Multi-press online synchronous operation system and its operation control method

Abstract

The invention discloses a multi-punch online synchronous operation system and an operation control method of the multi-punch online synchronous operation system. The system comprises more than two press machine tools and machine tool operation control modules. Each machine tool operation control module comprises a sliding block displacement encoder, a frequency converter and an operation manager. The output ends of the frequency converters are connected with an electromotor of one press machine tool respectively; the sliding block displacement encoders are connected with a crankshaft of one press machine tool for detecting angle turning signals of the crankshaft of the machine tool; the sliding block displacement encoders transmit the detected angle turning signals to the operation managers; the operation managers send corresponding speed compensation instructions to the corresponding frequency converters according to the deviation between current angle turning signals and sliding block objective position crankshaft turning angles, so that the operation speed of sliding blocks can be changed by changing the rotating speed of the crankshafts, and the sliding blocks of all the press machine tools can reach designated position at designated time respectively. By the adoption of the multi-punch online synchronous operation system and the operation control method of the multi-punch online synchronous operation system, the defects of multi-machine-tool production line layout structure and control accuracy can be overcome, and the multiple machine tools can be accurately controlled to work in a synchronous or coordinated mode.

Description

technical field [0001] The invention relates to the technical field of press operation control, in particular to an online synchronous operation system for multiple presses and an operation control method for the online automatic production of multiple presses. Background technique [0002] For multi-machine connection, multi-machine multi-station connection and multi-machine progressive die connection stamping process, multiple machine tools need to be controlled synchronously or cooperatively to work, and high control accuracy is required to ensure the accuracy of in-line stamping. Therefore, finding a more suitable synchronous control scheme for multiple machine tools is an urgent problem to be solved. [0003] In the prior art, for high-strength plate processing, multi-station processing or progressive die processing, most of them use single-machine large-tonnage punching machines for processing, but the disadvantage of this is that they are more dependent on large-scale...

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Problems solved by technology

[0003] In the prior art, for high-strength plate processing, multi-station processing or progressive die processing, most of them use single-machine large-tonnage punching machines for processing, but the disadvantage of this is that they are more dependent on large-scale large-tonnage punching machines , the input cost of its production line is relatively large, and the production cycle is also long; pits are required, and the flexibility and degree of freedom of the completed automated production line are relatively low.

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