CN109886367B

CN109886367B - Method for realizing tracing of minimum packaging box of small part

Info

Publication number: CN109886367B
Application number: CN201910029839.0A
Authority: CN
Inventors: 刘友平
Original assignee: Comau LLC
Current assignee: Comau LLC
Priority date: 2019-01-10
Filing date: 2019-01-10
Publication date: 2022-02-22
Anticipated expiration: 2039-01-10
Also published as: CN109886367A

Abstract

The invention provides a method for realizing the tracing of a minimum packaging box of small parts. The invention provides the small part minimum packaging box tracing method which can realize flexible production intelligent control and is simple to operate, so that the purpose of tracing the small part minimum packaging box is achieved under the condition of not increasing the working complexity. According to the small part minimum packaging box tracing method, the purpose of small part minimum packaging box tracing which is simple to operate is achieved by utilizing the minimum packaging box flexible production control parameters, the production control logic and the data analysis technology. The invention only needs to add a parameter formula and a data analysis module for minimum packing box operation in the execution system of the production process of the original manufacturing enterprise and add a code scanning gun and a logic control module in a station with the minimum packing requirement, thereby having the advantage of easy popularization and implementation.

Description

Method for realizing tracing of minimum packaging box of small part

Technical Field

The invention relates to a method for tracing a minimum packing box of a small part, which is suitable for an engine and gearbox assembly line and belongs to the technical field of production line manufacturing execution systems.

Background

In the final assembly process, for small parts, the realization of part tracing is a very difficult matter, even impossible, and the main difficulties are as follows: (1) the small parts have no traceable bar code information and cannot be traced; (2) even if the tracing information exists, the code scanning is carried out on each small part, the complexity of work is increased, and the beat is increased. Due to the difficulties, the general assembly line only supports the tracing of key parts, but with the progress of society, the requirement of human beings on quality is higher and higher, so that the tracing of the key parts is required, and the tracing of small parts is also required. Therefore, finding an efficient way to trace small parts in an existing production line manufacturing execution system (AMES) is one way to improve quality. The small parts are usually placed on the material frame through the packaging boxes, and each packaging box is provided with two-dimensional code information which comprises information such as manufacturers, production batches, production dates and the like, so that the manufacturers and the production batches of materials can be traced through the two-dimensional code information of the minimum packaging box, and the method has great significance to quality departments. The requirement for tracing the minimum packaging box of the small parts is different from the requirement for tracing the traditional batch, and the method not only requires flexible production control on the operation of the minimum packaging box, but also can adapt to the whole-line station; but also requires simple operation without adding complicated work content.

Disclosure of Invention

The purpose of the invention is: realize the minimum packing carton of smallclothes and trace back.

In order to achieve the above object, the technical solution of the present invention is to provide a method for tracing a minimum package box of a small part, which is characterized in that a minimum package box operation type ID and a minimum package box operation control parameter are added to an existing manufacturing enterprise production process execution system, the minimum package box operation control parameter includes a magazine number, an installation number, a package number, a two-dimensional code length, a standard two-dimensional code wildcard character, and a material ID, a readable and writable storage medium for storing the production control parameter is provided on each tray, when the tray reaches a station, an operation type ID stored in the readable and writable storage medium on the current tray is acquired, and if the acquired operation type ID is the minimum package box operation type ID, a minimum package control logic is entered, and the minimum package control logic includes the following steps:

step 1, acquiring a material rack number stored in a readable and writable storage medium on a current tray, if the currently acquired material rack number is the same as the material rack number acquired last time, determining that the material rack number is the same as the last product, entering step 2, and if the material rack number is not the same, determining that the material rack number is changed, and entering step 3;

step 2, obtaining the installation number stored in the readable storage medium on the current tray, calculating the value of the current packaging number-installation number corresponding to the current material frame number, if the value is greater than or equal to 0, not performing scanning operation, directly recording the last scanning result as the current scanning result, writing the scanning result into the readable and writable storage medium, entering step 4, and if the value of the current packaging number-installation number is less than 0, entering step 3;

step 3, scanning the minimum-packaged two-dimensional codes on the material racks one by one from an operator to the material rack corresponding to the material rack number, judging whether the length of the scanning content of the current minimum package is equal to the length of the two-dimensional codes stored in the readable and writable storage medium on the current tray during each scanning, judging whether the scanning content of the current minimum package is equal to the wildcard character of the standard two-dimensional codes stored in the readable and writable storage medium on the current tray, recording the current scanning content only when the scanning content of the current minimum package is equal to the wildcard character of the standard two-dimensional codes stored in the readable and writable storage medium on the current tray, recording all the scanning content, writing the current scanning content into the readable and writable storage medium, assigning the recorded packaging number of all the minimum packages to the current packaging number, and entering step 4;

and 4, updating the current packaging quantity to the current packaging quantity-installation quantity obtained in the last step.

Preferably, if the updated current package number in step 4 is not consistent with the actual package number, calibration is performed through a human-computer interface.

The invention provides the small part minimum packaging box tracing method which can realize flexible production intelligent control and is simple to operate, so that the purpose of tracing the small part minimum packaging box is achieved under the condition of not increasing the working complexity. According to the small part minimum packaging box tracing method, the purpose of small part minimum packaging box tracing which is simple to operate is achieved by utilizing the minimum packaging box flexible production control parameters, the production control logic and the data analysis technology. The invention only needs to add a parameter formula and a data analysis module for minimum packing box operation in the execution system of the production process of the original manufacturing enterprise and add a code scanning gun and a logic control module in a station with the minimum packing requirement, thereby having the advantage of easy popularization and implementation.

