Introduction to Routine Inspection Before Using a Large Tool Microscope
Strict inspection and debugging have been carried out at every stage of instrument production and during factory inspections. However, due to various factors such as transportation, vibration, temperature, and environmental changes, the performance of the instrument may vary. It is necessary to conduct necessary inspections and debugging before use. The main items of instrument inspection are:
1. The installation and use of instruments should be checked for the surrounding environment, including whether the power supply, voltage, light bulb source, grounding wire, etc. are correct and firm, and should meet the requirements.
2. Inspection of the motion performance of the main components of the instrument: the instrument worktable, longitudinal and transverse slide rails, micrometer, microscope arm guide rail lifting, angle measuring disc rotation and other components must be visually observed and manually tested to confirm that the structural installation is reliable, the position is accurate, the operating performance should be comfortable and intact, and there should be no looseness, blockage or sudden jumping phenomenon.
3. Inspection of angle measuring eyepiece
a. Inspection of the zero position of the angle measuring eyepiece: When the angle measuring microscope is in the zero position, the horizontal line of the reticle of the angle measuring eyepiece should be parallel to the direction of movement of the X-axis slider, and the deviation should not exceed 6 minutes.
Inspection method: Place the cutting edge ruler on the instrument workbench, lift the microscope, and present a clear cutting edge image in the field of view of the eyepiece. Adjust the workbench so that the image of the long edge of the right angled blade is parallel to the direction of the X-axis sliding plate movement. Rotate the rice shaped dividing plate so that its horizontal line is parallel to the image of the long edge of the right angled blade. Observe whether the angle dial of the microscope shows zero and read out its deviation. The deviation should not exceed 6 points.
b. Check the coincidence between the intersection point of the crosshairs of the angle measuring eyepiece and its rotation center.
Inspection method: Place a cross reticle on the instrument workbench, adjust the instrument so that the cross line image of the reticle is clearly presented on the angle measuring eyepiece meter reticle, and make the horizontal line image of the cross reticle parallel to the horizontal line of the meter reticle. Move the vertical and horizontal sliding plates so that the intersection points of the two cross lines coincide, and then rotate any position of the meter reticle to observe the coincidence of the two cross intersection points. There should be no significant change in coincidence.
4. Inspection of the perpendicularity between the microscope arm and the worktable along the column guide rail direction
