CN210633100U

CN210633100U - Traffic sign welding system

Info

Publication number: CN210633100U
Application number: CN201921192817.8U
Authority: CN
Inventors: 郑永华
Original assignee: Hunan Dayong Intelligent Technology Co ltd
Current assignee: Hunan Dayong Intelligent Technology Co ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-05-29
Anticipated expiration: 2029-07-26

Abstract

The embodiment of the utility model discloses a traffic sign welding system, including the body material feeding unit that is used for carrying the aluminum plate of treating welding, the welding piece material feeding unit that is used for carrying the rib of treating welding and the welding set that is used for welding rib and aluminum plate, welding set includes strides the weldment work platform who locates body material feeding unit; the welding device comprises a slide rail arranged across the body feeding device and a friction stir welding host arranged on the slide rail and positioned above the welding workbench; the body feeding device is used for controlling the conveying distance of the aluminum plate and realizing the switching between different welding point positions between the aluminum plate and the ribs along the conveying direction of the body feeding device; the friction stir welding host computer can be followed the slide rail slides, realizes aluminum plate with between the rib with the switching of the different welding point position of body material feeding unit's direction of delivery direction vertically.

Description

Traffic sign welding system

Technical Field

The utility model relates to the field of welding technique, especially, relate to a traffic sign welding system.

Background

The manual riveting mode is the main mode of current traffic sign processing. The staff lays the sign body on the workstation with the tie earlier, then puts the specified position with the rib as required, join in marriage the brill riveting hole on sign body and rib, put aside the rib after numbering on the rib, turn over the sign body, expand into the counter bore with the riveting hole on the sign again, scribble the rivet and fill in the counter bore after the rubberizing, turn over the sign body after all counter bores are all filled with the rivet, put the rib on the sign body according to corresponding serial number again, accomplish the pressure and rivet at last. The whole processing process is very complicated, the labor intensity is high, and workers need to repeat the operation once when manufacturing a traffic sign, so that on one hand, the manual operation is easy to make mistakes, the labor intensity is high, and the manufacturing efficiency is low; on the other hand, severe vibration and a large amount of noise are generated during riveting, and long-time manual labor can cause physical injury to workers.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem that exists now, the embodiment of the utility model provides a can reduce manual operation, make efficient traffic sign welding system.

In order to achieve the above object, the embodiment of the present invention provides a technical solution that:

a traffic sign welding system comprises a body feeding device for conveying an aluminum plate to be welded, a welding piece feeding device for conveying a rib to be welded, and a welding device for welding the rib and the aluminum plate, wherein the welding device comprises a welding workbench spanned on the body feeding device; the welding device comprises a slide rail arranged across the body feeding device and a friction stir welding host arranged on the slide rail and positioned above the welding workbench; the body feeding device is used for controlling the conveying distance of the aluminum plate and realizing the switching between different welding point positions between the aluminum plate and the ribs along the conveying direction of the body feeding device; the friction stir welding host computer can be followed the slide rail slides, realizes aluminum plate with between the rib with the switching of the different welding point position of body material feeding unit's direction of delivery direction vertically.

The welding part feeding device further comprises a grabbing arm used for grabbing the ribs and a pressing part used for providing positive pressure to the ribs in the welding implementation process, and the pressing part is used for providing limiting of the welding part perpendicular to the forming direction of the welding points in the welding implementation process.

The pressing piece comprises a first-direction pressing structure, the first pressing structure comprises a mounting plate, a pressing fixture connected to the lower portion of the mounting plate, an air cylinder and a motor, the air cylinder and the motor are located above the mounting plate and connected with the pressing fixture, and the direction of a clamping groove in the pressing fixture of the first-direction pressing structure is parallel to the extending direction of the ribs to be welded.

The pressing piece further comprises a second direction pressing structure, the second pressing structure comprises a mounting plate, a pressing fixture below the mounting plate, an air cylinder and a motor, the air cylinder and the motor are located above the mounting plate and connected with the pressing fixture, and the direction of the clamping groove in the pressing fixture of the first direction pressing structure is perpendicular to the direction of the clamping groove in the pressing fixture of the second direction pressing structure.

The grabbing arm comprises a grabbing hand and a rotating shaft for controlling the grabbing hand to rotate.

The welding piece feeding device further comprises a grabbing arm support frame for supporting the grabbing arm, the grabbing arm support frame comprises an X-axis track, a Y-axis track and a Z-axis track, the grabbing arm is fixed at the bottom end of the Z-axis track, and the X-axis track, the Y-axis track and the Z-axis track jointly provide displacement in the X-axis direction, the Y-axis direction and the Z-axis direction for the grabbing arm.

