Matters needing attention in machining of mechanical modules
1, touch wear position, insert the wear position in the rear mold protruding position to stay 0.02MM FIT mode.
2, processing can not have glitches, to ensure the smoothness, the required tolerances must be done. (General overall tolerance 0.010)
3, pin holes to be processed according to tolerances.
4, gate, flow path in strict accordance with the size of the drawings with the machine (CNC, EDM) processing, and to ensure the degree of finish, and firmly do not allow hand-grinding machine and rough knife pattern.
5, front and rear mold surface does not allow uneven, pit, rust and other defects that affect the appearance. The parting surface is kept clean and tidy, the sealing part has no dents, and accuracy is guaranteed. The front mold and rear mold tendons, column surface, no fire pattern, knife marks, and try to polish. The tube pinhole surface is reamer finely twisted, with no fire pattern or tool marks.
6. Whether the depth of the exhaust groove is less than the overflow value of the plastic, less than or equal to 0.02mm, the exhaust groove is machined by the machine tool, and there is no manual grinding machine to polish the trace.
7, cup hole side negative 0.01MM --- 0.02MM, the bottom generally do deep -0.02MM.
8. After the tiger's mouth is unified, the tiger's mouth protrudes unilaterally and negatively 0.05MM, and the plane is ensured, and the R angle is avoided.
9, pillow position light number, pillow and parting surface out 12.00MM outside the empty depth of 0.2MM or more, the plane can not avoid the air.
10, inserts, studs, etc. to be fixed and fixed, round pieces have stop. Inserts are not covered with copper or iron under the inserts, and internal mold parts and inserts are not allowed to be welded.
11, Tsui Tsui hole, Division tube hole, thimble hole are used wire cutting processing, and distribution. The end face of the jack is consistent with the core.
12. The circumference of the waterproof rubber ring groove should be rounded with R0.3-R0.5mm small round corners to avoid crushed rubber ring when loading.
13, mold parts must have a number. Numbers are not allowed to be machined manually with the sander. The front and rear molds can be used with a flat cutter at the base reference position to step on the flat and re-engrave. The remaining parts are coded by CNC machining or etching. Requires clear, beautiful, neat and uniform spacing.
14, must be completely in accordance with the customer has confirmed the mold design drawings, if any changes, please notify the customer or project personnel.
14.Please keep the surface smooth and free of any scratches, and do not arbitrarily beat