CN111103853A - Robot control cabinet assembly auxiliary system and method - Google Patents
Robot control cabinet assembly auxiliary system and method Download PDFInfo
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- CN111103853A CN111103853A CN201911237742.5A CN201911237742A CN111103853A CN 111103853 A CN111103853 A CN 111103853A CN 201911237742 A CN201911237742 A CN 201911237742A CN 111103853 A CN111103853 A CN 111103853A
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4189—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the transport system
- G05B19/41895—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the transport system using automatic guided vehicles [AGV]
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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Abstract
The invention discloses an auxiliary system for assembling a robot control cabinet, which comprises a line side bin for storing materials, an automatic guide transport vehicle, an error-proof workstation and a central control system, wherein the line side bin is used for storing the materials; the automatic guide transport vehicle completes the material distribution task issued by the central controller, takes the materials out of the line side bin and distributes the materials to the error-proof work stations on all the stations. And provides an error-proof assembling method applied to the system. The invention realizes that each assembly step is prompted, each assembly process is recorded, and each operation is fed back. The operation support system adopts a highly intelligent system to assist an operator to complete the assembly of products, and highly integrated functions help management, so that the interval period of product replacement is greatly shortened, the product qualification rate and the management efficiency are effectively improved, and the assembled products which cannot be fully automatic or have too high full-automatic manufacturing cost have full-automatic standards and yields.
Description
Technical Field
The invention relates to an assembly system, in particular to an assembly auxiliary system and an assembly method of a robot control cabinet.
Background
With the continuous development of scientific technology, the automation level of industrial production is higher and higher, the assembly steps of industrial equipment become more and more along with the improvement of the complexity of the equipment, and the assembly process becomes more and more complex gradually. The efficiency and quality of the complex assembly task substantially determine the final quality of the device as well as the manufacturing costs. For example, in the face of products with small-batch multiple varieties such as a robot control cabinet and a large-scale electrical control cabinet and irregular components such as a large number of circuit boards, the existing robot or high-automation production line can not meet the production requirements temporarily, manual assembly is adopted, the efficiency is low, the material is damaged and lost in continuous transfer, the error rate of the assembly process is high, and the yield can not be guaranteed. The existing full-automatic production line in the market is high in cost, the precision requirement of irregular accessories cannot be met due to automatic assembly precision, and meanwhile, the full-automatic standardized production line is not flexible to use and wastes time and labor when products are switched. The existing auxiliary operation system often lacks system management for transferring and taking materials, and the error rate in the assembly process is high.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the problems, the invention provides an auxiliary assembly system for a robot control cabinet, which can effectively improve the product qualification rate and the production efficiency and enable assembled products which cannot be fully automatic or have too high full-automatic manufacturing cost to have full-automatic standards and good product rates.
The technical scheme is as follows: the technical scheme adopted by the invention is that the robot control cabinet assembly auxiliary system is used for being matched with an assembly line to carry out assembly operation, and the system comprises: the line side bin is used for storing a warehouse of materials and sending the inventory information to the central control system; the error-preventing workstation is carried on the assembly line and used for storing assembly materials and giving an error prompt when an operator takes wrong assembly parts; the error-proof workstation sends the material shortage information of the stored materials to the central control system; the error-proof workstation comprises a display, a processing module and a display module, wherein the display is used for displaying a flow chart and prompt information of current workpiece assembly; the automatic guide transport vehicle is used for taking the materials out of the line side bin and distributing the materials to the error-proof workstations on each station; the automatic guided transport vehicle receives a material taking task issued by the central control system, communicates with the line side bin, reaches the position of the line side bin to take materials, and carries out material distribution according to a position signal of a distribution station sent by the error-proof workstation; the material taking task comprises material taking quantity and position information of a distribution station; and the central control system is used for carrying out centralized control on the line side bin, the error-preventing work station and the automatic guided transport vehicle, forming material distribution information according to the inventory information of the line side bin and the material shortage information of the error-preventing work station, and issuing material taking tasks to the line side bin and the automatic guided transport vehicle.
The line side bin comprises a code scanning gun, and is used for scanning work order bar codes, acquiring the type and quantity information of fed/taken materials and sending the information to the programmable logic controller; each material box is provided with an indicator light, and a box opening of the material box is provided with a photoelectric sensor; the indicating lamp is controlled by the programmable logic controller and used for prompting the feeding/taking sequence and feeding/taking error information, and the photoelectric sensor is used for detecting an actual feeding/taking signal and sending the actual feeding/taking signal to the programmable logic controller; the programmable logic controller is used for judging whether a feeding/taking error exists and controlling the indicator light to be on or off; and the human-computer interaction interface is connected with the programmable logic controller and is used for displaying error information.
