Workshop type CMM:tell us about the safety measures for workpiece loading and unloading in CMM

21 May,2022

Workshop type CMM:safety measures for workpiece loading and unloading in CMM

When measuring workpieces with CMM,in order to ensure that the measurement results are correct and reliable without damaging the workbench,the following points should be noted when loading and unloading workpieces:

(1)Before placing the workpiece,please check the bearing capacity of the three coordinates.

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(2)The workpiece loading and unloading process shall ensure low speed and the safety of personnel,equipment and workpiece.

(3)Generally,it is not recommended to place large workpieces directly on the workbench,and support them with equal height cushion blocks as far as possible to facilitate workpiece alignment and prevent damage to the workbench.

(4)The workpieces with large quality generally need to be loaded and unloaded with tools,and the commonly used tools include various cranes,trusses and forklifts.

Workshop type CMM:How to correctly select the spherical diameter of the CMM measuring needle

The probe is the end part of the CMM system.It directly contacts with the workpiece,causing the probe mechanism to move.The generated signal is processed to obtain the measurement results.Therefore,the stiffness of the CMM probe and the sphericity of the ball are very important.

For contact detection,the correct CMM probe can ensure the accuracy and efficiency of measurement.For the probe,the probe with large ball should be selected as far as possible for measurement.

The probe with a large ball can increase the distance between the large diameter of the ball and the surface of the needle bar,thus reducing the probability of false triggering caused by probe collision.Because the surface finish of the workpiece to be measured directly affects the accuracy of the CMM measurement results,the larger the diameter of the measuring ball,the lower the requirements on the surface finish of the workpiece to be measured.

Workshop CMM:What are the main contents of CMM training?

In order to better serve users and become proficient in using CMM as soon as possible,CMM operators should receive special training before leaving the factory.Generally,the training time for primary courses is five working days,and that for courses is eight to ten working days.The main contents of CMM training are as follows:

1.Introduction to three coordinate system:including simple knowledge of circuit and gas path,introduction to probe system,and daily maintenance of the machine.

2.Overview of CMM software interface and precautions for using ACDMIS software lock.

3.Knowledge of CMM probe assembly and calibration.

4.Basic geometric elements(concept of radius compensation and workpiece coordinate system).

5.Establishment method of workpiece coordinate system(workpiece alignment).

6.Structure and relationship(theoretical elements and related elements).

7.Understand the shape error and position error.

8.Additional functions of measurement software package(special calculation,working environment setting,fuzzy recognition).

9.Tolerance setting and output,saving and printing measurement results(virtual printing).

10.Programming and program operation.

That's all for today.Thank you for watching.See you next time.

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