At present, most of the main parts of the vane pump are […]
At present, most of the main parts of the vane pump are processed by CNC machine tools (such as lathes and curved grinders) and machining centers, high-efficiency special planes (such as rotor grinders, etc.) and general-purpose machine tools (such as turret lathes, surface grinders, internal and external cylindrical grinders, and head planers). And grinding machines and polishing machines, etc.). The technical requirements for the processing of key parts of the vane pump are as follows: The Vickers vane pump states:
(1) The general technical requirements for stator machining are: end face parallelism tolerance is 0.005mm; inner cylinder face and end face perpendicularity tolerance is 0.003mm; inner hole surface roughness is 0.4~0.1μm.
The main processing process of the stator is: the end face and the outer circle of the car, the inner hole of the car, the reference mark of the car, the other end face of the turning head, the chamfering of the outer circle, the hole of each end of the drill, the positioning pin hole of the hinge, the two sides of the milling circle Hole→milling both sides of the four slopes→rough, fine milling inner curve→quenching→vibration polishing deburring→rough grinding both ends→finishing both ends→grinding outer circle→grinding curve→vibration polishing deburring→grinding both ends→demagnetization, Cleaning, anti-rust → finished product inspection → into the finished product library.
(2) The general technical requirements for the rotor processing are: the rotor width is 0.02~0. 04mm smaller than the stator width; the end face parallelism tolerance is 0.005mm; the end surface roughness is 0.2-0.1μm; the blade groove parallelism tolerance is 0.01mm The surface roughness of the vane groove is 0.2 to 0.1 μm.
The main processing process of the rotor is: material normalizing → rough end face and outer circle, drilling → finishing end face and outer circle, reaming, chamfering → finishing the other end face, boring, reaming, chamfering → pulling Inner hole spline → rough grinding end face (positioning with reference plane when turning) → drilling, hinge positioning hole → drilling, milling, reaming 12 radial holes → drilling blade groove bottom hole → milling blade groove → removing sharp edge burrs → seepage Carbon quenching→Vibration polishing deburring→珩Ream pin hole→ Grinding hole→Finishing both ends→ Grinding blade groove→Demagnetization, cleaning, anti-rust→ Finished product inspection→Into the finished product library.
(3) The general technical requirements for blade processing are: the clearance between the blade and the rotor slot is 0.01 to 0.02 mm; the blade width is 0.01 mm smaller than the rotor width; the blade needs to be ground, and the surface roughness of the sliding surface is 0.2 μm.
The main processing process of the blade is: blanking, blanking, planing, two planes and side, all into small pieces, quenching, vibrating, polishing, deburring, roughing, two planes, one fine grinding, two planes, one coarse grinding, three sides, one fine Grinding three sides, a grinding top surface, a vibrating polishing deburring, demagnetization, cleaning, anti-rust, a finished product inspection. Into the finished product library.
(4) The processing of the distribution plate is generally required to be: the surface roughness Ra is 0.2 μm.
The main processing process of the distribution plate is: rough, fine car end face and outer circle, reaming → roughing head, fine car end face and outer circle → drilling positioning hole and bolt through hole → hinge positioning pin hole → drilling through oil inclined hole → Rough grinding of large end face stamping V-shaped unloading groove → aging de-stressing → grinding end faces → vibrating polishing deburring → grinding large end face → surface soft nitriding → grinding outer circle → grinding large end face → demagnetization, cleaning, anti-rust → finished product inspection →Man parts finished product library.
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