Squeezing rivet lower die, squeezing rivet upper die, squeezing rivet assembly and squeezing rivet machine

Abstract

A kind of press-in lower die, press-in upper die, press-in assembly and press-in machine, press-in lower die includes lower die seat, lower die head and first connecting piece, lower die seat includes first installation part, first end wall and first circumferential wall around first end wall, first installation part and first end wall are located at both ends of lower die seat respectively, first installation part is used to install lower die seat, first end wall is equipped with first installation slot, first circumferential wall is equipped with first through hole, first through hole is communicated with first installation slot;Lower die head one end is detachably inserted in first installation slot, the other end protrudes from first end wall and forms first holding surface for holding workpiece;First connecting piece one end passes through first through hole and abuts on lower die head.This application lower die head is connected with lower die seat in detachable way, when press-in lower die wears or needs to replace different specifications, only need to replace lower die head alone, reduce press-in machine maintenance cost.When lower die head is disassembled, only need to operate first connecting piece, improve the convenience of lower die head disassembly.

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