducer; 348-Gear;

349 - rack; 350 - second ferry device;

351- telescopic cylinder; 352- fixed rod;

353 - active block; 354 - chevron;

355 - splint; 356 - connecting rod;

357-Support rod; 358-Retractor hook.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1 , this embodiment provides an automatic welding equipment for truss end faces, including a feeding manipulator 110 , a welding manipulator 120 , a feeding conveying device 130 connected in sequence, a truss end face welding positioning machine 200 and a truss horizontal shifter 300 , wherein the feeding manipulator 110 and the welding manipulator 120 are multi-joint series manipulators purchased directly from the market. Of course, after purchase, a welding gun needs to be installed at the end of the manipulator to form the welding manipulator 120. The welding gun can be a commonly used welding gun in truss production. The purchased multi-joint series manipulator can usually directly clamp the connecting rod for welding, but it is necessary to set a hopper for placing the connecting rod, a vibrating feeding tray or other existing connecting rod feeding device 140 beside the feeding manipulator 110 .

The truss horizontal shifter 300 includes a first conveying device 310 located on the same line as the feeding conveying device 130, and the structure of the feeding conveying device 130 is the same as that of the first conveying device 310, and its specific structure will be described below. The truss end face welding positioning machine 200 is located between the feeding manipulator 110 and the welding manipulator 120 , and the truss end face welding positioning machine 200 is simultaneously located between the feeding conveying device 130 and the first conveying device 310 . In addition, the feeding conveying device 130 and the first conveying device 310 are respectively provided with deviation correcting devices at positions close to the truss end face welding positioning machine 200 , which facilitates correcting the position of the truss on the corresponding conveying device for positioning. The deviation rectification device can be a conventional device. In this embodiment, the deviation rectification device includes two deviation rectification cylinders 313 arranged opposite to each other. A push block 314 is fixedly connected to the piston rod of the 313, and guide blocks 315 are respectively provided on both sides of the push block 314. The inclined arrangement in the direction away from the truss helps to prevent the end of the push block 314 from being stuck on the truss. Of course, the length of the push block 314 needs to be greater than the pitch of the truss curved bars.

As shown in FIGS. 2 and 3 , and with reference to FIG. 1 , the truss end face welding positioning machine 200 includes a positioning frame 210 . The pressing mechanism 230, wherein, there are two upper straight bar pressing mechanisms 230, and the two upper straight bar pressing mechanisms 230 are respectively located on both sides of the lower straight bar positioning mechanism 220, so that the truss can be aligned without turning over the truss. Both ends are welded and positioned. In addition, the arrangement direction of the lower straight bar positioning mechanism 220 and the upper straight bar pressing mechanism 230 is the same as the conveying direction of the feeding conveying device 130 .

An operation space for the truss to pass through is formed in the middle of the positioning rack 210 , and the longitudinal direction of the truss passing through the operation space is the same as the arrangement direction of the lower straight bar positioning mechanism 220 and the upper straight bar pressing mechanism 230 .

The lower straight bar positioning mechanism 220 includes a lower pressing plate 221 vertically slidably connected to the positioning frame 210, two backing plates 222 arranged in parallel with each other and fixedly connected to the lower side of the lower pressing plate, and a lower pressing plate 221 for driving the lower pressing plate 221 to slide. The pressing cylinder 223, the top pressing plate 224 vertically slidably connected to the positioning frame 210 and located under each of the backing plates 222, the support base 225 fixedly connected to the upper side of the top pressing plate 224, and the top for driving the top pressing plate 224 to move. The pressing cylinder 226, wherein the lower pressing plate 221 and the top pressing plate 224 and the positions between them are located in the operation space of the positioning rack 210, and the truss is located between the lower pressing plate 221 and the top pressing plate 224 when in use.

Both of the two backing plates 222 are arranged vertically and their arrangement direction is perpendicular to the arrangement direction of the lower straight bar positioning mechanism 220 and the upper straight bar pressing mechanism 230 . The support base 225 has a support surface 227 which is respectively matched with the two backing plates 222 one-to-one and a support plate 228 which is matched with the upper straight rib pressing mechanism 230. The support plate 228 is arranged vertically and is located between the two support surfaces 227. It is also located between the two backboards 222. Preferably, the support surface 227 is an inclined surface inclined relative to the horizontal plane, and the lower end of each backing plate 222 is respectively provided with an inclined guide surface matched with the corresponding support surface 227, so as to ensure that the straight bars are better clamped. In addition, the lower end of the backing plate 222 is provided with a notch to reduce the contact area between it and the straight bars.

