Automatic welding workstation for H-shaped reinforcing steel bar plates

Abstract

The utility model discloses an H-shaped steel bar plate automatic welding work station, and relates to the technical field of automatic welding. According to the technical scheme, a feeding station, a rib plate assembling station, a robot welding station, a discharging station, a transfer system and a control system are sequentially arranged, the stations are correspondingly provided with fixing structures, the transfer system is arranged on one side and used for being connected with the rib plate assembling station, the robot welding station and the discharging station, and the control system is connected with the robot welding station and the discharging station. And the control system is electrically connected to the equipment in each station. The utility model has the advantages that all the systems are matched with one another, the automation degree is higher, the number of operators can be effectively reduced, the working intensity is lower, the working efficiency can be improved through the close matching of all the stations, and finally, the risk of accidents of the operators can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic welding, in particular to an automatic welding workstation for H-shaped steel plates. Background Art

[0002] The H-shaped steel is an economic section high-efficiency profile with more optimized cross-sectional area distribution and more reasonable strength-to-weight ratio, named after its cross-section being the same as the English letter "H". Since all parts of the H-shaped steel are arranged at right angles, the H-shaped steel has the advantages of strong bending resistance in all directions, simple construction, cost savings, and light structural weight, and has been widely used.

[0003] For traditional H-shaped steel plate welding production, manual handling for loading and unloading, manual marking, manual installation and spot welding, manual operation of the workshop crane for workpiece turnover, and manual welding are all required. There are problems such as a large number of operators, high labor intensity, long auxiliary operation time, low operation efficiency, and it is difficult to avoid personal injury accidents during the production process. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide an automatic welding workstation for H-shaped steel plates to solve the problems mentioned in the background art.

[0005] The above object of the utility model is achieved through the following technical solutions:

[0006] An automatic welding workstation for H-shaped steel plates, characterized in that a loading station, a rib plate assembly station, a robot welding station, a unloading station, a transfer system and a control system are sequentially arranged along the direction of the production process, and the above stations are all provided with fixed structures. The transfer system is placed on one side and is used to connect the rib plate assembly station, the robot welding station, and the unloading station. The control system is electrically connected to the equipment in each station.

[0007] In a preferred example of the utility model, it can be further configured as: the loading station is provided with a chain conveyor and a roller conveyor. One end of the roller conveyor is placed on one side of the rib plate assembly station. The chain conveyor and the roller conveyor are arranged in an interleaved manner, and the conveying directions between the two are perpendicular.

[0008] In a preferred embodiment, the present utility model can be further configured as follows: The rib plate assembly station includes a laser marking system, a first positioner system, an auxiliary balance hoist, and an auxiliary lifting workbench. The auxiliary lifting workbench is located in the conveying direction of the H-shaped rib plate, the laser marking system is located above the auxiliary lifting workbench, the auxiliary balance hoist is located on both sides along the conveying direction of the H-shaped rib plate, the first positioner system is located on the side of the rib plate assembly station away from the loading station. The first positioner system includes two positioners and a positioner track. When the positioner runs to a certain position on the positioner track, it can be docked with the transfer system.

[0009] In a preferred embodiment, the present utility model can be further configured as follows: The transfer system is a forklift-type RGV transfer system, which consists of two forklift-type RGVs and an RGV track. The RGV track is located on one side of the rib plate assembly station, the robot welding station, and the unloading station. The forklift-type RGV is connected to the RGV track.

[0010] In a preferred embodiment, the present utility model can be further configured as follows: The robot welding station is provided with a welding robot, a robot track, and a second positioner system. The robot track is located on one side of the track where the robot welding station is located. The welding robot is connected to the robot track, and the control system is located on one side of the robot track.

[0011] In a preferred embodiment, the present utility model can be further configured as follows: The unloading station is provided with a buffer rack, a translation trolley, and a turnover machine. The translation trolley and the turnover machine are both located on one side of the buffer rack.

