Sequence of	Description of the working procedure	Battery pack assembly type	Sleeve number	Torsion moment	Torsion angle
						1	Lower shell scanning code	100000861
2	Code is swept to bolt	S14050120
						3	Code is swept to bolt	S14050160
4	Bottom guard plate screwing down		null/null	5
						...	...	...	...	...	...

Specifically, the assembly operation control unit controls the assembly equipment of the current assembly station to assemble the parts to be assembled according to the assembly work step operation, and the automatic assembly station completes assembly of all the parts at one time.

For example, if the current assembly station is used for installing a high-voltage plug-in, at this time, the name plate is scanned first to obtain the model of the battery pack, then a new part to be assembled (such as an explosion-proof valve and a bolt) and the part to be assembled and the name plate assembled on the previous station are scanned to obtain the model of the part to be assembled, the battery pack production management system sends corresponding assembly step operation to the equipment in the current assembly station, if the next operation (I NT bit +1 allowing the PLC to work) and the tightening program set number are issued to the PLC (the battery pack production management system controls the equipment in the station through the PLC), the equipment in the current assembly station executes corresponding assembly step operation to carry out assembly operation on the part to be assembled.

Specifically, after the assembly equipment in the current assembly station completes the assembly operation corresponding to the assembly equipment, a signal of completing the assembly operation is fed back to the battery pack production management system, the battery pack production management system sends a control instruction to the automatic handling equipment through the first automatic handling equipment control unit after determining that all the equipment in the current assembly station completes the assembly operation, and the automatic handling equipment transports the parts assembled in the current assembly station to the next station according to the control instruction.

In the embodiment of the invention, after the equipment at the current assembling station is detected to finish the assembling operation, a control instruction is sent to the automatic conveying equipment to control the automatic conveying equipment to stop at the next station for continuously assembling, so that the flexibility of the assembling process of the battery pack can be enhanced, the assembling/testing is carried out at the next station after the assembling of one station is finished, the problem of the assembling failure of the battery pack caused by the omission of parts to be assembled is solved, and the assembling power in the assembling process of the battery pack can be improved.

Specifically, the station can assemble parts to be assembled according to preset assembly work step operations, and can also realize manual assembly, at the moment, the parts to be assembled still need to be scanned, but the manually set assembly work step operations need to be acquired, and then the parts to be assembled are assembled according to the manually set assembly work step operations.

In the embodiment of the invention, the assembly work step operations of each assembly station can be different, and the assembly work step operations are executed according to the step instruction. The assembly process step operation can be flexibly configured, each process step can define the content by user, and the program flexibility can be led into the station by one key, so that a multi-production line and multi-product business mode is supported.

Still further, thetest module 20 includes:

The production management system in the embodiment of the invention can control the assembly station to assemble the battery pack, and also needs to control the test station with the test function to test the battery pack assembly assembled by the assembly station. For example, the currently assembled parts may be tested after the assembly of one device is completed, or the whole battery pack may be tested after the assembly of all the parts is completed, which is not limited in this disclosure. The information of the battery pack assembly includes a battery pack SN and a battery type.

Illustratively, for example, in the automatic test of the air tightness of the whole package, the test equipment in the station acquires the battery package SN and the battery type (96W/82W), sends the SN and the battery package SN to the battery package production management system for verification, verifies the battery package production management system and returns verification passing information and test program number information, and notifies the test equipment to start testing, the test equipment acquires corresponding test process steps according to the test program number information, the test equipment feeds back a test result (OK/NG) to the PLC after the test is completed and feeds back the test result to the battery package production management system, the battery package production management system receives air-tight equipment test completion data, sends a completion signal to the PLC, and controls the automatic handling equipment to stop the tested battery package assembly to the next station.

Further, theverification module 30 includes:

In the embodiment of the invention, the verification functions used by different stations are different, the system can achieve automatic configuration, and the verification objects of each station may be different. In order to better prevent errors and fool, the battery pack production management system establishes a configured checking interception function, and both a checking method and an interception form can be flexibly configured, so that the traditional quality door mode is broken, and the full-station quality door is realized. Aiming at the full-station quality door, the battery pack production management system establishes an automatic induction learning function and recommends an interception function to guide the operation of a user.

