PEMBAGIAN TIDAK LANGSUNG DENGAN KEPALA PEMBAGI || CARA MEMBUAT RODA GIGI LURUS PADA FRAIS HORISONTAL

Introduction

This tutorial provides a step-by-step guide on using a dividing head for indirect division in the manufacturing of straight gears on a horizontal milling machine. Understanding this process is essential for precision engineering and gear fabrication.

Step 1: Setting Up the Dividing Head

• Prepare the Equipment: Ensure you have a dividing head, a horizontal milling machine, and the material for the gear.
• Install the Dividing Head: Secure the dividing head onto the milling machine table, ensuring it is firmly attached and aligned correctly.
• Adjust the Angle: Set the dividing head to the desired angle for the gear teeth. This is typically determined by the number of teeth you want on the gear.

Step 2: Calculating the Gear Parameters

• Determine Gear Specifications: Identify the number of teeth (N) you need for the gear and the pitch diameter.
• Calculate Divisions: Use the formula to find the required divisions:
  • Total divisions = (Number of teeth) x (Teeth per revolution)
• Set the Dividing Plate: Choose the appropriate dividing plate that corresponds to your calculated divisions. This plate has predefined holes for accurate positioning.

Step 3: Positioning the Workpiece

• Mount the Workpiece: Secure the workpiece onto the dividing head spindle. Ensure it is tight and positioned correctly.
• Align the Workpiece: Use a dial indicator to check alignment and make necessary adjustments for precision.

Step 4: Milling the Gear Teeth

• Select the Cutter: Choose a suitable milling cutter that matches the gear specifications.
• Set the Feed Rate: Adjust the feed rate on the milling machine for optimal cutting without overloading the tool.
• Start Milling: Begin the milling process. Gradually move the workpiece based on the divisions set on the dividing head.
• Monitor the Process: Continuously check the gear teeth for uniformity and accuracy throughout the milling.

Step 5: Finishing Touches

• Deburring: After milling, remove any burrs or sharp edges using a deburring tool or file.
• Inspection: Measure the finished gear teeth to ensure they meet the required specifications and tolerances.

Conclusion

In this tutorial, we covered the essential steps for using a dividing head to create straight gears on a horizontal milling machine. Key points include setting up the dividing head, calculating gear parameters, and ensuring precision during the milling process. For further practice, consider experimenting with different gear sizes and pitches to enhance your skills.