JPH084998B2 - Work quality control device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a work quality control device for controlling work processing quality in an automated production line for assembling automobiles and the like. More specifically, for example, the automated production line is configured. An information network of information about defective work points when a workpiece is processed or assembled by an automatic machine such as various robots at a predetermined processing station and / or information on repair work when an operator repairs the defective work points. The present invention relates to a work quality control device configured to visually display on a display provided in a repair processing station downstream to perform a repair work.

[Background of the Invention] With the recent development of electronic devices, automation of production lines has been advanced in order to contribute to improvement of the quality of various products. In particular, in recent production lines, multiple processing stations including numerical control machine tools and automatic machines such as various robots are installed, and an automatic warehouse or a self-propelled trolley for the processing stations is provided. By connecting the equipment, supply of workpieces such as workpieces, workpieces and parts materials, processing by automatic machines at each processing station, control of assembly and distribution control between each processing station, and production volume An FA system (factory automation system) that controls and manages all management and the like with a computer for production management has been introduced. The FA system configured in this way has also been adopted in automobile assembly and production lines.

By the way, in the assembly production line configured as described above, it is an efficient production line to produce a predetermined number of products or semi-finished products within a predetermined time, that is, to carry out work by setting a tact time. Is a mandatory condition for building. For optimizing a warehouse space such as a luggage rack for supplying parts to the production line, optimizing a storage space for products and the like output from the production line, and further for carrying in and carrying out work or products. The main reason is that it is possible to optimize the number of transportation means and transportation means.

However, in the assembly production line according to the conventional technology configured as described above, the production control in the narrow sense such as the control of the operation of the automatic machine, the control of the physical distribution and the management of the actual number of production is configured with emphasis. When a defective assembly of a work occurs in an automatic machine, the workpiece cannot be delivered to a downstream processing station unless the defective assembly is repaired at the processing station where the automatic machine is installed. Inconvenience is inherent. For this reason, in the worst case, there is a concern that a situation may arise in which the tact feeding of the production line has to be stopped.

[Object of the Invention] The present invention has been made to overcome the above-mentioned inconveniences, and is processing (assembly) arranged along a production line.
The quality information of the work result of the automatic machine that constitutes the station is associated with the work location and recorded as work result data one by one, and the work result data is transmitted to the repair processing station in the downstream through the information network, and the defective work location is recorded in the downstream. When the automatic machine that is configured to display on the display installed in the repair processing station of the above, and that constitutes the predetermined processing station, causes a work defect during the processing or assembly of the work. Even when the predetermined takt time has passed, it is possible to convey the work containing the defective work part to the repair processing station downstream, and to repair the defective part at the repair processing station downstream, thereby enabling the production line. It is not necessary to stop or adjust the tact feeding of the And to provide a work quality control system that can be avoided.

[Means for Achieving the Object] In order to achieve the above object, the present invention relates to an automatic processing station including one or more automatic machines for processing a work, and a manual processing for processing the work by a manual operation. A work quality control device in a production line in which these processing stations are appropriately arranged, and these processing stations are connected by an information network. At least one of the manual processing stations is configured to perform a predetermined restoration work at a predetermined work time. A repair processing station that sets a working time with time taken into consideration, and repairs a defective work location of a work carried in from an upstream processing station; and a work performed by the automatic machine provided on the automatic machine and performed on the work. A work result detecting means for outputting work result data indicating whether the work is a normal work or a bad work, A machining located on the repair processing station and a final processing station located at the final stage of the production line, and located on the upstream side of the repair processing station or the final processing station when a predetermined work is loaded into the processing station. Work result display means for receiving and displaying the work result data from the work result detecting means arranged in the station via the information network, and attached to the work result display means and displayed on the work result display means Display data correction means for correcting the work result data to normal data when a repair work is performed on a defective work location based on the work result data thus obtained.

[Embodiment] Next, the work quality control apparatus according to the present invention will be described in detail below with reference to preferred embodiments, with reference to the accompanying drawings.

FIG. 1 is a diagram showing a schematic configuration of a production line to which a work quality control apparatus according to the present invention is applied. Here, an automobile assembly line will be used as an example for explanation.