[0012] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0013] By setting up the loading station, the rib plate assembly station, the unloading station, the robot welding station, the transfer system, and the control system, through the mutual cooperation between each system, the degree of automation is relatively high, which can effectively reduce the number of operators, and at the same time, the operation intensity is relatively low. At the same time, through the close cooperation between each station, the operation efficiency can be improved, and finally, the risk of accidents for operators can also be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Overall layout schematic diagram of the automatic welding workstation for H-shaped rib plates;

[0015] Figure 2 Side elevation schematic diagram of the automatic welding workstation for H-shaped rib plates.

[0016] Reference Signs: 1, loading station; 2, rib plate assembly station; 3, robot welding station; 4, unloading station; 5, transfer system; 6, control system; 11, chain conveyor; 12, roller conveyor; 21, auxiliary balance crane; 22, auxiliary lifting workbench; 23, laser marking system; 24, first turntable system; 241, turntable; 242, turntable track; 31, welding robot; 32, robot track; 33, second turntable system; 41, buffer rack; 42, translation trolley; 43, tilter; 51, forklift RGV; 52, RGV track. Detailed Implementation Manner

[0017] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0018] As Figure 1-2 shown, an automatic welding workstation for H-shaped steel plates disclosed in the present technical solution is sequentially provided with a loading station 1, a rib plate assembly station 2, a robot welding station 3, an unloading station 4, a transfer system 5, and a control system 6 along the direction of the production process. And fixed structures are correspondingly provided for the above-mentioned stations. The fixed structure here is not a structure for fixing the device immobile, but refers to the fixed limit carried out to ensure the docking accuracy during the installation of each station, and does not affect the normal operation of each station. The transfer system 5 is placed on one side and is used to connect the rib plate assembly station 2, the robot welding station 3, and the unloading station 4. The control system 6 is electrically connected to the equipment in each station.

[0019] Loading station 1: A chain conveyor 11 and a roller conveyor 12 are provided. One end of the roller conveyor 12 is placed on one side of the rib plate assembly station 2. The chain conveyor 11 and the roller conveyor 12 are arranged in a staggered manner, and the conveying directions between the two are perpendicular. The H-shaped steel plate mainly consists of an H-shaped steel workpiece and a rib plate workpiece. The H-shaped steel workpiece is placed on the chain conveyor 11 by means of hoisting by a crane and manual assistance. Stock can be prepared in advance on the chain conveyor 11, that is, inventory can be stored. The chain conveyor 11 lifts the H-shaped steel to a certain height and conveys it along its width direction onto the roller conveyor 12. Subsequently, the chain conveyor 11 descends to make the H-shaped steel fall onto the roller conveyor 12.

[0020] The roller conveyor 12 conveys the H-shaped steel along its length direction to the stiffener assembly station 2. The stiffener assembly station 2 includes a laser marking system 23, a first positioner system 24, an auxiliary balance crane 21, and an auxiliary lifting workbench 22. The auxiliary lifting workbench 22 is located in the conveying direction of the H-shaped steel plate, the laser marking system 23 is located above the auxiliary lifting workbench 22, both sides of the auxiliary balance crane 21 are located on both sides along the conveying direction of the H-shaped steel plate, the first positioner system 24 is located on the side of the stiffener assembly station 2 away from the loading station 1, and the stiffener workpieces are manually conveyed to the stiffener assembly station 2 by forklift. Through measurement by the laser marking system 23, the position of the H-shaped steel is obtained. The workstation control system 6 calculates the position where the stiffener needs to be marked based on the stiffener position parameters and the position information of the H-shaped steel, and after feeding it back to the laser marking system 23, automatically marks the position of the stiffener that needs to be assembled and spot-welded. The operator hoists the target stiffener to the marked working position through the auxiliary balance crane 21, and completes the stiffener assembly work through manual spot welding.