The error-proof workstation comprises an assembly execution component, an information acquisition component, a control unit and a display; the assembly execution assembly comprises a material box and an electric screwdriver, the material box is used for storing materials to be assembled, and the electric screwdriver is used for tightening screws; the information acquisition assembly is used for acquiring assembly data and sending the assembly data to the processor, and the assembly data comprises a feeding/taking signal, a torque force value of a screwdriver and workpiece information; the control unit comprises a server, the server is used for processing and storing the acquired assembly data, and sending a processing flow chart and prompt information corresponding to the current assembly step to the display for playing; and the server calculates the quantity of the residual materials according to the feeding/taking signals, and sends the material shortage information to the central control system when the quantity of the residual materials reaches a critical value.
Furthermore, the information acquisition assembly comprises a photoelectric sensor and an indicator light which are positioned at the box opening of the material box, the photoelectric sensor is used for detecting feeding/taking materials and sending feeding/taking signals to the server, and the indicator light controls the on-off of the indicator light through a controller connected with the server and is used for prompting the sequence and the position of the feeding/taking materials; the information acquisition assembly also comprises a torque sensor positioned on the rotating shaft of the electric screwdriver and used for acquiring the torque value data of the screwdriver; the information acquisition assembly further comprises a code scanning gun for scanning the workpiece two-dimensional code to obtain workpiece information.
The invention provides an error-proof assembly method applied to the robot control cabinet assembly auxiliary system, which comprises the following steps:
(1) collecting workpiece information to be assembled, receiving and identifying the workpiece information by each station controller, and arranging assembly tasks of each station by the central control system; the information of the workpiece to be assembled is collected by scanning the identification code carried by the workpiece through the code scanning gun.
(2) When a workpiece reaches a certain station on an assembly line, workpiece information is collected, and after the workpiece information is confirmed to be correct, the error-proof workstation displays a flow chart and prompt information of current workpiece assembly; the acquisition of the information of the workpiece is realized by scanning the identification code carried by the workpiece through the code scanning gun.
(3) During the assembly process, the error-proof workstation sequentially prompts required steps, required materials and cautions through a display, simultaneously monitors the taking of the assembly materials, and reports an error when an operator takes an incorrect assembly part; the step of monitoring the taking of the assembly materials comprises the steps of sequentially lightening an indicator lamp of a material box required in the current assembly step and recording the material taking state and times.
(4) The error-proof workstation collects the processing parameters of the assembling tool in real time, judges whether the process requirements are met or not, and feeds back the judgment result to an operator. The method comprises the steps of collecting processing parameters of an assembling tool in real time, wherein the processing parameters comprise a torsion value, starting and stopping times and processing time of an electric screwdriver; the judgment result is fed back to an operator through a buzzer for alarming or a display for displaying the result.
In another error-proof assembly scheme, the method further comprises a step (5), wherein the server stores real-time states and information of the workpieces in each assembly step, automatically acquires operation time, order information, product information, material information and operator information, and reports the operation time, the order information, the product information, the material information and the operator information to the central control system to form information tracing.
Has the advantages that: compared with the prior art, the invention has the following advantages: (1) the control system of the invention records and tracks when materials enter the line side bin, the position of the line side bin error-proofing system is regulated and detected by a sensor and a prompting lamp when the material is fed, if the material is stored incorrectly or not, the system can report errors and record, the material delivery is completed by an AGV, the manual intervention is greatly reduced, and the continuous and stable production is ensured by ultrahigh efficiency; (2) when the workpiece main body to be assembled reaches a wire body station, the system can record and feed back the real-time state of the workpiece in each assembly step, and can give an early warning to unqualified products in time, so that greater loss is avoided; (3) the central control systems coordinate with each other and count data, once the product has quality problems, the system can not only give an alarm in real time and effectively reduce loss, but also inquire the product production data and material information according to the product information recorded by the system, thereby facilitating the tracking, analysis and processing of the product quality; (4) the system introduces an error prevention function in the manual operation part, each step flow has prompt and tracking, a central controller coordinates tasks in a unified way in the whole assembly process, prompt and detection are performed through a signal lamp, a system display, a sensor, a code scanning gun, a controller and the like, prompt of each step is realized, each process has records, each step operation has feedback, the product reaches nearly one hundred percent of yield, when the product is replaced, product information is only needed to be updated in the central controller, the subordinate systems can synchronize the product information, when various small-batch products are faced, the production interval period can be greatly reduced, and the production benefit is effectively improved. The invention not only absorbs the standardized production advantages of a full-automatic line, but also abandons the defects of high full-automatic cost, disordered management and the like, the control system adopts an intelligent system to assist operators to complete the assembly of products, and highly integrated functions help to manage production materials, thereby greatly reducing the time interval period for replacing products, effectively improving the product qualification rate and management efficiency, and enabling the assembled products which cannot be fully-automatic or have high full-automatic manufacturing cost to have full-automatic standards and yields.
