Operation control method, operating device, and circuit-board working apparatus

An operating device comprising:

• an operating member operable to have a predetermined path of operation;
• a drive device including a drive source and operable to drive the operating member;
• and
• a control device configured to control the drive source for operating the operating member from a first position to a second position, such that an operating speed of the operating member is initially increased from zero while an acceleration value of the operating member is increased from zero and then decreased to zero, and is subsequently decreased while the acceleration value is decrease from zero and then increased to zero,
• wherein the control device includes an asymmetric control portion configured to control the drive source for controlling a derivative of the acceleration value of the operating member such that the derivative during an acceleration increasing time during which the acceleration value is increased and the derivative during an acceleration decreasing time during which the acceleration value is decreased are asymmetric with respect to each other.

A circuit-board working apparatus comprising:

• a board holding device configured to hold a circuit board;
• a working head configured to perform a working operation on the circuit board held by the board holding device;
• and
• a moving device configured to move the working head and the circuit board held by the board holding device, relative to each other,
• and wherein the moving device includes:
• a movable member which holds one of the working head and the board holding device and which is movable to move said one of the working head and the board holding device;
• a drive device including a drive source and operable to drive the movable member;
• and
• a control device configured to control the drive source for moving the movable member from a first position to a second position, such that an operating speed of the movable member is initially increased from zero while an acceleration value of the movable member is increased from zero and then decreased to zero, and is subsequently decreased while the acceleration value is decrease from zero and then increased to zero,
• wherein the control device includes an asymmetric control portion configured to control the drive source for controlling a derivative of the acceleration value of the movable member such that the derivative during an acceleration increasing time during which the acceleration value is increased and the derivative during an acceleration decreasing time during which the acceleration value is decreased are asymmetric with respect to each other.