The production line 10 is a main network 12 which is an information network for data transmission using optical fiber cables or the like.
And sub-networks 14a to 14c, which are information networks for data transmission, provided for each of the plurality of assembly lines 13a to 13c. Main network 12
The production management host computer 16 of the production line 10 is connected to the main network 12 and the sub-networks 14a to 14c between the sub-computers 18a to 18c (hereinafter, Data manager) is installed. Here, the data managers 18a to 18c have a memory (not shown) that stores all the data received on the current day by adding a predetermined serial number to the data and transmitting all the data with the serial number. .

The sub-networks 1a to 14c are self-propelled carriages (not shown) traveling along the respective assembly lines 13a to 13c.
Position, speed, and control contents executed in each processing (assembly) station STa _{1 to} STa _n , STb _{1 to} STb _n and STc _{1 to} STc _n (hereinafter, processing stations STa _{1 to} STc _n ) are centrally managed. The control panels 20a to 20c (hereinafter referred to as the entire panel) including a sequencer and the like are arranged, and various automatic machines (robots, etc.) arranged in the respective processing stations STa _{1 to} STc _n are provided with self-propelled carriages. Depending on the driving
That is, sequencers 22a to 22c (hereinafter referred to as block boards) that deliver control information in synchronization with the loading of the work are connected.

In addition, in the production line 10, the processing station
Among STa _{1 to} STc _n , the processing stations STa ₁ , STa _4, etc. are the processing stations in which the work by the workers M ₁ , M ₂ (see FIG. 2) is performed, and thus the present embodiment In the production line 10 according to the above, a processing station in which manual work is executed is appropriately arranged. In this case, for example, the processing station STa ₄ is a repair processing station capable of performing repair work in addition to the manual work of the work W, and the processing time at the processing station STa ₄ is the normal manual work time. In addition to this, a predetermined repair work time required for the repair is added. Further, in the present embodiment, the second processing station STa ₂ is a processing station for mounting the sunroof on the work W as the body of the automobile, and the third processing station STa ₃ is a processing station for mounting the instrument panel.

Further, in each of the assembly lines 13a to 13c, line side computers 24a to 24g having displays 23a to 23g are arranged along the assembly lines 13a to 13c, and the line side computers 24a to 24g are processing stations STa _{1 to} quality monitor for monitoring the quality of the assembly work result in STc _n, are used as a management monitor or the like of the transition state of the working result data model verification monitor or an automatic machine. In this case, the line side computer 24
The a to 24 g are directly connected to the main network 12. Further, management computers 26 and 28 are connected to the main network 12 and are used as a management monitor of the operating status of each of the assembly lines 13a to 13c and the transition of the cumulative production number on the day.

FIG. 2 is a diagram showing a detailed configuration of the production line 10 shown in FIG. As will be understood from FIG. 2, the host computer 16 has a work W input to the production line 10 concerned.
Model data file 50 that stores model data corresponding to
Is provided. In this case, a label printed with a bar code for identifying the model number information of the work W is attached to the work W (as described above, the body of the car in this embodiment), When W is introduced into the first processing station STa ₁ that constitutes the production line 10 by the drop lifter 44, the model number information is input to the host computer 16 via the main network 12 by an input device such as a bar code reader (not shown). To be done. Therefore, the host computer 16 reads model data corresponding to the model number information from the model data file 50, for example, model data composed of data such as engine identification number, frame identification number and predetermined assembly specification, etc. Delivered via 12 to the line side computer 24a. The line side computer 24a stores the model data.

The host computer 16 further includes a display 23a constituting the line side computers 24a to 24g.
A data filter 54 for quality monitoring, which stores the work result display charts displayed in FIGS. Here, the work result display diagram means, as shown in FIGS. 3 and 4, a work W conveyed in the production line 10, that is, a component (sunroof, instrument panel) to be mounted on a body of an automobile. , Bumpers, etc.) and a drawing for instructing the quality of tightening based on the assembly specifications. These are recorded in the quality monitor data file 54 as external shape display data and work site display data. There is.

