Double disc grinding machine: various grinding methods to meet different processing needs
Double disc grinding machine is a common grinding equipment, mainly used to process two parallel planes of the workpiece. According to different grinding methods and equipment structures, double disc grinding machines can be divided into many types. The following are the main grinding methods of the double disc grinder:
1. Swing arm cut-in grinding: This method uses tooling for swing arm cut-in grinding, and the workpiece is ground between CBN grinding wheels. The swinging arm plunge-type double disc grinding machine has the lowest processing efficiency among the three grinding feed methods, but the highest processing accuracy. It is suitable for workpiece with large processing allowance and very high precision requirements, the general processing allowance is between 0.15mm-0.25mm, and the CPK value is required to reach 1.33 or more.
2. Rotary through grinding: This method is suitable for the processing of small and medium-sized workpieces, the rotary feed plate itself has the function of automatic feeding and unloading, so it is suitable for the processing of bearing rings, blades and other workpieces. The processing accuracy and processing efficiency of the rotary penetration double-end grinding machine are relatively high, and the processing accuracy is generally between 0.003mm-0.005mm.
3. Through grinding: This is a continuous processing method, the workpiece through the feed belt into the two CBN grinding wheels for continuous grinding. Through the double disc grinding machine processing efficiency is the highest, but the processing accuracy is relatively low, the general processing accuracy is controlled within 0.01mm.
In addition to the above three main grinding methods, the double end grinding machine can also be divided into vertical and horizontal two types according to the different equipment. The vertical double disc grinding machine uses the inner holes of two grinding wheels to grind the two parallel surfaces of the workpiece together, which is suitable for mass production of rolling bearing rings, engine pistons and other parts. The horizontal double disc grinding machine is suitable for grinding large workpieces, with a larger table and wheel size, can meet the processing needs of different workpieces.
When choosing a grinding machine, it is necessary to comprehensively consider the material, size, accuracy requirements and production efficiency of the workpiece. Different types of these have different characteristics and scope of application, so it is necessary to choose according to the actual situation. At the same time, when using a double disc grinding machine for processing, it is also necessary to pay attention to operating specifications and safety matters to ensure processing quality and personal safety.
In short, the double disc grinding machine is a commonly used grinding equipment, its grinding methods include swing arm cut, rotary through and through. Different types of double disc grinding machines have different characteristics and scope of application, and need to be selected and used according to the actual situation.
