Sometimes, CNC angle line users ask us:
Backmark or gauge line isn’t proper, we tries to adjust, however still 2-3mm error...
This reminds us about JX2020 CNC angle line delivered to Chinese customer in year 1995, customer did very simple machine installation when company moved to new place...
Q:What factors influence CNC angle line gauge line or backmark?
A:Pressing device & V type surface.
When steel angle enters machine, before punching action, pressing jaw holds angle to C type surface, thus ensure backmark stability. Without saying, any problems with these 2 mechanisms will lead to backmark error.
As pic. above shows: Wear occurs when pressing jaw works long time, distance between pressing jaw and angle makes angle processing unstable, and causes backmark error.
This pic shows V type surface, wear also occurs after long term usage. Try to keep 90°A and B surfaces.
Another reason for backmark inaccuracy: not enough strength of pressing cylinder. When angle enters or comes out, pressing area is smaller. SUPERTIME provides with stronger type CNC angle line with vertical pressing cylinder structure for problem-solving.
More info:
Jinan Supertime Technology Co.,Ltd
CNC machine design & manufacture specialist
Fin Press Machine Manufacturers
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