JP2007083967A - Erroneous work prevention system in manufacturing step - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase an effectively usable place in a factory by installing one erroneous work prevention device in every one step of manufacturing steps. <P>SOLUTION: The erroneous work prevention system has an erroneous work prevention control board 1 having software capable of setting data for performing instruction of a vehicle shape, selection instruction of parts and selection and instruction of the fastening number of a fastening tool and a touch panel; a vehicle shape instruction part 2 for transmitting/receiving a vehicle shape signal to the erroneous work prevention control board; a part selection part 3 for receiving a signal for instructing a mounting part corresponding to the vehicle shape and instructing a position of the mounting part from the erroneous prevention control board 1 and transmitting a signal for confirming taking out of the part to the erroneous work prevention control board; and a fastening tool part for transmitting a fastening signal from the fastening tool to the erroneous work prevention control board. The respective erroneous work prevention control boards are connected to a production instruction parent station for performing instruction relative to all manufacturing steps and can transmit/receive the various kinds of data signals. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a system for preventing erroneous operations in a manufacturing process that can be used in various processes of manufacturing automobiles and the like, and in each process can indicate a vehicle type, select a tightening tool and indicate the number of tightening, and select parts. .

  Conventionally, in one of the various processes of manufacturing a car, etc., one car model of a car that is transported by instructing the car model, selecting the tightening tool and instructing the number of tightening parts, and selecting parts. The parts matched to the car body are tightened and assembled at the place determined by the tightening tool. Therefore, it is necessary to select parts to be mounted at various mounting positions that match one vehicle type that is being transported, and further to select the tightening tool and instruct the number of tightening. There was an erroneous work prevention device. That is, an error prevention device having a control panel that indicates a vehicle type in at least one process, an error prevention device that indicates a tightening position corresponding to the vehicle type, and an error that indicates the selection of the tightening tool and the number of tightening. A work prevention device was needed.

  However, conventionally, since a plurality of different types of erroneous work prevention devices are required in one process, an installation place corresponding to each of them is required. For this reason, there is a problem that the work place becomes narrow. In addition, each erroneous work prevention device is a dedicated machine for vehicle type, parts, and tightening tools, so it is necessary to add a control panel including software each time the process is changed. And disadvantages such as increased manufacturing costs.

  Moreover, since the software of the control panel used for the erroneous operation prevention device differs depending on the specification, it is necessary to change the software for each process. Therefore, in a factory where the process changes in one day, it is necessary to change the software every time, and there is a problem that management and work are troublesome.

  In order to solve the above problems, software for setting the data for instructing the car model, selecting parts, selecting the tightening tool and instructing the number of tightening can be displayed on each monitor. Control panel having a touch panel, a vehicle type indicating unit for identifying a vehicle type and transmitting / receiving a vehicle type signal to the control panel, and a signal for indicating a mounting part corresponding to the vehicle type and indicating a position of the mounting part. A parts selection unit that receives signals from the erroneous operation prevention control panel and sends confirmation signals to the erroneous operation prevention control panel, and a tightening tool unit that transmits a tightening signal from the tightening tool to the erroneous operation prevention control panel Each control panel for misoperation is connected to a production instruction master station for instructing all manufacturing processes, and various data signals can be transmitted and received. To propose a stem.

  In addition, in the 0005 column, the parts sorting section includes a parts sorting device that clearly shows the parts sorted according to the instruction signal received from the erroneous operation prevention control panel and a parts removal confirmation device that confirms the removal of the parts. Propose an error prevention system in manufacturing process.

  According to the present invention, since it is only necessary to install one erroneous work prevention device for each process of manufacturing a car or the like, the number of places that can be used effectively in the factory has increased.

  In addition, because one vehicle operation instruction, part selection instruction, tightening tool selection, and tightening number instruction can be performed together with a single erroneous operation prevention device, the number of additions and changes to the control panel including software has been reduced.

  Since it is only necessary to manage one software in one process, maintenance management becomes easier and maintainability is improved.