The welding device further comprises platform supporting seats which are arranged on two sides of the body feeding device respectively, the welding workbench is connected to the top ends of the platform supporting seats, the number of the platform supporting seats is multiple, the bottom ends of the platform supporting seats on the same side of the body feeding device are detachably connected with the same bottom plate, and matched guiding blocks and guiding grooves are formed in front of the bottom plate.

The welding device further comprises a welding equipment support frame arranged at one end of the welding workbench, the welding equipment support frame comprises a gantry support seat arranged in parallel with the platform support seat, the height of the gantry support seat is larger than that of the platform support seat, the slide rail is connected to the top end of the gantry support seat, the bottom end of the gantry support seat and the platform support seat on the same side are detachably connected with the same bottom plate together, and a matched guide block and a matched guide groove are formed between the bottom end of the gantry support seat and the bottom plate.

The welding part feeding device comprises a conveying structure used for bearing and conveying ribs, the conveying structure comprises a conveying belt, a motor used for driving the conveying belt to move and a limiting structure arranged on the surface of the conveying belt, and the limiting structure is used for limiting accommodating spaces which are formed into a plurality of different shapes and sizes so as to accommodate the corresponding ribs with different shapes and sizes respectively.

The body feeding device comprises a conveying belt for bearing the body, the conveying belt comprises a conveying belt front end and a conveying belt rear end, the conveying belt front end comprises a plurality of independent sections, mechanical push rods arranged between the adjacent sections and a driving motor for providing power for the conveying belt, and the mechanical push rods are used for adjusting the position of the body on the conveying belt.

According to the traffic sign welding system provided by the embodiment, the welding device, the body feeding device and the welding piece feeding device can be used for realizing automatic welding between the traffic sign body aluminum plate and the ribs together, wherein the welding equipment comprises a friction stir welding host machine arranged on a slide rail, and the slide rail can provide displacement in the welding point forming direction of the friction stir welding host machine in the welding process, so that a sliding welding joint can be formed, and the welding quality of the welding joint is improved; the body feeding device can control the conveying distance of the aluminum plate, so that the aluminum plate and the ribs can be switched between different welding point positions along the conveying direction of the body feeding device; the friction stir welding host computer is followed the slide rail slides to can realize aluminum plate with between the rib with the switching of the different welding point position of body material feeding unit's direction of delivery of direction vertically, so, can realize the automation to the welding flow of traffic sign, reduce manual operation, manufacturing efficiency is high, and can ensure the welding precision.

Drawings

FIG. 1 is a schematic diagram of an automated welding system according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of the leading end of the conveyor belt in an embodiment of the present application;

FIG. 3 is a schematic view of the rear end of the conveyor belt in an embodiment of the present application;

FIG. 4 is a schematic view of a welding apparatus in an embodiment of the present application;

FIG. 5 is a schematic view of a welding station in an embodiment of the present application;

FIG. 6 is a schematic view of a welding apparatus in an embodiment of the present application;

FIG. 7 is a schematic view of a support stand of the welding apparatus in an embodiment of the present application;

FIG. 8 is a schematic view of a base plate in an embodiment of the present application;

fig. 9 is a schematic view of a conveying structure of a weldment feeding apparatus in an embodiment of the present application;

FIG. 10 is a schematic view of a weldment feed apparatus in an embodiment of the present application;

FIG. 11 is a schematic view of another perspective of an automated welding system according to an embodiment of the present application;

FIG. 12 is a schematic view of a further angle of an automated welding system according to an embodiment of the present application;

FIG. 13 is a schematic view of an automated welding system according to another embodiment of the present application

FIG. 14 is a schematic view of an X-axis weld configuration in an embodiment of the present application;

fig. 15 is a schematic view of a Y-axis welding structure in the embodiment of the present application.

Detailed Description

The technical solution of the present invention will be further elaborated with reference to the drawings and the specific embodiments of the specification. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the specific embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the following description, reference is made to the expression "some embodiments" which describe a subset of all possible embodiments, but it should be understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.

Fig. 1 is a schematic structural diagram of an automatic welding system according to an embodiment of the present invention, where the automatic welding system includes a welding device 30, a body feeding device 10, and a welding part feeding device 20. The welding device 30 includes a base 31, a welding table 33 supported by the base 31, and a welding apparatus 35 disposed above the welding table 33. The automatic welding system is used for fixing the welding part on the body in a welding mode. In the working process, the body feeding device 10 is used for conveying the body to be welded to a preset welding position; the welding part feeding device 20 is used for grabbing a welding part to be welded and conveying the welding part to a position aligned with a corresponding welding point on the body; the welding device 30 is arranged above the body feeding device 10 in a spanning manner, the welding workbench 33 is arranged above a preset welding position of the body feeding device 10, and the welding head 351 of the welding device 35 aligns the welding piece and the welding point corresponding to the body to be connected to weld.