[0021] The first positioner system 24 includes two positioners 241 and a positioner track 242, and conveys the H-shaped steel to the docking place of the transfer system 5 by moving the positioner 241 on the positioner track 242.

[0022] The transfer system 5 is a fork-type RGV 51 transfer system, which consists of two fork-type RGVs 51 and an RGV track 52. The RGV track 52 is located on one side of the stiffener assembly station 2, the robot welding station 3, and the blanking station 4. The transfer system 5 mainly conducts transfer work among these three stations. The fork-type RGV 51 is connected to the RGV track 52. The positioner 241 raises the H-shaped steel to a specified position. After the fork of the fork-type RGV 51 extends, the positioner 241 descends and places the H-shaped steel on the fork of the fork-type RGV 51. After receiving the H-shaped steel, the fork-type RGV 51 retracts the fork and transfers the H-shaped steel into the robot welding station 3.

[0023] The robot welding station 3 is provided with a welding robot 31, a robot track 32, and a second positioner system 33. The robot track 32 is located on one side of the track where the robot welding station 3 is located. The welding robot 31 is connected to the robot track 32, and the control system 6 is located on one side of the robot track 32. The second positioner system 33 and the first positioner system 24 here are two sets of equipment systems of the same equipment, and are named and distinguished here for the purpose of differentiating functions. After the positioner 241 in the robot welding station 3 receives the H-shaped steel from the fork-type RGV 51, it automatically runs to the specified position according to the parameters of the workpiece in the control system 6. After the workpiece arrives. The robot welding system automatically conducts weld seam searching and welding operations according to the welding parameters and procedures.

[0024] After welding is completed, the forklift-type RGV51 transports the H-shaped steel and conveys the H-shaped steel to the buffer rack 41 in the blanking station 4. The blanking station 4 is provided with a buffer rack 41, a translation trolley 42 and a turning machine 43. The translation trolley 42 and the turning machine 43 are both located on one side of the buffer rack 41.

[0025] The automatic welding method includes the following steps:

[0026] S1. Preparation work: Input the model parameters, stiffener size parameters, stiffener position parameters, weld parameters, welding step parameters, and welding program of the overall workpiece into the workstation control system 6 as the construction parameters of the workstation.

[0027] S2. Workpiece loading: The workpiece loading is divided into H-shaped steel workpieces and stiffener workpieces. The H-shaped steel workpieces are placed on the chain conveyor 11 by means of hoisting by a crane and manual assistance. 3 workpieces can be cached each time. The stiffener workpieces are transported to the designated position of the stiffener assembly station 2 by a forklift and manually. The chain conveyor 11 conveys the H-shaped steel along its width direction to the roller conveyor 12. Subsequently, the chain conveyor 11 descends so that the H-shaped steel falls onto the roller conveyor 12.

[0028] S3. Measuring and marking lines: The roller conveyor 12 conveys the H-shaped steel along its length direction to the stiffener assembly station 2. Through measurement by the laser marking system 23, the position of the H-shaped steel is obtained. The workstation control system 6 calculates the position where the stiffener needs to be marked based on the stiffener position parameters and the position information of the H-shaped steel. After feeding back to the laser marking system 23, the position of the stiffener that needs to be assembled and spot-welded is automatically marked.

[0029] S4. Auxiliary assembly: After the laser marking system 23 marks the position of the stiffener, the operator hoists the target stiffener to the marked working position through the auxiliary balance crane 21, and completes the stiffener assembly work through manual spot welding.

[0030] Repeat steps S3 and S4 until all the stiffeners are spot-welded and assembled.

[0031] S5. Workpiece transfer: After the stiffener assembly is completed, the H-shaped steel is conveyed to the docking place of the transfer system 5 through the positioner system 24. The positioner 241 raises the H-shaped steel to the designated position. After the forklift of the forklift-type RGV51 extends, the positioner 241 descends and places the H-shaped steel on the forklift of the forklift-type RGV51. After receiving the H-shaped steel, the forklift-type RGV51 retracts the forklift and transports the H-shaped steel to the robot welding station 3.