  Next, with respect to one embodiment of the present invention, FIG. 1 which is an explanatory view of one erroneous work prevention system in each step of the manufacturing process, and the operation flow of the erroneous work prevention system which is also an embodiment of the present invention FIG. 2 is a flowchart showing the above, FIG. 3 to FIG. 6 showing examples of monitor display on the touch panel of the erroneous operation prevention control panel, and FIGS. 7 to 22 showing specific examples of the monitor of the erroneous operation prevention control panel. Based on

  The erroneous operation prevention system in the manufacturing process according to the embodiment of the present invention sets data for instructing the vehicle type, selecting the parts, selecting the tightening tool, and instructing the number of tightening in one of the manufacturing processes. One erroneous operation prevention control panel 1 having a touch panel 10 capable of displaying and displaying each possible software, and one vehicle type instruction unit 2 for specifying a vehicle type and transmitting / receiving a vehicle type signal to the erroneous operation prevention control panel 1 , It has a sorting lamp 30 that turns on when a mounting part corresponding to the vehicle type is received and a signal indicating the position of the mounting part is received from the erroneous operation prevention control panel 1 and a part removal confirmation device 31 that confirms the removal of the part. One component selection unit 3, one tightening tool unit 4 that receives a tightening signal for instructing a tightening tool from the erroneous work prevention control panel 1, and a conveyor control that controls a transport conveyor in the manufacturing process With a 5. Each erroneous work prevention control panel 1 is connected to a production instruction master station 6 capable of transmitting / receiving signals such as an instruction signal and a confirmation signal to the erroneous work prevention control panel 1 in each process throughout the manufacturing process.

  When the erroneous operation prevention system is turned on by the start switch as shown in FIG. 2 which is a flowchart showing the flow of the operation, the production instruction master station 6 controls each erroneous operation prevention according to the set vehicle type data. Data corresponding to the vehicle type is transmitted to the panel 1. The erroneous operation prevention control panel 1 which is each slave station determines a vehicle type, a part, or a tool based on a teaching program inputted based on data received from the production instruction master station 6. Based on the determination, the erroneous work prevention control panel 1 transmits an instruction signal to each of the vehicle type instruction unit 2, the component selection unit 3, and the tightening tool unit 4. At this time, each of the vehicle type instructing unit 2, the component selecting unit 3, and the tightening tool unit 4 instructs the vehicle type based on the instruction signal, takes out the instructed component, and performs the tightening operation with the instructed tightening tool. . If the correct part corresponding to the vehicle type is completed with the correct tightening tool, the erroneous operation prevention control panel 1 can confirm the completion of the operation with the touch panel 10. Further, when the work is not completed within the data set in advance on the touch panel 10, a conveyor stop signal is transmitted from the conveyor control panel 5 to stop the conveyor as a work delay. The touch panel 10 of the erroneous work prevention control panel 1 can select and display a monitor display of data to be received and transmitted.

  On the touch panel 10 of the erroneous work prevention control panel 1, a monitor display for displaying completion, start, alarm, stop, etc. of the vehicle type selection unit 2, the component selection unit 3 and the tightening tool unit 4 for each process shown in FIG. 4, a monitor display for displaying each vehicle type of the vehicle type selection unit 2 for each process shown in FIG. 4, a monitor display for displaying the part selection unit 3 for each process shown in FIG. 5, and a process for each process shown in FIG. Each tool of the tightening tool unit 4, position setting, and monitor display for displaying completion of tightening can be displayed.

  The parts sorting unit 3 includes a parts sorting device 30, a parts removal confirmation device 31, and a parts location 32. In this embodiment, the parts sorting device 30 is composed of parts sorting lamps 30. When the car type data is received for the parts placed in the parts places 32, the parts sorting lamps 30 are turned on at the parts places 32 where the designated parts are located. Instruct the selected parts. In this embodiment, up to 128 parts can be registered, and the parts for which the part selection lamp 30 is lit are selected. In this embodiment, the component take-out confirmation device 31 is composed of a photoelectric switch. The component take-out confirmation device 31 blocks the light by taking out the component from the component location 32 where the component selection lamp 30 is lit, and this is detected by the photoelectric switch. This take-out confirmation signal is transmitted to the erroneous work prevention control panel 1. In another embodiment of the component take-out confirmation device 31, it may be performed by another switch, a take-out button or the like.