Drawings
FIG. 1 is a block diagram of the system of the present invention;
FIG. 2 is a line side bin work flow diagram;
FIG. 3 is a flow chart of automated guided vehicle operation;
FIG. 4 is a flow chart of an error-protected workstation recording;
FIG. 5 is a flow diagram of error checking for an error protection workstation;
FIG. 6 is a schematic diagram of a multi-batch production operation.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
The robot control cabinet assembly auxiliary system is used for being matched with an assembly line body to perform auxiliary assembly operation. In this example, the assembly line body carries a main frame or a heavy base for assembling a product, a plurality of stations are arranged according to a process, the stations are connected through an automatic conveying belt, and an operator uses the automatic conveying belt to convey the parts to the next station after completing assembly of the parts on the stations and continues assembly until assembly is finished. The assembly line body power control mode is PLC + frequency conversion + three-phase asynchronous machine, realizes the accuracy of station through the positioning sensor on the line body and stops. The robot control cabinet assembly auxiliary system is installed by matching with an assembly line body, and a module diagram of the robot control cabinet assembly auxiliary system is shown in fig. 1 and comprises a line side bin for storing materials, an Automatic Guided Vehicle (AGV), an error-proof workstation carried on an assembly station and a central control system. The central control system adopts an industrial server, and the automatic guide transport vehicle completes material distribution tasks issued by the central controller, wherein the tasks comprise material taking quantity and specific task information of distribution stations, materials are taken out from the line side bin according to material taking prompts, and the materials are distributed to the error-proof work station of the material shortage station by the AGV. The line side bin and the error-proof workstation are respectively electrically connected with the central control system, and the line side bin downloads the material taking information from a server of the central control system and feeds the inventory information back to the central control system. And the error-proof workstation sends the material shortage information on the stations to the central control system. The automatic guide transport vehicle is communicated with the central control system, the line side bin and the error-proof workstation respectively, receives the material taking quantity and the distribution station information sent by the central control system, takes materials when arriving at the line side bin position, and distributes the materials according to the distribution station position signal sent by the error-proof workstation.
The line side bin is used for storing all materials required by the assembly of the robot control cabinet and comprises a programmable logic controller, a human-computer interaction interface, a code scanning gun, a material box and an alarm. The material boxes are placed on the goods shelf, and each material box is provided with a material inlet and outlet detection module for detecting the material storing and taking condition. The material inlet and outlet detection module comprises a photoelectric sensor and an indicator light which are arranged at a box opening of the material box, the photoelectric sensor is connected to a digital quantity input end of the programmable logic controller through an optical fiber, and the indicator light is connected to a digital quantity output end of the programmable logic controller. The photoelectric sensor sends a signal to the programmable logic controller to judge whether an access error exists, and the programmable logic controller controls the indicator light or the alarm to prompt a judgment result to an operator. When material is taken or fed, a work order bar code of a workpiece is scanned, a programmable logic controller calculates the material taking/feeding sequence according to the type and the quantity of the material, and sequentially lights up a cable control indicator lamp to prompt an operator to prompt the material taking/feeding sequence, a photoelectric sensor at a box opening can detect the actual material taking/feeding quantity and upload the actual material taking/feeding quantity to the programmable logic controller for closed-loop control, and when errors such as the fact that work order feeding information exceeds the capacity of a side bin or the required material taking line is lack of the side bin, the quantity is insufficient, the actual material taking/feeding is not consistent with the work order information and the like occur, the programmable logic controller can communicate with a human-computer interaction interface in real time and display error information.
