earticle

영어

Sensors play a major role in an automated manufacturing system. They are used for getting information from manufacturing operations and processes that are being performed. They are also used for making decisions about the operations being conducted. The purpose of sensors is to inspect and monitor the work-in-progress interface with the manufacturing equipment. In manufacturing industries the multi-operation machine like VMC (Vertical machining center) and HMC (Horizontal machining center) are the major part. It is used to improve the high productivity, high quality and high accuracy of the product. But the CNC machine has some drawbacks like high initial investment, high maintenance and skilled labor wants to operate the machine. To overcome these problems, this paper proposes a low cost automatic multi-operation machine. It performs basic machining operations like drilling, tapping and boring using low cost color sensors (LDR and LEDs). In this system color sensors are the main part to determine the machining operations based on the usage of color LEDs. If LDR detects the color LED the machining operation will take places, the machining operation and job clamping operation are achieved by pneumatic system. All these operations are carried out in a sequence by pre-programming the Programmable Logic Controller.