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Do you know what concepts and implementation contents are included in regular inspections?

2019-08-13View Original

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Regular inspections refer to regular inspections of the performance, defects, hidden dangers, and degree of equipment deterioration of important equipment using the senses and special detection instrumentation tools to provide a basis for determining equipment overhaul and medium repair plans. The length of the inspection period should be divided into one week, half a month, one month, and several months according to the specific conditions of the equipment. Tihao Machinery is the company's main products with machine tool thimbles, tool holders and tool arbors, shaft machining, CNC machining, spindle screws, chuck adapters, and non-standard parts processing. Regular inspections include key inspections (including coincident inspections) and long-term inspections (i.e. cycle management). Regular inspection is the core inspection operation of the equipment. It is also the best way to deepen the concept of comprehensive management of equipment and shift the management focus down to the site. Regular inspections are carried out by full-time inspection personnel, and their work activities are basically carried out in the following aspects: 1. Ask the full-time inspection inspector before carrying out inspection operations. First, you must go to the production operation position to check the operation records and equipment operation status, and collect current equipment information, such as operation logs, night equipment status, fault handling, emergency repair records, shutdown reasons, etc. Check the daily inspection work of the personnel on duty. Provide technical guidance and suggestions on daily inspection operations when necessary, and confirm signatures on operation logs and daily inspection record sheets. If the operator records an abnormal condition of the equipment or raises a question, he or she should give an instructive answer. If a written answer is necessary, a written answer can be used. Never ignore it or deal with it vaguely. After understanding the equipment situation at the operating position, corrections and supplements should be made according to the inspection plan of the original inspection route, so as to maximize the efficiency of the inspection activities on that day. Never let go of minor abnormalities reported in operating positions, adopt the attitude of observing and inspecting things in person, and pay attention to the existence, occurrence and development of hidden dangers. 2. Implement spot inspections. The full-time inspectors shall conduct spot inspections according to the prepared key spot inspection schedule, that is, the planned spot inspections for 1 to 4 weeks, including coincident spot inspections, and follow the revised spot inspection route to confirm the items, contents, and status of the equipment settings point by point. Particularly, the parts and points that have been planned to be repaired in the near future, or the equipment parts and points that have been repaired for abnormal faults must be further diagnosed and confirmed. During the inspection process, simple problems discovered will be handled in a timely manner, and simple problems discovered will be recorded in a timely manner, and comprehensive analysis will be conducted based on relevant data and records. Through spot inspection operations, if it is found that there are obvious deficiencies in the set point standards or spot inspection plans, timely corrections or supplements should be made. If necessary, relevant personnel, including job operators, job maintenance personnel and other full-time spot inspection personnel, should be notified, and reflected in the spot inspection log. Try to collect relevant equipment status information for analysis and processing. 3. Formulation and revision of standards Full-time inspectors are responsible for formulating and revising inspection standards and grease standards for the equipment subject to inspection in their jurisdiction. Before new equipment is put into production and operation, standards must be formulated, including daily inspection standards and regular inspection standards. Daily inspection standards are the basis for production operators to carry out daily inspection operations, while regular inspection standards are the basis for full-time inspection personnel to carry out regular inspection activities. And after a period of implementation, necessary corrections will be made based on actual experience to make it more consistent with objective reality. Tihao Machinery is the company's main products, with machine tool thimbles, tool holders and tool arbors, shaft machining, CNC numerical control machining, spindle screws, chuck adapters, and non-standard parts processing. The quality is guaranteed and trustworthy! 4. Preparation of planning operations The planning of full-time inspection personnel includes inspection plans, maintenance project plans, expected demand plans for spare parts and materials, etc. 1. Inspection plan. The inspection plan is the basis for carrying out inspection activities, including regular inspection plans and long-term inspection plans. 2. Maintenance project plan. The maintenance project plan includes the project implementation plan in the regular maintenance project and the project implementation plan in the daily maintenance project. The preparation of both plans is undertaken by full-time inspectors. 3. The expected demand plan for spare parts and materials includes the demand plan for spare parts and engineering materials, as well as the machine-side spare parts plan and the special tool and equipment plan. 4. Other plans. Other sporadic plans include plans required for inspection operations and management. Such as the technical diagnosis plan and precision inspection plan required for deterioration tendency management, oil storage and oil consumption analysis and inspection plan, etc. 5. Management of maintenance costs Maintenance costs are controlled, used and managed by the inspection team of the equipment steward system. Based on the total cost given above, the equipment manager determines whether to repair the control points with hidden dangers or faults based on the inspection results to control the use. The inspection team must make overall arrangements for maintenance costs, ensuring both quality and quantity. Complete this year's production tasks according to orders or contracts, and ensure that the total maintenance cost limit is not exceeded. As for how these maintenance fees are used, that is, which equipment faults need to be repaired and which ones should be dealt with, it is fully handled by the inspection team responsible for the equipment management system of the main operation line, including mechanical, electrical, instrumentation and other majors. In addition to ensuring overall security, leaders at all levels must provide all-round guidance to equipment housekeepers for inspections, open up a wide range of opportunities, create conditions for inspections to complete their stewardship work, and be a strong backing for them. The full-time inspection personnel budget the equipment maintenance costs in the inspection area and propose a maintenance cost budget plan, including annual, quarterly and monthly budgets. Based on the maintenance plan of the inspection area, the annual maintenance project plan and spare parts demand plan are determined, as well as the labor budget plan for project construction, etc. After obtaining the budget plan amount, fully grasp and control the expenditure, use it rationally, and do not spend money casually. No expenditure can be made without the confirmation and signature of the district inspector. And use it for comparison with the same period and the same item. At the same time, full-time inspectors must also conduct monthly, quarterly and annual accounting and control, try their best to save maintenance expenses, and reduce maintenance costs and production costs. 