METHOD OF MANUFACTURING LEAD SCREW FOR LINEAR ACTUATOR

PROBLEM TO BE SOLVED: To provide a method of manufacturing a lead screw for a linear actuator capable of securely preventing the slight deviation of an origin position by resin filled in a metallic pipe even if the ambient temperature is increased to precisely perform the linear motion of a stepping...

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Bibliographische Detailangaben
1. Verfasser:	MATSUSHITA KUNITAKE
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method of manufacturing a lead screw for a linear actuator capable of securely preventing the slight deviation of an origin position by resin filled in a metallic pipe even if the ambient temperature is increased to precisely perform the linear motion of a stepping motor by rotation. SOLUTION: This method of manufacturing the lead screw comprises a step for boring a plurality of holes in the wall body part of the metallic pipe at pre-determined intervals, a step for welding a ball at the end of the metallic pipe, a step for positioning the metallic pipe at a predetermined position in the cavity of a molding die, and a step for resin-molding a thread part by filling a resin material from the outside of a hole row bored in the wall body part of the metallic pipe and filling the resin in the metallic pipe until the resin directly touches the ball. COPYRIGHT: (C)2004,JPO