The assembly line is provided with an error-proof workstation, and the error-proof workstation is arranged beside the assembly line. The error-proof workstation comprises three parts, wherein the first part is an upper control part: the system is composed of a server and a controller. The server is responsible for collecting information and summarizing, performs data interaction with the central control system and the controller and the like, and sends processing flow animation, error prompting information and the like to the display screen for playing. The controller is responsible for controlling the indicator light to be turned on and off, collecting the data of the torque value of the screwdriver, the information of the two-dimensional code of the workpiece and the state of the button, judging and processing the data, and reporting the data to the server and the like. The second part is an assembly actuator part: the electric screw driver is used for controlling the screw tightening of the electric screw driver, and the function button feeds back the execution progress and is controlled to feed back by the controller on the first layer. The third layer is an information acquisition and monitoring part: the automatic material taking device is composed of a photoelectric sensor and a code scanning gun, is responsible for monitoring whether the execution action is in place or not and collecting data, and the principle of the automatic material taking device is the same as that of the photoelectric sensor in a line side bin when the photoelectric sensor detects whether the material is taken or not. The code scanning gun is responsible for collecting workpiece information and uploading the workpiece information to the controller. The system utilizes pictures or animations to form operation instructions (using materials, assembling information and cautions), operation steps can be changed according to different materials, and steps and flows such as operation sequence, operation instruction picture setting, assembling information, material selection and the like can be modified and changed according to changes of process flows, so that the system is more convenient and flexible, and is suitable for various small batches.
The automatic guided transport vehicle AGV transports accessories required by assembly production to an error-proof workstation, a system can automatically form a material taking list according to material storage and station actual requirements of a line side warehouse by setting a warning line according to the material storage condition of each station, and after the AGV reaches the line side warehouse, the line side warehouse can sequentially light indicator lamps of the material position according to the list sequence, after the last material is taken (a material taking action triggers a sensor signal uploading system, the system records that the material taking is completed), the indicator lamp of the next material can be lighted, and the material taking accuracy is ensured. After the materials are taken, the AGV sends the materials in sequence according to the list.
And the central control system is responsible for processing the faults of all the systems and has a coordination function, and can form a corresponding report according to requirements to be butted with a company MES system or other systems. The line side bin, the AGV and the error-proof workstation are uniformly allocated by the central control system and are independent from each other, and even if any link system or hardware equipment of the link system fails, the production can be guaranteed to be orderly carried out by externally-inserted information input equipment (a keyboard, two-dimensional code reading and writing equipment and the like).
The line side bin, the automatic guided transport vehicle and the error-proof workstation are uniformly allocated by the central controller, and the following detailed working procedures are carried out:
(1) as shown in fig. 2, which is a work flow diagram of the line edge warehouse, when a certain batch of materials (a, B, C, D, E, F) needs to be put in storage, firstly, a feeding list needs to be scanned, the quantity and the model of the materials are read, the line edge warehouse system automatically arranges warehouse positions (a1, B1, C1, D1, E1, F1) according to the vacancy condition of the warehouse and the size and the type of the materials, according to the sequence of the list, the prompt lamps of the warehouse positions are sequentially lighted, the sensors (photoelectric sensors) detect signals during feeding and feed back to the system, that is, feeding is completed, a complete feeding record is formed, when one or more materials (a, C) at a certain station reach the warning line, as shown in fig. 3, the station simultaneously sends a material shortage signal to the AGV and the central control system, the central control system integrates the inventory information and the process to determine the distribution quantity, the AGV reaches a position a1, C1, the sensor signal can be triggered every time material taking, the system records a material taking completion signal, the material taking completion signal is distributed to a corresponding station after the material taking is completed, and the station staff is responsible for material feeding (when the AGV arrives, the signal is given, the station system can sequentially open material boxes according to a material distribution list and the distribution sequence, and meanwhile corresponding indicating lamps are lightened).
