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Selection method of manual method and automatic method for automobile welding production line

A welding production line, manual technology, applied in auxiliary devices, manufacturing tools, welding equipment, etc., can solve the problems of inaccuracy, unscientific, investment waste, etc.

Inactive Publication Date: 2019-08-06
FAW CAR CO LTD
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

There are many shortcomings such as unscientific, imprecise, and imprecise, which often result in waste of investment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The following is a specific embodiment of manual and automatic mode selection for a certain vehicle door cover assembly line.

[0027] The planned annual production capacity M of this model is 20,000 units per year. Calculate the production tempo p, p=250*16*60*60*90% / M=250*16*60*60*90% / 20000=648 sec / vehicle.

[0028] The total number of parts a to be assembled in the welded door cover assembly is 71, the average time t for each piece is 15 seconds, and the assembly processing time T2 is 4856 seconds. Calculate the total production time ST of the manual line, ST=a*t+T2=71*15+4856=5921 seconds; calculate the total time ZT of the automatic line production described in [0015], ZT=a*t=71*15= 1065 seconds.

[0029] Calculate the number of manual line workers R1, R1=2*ST / p=2*5921 / 648=2*9.13 people≈2*10=20 people; calculate the number of automatic line workers R2,

[0030] R2=2*ZT / p=2*1065 / 648=2*1.64≈2*2=4 people.

[0031] The annual cost X of a single labor is 80,000 RMB;...

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Abstract

Disclosed is a selection method of a manual method and an automatic method for an automobile welding production line. The method includes the following steps: determining direct investment D1 of a manual line; determining direct investment D2 of an automatic line; calculating production cost B1 of the manual line in an automobile model life cycle; calculating production cost B2 of the automatic line in the automobile model life cycle; calculating total cost C1 of the manual line; calculating total cost C2 of the automatic line; and comparing a total cost difference H between the manual line and the automatic line, when H<0, the manual line is selected for line building, and when H>0, the automatic line is selected for line building. The selection method carries out quantitative selection of a production method through detailed calculation formulas, and solves many problems of unscientific, unrigorous, inexact and the like caused by no systematic and precise calculation method and onlyrough evaluation based on experience or conventional models when a welding assembly line carries out selection of the manual and automatic lines.

Description

technical field [0001] The invention relates to a method for selecting a manual mode and an automatic mode in an automobile welding production line. It is suitable for manual and automatic selection of welding assembly lines such as body floor line, side wall line, main splicing line, door cover line, etc. Background technique [0002] Divided in the form of production operations, the production line process design scheme is divided into automatic lines and manual lines. The direct investment of the manual line is low, but the production costs such as labor are relatively high; the direct investment of the automatic line is relatively high, but the production costs such as labor are relatively low. The direct investment difference between the two has a constant attribute in the model project, and the production cost difference between the two increases with the increase of the total output of the model. When the total output reaches a certain intermediate value, the total a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/00
CPCB23K37/00
Inventor 冯玉涛赵卯李友力崔海滨李永强张春雷
Owner FAW CAR CO LTD
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