High Pressure Sealed Nitrogen Gas Spring Lever Cylinder

Abstract

The invention discloses a high-pressure sealing nitrogen spring lever clamping device. An oil cylinder end cover is installed at the bottom of an oil cylinder body in a sealing mode, an oil cylinder piston is movably installed in the inner cavity of the oil cylinder body, the position between the inner cavity of the oil cylinder body and the large-end portion of the oil cylinder piston is sealed, the extended end of the oil cylinder piston penetrates through the top of the oil cylinder body to be movably connected with a press arm, the position between the extended end of the oil cylinder piston and the top of the oil cylinder body is sealed, the top of the oil cylinder body is movably connected with one end of a connecting rod, the other end of the connecting rod is movably connected with the press arm, and an oil inlet channel is arranged at the top of the oil cylinder body. A nitrogen spring full of nitrogen in the inside is arranged between the large-end portion of the oil cylinder piston and the oil cylinder end cover. The high-pressure sealing nitrogen spring lever clamping device utilizes the high-pressure sealed nitrogen spring to perform propulsion, clamps a workpiece through a hinge mechanism, does not need a power source, achieves pressure maintaining and clamping through the nitrogen spring, is high in stability, free of pollution and large in clamping stroke, saves energy, can adjust the clamping height and is driven to lift the press arm through oil pressure when the workpiece is loosened.

Description

technical field [0001] The invention relates to the technical field of clamp components, in particular to a high-pressure sealed nitrogen gas spring lever clamp. Background technique [0002] With the continuous advancement of science and technology, the requirements for clamps in the industrial field are getting higher and higher. It is required that the clamps not only meet the various needs of the mechanical structure, but also require the miniaturization and high performance of the clamp components. Conventional clamp elements used in the prior art, such as single-action clamps (hydraulic or pneumatic clamp, spring force release), double-action clamps (hydraulic or pneumatic clamp, spring force release) and hydraulic Loosen the spring clamp, etc. The clamping force of the hydraulic clamp is clamped by the power of the hydraulic power source, and the spring clamp is clamped by the spring force. The elastic force generated by the spring clamp increases proportionally with...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a high-pressure sealed nitrogen spring lever clamp to solve the problems of pressure change, leakage and instability during the clamping process; the high-pressure sealed nitrogen spring clamp works without a power source, Issues of sealing, stability control, lubrication, energy saving and cost reduction under high temperature and pressure

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