Based on years of system integration experience, Hehua has developed automated welding workstations and fully automatic welding production lines, which can quickly provide customers with customized solutions, precise research and development, and fast delivery. Hehua combines its strong design and development capabilities to achieve 1-to-1 customized solutions based on the characteristics of customer workpiece products, fully meeting customers’ all-round requirements for efficiency, quality, delivery time, etc.
Advantages of welding automation: customized intelligent welding flexible production line, according to customer specific requirements, realizes automated assembly, handling, spot welding, preheating, welding, post-heating and other production procedures, adopts intelligent flexible welding production line to solve customers’ multi-solution needs, automatically identifies the different shapes and sizes of workpieces, automatically identifies welds for welding, improves welding stability, reduces workers’ labor intensity, improves workers’ working environment, and changes traditional working methods. The production line has reasonably arranged the product process flow, based on meeting the production rhythm, fully considering the supply and demand management between each process, and strives to achieve the performance ratio of the production line. At the same time, the economy, safety, good operability, welding reliability and high flexibility of the production line are the design criteria.
Engineering machinery welding application
Application system: two-axis displacement welding system
Product introduction: The two-axis displacement workstation is lightweight, small, fast, and has a short operation time. It can be used as a rotary workbench controlled by a robot with an additional axis. It can also carry heavy objects such as furniture for rotation operations, which can realize mixed production of multiple types of products and complete complex workpiece processing needs.
Overall functional description
The main beam robot welding production line mainly produces main beams with a bridge crane tonnage of 3~60t and a span of 12.5~34.5m. The maximum overall size of the production line does not exceed 13m (width) × 270m (length)
Including 9 stations:
1. Upper plate and rib plate welding station
2. Web plate and angle steel welding station
3. π-shaped beam assembly station
4. π-shaped beam inner seam welding station 1
5. π-shaped beam inner seam welding station 2
6. π-shaped beam and lower cover plate assembly station
7. Beam box outer seam welding station 1
8. Beam box outer seam welding station 2
9. Station logistics system and production line information management system
The upper cover plate and rib plate material frame are hoisted from the material area to the upper cover plate and rib plate welding station, the web plate and angle steel material frame are hoisted from the material area to the web plate and angle steel assembly station, and the lower cover plate is hoisted from the material area to the π-shaped beam and lower cover plate assembly station. There is no workshop crane involved in the flow between the remaining stations and stations. The overall production line organizes production in the form of single-piece flow, and the cycle of each station is no more than 1 hour (based on the QD20t22.5m main beam for measurement and acceptance).
Highlights of production line design
1. The overall layout is beautiful and generous, adopting a straight-line layout, with maintenance passages set up between workstations. The workstations are concentrated on one side of the line, and a visiting passage is set up on the other side.
2. The human-machine integration is considered in the manual participation parts of the whole line.
3. The beam box assembly station is equipped with a pre-arch device, an anti-wave deformation device, and a rib plate straightening device to ensure the assembly success rate and welding qualification rate.
4. The robot of the inner seam welding station is coupled with a linkage external axis, so that the robot can reach no dead point.
5. The stations are fully automatic, without manual participation, and the degree of automation is high.
6. It has a fast parameterized programming system, which can quickly switch products.
7. It has a production information management system that can process and store data, and has an interface for docking with MES to prepare for customers to use MES later.
8. The whole line logistics uses intelligent RGV mother-and-child vehicles and roller lines for transportation, which is efficient and simple to control.
9. The angle steel conveying system adopts a double-layer speed chain to realize the infinite cycle operation of the angle steel tooling plate, reduce the number of manual loading, save manpower, and have a high degree of automation.
10. All loading positions of the production line are concentrated at the welding position of the upper cover plate and the rib plate, which is convenient for manual centralized operation and improves the overall efficiency of the production line.