Further, thedevice management module 40 includes:

the equipment maintenance unit is used for acquiring fault information of equipment (including assembly equipment and test equipment) and generating a maintenance work order according to the fault information; the system is also used for recording the maintenance history of the equipment and establishing a maintenance knowledge base so as to recommend a corresponding maintenance scheme when the equipment is detected to be out of order;

Specifically, the equipment maintenance unit automatically collects the equipment fault, automatically/manually generates a maintenance work order, and sends the maintenance work order to a terminal (such as a mobile phone or a computer) of a corresponding maintenance worker to prompt the maintenance worker to maintain the equipment, and if the fault does not respond within a certain time, reports the fault to a superior supervisor of the maintenance worker; and giving a prompt alarm for the overdue and non-maintained equipment. The equipment maintenance unit records maintenance history, establishes a maintenance knowledge base, and when maintenance personnel maintain, the maintenance personnel can check related maintenance records according to information such as fault types, reasons and phenomena, the equipment maintenance unit can recommend alternative maintenance schemes, alternative spare parts and the like, and the maintenance personnel can check spare part inventory.

Specifically, the equipment maintenance unit carries out maintenance prompt according to maintenance cycle, use times or equipment abnormal information, can acquire equipment operation parameters, and carries out predictive maintenance prompt on equipment according to the equipment operation parameters.

Further, thedevice management module 40 further includes:

Specifically, the equipment ledger is a main basis for mastering the equipment asset condition of the enterprise and reflecting the owned quantity, equipment distribution and change conditions of various types of equipment of the enterprise, and the ledger establishing unit is used for generating an equipment list which needs to be recorded and managed by the battery pack production management system, so that the battery pack production management system can manage conveniently.

Specifically, the device point inspection unit is configured to perform data maintenance on a device point inspection task, set a reminding period of a device to be subjected to point inspection and a corresponding responsible person, and the device to be subjected to point inspection and the point inspection item can support functions of adding, deleting, changing and querying; the point checklist generated by the device point checkunit can support preview, export and print functions. Referring to fig. 2, fig. 2 is a work flow chart of performing spot inspection on equipment in an equipment management module according to an embodiment of the present invention, where first, an equipment ledger needs to be maintained in advance (that is, parameter configuration is performed), an equipment spot inspection maintenance item is maintained, then a spot inspection maintenance task is generated at regular time, a maintenance person inquires spot inspection maintenance task information, performs spot inspection on the equipment according to the spot inspection maintenance task information, and enters a spot inspection maintenance result after the spot inspection is completed, in this process, an equipment spot inspection unit generates a spot inspection list, and the maintenance person can check the spot inspection maintenance result.

Further, thedevice management module 40 further includes:

Specifically, the shutdown analysis unit distributes the reasons (such as mechanical failure and overhigh temperature) of the shutdown of the equipment to shutdown events, and manually distinguishes the equipment states according to the actual running condition of the equipment; the shutdown analysis unit supports statistics of automatically acquired equipment shutdown records according to regions, accident types and the like to form an analysis curve, and maintenance personnel can conveniently check the analysis curve.

For example, referring to fig. 3, the shutdown analysis unit controls the PLC to collect shutdown information of the device, collects the shutdown information analyzed by the maintenance personnel, determines whether the shutdown information needs to be combined with the previous shutdown or split the reason of the shutdown, and then needs to maintain (i.e., configure parameters) the shutdown data, and records the shutdown information into the system as an analysis material for the shutdown of the device.

Further, thedevice management module 40 further includes a device status code configuration unit, configured to configure a device status code for the device status, where the device status code is used to indicate an operating status of the device (e.g., scheduled shutdown, abnormal shutdown).

Further, thedevice management module 40 further includes a device classification unit, where the device classification unit is configured to classify the assembly devices according to assembly work steps performed by the assembly devices, and classify the test devices according to test work steps performed by the test devices.

For example, when the apparatuses at the stations are apparatuses for performing tightening operations, the apparatuses for performing tightening operations are classified into the same category.

In the embodiment of the invention, the integration of all the devices can be completed in a standard interconnection mode by classifying and summarizing the complex integration capability of the automation devices, and meanwhile, the interactive logic between the production operation management system and the automation device program is standardized, so that the programming complexity is reduced, and the program maintenance difficulty is reduced.

Further, theequipment management module 40 further comprises a computing unit for computing equipment integrated efficiency (OEE), availability, Overall Performance Ratio (OPR) and quality yield.

