WANLONG
First, the bridge stone cutting machine equipment does not run smoothly, and the main machine vibrates during the cutting process. The reasons for this phenomenon are: the clearance between the spindle box and the bearing is not appropriate; the bearing is damaged; the flange is not clean, there are bumps and scratches; the spindle is bent or damaged; the bearing covers at both ends of the spindle box are loose, the cutting line speed is not appropriate; the segment selection does not match the stone; the saw blade has large runout, etc. are the main causes of the above fault phenomena.
To eliminate this type of fault, you should first check the spindle box components, and pay special attention to measuring the spindle radial runout, saw blade fixed flange end face runout and other parameters.
1. Spindle radial circle runout 0.04; flange cross-section runout 0.08;
2. The verticality of the saw blade shaft and the carriage travel track is not more than 0.05mm, and the verticality of the saw blade shaft and the carriage lifting and lowering motion track is not more than 0.05mm.
3. Also check whether the fasteners are loose, and re-tighten them if necessary. Check the amount of oil in the oil pool. If it is obviously insufficient, it should be replenished in time. Check whether the saw blade of the bridge stone cutting machine swings too much when rotating, and check whether the diamond on the saw blade is exposed, that is, whether the segment is sharp. If the diamond segment is blunt, it can be re-sharpened with refractory bricks. Observe whether the operator operates correctly.
Second, the plate width exceeds the tolerance when the equipment is sliced and cut
The problem of plate width exceeding the tolerance when the bridge stone cutting machine is sliced and cut is a common problem. The plate width exceeding the tolerance here refers to the uneven slice width, and the plates of the same width are large and small. Another type refers to the phenomenon that the plate has a trapezoidal big head and a small head. This type of fault has both incorrect debugging and installation or other mechanical faults, as well as electrical faults such as magnetic scale positioning errors. Only by correctly distinguishing can you get twice the result with half the effort.
1. The main causes of mechanical failure are: left and right guide beam parallelism exceeds the tolerance; the left and right guide beams are not on the same horizontal plane; one or both sides of the guide beam have a straightness tolerance; the meshing clearance of the walking gears on both sides is inconsistent or severely worn; the rolling linear guide rail is damaged; the foundation settlement causes the guide beam to twist and deform; the plate is placed unsteadily on the workbench, and the layout is shifted.
2. The main causes of electrical failures are: damage to the longitudinal inverter; damage to the magnetic scale and probe components or too large a distance between them, loose magnetic heads; unstable or low power supply voltage; for the plate size out-of-tolerance phenomenon caused by electrical failures, in addition to checking the above reasons, attention should also be paid to wiring errors (not distinguishing between strong power cables and signal cables) or system interference caused by external power supplies. The equipment should be reliably grounded during installation and strictly follow the three-phase four-wire power supply requirements.
To distinguish whether it is a mechanical failure or an electrical failure, first understand in detail whether the out-of-tolerance position is fixed, or conduct experimental cutting. If the size out-of-tolerance phenomenon always occurs in the same area when cutting plates of different sizes, it is mostly a mechanical failure. Size out-of-tolerance failures caused by electrical reasons are often sporadic and irregular.
