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Category Cars
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Created 2018-11-06
Owner xzbbvfvbh
Title Cutting sheet installation process considerations
Description One of the most commonly used machines in the flat abrasive cutting disc machinery factory. Whether it is installed properly or not, it meets the safety requirements; whether it is used correctly or not, it is in compliance with the safe operating procedures. These problems are directly related to the personal safety of each employee, so the actual use must cause us to pay enough attention. Positioning problem Where to install the cutting machine, we must first consider the problem in the installation process, we can only do other work if we choose a reasonable and suitable position. The cutting machine is forbidden to install directly facing the nearby equipment and operators or often somewhere in the past. Generally, the larger cutting workshop should be equipped with a dedicated cutting machine room. If it is really impossible to set up a special cutting machine room due to the terrain limitation of the plant, the front side of the cutting machine should be installed with a height of not less than 1.8m, and the baffle is required to be firm and effective. Balance problem The unbalance of the cutting piece is mainly caused by the inaccurate manufacture and installation of the cutting piece, which causes the center of gravity of the cutting piece to not coincide with the rotary axis. The imbalance causes the damage mainly in two aspects. On the one hand, when the cutting piece rotates at high speed, it causes vibration, which is easy to cause polygonal vibration marks on the surface of the workpiece. On the other hand, the imbalance accelerates the wear of the spindle vibration bearing, and in severe cases, the cutting piece is caused. Cracked and even caused an accident. Therefore, it is required that the sand should be statically balanced after the chuck is installed, and the static balance should be repeated after the shaping of the cutting piece or the work is found to be unbalanced. The matching problem matching problem mainly refers to the problem that the chuck and the cutting piece are installed. According to the standard requirements, the diameter of the cutting disc chuck shall not be less than 1/3 of the diameter of the installed sand office building, and the new cutting piece shall be replaced when the cutting piece is worn to a diameter larger than the diameter of the chuck by 10 mm. This will save a chuck cutting piece matching problem, otherwise there will be such a situation, "large horse-drawn car" caused waste of equipment materials; "small horse-drawn cart" does not meet the safety requirements, easily causing personal accidents. Therefore, the chuck and the cutting piece are reasonably matched, on the one hand, the device can be saved, and the material can be cut; on the other hand, it meets the requirements of safe operation. In addition, a diameter of 2 mm larger than the diameter of the chuck and a thickness of 1 mm to 2 mm should be added between the cutting piece and the chuck. Protective problem The main protective device of the protective cover cutting machine, its function: When the cutting piece is damaged due to work, it can effectively cover the pieces of the cutting piece to ensure the safety of personnel. The shape of the cutting piece shield is round and square, and the maximum opening angle is not allowed to exceed 90°; the material of the protective cover is not less than 415N/mm2 steel. When replacing a new cutting piece, the protective cover should be installed firmly and reliably, and the protective cover should not be dismantled or discarded. One of the main protective accessories for the screen cutting machine, the opening above the water level of the main shaft of the protective cover is greater than or equal to 30 (this device must be provided. Its main function is to cover the grinding process from flying, so as not to hurt the operator. It is installed on The front end of the protective cover shall be wider than the width of the resin EN12413 cutting discs cover, and the protective cover shall be firmly fixed. In addition, the clearance between the circumferential surface of the cutting piece and the baffle shall be less than 6 mm. One of the commonly used accessories for the bracket problem cutting blade cutting machine, according to the cutting blade diameter of 150mm or more, the cutting machine must be provided with an adjustable bracket. The distance between the cutting piece and the bracket should be less than 1/2 of the minimum shape of the workpiece to be ground, but the maximum should not exceed 3 mm. Grounding Problem The cutting machine uses a power line, so the device housing must have good grounding protection. This is also one of the important factors that cause accidents.
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