International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 11 Issue: 05 | May 2024
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p-ISSN: 2395-0072
Design and Development of a Special Purpose Machine with PLC Control for Face Milling of Connecting Rod Abhijeet Sambhaji Shinde Department of Mechanical Engineering Ashokrao Mane Group of Institutions Vathar Tarff Vadgaon, Kolhapur, MAH(INDIA) ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - Special purpose machines are extremely
frequently employed in conjunction with a dedicated programmable logic controller to provide commands to the acting elements occasionally. Actuating elements include various special motors, such as servo and stepper motors. After all of these efforts, a very high level of productivity was achieved. Three to ten times as much productivity is achievable. Strict quality control must be applied to the automatic machine's input in order to reap the benefits of these highly specialized machines.
productive machines that are used to create the same part in huge quantities on a daily basis. They have fixtures and tooling that are specifically developed for them. A carefully selected collection of limit switches, sensors, logic controllers, automatic job clamping, etc., form the foundation of an SPM. SPM only finishes the designated tasks for which it is designed. Consequently, the SPM grinds the connecting rod's face simultaneously on both sides. This will ultimately lead to a decrease in the long and energy-intensive cycle time of the existing standard milling machine. unit is made and planned. People can make mistakes since the conventional milling machine is manually operated. To address this problem, the SPM will be interfaced with the PLC, which will handle the entire procedure. The design and development of a discrete special purpose machine component is the aim of this project.
2. FIXTURE UNIT
KeyWords: Connecting rod, Face Milling, Spindle, Fixture Unit, PLC Coding.
1.INTRODUCTION In order to increase productivity, Special Purpose Machines (SPM) are essential in the manufacturing sector. The majority of the operations are carried out differently for the small and big ends of the connecting rod. Previous research has considered two different methods for two different purposes. An attempt is made to consolidate activities in this dissertation work in order to increase productivity. This particular equipment is designed to simultaneously bore two work pieces. Time will be saved, and production will rise as well. Because the spindle shaft in this machine is a crucial component, a static and modal analysis of the spindle shaft will be performed to determine the distribution of stress.
Fig No.1 CAD model of Fixture Unit A. Component side resting pad It is composed of O.H.N.S. (Oil Hardening Non-Shrinking Die steel), which is mostly utilized for heavily stressed machine parts with high strength and core toughness that are meant to be cemented. Particular care is taken while choosing the material because one side of the connecting rod will rely on it.
The Automatic and Special Purpose Machines (SPM) are made to run continuously for 24 hours a day with the least amount of supervision. Generally speaking, special purpose machines are product-specific and must be developed and designed to meet each unique requirement. Using Change Tooling Concept, it may occasionally be possible to cater to jobs with similar features but different dimensions. These Special Purpose Machines (SPM) are either cam-operated, employ hydraulic and pneumatic elements as actuators, or combine all three. Positional sensors and transducers are
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B. Component Resting Piece The primary purpose of the component resting piece is to provide appropriate support for the connecting rod during the face milling process. The material used to make it is WPS (Die steel 1.2080/D3), which has good hardenability, resistance to plastic deformation, wear resistance, and compressive strength.
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