The rapid development of metal smelting technology and highend equipment technology in China, the lifting clamp and under the environment of high temperature rotating clamps locked on the operation requirements of higher, in its safety, reliability, accuracy, under high temperature, etc, put forward the higher request. Traditional rotating clamping mechanism through two sets of electrical control hydraulic cylinder complete jig ascension and spin locks, or the mechanical mechanism for rotating clamps locked, takeoff and landing out of sync with leakage, short life, etc., in this article, through the analysis of the above characteristics, developed a kind of modular fixture, adopts the hydraulic and mechanical combination, set with lock for ascension. Implements the tooling in high temperature environment, more embodies the today the new idea of energy saving, environmental protection, security, this article’〖KG-*2〗s technology has won three patents.