Part Programming for Drilling Machine Operation.pptx

part programming for drilling machine operation

1. Part Programming for Drilling Machine Operation By: P.PRASANTH (211231101608) 3 r d year, Robotics and Automation

2. Part Programming for Drilling Machine Operation: Part programming for drilling machine operation involves creating a set of instructions that guide the drilling machine to perform specific drilling operations on a work piece. These instructions are written in a programming language that the machine can understand and execute. The programming language used for drilling machine operations is typically G-code, which is a standardized language used in computer numerical control(CNC) machines.

3. S teps involved in part programming for drilling machine operation: Work piece design Coordinate system Tool selection Writing the program Program structure Simulation and verification Execution

4. Work piece design: Before writing the part program, it is essential to have a clear understanding of the work piece design and the specific drilling operations required. This includes knowing the hole locations, dimensions, depths, any other relevant specifications. 2. Coordinate system: The drilling machine operates with in a coordinate system that establishes the reference points for the drilling operations. The most common coordinate system used in Cartesian coordinates ( x,y,and z axes). The origin point (0,0,0) is typically defined as the starting position of the machine. 3. Tool selection: Choose the appropriate drill bit or tool for the drilling operation based on the work piece requirements. Consider factors such as hole size, material type, and drilling speed.

5. 4. Writing the program: The G-code program is written using a text editor or specialized software. The program consists of a series of commands that specify the machine movements, tool changes, feed rates, and other parameters. Here are some common g-code commands used in drilling operations: Rapid move (G0/G00) Moves the machine rapidly to a specified position without cutting or drilling. It is used for positioning the machine at the start or end points of the drilling operations. Linear interpolation (G1/G01) Performs a straight-line movement from the current position to a specified point. This command is used for actual drilling, where the tool penetrates the workpiece to create a hole.

6. Spindle speed (S) Sets the rotational speed of the drilling machine’s spindle, which determines the drilling speed. It is specified in revolutions per minute (RPM) Feed rate (F) Determines the rate at which the tool moves along the work piece during drilling. It is specified in units per minute (mm/min or inches per minute) Coolant control (M08/M09) Control the coolant system to provide lubrication and cooling during the drilling operation. Tool change (M06) Specifies a tool change, allowing the machine to switch to a different drill bit or tool if multiple drilling operations are required.

7. 5. Program structure: A typical part program for drilling operations follows a specific structure. It begins with initialization commands that set up the machine parameters, such as spindle speed and coolant control. Next, the program includes positioning commands to move the machine to the desired drilling locations. The drilling operations are then specified using the appropriate G-code commands, such as linear interpolation for drilling holes. Finally, the program ends with termination commands, which may include stopping the spindle or coolant. 6. Simulation and verification : It is crucial to simulate and verify the part program before executing it on the actual drilling machine. This helps identify any errors or collisions that may occur during the operation. Simulation software or CNC machines simulators can be used to visualize the tool paths and ensure that the drilling operations will be performed accurately.

8. 7. Execution : Once the part program has been verified, it can be loaded on to the drilling machine’s controller. The machine will execute the program, following the specified instructions to perform the drilling operations on the work piece. Operators should closely monitor the operation to ensure everything is proceeding as expected. By following these steps, part programming for drilling machine operation can be carried out effectively, enabling precise and efficient drilling operations on work pieces. Drilling machine operation: Drilling Reaming Boring Counter boring Counter sinking Spot facing Tapping

9. BORING COUNTER BORING COUNTER SINKING SPOT FACING TAPPING

10. EXAMPLE: PROGRAM-1: To prepare a part program as per given sketch with given dimensions and show the simulation using CADEM software.

11. SIMULATION MODEL:

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