Low-displacement vehicle engine cover sealing surface machining fixture

Abstract

The invention discloses a low-displacement vehicle engine cover sealing surface machining fixture, and belongs to the technical field of design of machine tool fixtures. The fixture comprises a baseplate, clamping devices, a gas pump, a handle, a gas conveying pipe, a gas storage cylinder, a cylinder pin, a stand column, a chuck, a piston shaft and a dowel pin; the baseplate is a cuboid sheet; the clamping devices are arranged on the upper surface of the baseplate; the gas pump is arranged at the right lower corner of the upper surface of the baseplate; the gas pump and the clamping devices are connected by the gas conveying pipe; opening and closing of the gas pump are controlled by the handle to realize conveying of pressure gas to the clamping devices; a workpiece is clamped; the dowel pin is arranged on the upper surface of the baseplate; and when the workpiece is mounted, the lower surface thereof is positioned through the dowel pin. The low-displacement vehicle engine cover sealing surface machining fixture is simple in structure of the clamping devices, the same in clamping force of four clamping devices, reliable and convenient for clamping, high in positioning precision, high in clamping force, low in labor intensity of workers and high in clamping efficiency.

Description

technical field [0001] The invention relates to the technical field of machine tool fixture design, in particular to a machining fixture for the sealing surface of a small-displacement automobile engine cover. Background technique [0002] The engine is the core component of various mechanical equipment, and the transmission parts contained in it are placed inside the engine cover to protect these components from working in a relatively clean environment. The shape of the engine cover is irregular and requires machining There are many surfaces. Traditional fixtures are used to position and clamp such irregularly shaped parts manually. The labor intensity of the workers is high, the clamping force of the workpiece is inconsistent, the positioning and clamping is unreliable, the machining accuracy is low, and it is easy to produce partial loads. The operation is troublesome and the processing efficiency is low. Contents of the invention [0003] The purpose of the present i...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of existing fixture workers such as high labor intensity, inconsistent workpiece clamping force, unreliable positioning and clamping, low processing accuracy, troublesome operation and low processing efficiency, and designed a small-displacement automobile engine cover. Cover sealing surface processing fixture, the clamping device has a simple structure, the four clamping devices have the same clamping force, reliable and convenient clamping, high positioning accuracy, large clamping force, low labor intensity for workers, and high clamping efficiency

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