Automatic punch and eyelet punch mold manufacturing technology

With the rapid development of the domestic economy, the automobile market is facing an unprecedented development opportunities and challenges, among OEMs increasingly competitive, more and more frequent replacement models, but decided to cover the overall appearance of the quality of each production conditions more stringent requirements, therefore, mold processing, manufacturing, assembly, testing and other relevant procedures must meticulous, doing fine, do the whole, the past, some manufacturing, assembly methods, technologies, processes have been far from the mold production cycle as short as possible to meet the requirements of How to improve production efficiency, ensure product quality, continuous improvement According to recent years a number of measures and achieved good results, to introduce some new technology, new methods automotive mold manufacturing, assembly. 1, drawing die assembled vehicle body cover has a larger profile, the material is thin, undulating slope-surface complex, high dimensional accuracy and surface quality requirements in the stretch molding process prone to crack, wrinkle. Drawing die manufacturing, assembly generally as the first procedure, its polishing effect profile, EUREKA high and low quality directly determines its subsequent amendments final punch, turned the whole, even lamination manufacturing quality of the mold, therefore, must improve its assembly process sex, specific mainly the following aspects. (1) Before manufacture, assembly, first mold structure, working principle, the product shape, vehicle matching the shape of the relationship and related processes have a clear understanding, knowledge, so that during assembly of some of molding fillet, ridgeline, impact marks, face angle and other elements of the draft to have a clear understanding of this assembly, commissioning process, clear thinking, prioritize, both to improve the work efficiency, and ensure quality. (2) to ensure that the secondary processing in place, the drawing die during assembly, repair disposable face as much as possible to avoid the use of the wheel, electric grinding tool profile, ridgeline fillets polished, in order to avoid affect the quality of the final product shape. Instead, first use and then use sandpaper polished stone, each should be in accordance with the fine after the first rough manner, polishing does not use the see-saw manner, but should gradually promote the same direction. (3) the binder various parts of the feed resistance is not as rough during stretching may traverse through the punch top surface quality, a serious crack and cause wrinkling. So that the binder smooth transition, the uniformity of the feed resistance, and stretching the rough near the center of the contact area at the beginning of the punch stretch, stretch good shape. For each part of the binder feed resistance uniformity, except through rational design of the binder shape and stretch tendons and other measures, in the processing, but also in close connection with the clearance plan design assembly, drawing along the molding material surface drawbead putting 50, binder decreased by 0.15; drawbead height by a few die drawbead groove depth deeper 1MM. 2, repair die assembly called trimming is to repair the stretch of waste outside edges cut off part of the ideal trimming direction, the direction of movement is the repair and trimming knife edge perpendicular to the surface. Trimming form can generally be divided into vertical trimming, trimming the horizontal and oblique trimming are three categories for repair punching mold, convex, concave blade gap of uniform size, whether local presence cut legislation and other factors will determine the quality of trimming burr size. In addition, to fully consider all waste slide blocks smooth concrete ways to improve the following main aspects. (1) a process in place effective implementation process, a process in place to ensure its content main profile, profile, holes in place a process to avoid secondary on the machine, resulting in unnecessary waste costs, trimming convex and concave edge profile The process belongs to a process in place, mainly by the fitter before we take the "bite edge" approach to repair research at spotting press bed, low efficiency, uneven gaps, poor quality, after a long period of research, tracking, and finally the use of fight After hardening the block, and then on CNC machine tools, with a full program of cemented carbide secondary processing in place, it proved to reduce the unnecessary manual labor, improve manufacturing efficiency and quality, shorten the mold manufacturing cycle. (2) In order to ensure the accuracy of holes to ensure that all bits punch holes in the product design requirements within the tolerance range, in the daily work, in close connection with practical experience through repeated machining track, explore, collect data, Finally, the centering punch, centering pin hole rely CNC play, mounted directly on a standard assembly punch, do not need any adjustment, change the past, punching punch assembly process, effectively meet the accuracy requirements of the relevant parameters of the hole Related Searches: corn machine | riveting machines | Riveting | Automatic corn machine | semi-tiger bones deduction | automatic riveting machine 13412801161 Liu http://www.xiongjiejixie.com/