JP7531339B2 - Parts placement table - Google Patents

Description

The present invention relates to a parts placement table on which multiple parts to be removed from a device during disassembly work are placed and which teaches the disassembly or assembly procedure for the device.

In the maintenance and inspection of equipment, the equipment is disassembled, then the components that make up the equipment are inspected, consumable parts are replaced, and the equipment is then reassembled. For example, an elevator hoist is equipped with a brake device. If the brake device does not function properly, it could jeopardize the safety of the elevator, so the brake device is periodically inspected and maintained (for example, Patent Document 1). In the maintenance and inspection of brake devices, the brake device is first disassembled, then each component is inspected, consumable parts are replaced, and the brake device is then assembled.

Japanese Patent Application Publication No. 11-199150

However, when disassembling equipment with complicated disassembly procedures, such as elevator brake devices, mistakes can occur, such as removing parts in the wrong order or losing removed parts.

The object of the present invention is to provide a parts placement stand that can prevent operational errors during disassembly of equipment.

The part placement stand of the present invention is a part placement stand on which a number of parts to be removed from a device during disassembly of the device are placed, and is equipped with a display unit on which images of the parts to be removed are displayed and on which the removed parts are placed, a camera that photographs the removed parts placed on the display unit, and a control unit that, when disassembling the device, displays images of the parts to be removed in the order of removal according to the disassembly procedure on the display unit, recognizes the removed parts placed on the display unit from the images taken by the camera, and determines whether the parts to be removed and the removed parts are the same.

In the part placement stand of the present invention, the control unit recognizes the removed part placed on the display unit from the image captured by the camera, and detects any breakage or damage to the removed part.

In the part placement stand of the present invention, when assembling the device, the control unit causes the display unit to illuminate or blink images of parts to be installed in the installation order according to the assembly procedure.

The component mounting stand of the present invention can prevent operational errors during disassembly of the device.

FIG. 2 is a plan view showing a component mounting stage according to an embodiment; FIG. 2 is a side view showing a component mounting stage according to an embodiment; FIG. 2 is a block diagram showing a configuration of a control unit. FIG. 11 is a flow chart showing a procedure for disassembly. FIG. 4 is a flow chart showing an assembly procedure.

An example of an embodiment of the present invention will be described in detail below. In the following description, specific shapes, materials, directions, values, etc. are merely examples to facilitate understanding of this disclosure, and may be modified as appropriate to suit the application, purpose, specifications, etc.

The component placement stand 10, which is an example of an embodiment, will be described with reference to Figures 1 and 2. Figure 1 is a plan view showing the component placement stand 10. Figure 2 is a side view showing the component placement stand 10.

The part placement table 10 is a table on which parts to be removed from the device during disassembly and assembly work are placed, and which also teaches the disassembly and assembly procedures. The part placement table 10 can prevent operational errors during disassembly and assembly work, as will be described in detail later.

In this example, the device that is the subject of the disassembly and assembly work is a brake device that is installed on an elevator hoist. For safety reasons, the brake device is periodically inspected for maintenance and inspection. In the maintenance and inspection work for the brake device, the brake device is first disassembled, then the parts are inspected and consumable parts are replaced, and finally the brake device is assembled. Details of the brake device will not be explained here.

As shown in Figures 1 and 2, the part placement stand 10 has a tray 11 on which multiple parts that are removed when disassembling the brake device are placed, and a main body 12 provided below the tray 11.

The tray 11 is a tray on which parts removed from the brake device are placed in the order in which they were removed. The tray 11 allows the parts removed from the brake device to be placed together without being lost. The tray 11 includes a rectangular bottom surface portion 11A and a wall portion 11B formed around the periphery of the bottom surface portion 11A. A display portion 13 is provided on the bottom surface portion 11A of the tray 11.

The display unit 13 is a section where an image G of the part to be removed from the brake device is displayed and where the removed part is placed. The display unit 13 allows the parts to be removed from the brake device to be arranged in an organized manner on the tray 11. The worker can also visually check whether or not the removed part is present. This prevents the worker from making an operational mistake that results in the loss of a removed part.

In addition, the display unit 13, as described in detail below, allows the worker to visually confirm the next part to be removed during brake device disassembly work by displaying images G of parts to be removed in the order of removal according to the disassembly procedure. In addition, in brake device assembly work, the image G of parts to be assembled, on which the parts are placed, lights up or flashes in the order of installation according to the assembly procedure, allowing the worker to visually confirm the next part to be installed. This makes it possible to prevent operational mistakes resulting from incorrect disassembly and assembly procedures.

The display unit 13 is connected to the control unit 20, the details of which will be described later. The display unit 13 is configured as a liquid crystal display, which is a flat, thin visual display device. It is preferable that a plurality of display sections 13A are formed in the display unit 13, and an image G of the part to be removed is displayed in each of the display sections 13A.

It is preferable that the display section 13A, for example, displays the parts to be removed in a predetermined direction (e.g., clockwise) in the order of removal according to the disassembly procedure when viewed in a plan view. This allows the worker to visually confirm the progress of the disassembly and assembly procedures.