FIG. 3 shows a work result display diagram 201 of the sunroof 200 assembled at the second machining station STa ₂ , and FIG. 4 shows a work result display diagram 209 of the instrument panel 208 assembled at the third machining station STa ₃ . There is. In the figure, the small circles are bolt fastening points 202a, 202b, 204a to 20.
4d, 206a to 206d, 210a to 210c are shown. The bolt tightening points 202a, 202b correspond to the nut runner arranged on the first shaft 212 (see FIG. 2) of the robot RBa ₁ arranged at the second processing station STa ₂ , and the bolt tightening is performed. Points 204a to 204d and bolt tightening points 206a to 206d
Correspond to the nut runners arranged on the second shaft 214 and the third shaft 216, respectively. The work result display 201, 2
09 is a management table in the production management table group 52 described later.
After being associated with the quality history data recorded in 52e, it is sent to the line side computers 24a to 24g through the main network 12 and displayed on the displays 23a to 23g as a quality monitor.

The host computer 16 further includes a production control table group 52, in which the control tables 52a to 52g respectively include production order data, production performance data, tracking data, self-propelled trolley operation data, quality history data, and equipment. The failure data and the production plan data are recorded, and the management table 52h includes the configuration of each assembly line corresponding to the sub-networks 14a to 14c and each processing station STa _{1 to}
The common data such as the configuration of manufacturing equipment such as an automatic machine arranged in STc _n , operation pattern information of the manufacturing equipment, and actuator type is recorded. In this case, the tracking data is data for controlling the trolley so that the trolley can smoothly travel in the assembly lines 13a to 13c without collision in correspondence with the self-propelled trolley operation data. This tracking data is distributed to the entire boards 20a to 20c.

The common data stored in the management table 52h is from the host computer 16 through the main network 12, the data managers 18a to 18c, and the sub-networks 14a to 14c to the entire boards 20a to 20c and the block boards 22a to 22.
and sent via the main network 12
It is sent to the line side computers 24a to 24g and the management computers 26 and 28, and stored in these control devices as needed.

Therefore, changes in the configuration of the assembly line due to differences in model grades, destinations, options, etc. produced by the production line 10, common data associated with the revision or abolition of information on each assembly manufacturing facility and its operation pattern, or changes in actuator types If the computer is remodeled, the host computer 16
Only the common data stored in the management table 52h provided in the is changed, added, or deleted, the common data after this correction, as described above, the main network 12,
Data managers 18a-18c and sub-network 14
The common data can be revised and abolished very easily by distributing it to each control device via a to 14c.

The production line to which the work quality control apparatus according to the present embodiment is applied is basically constructed as described above. Next, its operation and effect will be described.

First, the system of the production line 10 is started, a tact time is set in consideration of a predetermined production plan number, standard working time, break time, etc., and the production line 10 is operated at the tact time. In this case, in the processing station where the work is manually performed, such as the fourth processing station STa _4, the tact time is set including the repair work time in addition to the time for performing the predetermined work.

When the work W input through the drop lifter 44 under such preparation is mounted on a self-propelled carriage (not shown) and reaches the first processing station STa ₁ , the work W is
Identification data relating to a trolley number is read from a self-propelled trolley equipped with the ‘s’ by a not-shown input means and sent to the entire board 20a. The text content consisting of the identification data related to this dolly number is transmitted from the entire board 20a to the line side computer 24a via the sub-network 14a, the data manager 18a, and the main network 12, and the transmission data 100 (fifth
(See the figure). In this case, as shown in the figure, the data manager 18a assigns a serial number A-1 to the text contents to transmit the data to the line side computer 24a, and the transmission data 100 to which the serial number A-1 is assigned. Is stored in a memory (not shown) in the data manager 18a.

When the line side computer 24a receives the transmission data 100 with the serial number A-1 having the identification data relating to the truck number as the text content, the line side computer 24a transmits the identification data relating to the truck number previously transmitted from the host computer 16 and stored. When the result of matching is matched, the fact is transmitted to the host computer 16. The host computer 16 which has received the data relating to the collation result provides the model data for the work W mounted on the truck corresponding to the truck number to the main network 12 and the data manager 18.
block board 22a while transmitting to the entire board 20a via a
Send to. The model data includes the work W, that is, the frame number (truck number) for identifying the vehicle. Even in this case, the data manager 18a adds the serial number A-2 to the model data.
Is added and transmitted as transmission data 100 and is recorded in the memory (see FIG. 5). At the first processing station STa ₁ , work M ₁ also carries out confirmation and collation work between the bogie number of the self-propelled carriage and the frame number of the work W mounted on the self-propelled carriage. It is expected.

