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Positioning drive and method for positioning an output element

A driving part and positioner technology, which is applied in the direction of electrical components, components with teeth, transmission parts, etc., can solve the problems that affect the effectiveness of the drive part of the positioner, complex structure, etc.

Active Publication Date: 2018-03-27
EGT EPPINGER GETRIEBE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage here is that at each point in time a pretensioning force of the mechanical pretensioning element is induced, which negatively affects the effectiveness of the positioner drive
Devices for enabling selective activation and deactivation of such mechanical pretensioning elements are structurally complex and require additional actuators

Method used

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  • Positioning drive and method for positioning an output element
  • Positioning drive and method for positioning an output element
  • Positioning drive and method for positioning an output element

Examples

Experimental program
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Embodiment Construction

[0050] figure 1 An embodiment of the positioner driver 15 is shown in block circuit diagram form. The positioner drive 15 is used to move or position the driven element 16 . The driven element 16 can be, for example, a table or a slide for positioning or adjusting the movement or advancement of the tool or of the workpiece. The driven element 16 can be driven rotationally or translationally.

[0051] The driven element 16 is connected to a coupling output 17 of a mechanical coupling unit 18 . According to the example, the coupling unit 18 is embodied as a transmission, for example as a spur gear or another gear. It has a first coupling input 19 and a second coupling input 20 . Each coupling input 19 , 20 is positively coupled to a coupling output 17 . Furthermore, in this exemplary embodiment the two coupling inputs 19 , 20 are also positively coupled to each other. As a result, the movement at the coupling output 17 cannot be independent of one of the two coupling input...

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PUM

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Abstract

The invention relates to a positioning drive (15) and to a method for positioning an output element (16). The positioning drive (15) has a first stepping drive unit (21), which has a first stepping drive open-loop controller (22) and a first stepping motor (23), and a second stepping drive unit (24), which has a second stepping drive open-loop controller (25) and a second stepping drive (26). Thetwo stepping drives (23, 26) and the output element (16) are coupled, in respect of force and driving, by means of a mechanical coupling unit (18). A central unit (31) controls the two stepping driveopen-loop controllers (22, 25) in an open-loop manner by means of respective control signals (A1, A2). Each of the control signals (A1, A2) specifies the target stator field angle and the target rotorfield angle, which is set by means of the associated stepping drive open-loop controller (22) or (25). The central unit (31) has a superordinate closed-loop controller for the position of the outputelement (16). The central unit also has a subordinate open-loop or closed-loop controller in order to set a bracing torque (M23, M26) for each stepping motor (23, 26). The bracing torques (M23, M26) result from the setting of an actual load angle (lambda 23,ist, lambda 26,ist) at the stepping drive (23, 26) in question.

Description

technical field [0001] The invention relates to a positioner drive and a method for positioning a driven element. The driven element can be driven linearly or rotationally. The driven element can be, for example, a translationally or rotationally driven table or slide for a tool or workpiece. Background technique [0002] In many applications driven elements moved by the positioner drive must be able to be positioned very precisely, for example tables or slides of machine tools or measuring machines, in order to obtain correspondingly high precision in the case of machining or measuring or inspecting workpieces Accuracy. In the case of manufacturing such a positioner drive, the mechanism transmitting the movement has elasticity, manufacturing tolerances, friction and backlash or loss. Due to these inadequacies, inaccuracies or imperfections may result in positioning the driven element. [0003] In addition, play in the mechanical transmission within the positioner drive ...

Claims

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Application Information

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IPC IPC(8): H02P8/40
CPCF16H2057/122H02P8/40H02P5/485F16H55/18F16H57/12G05B19/404H02P8/22
Inventor T.帕尔默U.埃平格
Owner EGT EPPINGER GETRIEBE TECH