CMM Operating Procedures and Environment

The precision of a Coordinate Measuring Machine (CMM) largely depends on its operators. Well-trained CMM measuring personnel can ensure the accuracy of the machine and prolong its lifespan.

Before operating the CMM, it is important for the operator to receive professional training and fully understand the equipment’s performance.

The proper use and maintenance of the CMM must follow the specified guidelines.

Installation requirements for CMMs.

The equipment should be installed indoors, away from direct sunlight, rain, and other sources of moisture.

It should be located in an environment free of corrosive gases, flammable gases, oil vapors, particulates, moisture, and dust.

The location should allow for easy installation, maintenance, inspection, and repair. The machine should be positioned at least 60cm away from the wall.

The floor should be smooth and free of vibrations. Avoid installing the machine near heavy machinery or equipment that vibrates during operation.

The external power supply should be 220V±10V, 50±1Hz, with a stable voltage and current, and must be properly grounded.

The user of the coordinate measuring machine should pay attention to the environment:

Operating Environment: The temperature should be maintained at a constant level of 20 ± 2°C, with a humidity range of 55% to 75%. The temperature gradient should be 1°C per meter, and the temperature should not change more than 1°C per hour.

Working Air Pressure: The air pressure should be between 0.45MPa to 0.7Mpa, with larger machines requiring higher air pressure. Please refer to the relevant documents for specific requirements.

Note: The air pressure should not be adjusted arbitrarily. If there is any abnormality, please contact the manufacturer.

Air Consumption: The air consumption should be between 120L/min to 180L/min, with larger machines requiring higher air consumption. Please refer to the relevant documents for specific requirements.

This information should be used to determine the size of the air compressor.

The above is a summary of the CMM operating procedures and environmental considerations for your reference.

Maintenance of CMMs and Grating ruler

Many customers are unaware of the maintenance of the core components of a Coordinate Measuring Machine (CMM) and only know how to use the machine for measuring.

If the CMM is not regularly maintained, it is prone to inaccurate readings, which can have a negative impact on measurements.

Experts emphasize that CMM users should also be familiar with the basic knowledge of the scale, as it is the central precision component of the CMM and directly affects the measurement results.

Therefore, it is essential to pay attention to maintenance.

CMM experts suggest using degreased cotton balls dipped in anhydrous alcohol for cleaning the CMM scale. The cotton ball should be held and wiped from one end of the scale to the other, followed by wiping with a clean cotton ball dipped in alcohol.

Note: The cotton ball should not be reused and wiping should be done in one direction only. Do not touch the reading head during wiping to avoid cotton fibers sticking to the scale.

It is important to remember that excessive cleaning of the scale is not recommended. A quarterly cleaning test is sufficient.

Composition of an image measuring device

A qualified image measuring machine operator should have a good understanding of the machine’s composition.

By understanding the composition of the image measuring machine, the operator can better use and maintain the machine.

Here is a brief overview of the composition of an image measuring machine:

An image measuring machine is typically composed of several main components:

  • Mechanical Body: This component is the main structure of the image measuring machine, consisting of guide rails and a transmission mechanism.
  • Scale System: The scale system is the core component that determines the accuracy of the image measuring machine. It is usually composed of a grating ruler.
  • Software System: This component is the heart of the measurement process.
  • Control System: This component controls the operation of the machine.

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