  The erroneous work prevention control panel 1 displays a signal for selecting a fastening tool corresponding to the vehicle type and instructing the number of fastenings based on the set vehicle type data. The number of tightening tools is 12 in this embodiment, the touch panel lamp is turned on by an instruction signal, the tightening tool is selected, and the number of tightening tools set by the tightening tool is assembled.

  As for the start and completion of these operations, completion signals are transmitted from the vehicle type selection unit 2, the component selection unit 3 and the tightening tool unit 4 to the erroneous operation prevention control panel 1 and displayed on the touch panel 10.

  The conveyor control panel 5 is connected to the conveyor control device and is connected to the production instruction master station 6 and each erroneous work prevention control panel 1. If the operation is not completed within the data set in advance on the touch panel 10, the conveyor control panel 5 transmits a conveyor stop signal from the conveyor control panel 5 to stop the process line and stop the process line as a work delay.

  A specific example of the monitor display on the touch panel 10 of the erroneous work prevention control panel 1 will be described with reference to FIGS. 7 to 22 showing the touch panel 10 of the erroneous work prevention control panel 1. On the touch panel 10 of the erroneous work prevention control panel 1, a title screen is displayed as menu 1 (FIG. 7), initial value setting A, initial value setting B, slave pointer alignment, T wrench (tool) setting, and part selection. Instruction setting, vehicle type instruction setting, and work name setting are displayed. In addition, the touch panel 10 of the erroneous work prevention control panel 1 has a title screen display as menu 2 (FIG. 8), a slave station status monitor, a Bf status (buffer data) monitor, an abnormal content monitor, a T wrench monitor, and a part. A sorting instruction monitor, a car type instruction monitor, and a work name monitor are displayed.

  In the monitor screen (FIG. 9) showing the initial setting A, In the conveyor pulse position start mode, the erroneous work prevention start position, alarm position, and stop position are set. 2. The number of data (the number of buffers) to be taken into the erroneous operation prevention control panel 1 as a slave station is set.

  In the monitor screen (FIG. 10) showing the initial value setting B, In the request button start mode, an erroneous work prevention alarm time and a stop time are set. 2. Set the output time of the car type indication. After the request, only the set time of the vehicle type instruction is output. At 0 second, output until completion signal is received.

  On the monitor screen (FIG. 11) showing the slave station pointer alignment, the instruction data from the production instruction master station 6 is changed on the erroneous work prevention control panel 1 which is the slave station.

  On the monitor screen showing the tightening tool and the tightening number setting (FIGS. 12 and 13), the tool is selected and the tightening number is set for each vehicle type information. Up to 12 tools can be registered.

  On the monitor screen (FIG. 14) showing the setting (1 to 3) of the parts selection instruction, the parts selection instruction is set for each vehicle type information. In this embodiment, up to 128 parts can be registered, and the parts for which the part selection lamp 30 is lit are selected.

  On the monitor screen (FIG. 15) showing the setting of the vehicle type instruction, the vehicle type instruction is set for each vehicle type information.

  On the monitor screen (FIG. 16) showing the setting of the work name, the work name is set for each vehicle type information.

  On the monitor screen (FIG. 17) showing the slave station, the current working state is displayed. For example, any of tightening tool instructions, parts selection, car type instructions will indicate completion or start or alarm or stop.

  On the monitor screen showing the Bf state (FIG. 18), the data captured in the erroneous work prevention control panel 1 which is each of the current slave stations is displayed.

  On the monitor screen (FIG. 19) showing the tool tightening instruction, the current state of the tool tightening instruction is displayed.

