Hole expanding device for lens holder

摘要

A hole expanding device includes an electric heating device, a moving device, an rotating device, and a carrying device. The electric heating device includes a transition portion and a hole expanding rod fixed onto the transition portion. The electric heating device heats the hole expanding rod to a predetermined temperature. The rotating device is fixed onto the moving device. The moving device drives the rotating device to move along a direction parallel to the hole expanding rod. The carrying device is fixed onto the rotating device and includes a receiving groove for receiving and fixing a workpiece. The rotating device rotates the carrying device to make two opposite surfaces of the workpiece face the hole expanding rod.

主权项

1. A hole expanding device, comprising:
an electric heating device comprising a hole expanding rod; a moving device; a rotating device fixed onto the moving device; and a carrying device fixed onto the rotating device, and comprising a receiving groove configured to fix and receive a workpiece; wherein the electric heating device is configured to heat the hole expanding rod to a predetermined temperature; the moving device drives the rotating device toward the hole expanding rod; the rotating device rotates the carrying device, and makes two opposite surfaces of the workpiece respectively move toward the hole expanding rod; wherein the carrying device comprises a carrying platform; the carrying platform includes an upper surface and an opposite lower surface; one side of the carrying platform is connected to and fixed with the rotating plate; the upper surface defines a receiving groove, and the lower surface defines a through hole that extends through a bottom of the receiving groove; and wherein the carrying device comprises a holding piece is rotatably fixed on the upper surface by a screw, the holding piece is rotated to cover a top of the receiving groove so as to restrict the workpiece in the receiving groove.