In an alternative embodiment, the automatic welding system is a traffic sign welding system for welding traffic signs, and the body is a traffic sign body, preferably an aluminum plate. The welding spare is the rib of welding on the traffic sign body, and the rib can play the intensity of the body of supporting enhancement traffic sign and be convenient for connect the effect of fixing the settlement position on the road with the traffic sign. According to different use scenes and demands, the shape and the size of traffic sign are all inequality, along with the development of intelligent technique, can also appear gradually according to the real-time traffic flow condition intelligent display of road and the all kinds of intelligent traffic signs of control, these intelligent traffic signs probably further include the pilot lamp, the electronic screen and be used for connecting the various circuits of pilot lamp and electronic screen, make the weight of traffic sign increase, ensure the joint strength between rib and the body, will directly influence security and life that the traffic sign used. Through the embodiment of the utility model provides a traffic sign welding system need not manual operation and can realize the welding to the traffic sign of different article types. It should be noted that, in the description of the embodiments of the present application, the body may be replaced by an aluminum plate, and the welding members may be replaced by ribs.

Referring to fig. 2 and 3, the body feeding device 10 includes a conveyor belt 11 for conveying the body, a conveyor belt driving motor 12 located below the conveyor belt 11, and a sensor 13 disposed above the conveyor belt 11. The conveying belt 11 can be divided into a front conveying belt end 112 and a rear conveying belt end 113 along the conveying direction of the body, wherein the conveying driving motor 12 is arranged below the front conveying belt end 112, the sensor is arranged at a position, close to the welding position, of the front conveying belt end 112, the conveying belt of the front conveying belt end 112 is divided into a plurality of independent segments, a mechanical push rod 114 is arranged on at least one side of the conveying belt 11 between two adjacent segments, the mechanical push rod 114 can slide along the interval between two adjacent segments of the conveying belt 11, the sliding direction of the mechanical push rod 114 is perpendicular to the conveying direction, along which the body is conveyed, of the conveying belt, when the body is positioned on the conveying belt 11 and moves along the conveying direction of the conveying belt 11, the mechanical push rod 114 can abut against one side of the body, and the correct position of the body on. It should be noted that, for bodies with different sizes and shapes, the position of the mechanical push rod 114 can be adjusted accordingly, so as to ensure that the body feeding device 10 can be adapted to more application scenarios.

The sensor 13 is used for detecting the position of the body on the conveyer belt 11, when the sensor 13 detects that the body moves to the corresponding position, the sensor 13 sends a control signal to the conveyer belt driving motor 12, and the driving motor controls the conveying distance of the body according to the control signal. In this embodiment, a sensor may be disposed at one end of the front end 112 of the conveyor belt near the preset welding position, and when the sensor detects that the body moves to the current position, a control signal is sent to the conveyor belt driving motor 12 to control the conveyor belt driving motor 12 to stop. The conveyor belt driving motor 12 may control the conveying parameters of the conveyor belt, including the conveying direction, the conveying speed, the conveying distance, and the like, and in some alternative embodiments, may not include a sensor, and the operating parameters of the conveyor belt driving motor are calculated in advance according to the size of the body and the conveying parameters of the conveyor belt, so as to ensure that the body can be conveyed to the preset welding position.

Referring to fig. 4 and 5, the base 31 of the welding device 30 includes platform supports 310 respectively disposed at two sides of the body feeding device 10, and the welding table 33 is connected to top ends of the platform supports 310. The welding workbench 33 spans over the body feeding device 10, the number of the platform supporting seats 310 is multiple, the bottom ends of the platform supporting seats 310 located on the same side of the body feeding device 10 are detachably connected with the same bottom plate 313, a plurality of sheet-shaped reinforcing ribs are arranged at the connection position of each platform supporting seat 310 and the bottom plate 313 at equal intervals along the circumferential direction, the welding device 30 is integrally contacted with the ground through the bottom plate 313, and stable contact between the welding device 30 and the ground can be ensured. The welding table 33 is flat and includes a horizontal work plane. The welding device 30 further comprises a welding equipment support 36 arranged at one end of the welding table 33. The welding equipment support frame 36 includes two gantry support seats 361 respectively located on the platform support seats 310 of the two sides of the body feeding device 10 in parallel with the base 31, and a slide rail 362 connected to the top ends of the gantry support seats 361. The gantry support seat 361 is higher than the platform support seat 310, the main machine of the welding device 35 is disposed on the slide rail 362, the extending direction of the slide rail 362 is perpendicular to the conveying direction of the conveyor belt, and the main machine can slide along the slide rail 362. For convenience of understanding and description, the conveying direction of the conveying belt is defined as the Y-axis direction, and the extending direction of the slide rail 362 is the X-axis direction, that is, the sliding direction of the welding head 351 of the welding device 35 is the X-axis direction.

