The following explains the precautions for the use of high-precision double-end grinding machines
The following explains the precautions for the use of high-precision double-end grinding machines
The operation of any machine tool product is more technical content, at the same time, it is also more dangerous, therefore, before we operate the machine tool, we should have a brief understanding of the operation, we take the high-precision double-sided grinder as an example.
1. Carefully implement the relevant provisions of the "General Operating Procedures for Metal Cutting Machine Tools".
2. Carefully implement the following double end grinding machine general provisions:
High precision double end grinding machine new grinding wheel installation:
(1) Carefully check the new grinding wheel of the high-precision double-sided grinder, if there is a crack, it is strictly prohibited to use.
(2) The new grinding wheel should be carefully balanced twice, and the spindle should be loaded with diamond once before installation, and then the balance should be removed.
(3) When installing a new grinding wheel, a 0.5-2mm paper pad should be placed between the grinding wheel and the flange of the double-sided grinder. The screw of the flange should be evenly tightened, but not overpressed to avoid crushing the grinding wheel.
(4) After the installation of the new grinding wheel of the double-sided grinder, it can be idled for not less than 5 minutes at the working speed, and it can only work after confirming the correct installation and normal operation.
Before work, check whether the grinding wheel and grinding wheel cover of the high-precision double-sided grinder are intact without cracks, whether the installation is correct, and whether the fastening is reliable. The machine tool without grinding wheel cover is not allowed to start.
3. Work hard:
(1) Before starting the grinding wheel each time, the hydraulic switch valve should be placed in the stop position, the adjusting handle should be placed in the low speed position, and the quick feed handle of the grinding wheel should be placed in the backward position to avoid accidents.
(2) High-precision double-end grinding machine: Before starting the grinding wheel of high-precision double-sided grinding machine, the lubrication pump or the oil pump of the static pressure oil supply system should be started first. After the grinding wheel spindle is normally lubricated, the mercury switch is lifted or the hydrostatic pressure reaches the design value, and the grinding wheel spindle is floating, the grinding wheel can be started to rotate.
(3) At the beginning of grinding, the feed should be small, the cutting speed should be slow, and the grinding wheel should be prevented from cold and brittle cracking, especially when the temperature is low in winter.
(4) High-precision double-end grinding machine: When the grinding wheel quickly enters the workpiece, it is not allowed to maneuver feed or large knife feed, pay attention to the protruding edges and corners of the workpiece to prevent collision.
(5) High-precision double-end grinding machine: When the temperature of the grinding wheel spindle exceeds 60, it needs to stop working and work after the temperature returns to normal.
(6) It is not allowed to use the grinding wheel of the high-precision double-sided grinder as an ordinary grinder to grind things.
4. For double-sided grinding machine tools using coolant, the cooling pump should be turned off after the end of the work, and the grinding wheel should be idled for a few minutes before stopping the grinding wheel rotation.
Tip
When more than one grinding wheel is mounted on the grinding wheel chuck at the same time, it is permissible to separate the grinding wheel with a gasket, the diameter of the gasket and its dimensions to the grinding wheel pressing surface shall be equal to the dimensions of the grinding wheel chuck, allowing specially manufactured grinding wheels to be bonded or stacked together for installation.
