Detailed Analysis of the Groove System Scheme Based on Sheet Metal Parts

Customer request

1.1 Use and process requirements

The side plate for the transition groove, the side plate of the base frame, the upper and lower plates of the coupling pad, and the like, the space groove cutting of the large-sized structural plate, the straight line, the curved cutting of the plane positioning or the small plate parts such as some tongue plates are exposed. Angle cutting to improve the appearance quality of the exposed chamfer of large structural parts and the quality of the groove weld.

切割 Cutting objects: mainly hot-rolled medium and heavy plates such as low carbon steel and alloy steel.

切割 Cutting gas: propane, oxygen.

切割 Cutting method: The robot groove cutting workstation adopts the single-station layout.

1.2 Technical parameters and performance requirements

☆ Equipment technical parameters

☞ Effective cutting width 1500 mm; effective cutting length 5000 mm;

☞ Effective cutting thickness 100 mm; maximum processing groove angle >60°;

火焰 Flame cutting speed 100～800 mm/min; equipment can work continuously for 24 hours;

最大 Maximum load capacity of the workbench: not less than 2.0t;

☆ Equipment working environment conditions:

☞ Working power supply: three-phase AC 380V 50HZ

☞ Ambient temperature: -10～50°C, humidity≤80%

周边 Surrounding environment: well ventilated with slight vibration

切割 Cutting gas: gas liquefied petroleum gas or natural gas + oxygen

管道 Pipe gas pressure: 0.35～0.5 Mpa; Gas maximum flow: 120～150 m3/h

管道 Pipeline oxygen pressure: 0.5Mpa; Pipe compressed air pressure: 0.5～0.6 Mpa

☞ Working power supply: Three-phase AC 380V±10% 50Hz±2%

☞ Ambient temperature: -10～50°C, humidity ≤80%, air non-corrosive gas

周边 Surrounding environment: Good ventilation, slight vibration below 0.5G.

压缩 Compressed air: >0.5Mpa

2. Workstation overview

2.1 Welding process

The side plate for the transition groove, the side plate of the base frame, the upper and lower plates of the coupling pad, and the like, the space groove cutting of the large-sized structural plate, the straight line, the curved cutting of the plane positioning or the small plate parts such as some tongue plates are exposed. Angle cutting to improve the appearance quality of the exposed chamfer of large structural parts and the quality of the groove weld.

Cutting objects: mainly hot-rolled medium and heavy plates such as low carbon steel and alloy steel.

Cutting gas: propane, oxygen.

Cutting method: The robot groove cutting workstation adopts a single-station layout.

Work loading and unloading method: manual loading and unloading;

2.2 Workstation Overview

This workstation is arranged in a single station space. Workstations mainly include grooved robots, workpiece positioners, flame cutting systems, safety measures, and system integrated control cabinets.

2.3 Workstation Operation Process

(1) Teaching assignment

1 Place the workpiece on the tooling platform and position it.

2 Turn on the device.

3 Set the operation mode button on the robot operation box to the teaching mode side.

4 Confirmation before the teaching operation. (The first work is done, after one completion, this step is not necessary later)

5 Teaching operation with the teaching operator. (First time work, once completed, no need to do this later)

a) Welding procedure

1) Remotely control the robot and make a track.

2) Set the command code.

For example, when sensing the welding start point, only the command code and the groove type are specified, and the robot automatically generates the sensing action.

3) Set the parameters in the system.

4) Confirm that the teaching program has an error and whether the program is transferred to the step. If there is an error, modify it.

5) The remote control robot moves to the retracted position (start position and end position of the program).

6 Save the program in an external memory (flash card).

(2) Regeneration operation (automatic operation)

1 From the safety bar, insert the safety bar of the safety bar.

2 Change the operation mode key of the robot operation box to the regeneration mode side.

3 Confirm that there is no one in the safety bar, and there is no interference in the robot's motion range.

4 Set the program number by the external start unit to perform regeneration.

5 As long as no abnormal stop occurs, the welding program and related operating procedures are automatically regenerated, so no operator monitoring is required.

6 When the light abnormality such as the torch abnormality stops, the status indicator lights from yellow to red to notify the worker.

7 The sequence of exception handling jobs is shown below.

1) Change the operation mode key to the teaching mode side and enter the safety bar.

2) Confirm the abnormal state and eliminate the cause of the abnormality. If the temporary stop point automatic recovery function is used, the robot can automatically start again from the abnormal stop position.

3) After proper treatment, come out from the safety bar and insert a safety plug.

4) Change the operation mode key to the regeneration mode side and restart.

8 After the regenerative operation is completed, change the operation mode key to the teaching mode side and enter the safety bar to check the groove status. When the groove condition needs to be changed, correct the database.

9 Save the program in an external memory (flash card).

10 cycles, after the completion of the workpiece clamping of the same specification, the fixed teaching program is called, the external start, the groove is started, the unloading of the groove is completed, and a cycle is completed.