When the automated transfer machine is started, the current of the motor will be 5-6 times higher than the rated value, which will not only affect the service life of the motor but also consume more electricity. In the design of the system, there will be some margin in the motor selection, the speed of the motor is fixed, but in the actual use of the process, sometimes to run at a lower or higher speed, so it is necessary to carry out frequency conversion transformation. The inverter can realize the soft start of the motor, achieve the purpose of energy-saving speed regulation by changing the input voltage frequency of the equipment, and provide the equipment with over-current, over-voltage, overload protection functions.

CNC transformation of ordinary lathe is divided into new machine transformation and old machine transformation, new machine transformation is the user to buy ordinary lathe or ordinary optical machine (refers to only with headstock and vertical and horizontal guide rail lathe), transformation manufacturers according to their requirements for CNC transformation. The old machine transformation means that the user will have used the ordinary lathe or automated transfer machine to renovate and NC transformation. The old machine transformation includes overhaul lathe transformation and user old machine parts transformation. This paper discusses the quality control method, emphasis on control point and inspection process of automated transfer machine in mechanical aspect.

Since automated transfer machine processing is a job with high precision, and its processing procedures are concentrated and the number of parts clamping is less, higher requirements are put forward for the automated transfer machine used. The following wechat castor small series to introduce you to the selection of CNC machine tools, should consider the following aspects of the problem:

1, the type, specifications and accuracy level of automated transfer machine should be able to meet the requirements of cnc lathe processing.

2, high precision. In order to meet the requirements of high precision and automatic tool change in automated transfer machine processing, the tool must have high precision.

3, high reliability. In order to ensure that no accidental tool damage and potential defects will occur in CNC machining and affect the smooth progress of machining, the tool and the accessories combined with it must have good reliability and strong adaptability.

4, high durability. The tool processed by automated transfer machine, whether in roughing or finishing, should have a higher durability than the tool used in ordinary machine tool processing, in order to minimize the number of replacement or repair and sharpening tools and knives, so as to improve the processing efficiency of CNC machine tools and ensure the processing quality.

5. Good chip breaking and chip removal performance. In cnc lathe processing, chip breaking and chip removal can not be processed manually in time like ordinary machine tool processing, chips are easy to wrap around the tool and workpiece, which will damage the tool and scratch the workpiece machined surface, and even hurt people and equipment accidents, affecting the processing quality and the safe operation of the machine tool, so the tool is required to have better chip breaking and chip removal performance.

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