(2) The work flow of the error-proof workstation is shown in figures 4 and 5. Before working, an operator must log in a personal account, otherwise, the system cannot work normally, and after the operator logs in the system, the system binds the assembly flow behavior information with the current logged-in operator. So that the assessment performance is based. When an assembly task is executed, an operator firstly puts a workpiece to be assembled into a wire body, scans workpiece information by using a code scanning gun, each station controller receives and identifies the workpiece information, the central controller arranges each station assembly task, when the workpiece reaches a specified station, the code scanning gun scans the workpiece bar code information, after the workpiece information is confirmed, a station display displays a flow animation picture of current workpiece assembly and prompt information for operation indication, wherein the flow animation picture comprises current order information, product name, model and code, standard operation time, used materials, assembly information and attention points, the assembly information summarizes each step of the whole assembly flow, when the assembly flow is carried out, for important parts with two-dimensional codes, the scanning gun is required to input part information during assembly, for example, when a robot control cabinet is used for assembling an I-type circuit board, 2G-type screws are required to be installed firstly, and then H-type screws are required to be installed, the process is as follows: the method comprises the steps that firstly, a station display displays that a material box to be opened is a material box of an I-shaped circuit board, meanwhile, a station controller lights an indicating lamp of the material box of the I-shaped circuit board, when an employee takes materials, a photoelectric sensor is triggered to record material taking information, the indicating lamp is turned off, and after the employee scans bar code information on the I-shaped circuit board, a system binds the information with a workpiece and employee information. If the staff does not scan the bar code information on the I-type circuit board, the station alarm will sound, and meanwhile, the station display will display the bar code information of the I-type circuit board which is not input, so that the staff is prompted to standardize the operation, and the second step of operation can be carried out by manually clicking when the first step of system is completed without error reporting. Secondly, the station display displays that the material box to be opened is a material box of a G-type screw, the station controller lights an indicator light of the material box, the photoelectric sensor records that the indicator light is turned off when two times of material taking signals are taken (bar code information does not need to be scanned), then the station controller powers on the electric screwdriver, lights an indicator light at the position of the electric screwdriver at the same time, the indicator light is turned off when an employee takes up the electric screwdriver, the system records the starting and stopping times and the torsion value of the electric screwdriver when the torsion value is over or under the process requirement, the system prompts an alarm and records the alarm information and the current operator information, the operator can choose to re-process, the station server records the operation behavior information and requires to confirm the state of a re-processed product, if the process requirement cannot be met after the re-processing, the employee can click a station to give up a processing button, the workpiece will flow directly into the final inspection station and into the reject area. And manually clicking to perform the third step of operation when the second step of system error report is not performed. And thirdly, the system prompts to open the H-shaped screw material box, the steps are the same as those of the G-shaped screw, after all the H-shaped screw material boxes are installed, an operator clicks an installation completion button, the system does not give an alarm, and the workpiece flows into the next procedure.
(3) When the production plan needs to change the workpiece batch number or change the product type, as shown in fig. 6, the new workpiece model diagram, the assembly sequence diagram, the type and quantity of the required materials, the new format of the two-dimensional code or the bar code to which the new workpiece belongs, the line side bin system and the error-proof workstation can synchronize the new product information by adding the new workpiece model diagram, the assembly sequence diagram, the required material type and quantity, and the new format of the two-dimensional code or the bar code to which the new workpiece belongs in advance. For example, when a produced product is changed from A to B, after information such as a workpiece model diagram of B is added in a central system, click updating is carried out, at the moment, a line side bin can compare B with a stock bill of materials to prompt the missing materials and the current quantity (the central system sets a warning line XXXX and a stock line FFFF according to the production process and actual production requirements), warehouse management personnel carries out feeding in the same way as (1), meanwhile, an error-proof station can still continue to execute the assembly flow of A when new workpiece B two-dimensional codes or bar codes are not scanned until the information of B is scanned, the error-proof station can automatically jump to the assembly flow animation of B and prompt of the needed materials until the information of B is scanned, and the operator can carry out assembly quickly without excessive training and preparation.
Claims (9)
1. A robot control cabinet assembly auxiliary system for cooperating with an assembly line for assembly work, the system comprising: the line side bin is used for storing a warehouse of materials and sending the inventory information to the central control system; the error-preventing workstation is carried on the assembly line and used for storing assembly materials and giving an error prompt when an operator takes wrong assembly parts; the error-proof workstation sends the material shortage information of the stored materials to the central control system; the error-proof workstation comprises a display, a processing module and a display module, wherein the display is used for displaying a flow chart and prompt information of current workpiece assembly; the automatic guide transport vehicle is used for taking the materials out of the line side bin and distributing the materials to the error-proof workstations on each station; the automatic guided transport vehicle receives a material taking task issued by the central control system, communicates with the line side bin, reaches the position of the line side bin to take materials, and carries out material distribution according to a position signal of a distribution station sent by the error-proof workstation; the material taking task comprises material taking quantity and position information of a distribution station; and the central control system is used for carrying out centralized control on the line side bin, the error-preventing work station and the automatic guided transport vehicle, forming material distribution information according to the inventory information of the line side bin and the material shortage information of the error-preventing work station, and issuing material taking tasks to the line side bin and the automatic guided transport vehicle.
