Screw drill motor stator manufacturing and forming machining machine and machining method

Abstract

The invention relates to a screw drill motor stator manufacturing and forming machining machine and machining method. The screw drill motor stator manufacturing and forming machining machine comprises a bottom plate, a placing device, a driving device and a grinding device, wherein the placing device and the driving device are sequentially installed at the upper end of the bottom plate from left to right, and the portion, close to the left end, of the outer surface of the driving device is rotatably connected with the grinding device through a bearing. By means of the screw drill motor stator manufacturing and forming machining machine and machining method, the problems that when an existing machine conducts surface grinding on the inner walls of screw drill motor stators, inner wall grinding can only be conducted on the stators of the same specification generally, corresponding adjustment cannot be conducted within a certain range according to the diameters of the inner walls of the stators, thus the inner walls of the stators of different sizes cannot be ground, the mechanical use flexibility is reduced, corresponding adjustment cannot be conducted according to the radians of arc-shaped protrusions on the inner walls of the stators, thus grinding effects are reduced, moreover, a grinding mechanism cannot be replaced, thus the grinding effects of the grinding machine after long-term use are reduced, and the like can be solved.

Description

technical field [0001] The invention relates to the technical field of drilling tool production, in particular to a manufacturing and forming processing machine and processing method for a motor stator of a screw drilling tool. Background technique [0002] The screw drilling tool is a volumetric downhole power drilling tool that uses drilling fluid as the power and converts the fluid pressure energy into mechanical energy. The working principle of the screw drilling tool is that the mud pumped by the mud pump flows through the bypass valve and enters the motor. A certain pressure difference is formed between the inlet and outlet, which drives the rotor to rotate around the axis of the stator, and transmits the speed and torque to the drill bit through the cardan shaft and the transmission shaft, so as to realize the drilling operation; the screw drilling tool is mainly composed of a bypass valve, a motor, a universal The motor consists of four major assemblies, including th...

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Problems solved by technology

[0003] At present, the existing machines usually have the following deficiencies when grinding the surface of the inner wall of the stator of the screw drilling tool motor: 1. The existing machines can only grind the inner wall of the stator of the same specification, and cannot grind the inner wall of the stator within a certain range. The diameter of the stator can be adjusted accordingly, so that the inner wall of the stator of different sizes cannot be polished, which reduces the flexibility of the machine; 2. The existing machine cannot be adjusted according to the radian of the arc-shaped protrusion on the inner wall of the stator. The arc-shaped protrusions on the inner wall of the stator are prone to separation, which reduces the grinding effect, and the grinding mechanism cannot be replaced, which reduces the grinding effect of the grinding device for long-term use

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