The specific sliding connection structure between the lower pressing plate 221 and the top pressing plate 224 and the positioning frame 210 can be a conventional structure. In this embodiment, the lower pressing plate 221 and the top pressing plate 224 are respectively fixedly connected with sliding connections on the positioning frame 210. The guide rod 229 on the upper part can realize the sliding connection with the positioning frame 210, and can achieve a certain guiding effect. In addition, the cylinder bodies of the lower pressing cylinder 223 and the upper pressing cylinder 226 are installed on the positioning frame 210 , and the piston rod is rotatably connected to the corresponding lower pressing plate 221 or the upper pressing plate 224 .

The upper straight bar pressing mechanism 230 includes a pressing base 231 vertically slidably connected to the positioning frame 210 and a pressing cylinder 232 for driving the pressing base 231 to slide. Specifically, the two sides of the pressing base 231 are respectively provided with sliders , the positioning frame 210 is respectively provided with two slide rails that cooperate with the sliders located on both sides of the pressure base 231 , the slide blocks located on the same side of the pressure base 231 are slidably connected to the same slide rail, and the cylinder body of the cylinder 232 is compressed. It is installed on the positioning frame 210 , and its piston rod is rotatably connected to the pressing seat 231 .

Before use, each cylinder is in a retracted state, when one end of the truss penetrates into the operating space under the action of the feeding conveying device 130 (this state can be judged in a conventional manner, for example, a proximity switch or sensor is provided in the positioning rack 210 ), the lower pressure plate 221 and the top pressure plate 224 slide toward each other, so that the two lower straight bars of the truss are clamped between the corresponding backing plate 223 and the supporting surface 227, and at the same time, the pressure seat is relatively close to the end of the truss that does not penetrate into the operating space 231 slides down, so that the upper straight bar is pressed between the support plate 228 and the pressing seat 231, thereby realizing the fixation of the positions of the three straight bars; then the feeding manipulator 110 clamps a connecting rod to the end of the truss position, so that the two ends of the connecting rod are respectively pressed at the positions of the two straight bars close to the ends, and then the above connecting rods are welded to the corresponding straight bars by the welding robot 120, and then the above steps are repeated until the adjacent two Connecting rods are welded between the straight bars. Of course, when the above steps are repeated, the placement positions of the connecting rods are different; after the above steps are completed, the truss is moved to the first conveying device driven by the feeding conveying device 130 At 310, when the other end of the truss is about to pass out of the operating space, the state can be judged by conventional methods, such as setting a proximity switch or sensor on the feeding conveying device 130), and repeat the above steps to weld the end of the truss .

As shown in FIGS. 4-7 , the truss horizontal shifter 300 further includes a second conveying device 320 arranged in parallel with the first conveying device 310 , a plurality of second conveying devices 320 arranged perpendicular to the first conveying device 310 and located at the first conveying device 310 respectively. The chain conveyor 330 between the second conveying device 320, the first ferry device 340 for transporting the truss from the first conveying device 310 to each chain conveyor 330, and the first ferry device 340 for transporting the truss from each chain plate The second ferry device 350 conveyed on the conveyor 330 to the second conveying device 320, wherein the structures of the first conveying device 310 and the second conveying device 320 can be the same structure, and the first ferry device 340 and the second ferry device The structure of 350 may also be the same structure. In this embodiment, the structures of the first conveying device 310 and the second conveying device 320 are different, and the first ferry device 340 and the second ferry device 350 are also different.

The first conveying device 310 is a chain conveying device that can be directly purchased from the market. The chain conveying device adopts a double-row sprocket, and the chain conveying device has at least two chains. A plurality of support plates 311 arranged in sequence along the chain body direction of the chain conveying device are fixedly connected to the conveying chain of the chain conveying device. The support plates 311 are respectively fixedly connected or integrally connected to limit the position at positions on both sides of the conveying chain. Plate 312, it should be noted that the chain conveying device purchased in the market does not have the supporting plate 311, and needs to be welded by itself after purchase, and each supporting plate 311 is fixedly connected to all the transmissions of the chain conveying device at the same time. The support plate 311 is welded to the chain instead of each conveyor chain individually to ensure the stability of the support plate 311 . It should also be noted that, the first conveying device 310 may be composed of only one chain conveying device, or two or more chain conveying devices that are connected in series in a straight line.

