A. Check before driving
1, according to the machine tool lubrication chart filled with suitable lubricating grease.
2, check the electrical facilities of each department, handle, transmission parts, protection, limit device complete and reliable, flexible.
3, each gear should be in the zero position, belt tightness should meet the requirements.
4, the bed surface is not allowed to store metal objects directly, so as not to damage the bed surface.
5, the workpiece to be processed, no mud and sand, to prevent the mud and sand fall into the dragging board, wear bad guide.
6, before the workpiece is not clamped must be empty test run, to confirm that all normal, before the workpiece can be installed.
II. Operation procedure
1, on a good workpiece, first start the lubricating oil pump, so that the oil pressure reaches the provisions of the machine tool, before starting.
2, adjust the exchange gear rack, adjust the hanging wheel, must cut off the power supply, adjusted, all bolts must be tightened, the spanner should be removed in time, and off the workpiece test run.
3, after loading and unloading the workpiece, should immediately remove the chuck spanner and the floating object of the workpiece.
4, the tailstock of the machine tool, crank, etc. according to the processing needs to adjust to the appropriate position, and fasten or clamp.
5, workpiece, tool, fixture must be mounted firmly. Floating power tool must be led into the workpiece part, before starting the machine tool.
6, When using the centre stand or follow the tool stand, it must be adjusted to the centre and have good lubrication and support contact surface.
7, When processing long material, the part behind the spindle should not be too long, if it is too long, it should be installed on the bracket, and hang the danger mark.
8, When feeding the tool, the tool should approach the work slowly to avoid touching; the speed of dragging the board back and forth should be even. When changing tools, the tool and the workpiece must be kept at an appropriate distance.
9, The cutting tool must be tightened, and the extended length of the turning tool should not exceed 2.5 times the thickness of the tool in general.
10, When processing eccentric parts, there must be a proper counterweight to balance the centre of gravity of the chuck and the turning speed should be appropriate.
11, The workpiece beyond the body of the chuck must have protective measures.
12, Adjustment of the tool must be slow, when the tool light is 40-60 mm from the workpiece processing part, should be changed to manual or work feed, not allowed to fast feed directly eat the tool.
13, When using the file to light the workpiece, the tool holder should be retired to the safe position, the operator should face the chuck, the right hand in front, the left hand in the back. The workpiece with keyway and square hole on the surface is forbidden to be processed by file.
14, When using abrasive cloth to polish the outer circle of the workpiece, the operator should pull the two ends of the abrasive cloth with both hands for polishing according to the posture specified in the above article. It is forbidden to use fingers to hold the abrasive cloth to polish the inner hole.
15, When automatically walking the knife, the small knife holder should be adjusted to be flush with the base to prevent the base from touching the chuck.
16, When cutting off large and heavy workpieces or materials, sufficient machining allowance should be left.
Three, parking operation
1, Cut off the power, unload the workpiece.
2, each ministry handle inverted zero position, count the work apparatus, clean up.
3, Check the condition of each protection device.
Fourth, the operating precautions
1, non-staff operation of the machine is strictly prohibited.
2, it is strictly forbidden to touch the tool, the rotating part of the machine tool or rotating workpiece during operation.
3, is not allowed to use the emergency stop, such as in case of emergency with the button after the stop, should be in accordance with the provisions of the machine tool before starting, re-check again.
4, not allowed to step on the lathe’s guide surface, screw, light bar, etc., except for the provisions are not allowed to use the foot instead of the hand to operate the handle.
5, the inner wall has a sand hole, shrinkage or keyway parts, not allowed to use the triangle scraper scraping the inner hole.
6, after the pneumatic hydraulic chuck compressed air or liquid pressure must reach the specified value, before use.
7, turning slender workpiece, in the bed before the two sides of the extension length of more than 4 times the diameter, should be used in accordance with the provisions of the process. Centre frame or follow force frame support. In the back of the bed extended, should add protection devices and warning signs.
8, When cutting brittle metals or cutting easy splash (including grinding), protective stoppers should be added and the operator should wear protective glasses.
Post time: Feb-07-2023