Full-function type bolt screwing shaft controller

Abstract

The invention discloses a full-function type bolt screwing shaft controller, which comprises an STC controller, and a torque signal detection unit, an execution switch, a drive execution unit, an encoder input unit, a communication unit and a display unit which are connected with the STC controller, wherein the STC controller is used for carrying out input detection and output control on a signal and processing data; the torque signal detection unit is used for detecting the torque borne by a screwing shaft; the execution switch is used for sending a command signal of executing screwing to the STC controller; the drive execution unit is used for controlling a servo motor drive screwing shaft to complete the screwing process by adopting the command; the encoder input unit is used for calculating a screwing angle of the screwing shaft; the communication unit is used for realizing the data transmission between the STC controller and an upper control unit; and the display unit is used for displaying the screwing torque, the screwing angle and the screwing state of the bolt screwing shaft. The full-function type bolt screwing shaft controller realizes the requirement of real-time control for the screwing torque and the screwing angle of a bolt, and is improved in stability, reliability, accuracy and assembly quality during bolt screwing.

Description

technical field [0001] The invention relates to the field of automatic bolt tightening in the automobile manufacturing industry, in particular to a full-function bolt tightening axis controller. Background technique [0002] At present, there are many types of electric multi-axis bolt tightening machines used in the domestic automobile manufacturing industry. However, the accuracy of the tightening torque and angle of the electric multi-axis bolt tightening machines produced by many manufacturers often cannot meet the production requirements, and even the bolts are tightened and broken. , and the performance is very unstable. The main reason for the analysis is: some manufacturers use industrial control computers and various data acquisition boards to form the control core, and some use programmable logic controller (PLC) control, or their combination control. Due to the poor coordination performance and slow overall response speed of various data acquisition card applicati...

AI Technical Summary

Problems solved by technology

Due to the poor coordination performance and slow overall response speed of various data acquisition card application programs of industrial control computers or PLC programs in these control methods, it cannot meet the real-time requirements of the control system for bolt tightening torque and tightening angle. , resulting in the impact on the tightening accuracy and the damage of the bolts. It can be seen that the performance and accuracy of the electric multi-axis bolt tightening machine are mainly the real-time processing method of the bolt tightening control system and the design of the controller system structure.

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