The second conveying device 320 is a roller conveying device that can be purchased directly from the market, which can be composed of only one roller conveying device, or two or more roller conveying devices that are connected in series in a straight line.

The chain plate conveyor 330 is also a conveyor that can be purchased directly from the market. Preferably, a plurality of positioning bars 331 are arranged on the conveying chain plate of at least one chain plate conveyor 330 at equal intervals along its conveying direction. 331 are arranged perpendicular to the conveying direction of the corresponding chain conveyor 330 . It should be noted that the conveyor directly purchased from the market does not have the positioning bar 331 and needs to be set after purchase. In addition, in order to ensure that the chain conveyors 330 operate synchronously, in this embodiment, the chain conveyors 330 share the same conveying motor.

Both the first ferry device 340 and the second ferry device 350 include a ferry frame 341, a traverse seat 342 located above the first conveying device 310 or above the second conveying device 320 and horizontally slidably connected to the ferry frame 341, for A traverse motor 343 for driving the traverse base 342 to slide, a lift frame 344 vertically slidably connected to the traverse base 342, a lift motor 345 for driving the lift frame 344 to slide, and a gripper 346 provided on the lift frame 344, Wherein, the sliding direction of the traverse seat 342 is perpendicular to the corresponding first conveying device 310 or second conveying device 320 . The specific transmission connection structure between the traverse seat 342 and the traverse motor 343 and the lift frame 344 and the lift motor 345 can be conventional structures. In this embodiment, the traverse motor 343 is realized by a conventional chain assembly or a synchronous belt assembly. Drive connection, the output shaft of the lift motor 345 is connected with a reducer 347, the output shaft of the reducer is connected with a gear 348, and the lift frame 344 is fixedly connected with a vertically arranged rack 349 that meshes with the gear 348, through the lift motor The rotation of the driving gear 348 drives the rack 349 to move up and down, which in turn drives the lift frame 344 to slide up and down. In addition, the clamping jaws 346 can directly use the pneumatic clamping jaws (also called finger cylinders) purchased in the market. In this embodiment, the clamping jaws 346 include a telescopic cylinder 351 with the piston rod vertically facing and located above the telescopic cylinder 351 A fixed rod 352 fixedly connected to the cylinder body of the telescopic cylinder 351, a movable block 353 fixedly connected to the piston rod of the telescopic cylinder 351 and arranged in parallel with the fixed rod 352, and two herringbone-shaped rotatably connected to both ends of the movable block 353 respectively. 354, the fixed rod 352 is arranged in parallel with the chain conveyor 330, among the three ends of each herringbone piece 354, one end is rotatably connected with the movable block 353, and the other two ends are respectively rotatably connected with the splint 355 and The connecting rod 356, wherein the two clamping plates 355 are arranged opposite to each other for clamping the truss, and the ends of the two connecting rods 356 that are not connected with the corresponding herringbone piece 354 are respectively connected to the two ends of the fixed rod 352 in rotation, so that the telescopic cylinder can be used for 351 drives the two clamping plates 355 to move toward or away from each other to realize clamping. Preferably, the connecting rod 356 includes a double-headed nut and a screw screw connected to the double-headed nut respectively, so that the length of the connecting rod 356 can be easily adjusted.

The lower end of the lifting frame 344 has a support rod 357 arranged in parallel with the corresponding first conveying device 310 or the second conveying device 320. One side of the support rod 357 is provided with at least two hooks 358 which are matched with the truss. A ferry device 340 has a support rod 357, and the clamping jaws 346 on the support rod 357 are used to clamp the straight bars on the truss relatively above. The second ferry device 350 has three support rods 357 arranged in sequence, and the three support The clamping jaws 346 on the rod 357 are respectively used to clamp the three straight bars on the truss.

When in use, the truss is sent to the first conveying device 310. During the conveying process of the truss on the first conveying device 310, the position of the truss is corrected by the deviation correcting device 313. After the truss is completely conveyed to the first conveying device 310 , the truss is clamped to the chain conveyor 330 by the first ferry device 340, when the truss is conveyed to a position close to the second conveying device 320, the truss is clamped to the second conveying device by the second ferry device 350 320, and finally convey the truss out through the second conveying device 320 to realize the horizontal displacement of the truss.

The present invention has been described in detail above in conjunction with the accompanying drawings, but the embodiments of the present invention are not limited to the above-mentioned embodiments, and those skilled in the art can make various modifications to the present invention according to the prior art, such as the cylinder in the above-mentioned embodiment. Changes to hydraulic cylinders etc. belong to the protection scope of the present invention.