  On the monitor screen (FIG. 20) showing the component selection instruction, the current state of the component selection instruction is displayed.

  On the monitor screen (FIG. 21) showing the vehicle type instruction, the current state of the vehicle type instruction is displayed.

  On the monitor screen (FIG. 22) showing the work name, the current work name is displayed.

  The present invention is highly applicable to various operations in the manufacturing process of automobiles.

Explanatory drawing of 1 process of the erroneous work prevention system which is one Embodiment of this invention The flowchart figure which shows the flow of the instruction | indication signal of the erroneous work prevention system which is embodiment of this invention similarly Display example of the touch panel monitor of the erroneous work prevention control panel which is also an embodiment of the present invention Display example of the touch panel monitor of the erroneous work prevention control panel which is also an embodiment of the present invention Display example of the touch panel monitor of the erroneous work prevention control panel which is also an embodiment of the present invention Display example of the touch panel monitor of the erroneous work prevention control panel which is also an embodiment of the present invention The display figure which shows the specific Example of the touch panel of the erroneous operation prevention control panel which is also embodiment of this invention The display figure which shows the specific Example of the touch panel of the erroneous operation prevention control panel which is also embodiment of this invention The display figure which shows the specific Example of the touch panel of the erroneous operation prevention control panel which is also embodiment of this invention The display figure which shows the specific Example of the touch panel of the erroneous operation prevention control panel which is also embodiment of this invention The display figure which shows the specific Example of the touch panel of the erroneous operation prevention control panel which is also embodiment of this invention The display figure which shows the specific Example of the touch panel of the erroneous operation prevention control panel which is also embodiment of this invention The display figure which shows the specific Example of the touch panel of the erroneous operation prevention control panel which is also embodiment of this invention The display figure which shows the specific Example of the touch panel of the erroneous operation prevention control panel which is also embodiment of this invention The display figure which shows the specific Example of the touch panel of the erroneous operation prevention control panel which is also embodiment of this invention The display figure which shows the specific Example of the touch panel of the erroneous operation prevention control panel which is also embodiment of this invention The display figure which shows the specific Example of the touch panel of the erroneous operation prevention control panel which is also embodiment of this invention The display figure which shows the specific Example of the touch panel of the erroneous operation prevention control panel which is also embodiment of this invention The display figure which shows the specific Example of the touch panel of the erroneous operation prevention control panel which is also embodiment of this invention The display figure which shows the specific Example of the touch panel of the erroneous operation prevention control panel which is also embodiment of this invention The display figure which shows the specific Example of the touch panel of the erroneous operation prevention control panel which is also embodiment of this invention The display figure which shows the specific Example of the touch panel of the erroneous operation prevention control panel which is also embodiment of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Misoperation prevention control panel 10 Touch panel 2 Car-type instruction | indication part 3 Parts selection part 30 Parts selection lamp 31 Parts extraction confirmation apparatus (Eject button, photoelectric switch, switch)
4 Tightening tool section 5 Conveyor control panel 6 Production instruction master station

Claims (2)

  Misoperation control with software that can set data for instructing car type, parts selection, tightening tool selection, and tightening number instructions for each manufacturing process A vehicle type indicating unit that identifies the vehicle type and transmits and receives vehicle type signals to the control panel, and receives signals from the control panel that indicate the mounting parts corresponding to the vehicle type and indicate the position of the mounting parts. And a component selection unit that transmits a signal for confirming the removal of components to the erroneous operation prevention control panel and a tightening tool unit that transmits a tightening signal from the tightening tool to the erroneous operation prevention control panel. The work prevention control panel is connected to a production instruction master station for giving instructions to all manufacturing processes, and can transmit and receive various data signals. 2. The component sorting unit according to claim 1, wherein the component sorting unit is a component sorting unit having a part sorting device that clearly identifies a part that has been sorted according to an instruction signal received from an erroneous operation prevention control panel, and a component removal confirmation device that confirms part removal. A system for preventing erroneous work in the manufacturing process.

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