Remember these experiences to greatly improve the efficiency of stamping die assembly

At present, my country's mold industry has broad development prospects, and senior mold fitters (senior blue-collar workers) are in short supply. Therefore, it is urgent to strengthen the training of mold manufacturing fitters to lay the foundation for the development of the industry. The application of stamping dies is very common, and the manufacturing of stamping dies is generally carried out in professional mold factories or mold workshops. Although the die design is ever-changing, and the equipment, processing habits, and operating levels of each manufacturer are not the same, the process of die manufacturing is roughly similar. The following is an analysis of how to improve the efficiency of stamping die assembly: (1) No or less special tools are used for die manufacturing. Generally speaking, die is a special process equipment, and its manufacturing belongs to single-piece production. In order to shorten the mold manufacturing cycle and reduce the cost of mold manufacturing, special tools are not used or less used in die manufacturing, and the universal processing method is used as much as possible. This requires the operator to be proficient in various processing methods, machine tools and accessories, measuring instruments and tools. Therefore, mold manufacturing has higher requirements for operators. (2) Die manufacturing and processing procedures should not be too dispersed. Die manufacturing belongs to single-piece production. Single-piece production does not disperse the processing procedures like mass production (such as an assembly line), but relatively concentrates the processing procedures. For example, the planer can plan the six sides of the blank on the planer and straighten it; the fitter can complete the line drawing and all the drilling, reaming, threading, preparation and other tasks, which can reduce the turnover between procedures and simplify management. Assigning the tasks of the same type of work to one person relatively fixedly, or adopting a management method that fitters are responsible for, is conducive to speeding up the progress of mold manufacturing and improving mold quality. This is a relatively common mold manufacturing method. (3) It is not advisable to use interchangeable production or group assembly methods to manufacture dies. There are a large number of preparations, manual trimming, etc. in die manufacturing. The single-piece production method does not allow interchangeable production or group assembly methods, but uses Preparation. The basic size of some mold parts is allowed to be slightly larger or smaller, but the holes or shafts that have a matching relationship (such as the guide pin and guide sleeve of the die, punching punch and die) must ensure the specified matching tolerance to ensure the allowable gap Or interference, which not only guarantees the quality of the mold, but also avoids unnecessary parts scrapping. (4) Die manufacturing should not ignore standardization and production collaboration. In order to shorten the die manufacturing cycle as much as possible, standardization of mold design, mold manufacturing process and drawing form should be carried out. In terms of design standards, it is mainly to adopt standard mold structures and select standard mold parts as much as possible to improve the quality of design work and shorten the design cycle. For example, standard mold bases are used as much as possible, and molds are mass-produced by specialized manufacturers according to mold base standards. supply. In terms of manufacturing process standards, it is mainly to standardize the processing process routes and process methods of various mold parts, and even prefabricated process specifications with process dumb drawings. When using, just fill in the main dimensional tolerance values u200bu200band quickly send it to production. On-site processing, such as the processing of standard punches and female mold inserts. The standardization of the drawing form mainly adopts the regulations of the internal mold drawing form of the company. For example, only the assembly positions of key work parts are drawn in the general drawing of the mold, and other parts are only indicated by symbols, and the main work can be specified in the general drawing. Part size (or even instead of mold parts drawing), which is more common in automotive die drawings. With the standardization of die manufacturing and production collaboration, for example, a mold company that is a general contractor of a certain model does not need to manufacture all the molds. It can diverge part of the mold for outsourcing processing, and it does not need to process all the parts for a mold. For example, only key parts such as punches or dies are processed. Others such as mold bases, guide posts, guide sleeves, templates, forging blocks, punches, springs, etc. can be processed or purchased outside. This speeds up the pace of mold manufacturing, reduces mold production costs, and improves mold manufacturing quality at the same time. Previous: Several aspects that cannot be ignored when stamping out high-quality heads