Claims (10)

1. A truss end face automatic welding equipment is characterized in that, comprising a feeding manipulator, a welding manipulator and a feeding conveying device, a truss end face welding positioning machine and a truss horizontal shifter connected in turn, and the truss horizontal shifter includes The first conveying device located on the same line as the feeding conveying device, the truss end face welding positioning machine is located between the feeding manipulator and the welding manipulator, and the truss end face welding positioning machine is simultaneously located in the Between the feeding conveying device and the first conveying device, deviation correction devices are respectively provided at the positions of the feeding conveying device and the first conveying device near the truss end face welding positioning machine. 2 . The truss end face automatic welding equipment according to claim 1 , wherein the truss end face welding positioning machine comprises a positioning frame, and the positioning frame is provided with a lower straight bar positioning mechanism and an upper The straight rib pressing mechanism, the arrangement direction of the lower straight rib positioning mechanism and the upper straight rib pressing mechanism is the same as the conveying direction of the feeding conveying device, and the lower straight rib positioning mechanism includes a vertical sliding connection on the The lower pressing plate on the positioning frame, the two backing plates arranged in parallel with each other and fixedly connected to the lower pressing plate respectively, the lower pressing cylinder for driving the sliding of the lower pressing plate, and the vertical sliding connection on the positioning A top pressing plate on the frame and below each of the backing plates, a support base fixedly connected to the top pressing plate, and a top pressing cylinder for driving the top pressing plate to slide, the two backing plates are vertically arranged and Its arrangement direction is perpendicular to the arrangement direction of the lower straight rib positioning mechanism and the upper straight rib pressing mechanism. The support plate matched with the straight rib pressing mechanism is located between the two support surfaces. 3. The truss end face automatic welding equipment according to claim 2, wherein there are two upper straight rib pressing mechanisms, and the two upper straight rib pressing mechanisms are respectively located in the lower straight rib positioning mechanism on both sides. 4. The truss end face automatic welding equipment according to claim 2, wherein the upper straight rib pressing mechanism comprises a pressing seat vertically slidably connected to the positioning frame and a pressing seat for driving the pressing seat Sliding compression cylinder. 5. The truss end face automatic welding equipment according to any one of claims 1-4, wherein the truss horizontal shifter further comprises a second conveying device arranged in parallel with the first conveying device, A plurality of chain conveyors respectively arranged perpendicular to the first conveying device and located between the first conveying device and the second conveying device are used for conveying the truss from the first conveying device to each of the The first ferry device on the chain plate conveyor and the second ferry device for conveying the truss from each of the chain plate conveyors to the second conveying device. 6 . The automatic welding equipment for truss end faces according to claim 5 , wherein a plurality of positioning bars are arranged at equal intervals along the conveying direction of the conveying chain plate of at least one of the chain plate conveyors, and each positioning bar is equidistant. 7 . All are arranged perpendicular to the conveying direction of the corresponding chain plate conveyor. 7 . The automatic welding equipment for truss end faces according to claim 5 , wherein the first conveying device is a chain conveying device, and the second conveying device is a roller conveying device. 8 . 8 . The automatic welding equipment for truss end faces according to claim 7 , wherein a plurality of supporting plates arranged in sequence along the chain body direction of the first conveying device are fixedly connected to the conveying chain of the first conveying device. 9 . The support plates are respectively fixedly connected or integrally connected to the limit plates at positions located on both sides of the conveying chain. 9 . The automatic welding equipment for truss end faces according to claim 5 , wherein the first ferry device and the second ferry device both comprise a ferry frame, located above the first conveying device or the second ferry device. 10 . 2. A traverse seat above the conveying device and connected horizontally on the ferry frame, a traverse motor for driving the traverse seat to slide, a lift frame vertically slidably connected to the traverse seat, For the lifting motor that drives the lifting frame to slide and the clamping jaws arranged on the lifting frame, the sliding direction of the traverse seat is perpendicular to the first conveying device or the second conveying device, and the lifting and lowering The lower end of the frame is provided with a support rod arranged in parallel with the first conveying device or the second conveying device, and at least two draw hooks matched with the truss are arranged on one side of the support rod. 10 . The automatic welding equipment for truss end faces according to claim 9 , wherein the first ferry device has one support rod, and the second ferry device has three support rods arranged in sequence. 11 .

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