A positioning method of a servo drive with one-way positioning function

A servo drive, one-way positioning technology, applied in the direction of control using feedback, can solve the problem of insufficient positioning accuracy, and achieve the effect of eliminating backlash error

Active Publication Date: 2019-10-25
深圳市合信自动化技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in the prior art, there are deficiencies in the positioning accuracy

Method used

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  • A positioning method of a servo drive with one-way positioning function
  • A positioning method of a servo drive with one-way positioning function
  • A positioning method of a servo drive with one-way positioning function

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Embodiment Construction

[0025] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] Such as figure 2 As shown, it is a schematic diagram of the main flow in an embodiment of the positioning method of the servo drive with unidirectional positioning function provided by the present invention; in this embodiment, the method mainly includes the following steps:

[0027] Step S10, when the stopper needs to be positioned, determine the one-way positioning direction, wherein each one-way positioning direction corresponds to one rotation direction of the motor, and each rotation direction of the motor corresponds to the stopper A default motion direction of ;

[0028] Step S12, selecting a one-way positioning scheme according to the relationship between the expected position of the block and its current position;

[0029] Step S14 , according to the selected one-way positioning scheme, control the rotation and number of rotations of...

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Abstract

The invention discloses a positioning method of a servo driver having a one-way positioning function. The method comprises the following steps: when a stop block needs to be positioned, determining one-way positioning directions, wherein each one-way positioning direction is corresponding to one rotation direction of a motor, and each rotation direction of the motor is corresponding to one default motion direction of the stop block; selecting a one-way positioning scheme according to relation between anticipated positioning given position of the stop block and the current position; and controlling the motor to rotate and the number of rotation turns according to the selected one-way positioning scheme, and enabling the stop block to be positioned to the given position accurately through a screw rod controlled by the motor. According to the technical scheme, positioning precision can be improved.

Description

technical field [0001] The invention relates to the field of positioning of a servo drive, in particular to a positioning method of a servo drive with a one-way positioning function. Background technique [0002] In the field of industrial control, servo drives often drive servo motors to achieve industrial control, such as figure 1 As shown, under the drive of the servo driver, the servo motor drives the lower screw to rotate, so that the stopper moves to the right; at this time, it is assumed that the stop position of the right movement is correct. When moving to the left, due to the existence of Gap (L pulses), when the motor rotates the number of pulses S, the number of pulses in the actual position of the block moving to the left is P=S-L (P>=0), which is not a given S, resulting in a deviation, which often requires Manual repositioning. Therefore, in the prior art, there are deficiencies in the positioning accuracy. Contents of the invention [0003] In view of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D3/18
CPCG05D3/18
Inventor 王精
Owner 深圳市合信自动化技术有限公司
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