CN-122022262-A - Multi-vehicle type mixed line production system and method for automobile parts

CN122022262ACN 122022262 ACN122022262 ACN 122022262ACN-122022262-A

Abstract

The application provides a multi-vehicle type mixed line production system and a method for automobile parts, belonging to the technical field of automobile manufacture, wherein the system comprises a programmable processing unit, a processing unit and a processing unit, wherein the programmable processing unit is used for processing materials according to a production formula so as to form parts corresponding to different vehicle types; the material caching and sorting device comprises an assembly caching station, a blanking station and a sampling inspection station, wherein the assembly caching station is used for caching processed parts, the blanking station is used for unloading qualified parts, the sampling inspection station is used for off-line inspection and wire returning of the parts, the material handling device is used for handling materials among the stations, the central control unit is connected with the material caching and sorting device, the material handling device and the programmable processing units, and the central control unit is used for driving the handling device and the processing units to realize multi-vehicle mixed wire production, dynamic scheduling and sampling inspection wire returning by creating and updating production data records in real time along with the circulation of each material individual. The application realizes the mixed line production of multiple vehicle types, improves the production flexibility and efficiency and reduces the production cost.

Inventors

YANG JIAN
SUN JIANHONG
MA YONG
Huai Qili
LI MIN
CHAI JIAWEI
XU DEBING
HAN JIAQING

Assignees

济南二机床集团有限公司
济南济二数控机床有限公司

Dates

Publication Date: 20260512
Application Date: 20251229

Claims (10)

