CNC press brake operator is testing run the machine in the factory. [ Ссылка ] It is a CNC hydraulic press brake 80Ton 2500mm with ESA 630 control system.
Trial Operation and Test Run of Machine
- Before CNC press brake operator trial run of machine, each lubricating point must be greased by calcium grease, and the oil tank of hydraulic system shall be filled with N46# mechanical oil, which shall be replaced after first one month operation and be replaced thereafter depending on the actual condition every year.
- During the initial trial operation, start the oil pump motors under idle condition firstly and then operate machine in “inching” operation mode, after that execute “Single cycle” mode to test the ram stroke and backgauge. Operate the machine according to the following procedures when the machine is running normally.
- Plate thickness and Calculation of bended plate length or check the bending force and V-opening of bottom die（the V-opening width is normally≥8 times of plate thickness）.
- Align the center of top and bottom dies.
- Determine the gap between the top and bottom dies and adjusting.
- Determine the positions of front and back gauge.
- Determine operation mode “Inching”, “Single cycle” and use the selector switch to select the operation mode.
- Put the workpiece on the middle of worktable for trial press.
- Adjust dies gap again.
- Pay attention to the sealing parts and replace it if any leakage.
- The plate must be put on the middle of the machine without unbalance loading or side loading avoid the influence precision of the workpiece and the machine. If some workpieces need to be bent on the side of machine, the CNC press brake operator should adjust the bending force less than 25percent of nominal force, and bend the plate on both side of machine at same time avoid side loading.
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