Referring to fig. 6, the main machine includes a welding head 351 for facing a welding point provided on the welding table 33, a spindle motor 352 for providing a high rotational speed to the welding head 351, and a deceleration motor 353 for providing a positive pressure to the welding head 351. In this embodiment, the main frame further includes a pressing structure disposed near the welding head 351, a cylinder 356 for providing power to the pressing structure, and a pressing rod 354 connected to the cylinder 356. The end of the pressing structure is provided with a pulley 355 at a position close to the welding head 351, the lowest position of the pulley 355 is approximately flush with the welding head 351, and the pulley 355 can move along the sliding direction of the sliding rail 362 according to the main machine. The main machine is further provided with a guide rail perpendicular to the extending direction of the slide rail 362, and taking the transmission direction of the conveyor belt as an axis Y and the extending direction of the slide rail 362 as an axis X, the extending direction of the guide rail is an axis Z. The spindle motor 352 is disposed on the guide rail together with the welding head 351, and the reduction motor 353 drives the spindle motor 352 to move up and down along the extending direction of the guide rail through the bearing screw rod. The deceleration motor 353 can adjust the welding accuracy by controlling the spindle motor 352 and the welding head 351 to move up and down along the guide rail together, and simultaneously provides sufficient positive pressure for the spindle motor 352 in the welding process of the welding head 351.

In an alternative embodiment, referring to fig. 7 and 8, a guiding block is further disposed on a side where the bottom end of the gantry supporting seat 361 is connected to the bottom plate 313, and optionally, a guiding block is also disposed on a side where the bottom end of the platform supporting seat 310 of the welding device 30 is connected to the bottom plate 313, and a guiding groove 314 matched with the guiding block is disposed on the bottom plate 313. The welding device 30 can adjust the installation position by the sliding of the guide block at the bottom end of the platform support seat 310 in the guide groove 314, and similarly, the welding equipment support frame 36 can also adjust the installation position by the sliding of the guide block at the bottom end of the gantry support seat 361 in the guide groove 314, thereby facilitating the realization of the multi-stage adjustment of the welding position of the body on the welding workbench 33 and the welding equipment 35. The bottom plate 313 is further provided with a horizontal adjusting structure 316, and the horizontal adjusting structure 316 can finely adjust the base 31 and the welding equipment support 36 mounted on the bottom plate 313 in the horizontal direction, so as to adjust the horizontal of the sliding rails 362 on the welding workbench 33 and the welding equipment support 36.

Referring to fig. 9 and 10, the weld feeder 20 includes a conveying structure 24 for carrying and conveying the welds, a grabber arm for grabbing the welds, and a grabber arm support 27 for providing support for the grabber arm. The conveying structure 24 includes a conveyor belt 241, a motor 243 for driving the conveyor belt 241 to move, and a limiting structure 242 disposed on the surface of the conveyor belt 241. A plurality of accommodating spaces which are separated from each other and used for accommodating different welding pieces respectively are formed on the surface of the conveyor belt 241 through the limiting structures 242, and a plurality of accommodating spaces with different shapes and sizes can be formed on the conveying structures 24 through the limiting structures 242 so as to accommodate the corresponding welding pieces with different shapes and sizes respectively, thereby facilitating the conveying of the welding pieces under different implementation scenes and the welding between the different welding pieces and the body. The grabbing arm support frame 27 comprises grabbing arm support seats, an X-axis guide rail 21, a Y-axis guide rail 22 and a Z-axis guide rail 23 which are arranged at the top ends of the grabbing arm support seats. The gripper arms are fixed to the bottom ends of the Z-axis guide rails 23. The X-axis guide rail 21 crosses the body feeding device 10 and is connected between the top ends of the grabbing arm supporting seats, the extending direction of the Y-axis guide rail 22 is perpendicular to the extending direction of the X-axis guide rail 21, a guide block is arranged at one end, connected with the X-axis guide rail 21, of the Y-axis guide rail 22, a guide groove is formed in the X-axis guide rail 21, the guide block is contained in the guide groove and can slide in the guide groove, and the Y-axis guide rail 22 slides in the guide groove of the X-axis guide rail 21 through the guide block to achieve position adjustment of the grabbing arms in the X-axis direction. One end of the Z-axis guide rail 23 connected with the Y-axis is provided with a sliding block protruding out of the surface, the Y-axis guide rail 22 is provided with a sliding groove for accommodating the sliding block and sliding in the sliding groove, and the position of the grabbing arm in the Y-axis direction is adjusted by sliding the sliding block in the sliding groove of the Y-axis guide rail 22 through the Z-axis guide rail 23. And a guide structure which is matched with each other is further arranged between one side of the sliding block and the Z-axis guide rail 23, the connection between the Z-axis guide rail 23 and the Y-axis guide rail 22 at positions with different heights of the Z-axis guide rail 23 can be adjusted through the guide structure, and the position adjustment of the grabbing arm in the Z-axis direction is realized by adjusting the connection between different positions on the Z-axis guide rail 23 and the Y-axis guide rail 22.

