Wedge-shaped part press-riveting device and method

Abstract

The invention discloses a wedge-shaped part press-riveting device and method. An upper pressure head assembly and a lower pressure head assembly of the press-riveting device are mounted on an arch-shaped frame from top to bottom; the upper pressure head assembly comprises an angle self-adaptive upper pressure head mechanism and a pressing cylinder; the pressing cylinder is vertically and fixedly arranged on the arch-shaped frame; the angle self-adaptive pressure head mechanism is arranged at the bottom end of a piston rod of the pressing cylinder; the lower pressure head assembly comprises an angle self-adaptive lower pressure head mechanism and a lower pressure head height adjusting mechanism; the lower pressure head height adjusting mechanism is arranged on the arch-shaped frame; and the angle self-adaptive lower pressure head mechanism is arranged at the top end of the lower pressure head height adjusting mechanism. The wedge-shaped part press-riveting method comprises the following steps of: loosening an upper pressure head positioning bolt and a lower pressure head positioning bolt; starting the pressing cylinder, and enabling the piston rod to descend to the maximal stroke position; putting a wedge-shaped part, enabling the lower pressure head to rotate in a self-adaptive mode, and enabling the upper surface of the lower pressure head to be in tight fit with the lower surface of the wedge-shaped part; lifting the lower pressure head, and enabling the upper surface of the wedge-shaped part to be in tight fit with the lower surface of the upper pressure head; screwing up the upper pressure head positioning bolt and the lower pressure head positioning bolt; returning the piston rod of the pressing cylinder to the initial position; mounting rivets; and starting the pressing cylinder to apply pressure to the rivets, thereby completing riveting.

Description

technical field [0001] The invention belongs to the technical field of riveting, in particular to a wedge riveting device and method. Background technique [0002] As one of the most conventional mechanical connection methods, riveting is widely used in many industries, and the workpieces of conventional riveting are mostly planar parts, and the traditional riveting device is completely applicable. However, when the workpiece is a wedge-shaped piece, since the upper and lower surfaces of the wedge-shaped piece are not parallel and have an included angle, when the wedge-shaped piece is riveted by a traditional riveting device, the upper head of the riveting device may scratch the upper surface of the wedge-shaped piece. In the case of the wedge, it is easy to cause damage to the upper surface of the wedge, thereby affecting the surface integrity of the wedge. In addition, in the process of double-sided countersunk head riveting of wedge-shaped parts, there will also be situa...

AI Technical Summary

Problems solved by technology

However, when the workpiece is a wedge-shaped piece, since the upper and lower surfaces of the wedge-shaped piece are not parallel and have an included angle, when the wedge-shaped piece is riveted by a traditional riveting device, the upper head of the riveting device may scratch the upper surface of the wedge-shaped piece. In the case of the wedge, it is easy to cause damage to the upper surface of the wedge, thus affecting the surface integrity of the wedge

In addition, in the process of double-sided countersunk head riveting of wedge-shaped parts, there will also be situations where the rivet cannot fill the pier head socket

[0003] Therefore, the traditional riveting device is no longer suitable for the riveting work of the wedge, and a new riveting device must be designed for the wedge.

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