Planer special for slide valve machining and machining method of planer

Abstract

The invention provides a planer special for slide valve machining and a machining method of the planer. The planer comprises a planer supporting mechanism, an automatic rotating mechanism and a planer tool moving mechanism. The automatic rotating mechanism comprises a tensioning screw and at least one pair of conical elastic expansion tires used for fixing a sliding valve; the planer supporting mechanism sleeves the automatic rotating mechanism and used for fixedly supporting the automatic rotating mechanism; and the automatic rotating mechanism is simple in structure, intermittent movement of the sliding valve can be achieved, and meanwhile the requirement for centering of the two ends of the sliding valve is met. The planer tool moving mechanism is provided with a planer tool sliding up and down, and the planer tool conducts left-right reciprocating rectilinear motion in the axial direction and conducts up-down vertical motion in the radial direction. According to the planer, the problems that in the prior art, existing vacuum pump sliding valve outer circle machining is low in automation degree and machining efficiency, and precision consistency is difficult to guarantee are solved.

Description

technical field [0001] The invention relates to the technical field of mechanical manufacturing, in particular to a special planer for slide valve processing and a processing method thereof. Background technique [0002] Due to its structural characteristics, the capacity of the slide valve pump is much larger than that of the rotary vane pump, so it is often used in large vacuum equipment. Due to the large eccentricity of the rotating mass of the slide valve pump, if the slide valve does not have a good mass balance, it will generate large vibrations during operation. The vacuum pump slide valve is characterized by large diameter and long axial length. At present, the following difficulties exist in the machining of the outer circle of the vacuum pump slide valve: [0003] 1. The dimensional accuracy of the outer circle is high, and the requirements for cylindricity and perpendicularity of both ends are also high; [0004] 2. Conventional planers can only perform reciproc...

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Problems solved by technology

[0006] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a method for solving the problems in the prior art that the machining of the outer circle of the vacuum pump slide valve has a low degree of automation, low processing efficiency, and difficulty in ensuring consistent accuracy

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