The grabbing arm comprises a rotating shaft 24 arranged at the tail end of the Z-axis guide rail 23, a pressing piece 26 connected with the rotating shaft 24 and used for providing pressing force for the welding piece in the welding implementation process, and a grabbing hand 25 connected with the pressing piece 26. The pressing piece 26 is substantially in a shape of a U-shaped plate, two handles 25 are arranged at the tail end of the U-shaped opening of the pressing piece 26, and the pressing piece 26 is used for providing a limit position of the welding piece perpendicular to the forming direction of the welding point in the welding implementation process. The rotating shaft 24 is disposed around the Z-axis guide rail 23 and can rotate around the Z-axis guide rail 23, so as to drive the pressing member 26 and the gripper 25 to rotate around the Z-axis guide rail 23. The gripping device 25 is provided with a gripping structure matched with the shape of a part to be gripped on a welding part, in the working process, the welding part feeding device 20 conveys the welding part to a preset position through a conveying structure, the gripping device 25 correspondingly adjusts the left-and-right moving distance along the X-axis direction, the front-and-back moving distance along the Y-axis direction and the front-and-back moving distance along the Z-axis direction to the preset position on the conveying structure through the X-axis guide rail 21, the Y-axis guide rail 22 and the Z-axis guide rail 23 respectively, the gripping device 25 grips the corresponding welding part and correspondingly adjusts the left-and-right moving distance along the X-axis direction, the front-and-back moving distance along the Y-axis direction and the front-and-back moving distance along the Z-axis direction to move to the position aligned with the corresponding welding point on the body through the X-axis guide rail 21, the Y-axis guide rail 22 and the Z-axis guide rail 23, and at The position of the welding point is aligned, and the pressing force of the pressing piece 26 on the welding piece can be adjusted through the air cylinder on the hand grip 25, so that the continuous pressing force on the welding piece during the welding process is ensured, and the welding effect is improved.

Referring to fig. 11 and 12, in the automatic welding system according to the embodiment of the present invention, the welding device 30, the body feeding device 10, and the welding part feeding device 20 can jointly realize automatic welding between the body and the welding part, wherein the main machine of the welding device 35 includes a pressing structure disposed near the welding head 351, the pressing structure includes a pulley 355 having a moving direction along the forming direction of the welding point, and the pulley 355 moves together with the forming direction of the welding point along with the welding head 351 in the welding process, so as to improve the quality of the welding point and ensure the welding effect; the welding part feeding device 20 comprises a pressing part 26 for providing positive pressure to the welding part in the welding implementation process, wherein the pressing part 26 is used for providing limit for the welding part in the welding implementation process, the limit is perpendicular to the forming direction of the welding point, relative displacement is avoided between the welding part and the body in the welding process, the welding part feeding device can be suitable for welding the welding part and the body in different directions, and welding precision and welding quality are effectively guaranteed.

