Programming steps for CNC gear hobbing machine

Writer： admin Time：2024-10-13 11:48:08 Browse：49℃

Programming steps for CNC gear hobbing machine:

1. Preparation of workpieces and cutting tools: Firstly, it is necessary to adjust the stroke length and position of the cutting tool according to the tooth width of the workpiece and the installation position of the cutting tool. This usually involves calculations and adjustments to ensure that the tool can cut the workpiece correctly.

2. Set the number of strokes and motor frequency: Based on the average cutting speed of the workpiece and the stroke length of the gear hobbing tool, 

calculate the reciprocating stroke of the tool shaft and set the frequency of the main motor. These settings affect the speed and efficiency of processing.

3. Choose a split tooth gear: Based on the balance formula of the split tooth rolling motion and the existing number of gear teeth, select the appropriate installation 

method for the split tooth gear and the number of teeth for each gear. This step is crucial for ensuring machining accuracy and balance.

4. Set the circumferential feed rate: Determine the circumferential feed rate based on the hardness, modulus size, and desired accuracy and roughness of the workpiece material. 

This parameter directly affects the quality and smoothness of the processed surface.

5. Tool adjustment: Depending on the actual situation, choose the radial or diagonal tool adjustment method to ensure that the tool can correctly follow the shape of the workpiece for cutting during the machining process.

Notes to be taken into account during the programming process

Pre debugging inspection: Ensure that the positioning end face runout of the tool holder, tool boss, core shaft, and fixture meet the machining requirements.

Adjustment of the angle between the tool holder and the tool shaft: Adjust the angle between the tool holder and the tool shaft according to the needs of the processed product.

Calculation and installation of hanging wheels: Calculate the toothed hanging wheels, differential hanging wheels, and cutting hanging wheels based on product parameters, and install and lock them correctly.

Preparation before startup: Ensure that the rolling cutter and workpiece are tightly pressed and locked, and the rolling cutter is in a safe position.

Operation after startup: Lock the axial initial feed position stopper of the rolling cutter, manually feed radially, and perform the initial feed trial cutting after the rolling cutter contacts the outer diameter of the workpiece.

Monitoring during the processing: Pay attention to the operation of the machine at all times, inspect the product in a timely manner, and correct any problems found in a timely manner.

Safety precautions: Protective equipment must be worn during operation to avoid collision between the rolling cutter and the workpiece, and to prevent injury caused by rolling cutter breakage and other reasons.