Electronic cam control device and electronic cam curve generating method

An electronic cam control device comprising:

• an input unit configured to receive an input of a plurality of designated coordinates that define a relation between a main shaft position and a driven shaft position;
• an electronic-cam-curve generating unit configured to generate an electronic cam curve to pass the plurality of designated coordinates, the electronic cam curve representing, as a curve, a relation between the main shaft position and the driven shaft position;
• and
• an output unit configured to output the driven shaft position corresponding to the main shaft position as a driven shaft position command to an external device, the driven shaft position command confirming to the electronic cam curve, wherein
• the electronic-cam-curve generating unit generates the electronic cam curve to include a section where a waveform of cam velocity obtained by differentiating the electronic cam curve with respect to the main shaft position changes to fixed cam velocity in each of regions, which are regions among the designated coordinates, and include a monotonous acceleration or deceleration section that connects sections where the waveform of the cam velocity changes to the fixed cam velocity by accelerating or decelerating while monotonously increasing or monotonously decreasing between adjacent regions.