Use the body to be the rib on the aluminum plate of traffic sign for the body aluminum plate of traffic sign, welding as the example, the working process of the automatic weld system that this embodiment provided can include following step: first, the aluminum plate is placed at the front end 112 of the conveyor belt, and after the position is adjusted by the mechanical pusher 114, the conveyor belt drives the aluminum plate to move toward the welding table 33 along the Y-axis direction. Secondly, after the aluminum plate triggers the sensor in the process of moving to the welding workbench 33, the driving motor controls the conveyer belt to transmit a specified distance again and then stops. At which point the aluminum sheet just reaches the designated position on the welding table 33. Thirdly, the welding device 35 moves along the slide rail 362 of the welding device support frame 36 to the position opposite to the welding position on the aluminum plate along the X-axis direction. Fourth, welding piece material feeding unit 20 snatchs the arm through the X axle guide rail 21 drive of snatching arm supporting seat top and moves to the position of conveying structure, rotation axis 24 is rotatory 90 degrees, will snatch the arm and adjust to Y axle direction from current position along X axle guide rail 21 traffic direction, Z axle guide rail 23 moves down to snatching the position, it snatchs Z axle guide rail 23 up-moving behind the rib to snatch the arm, again through X axle guide rail 21, Y axle guide rail 22 and rotation axis 24 cooperation, carry the welding position that has placed aluminum plate on the weldment work platform 33 with the rib, the cylinder on the tongs 25 starts and will grab hand 25 and rib and compress tightly down to weldment work platform 33 together this moment. Fifthly, the welding head 351 of the main machine of the welding equipment 35 is over against the welding points on the aluminum plate and the ribs for welding, meanwhile, the pressing structure on the welding equipment 35 provides downward pressing force, and the welding point part has a little displacement in the X-axis direction during welding. Sixth, after welding a point, the welding head 351 is controlled to leave the current welding point and return to the initial position. The grabbing arm and the welding equipment 35 synchronously move to the next welding point along the X-axis direction, and the fifth step is repeated until the whole rib and the aluminum plate are welded. Seventh, the grabber arms are retracted to the origin. Eighth, the welding apparatus 35 is retracted to the origin. Ninth, conveyer belt rear end 114 starts the aluminium plate that will weld the completion and moves appointed distance forward, and rib welding is accomplished until the rib welding on the monoblock aluminium plate in following rib welded position, repeats aforementioned step, so need not the automatic weld that manual operation can realize the traffic sign, reduces human cost, manufacturing efficiency is high, and ensures the welding effect.

In the sixth step, the switching of the positions of different welding points between the aluminum plate and the ribs in the direction perpendicular to the conveying direction of the body feeding device, namely the switching of the positions of different welding points along the X-axis direction, can be controlled by the friction stir welding machine by sliding a set distance along the sliding rail; in the ninth step, aluminum plate with follow between the rib along switching between the different welding point position of body material feeding unit's direction of delivery, also promptly, along switching of the different welding point position of Y axle direction, can realize through body material feeding unit control aluminum plate's transport distance.

It should be noted that, the working process of the automatic welding system refers to a process of welding the X-axis rib to the aluminum plate, and the automatic welding system can also conveniently weld the Y-axis rib to the aluminum plate, and at this time, the working process of the automatic welding system may include the following steps: first, the aluminum plate is placed at the front end 112 of the conveyor belt, and after the position is adjusted by the mechanical pusher 114, the conveyor belt drives the aluminum plate to move toward the welding table 33 along the Y-axis direction. Secondly, after the aluminum plate triggers the sensor in the process of moving to the welding workbench 33, the driving motor controls the conveyer belt to transmit a specified distance again and then stops. At which point the aluminum sheet just reaches the designated position on the welding table 33. Thirdly, the rib conveyer belt conveys Y-axis ribs to a set position, the grabbing arm is adjusted to be in a Y direction after rotating for 90 degrees, the Z-axis guide rail moves downwards to the grabbing position, the grabbing head grabs the ribs and then moves upwards, the grabbing arm is matched with the rotating shaft 24 through the X-axis guide rail 21, the Y-axis guide rail 22, and the ribs are conveyed to the welding position of the aluminum plate on the welding workbench 33. Fourth, the welding device 35 is moved along the rail 362 to the welding position. Fifthly, the welding head 351 of the main machine of the welding device 35 is over against the welding points on the aluminum plate and the ribs for welding, meanwhile, the pressing structure on the welding device 35 provides downward pressing force, and the welding point part has a little displacement in the Y-axis direction during welding. Sixth, after welding a point, the welding head 351 is controlled to leave the current welding point and return to the initial position. The grabbing arm and the welding equipment 35 synchronously move to the next welding point along the Y-axis direction, and the fifth step is repeated until the whole rib and the aluminum plate are welded. Seventh, the grabber arms are retracted to the origin. Eighth, the welding apparatus 35 is retracted to the origin. Ninth, conveyer belt rear end 114 starts the aluminium plate that will weld the completion and moves appointed distance forward, and rib welding on the next Y axle rib welded position, the aforesaid step of repetition is accomplished until the monoblock aluminium plate, so need not the automatic weld that artificial operation can realize the traffic sign, reduces human cost, manufacturing efficiency is high, and ensures the welding effect.

