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Electro-adhesion gripper for holding workpieces

A technology for grabbers and workpieces, which is applied in the direction of electrostatic attraction holding devices, circuits, electrical components, etc., can solve the problems of expensive electroadhesive grabbers and complex structures of electroadhesive grabbers, and achieve Uniform force distribution, avoiding voltage breakdown, and increasing the effect of total inductance

Active Publication Date: 2015-06-17
TRUMPF WERKZEUGMASCHINEN GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] An additional measuring circuit can be provided for checking the occupancy of the electroadhesive gripper, but this complicates the construction of the electroadhesive gripper and makes the electroadhesive gripper considerably more expensive

Method used

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  • Electro-adhesion gripper for holding workpieces
  • Electro-adhesion gripper for holding workpieces
  • Electro-adhesion gripper for holding workpieces

Examples

Experimental program
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Embodiment Construction

[0063] Figure 1a The region of the electrode arrangement 25 of the first embodiment of the electroadhesive gripper according to the invention is shown in a schematic plan view.

[0064] The electrode arrangement 25 comprises a first helical electrode 1 (shown in dashed lines) and a second helical electrode 2 (shown in solid). The two electrodes 1 , 2 extend completely bifilarally and each comprise approximately four turns; the distance A of the electrodes 1 , 2 (measured approximately perpendicular to the local electrode extension) is essentially the same for all helix radii R here. On the outer ends 31 , 32 of the electrodes 1 , 2 respectively, voltage terminals 41 , 42 for connecting a voltage, preferably an alternating voltage, are provided. Diode components 6 , here comprising individual diodes, are connected to the inner ends 51 , 52 of the electrodes 1 , 2 ;

[0065] To operate the electroadhesion, a voltage is connected with a polarity in the blocking direction of the...

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PUM

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Abstract

An electroadhesion gripper for retaining workpieces includes a first spiral electrode having a plurality of turns and a second spiral electrode having a plurality of turns, the two spiral electrodes being arranged so as to be at least partially bifilar. The electroadhesion gripper has a diode by which the first and second spiral electrodes are connected to each other. Portions of the first and second spiral electrodes are connected in series by the diode, and an entirety of the connected portions of the first and second spiral electrodes has a perceptible inductivity. The gripper is driven with an alternating-current (AC) voltage and an occupation state and wear degree of the gripper can be determined during the AC voltage cycle.

Description

technical field [0001] The invention relates to an electroadhesive gripper for holding workpieces, comprising a first helical electrode with multiple turns and a second helical electrode with multiple turns, wherein the two helical electrodes are at least partially double line setting. Background technique [0002] Such an electroadhesive gripper is disclosed by GB 1 352 715 A. [0003] The electroadhesive gripper is used to fix the workpiece on the adhesive surface (grasping surface) of the gripper, such as transporting the workpiece to the industrial production process, especially the production process of the joint. [0004] Two electrodes are formed on the adhered surface, and a voltage is applied to the two electrodes so that a strong electric field exists between the electrodes. The workpiece that is close to the adhesion surface remains attached to the adhesion surface when the electric field is applied. [0005] GB 1 352 715 A (Stevko) discloses an electroadhesive...

Claims

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Application Information

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IPC IPC(8): H01L21/683H02N13/00
CPCH01L21/6833H02N13/00
Inventor W·蒂尔A·海因茨
Owner TRUMPF WERKZEUGMASCHINEN GMBH & CO KG
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