Part matching performance optimization method and system

An optimization method and part technology, applied in manufacturing computing systems, instruments, data processing applications, etc., can solve problems such as uneven performance of parts, and achieve the effects of high assembly accuracy, reliable assembly methods, and traceability management.

Active Publication Date: 2018-09-04
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A batch of qualified parts, although the fit size is within the required tolerance range, but because the part size fluctuates within the tolerance range, this will cause a batch of parts to have certain inequalities in performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] This method is applicable to the matching of parts, but it is not only applicable to the matching of shafts and holes. For the convenience of discussion, the problem of matching shafts and holes is used as an example to illustrate. 1. Carry out homogeneity grouping and non-uniformity grouping for shafts and holes according to the above grouping method, and form the following objects to be matched.

[0054] Hole grouping result:

[0055] [P1,P2,P3,P4] and faults [Tu(1), Tu(2), Tu(3), Tu(4)]

[0056] The number of parts in each large group and fault inner hole is calculated as:

[0057] [N(P1),N(P2),N(P3),N(P4)]

[0058] [N(Tu 1),N(Tu 2),N(Tu 3),N(Tu 4)]

[0059] Axis grouped results:

[0060] [p1,p2,p3,p4] and faults [tu(1),tu(2),tu(3),tu(4)]

[0061] The number of shaft parts in each large group and fault is calculated separately as:

[0062] [N(p1),N(p2),N(p3),N(p4)]

[0063] [N(tu1),N(tu2),N(tu3),N(tu4)]

[0064] 2. Coordination of uneven grouping

[0065] Ma...

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PUM

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Abstract

The invention discloses a part matching performance optimization method and system. The method comprises the steps of detection system testing, size information marking, part classification storage, grouping assembly and the like; and required devices include a measurement unit, a part marking unit, a size information processing unit, a scanning classification unit and an assembly unit. Size information of parts is obtained by measurement, and the size information is marked on parts; the size information processing unit processes part information of a batch measured by the measurement unit, and divides the parts into multiple groups; the scanning classification unit judges the number of part groups by scanning marks on the parts, and then classifies the parts through a classification mechanism; and the assembly unit assembles the parts of the corresponding groups. According to innovation points, on the premise of qualified random matching, the stability of batch part matching performance is improved through the method; and the method is a new method for improving batch performance of products.

Description

technical field [0001] The invention relates to a matching optimization method for batch parts with stable performance, in particular to a method for optimizing matching performance of parts used in an industrial automatic assembly system. Background technique [0002] Commonly used matching methods include complete interchange method, incomplete interchange method, group assembly method, repair method, and adjustment method. The complete interchange method is suitable for automatic assembly lines and requires less manual operations, but for more precise assembly requirements, the processing accuracy of parts is also very high. The incomplete interchange method can reduce the machining accuracy. Since the size of the parts conforms to the normal distribution, it is rare to get both ends of the tolerance zone at the same time, and most of them are distributed in the middle of the tolerance zone. At this time, the matching relationship is better. When the processing technolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/04
CPCG06Q10/04G06Q10/0631G06Q50/04Y02P90/30
Inventor 楼佩煌钱晓明马群
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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