Specifically, the equipment integrated efficiency (OEE) is a ratio representing the actual production capacity relative to the theoretical capacity, and is calculated by acquiring the following three data: cycle, planned production time, number of good products produced during a period of time.

Period (CT): the longest period of the production line is 1-10 s.

Possible production time (MP) being one shift time

Planned production time (PP) — possible production time of the equipment-planned downtime, e.g., 1-10 h;

actual production time-PP-abnormal downtime

The OEE of each station needs to be calculated as a reference, one station is taken as an OEE calculation node of the whole workshop, and the following formula is satisfied:

specifically, availability is the total available time ratio of machines to projected production time, which may be defined as a schedule or projected downtime such as scheduled maintenance, and is calculated to satisfy the following equation:

specifically, the Overall Performance Ratio (OPR) is the ratio of the total number of products produced by the machine in the time of availability to the number of products produced in the time of actual usefulness, satisfying the following formula:

specifically, the quality yield is a ratio of the total number of good products produced to the total number of products produced, and satisfies the following formula:

further, referring to fig. 4, the battery pack production management system further includes a jobattribute classification module 50, where the job attributeclassification module 50 is configured to:

and classifying the operation attribute.

Specifically, the job attributes are classified according to the job attributes of each station, and table 2 can be referred to. The programs for the same category may be largely identical. In the embodiment of the invention, by classifying the operation attributes, the interactive logic between the production operation management system and the station program can be standardized, the programming complexity is reduced, and the program maintenance difficulty is reduced.

TABLE 2 Job Attribute Classification

Species of	Name of article	Name of label	Categories
				Control bit	Data receiving Ready	Tag0	Bool
	Data is ready	Tag1	Bool
					Read completion	Tag2	Bool
Parameter classes	Step numbering	Tag10	Int
					Battery pack SN	Tag11	String 24
	Station number	Tag12	String
					Work step number	Tag13	Int
	Weight of weighing	Tag14	Int
					The tightening is completed	Tag15	Bool
	Device test completion	Tag16	Bool
					Completion of visual inspection	Tag17	Bool

Further, referring to fig. 4, the battery pack production management system further includes amaintenance module 60, where themaintenance module 60 is configured to:

carrying out classified maintenance on a preset process route;

and maintaining the preset process step information.

Illustratively, the process route is used to represent the quota of standard man-hours of the enterprise product in one processing route (processing sequence) and in each process of the enterprise, and is a kind of plan management file. The technical file is mainly used for describing the operation sequence of material processing and part assembly, and is a sequence of a plurality of working procedures. For example, a flow line is a process line, and the flow line includes a plurality of processes.

Specifically, the process route is maintained according to a preset level, and the priority of the level is ranked as follows: factories, workshops, production lines, areas, stations, equipment. The maintenance process comprises the following steps: and performing parameter configuration according to parameters input by a user in a maintenance window provided by the battery pack production management system, wherein the maintenance window is a data entry interface. The step information is a process step executed by a station, and the step information maintenance process is the same as the process route maintenance process, and is not repeated here. Further, in the process of maintaining the step information, the maintenance window may perform maintenance on a single station or in batches, and if a plurality of stations are selected in the maintenance window, only the configuration information of one station may be configured, and the configuration information is automatically synchronized to the corresponding stations after the configuration is completed.

In the embodiment of the invention, the configuration parameters of the stations can be changed at any time by maintaining the process route and the process step information, the multi-product line and multi-product service mode can be supported, and the process adaptability in the battery pack assembling process can be improved.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims

1. A battery pack production management system, comprising:

2. The battery pack production management system of claim 1, wherein the assembly module comprises:

3. The battery pack production management system of claim 2, wherein the assembly module further comprises:

then, the scan control unit is further configured to:

the assembly process step operation acquisition unit is configured to:

4. The battery pack production management system of claim 1, wherein the test module comprises:

5. The battery pack production management system according to claim 1, wherein the verification module includes:

6. The battery pack production management system of claim 1, wherein the device management module comprises:

7. The battery pack production management system of claim 6, wherein the device management module further comprises:

8. The battery pack production management system of claim 6, wherein the device management module further comprises:

9. The battery pack production management system according to claim 1, further comprising a job attribute classification module for:

and classifying the operation attribute.

10. The battery pack production management system according to claim 1, further comprising a maintenance module for:

carrying out classified maintenance on a preset process route;

and maintaining the preset process step information.