Clamp

Abstract

The invention discloses a clamp which has compact structure and high clamping strength and precision. The clamp comprises a pedestal, a fixed clamp jaw base and a movable clamp jaw base. The fixed clamp jaw base is fixed on the pedestal; the movable clamp jaw base is movably arranged on the pedestal; a fixed clamp jaw body is arranged on the fixed clamp jaw base; a movable clamp jaw body which matches with the fixed clamp jaw body is arranged on the movable clamp jaw base; a screw rod adjusting device is arranged in the pedestal; a piston cavity is arranged in the movable clamp jaw base; a piston is arranged in the piston cavity, and the piston cavity is divided into a front oil cavity and a rear oil cavity by the piston; two oil channels which are respectively communicated with the frontoil cavity and the rear oil cavity are arranged in the movable clamp jaw base; oil pipe joints are arranged at the oil channels; one side of the piston is provided with a piston rod; and the piston rod is connected with the screw rod adjusting device. The clamp adopts internally-mounted oil cylinder, thereby having very compact structure. In addition, the clamp can clamp the workpiece tightly without supporting the internally-mounted oil cylinder by adopting a long guiding rod. Moreover, the point of the application of the hydraulic force is close to the jaw of the clamp, thus the clamp has higher clamping strength and precision.

Description

technical field [0001] The invention relates to a clamp, in particular to a clamp driven by an oil cylinder. Background technique [0002] At present, the traditional tongs driven by oil cylinders adopt the structure of the finished oil cylinder. The oil cylinder needs a longer guide rod and more connectors to connect with the movable jaw body in the clamp to drive the movable jaw body. Move back and forth relative to the fixed jaw body. In this way, the volume of the entire clamp is too large, and the clamping force and precision are greatly reduced; moreover, in some equipment that can be made very compact in structure, in order to install this clamp, the volume has to be increased. , not only makes the whole device seem cumbersome, but also increases the manufacturing cost. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a clamp with compact structure, which can improve clamping strength and precision. [0...

AI Technical Summary

Problems solved by technology

In this way, the volume of the entire clamp is too large, and the clamping force and precision are greatly reduced; moreover, in some equipment that can be made very compact in structure, in order to install this clamp, the volume has to be increased. , not only makes the whole device appear bulky, but also increases the manufacturing cost

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