Accuracy Test of Metal Spinning Machine
Date: Jul,12 2021 View:
Accuracy Test of Metal Spinning Machine
1 Purpose and content of the accuracy test of metal spinning machine
The processing accuracy of metal spinning machine is an important index to measure the performance of the equipment. With the development of production in the relevant industrial sectors, the requirements for the processing accuracy of metal spinning machines are increasing, and the requirements for equipment accuracy are gradually increasing.
The machining accuracy of metal spinning machine is represented by the shape, size, form and position tolerance and surface roughness of the workpiece. There are many factors that affect its machining accuracy. In addition to the accuracy of the machine itself, there are also post-deformation due to load on the machine and spinning process system (static stiffness issues), vibration during spinning (vibration resistance issues), spinning deformation heat, machine wear, tool wear and other factors. Among the above factors, the accuracy of the machine itself is an important factor, which largely determines the machining accuracy that the machine can achieve.
The purpose of accuracy test of metal spinning machine is to understand the machining accuracy they can achieve through the experiment, analyze some of the main factors that affect the machining accuracy and its degree of influence, and explore measures to further improve the accuracy of the machine.
The content of the accuracy test of metal spinning machine includes: geometric accuracy test, motion accuracy test, rotary turret indexing, positioning accuracy test, transmission accuracy test and machining accuracy test.
2 Accuracy Inspection of Metal Spinning Machine
The accuracy inspection of metal spinning machine includes the geometric accuracy, movement accuracy, positioning accuracy, transmission accuracy and work accuracy inspection.
1) According to the geometric accuracy specified in the accuracy standard of metal spinning machine, it must be carried out before and after the load test. The geometric accuracy items of the temperature-related heating spinning machine should be inspected when the stable temperature is reached. However, in order to meet the needs of users, it is best to pass both cold and hot inspections.
2) Check the motion accuracy of metal spinning machine, that is, check its geometric accuracy in motion, such as the rotation accuracy of the spindle.
3) For some spinning machines with precise indexing and positioning, such as multi-rollers turret type rotary frame, the positioning accuracy should be checked.
4) For some metal spinning machines with inline drive chains, the transmission accuracy of the inline drive chains should be tested.
5) Check the working accuracy of metal spinning machine after the load test. For the special spinning machine, the required procedures are completed on it, and the shape, size, accuracy and surface quality of the test spinning part are inspected. For general-purpose spinning machines, several typical spinning parts suitable for this type of machine should be specified for inspection of work accuracy. When working with hydraulic profiling systems, numerical control systems and other automatic control systems, the working accuracy of the automatic control system that determines the relative position or relative gap or relative motion trajectory of the rotary wheel and the core mold (workpiece) should be tested. And check the accuracy of a batch of test pieces processed by metal spinning machine with the automatic control system.
