Introduction

The rapid development of new energy vehicles in China is injecting more and more force into the transformation of the world's automotive industry. China's supply chain is very complete and has the world's largest component matching system. This enables Chinese car manufacturers to better control the procurement and supply of raw materials and components, thereby reducing costs and improving efficiency, with the supply of interior and exterior trim systems being an essential link.

Car door production process

The general structure of a car door is: door inner panel, door outer panel, and door reinforcement panel.

Door outer panel: The door outer panel is a sheet metal part that is processed through an automotive molding mold. The next step is to split the stamped door outer panel into two parts and remove the edges and corners.

Door inner panel: The sheet metal parts are welded to the car window. The pre stamped sheet metal parts are positioned with the window frame on the welding fixture, and after positioning is completed, robot welding is carried out.

Welding of anti-collision beam and reinforcing ribs: First, fix the anti-collision beam and reinforcing ribs, then fix the welded door inner panel together and weld it. After welding, the car inner panel is completed.

Adhesive bonding of inner and outer panels: Apply adhesive to the inner edges of the car's outer panel, then apply adhesive to the middle of the car door. After the adhesive is applied, the robotic arm connects the inner and outer panels together, and finally compresses them tightly. Once the compression is complete, the sheet metal parts of the car door are produced.

Mingda Case

This project is mainly used in the production process of car doors. The controller is Siemens 1511CPU, which communicates with MR30 through Profinet bus, and the signal is connected through IO module.

Quantity input signals are used for button, workpiece positioning detection, press positioning detection, fixture workpiece positioning detection, compression positioning detection, light curtain signal detection, etc; Digital output is used to control the action of cylinder solenoid valves, transmission control, starting and protection of welding robots, etc;

Customer revenue

In the context of shrinking overall demand and fierce competition, how to reduce costs and increase efficiency while ensuring stable production is the same issue that everyone is facing. The Mingda MR30 series, with its excellent performance, ensures stable production for customers while reducing costs by up to 50%; The fault diagnosis function greatly facilitates the handling of faults in the later stage; The hot swappable function minimizes the impact on production as much as possible, while the tool free PUSH-IN terminal design reduces maintenance time by 50%. Customers' choice and recognition of the product is the best affirmation of Mingda.