1. A multi-vehicle hybrid production system for automotive components, comprising: the at least two programmable processing units are used for processing materials according to different production formulas so as to form parts corresponding to different vehicle types; The material caching and sorting device comprises at least one assembly caching station, at least one blanking station and a spot check station, wherein the assembly caching station is used for caching processed parts from the programmable processing unit, the blanking station is used for discharging qualified parts, and the spot check station is used for off-line checking and wire returning of the parts; a material handling device for handling material between the programmable processing unit and each station; the central control unit is in communication connection with the material caching and sorting device, the material handling device and the programmable processing units; The central control unit is configured to execute the following logic: binding unique identification information for each material individual, and creating a corresponding production data record; Distributing a target vehicle type machining program for each material individual according to a predefined vehicle type formula, and scheduling the material handling device to convey the material individual to a selected programmable machining unit; Dynamically updating production data records corresponding to the material individuals in response to each change of the physical positions of the material individuals so as to reflect the current process state, the position information and the vehicle type information in real time; Scheduling the material handling device to transfer the individual materials from the programmable processing unit to the material buffering and sorting device based on the real-time production data record of the individual materials; According to a preset rule or an external instruction, based on the final production data record of the material unit, the material buffering and sorting device is controlled to convey qualified parts to corresponding blanking stations in a classified mode, or specified parts are conveyed to the sampling station, and the sampled qualified parts can be re-connected to a production flow and guided to the corresponding blanking stations.
2. The multi-vehicle hybrid production system of claim 1, wherein the programmable processing unit employs a numerically controlled processing center; the material handling device comprises a feeding handling robot and a discharging handling robot; the system also comprises a feeding station arranged at the line head of the production line; the feeding station, the numerical control machining center and the material circulation direction along the production line are sequentially arranged, and the sampling inspection station and the blanking station are arranged at the downstream of the assembly buffer station; The feeding and carrying robot is arranged at the downstream of the feeding station and is used for grabbing a blank from the feeding station and carrying the blank to any numerical control machining center; the blanking transfer robot is arranged at the downstream of the numerical control machining center and used for moving out the machined part from the numerical control center and transferring the part to the assembly buffer station; the sampling inspection station and the at least one blanking station are arranged in the tail area of the production line.
3. The multi-vehicle hybrid production system of claim 1, further comprising a human-machine interface communicatively coupled to the central control unit; A fixed code scanner is arranged on an end effector of the feeding and carrying robot and used for reading a unique part code arranged on a blank as unique identification information; The central control unit is connected with the fixed code scanner and executes the following code scanning logic: If the code scanning is successful and the part code verification is passed, executing a grabbing action and creating a production data record; If the code scanning fails, triggering an alarm, allowing the part codes to be manually input through a human-computer interaction interface, and creating a production data record based on the manually input part codes after the manual input is completed; the man-machine interaction interface is also used for providing interaction functions of vehicle type formula management, production control, real-time monitoring of part states and spot check line returning management.
4. A method for producing a multi-vehicle hybrid line of automotive parts based on the system of any one of claims 1 to 3, characterized by comprising the steps of: S1, setting a vehicle type formula containing at least two vehicle type processing parameters through a central control unit; S2, binding unique identification information for each material unit entering the production line, and creating corresponding production data records in a central control unit; S3, the central control unit distributes target programmable processing units and vehicle type processing programs for the individual materials according to the vehicle type formula and the states of the programmable processing units, and controls the material handling device to execute feeding processing; S4, after the processing of the individual materials is completed, the central control unit dispatches the material handling device to transfer the individual materials to the next target station according to the production data record and the available state of the downstream station in the material buffering and sorting device, and synchronously updates the production data record; S5, for the parts reaching the buffer area, the central control unit controls the sorting device to sort and convey the parts to the corresponding blanking stations based on the vehicle type information in the production data record, or transfers the parts to the sampling inspection stations according to the sampling inspection instruction; S6, for the qualified parts inspected at the spot inspection station, the central control unit searches complete production data records according to the unique identification information, controls the carrying device to re-connect the parts into the production line, and then sorts and transfers the parts to the corresponding blanking station according to the vehicle type information.
5. The method for producing the multi-vehicle type hybrid line for the automobile parts according to claim 4, wherein the step S1 comprises the following specific steps: s11, respectively setting a vehicle model and a planned output of planned machining on at least two programmable machining units and a blanking station on a production line through a man-machine interaction interface; s12, checking the set vehicle model and the set planned production through a production setting checking instruction under a man-machine interaction interface: judging whether the vehicle model set by the same programmable processing unit or the blanking station is one of the vehicle model formulas supported by the system, and judging whether logic conflict exists; if both are satisfied, go to step S13; if the two items are not satisfied, generating an alarm prompt on a human-computer interaction interface, preventing the setting from being effective, and ending; S13, enabling the central control unit to enable the setting of the planned processed vehicle type and the planned output to be effective; s14, judging a production mode according to the number of effective vehicle types: if the effective vehicle type is unique, entering a single vehicle type production mode; and if more than one effective vehicle type is available, starting a mixed line production mode.
6. The method for producing the multi-vehicle type hybrid line for the automobile parts according to claim 4, wherein the specific steps in the step S2 are as follows: S21, controlling the feeding and carrying robot to run to a piece grabbing position, and starting a fixed code scanner on an end effector of the feeding and carrying robot to read part codes of the blank; S22, the central control unit judges whether the part codes are successfully read and checked: if yes, the part code is used as unique identification information, an initial production data record is created and stored in a first data area, and then grabbing is executed; If not, triggering an audible and visual alarm and prompting on a man-machine interaction interface, acquiring a correct part code manually input through the man-machine interaction interface, and then creating an initial production data record and storing the initial production data record in a first data area based on the part code manually input.
7. The method according to claim 4, wherein the step S3 of allocating the target programmable processing unit and the model processing program to the individual material according to the model recipe and the status of each programmable processing unit by the central control unit comprises the following steps: S31, the central control unit maintains a list containing all programmable processing unit states in real time, wherein the programmable processing unit states comprise idle, processing neutral and fault; s32, when an individual material to be processed exists, the central control unit inquires the list and selects a programmable processing unit with an idle first state as a target processing unit; S33, generating a carrying instruction containing the position information of the target unit, and dispatching the feeding carrying robot to carry the material individuals bound with the unique identification information to the target processing unit.
8. The method for producing a multi-vehicle hybrid vehicle component according to claim 4, wherein the step S4 of synchronously updating the production data record comprises the following steps: S41, triggering a data migration event when equipment A corresponding to the previous physical position of a material individual production line moves to equipment B corresponding to the next target station; s42, the central control unit takes the unique identification information of the material individual as an index, and searches the current production data record which is bound with the material individual and corresponds to the equipment A in a centralized data storage area maintained in advance; s43, the central control unit copies or associates the current production data record into a data partition corresponding to the equipment B in the centralized data storage area, updates state information to reflect that the material individual is located in the equipment B, and files or marks the original production data record corresponding to the equipment A as a history record.
9. The method for producing the multi-vehicle type hybrid line for the automobile parts according to claim 4, wherein the step S5 comprises the following specific steps: S51, the central control unit judges whether the parts positioned at the assembly buffer station need to be subjected to sampling inspection or not; if yes, go to step S52; if not, executing step S53; S52, a blanking transfer robot of the material transfer device is scheduled to transfer the parts to a sampling inspection station, and corresponding production data records are transferred from an assembly buffer station data area to a sampling inspection station data area; s53, the central control unit executes the following classification logic: and reading the vehicle type information in the production data record of the parts, and scheduling the blanking transfer robot of the material transfer device to transfer the parts to the corresponding blanking stations in a classified manner according to the preset vehicle type-blanking station mapping relation.
10. The method for producing the multi-vehicle type hybrid line for the automobile parts according to claim 4, wherein the step S6 comprises the following specific steps: S61, at the spot inspection station, an operator uses a handheld code scanner to scan codes of the parts which are qualified in inspection, and a central control unit receives the part codes obtained by the code scanning and generates a wire returning request; S62, the central control unit searches the whole-flow historical processing data of the part in a quality tracing system database according to the part code, and verifies the effectiveness; s63, after verification is passed, marking the state information of the part as a qualified return line by the central control unit, and writing the qualified return line into a real-time data area corresponding to the spot check station; S64, a blanking transfer robot in the material transfer device is scheduled to grasp the parts from the sampling inspection station, and corresponding production data records are transferred into a data area corresponding to the blanking transfer robot; s65, the central control unit analyzes data in a data area of the blanking transfer robot, and the blanking transfer robot is scheduled to transfer the parts to corresponding blanking stations in a classified mode according to vehicle type information, so that line returning and line discharging are completed.

