What do the 3 markings on this end cover opening diagram mean?
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As shown in the figure below, what do the 3 markings on this head opening diagram mean?
It’s recommended to take a look at the instructions corresponding to the drawings; you might as well give it a try.
1. Hole centroid 2. Parallelism 3. Reference
The last edit to this post was made by wanlirn on 2022-11-21 at 08:04. What’s required is that the axis of this opening be parallel to the axis of the shell, with the degree of parallelism being within a Φ2 cylinder; in other words, it emphasizes that the axis of this hole is not perpendicular to the surface of the shell. . It might be a mounting hole; there’s just a requirement regarding the direction
Align and assemble using the axis of this hole as a reference
The first is the position where the size markings are located; the second is the central axis of the hole, which serves as a reference for defining the boundaries around the hole; the third is the requirement regarding the parallelism between the perimeter of the hole and its theoretical center line
1 —— Reference point for the opening location —— Dimension for positioning the opening axis (110? ) the intersection point with the outer wall of the housing – the axis of the opening passes through this point at an angle of 7.5 degrees to the vertical line