Hydraulic rotary four-jaw clamp

Abstract

The invention discloses a hydraulic rotary four-claw clamp. The hydraulic rotary four-claw clamp comprises a chuck body, wherein an annular bracket is arranged above the chuck body, and T-shaped grooves are formed in the annular bracket; racks are arranged on the side surface of the chuck body and are connected with a gear and a stepping motor; an oil disc is fixed on the chuck body, a cone toothtable is arranged above the oil disc, convex rails are arranged on the cone tooth table, four clamping claws are arranged above the cone tooth table, T-shaped convex strips matched with the T-shaped grooves are arranged at the upper parts of the clamping claws, and arc-shaped grooves matched with the convex rails are formed in the lower parts of the clamping claws; a fixed clamping plate is fixedon the inner side of the oil disc, an oil disc oil inlet cavity is formed in one side of the fixed clamping plate, and an oil disc oil outlet cavity is formed in the other side of the fixed clamping plate; and a pushing plate is arranged outside the cone tooth table, the oil disc oil inlet cavity is connected with a hole A of a first reversing valve, holes B, T and P of the first reversing valve are respectively connected with the oil disc oil outlet cavity, an oil tank and an oil pump, and the oil pump is connected with the oil tank. The hydraulic rotary four-claw clamp has the characteristics of simple structure, convenience in disassembly and safety in operation.

Description

technical field [0001] The invention relates to a four-claw clamp, in particular to a hydraulically rotating four-claw clamp. Background technique [0002] In today's society, welding fixture design is one of the most critical work contents in the production preparation process in the field of mechanical manufacturing. At the same time, in the process of welding production process design, welding fixture design is also one of the most critical components. For many mechanical manufacturing and processing fields, if there is no technical support and guarantee provided by welding fixtures, there will be no final welding products. However, in the process of practical work at the present stage, the clamping methods adopted for pipe parts are either traditional special fixtures or combined fixtures that are expensive and complex in structure. For traditional special fixtures, not only requires a lot of manpower, It also does not have a fast and accurate operating mechanism, and ...

AI Technical Summary

Problems solved by technology

However, in the process of practical work at the present stage, the clamping methods adopted for pipe parts are either traditional special fixtures or combined fixtures that are expensive and complex in structure. For traditional special fixtures, not only requires a lot of manpower, It does not have a fast and accurate operating mechanism, and cannot automatically rotate itself, causing inconvenience to welding personnel, resulting in low quality clamping and welding work, and uneven quality of welding products

In addition, the safety performance of traditional special fixtures is not perfect

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