The whole board 20a has a number of storage areas corresponding to the processing stations STa _{1 to} STc _n . In this case, the truck number and model data are stored as a data pair in the first storage area. This data pair is sequentially moved to the second storage area, the third storage area, ... In synchronization with the movement of the self-propelled carriage. on the other hand,
The model data transmitted to the block board 22a is the robot RBa ₁ which is an automatic machine that constitutes the processing stations STa _{1 to} STa _n.
To RBa _m attached to the robot controller Ra _{1 to} Ra _m
Sent to.

Robot controller Ra ₁ to Ra _m selects the pre-programmed model corresponding operation pattern program according kind data from the block plate 22a, the processing station STa ₁ to the robot to perform the work assigned to STa _n RBa ₁ Through RBa _m . And block board 22
a robot controller Ra ₁ through sub-tasks result data in tact time sent from Ra _m network 14a
The data manager 18a sends the data to the host computer 16 via the main network 12. As shown in FIG. 5, the text contents of the work result data are, for example, first to third shafts 212 provided with a torque sensor using a strain gauge, a timer, and a nut runner incorporating a work quality judging means. Robot RBa ₁ with 214, 216
Etc., reference numbers related to the robot RBa ₁ , axis numbers of the first to third axes 212, 214 and 216 of the robot RBa ₁ , the tightening torque value related to the torque sensor, and the tightening time related to the tightening torque value. And the frame number given to the work W and the data related to the "OK" mark when the tightening is properly done, and the data related to the "NG" mark tightening judgment when the tightening is improper. Is. Here, the tightening determination being “NG” means, for example, the case where the predetermined tightening torque is not reached within the predetermined tightening time, and the work result data 102 of the transmission data 100 shown in FIG. The tightening points 202b, 204b, 206c and the instrument panel 208 related to the sunroof 200 in the range
Among them, the tightening point 210c is the corresponding defective work point. Such a defective work location occurs, for example, when cutting waste remains in the screw hole of the work W. Then, in the data manager 18a, to these work result data 102,
The serial numbers A-3 to A-10 are given and transmitted to the host computer 16 as transmission data 100.

In this case, the host computer 16 determines the continuity of the serial numbers A-3 to A-10 in the transmission data 100. If it is determined that there is a missing number in the middle of the consecutive numbers, the missing number recorded in the data manager 18a is retransmitted to the data manager 18a by retransmitting the transmission data 100 related to the missing number. It is possible to acquire the complete transmission data 100 relating to. The serial number A-
The transmission data 100 related to Nos. 3 to A-10 are quality history data as work result data, and the quality history data is recorded in the management table 52e for recording quality history data in the production management table group 52 and the quality monitor is also provided. Sent to the data file 54 for use. In this case, the host computer
16 is a tightening point 202b, 20 in the work result display drawings 201, 209 recorded in the quality monitor data file 54.
4b, 206c and 210c are set to data corresponding to red display, and the other tightening points 202a and 204a are set to data corresponding to blue display.

Further, the block board 22a is a robot controller Ra _{1 to}
When the ra _m receives a signal relating to the completion of the operations in the processing station STa ₁ to the STa _n, that information across panel
Sent to 20a. The whole board 20a collectively manages the self-propelled carriages that travel in the assembly line 13a corresponding to the sub-network 14a, and constantly grasps and controls the self-propelled carriages that move between the assembly stations, and the self-propelled carriages are automatically controlled through the block board 22a. A moveable signal of the trolley is sent to the traveling trolley.

As a result, the self-propelled carriage travels to the next step, that is, toward the downstream processing station. In this case, since the tightening failure has occurred in the second and third processing stations STa ₂ and STa ₃ , the work result display diagrams 201 and 209 relating to the tightening failure are sequentially displayed in the fourth processing station STa _4.
It is displayed on the display 23b which constitutes the line side computer 24b arranged on the side of.

The display on the display 23b is shown in FIGS. 6 and 7. The displays of FIGS. 6 and 7 are called quality monitor displays.
FIG. 6 shows a display 23b displaying a work result display diagram 201 showing a work defect occurring at the second processing station STa ₂ , which is one of the tightening points 202a, 202b, 204a to 204d and 206a to 206d. The letters R and B surrounded by small circles mean that the small circles are displayed in red and blue, respectively. As is clear from the figure, the tightening points 202b, 204b, 206c related to defective tightening are displayed in red R, and the other tightening points related to normal tightening are displayed in blue B.

