Assembling apparatus and assembling method
AssigneeHirata Corporation
InventorsHisayuki Sueoka, Tsutomu Nakauchi, Koji Kurokawa
Life of this patent
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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.
Claims4
An assembling method of placing, by an assembling head, a retainer on a valve spring provided to surround an upper end of a valve stem,
- wherein the assembling head comprises:
- 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 assembling method comprises a moving step of moving the assembling head between a supply position of the retainer and an assembling position,
- wherein the moving step comprises:
- a horizontal moving step of moving the assembling head in a horizontal direction;
- and
- an elevating step of raising/lowering the assembling head, and
- wherein the elevating step comprises:
- a lowering step of lower the assembling head that holds the retainer;
- a lowering stop step of stopping lowering of the assembling head before the retainer is placed on the valve spring;
- a holding cancel step of starting cancel of holding of the retainer by the holding unit and raising of the assembling head;
- and
- a placement step of causing the push unit to push out the retainer held by the holding unit and placing the retainer on the valve spring.
Dependencies are inferred from the claim text.