CNC wire cutting machine
OwnerViswesh Srinivasaninventor
Life of this patent
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Abstract
In CNC wire cutting process, the deflection of the wire due to cutting force is proportional to square of the wire length. Hence it is beneficial to adjust wire length as per job size and keep it minimal. But existing wire cutting machines, wire length adjustment is not feasible. Hence there is a need to develop a simple user-friendly method of wire length adjustment. This invention proposes a simple user-friendly method of wire length adjustment in abrasive wire (100A) and hot wire cutting (100B) machines. This invention also proposes an intelligent faster cutting method without affecting wire life or pulley life. This invention also proposes an intelligent method of start point selection in CNC wire cutting machines, to avoid part defects.
Claims13
An abrasive wire cutting machine (100), which is a subset of CNC wire cutting systems (100), comprising:
- cutting wire (101), cutting block (102), with pulleys (104), (105), (106), (107), with one of them attached to a motor and other 3 being idler pulleys, moving the wire at high speeds, with all the four pulleys locked to a frame 115 either rigidly or floating on Linear motion rails, with one of the top pulleys on Linear Motion rails (110), (110a) and pushed by a spring loaded linear actuator (112) for maintaining wire tension, and the bottom idler pulley (107) is on a horizontal LM rail Block system (113, 113A, 114), such that distance between bottom pulleys (104), (107) can be adjusted by the user, thus increasing or decreasing effective cutting wire unsupported length (201), allowing user to keep shorter wire unsupported length, when width of block (102) is thinner, which reduces deflection of the cutting wire (101) due to cutting forces.
Dependencies are inferred from the claim text.