Therefore, the worker M ₂ determines that the defective fastening points 202b, 204b, 20
The correction work of 6c is performed, for example, after removing the cutting chips remaining in the screw hole of the work W, the tightening work by the nut runner is performed to repair the defective portion.

Here, a transparent touch screen 304 having a movable electrode film 300 and a fixed electrode film 302 as shown in FIG. 8 is attached to almost the entire surface of the displays 23a to 23g. The electrode films 300 and 302 shown in the figure include transparent electrodes 306 and 307, a dot spacer 308 and a lead cable 3.
10 and 312 are attached, and the lead cables 310 and 312 are connected to the line side computers 24a to 24g. In the transparent touch screen 304, the address on the displays 23a to 23g of the XY matrix type is determined by lightly pressing the movable electrode film 300 side with a finger.

Therefore, the worker M ₂ inputs data regarding the repaired portion. This data input can be performed by lightly touching the touch screen 304, that is, a predetermined position on the display 23b with a finger. As shown in FIG. 6 and FIG. 7, five touch keys are prepared on the display 23b, and when all the defective tightening points 202b, 204b, 206c are to be repaired, touch all the correction keys 224. Then touch the confirmation key 228. Whenever these keys are touched, the color of the key itself changes, and the small circles of the defective tightening points 202b, 204b, 206c are changed to insulation G, and the indication of insulation G indicates the defective tightening points 202b, 204b, 206c. It is understood that this is the place where the tightening was done properly by the repair (see Fig. 9).

If the defective fastening points 202b, 204b, 206c have been repaired within the takt time but the fastening point 206c remains defective, first, the fastening point 20b
Touch the small circles displaying 2b and 204b with a finger, and then touch the partial modification key 226 and the confirmation key 228 in that order. As a result, the small circles at the tightening points 202b and 204b are changed to green G, and the small circles at the tightening point 206c remain red R. This tightening point 206c can also be used for repair work using the quality monitor in the same manner at a processing station where the next manual work is performed, for example.

Further, when the tool for repairing the defective tightening points 202b, 204b, 206c is not present in the fourth processing station STa ₄ , etc., the forced movement key 222 and the confirmation key 228 are touched in this order with the finger, and the work W The automatic trolley that conveys the above may be allowed to travel to the downstream fifth processing station STa ₅ .

It should be noted that the cancel key 220 is used to cancel the input information when the repaired tightening point is touched by mistake. Therefore, in this case, the screen is restored.

After the repair work for tightening the sunroof 200 is completed,
On the display 23b, information relating to the tightening failure of the instrument panel 208 executed at the third processing station STa ₃ , that is, the work result display diagram 209 (see FIG. 7) is displayed, so that the worker M ₂ can The repair work may be performed in the same manner as the repair work for the sunroof 200.

Delivery of mobile and model data of the self-propelled carriage is performed, processing stations STa ₁ to disposed STa _n robotic RBa ₁ to RBa _m is against repeated by the processing station STa ₁ to STa _n of the above operation A predetermined work is performed corresponding to the model data, and a repair work is performed by using the quality monitor to ensure a predetermined work quality.

Assembly line 13 corresponding to sub-networks 14b and 14c
The configurations of b and 13c are the same as the configuration of the assembly line 13a for the sub-network 14a described above, and the entire boards 20b, 20c,
The functions of the block boards 22b and 22c are the same as those of the entire board 20a and the block board 22a. Data manager 18b, 18
c has the same configuration as the data manager 18a. That is, a data serial number to be transmitted / received is given, and the data with the serial number is stored in each memory. Here, the serial numbers of the data managers 18b and 18c are different from the serial numbers of the data manager 18a,
For example, B-1, B-2 ... And C-1, C-2 ... Are assigned so that the network from which the data originates can be identified.

In addition, among the above-mentioned work result data, the tightening judgment data “OK” or “NG” is confirmed by the line side computer 24g arranged on the side of the final processing station STc _n for all the work points, and thus the defective product Of course, you can prevent shipping.

In addition, _if the time for manual repair work is added to the processing time at the final processing station STc _n and the repair work possible at this final processing station STc _n is performed, defective products The occurrence can be further reduced.

