Can welding robots weld plates? How to maintain and program welding robots?
Introduction: Can automatic welding robots weld medium and thick plates? As the basic process of the mechanical manufacturing industry, welding technology has attracted much attention in the development of technology. Automatic welding robot is an automatic welding equipment developed on the basis of traditional welding, which can realize the welding of any work piece. Traditional welding in the welding of medium and thick plates is easy to lead to unstable welding quality and slow welding efficiency. Automatic welding robot can weld medium and thick plate work piece.
1. Can automatic welding robot weld medium and thick plates
The automatic welding robot is mainly used for the welding of medium and thick plates in the field of engineering machinery. In practical application cases, it can improve teaching efficiency. In terms of welding quality, it can modularize welding parameters and improve the stability of welding quality. Now, a medium and thick plate welding system has emerged, which is more intelligent for the welding of medium and thick plates.
Modularization of welding parameters. In the automatic welding robot plate welding system, the welding parameters of plate specifications can be stored. In future welding work, the stored welding parameters can be called according to the type of weld.
Equipped with contact sensor. Contact sensing is used to detect whether the work piece is offset during the contact process of the work piece. At the beginning of contact, a work piece position will be determined according to the contact sensor, and another position will be detected during teaching. The difference between the two positions is the error value, and welding operation will be realized by calculating the compensation amount.
In the welding application of automatic welding robots for medium and thick plate work pieces, Qingdao Saibang summarized the role of the medium and thick plate welding system according to customer feedback. The medium and back plate welding system of automatic welding robots can improve the efficiency of enterprise production lines, improve the welding quality of medium and thick plate products, expand product performance, reduce welding consumables, and reduce the output cost of enterprises.
To sum up, the automatic welding robot can weld medium and thick plates, which can improve the deposition efficiency and achieve stable welding.
2. Maintenance of welding robot
（1） Daily inspection and maintenance
1. Whether the wire feeding mechanism, including the wire feeding force distance, is normal, whether the wire feeding conduit is damaged, and whether there is an abnormal alarm.
2. Whether the gas flow is normal.
3. Whether the welding gun safety protection system is normal. (It is forbidden to turn off the safety protection work of the welding gun)
4. Whether the water circulation system works normally.
5. Test TCP (it is recommended to prepare a test program and run it after each shift handover)
（2） Weekly inspection and maintenance
1. Scrub each axis of the robot.
2. Check the accuracy of TCP.
3. Check the residual oil level.
4. Check whether the zero position of each axis of the robot is accurate.
5. Clean the filter screen behind the water tank of the welding machine.
6. Clean the filter screen at the compressed air inlet.
7. Clean the impurities at the nozzle of the welding gun to avoid blocking the water circulation.
8. Clean the wire feed mechanism, including wire feed wheel, wire pressing wheel and wire guide tube.
9. Check the hose bundle and guide wire hose for damage and breakage. (It is recommended to remove the whole hose bundle and clean it with compressed air)
10. Check whether the safety protection system of the welding gun is normal and whether the external emergency stop button is normal.
3. Programming Skills of Welding Robot
(1) Select a reasonable welding sequence to reduce welding deformation and the length of welding torch travel path to formulate the welding sequence.
(2) The space transition of welding torch requires short, smooth and safe moving track.
(3) Optimize welding parameters. In order to obtain the best welding parameters, make working test pieces for welding test and process qualification.
(4) Reasonable positioner position, welding gun attitude and welding gun position relative to the joint shall be adopted. After the work piece is fixed on the positioner, if the welding seam is not the ideal position and angle, it is required to constantly adjust the positioner during programming, so that the welding seam can reach the horizontal position one by one according to the welding sequence. At the same time, it is necessary to constantly adjust the position of each axis of the robot, reasonably determine the position and angle of the welding gun relative to the joint and the extension length of the welding wire. After the position of the work piece is determined, the position of the welding gun relative to the joint must be observed by the programmer with both eyes, which is difficult. This requires programmers to be good at summarizing and accumulating experience.
(5) The gun cleaning procedure shall be inserted in time. After the welding procedure of a certain length is prepared, the gun cleaning procedure shall be inserted in time to prevent welding spatter from blocking the welding nozzle and conductive nozzle, ensure the cleanness of the welding gun, improve the life of the nozzle, ensure reliable arc ignition and reduce welding spatter.
(6) Generally, the programming cannot be done in one step. A good program can be formed only by constantly checking and modifying the program, adjusting the welding parameters and welding torch posture during the robot welding process.