Linear multi-motor control system

Abstract

The invention discloses a linear multi-motor control system which comprises a controller, an upper computer, a laser sensor, a plurality of stepping drivers and a through type stepping motor. The controller exchanges information with an upper computer through a field bus; the laser sensor is used for carrying out zero calibration on the initial positions of the plurality of through type stepping motors; the controller reads the data of the laser sensor through analog-to-digital conversion; the controller controls the stepping drivers, each stepping driver correspondingly drives the unique through type stepping motor to move, and multi-motor linear motion control is achieved. The invention is suitable for a time-sharing control multi-motor system, the digital port requirement of control information is reduced through sharing of control signals such as pulses and directions, and the larger the number of motors is, the larger the reduced number is; through a non-contact laser sensor, inclined installation is adopted, zero calibration of multiple motors is achieved at the same time, zero sensors are reduced, the system reliability is improved, and meanwhile the installation space is saved.

Description

technical field [0001] The invention belongs to the technical field of linear multi-motor control, and in particular relates to a multiple motion control system on the same straight line based on stepping drive. Background technique [0002] The through-axis linear stepping motor integrates the nut and the motor rotor. The screw shaft passes through the center of the motor rotor to fix the screw and prevent rotation. When the rotor rotates after the motor is powered on, the motor will move along the screw. linear motion. When using an externally driven linear stepping motor for high-speed linear motion, it is usually limited by the critical speed of the screw. Use a through-axis linear stepping motor to fix the screw and prevent rotation, and let the motor drive the slider of the linear guide rail. The operation is not limited by the critical speed of the screw rod. [0003] Through-shaft linear stepper motor, the nut is built into the structural design of the motor, which...

AI Technical Summary

Problems solved by technology

[0004] The application of multiple motion control on the same line is used in small test systems, assembly, etc., and the number of motion axes is large, resulting in many position control signals and difficult zero calibration.

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