Among the above-mentioned automatic weld system, welding equipment 35 adopts friction stir welding host computer equipment, welds the body aluminum plate of realization to the traffic sign through friction stir welding, can promote welding quality. Wherein, through designing welding equipment support frame 36, the friction stir welding host computer is installed on the slide rail 362 of welding equipment support frame 36 and can slide along the direction of slide rail 362, can adjust the friction stir welding host computer on the one hand and make it just can be to the welding point position, and on the other hand can provide the welding point position removal redundancy of friction stir welding host computer in implementing the welding process, forms gliding welding joint point, promotes the welding quality of welding joint point. In addition, a pressing structure is arranged at a position close to the welding head 351, and a pulley 355 arranged at the tail end of the pressing structure can provide downward pressing force in the welding implementation process and can slide along with the movement of the welding head 351, so that a better auxiliary pressing effect can be obtained. Welding piece material feeding unit 20 sets up limit structure 212 through on the conveyer belt 211 can the different welding pieces of holding, snatch arm support frame 27 through the setting and provide at the X axle direction for snatching the arm, the motion ability of Y axle direction and Z axle direction, and should snatch the arm and be provided with rotation axis 24 and compress tightly piece 26, snatch arm support frame 27 and rotation axis 24, it can cooperate jointly to compress tightly piece 26, can realize different shapes, the back removal to the welding position is snatched to the welding piece of size, and just to the accurate location of welding point position, moreover, the steam generator is simple in structure, the snatching of welding piece is more nimble, and applicable in more application scenes.

It is to be understood that the structure of the automatic welding system is not limited to the manner provided in the above-described embodiment, and alternatively, the pressing member 26 of the weldment feeder 20 may not be limited to being disposed between the hand grip 25 and the rotating shaft 24, and other independent pressing structures may be employed. Referring to fig. 13, unlike the previous embodiment, the grabbing arm does not include the pressing member 26 connected to the rotating shaft 24, the welding table 33 of the welding device 30 is composed of a plurality of beams parallel to each other and spaced from each other, and the welding equipment support frame 36 is provided with a beam located on the same horizontal plane as the beam of the welding table 33. This welding piece material feeding unit 20 still includes the independent compact structure who sets up on the crossbeam of welding equipment support frame 36 and welded platform's crossbeam, this independent compact structure is including being used for providing spacing first direction compact structure and the second direction compact structure of different directions to the welding piece, this embodiment is X axle compact structure 261 and Y axle compact structure 263 respectively, wherein, X axle compact structure 261 roughly aligns with the position of the soldered connection 351 of welding equipment 35, X axle compact structure 261 connects between the crossbeam of welding equipment support frame 36 and the crossbeam of weldment work platform 33, Y axle compact structure 263 connects between the crossbeam on weldment work platform 33.

The first direction pressing structure and the second direction pressing structure respectively include a mounting plate 264, a pressing clamp 265 connected below the mounting plate 264, an air cylinder 266 connected with the pressing clamp 265 and located above the mounting plate 264, and a motor 267. The direction of the clamping groove in the pressing clamp 265 of the first-direction pressing structure is parallel to the extending direction of the ribs to be welded. Referring to fig. 14, in particular, the X-axis pressing structure 261 includes a mounting plate 264, an X-axis pressing fixture 265 connected to a lower portion of the mounting plate 264, and a cylinder 266 and a motor 267 connected to the X-axis pressing fixture 265 and located above the mounting plate 264. And a first sliding block 268 which is used for connecting one end of the X-axis compression structure 261 with a beam on the welding workbench 33 and a second sliding block 268 which is used for connecting the other end of the X-axis compression structure with the beam on the welding equipment supporting frame 36 are arranged on the mounting plate 264. Be formed with the dentate draw-in groove that is used for fixed rib edge on the X axle compression anchor clamps 265, the cylinder is used for providing decurrent positive pressure for X axle compression anchor clamps 265, and motor 267 is used for providing power for the motion of X axle compression structure 261 along the crossbeam direction. This X axle compact structure 261 can include two, and the branch is located the left and right sides of crossbeam, provides the balance for compressing tightly of the left and right sides of rib. Referring to fig. 15, the Y-axis compressing structure 263 is similar to the X-axis compressing structure 261, and includes a mounting plate 264, a Y-axis compressing clamp 265 connected to the lower side of the mounting plate 264, a cylinder 266 and a motor 267 connected to the Y-axis compressing clamp 265 and located above the mounting plate 264, two sliders 268 are disposed on the mounting plate 264 and respectively connect two ends of the Y-axis compressing structure 263 to two adjacent beams spaced from each other on the welding worktable 33, and the main difference between the Y-axis compressing structure 263 and the X-axis compressing structure 261 is that the direction of the tooth-shaped slots formed on the Y-axis compressing clamp 265 and used for fixing the edges of the ribs is perpendicular to the direction of the slots on the X-axis compressing clamp. The X-axis compression structure 261 and the Y-axis compression structure 263 can slide along the extension direction of the beam on which they are located, and apply compression force to different positions of the welded part.

