Component detection device and component detection method

Abstract

Provided is a component detection device, which is installable on component processing means which performs a predetermined operation to a conductive component interposed between one conductive member and another conductive member, the component detection device comprising a detection circuit (41) for distinguishing between the conductive component and a conductive foreign matter interposed between the one conductive member and the another conductive member, the detection circuit (41) being electrically connected between the one conductive member and the another conductive member, wherein the detection circuit (41) comprises: a reference voltage generating circuit section (43) for generating a reference voltage based on an input voltage; a voltage comparing circuit section (44) for comparing between the reference voltage and a detection voltage input from a detection terminal; and a sensitivity adjusting circuit section (45) for adjusting the detection voltage so that, when the conductive component is interposed between the one conductive member and the another conductive member, the detection voltage is equal to or smaller than the reference voltage, and when the conductive foreign matter is interposed between the one conductive member and the another conductive member, the detection voltage is larger than the reference voltage.

Description

technical field [0001] The present invention relates to, for example, a vehicle body welding process or a sheet metal welding process of household electric products, etc., which is attached to perform a predetermined work on a conductive member interposed between one conductive member and the other conductive member. A parts processing mechanism to discriminate a conductive part and a conductive impurity interposed between two conductive members and a parts inspection method. Background technique [0002] In addition, as the above-mentioned parts processing mechanism, there exist various in the field of parts conveyance, parts processing, etc. Specific examples include an electrode part of a resistance welding machine that welds a protruding bolt as a conductive member to a counterpart member, a stopper part of a component feeder that vibrates a circular ball to feed out a protruding nut, etc. . [0003] For example, Patent Document 1 discloses an electrode portion of a re...

AI Technical Summary

Problems solved by technology

Although the above-mentioned false detection is a problem in the electrode part of the resistance welding machine, it actually also occurs in the field of electrical detection such as parts transportation other than resistance welding.

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