In the field of mechanical production, the mechanical shaft needs to be straightened after production to ensure that the straightness of the finished mechanical shaft meets the requirements. Steel pipe straightening machine is a device for straightening mechanical shafts. Due to the need to apply significant radial pressure to the mechanical shaft during the straightening process, the steel pipe straightening machine is generally driven by hydraulic devices, which control the direction and speed of the steel pipe straightening mechanism by controlling the flow and velocity of hydraulic oil.

Due to the extensive experience of workers and the sensitive speed control of steel pipe straightening machines, metal straightening can be quickly and accurately straightened. The existing hydraulic devices control the flow direction and flow rate of hydraulic oil through solenoid valves. The solenoid valve controls the flow rate of hydraulic oil in a stepped manner, so the movement speed of the straightening device cannot be precisely controlled; On the other hand, workers control the direction and speed of movement of the straightening device through buttons, which is not only cumbersome to operate, but also unable to accurately adjust according to the bending degree of each metal, which can easily lead to excessive straightening or prolonged straightening time.

Technical implementation elements:

The technical problem that the steel pipe straightening machine needs to solve is to provide a convenient operation of the steel pipe straightening machine, which can accurately control the straightening speed of the steel pipe straightening mechanism according to actual needs, and is easy to operate and responsive.

The positioning restrictions mentioned in the steel pipe straightening machine, including front, back, left, right, top, and bottom, are based on Figure 1 unless otherwise specified.

In order to solve the above technical problems, the steel pipe straightening machine provides a convenient to operate steel pipe straightening machine, including a frame, mechanical control mechanism, hydraulic control mechanism, steel pipe straightening mechanism, and detection mechanism,

The rack is equipped with a detection platform, which is used to fix the workpiece to be straightened and move the workpiece to be straightened according to the needs of straightening and detection;

The mechanical control mechanism is used to control the straightening and detection actions of the steel pipe straightening machine, as well as to proportionally reduce the operator's control amplitude and convert it into the control actions of the hydraulic control mechanism;

The hydraulic control mechanism provides hydraulic oil with different flow directions and flow rates to the steel pipe straightening mechanism based on the control actions provided by the mechanical control mechanism. The flow rate of the hydraulic oil varies linearly according to the control actions provided by the mechanical control mechanism;

The steel pipe straightening mechanism comprises a hydraulic cylinder vertically arranged above the detection platform, the hydraulic oil of the hydraulic cylinder is provided by the hydraulic control mechanism, the piston rod of the hydraulic cylinder faces the detection platform, and the end of the piston rod is provided with a pressure block;