Hydraulic indexing clamping device that can quickly change workpieces and index quickly

Abstract

The invention discloses a hydraulic indexing clamping device capable of rapidly replacing a workpiece and fast in transposition. The hydraulic indexing clamping device is structurally characterized by comprising a fixing base, a rotating assembly, a positioning assembly, a pressing assembly and a hydraulic rotating connector. The fixing base comprises a disc connecting part, an upper base plate, a middle base plate and a lower base plate. The rotating assembly comprises a rotation shaft, a swing hydraulic cylinder, an overrun clutch and an anti-rotation assembly. The swing hydraulic cylinder drives the rotation shaft to rotate in one direction through the overrun clutch. The positioning assembly is used for preventing the rotation shaft from rotating during machining. The anti-rotation assembly is used for multiple times of continuous rotation of the overrun clutch, and the rotation shaft is prevented from reversely rotating. The pressing assembly comprises a second hydraulic cylinder, a thrust ball bearing and a pressing disc. The fixing base is fixedly arranged at the right end of a machine tool main shaft installing base through the disc connecting part of the fixing base. The hydraulic rotating connector is arranged at the left end of the machine tool main shaft installing base. Corresponding oil outlets of the hydraulic rotating connector are communicated with the swing hydraulic cylinder and the first hydraulic cylinder through corresponding pipelines.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing equipment, and in particular relates to a hydraulic indexing and clamping device capable of quickly replacing workpieces and having fast indexing. Background technique [0002] At present, in the processing of mechanical parts, it is often encountered that various parts such as valve bodies, three-way or four-way pipe joints need multi-faceted transposition and multi-process processing. Positioning and clamping greatly reduces the processing efficiency, and the position requirements of the processing parts on each surface cannot be guaranteed due to the two positionings, thereby reducing the qualified rate of the product. Some fixtures such as hydraulic clamping or pneumatic clamping used on some highly automated mechanical processing machine tools, when processing different surfaces of the same workpiece, only need to index and index the workpiece during the processing. Some indexa...

AI Technical Summary

Problems solved by technology

Some indexable and indexable fixtures are positioned by stepping motors, which is not only costly, but also cannot be used for motion and rotation

Some indexing and indexing fixtures are rotated by a rotary hydraulic motor and positioned by positioning pins. For 90-degree indexing, 4 limit hydraulic devices are required, and for 45-degree indexing, 8 limit hydraulic indexing devices are required. , complex structure, high cost

Some indexable and indexable fixtures use manual indexing, which cannot be used on moving parts, and the efficiency is low

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