Control method of full-life periodical processing precision of mould

Abstract

The invention discloses a control method of full-life periodical processing precision of a mould, and relates to a processing control method of the mould. The control method comprises the following steps of: S1, designing a three-dimensional CAD (Computer-Aided Design) mode of the mould; S2, manufacturing a Styrofoam mode; S3, acquiring the curved surface data of the Styrofoam mode; S4, comparing with the three-dimensional CAD mode of the mould cast piece to judge whether the size is out of tolerance; S5, acquiring the curved surface data of the cast piece; S6, comparing with the three-dimensional CAD mode of the mould to judge whether the size is out of tolerance; S7, acquiring the mechanical processing curved surface data; S8, comparing with the three-dimensional CAD mode of the mould to determine the processing position and the processing quantity of a tongman; S9, acquiring the curved surface data of the mould; S10, comparing with the three-dimensional CAD mode of the mould to provide the design experience for the mould designers; S11, acquiring the actual used curved surface data; and S12, comparing with the curved surface digifax E of the mould to determine the time for modifying the mould. The control method can improve the manufacture precision of the mould and can reduce the manufacturing time of the mould, so that the control method is especially applied to the mould by which the metal plates are directly manufactured as covers.

Description

technical field [0001] The invention relates to a processing control method of a mold, in particular to a method for controlling the processing accuracy of the entire life cycle of the mold. Background technique [0002] At present, panel molds are widely used in the field of automobile manufacturing. The traditional manufacturing methods of panel molds mainly have the following defects: (1) The Styrofoam model only monitors the key points of size, lacks comprehensiveness, and is easy to ignore local defects. Subsequent casting errors or even scrapping; (2) Castings are only inspected for appearance and do not monitor the size, which is prone to knife collision during machining, or the size is out of tolerance, and the mold is scrapped as a whole; (3) After the machining is completed, when the fitter grinds, It is relatively blind, can not guarantee the accuracy, increases the number of mold trials, and the efficiency of repeated mold installation and repair is low, which se...

AI Technical Summary

Problems solved by technology

[0002] At present, panel molds are widely used in the field of automobile manufacturing. The traditional manufacturing methods of panel molds mainly have the following defects: (1) The Styrofoam model only monitors the key points of size, lacks comprehensiveness, and is easy to ignore local defects, which can easily lead to Subsequent casting errors or even scrapping; (2) Castings are only inspected for appearance and do not monitor the size, which is prone to knife collision during machining, or the size is out of tolerance, and the mold is scrapped as a whole; (3) After the machining is completed, when the fitter grinds, It is relatively blind, cannot guarantee the accuracy, increases the number of mold trials, and the efficiency of repeated mold installation and repair is low, which seriously affects the mold delivery time; (4) After the mold trial is successful, the actual molding surface data of the mold is not retained, and there is no experience accumulation. Design and repair are not helpful; (5) During the use of the mold, the mold must be repaired after the mold fails. The cover mold is generally a single-piece product, and the mold repair means that production will be stopped, which will bring economic losses to the enterprise; (6) Repair The mold time is long, there is no reference model, and repeated mold trials are required; (7) The traditional mold manufacturing process ends after the successful mold trial. Traditional mold design uses product samples as the only basis for design, and the actual mold after successful mold trial There will always be differences between the shape and surface of the mold designed based on the sample. During the mold manufacturing process, a large number of repeated mold trials and mold repairs are always required to adjust the shape of the mold, which increases the manufacturing time of the mold.

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