Electronic cam control device and electronic cam curve generation method thereof

Abstract

The invention discloses an electronic cam control device and an electronic cam curve generation method thereof. The device comprises an information reading unit used for reading and analyzing a driven shaft position setting file; an electronic cam curve generation unit used for generating an electronic cam curve according to limiting conditions set by a user; an electronic cam curve memory unit used for storing the generated electronic cam curve; a position command generation unit used for referring to position feedback of a driving shaft and converting a stroke plan of the electronic cam curve into a position command; and a command output unit used for outputting the position command to a driven shaft driving unit which acts according to the received position command. In a stoke planning process, a solver meeting conditions is selected according to the limiting conditions and a solving result of the last time until a solution meeting the limiting conditions is found; and in the solving process, the speed, acceleration, accelerated acceleration and the like in the process are considered, and a machine bench protection function is achieved.

Description

technical field [0001] The invention relates to an electronic cam control device and an electronic cam curve generation method, in particular to an electronic cam control device and an electronic cam curve generation method for generating an electronic cam curve for stroke planning. Background technique [0002] The electronic cam control device can set an electronic cam curve, and then control the servo motor through the servo system, the purpose is to make the position of the driven shaft correspond to the position of the driving shaft to satisfy the corresponding relationship set by the electronic cam curve. Because the electronic cam curve is more flexible and convenient to use, it has gradually been used to replace the traditional mechanical cam. It can be used by setting a new electronic cam curve through software. When the electronic cam curve is generated, a number of specific points will be specified first, these specific points represent the corresponding relation...

AI Technical Summary

Problems solved by technology

However, this method can only limit the speed and acceleration of the initial point and the end point, and does not limit the speed and acceleration in the process. There may be a large speed and acceleration in the process, which may cause damage to the machine; 4) the existing electronic cam curve The generation method algorithm requires a lot of parameters for each point, such as the point position, speed, acceleration and deceleration interval time, and acceleration interval time, which is not convenient to use

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