Description

Multi-vehicle type mixed line production system and method for automobile parts Technical Field The application belongs to the technical field of automobile manufacturing, and particularly relates to a multi-vehicle type mixed line production system and method for automobile parts. Background In automobile manufacturing, along with the development of market demands to multiple varieties and small batches, the realization of flexible and intelligent mixed line production of parts of different automobile types on the same production line has become the key for improving the production efficiency and reducing the manufacturing cost. The traditional automobile part machining assembly line is usually designed for a single vehicle type, and the machining program, the fixture and the production takt of line body equipment (such as CNC machining center, assembly station and the like) are all fixedly configured. When parts of different production and different vehicle types are required to be switched, complicated shutdown die changing, program resetting and manual scheduling are often required, so that the utilization rate of a production line is low, the switching cost is high and the production flexibility is poor. In the prior art, although the production line is automatically controlled to a certain extent by a programmable logic controller, when facing the complex scene of multi-vehicle type mixed line production, the problem still exists that the unified dynamic scheduling capability of the whole production line resource is lacking at first, and the task allocation and coordination of simultaneously processing parts of different vehicle types by a plurality of CNCs are difficult to realize. Secondly, identity information (such as vehicle type and working procedure state) of the parts on the production line cannot realize real-time tracking and data communication of the whole process, so that work-in-process management is disordered and quality tracing is difficult. Finally, the random events (such as part sampling inspection, unqualified product processing and qualified product line returning) in the production process are lack of an intelligent coping mechanism, and a large amount of manual intervention is still needed to influence the continuity and automation level of production. Therefore, an integrated control system and a production method are needed, and can realize automatic identification, on-demand processing, state tracking, mixed circulation and intelligent disposal of various vehicle type parts on a hardware production line without frequently replacing tools, thereby improving the flexibility and the comprehensive efficiency of an automobile part machining and assembly line. Disclosure of Invention In a first aspect, an embodiment of the present application provides a multi-vehicle type hybrid line production system for automotive parts, including: the at least two programmable processing units are used for processing materials according to different production formulas so as to form parts corresponding to different vehicle types; The material caching and sorting device comprises at least one assembly caching station, at least one blanking station and a spot check station, wherein the assembly caching station is used for caching processed parts from the programmable processing unit, the blanking station is used for discharging qualified parts, and the spot check station is used for off-line checking and wire returning of the parts; a material handling device for handling material between the programmable processing unit and each station; the central control unit is in communication connection with the material caching and sorting device, the material handling device and the programmable processing units; The central control unit is configured to execute the following logic: binding unique identification information for each material individual, and creating a corresponding production data record; Distributing a target vehicle type machining program for each material individual according to a predefined vehicle type formula, and scheduling the material handling device to convey the material individual to a selected programmable machining unit; Dynamically updating production data records corresponding to the material individuals in response to each change of the physical positions of the material individuals so as to reflect the current process state, the position information and the vehicle type information in real time; Scheduling the material handling device to transfer the individual materials from the programmable processing unit to the material buffering and sorting device based on the real-time production data record of the individual materials; According to a preset rule or an external instruction, based on the final production data record of the material unit, the material buffering and sorting device is controlled to convey qualified parts to corresponding blanking stations in a classifi