Automatic rivet hammering rivet inlet hole and upset head height online detecting method and device

Abstract

The invention provides an automatic rivet hammering rivet inlet hole and upset head height online detecting method and device. The device comprises an installing base plate, an outer ejection sleeve assembly, an inner ejector rod assembly, a detecting device and a sliding device; the sliding device is arranged on the installing base plate; the outer ejection sleeve assembly and the inner ejector rod assembly are connected with the installing base plate through the sliding device; the outer ejection sleeve assembly and the inner ejector rod assembly can perform stretching and retracting driving, the outer ejection sleeve assembly can abut against a workpiece through stretching and retracting driving, and the inner ejector rod assembly can abut against the top of a rivet through stretching and retracting driving; the detecting device can measure the relative displacement between the outer ejection sleeve assembly and the inner ejector rod assembly, and the rivet inlet hole and the upsethead height can be monitored through relative displacement. The detecting device is simple in structure and convenient to use; the rivet inlet hole detecting method is simple and direct and high in accuracy; the rivet specification mistake detecting function is achieved, and the method is safer; automatic online detection for the upset head height is achieved, the labor amount is lowered, and meanwhile the riveting quality can be monitored in time.

Description

technical field [0001] The invention relates to the field of automatic hammer riveting, in particular to a method and device for online detection of rivet entry hole and heading height of automatic hammer riveting. Background technique [0002] Hammer riveting is a method of using the piston of the riveting gun combined with the riveting hammer to repeatedly impact the rivet, and at the same time, the other end of the rivet is supported by the top iron to upset the nail rod, and finally form an upset head, thereby connecting the workpieces. Rivet into the hole means that the rivet is inserted into the hole after the connection is completed. Being able to detect whether the rivet has been correctly inserted into the rivet hole is an important guarantee for the safety of automatic riveting. The traditional rivet entry inspection often uses the detection of whether the push rod and the surface of the workpiece are flush on the rivet insertion side to determine whether the rive...

AI Technical Summary

Problems solved by technology

[0003] Therefore, the current rivet entry detection method is to detect whether the push rod / rivet hammer is flush with the surface of the workpiece to determine whether the rivet has been inserted into the hole correctly, which is not direct enough; the head height detection is manual offline detection, and the response is sluggish.

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