Drawings

FIG. 1 is a flow chart of the present invention.

Detailed Description

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

The invention adopts the following technical scheme: the small part minimum packing box tracing method designs the small part minimum packing box operation type ID and control parameters, and realizes flexible production control of small part minimum packing box operation; a small part minimum packing box control logic module is designed, and the aim of simple operation is fulfilled by code scanning error prevention and automatic trigger scanning function; and a minimum packaging box analysis module is added, so that the function of tracing the final assembly product and the minimum packaging box mutually is realized.

The minor part minimum pack operation type ID is an identification of an operation type, for example, ID 10, which indicates a minimum pack operation; ID 2 represents a tightening operation.

The small part minimum packing box operation type control parameter is a parameter for controlling the minimum packing box operation, and comprises a material rack number (whether the type is changed or not is judged through the material rack number), an installation number (a basis for deducting the number), a packing number (a trigger scanning condition), a two-dimension code length (a two-dimension code comparison length rule), a standard two-dimension code wildcard character (a two-dimension code comparison content rule) and a material ID (an index for a material).

The automatic triggering scanning means that when the final assembly product reaches a station, whether the parameter of the material frame number is the same as the last time is judged, if the parameter of the material frame number is the same as the last time, the final assembly product is considered to be the same as the last product, and if the parameter of the material frame number is different from the last product, the final assembly product is considered to be changed. Judging whether the current packaging quantity is less than 0 or not by the same model, if the current packaging quantity is more than or equal to 0, not performing scanning work, directly recording the scanning result of the last time, and if the current packaging quantity is less than 0, performing scanning work, recording the scanning content, and assigning the packaging quantity parameter to the current packaging quantity. And after the station is finished, subtracting the installation quantity from the current packaging quantity of the current rack number to calculate the current packaging quantity of the rack when the final assembly product flows out of the station. And (3) triggering scanning work when the model is changed, scanning the minimum packaging information of the corresponding material rack by an operator according to the prompted material rack number, recording, and calculating the current packaging quantity of the material rack after the station work is completed. When the actual number of packages does not correspond to the current number of packages of the system, a calibration can be performed by means of an HMI (human machine interface).

The mutual tracing of the final assembly product and the minimum packaging box means that the minimum packaging box information can be traced through the final assembly product number, and the final assembly product information can also be traced through the minimum packaging box information. .

Taking an engine assembly line as an example, the invention is further explained as follows:

design minimum pack operation ID and control parameters

The increment operation ID is 10, which represents the smallest packing operation box, and the corresponding name is P _ Material. Adding minimum packing box operation control parameters: the material rack number (whether the material rack number is used for changing the model or not is judged through the material rack number), the installation number (the basis for deducting the number), the packaging number (the scanning triggering condition), the two-dimension code length (the two-dimension code comparison length rule), the standard two-dimension code wildcard character (the two-dimension code comparison content rule) and the material ID (the index used for the material).

Second, configuring the formula of minimum packing box operation according to machine type

The 1051 model station OP160 (rear sealing flange), OP330 (oil-gas separator) has a requirement for minimum pack operation, and therefore minimum pack operation is configured at OP160 and OP330, respectively.

Thirdly, logical control of hardware installation of code scanning gun and operation of adding minimum packing box

If the station has a code scanning gun, the station does not need to be installed, in this case, the OP330 has a code scanning gun, and only the code scanning gun of the OP160 station needs to be installed; and compiling a PLC logic control function module according to the minimum package control parameter and the service logic, wherein the specific control logic is shown in figure 1.

Fourthly, actual production control

The 1051 model is put into production, and the RFID (in the embodiment, the RFID is used for storing the production control parameters, but the invention does not limit the way for storing the production control parameters) on each tray carries the control parameters of the 1051 model. When the tray reaches OP160 and OP330 stations, the PLC performs logic control according to production control parameters to guide an operator to perform minimum package box scanning.

Fifth, effect of implementation

An operator scans corresponding material frame numbers according to scanning information prompted by the HMI, only one time of scanning is needed for one box of parts under the condition of no model change, and the scanning is needed once when the model change is carried out, so that the workload can be accepted by the operator; the minimum packing box information is automatically acquired to an offline station through RFID; in the minimum packing box analysis module, the information of the minimum packing box can be traced back through the number of the engine assembly, and meanwhile, the related information of the engine assembly can be traced back through the number of the minimum packing box.

Claims

1. A method for realizing small part minimum packing box tracing is characterized in that a minimum packing box operation type ID and a minimum packing box operation control parameter are added in an execution system in the production process of an existing manufacturing enterprise, the minimum packing box operation control parameter comprises a material frame number, an installation number, a packing number, a two-dimension code length, a standard two-dimension code wildcard character and a material ID, a readable and writable storage medium used for storing the production control parameter is arranged on each tray, after the tray reaches a station position, an operation type ID stored in the readable and writable storage medium on the current tray is obtained, if the obtained operation type ID is the minimum packing box operation type ID, a minimum packing control logic is entered, and the minimum packing control logic comprises the following steps:

2. The method for realizing the minimum packaging box tracing of the small parts as claimed in claim 1, wherein the current packaging quantity updated in step 4 is calibrated through a human-machine interface if the current packaging quantity is not consistent with the actual packaging quantity.