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 Wysłany: Pią 23:08, 17 Gru 2010 Temat postu: ugg prezzo Circumscribed circle method used to eli |
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Circumscribed circle method used to eliminate eccentric
Methods. Is introduced to everyone. Find a piece of similar size and degree of disk and hard texture of thin transparent plastic film (or good quality tracing paper can be), with a compass draw some concentric circles,[link widoczny dla zalogowanych], the radius of every 3ram asked to draw a circle, and the painting line to uniform thickness. Universal tool microscope and then installed the round table, adjust the main boom microscope to identify the dial center of the \ and \ Measurements, you can choose the face gear as the locating datum, with the gear in question as a measurement reference location hole, the circular gear on the table. Because the circular dial has had a lot of concentric circles of different radius, so you can quickly locate the hole gear or be coincident with these concentric circles, roughly put away location. Then adjust the master arm to make in the field of microscopy can clearly see the gears in the positioning holes of images. Turn the hand wheel horizontal and vertical microscope, the eyepiece of the meter in the middle of a word line and the positioning holes of the images in the meter tangent to the center of the word line as shown, and then turn the dial, from meters to find the circumference of the word line of the nearest position, gently push gear to the most distant half of the Department, the sub-hand wheel tangent with them, continue to turn the dial, repeat the process until the entire circumference with the line tangent to the m word. 6 Space (shaded gear. Boron positioning holes in the gear position can not be the ideal round circle, that is not possible to locate each point of the circle have been m word line center. So long as the minimum to find inclusive Positioning word line tangent to the circumcircle and the meter can. so the center gear and the rotary center dial the basic coincidence,[link widoczny dla zalogowanych], and that the eccentricity of the measurement results greatly reduced. In this process should be noted that: .1, as with the image method, so the positioning holes on the gear, the tooth surface to go to burr and clean, there are cases of the same two angles to try to adjust the gear center and the center of the dial rotation overlap,[link widoczny dla zalogowanych], the action to light,[link widoczny dla zalogowanych], if the auxiliary to a piece of plasticine to fix, then adjust it more convenient. ( Author: Chang,[link widoczny dla zalogowanych], I1 trial of Measurement Island Institute of Technology) * 2】 *, a
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