a processing of the pain axis
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A processing summary of the pain axis: /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
Migraine needs two heads of pain, external circle, external circle, pain direction, common pain level, not the same, usually within mm, the pain is wrong, the demand is less than 0. 05mm, the demand is selected, the following process tooling, the outer circle processing, both ends, the mmmm process chuck is required. Chuck reference coaxial step reference straight straight two-headed collet milled into a flat view demand benchmark 2002: machine tool, accession to the WTO is a warfare, the professor pointed out that we must increase the development of China's CNC machine tools to accelerate the popularization of CNC machine tools. The service status of China's milling machine and processing intermediate shopping malls and the prospects of domestic and international lathe skill level and development direction of international processing, production, demand and development intentions of domestic and international machine tools to develop trends, international CNC system development trend cutting machining skills and CNC machine tools This kind of painful axis requires two B and C painful outer circles and A reference outer circle to be in the same direction; and the degree of partial pain is different; usually within 5mm; the need for partial pain error is less than 0. 05mm.
In order to satisfy the above requirements; the following processes and tooling were selected.
Firstly, all the outer circles of the A-reference are processed; the process chuck with 50mm and 25mm is left at both ends of the shaft; the required chuck is coaxial with the A-reference and the step surface is straight with the A-reference.
The two heads of the shaft are milled into flat 42h6; see Figure 1; the demand flat is symmetric with the A reference and the two ends are parallel.
Tooling manufacturing: two pieces of card cans; as shown in Figure 2; the demand groove 42H7 is symmetrical with the middle hole B5; the end face of the groove is straight with the middle hole.
The cans are mounted on the two ends of the shaft; the direction of the tanks should be common; the grooves of the cans cooperate with the flat 42H7/h6 of the shaft; the direction of the pain is manipulated, and the compression screws on the conditioning cans can be adjusted. The amount of pain is such that the end face of the can is pressed against the step surface of the shaft; ensure that the middle of the shaft is parallel to the middle of the can.
Double-clamp clamping on the lathe; four-claw clamping card can rotate; use the A-standard two-head outer circle to measure with the table; adjust the screws on the can; adjust to a different amount of pain; turn each pain to the outer circle to scale.
When the pain axis is processed, cut the two process chucks.
This kind of processing method is simple and reliable; it avoids the tediousness of the original processing method (the middle hole of the trampoline); it can be applied to the multiple painful pain axis processing common in the demand direction.
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