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Engine piston weight grouping mistake proofing method and system

An anti-error system and engine technology, applied in sorting, metal processing equipment, metal processing, etc., can solve problems such as the unavoidable problem of wrong installation, and achieve the effect of eliminating quality problems in installation and adjustment

Pending Publication Date: 2022-02-01
FAW JIEFANG AUTOMOTIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if the pistons are correctly grouped during the manufacturing process, the problem of misfitting during the assembly stage is still inevitable

Method used

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  • Engine piston weight grouping mistake proofing method and system
  • Engine piston weight grouping mistake proofing method and system
  • Engine piston weight grouping mistake proofing method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] figure 1 It is a flowchart of an error-proofing method for engine piston weight grouping provided by Embodiment 1 of the present invention, which can be applied to the assembly process of engine pistons. The method is primarily performed by an error-proofing system for grouping engine piston weights, which system includes one or more scanning terminal devices, and also includes at least one PLC system. The scanning terminal device is a device that can scan the QR code and obtain the information in it, and it can interact with the PLC system through wired or wireless communication. The PLC system is an automatic control system composed of programmable logic controllers, which is used to manage the operation of equipment in the factory assembly line.

[0022] The method specifically includes the following steps:

[0023] S110. The PLC system acquires weight grouping information of at least two pistons of a single engine;

[0024] Wherein, the common number of cylinders...

Embodiment 2

[0040] figure 2 It is a flowchart of an error-proofing method for engine piston weight grouping provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiments, such as figure 2 As shown, the method provided in Embodiment 2 of the present invention further increases the operation of adding the weight grouping information code to the quality traceability two-dimensional code, and the method includes:

[0041] S210. The PLC system performs weight grouping on the pistons according to the weight grouping rules;

[0042] Among them, the weight grouping rule is a rule for grouping the actual weighing weight of the pistons according to the tolerance range of the piston weight grouping in the product design. According to this rule, different pistons can be divided into different groups, and the weight error of pistons in the same group is small, which will not cause engine debugging failure.

[0043] S220, engraving e...

Embodiment 3

[0055] image 3 Shown is a structural schematic diagram of an anti-error system for engine piston weight grouping provided by an embodiment of the present invention. Such as image 3 As shown, the system includes a PLC system 310, an inscription device 320 and a scanning terminal device 330. This embodiment can be applicable to the assembly operation factory of engine piston, and the specific structure of the error prevention system of this engine piston weight grouping comprises:

[0056] PLC system 310, comprising:

[0057] Grouping information obtaining module 311, for obtaining the weight grouping information of at least two pistons of a single engine;

[0058] Consistency judging module 312, configured to judge the consistency of each of the weight grouping information;

[0059] The information prompting module 313 performs information prompting according to the judgment result.

[0060] Wherein, the PLC system 310 also includes:

[0061] The weight grouping module ...

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PUM

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Abstract

The embodiment of the invention discloses an engine piston weight grouping mistake proofing method and system. The method comprises the steps: acquiring weight grouping information of at least two pistons of a single engine; and judging the consistency of each piece of weight grouping information, and carrying out information prompt according to a judgment result. According to the technical scheme provided by the embodiment of the invention, in the link process of assembling the piston to the engine, whether the weight of the whole set of piston of the single engine is consistent or not can be accurately identified, and the result is prompted, so that correct operation can be conveniently executed in the subsequent process according to the prompt information, and the problem of assembly and adjustment quality of the engine caused by wrong piston grouping is radically eradicated.

Description

technical field [0001] Embodiments of the present invention relate to engine assembly technology, and in particular to a method and system for preventing mistakes in weight grouping of engine pistons. Background technique [0002] In the manufacturing process of engine pistons, in order to meet the needs of mass production economy and process conditions in the factory, it is often necessary to set a wide tolerance range for the weight of the pistons, and then achieve the basic weight of the pistons installed in the same internal combustion engine through weight grouping. Proximity, control the inertial load balance of the engine crank linkage mechanism, ensure the smooth operation of the internal combustion engine, improve its balance and the ride comfort and comfort of the vehicle after loading. Therefore, when the engine piston is assembled on the engine, it is necessary to ensure that the piston weight grouping of each cylinder of the engine is consistent. [0003] In th...

Claims

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Application Information

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IPC IPC(8): B23P19/00B07C5/28
CPCB23P19/00B07C5/28
Inventor 陈飞金骏史定华陈黎君
Owner FAW JIEFANG AUTOMOTIVE CO