1. Install the workpiece and turn on the power
1) Non-revolving workpieces
The swivel type workpiece is generally clamped on the square worktable located in the middle of the boat-shaped worktable. Before installation, the two adjustment knobs in front should be loosened to adjust the position of the worktable on the boat-shaped worktable. Smaller pieces can be held in place with plasticine. Larger workpieces can be fixed with a pressure plate, the middle pressure plate can be installed in the T-shaped groove of the pressure plate seat, and the pressure plate seat can be moved back and forth to adapt to different sizes of workpieces.
2) Rotary body workpiece with center hole
The test piece can be clamped by the thimble seat. The instrument is equipped with each pair of inner thimble, outer thimble and big head thimble. Select the corresponding thimble according to the shape of the workpiece. When installing the workpiece, first loosen the plum blossom handles of the left and right thimble seats, and adjust the left and right according to the length of the workpiece. The distance between the thimble seats, then lock the plum blossom handle, move the workpiece between the two thimbles, push the thimble rod inwards until the left and right thimbles are inserted into the thimble holes, and then lock the small plum blossom handle.
3) Workpieces with too large ruler or without center hole
Workpieces that are too large or do not have a center hole can be installed with a V-shaped bracket. Before installing the V-shaped bracket, the left and right thimble seats should be removed from the boat-shaped workbench, and then the left and right V-shaped brackets should be installed on the original thimble seat position. Place the workpiece flat on the V-shaped frame, and use the height, front and rear adjustment knobs to correct the axis of the I piece to be parallel.
2. Adjust the optical system
1) Choose to install the eyepiece
Commonly used is the medium magnification objective lens (3x) objective lens. Generally speaking, increasing the objective lens magnification can improve the image resolution, but for rough workpieces, the high magnification objective lens will magnify its defects, which will affect the image acquisition accuracy. Use a low-magnification objective lens as far as possible.
2) Adjust the field of view and focal length
Move the boat-shaped table and the horizontal bracket so that the measured part is located under the microscope, turn on the laser to make the laser spot align with the measured part, turn the coarse focus handwheel to minimize the laser spot, and then switch to the CCD by pushing the pull rod, and turn it on. Illumination light source, the image of the workpiece appears in the display screen, and the focus is adjusted according to the clarity of the image until the image is the clearest.
3. Start measuring
Open the image processing two-dimensional measurement software to complete various lengths, threads, gears and other measurement work. For specific measurement methods, see specific practical cases.
4. The measurement is completed
After the measurement, remove the parts and equipment accessories, put them in the accessory box, and do a good job in cleaning the instrument.
