High-purity servomotor oil port structure

Abstract

The utility model relates to hydraulic pressure oil cylinder technical field especially relates to a kind of high cleanliness servomotor oil port structure, including cylinder barrel and oil passage seat, cylinder barrel outer surface is equipped with the tamping groove, its groove bottom is equipped with oil passage, oil passage seat is located on the tamping groove, and the connecting hole inner wall of oil passage seat is welded to form inner ring seal along the circumference with the groove bottom of tamping groove, simultaneously its outer wall and cylinder barrel outer wall welded to form outer ring seal. By completing internal weld before processing, the problem that machining iron filings is left in assembly gap in traditional process is completely eliminated, the cleanliness of oil is guaranteed from the source. The connecting hole port is provided with chamfer convenient for welding, and the connecting hole of oil passage seat is sealed and protected by plug with combined sealing pad, further avoid the pollution introduced by hydraulic cylinder, significantly improve system reliability.

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