Assembling apparatus and assembling method

Abstract

An assembling apparatus places a retainer on a valve spring to surround an upper end of a valve stem. The apparatus includes an assembling head, and a moving unit configured to move the assembling head between the supply position of the retainer and an assembling position. The assembling head includes a holding unit configured to hold the retainer, and a push unit configured to push out the retainer. The push unit includes a push member supported to be able to advance/retreat along an elevating direction of the assembling head, and a biasing member configured to bias the push member in an advancing direction.

1 . An assembling head that places a retainer on a valve spring provided to surround an upper end of a valve stem, comprising:
 a holding unit configured to hold the retainer at a lower end; and   a push unit configured to push out the retainer held by the holding unit,   wherein the push unit comprises:   a push member supported to be able to advance/retreat along an elevating direction of the assembling head; and   a biasing member configured to bias the push member in an advancing direction.   
     
     
         2 . The assembling head according to  claim 1 , wherein the push unit is configured to push out the retainer toward the valve spring downward while engaging with the retainer when holding of the retainer by the holding unit is canceled.