It's all about how to do the maintenance and inspe

2022-08-16
  • Detail

How to do machine tool maintenance and inspection? This article says it all.

machine tools are one of the fixed assets of enterprises, creating a steady stream of profits and enterprise efficiency for enterprises. After the machine tool has been used for a certain number of years, it is necessary to do a good job in various repairs and maintenance. The basic contents of machine tool equipment inspection include: equipment maintenance, equipment inspection, equipment maintenance

equipment maintenance part

I. equipment maintenance: the content of equipment maintenance is to keep the equipment clean, tidy, well lubricated, safe operation, check whether the fasteners are loose, adjust the movable clearance of each part of the machine tool, etc., which can be summed up as "cleaning, lubrication, fastening, adjustment, corrosion prevention" these ten technical words of vigorously developing plastic granulators that utilize renewable energy and industrial waste heat. Practice has proved that the service life of equipment largely depends on the quality of maintenance. Maintenance is divided into daily maintenance, primary maintenance, secondary maintenance, tertiary maintenance, etc. according to the workload and difficulty

1. Routine maintenance, also known as routine maintenance, mainly includes cleaning, lubricating, fastening loose parts, and checking the integrity of parts and components. There are few items and parts of this kind of maintenance, most of which are outside the equipment

2. First level maintenance mainly includes tightening, cleaning, lubrication and fastening, and 1/2 of which is the energy loss of the pendulum in the process of one swing, which should be partially adjusted. Daily maintenance and first-class maintenance are generally undertaken by operators

3. Secondary maintenance, mainly including internal cleaning and lubrication, inspection, disassembly and adjustment of major parts of the machine tool

4. Three level maintenance mainly refers to the disassembly, inspection and adjustment of the main part of the equipment. If necessary, the parts that reach the specified wear limit must be replaced and repaired

in all kinds of maintenance, daily maintenance is the foundation, and the type and content of maintenance should be specified according to the characteristics of different equipment, not only considering the specific conditions and characteristics of the production process, structural complexity, scale and size of the equipment, but also considering the long-term maintenance habits formed in different industrial enterprises

equipment inspection

II. Equipment inspection: it refers to the measurement and verification of the operation condition, working accuracy, wear or corrosion degree of the equipment, comprehensively mastering the use condition and wear condition of the machine tool through inspection, timely identifying and eliminating the hidden dangers of the machine tool, and purposefully preparing for repair in order to improve the repair quality and shorten the repair time

1. The examination is divided into daily examination and regular examination according to the time interval. The daily inspection is carried out by the equipment operator, combined with daily maintenance, in order to find abnormal technical conditions in time and carry out necessary maintenance. Regular inspection is carried out regularly by professional maintenance workers with the participation of operators according to the plan. The purpose is to comprehensively and accurately grasp the actual situation of parts wear through inspection, so as to determine whether it is necessary to repair

2. Inspection can be divided into mechanical performance inspection and machine tool accuracy inspection according to technical functions. Mechanical performance inspection refers to the inspection and measurement of various mechanical properties of the equipment. For example, whether the cooling system of the turret milling machine leaks oil or water, whether the CNC milling machine leaks air, and how dust-proof sealing is, and whether it will cause insufficient air pressure in the tool magazine of the machining center, resulting in disordered cutting and other faults. Whether the spindle parts of CNC milling machine can withstand high temperature, high speed and high pressure. Accuracy inspection refers to the inspection and measurement of the actual machining accuracy of the equipment, such as the radial runout of the machine tool spindle, the flatness, verticality, Ovality and other accuracy changes in X, y, z directions

equipment maintenance

III. equipment repair: no matter ordinary equipment, CNC equipment, domestic equipment, imported equipment, after long-term use, many parts and vulnerable parts have varying degrees of wear and damage, resulting in the reduction of equipment performance, machine tool accuracy and production efficiency. The wear of parts and components will directly lead to the change of machining size, the deviation or scrap of machined parts. Failure to replace the damaged and vulnerable parts will lead to the abnormal operation of the machine tool, cause greater damage to the machine tool parts, and cause the overall scrapping of the machine tool. Therefore, the repair of machine tools is to check the damage causes of mechanical parts and vulnerable parts, repair, replace parts, eliminate various faults, restore the accuracy and performance of machine tools, and improve the working efficiency and service life of machine tools. The maintenance methods of machine tools are as follows:

1. Post maintenance: also known as fault maintenance, it refers to the maintenance after the machine tool breaks down or is damaged, causing downtime. The purpose is to repair the original function, which is the most backward maintenance method. Post maintenance is used in the following situations:

① machine tool failure does not affect the safety of assembly and system

② the fault is occasional and the rule is not clear

③ although it is damaged by vulnerable parts, it is more economical to repair afterwards

2. Regular maintenance, also known as planned maintenance, takes the service time as the maintenance period. As long as it is used for a predetermined time, the specified maintenance must be carried out regardless of the state of the machine tool. The advantage of regular maintenance is that it is easy to master the maintenance time, facilitate the formulation of maintenance plan and organization management, and have a better fault prevention effect

3. Improved design and maintenance refers to that machine tool failures occur too frequently, which is not suitable for the processing needs of special parts of the enterprise. At the same time, the cost of repairing or replacing parts is large, and spare parts are labor-intensive and downtime costs are high. Adopting improved design and maintenance is the best method for nearly 30 plastic products enterprises that export food contact products in Panyu District

4. Process of machine tool maintenance:

① overhaul is to disassemble all equipment, repair and replace all worn parts, completely eliminate defects, restore the original accuracy, performance and efficiency of the equipment, and meet the factory standard

② intermediate maintenance refers to the partial disassembly of the equipment, the repair or replacement of main parts and benchmark parts, the inspection of the entire mechanical system, and the fastening of all body parts, so as to ensure that the machine tool can meet and restore the due standards and technical requirements, and support the smooth evolution to the new LED curing technology in the future

③ minor repair refers to repairing and replacing vulnerable parts with fast wear or parts with a service life shorter than the repair period, and adjusting the local structure of the machine tool to ensure that the machine tool can operate normally until the planned repair time

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