The operation of the automatic welding system shown in fig. 13 to 15 is substantially the same as that of the automatic welding system shown in the previous embodiment, and will not be described again. The difference of the method is that the positions of a Y-axis compression structure 263 and an X-axis compression structure 261 in the independent compression structure are adjusted, so that more balanced auxiliary compression force is provided for the aluminum plates and the ribs in the welding process through the Y-axis compression structure 263 and the X-axis compression structure 261, and the balanced auxiliary compression force can be provided for the welding of the aluminum plates and the ribs with different shapes and sizes in different application scenes.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A traffic sign welding system is characterized by comprising a body feeding device, a welding part feeding device and a welding device, wherein the body feeding device is used for conveying an aluminum plate to be welded, the welding part feeding device is used for conveying a rib to be welded, the welding device is used for welding the rib and the aluminum plate, and the welding device comprises a welding workbench which is arranged across the body feeding device; the welding device comprises a slide rail arranged across the body feeding device and a friction stir welding host arranged on the slide rail and positioned above the welding workbench; the body feeding device is used for controlling the conveying distance of the aluminum plate and realizing the switching between different welding point positions between the aluminum plate and the ribs along the conveying direction of the body feeding device; the friction stir welding host computer can be followed the slide rail slides, realizes aluminum plate with between the rib with the switching of the different welding point position of body material feeding unit's direction of delivery direction vertically.

2. A traffic sign welding system as recited in claim 1, wherein said weld feeder further comprises a grasping arm for grasping said ribs and a hold down for providing positive pressure to said ribs during weld application, said hold down for providing a stop for said weld perpendicular to a direction of formation of said weld during weld application.

3. A traffic sign welding system as recited in claim 2, wherein the hold down includes a first direction hold down structure, the first direction hold down structure includes a mounting plate, a hold down clamp coupled to a lower portion of the mounting plate, a cylinder coupled to the hold down clamp and a motor positioned above the mounting plate, and a direction of a slot in the hold down clamp of the first direction hold down structure is parallel to a direction of extension of the ribs to be welded.

4. A traffic sign welding system as recited in claim 3, wherein the hold down further comprises a second directional hold down structure comprising a mounting plate, a hold down clamp coupled to a lower portion of the mounting plate, a cylinder coupled to the hold down clamp and a motor positioned above the mounting plate, wherein the orientation of the slot in the hold down clamp of the first directional hold down structure is perpendicular to the orientation of the slot in the hold down clamp of the second directional hold down structure.

5. A traffic sign welding system as recited in claim 2, wherein said grabber arm comprises a hand grab and a rotating shaft for controlling rotation of said hand grab.

6. A traffic sign welding system as recited in claim 2, wherein the weld feeder further comprises a grabber arm support bracket for supporting the grabber arm, the grabber arm support bracket comprising an X-axis rail, a Y-axis rail, and a Z-axis rail, the grabber arm being secured to a bottom end of the Z-axis rail, the X-axis rail, the Y-axis rail, and the Z-axis rail collectively providing X-axis, Y-axis, and Z-axis displacement for the grabber arm.

7. A traffic sign welding system as recited in claim 1, wherein the welding device further comprises a plurality of platform supports respectively disposed at both sides of the body feeder, the welding table is connected to top ends of the platform supports, bottom ends of the plurality of platform supports located at the same side of the body feeder are detachably connected to the same base plate, and the bottom ends of the platform supports and the base plate are formed with matching guide blocks and guide grooves in front thereof.

8. The traffic sign welding system of claim 7, wherein the welding device further comprises a welding equipment support frame disposed at one end of the welding table, the welding equipment support frame comprises a gantry support base juxtaposed to the platform support base, the gantry support base has a height greater than that of the platform support base, the slide rail is connected to the top end of the gantry support base, the bottom end of the gantry support base and the platform support base on the same side are detachably connected to the same bottom plate, and a guide block and a guide groove are formed between the bottom end of the gantry support base and the bottom plate in a matching manner.

9. A traffic sign welding system as recited in claim 1, wherein said weldment feed means comprises a transport structure for carrying and transporting the ribs, said transport structure comprising a conveyor belt, a motor for driving the conveyor belt in motion, and a spacing structure disposed on a surface of the conveyor belt for defining a plurality of differently shaped and sized receiving spaces for receiving correspondingly differently shaped and sized ribs, respectively.

10. A traffic sign welding system as recited in claim 1, wherein said body feeder comprises a conveyor belt for carrying said body, said conveyor belt comprising a conveyor belt front end and a conveyor belt rear end, said conveyor belt front end comprising a plurality of individual segments, a mechanical push rod disposed between adjacent segments for adjusting the position of said body on said conveyor belt, and a drive motor for powering the conveyor belt.