In this case, according to the present embodiment, when the work is conveyed to the repair processing station on the downstream side without repairing the defective work at the predetermined processing station having the automatic machine, the touch screen attached to the repair processing station on the downstream side is used. The shape of the work, the defective work part, and the normal work part are combined and displayed graphically on the display. At this time, by displaying the defective work portion by color-coding such as red display, the worker can quickly know the defective work portion, and the effect that the repair work can be performed quickly can be obtained.

Also, the worker can easily input the repair history data by touching the repair work portion of the touch screen mounted on the display after performing the repair work. [Effects of the Invention] As described above, according to the present invention, the work result data and the defective work related to the normal work and the defective work related to the automatic machine constituting the processing (assembly) station arranged along the production line. The work result data after the work of repairing the above point is recorded one by one and transmitted to the downstream processing station via the information network. For this reason, if the repair work is not completed within the takt time, the work including the defective part of the work is transported to the downstream processing station, and the defective part is repaired at the downstream processing station. This makes it possible to prevent the production line in which the tact feed production work is being performed from being stopped and to build a highly reliable production line.

In addition, by reconfirming the work result data at the final processing station, shipment of defective products can be reliably prevented, and work conditions such as tightening torque can be uniformly managed, so a production line that can produce high quality products. The advantage of being able to build is obtained.

Although the present invention has been described with reference to the preferred embodiment, the present invention is not limited to this embodiment. For example, the above-mentioned defective work place is replaced with a color-coded display and a blinking display, etc. It goes without saying that various improvements and design changes can be made without departing from the scope of the present invention.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a production line to which a work quality control apparatus according to the present invention is applied, FIG. 2 is a diagram showing a detailed configuration of the production line shown in FIG. 1, and FIGS. 3 and 4 are FIG. 5 is a diagram showing a work result of a work assembled on the production line, FIG. 5 is an explanatory diagram of data including work result data transmitted and received from a data manager in the production line shown in FIGS. 1 and 2. FIG. 7 and FIG. 7 are explanatory diagrams of displaying a work result display diagram on a display arranged on the production line, and FIG. 8 is an explanatory diagram of a touch screen mounted on the display arranged on the production line, FIG. 9 is an explanatory diagram showing a display on the display when the repair work is performed based on the work result display diagram on the display shown in FIG. 10 …… Production line, 12 …… Main network 14a ～ 14c …… Sub network 16 …… Host computer 18a ～ 18c …… Data manager 20a ～ 20c …… Entire board, 22a ～ 22c …… Block board 24a ～ 24g …… Line-side computers 26, 28 …… Management computer 44 …… Drop lifter, 50 …… Model data file 52 …… Production control table group 54 …… Quality monitor data file 201 …… Work result display diagram, 202a, 202b… … Tightening points 204a to 204d, 206a to 206d …… Tightening points 209 …… Work result display diagram, 210a to 210c …… Tightening points 304 …… Touch screens STa _{1 to} STc _n …… Assembly processing station W …… work

 ─────────────────────────────────────────────────── --- Continuation of the front page (72) Inventor Mukuro Shimanaka 1-10-1 Shin-Sayama, Sayama-shi, Saitama Prefecture Honda Engineering Co., Ltd. (72) Inventor Hiroshi Hamano 1-10-1 Shin-Sayama, Sayama City, Saitama Prefecture Inside Engineering Co., Ltd. (72) Inventor Shinji Imai 1-10-1 Shin Sayama, Sayama City, Saitama Prefecture Inside Honda Engineering Co., Ltd. (56) Reference JP-A-2-65957 (JP, A)

Claims (1)

[Claims] 1. An automatic processing station including one or a plurality of automatic machines for processing a work, and a manual processing station for manually processing the work are appropriately arranged, and these processing stations are connected by an information network. A work quality control device in a production line, comprising at least one of the manual processing stations,
A work time is set that takes a predetermined work time into consideration with a predetermined work time, and a repair processing station that repairs a defective work point of a work carried in from an upstream processing station, and the automatic machine is provided. Work result detection means for outputting work result data indicating whether the work performed by the automatic machine is a normal work or a bad work, and a final processing unit located at the final stage of the repair processing station and the production line. The work result from the work result detecting means arranged in the processing station located upstream of the processing station when the predetermined work is loaded into the repair processing station or the final processing station. Work result display means for receiving and displaying data via the information network; Display data correction that is attached to the work result display means and corrects the work result data to normal data when repair work is performed on a defective work location based on the work result data displayed on the work result display means. A work quality control device comprising: