Slipway mechanism of shell air tightness detection equipment

Abstract

The invention relates to a slipway mechanism for loading and fixing a working piece shell on shell air tightness detection equipment, comprising a slipway, a replaceable platen, a bearing soft gasket, a fixed block, positioning pins, a side pressure oil cylinder, a plugger and rollers. The replaceable platen is fixed on the slipway, the bearing soft gasket horizontally covers the replaceable platen, the fixed block is arranged at the left side of the replaceable platen, is fixed on the slipway and is in threaded connection with positioning screws for fixing the working piece shell, the positioning pins are arranged at the rear side of the replaceable platen, fixed on the slipway and used for limiting the working piece shell, the side pressure oil cylinder is horizontally arranged at the right side of the replaceable platen, the cylinder body of the side pressure oil cylinder is mounted on an oil cylinder mounting plate of the slipway, a piston rod of the side pressure oil cylinder is connected leftwards with the plugger, a roller mounting frame is mounted at the bottom of the slipway, and the rollers are mounted on the roller mounting frame through a pin shaft. The invention has skillful and reasonable structure and strong reliability for fixing the working piece shell.

Description

technical field [0001] The invention belongs to the technical field of testing equipment, and relates to an accessory part of a shell air tightness testing equipment, in particular to a sliding table mechanism for loading and fixing a workpiece shell. Background technique [0002] With the rapid development of the economy, industries such as general machinery, automobiles, and excavation are also increasingly prosperous. All these industries require various power equipment such as diesel engines and gasoline engines, which lead to a substantial increase in the demand for diesel engines and gasoline engines. As a necessary part, the housing of diesel engine and gasoline engine has entered the era of mass production. The casing of the engine is usually formed by casting, and defects such as air shrinkage cavities and cracks sometimes occur during the casting process. These defects easily lead to problems such as oil leakage and oil leakage, seriously pollute the working envi...

AI Technical Summary

Problems solved by technology

[0003] The current air tightness test is usually carried out manually, that is, immersing the closed engine casing in water, filling the engine casing with pressurized air in the water, and observing whether the engine casing is leaking. This operation is labor-intensive and the work efficiency is high. Low, unstable detection quality

There are also some automated air tightness testing equipment, but their versatility is poor. One testing equipment is limited to the detection of one or several shells, which increases the production cost of multi-variety shell manufacturers.

In addition, the existing detection equipment uses rigid seals when multi-point sealing, and cannot effectively seal multiple points at the same time.

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