6. Deterioration tendency management Inspection operations can detect hidden dangers, anomalies, etc. in equipment in a timely manner, but cannot predict the degree of progress and deterioration trends, nor can they be quantitatively measured and analyzed. Therefore, the degree of tendency management must be carried out. This kind of observation and measurement of the changes in the working status of the machine parts, so as to be able to grasp its degree of deterioration and adopt corresponding countermeasures for maintenance is called "deterioration tendency management" in inspection operations. This is a large amount of quantitative management work in inspection operations. As long as the working parts have changes in loss, including wear, deformation, corrosion, etc., tendency management can be carried out to quantitatively grasp the service life of the parts, predict the remaining working life of the parts, and provide a reliable basis for the preparation of maintenance plans, spare parts and material plans, and maintenance cost budgets. 7. Failure accidents and management For the main production line, especially the single-line continuous production line, the inspectors devote a lot of energy and time to the equipment failure management to pay attention, observation and detailed analysis. Because a slight failure or abnormality in a certain link will cause the entire line to shut down and stop production. It is the responsibility of inspection to eliminate serious threats to production. The purpose of implementing inspection and repair is to prevent equipment from malfunctioning and ensure normal production. On the contrary, the occurrence of equipment failure is an objective reflection of the effect of inspection implementation. Only through fault management, we can grasp the actual performance, obtain equipment status information in a timely manner, analyze and explore the regularity of equipment failures and accidents, formulate effective preventive measures, and perform maintenance work before equipment failure, in order to achieve the purpose of stable operation and continuously summarize, improve, and deepen inspection work. 8. Collect intelligence and transmit information. Full-time inspectors are the nannies and health care doctors of the equipment. They are very concerned about all changes in the production equipment and are collecting various intelligence information on the equipment at any time. Including the operation and usability of the equipment, the decline in performance and accuracy, repair and maintenance status, inspection and treatment status, faults and hidden dangers, measurement data of wear and deterioration of machine parts, information provided by daily inspections, and improvement measures for equipment parts, etc. All information and records related to equipment status are intelligence that should be collected during inspections. At the same time, after analysis and processing, they are passed to relevant departments and personnel in order to establish maintenance policies and corresponding maintenance countermeasures, creating a set of organically linked equipment management and a good environment for inspection control. 9. Improvement Suggestions: Through the activities of mastering information and on-site inspection management, we can better understand the temperament of the equipment, especially the hidden defects and potential bad factors. We should consider improving these parts and make the improvement opinions concrete to form improvement suggestions to help the maintenance construction make corresponding improvements. Especially potential failure factors of equipment, such as equipment that is difficult or impossible to inspect. ; Equipment that is difficult or irreparable to repair ; For equipment that is fragile and often malfunctions ; Equipment that has not reached the original design level and performance ; Equipment that affects the entire machine due to defective parts of the machine ; and other equipment that contributes to improvements in production, safety, and environmental protection. Put forward specific improvement suggestions and cooperate with relevant departments to implement improvement measures. 10. Management of machine-side spare parts Machine-side spare parts are the material basis for spot inspection and emergency maintenance. They are generally the most commonly used and easily worn maintenance spare parts and recycled spare parts in the spot inspection professional area. There are accident parts with high damage rate, large installed capacity, and important positions. There are also new products or products to be repaired that are left over from the maintenance project, repair parts that are not stored in the warehouse, and spare parts that require direct payment to the site when purchasing. Therefore, the types of machine-side spare parts are very complex. Therefore, the inspection and management of machine-side spare parts must assist the operation manager in making a reasonable plan, unified notation, positioning and placement, creation of accounts and cards, and physical management. The inspector proposes a supplementary use plan based on the consumption situation, signs it when it is put into use or received, and the maintenance cost is apportioned and recorded. At the same time, the maintenance cost usage can be adjusted. Inspection personnel should establish the awareness of being a family member to manage spare parts on the machine. Implementation steps of regular inspections: (1) According to the purpose of regular inspections, combined with the enterprise’s management experience and the technical level of full-time inspection personnel, determine the inspection scope, inspection items, and inspection methods of regular inspections. (2) Detail the inspection items, content, cycle and identification standards, which are based on the equipment wear pattern and the requirements to ensure the function, accuracy and safety of the complete machine. In order to combine the maintenance level and cycle of the equipment with the current status of the testing equipment, the regular inspection area can also be divided into several levels. (3) Refine inspection methods and formulate a comparison table of inspection items, objects, matters, instruments, and diagnostic standards. (4) Establish regular inspection stations (points) and equip them with testing instruments. (5) Develop regular inspection work specifications and procedures. (6) Establish a guidance and supervision system for regular inspection work, with regular spot checks and guidance from senior managers. (7) Organize regular inspection training courses, conduct testing instrument operation training and technical assessment, and issue certificates for employment. (8) Formulate and implement regular inspection and economic assessment plans. Essentials for implementing regular inspections: ①Determine the main responsible department for periodic inspections (regular inspections of equipment and minor maintenance operations cannot be completed satisfactorily without professional knowledge and experience. Depending on the situation, the recognized qualifications need to be formally disclosed). ②Things that involve laws and regulations during regular inspections must be inspected according to laws and regulations (for equipment, it is sometimes a good idea to entrust it to a specialized inspection company). ③Make a check list for periodic inspections (the check list should be made based on past fault records as a reference, based on the machine manufacturer's instruction manual). ④Carry out inspections according to the regular inspection checklist. ⑤If a fault is found during inspection, repairs must be carried out even if the operation is normal.

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