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Electric actuator and method for controlling the same

An electric actuator and electric drive technology, applied in the direction of non-electric variable control, automatic control device, program control in sequence/logic controller, etc., can solve the problem of increased cost of electric actuator 1, and achieve reliable setting Effect

Inactive Publication Date: 2006-11-08
SMC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the cost of the electric actuator 1 increases

Method used

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  • Electric actuator and method for controlling the same
  • Electric actuator and method for controlling the same
  • Electric actuator and method for controlling the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] 1 and 2 show an electric actuator 20 according to a first embodiment of the invention.

[0039]As shown in FIGS. 1 and 2, the electric actuator 20 includes a sliding member 22 as a motion mechanism for moving a workpiece or feeding a workpiece or the like, a motor 26 as an electric drive source including a drive shaft 24, and a drive shaft 24 as an electric drive source. The power transmission mechanism is used to transmit driving power from the motor 26 to the timing belt 30 of the sliding member 22 through the gear 28a engaged on the driving shaft 24, and includes a stopper bolt 32 for adjusting relative stop positions such as the starting point and the starting point of the sliding member 22. End stops 34a, 34b, and a console 36 for controlling the electric actuator 20 including the slide member 22.

[0040] The motor 20 includes, for example, a stepping motor, which includes an encoder 38 as a position information detector for detecting position information of the s...

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PUM

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Abstract

The stop positions of the start and end points of the slide member (22) are set by adjusting the positions of the stoppers (34a) and / or the stoppers (34b). In response to the manipulation of the learning manipulation element (84), the distance traveled by the sliding part is learned according to an instruction from the console (36), and at least one of the speed and the acceleration is passed through the speed regulator (80) or the acceleration regulator (82) is set. The console (36) outputs a drive signal to the motor (26) according to at least one of the set speed of the sliding component (22) moving at a constant speed and the setting acceleration of the accelerating motion, and the learned distance traveled by the sliding component . In order to move the sliding part (22) to the starting point or the ending point, the console (36) controls the sliding part (22) to move at a speed less than the constant speed movement, and positions the sliding part (22) at the starting point or the ending point.

Description

technical field [0001] The invention relates to an electric actuator for transmitting drive power from an electric drive source via a drive power transmission mechanism to a movement mechanism and a method for controlling the electric actuator. Background technique [0002] Conventionally, electric actuators have been widely used as a mechanism for conveying workpieces and the like. [0003] As shown in FIG. 15, a conventional electric actuator 1 has an electric motor 2 as an electric driving source, and power is supplied to the electric motor to drive a power transmission mechanism 3 (such as a ball screw, a timing belt, etc.) along a guide member. (such as a linear guide, a guide block, etc.) moves the slide member 4 including the feed table or the like, whereby the work or the like placed on the slide member 4 is conveyed to a desired position. [0004] In order to move the sliding part 4, that is, in order to control the movement of the sliding part 4, the controller 5 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D3/00G05B19/00G05B19/05B23Q15/00G05B19/416G05D3/12
CPCG05B19/416G05B2219/43097
Inventor 遠藤勝久藤田隆飯田和啓
Owner SMC CORP