生產(chǎn)管理-tpm方法(已修改)
2025-06-12 17:20 本頁面
【正文】 TPM METHOD TPM GLOBAL INDICATOR: THE TRS TRS = Quality production time Opening time TRS = Number of good parts produced x Cycle time Opening time Cycle time = Initial reference + improvements Initial ref. = Minimum technical time TPM RELIABILITY INDICATOR Average of good working time MTBF = Actual production time Number of real stoppages TPM RELIABILITY INDICATOR = MTBF (mean time between failure) It is the average duration in minutes during which the machine or the installation functioned without any stoppages. The stoppages are: machine breakdowns breakdowns related to tools breakdowns related to the product stoppages for changeovers (used or broken) stoppages for frequent adjustments stoppages for inspection (SPC sampling) stoppages for maintenance Stoppages for tool changeovers are not taken into account TPM BREAKDOWNS AND MICROSTOPPAGES: ? BREAKDOWNS –Stoppages = 5mins –Not often –Systematically noted –Stoppage affects the entire working group –Intervention of an expert –Research necessary before startup –Identifiable causes ? MICROSTOPPAGES –Stoppages 5mins –Often –Not noted –Little or no perception by the group –Easy startup without elimination of the cause (suppression of the effect) –Non identified causes –Little motivation to eliminate them because little perceived impact on production –Strongly involve the operators and automatic installation people for tasks without Added Value TPM DATA COLLECTIONS ?BREAKDOWN RECORDS OF THE LAST 6 MONTHS ?PRODUCTION NOTEBOOKS ?OPERATOR EXPERIENCE ?THE DATE OF THE LAST TECHNICAL MODIFICATION DONE ON ONE PART OF THE MACHINE –Pareto of unsolved breakdowns of the last 12 months –Eliminate from this database the solved breakdowns –Priority is to solve breakdowns that represent the highest stoppages –Repetitive breakdowns must be highlighted breakdown1 breakdown2 breakdown3 breakdown4 breakdown5 breakdown6 TPM : Breakdowns Pareto analysis of breakdowns TPM: BREAKDOWNS TREATMENT METHODOLOGY Register the anomalies (including the breakdowns) Carry out the repairs Define the actions to avoid recurrence Confirm the cause Steering: Supervisor Execution: Maintenance Prof. / Workshop Technician Method: Management of operations and spare parts Steering: Supervisor Execution: Maintenance Prof. + TA + Supervisor Method: 1h30 meeting once a week, 5 Why or eventual creation of a PSG Steering: Supervisor Execution : Operators Method: Record on a notebook near the machine or installation as they occur PROCESS People Concerned Methods Know the history of breakdowns and current work Tps interv. Resp. 0 to 5 mins: GAP 5 to 15 mins: Tech 15 mins: Expert 30 mins: Maintenance 2 1 3 4 TPM: BREAKDOWNS TREATMENT METHODOLOGY Create or modify if necessary the routine sheet of preventive maintenance Apply the new st
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