Device and method for checking and repairing smoothness of inner part of aluminum casting gearbox shell

Abstract

The invention relates to the field of gearbox shell machining, in particular to a device and method for checking and repairing the smoothness of the inner part of an aluminum casting gearbox shell. The device comprises pedestals and a bottom plate, and further comprises a working plate, a controller, a sliding mechanism, an overhauling mechanism and a supporting mechanism, wherein the sliding mechanism is arranged at the top of the working plate and is fixedly connected with the working plate, the overhauling mechanism comprises a sliding table, a driving assembly, a first-stage lifting assembly, a second-stage lifting assembly, an image recognition module, a repairing module, two sets of adjusting assemblies and two sets of sliding assemblies, and the supporting mechanism comprises a fixing assembly and four supporting columns. According to the device and method, the aluminum casting gearbox shell is moved to a placing groove in the top of a carrying table for positioning and fixing,the controller is operated to achieve the detection purpose, and an optical signal is converted into an electric signal by an image recognition technology to be transmitted to the controller, so thatthe inner part of the aluminum casting gearbox shell is checked and repaired; and the device is accurate, controllable, safe and reliable, and the machining efficiency of the aluminum casting gearboxshell is greatly improved.

Description

technical field [0001] The invention relates to the field of gearbox casing processing, in particular to a device and method for inspecting and repairing the inner smoothness of an aluminum casting gearbox casing. Background technique [0002] The gearbox is a mechanism used to change the speed and torque from the engine. It can fix or step by step change the transmission ratio of the output shaft and the input shaft. We usually drive a car equipped with a gearbox. It is an important part of the car and is also a measure of its One of the important indicators of performance. [0003] The gearbox shell is generally made of die-casting aluminum alloy and die-casted by a special mold. The shape is irregular and complex. The gearbox shell is mainly gray cast iron in the early stage. It is easy to form, good in shock absorption, and low in cost. With the improvement of driving comfort requirements and the maturity of lightweight technology, the gearbox housing part of the car is...

AI Technical Summary

Problems solved by technology

[0008] The structure of the above two patent cases has the following deficiencies: the first practical summary is to position the gearbox casing by setting the positioning shaft on the workbench to insert and position the gearbox casing, to prevent its shaking and deflection, and to ensure the detection Accuracy, and then install the dial gauge by setting the threaded rod, screw sleeve, bearing, and connecting plate on the positioning shaft, and use the lock nut to lock the height of the dial gauge to meet the requirements of dial gauge rotation and radial movement , so as to facilitate the multi-point measurement of the dial gauge. The external structure of some gearbox housings is simpler than the internal structure, but the external structure of most gearbox housings is complex and irregular, and it is difficult to use the radial movement of the dial gauge to measure it. Flatness has great limitations; in the second invention, a laser transmitter and a sandblasting gun are installed on the other side of the CCD camera through the guide. When the second CCD camera avoids the reversing table, then the reversing table rotates, and the reversing table There is a servo motor at the bottom, which drives the reversing table to rotate at a slow speed. The continuous movement of the gearbox housing will cause its position to be inaccurate. The sandblasting gun is easy to produce a small deviation for the command processing after the image is recognized.

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