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Repair maintenance of precision four-column hydraulic cutting machine

2020-03-18
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Repair maintenance of precision four-column hydraulic cutting machine
The maintenance of cutting machine is a general term for two types of work: machine maintenance repair. Maintenance is a daily activity to maintain the specified technical functions of the equipment, repair is an activity to troubleshoot restore the technical functions of the equipment.
During the use of the cutting machine, due to various wear, erosion, fatigue, deformation, aging other phenomena of parts, the precision is reduced, the function is reduced, the product quality is affected. In severe cases, the equipment will be shut down. The maintenance of the cutting machine is to maintain repair the machine to reduce its degree of deterioration extend its service life.
The maintenance of the cutting machine includes equipment inspection, adjustment, lubrication, timely handling reporting of abnormal phenomena. In order to ensure the normal operation of the machine, reduce wear, maintain accuracy extend service life, reasonable lubrication, maintenance maintenance are required.
1. Inspection of the cutting machine
The inspection of the cutting machine is mainly daily inspection, the main content is the vibration, abnormal sound, looseness, temperature rise, pressure, flow, etc. of the relevant equipment. Generally, the performance working condition of the machine can be judged the appearance of the equipment in operation by sense organs, simple instruments, the state of the processed products. Such as the temperature, pressure speed of the bearing of the mechanical cutting machine, the punching accuracy, noise, the oil quality leakage of the hydraulic cutting machine, etc. In short, the inspection parts, cycles, etc. should be determined according to the complexity of the cutting machine, the characteristics of the function, the importance to the product quality, so as to formulate the repair parts, time technical preparations. The inspection work is generally jointly responsible by the operator the maintenance worker.

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2. Lubrication of cutting machines
Lubrication of cutting machines is an important measure to reduce the wear of parts during operation avoid failures. Poor lubrication of mechanical cutting machine bearings can lead to accidents such as overheating seizure. Therefore, lubrication work is one of the important contents of cutting machine maintenance. Implementing the "five-fixed" lubrication method standardizes institutionalizes daily lubrication work, makes the content concise, simple easy to remember.
The details are:
(1) Fixed point: determine the lubrication parts, lubrication points inspection points of the equipment.
(2) Determined quality: use oil according to the grease brand specified in the machine manual.
(3) Quantity: determine the amount of oil to be added to the lubrication parts of the equipment to prevent waste manage equipment oil leakage.
(4) Schedule: add oil, add oil clean oil according to the time specified in the machine manual to ensure timely lubrication.
(5) Determine the person: determine the operator maintenance worker for lubrication work, assign responsibilities to people.
3. Requirements for machine maintenance care
The daily maintenance of the cutting machine is the responsibility of the operator, who needs to understand the equipment structure comply with the operation maintenance regulations.
(1) Before starting work (shift change intermittent work), the main parts of the machine should be checked lubricated.
(2) During the shift, the equipment should be used strictly according to the equipment operation procedures, the equipment operation status should be observed carefully. If any problems are found, they should be dealt with reported in time.
(3) Before the end of each shift, the machine should be cleaned lubricated on all friction surfaces bright surfaces.
(4) Under normal two-shift working conditions, the machine should be cleaned inspected every two weeks.
(5) If the machine is to be left unused for a long time, all bright surfaces must be wiped clean coated with anti-rust oil, the entire machine should be covered with a plastic cover.
(6) Do use inappropriate tools unreasonable knocking methods when disassembling assembling the machine.
(7) The hydraulic oil of the hydraulic cutting machine should be changed regularly (once a year), the filter screen should be checked for blockage rupture, whether there is oil leakage in the cylinder components.
4. Technical safety precautions
(1) After the machine is installed, it is necessary to ensure that the safety protection devices are complete the lines pipelines are intact. Properly ground the motor.
(2) When repairing, adjusting, refueling, wiping, inspecting the machine, the power supply must be cut off to avoid danger.
(3) Before starting the machine, pay attention to the surrounding environment to see if there are people working under the machine.
(4) During operation, the self-priming pump is allowed to place any irrelevant items such as oil bottles tools on the workbench.
(5) If an accident occurs after starting the machine, if there are abnormal noises jams, stop the machine check immediately.
(6) It is strictly forbidden to put your hands into the cutting area while the machine is running. Even when the machine is parked, it is strictly forbidden to change the tool adjust the tool in the cutting area.
(7) The brake part needs to be checked frequently. Under no circumstances should the upper plate of the cutting machine be recut move (slip) spontaneously.

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