Processing method of workpieces using combined processing machines
AssigneeJtekt Corporation
InventorYoshio Wakazono
Life of this patent
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Abstract
Plural combined processing machines perform various processes to workpieces W. The combined processing machines are arranged in a processing line according to a volume of products of the workpieces, operating time of the combined processing machines and a tact time to complete processing one of the workpieces. Each combined processing machine is determined to share one or more processes according to the volume of the products, the operating time and the tact time. The workpieces are transferred among the combined processing machines to be processed.
Claims9
A processing method of workpieces using plural combined processing machines, each of which selectively uses a forming tool, a heat treatment tool and a finishing tool to perform various processes to the workpieces in a predetermined sequence, comprising:
- an arrangement step to arrange the plural combined processing machines in a processing line according to a volume of products of the workpieces, operating time of the combined processing machines and a tact time to complete processing one of the workpieces;
- a process share determination step to determine if each combined processing machine will share one or more processes according to the amount of the products, the operating time and the tact time;
- and
- a share process step to share the processes according to a determined sequence by the process share determination step and to transfer the workpieces among the combined processing machines.
A processing method of workpieces using plural combined processing machines which selectively use a forming tool, a heat treatment tool and a finishing tool to perform various processes to the workpieces in a predetermined sequence, comprising:
- an arrangement step to arrange the plural combined processing machines in a processing line;
- a process share determination step to determine if each combined processing machine will share one or more processes according to a production of one of workpieces per unit time;
- and
- a share process step to share the processes according to a determined sequence by the process share determination step and to transfer the workpieces among the combined processing machines.
A processing method of a plural number of n workpieces using a plural number of N combined processing machines which selectively use a forming tool, a heat treatment tool and a finishing tool to perform various processes to the workpieces in predetermined sequence, comprising:
- an arrangement step to arrange N combined processing machines in a processing line;
- a calculation step to calculate a first processing time where each of N combined processing machines performs all processes to (n/N) workpieces and second processing times where N combined processing machines share the processes to process n workpieces;
- and
- a process step to process the workpieces according to a result of comparison of the first and second processing times;
- and
- wherein in the case that the first processing time is longer than the longest time among the second processing times of N combined processing machines, N combined processing machines share the processes to process n workpieces in the process step;
- and
- wherein in the case that the first processing time is shorter than the longest time among the second processing times of N combined processing machines, each of N combined processing machines performs all processes to (n/N) workpieces in the process step.
A processing method of a plural number of n workpieces using a plural number of N combined processing machines which selectively use a forming tool, a heat treatment tool and a finishing tool to perform various processes to the workpieces in a predetermined sequence, comprising:
- an arrangement step to arrange N combined processing machines in a processing line;
- a process mode setting step to set a first process mode where each of N combined processing machines performs all processes to (n/N) workpieces and a second process mode where N combined processing machines share the processes to process n workpieces;
- a calculation step to calculate a first processing time of the first process mode and second processing time of the second process mode according to the various processes of the workpieces;
- and
- a process step to process the workpieces according to a result of comparison of the first and second processing times.
Dependencies are inferred from the claim text.