2. The robotic control cabinet assembly assistance system of claim 1, wherein: the line side bin comprises a code scanning gun which is used for scanning work order bar codes, acquiring the type and quantity information of the fed/taken materials and sending the information to the programmable logic controller; each material box is provided with an indicator light, and a box opening of the material box is provided with a photoelectric sensor; the indicating lamp is controlled by the programmable logic controller and used for prompting the feeding/taking sequence and feeding/taking error information, and the photoelectric sensor is used for detecting an actual feeding/taking signal and sending the actual feeding/taking signal to the programmable logic controller; the programmable logic controller is used for judging whether a feeding/taking error exists and controlling the indicator light to be on or off; and the human-computer interaction interface is connected with the programmable logic controller and is used for displaying error information.
3. The robotic control cabinet assembly assistance system of claim 2, wherein: the error-proof workstation comprises an assembly execution component, an information acquisition component, a control unit and a display; the assembly execution assembly comprises a material box and an electric screwdriver, the material box is used for storing materials to be assembled, and the electric screwdriver is used for tightening screws; the information acquisition assembly is used for acquiring assembly data and sending the assembly data to the processor, and the assembly data comprises a feeding/taking signal, a torque force value of a screwdriver and workpiece information; the control unit comprises a server, the server is used for processing and storing the acquired assembly data, and sending a processing flow chart and prompt information corresponding to the current assembly step to the display for playing; and the server calculates the quantity of the residual materials according to the feeding/taking signals, and sends the material shortage information to the central control system when the quantity of the residual materials reaches a critical value.
4. The robotic control cabinet assembly assistance system of claim 3, wherein: the information acquisition assembly comprises a photoelectric sensor and an indicator light which are positioned at the box opening of the material box, the photoelectric sensor is used for detecting feeding/taking materials and sending feeding/taking material signals to the server, and the indicator light is controlled to be on or off through a controller connected with the server and used for prompting the feeding/taking sequence and position; the information acquisition assembly also comprises a torque sensor positioned on the rotating shaft of the electric screwdriver and used for acquiring the torque value data of the screwdriver; the information acquisition assembly further comprises a code scanning gun for scanning the workpiece two-dimensional code to obtain workpiece information.
5. An error-proof assembling method applied to the robot control cabinet assembling auxiliary system of claim 4, characterized by comprising the following steps:
(1) collecting workpiece information to be assembled, receiving and identifying the workpiece information by each station controller, and arranging assembly tasks of each station by the central control system;
(2) when a workpiece reaches a certain station on an assembly line, workpiece information is collected, and after the workpiece information is confirmed to be correct, the error-proof workstation displays a flow chart and prompt information of current workpiece assembly;
(3) during the assembly process, the error-proof workstation sequentially prompts required steps, required materials and cautions through a display, simultaneously monitors the taking of the assembly materials, and reports an error when an operator takes an incorrect assembly part;
(4) the error-proof workstation collects the processing parameters of the assembling tool in real time, judges whether the process requirements are met or not, and feeds back the judgment result to an operator.
6. The error-protection assembly method of claim 5, wherein: the method also comprises the step (5) that the server stores the real-time state and information of the workpiece generated in each assembly step, automatically acquires the operation time, order information, product information, material information and operator information, and reports the operation time, order information, product information, material information and operator information to the central control system to form information tracing.
7. The error-protection assembly method of claim 5, wherein: the step (1) of collecting the information of the workpiece to be assembled is to collect the information by scanning an identification code carried by the workpiece through a code scanning gun; and (3) acquiring the workpiece information in the step (2), namely, scanning the identification code carried by the workpiece by a code scanning gun for acquisition.
8. The error-protection assembly method of claim 5, wherein: and (4) monitoring the taking of the assembly materials in the step (3), wherein the step comprises the steps of sequentially lightening an indicator lamp of the material box required in the current assembly step and recording the material taking state and times.
9. The error-protection assembly method of claim 5, wherein: collecting the processing parameters of the assembling tool in real time in the step (4), wherein the collecting comprises collecting the torque force value, the starting and stopping times and the processing time of the electric screwdriver; and (4) feeding back the judgment result to an operator by a buzzer for alarming or a display for displaying the result.
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