In the display area 13A, it is preferable that an image G having substantially the same shape as the part to be removed in a plan view is displayed. In addition, the image G displayed in the display area 13A is preferably a photographic image of the part to be removed in a plan view, but may also be an illustrated image in a plan view, or may be a solid image showing only the outline in a plan view.

The main body 12 has a camera 14 that takes pictures of parts placed on the display unit 13, a speaker 15 that announces the disassembly and assembly procedures, and a control unit 20 that uses the display unit 13, the camera 14, and the speaker 15 to teach the disassembly and assembly procedures.

The camera 14 photographs the part placed on the display unit 13. Details will be described later, but by photographing the part placed on the display unit 13, i.e., the part removed from the brake device, with the camera 14, it is possible to determine whether the removed part is the same as the part that should be removed. In addition, by photographing the part removed from the brake device with the camera 14, it is possible to determine whether the removed part is broken or damaged.

The camera 14 is connected to the control unit 20. One camera 14 may be built into the main body 12, or multiple cameras 14 may be built into the main body 12. Also, one camera 14 may be provided on the wall portion 11B of the tray 11, or multiple cameras 14 may be provided on the wall portion 11B of the tray 11.

The speaker 15, which will be described in detail later, announces the procedures for disassembling and assembling the brake device to the worker. The speaker 15 allows the worker to audibly confirm the next part to be removed or the next part to be installed. This helps prevent mistakes in the disassembly and assembly procedures.

The speaker 15 is connected to the control unit 20. The speaker 15 is provided on the side of the main body 12. In this embodiment, the speaker 15 is provided on the main body 12, but this is not limited to the configuration. For example, the announcement information described below may be wirelessly transmitted to a smartphone owned by the worker, and the smartphone may be used as a speaker.

The control unit 20 will be described with reference to FIG. 3. FIG. 3 is a block diagram showing the configuration of the control unit 20.

The control unit 20, as described above, uses the display unit 13, the camera 14, and the speaker 15 to instruct the brake device disassembly and assembly procedures. The control unit 20 is equipped with a CPU as an arithmetic processing device that executes control, a ROM, a RAM, and a hard disk drive (HDD) as storage devices connected to the CPU, and a communication device that transmits and receives information. As shown in FIG. 3, the control unit 20 is connected to the display unit 13, the camera 14, and the speaker 15.

The control unit 20 has a maintenance and inspection information acquisition unit 21 that acquires the disassembly and assembly procedures for the brake device, a disassembly part instruction unit 22 that instructs which parts should be removed when disassembling the brake device, a part recognition unit 23 that recognizes parts placed in the display area 13A, a part determination unit 24 that judges the parts placed in the display area 13A, an assembly part instruction unit 25 that instructs which parts should be installed when assembling the brake device, and a maintenance and inspection history recording unit 26 that records the maintenance and inspection history of the brake device.

The maintenance and inspection information acquisition unit 21 has a function of acquiring maintenance and inspection information including the brake device disassembly procedure, the brake device assembly procedure, and images G of each of the parts of the brake device to be removed. The maintenance and inspection information acquisition unit 21 acquires the brake device maintenance and inspection information from among the maintenance and inspection information of multiple devices stored in advance in a storage device. The worker can select the brake device maintenance and inspection information from among the maintenance and inspection information of multiple devices, for example, by operating the touch panel of the display unit 13. In addition, it is preferable that the maintenance and inspection information of the device is set by an external terminal.

The disassembly part instruction unit 22 has a function of instructing which part should be removed next when disassembling the brake device. More specifically, the disassembly part instruction unit 22 displays an image G of the part to be removed next in the display area 13A of the display unit 13 in the order of removal according to the disassembly procedure for the brake device acquired by the maintenance and inspection information acquisition unit 21.

The disassembly part instruction unit 22 also announces, via the speaker 15, the part that should be removed next when disassembling the brake device. More specifically, the disassembly part instruction unit 22 announces, via the speaker 15, a message corresponding to the part that should be removed, such as "Loosen the upper bolt and remove the brake arm."

The part recognition unit 23 has the function of using the camera 14 to perform image recognition of parts that have been instructed by the disassembly part instruction unit 22, removed by the worker, and placed in the display area 13A.

The part determination unit 24 has a function of determining whether a part (hereinafter, the removed part) placed on the display area 13A and recognized by the part recognition unit 23 is the same as the part to be removed as instructed by the disassembly part instruction unit 22. For example, the part determination unit 24 may determine that the removed part and the part to be removed are different when the shapes of the removed part and the part to be removed are significantly different.

The part determination unit 24 also has a function of determining whether the removed part is broken or damaged. For example, if the shape of the removed part is slightly different from the shape of the part to be removed, the part determination unit 24 may determine that the removed part is broken or damaged.

If the removed part is not the same as the part to be removed, the part determination unit 24 issues an announcement, such as a message such as "The removed part is different" or a warning sound, through the speaker 15. The warning may also be issued by flashing the image G in the display area 13A.