[0032] S6. Full-automatic welding: After the turntable 241 of the second turntable system 33 in the robot welding station 3 receives the H-shaped steel from the forklift-type RGV51, it automatically runs to the designated position according to the parameters of the workpiece in the control system 6. After the workpiece arrives at the position, the robot welding system automatically searches for the weld seam and performs the welding operation according to the welding parameters and procedures.

[0033] S7. Workpiece transfer: After the automatic welding of the H-shaped steel plate is completed, the forklift-type RGV51 transfers the H-shaped steel and conveys it to the buffer rack 41 in the blanking station 4.

[0034] S8. Workpiece grinding: After the workpiece is conveyed to the blanking station 4, the translation trolley 42 conveys the workpiece from the buffer rack 41 to the turning machine 43, and visual inspection and grinding are carried out manually. After the grinding of the first side is completed, it is turned over by the turning machine 43, and then the grinding of the second side is carried out.

[0035] S9. Workpiece blanking: After the manual grinding is completed, the workpiece is transported to the blanking opening by the translation trolley 42.

[0036] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. An automatic H-shaped steel plate welding workstation, characterized in that: A loading station (1), a rib plate assembly station (2), a robot welding station (3), a material unloading station (4), a transfer system (5) and a control system (6) are sequentially arranged along the direction of the production process sequence, and each of the above stations is provided with a corresponding fixed structure. The transfer system (5) is placed on one side and is used to connect the rib plate assembly station (2), the robot welding station (3) and the material unloading station (4). The control system (6) is electrically connected to the equipment in each station.

2. The H-shaped steel plate automatic welding workstation according to claim 1 is characterized in that: The loading station (1) is provided with a chain conveyor (11) and a roller conveyor (12), one end of the roller conveyor (12) is placed on one side of the rib plate assembly station (2), the chain conveyor (11) and the roller conveyor (12) are arranged alternately, and the conveying direction between the two is perpendicular.

3. The H-shaped steel plate automatic welding workstation according to claim 1 is characterized in that: The rib plate assembly station (2) comprises a laser marking system (23), a first positioner system (24), an auxiliary balancing crane (21) and an auxiliary lifting workbench (22); the auxiliary lifting workbench (22) is located in the conveying direction of the H-shaped steel plate, and the laser marking system (23) is located above the auxiliary lifting workbench (22), and the auxiliary balancing crane (21) is located on both sides along the conveying direction of the H-shaped steel plate; the first positioner system (24) is located on the side of the rib plate assembly station (2) away from the loading station (1); the first positioner system (24) comprises two positioners (241) and a positioner track (242); the positioner (241) runs to a certain position on the positioner track (242) and can be docked with the transfer system (5).

4. The H-shaped steel plate automatic welding workstation according to claim 1 is characterized in that: The transfer system (5) is a fork-type RGV transfer system, which is composed of two fork-type RGVs (51) and an RGV track (52). The RGV track (52) is located on one side of the rib assembly station (2), the robot welding station (3), and the unloading station (4). The fork-type RGV (51) is connected to the RGV track (52).

5. The H-shaped steel plate automatic welding workstation according to claim 1 is characterized in that: The robot welding station (3) is provided with a welding robot (31), a robot track (32) and a second positioner system (33); the robot track (32) is located on one side of the track where the robot welding station (3) is located; the welding robot (31) is connected to the robot track (32); and the control system (6) is located on one side of the robot track (32).

6. The H-shaped steel plate automatic welding workstation according to claim 1 is characterized in that: The unloading station (4) is provided with a buffer rack (41), a translation trolley (42) and a turning machine (43), and the translation trolley (42) and the turning machine (43) are both located on one side of the buffer rack (41).

Images