Analysis of the working principle of gear hobbing machine

Writer： admin Time：2024-07-21 10:29:31 Browse：179℃

1、 Basic structure of gear hobbing machine

Gear hobbing machine is a mechanical equipment specifically used for processing various toothed parts such as gears, universal joints, and racks. 

The basic structure of a gear hobbing machine includes the bed, worktable, worktable moving mechanism, gear hobbing tool holder, and spindle box.

2、 The main working mode of the gear hobbing machine

The work of a gear hobbing machine mainly consists of three steps: positioning, inserting the blade, and exiting. The specific steps are as follows:

1. Positioning: Place the gear or rack on the hobbing machine worktable and quickly move the workpiece to the desired position through the worktable moving mechanism.

2. Insertion tool: Start the gear hobbing machine, and the gear hobbing tool holder begins to rotate. At the same time,

 insert the gear hobbing tool one by one into the tooth grooves on the gear to be machined through the axial moving mechanism, completing the machining of the gear tooth grooves.

3. Exit: After the gear hobbing tool completes the machining of the gear slot, exit the gear through the axial movement mechanism and wait for the next machining cycle.

3、 Precision control of gear hobbing machine

The machining accuracy of the gear hobbing machine directly affects the quality and durability of the gears, 

so strict control is required during the machining process. The commonly used precision control methods mainly include the following three types:

1. Processing parameter control method: By adjusting parameters such as the movement speed of the hobbing machine worktable,

   the rotation speed of the hobbing tool, and the feed rate of the hobbing tool, the gear accuracy during the processing is controlled.

2. Real time monitoring method for machining: Sensors and other equipment are used to monitor the machining process in real time, 

detect and correct machining errors in a timely manner, and ensure machining accuracy.

3. Post processing inspection method: By using gear measuring instruments for detection and measurement, the gears that meet the requirements

 after processing are selected, thereby achieving the goal of precision control in machining.

The above is a brief introduction to the working principle and machining accuracy control method of gear hobbing machine, 

in order to provide readers with a deeper understanding of the basic structure and working mode of gear hobbing machine, 

thereby improving the efficiency and quality of gear hobbing machine machining. It is suitable for mechanical engineers and processing manufacturers to refer to.