If the removed part is broken or damaged, the part determination unit 24 issues an announcement, such as a message such as "The removed part is damaged" or a warning sound, through the speaker 15. The warning may also be issued by flashing the image G in the display area 13A.

The assembly part teaching unit 25 has a function of teaching the next part to be installed when assembling the brake device. More specifically, the assembly part teaching unit 25 lights up or flashes the image G of the part displayed in the display area 13A, where the next part to be installed is placed, in the installation order according to the assembly procedure of the brake device acquired by the maintenance and inspection information acquisition unit 21.

The assembly part instruction unit 25 also announces, via the speaker 15, the part that should be installed next when assembling the brake device. More specifically, the assembly part instruction unit 25 announces, via the speaker 15, a message corresponding to the part that should be installed, such as "Install the brake arm while paying attention to the angle."

The maintenance inspection history recording unit 26 displays the parts to be removed in the display area 13A of the display unit 13 in the order of disassembly of the brake device according to the maintenance inspection information of the brake device, and when the image G displayed in the display area 13A in the order of assembly of the brake device is lit or blinks, records in the storage device that the maintenance inspection was performed together with the date and time. At this time, it is preferable to also record if any parts recognized by the part determination unit 24 are broken or damaged.

The flow of disassembly work for brake work using the part mounting table 10 will be explained using Figure 4.

In step S11, maintenance and inspection information for the brake device is selected from among the maintenance and inspection information for multiple devices by operating the touch panel of the display unit 13. In step S12, an image G of, for example, the parts of the brake switch cover of the brake device and the bolts that secure the cover is displayed in the display section 13A of the display unit 13. In step S13, a message such as "Please remove the brake switch cover" is announced by the speaker 15.

In step S14, the worker removes the cover from the brake device and places the cover in the display area 13A. In step S15, the camera 14 photographs the removed part, and in step S16, the removed part is recognized. In step S17, the control unit 20 determines whether the removed part is the same as the cover. If the removed part is the same as the cover, the process proceeds to step S19. If the removed part is not the same as the cover, the process proceeds to step S18, and the speaker 15 announces the message "The removed part is different."

In step S19, the control unit 20 determines whether the removed cover is broken or damaged. If the removed cover is not broken or damaged, the process proceeds to step S21. If the removed cover is broken or damaged, the process proceeds to step S20, and the speaker 15 announces the message "Cover is broken."

In step S21, it is confirmed whether the removed part is the last part to be removed in the disassembly work according to the maintenance and inspection information. If it is the last part to be removed, in step S22, the message "Disassembly work is completed" is announced by the speaker 15. If there are still parts remaining to be removed, the process proceeds to step S12.

The flow of assembly work for brake work using the part mounting table 10 will be explained using Figure 5.

Before the assembly work begins, all the parts of the brake device are removed and placed in the display area 13A of the display unit 13 of the part placement table 10. First, in step S31, the image G of the part to be installed, which is displayed in the display area 13A of the display unit 13 according to the maintenance and inspection information acquired in step S10 during the disassembly work, is made to flash.

In step S32, the message "Please install the brake switch cover" is announced through the speaker 15. In step S33, the cover is installed by the worker.

In step S34, if the part that was installed last in the assembly work has been installed normally according to the maintenance and inspection information, the speaker 15 announces the message "Assembly work is completed." If there are still parts to be installed, the process proceeds to step S31.

The present invention is not limited to the above-described embodiment and its variations, and various modifications and improvements are possible within the scope of the claims of this application.

REFERENCE SIGNS LIST 10 Part placement platform, 11 Tray, 11A Bottom surface, 11B Wall, 12 Main body, 13 Display, 13A Display area, 14 Camera, 15 Speaker, 20 Control unit, 21 Maintenance and inspection information acquisition unit, 22 Disassembled part teaching unit, 23 Part recognition unit, 24 Part determination unit, 25 Assembly part teaching unit, 26 Maintenance and inspection history recording unit

Claims (3)

A component placement table on which a plurality of components to be removed from an apparatus during disassembly of the apparatus are placed,
a display section in which, in a plan view, a plurality of display sections are formed in which display images of parts to be removed are displayed in a predetermined direction in the order of removal according to a disassembly procedure, and in which removed parts are placed in the display sections ;
a camera for photographing the removed part placed in the display section ;
a control unit that, when disassembling the device, displays the display image of the parts to be removed in the removal order according to the disassembly procedure in the display area of the display unit, recognizes the removed parts placed in the display area of the display unit from the captured image taken by the camera, and determines whether the parts to be removed are the same as the removed parts;
Equipped with
Parts placement stand. 2. The component mounting stand according to claim 1,
The control unit recognizes the removed part placed on the display section of the display unit from the captured image captured by the camera, and detects breakage or damage to the removed part.
Parts placement stand. 3. The component mounting stand according to claim 1,
the control unit, when assembling the device, causes the display images of the parts to be installed in the installation order according to the assembly procedure in the display area of the display unit to emit light or blink.
Parts placement stand.

Images