Working principle of fully automatic CNC bearing outer ring groove grinder

The fully automatic CNC bearing outer ring groove grinder is a high-precision and high-efficiency production machine tool. Its working principle integrates mechanical transmission, CNC technology, and precision grinding technology, aiming to machine the bearing outer ring groove to precise size and shape. The following is a detailed introduction to its working principle:

1. Machine tool structure composition

The fully automatic CNC bearing outer ring groove grinder is mainly composed of the following key parts:

Spindle system: responsible for driving the workpiece (bearing outer ring) to rotate at high speed, providing necessary rotational power for the grinding process. Feed system: controls the feed motion of the grinding tool (grinding wheel), including lateral feed and longitudinal feed, to achieve precise control of the grinding amount. Grinding head system: equipped with a grinding wheel, which is driven by the high-speed rotation of the spindle to perform grinding processing. The shape and size of the grinding wheel are selected according to the processing requirements to ensure that the groove shape meets the design requirements.

Control system: Advanced numerical control systems (such as PLC or CNC systems) are used to achieve automated control and precise operation of the machine tool.

. Through the touch screen or electrical control panel, operators can easily adjust various parameters of the machine tool, such as grinding speed, feed rate, grinding depth, etc.

II. Detailed explanation of working principle

Workpiece installation and positioning:

Install the outer ring of the bearing to be machined on the worktable of the machine tool, and use electromagnetic centerless fixtures or other positioning devices for stable clamping to ensure that the workpiece will not move or vibrate during the grinding process.

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Parameter setting and program input:

According to the machining requirements, input grinding parameters in the CNC system, such as grinding speed, feed rate, grinding depth, etc. Input or call a pre programmed grinding program that includes all actions and parameter settings during the grinding process.

Grinding process start:

Start the machine tool, and the spindle system begins to drive the workpiece to rotate.

. At the same time, the feed system controls the grinding head system (grinding wheel) to perform horizontal and vertical feed movements according to the instructions of the CNC system, and starts grinding processing.

Grinding process:

The grinding wheel rotates at high speed and comes into contact with the surface of the workpiece. Through grinding, excess material on the surface of the workpiece is removed, gradually forming a channel shape that meets the design requirements.

. During the grinding process, the CNC system monitors the grinding status in real-time and automatically adjusts according to preset parameters to ensure grinding accuracy and quality.

Grinding completion and workpiece inspection:

When the grinding reaches the preset depth or size, the CNC system automatically stops the grinding process.

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Use gauges or other inspection tools to inspect the processed workpiece to ensure that its dimensional accuracy, shape accuracy, and surface roughness meet the design requirements.

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III. Key Technologies and Features

High precision cross cross guide rail and servo motor drive: ensuring precise movement of workpiece feed and grinding wheel drag plate, improving grinding accuracy.

. High precision electric spindle and variable frequency speed regulation: The grinding wheel shaft adopts a high-precision electric spindle and variable frequency speed regulation, further improving the grinding accuracy and stability.

Electromagnetic centerless fixture support positioning: By remotely controlling the demagnetization controller to adjust the magnetic force, stable clamping and rapid loading and unloading of workpieces can be achieved, improving production efficiency.

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Single point diamond pen lifting and trimming device: servo driven interpolation trimming ensures that the grinding wheel always remains sharp, improving grinding efficiency and quality.

. Energy saving and environmentally friendly design: Some models have the characteristics of energy saving, cost reduction, and emission reduction, making them ideal environmentally friendly machine tools.