A plc control method for data acquisition and error prevention in the process of cylinder head transmission

Abstract

The invention relates to the machining field and particularly relates to a data acquisition and error prevention PLC control method which is utilized when cylinder cover blank members are sequentially conveyed on a conveying line. Before an engine cylinder cover enters a machine tool for processing, the blank members are conveyed by a conveying device from a feeding area to the machine tool, the cylinder covers on the conveying line sequentially realize casting code scanning, marking surface processing, laser two-dimensional code printing, two-dimensional code confirmation, combustion chamber height measurement and dimension over-error waste discharge operations; each function operation is distributed according to certain rules, firstly, casting code scanning operation and marking surface processing operation, secondly, laser two-dimensional code printing operation, combustion chamber height measurement operation and dimension over-error waste discharge operation which are continuously arranged, and products must sequentially have the multiple operations. The method is advantaged in that data acquisition and transmission accuracy is high, production is convenient, and relatively good use and promotion values are realized.

Description

technical field [0001] The invention relates to the field of machining, in particular to a control method for data acquisition and error prevention when cylinder head blanks are sequentially transmitted on a transmission line. Background technique [0002] The volume of the combustion chamber of the engine cylinder head is an important dimension that affects the performance and emission of the engine, and the height of the combustion chamber is the main dimension that affects the volume. At this stage, the control of the height of the combustion chamber mostly adopts offline measurement. The cylinder head blanks are transferred to the machine tools of each process by the roller conveyor line. Before processing, use a manual testing instrument or a single-machine testing instrument to measure the height of the combustion chamber and record the data. The machine tool records the data according to the recorded data. For processing, the process is cumbersome, and a special perso...

AI Technical Summary

Problems solved by technology

At present, the control of the combustion chamber height mostly adopts off-line measurement. The cylinder head blank is transmitted to each process machine tool by the roller conveying line. For processing, the process is cumbersome, and a special person is required to be responsible for measuring and recording

[0003] At present, there are no mature products for batch control algorithms such as transmission, testing, error prevention, and rejecting in the continuous production process of cylinder heads. They mainly focus on improving the test accuracy of cylinder heads, data acquisition, and stand-alone testing of combustion chamber heights. For example: CN202383506U A control unit for error-proofing based on the input of unqualified numbers in the manufacturing industry, the main content of its claim is a statistical method for processed products; CN203102254U factory code serial number error-proofing system, the main content of its claim is to repeatedly call the database for data comparison, The design to avoid errors is not suitable for the production of blank parts; CN101458107A is an engine cylinder head combustion chamber volume measurement device and its measurement method, which belongs to an online testing device; CN105127492A is an online compensation processing method for an in-line engine cylinder head combustion chamber Improvement of a test method; CN102749881B An error-proof monitoring system and method for an automobile engine valve group assembly process, which belongs to online measurement, but only allows correct products to pass through, which does not meet the current production status of the enterprise

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