All-electric servo numerical-control bending machine with upper die load monitoring and protecting device and method thereof
A load monitoring and protection device technology, applied in safety equipment, manufacturing tools, metal processing, etc., to achieve the effect of protecting safety
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[0055] Example one
[0056] Such as image 3 As shown, A is a normal bending condition, and B is an abnormal bending condition; among them, the upper mold 100 is a normal upper mold, and the upper mold 200 is a wrong upper mold installed by mistake. The upper mold 200 is 10mm longer than the upper mold 100 in height. ; Set the working distance to 15mm; then set the upper die load value required in the fast forward zone to 3 tons force, and then set the upper die load value required to bend the workpiece 300 in the work forward zone to 10 tons force; the upper die load abnormality judgment condition In the fast forward zone, the current feedback actual die load value exceeds the preset upper die load value by more than 5 tons.
[0057] A is under normal bending conditions. After the upper die 100 enters the work-in area from the fast-forward zone, the speed gradually decreases and enters the workpiece bending process. B is an abnormal bending condition. Since the upper die 200 is 1...
Example Embodiment
[0058] Example two
[0059] Such as image 3 As shown, A is a normal bending condition, and B is an abnormal bending condition; among them, the upper mold 100 is a normal upper mold, and the upper mold 200 is a wrong upper mold installed by mistake. The upper mold 200 is 10mm longer than the upper mold 100 in height. ; Set the working distance to 15mm; then set the upper die load required for the fast forward zone to be 3 tons of force, and then set the upper die load required for bending the workpiece in the work forward zone to be 5 tons of force; the upper die load abnormality judgment condition is fast The current feedback of the entry zone actually exceeds the preset upper die load value by more than 5 tons.
[0060] B is an abnormal bending condition. Since the upper die 200 is 10mm longer than the upper die 100 in height, the upper die 200 bends the workpiece 300 in advance in the fast forward zone. At this time, the servo drive detects that the actual die load has reached...
Example Embodiment
[0061] Example three
[0062] Such as Figure 4 As shown, A is the normal bending condition, and B is the abnormal bending condition; the upper die 101 is a normal upper die, and the upper die 201 is an incorrect upper die installed by mistake; suppose the upper die 201 is 20mm longer than the effective vertical dimension of the upper die 101 , Set the working distance to 15mm, that is, the upper die 201, the workpiece 301 and the lower die 401 have been completely crushed in the fast-forward zone; set the upper die load value required in the fast-forward zone to 3 tons force, and then set the working-in zone The upper die load value required to bend the workpiece 301 is 5 tons force; the upper die load abnormality judgment condition is that the current feedback actual die load value in the fast forward zone exceeds the preset upper die load value by more than 5 tons, then the bending in the second embodiment Judgment of abnormal bending is a failure condition.
[0063] Then in th...
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