Process innovation of stamping parts for chassis and stamping parts, as well as

< 1> Innovation approach for stamping process of automotive chassis: 1. Optimizing the combination of processes. Based on the completion of a stamping part, there are often multiple processes in the process, so multiple processes are combined or a single process is combined as much as possible. When the stamping part size is too small, composite molds or continuous molds are selected for production. 2. Design Measures for Manufacturing Molds for Automotive Stamping Parts (1) Determination of Mold Structure Form and Type for Hardware Stamping Parts; After the establishment of the process plan, the single die, compound die and continuous die can be selected by simple operation, which is mainly reflected in the unity of stamping for different dies in multiple processes. The positioning surface should be based on no deformation or movement, and flange positioning should be selected for different shapes of parts. (2) As a key link in car body manufacturing, the manufacturing process quality of automotive stamping parts is directly related to the actual profits of enterprises through modular body technology. Therefore, improving the body design and process design to achieve efficiency and cost reduction is the current core development trend. The modular technology of the vehicle body has improved the adaptability of the production line, and the application of platform based and modular methods has been enhanced. The stamping process design in stamping dies is a typical innovative design process. Especially the introduction of KBE technology will be a way for innovative design of stamping dies. In the stage of workpiece design, it is necessary to analyze the processing characteristics of the workpiece, formulate the mold type, basic process parameters, and continuously develop the process plan. In the stage of using stamping dies, the first step is to carry out product stamping activities, and then take corresponding measures to solve problems that arise during different periods of use. In the stamping stage, apply the methods and systems of innovative design to the stamping process design. Especially in the digitalization and intelligent design of stamping dies, a combination of manual and computer methods is first used to manually complete processes such as product drawing development, process design and strip layout, and concave die layout. Secondly, according to the stamping requirements of the parts, the stroke of the slider, the speed curve of the slider, the holding time of the bottom dead center, the nominal pressure, etc. can be programmed arbitrarily, making the mold processing technology have the characteristics of high service life. ≪ Two> The stamping equipment and mold tooling management of GAC FCA stamping workshop implements WCM-PM management for end pickers and mold management, including equipment ledger, fault analysis, spare parts management, monthly inspection and maintenance plan based on monthly production plan, and end pickers and molds. Regular maintenance is implemented for tooling molds, and a mandatory pre repair system is implemented. Maintenance is carried out according to the number of punches of the mold, and a maintenance standard frequency is established. Establish a quality maintenance matrix to display the relationship between quality key points and mold part parameters. Control the mold parameters, process parameters, and equipment parameters used in production for metal stamping parts; Quality. The mold parameters during the production process include blade clearance, mold nitrogen cylinder pressure, billet limit size, etc. These parameters need to be clearly defined in the mold maintenance operation manual; The process parameters are generally determined by the mold itself, mainly including the mold installation height, closure height, hydraulic pad stroke, hydraulic pad pressure, balancer pressure, and top rod specifications. These information need to be clearly stated in the "Mold Installation Card". If there are changes to the relevant parameters, they need to be confirmed by the quality personnel. During the mold debugging process, the operator sets them according to the requirements of the component processing technology. During the process, the stamping workshop quality inspector needs to check the compliance of the parameters before each batch of production and keep records. The equipment parameters mainly include worktable parallelism, worktable perpendicularity, slider parallelism, slider perpendicularity, hydraulic pad tonnage accuracy, balance air pressure accuracy, etc. If these parameters deviate, it will seriously affect the quality of stamped parts. These parameters need to be measured and monitored regularly by equipment technicians, and for stamping workshops, they are generally checked once every quarter.