What are the general procedures for measuring with tool microscopes?
1. Cartesian coordinate measurement:
The measurement can only be carried out when the Cartesian coordinate direction of the measured object is consistent with the direction of movement of the cross shaped worktable. When using Cartesian coordinate measurement, the Cartesian coordinate values can be directly read by the movement of the cross moving worktable. For large tool microscopes, the image on the aiming hole Cartesian coordinate measurement can be connected to the observation eye for correct measurement. When calibrating the Cartesian coordinate direction of the measured object and the cross moving worktable, it is very convenient to use an assembled rotating worktable installed on the large tool microscope. For small tool microscopes, only the rotating worktable accessory is needed.
2. Angle measurement:
The measurement can be made using a rotating workbench or angle observation lens. Generally speaking, the accuracy of angle observation lenses is better.
3. Height measurement:
Although a small tool microscope cannot measure height, if a silver measuring instrument is mounted on the upper end of a support column and then moved up and down using the microscope, the height can be measured. However, due to factors such as focal depth, pillar inclination, and errors between silver measurement and optical axis, it is quite difficult to accurately determine.
4. Aperture measurement:
Generally, angle observation lenses are used for measurement, but large tool microscopes can use overlapping image observation lenses or optical detectors, which use overlapping image lenses to generate two overlapping images, and then do the same on the opposite side. Therefore, the inner diameter of the hole can be displayed by the amount of movement. If an optical detector is used, first install it on a 3x object lens, align it with the direction of movement of the detector and worktable, and then adjust the overlap line inside the observation mirror to be parallel to the crosshair of the observation lens, so that the detector contacts the hole surface. *Afterwards, use the feed on the Y-axis to correct the reverse movement of the overlapping line, and use the X-axis feed to clamp the ten sub lines of the observation lens between the overlapping lines, in order to read the measured values on the X-axis. The same applies to the holes on the opposite side, so the inner diameter of the hole can be obtained by adding the difference in readings to the diameter of the probe.
What is the measuring object of the tool microscope?
1. Measure the shape of various molded parts such as templates, template cutting tools, template milling cutters, dies, and cams.
2. Measure the pitch, diameter, pitch, and half angle of the external thread (thread plug gauge, screw, worm, etc.).
3. Measure the lead, tooth profile, and tooth angle of the gear rolling cutter.
4. Measure the position of holes on circuit boards, drill dies, or orifice plates, as well as the symmetry of key slots and other positional errors.
