WO2018003571A1 - Flange fastening managing method, fastening managing system, fastening managing program, and fastening managing device - Google Patents

Abstract

The present invention consistently manages, in association with a flange, a gasket and a fastening condition from selection to implementation, and alleviates the burden of an operator while implementing a highly reliable flange fastening management. A flange fastening management method according to the present invention, in which a computer (controller 6) is used together with a fastening tool (4) for fastening flanges by using a plurality of bolts and nuts with a gasket (14) disposed therebetween, includes: a step of acquiring fastening condition information about the flange (12); a step of acquiring gasket information suitable for the flange; a step of collating the gasket information acquired from the gasket and determining whether the gasket is suitable for the flange; and a step of applying a fastening torque from the fastening tool to the bolts and nuts according to a fastening condition acquired from the fastening condition information when the gasket selected is suitable for the flange.

Description

Flange tightening management method, tightening management system, tightening management program, and tightening management device

The present invention relates to a tightening management technique for a flange connecting pipes, valves, pumps and the like.

フ ラ ン ジ Flange joints are used for connecting pipes and connecting pumps to pipes. A gasket is sandwiched between the flanges of the flange joint, and tightening is performed with bolts and nuts arranged at a plurality of locations between the flanges. For this tightening, a manual tool such as a torque wrench is used, and an electric screw tightening tool can be used.

Regarding this screw tightening tool, an electric motor is used as the rotational drive source, a current pulse is intermittently applied to this motor, the current value is controlled according to the detected torque, and the current pulse is generated when the target torque is reached. It is known to stop (for example, Patent Document 1).

Japanese Patent Laid-Open No. 2002-1676

By the way, if such a tightening tool is used, there is an advantage that uniform and uniform tightening is possible even if workers are different and work efficiency can be improved.

However, there are a wide variety of target flanges and gaskets, and it is essential to select a gasket that matches the flange. In addition, the tightening procedure for multiple bolts is not uniform, and even with the use of tightening tools, it is desirable to have a trained operator for reliable tightening. Therefore, the burden on the operator is excessive, and the flange tightening management is extremely important.

Therefore, in view of the above problems, an object of the present invention is to consistently manage from the selection and implementation of gaskets and tightening conditions in relation to the flange, to realize highly reliable flange tightening management and reduce the burden on the operator. .

In order to achieve the above object, according to one aspect of the flange tightening management method of the present invention, there is provided a flange tightening management method using a computer together with a tightening tool for tightening a plurality of bolts and nuts between flanges sandwiching a gasket. Obtaining the tightening condition information related to the step, obtaining the gasket information suitable for the flange, checking the gasket information and the gasket information obtained from the gasket, and matching the gasket to the flange. If the gasket selected for the flange is compatible with the step of determining whether to perform the tightening torque from the tightening tool to the bolt or the nut according to the tightening condition acquired from the tightening condition information. Including the step of imparting.
In the flange tightening management method, the step of obtaining the tightening torque applied to the bolt or the nut from the tightening tool and evaluating whether the tightening of the flange conforms to the tightening condition; and And presenting tightening result information including at least the tightening condition and the evaluation result in relation to each other.
In order to achieve the above object, according to one aspect of the flange tightening management method of the present invention, there is provided a flange tightening management method using a computer together with a tightening tool for tightening a plurality of bolts and nuts between flanges sandwiching a gasket. Obtaining tightening condition information associated with the flange tag, obtaining flange information including gasket information matching the flange from the flange tag, obtaining gasket information from the gasket or gasket tag, and the flange information. Checking the gasket information contained in the gasket or the gasket information acquired from the gasket or the gasket tag, selecting a tightening condition from the tightening condition information if the gasket is suitable for a flange, and the tightening Nut from tool Obtaining a tightening torque to be applied, evaluating whether the tightening of the flange conforms to the tightening condition, and presenting tightening result information including at least the tightening condition and the evaluation result related to the flange. Including.

The flange tightening management method may further include a step of outputting presentation information indicating whether or not the gasket is compatible with the flange.

The flange tightening management method may further include a step of determining whether the tightening conditions are satisfied during the tightening of the flange and a step of presenting the determination result.

The flange tightening management method may further include a step of obtaining worker information from a worker tag, and a step of relating the worker information to presenting the flange information, the tightening condition, and the evaluation result. .

In the flange tightening management method, the flange information may include at least information representing a tightening procedure together with a gasket suitable for the flange.

In the flange tightening management method, the tightening condition information may include the flange information and the gasket information.

The flange tightening management method may further include a step of forming a gasket from a gasket material and a step of attaching the gasket tag including the gasket information to the gasket.

To achieve the above object, according to one aspect of the flange tightening management system of the present invention, a tightening tool for tightening a plurality of bolts and nuts attached with a gasket sandwiched between flanges, and a tightening operation of the tightening tool A controller connected to the controller by wire or wirelessly, the controller obtains tightening condition information related to the flange from the server, and gasket information that matches the flange from the flange tag. Is acquired, gasket information is acquired from the gasket or gasket tag, the gasket information included in the flange information is compared with the gasket information acquired from the gasket or the gasket tag, and the gasket is compared with the flange. Is fit If the tightening condition is selected from the tightening condition information, the tightening torque applied to the nut is acquired from the tightening tool, the tightening of the flange is evaluated whether the tightening condition is met, and In addition, tightening result information including at least the tightening condition and the evaluation result is provided to the server.

In order to achieve the above object, according to one aspect of the flange tightening management program of the present invention, a computer is used to control a tightening tool that sandwiches a gasket between flanges and tightens with a plurality of bolts and nuts. Is a flange tightening management program for obtaining the tightening condition information related to the flange, obtaining the flange information including the gasket information suitable for the flange from the flange tag, and obtaining the gasket information from the gasket or the gasket tag. Acquired, the gasket information included in the flange information and the gasket information acquired from the gasket or the gasket tag, and if the gasket fits the flange, select the tightening condition from the tightening condition information, The tightening tool Obtaining a tightening torque applied to the nut, evaluating whether the tightening of the flange conforms to the tightening condition, and presenting tightening result information including at least the tightening condition and the evaluation result related to the flange; A function is realized in the computer.

In order to achieve the above object, according to one aspect of the flange tightening management apparatus of the present invention, a flange tightening management apparatus for use with a tightening tool that sandwiches a gasket between flanges and tightens with a plurality of bolts and nuts. The tightening condition information related to is acquired, the flange information including the gasket information matching the flange is acquired from the flange tag, the gasket information is acquired from the gasket or the gasket tag, and added to the nut from the tightening tool An information acquisition unit that acquires a tightening torque, and the gasket information included in the flange information is compared with the gasket information acquired from the gasket or the gasket tag. Select the tightening conditions from Comprising a processing unit flange tightening of assessing whether they comply with the tightening condition, and an information presentation unit for presenting the tightening result information including at least the clamping conditions and evaluation results in relation to the flange.

According to the present invention, any of the following effects can be obtained.

(1) By using a computer together with a tightening tool with a flange tightening function and a tightening monitoring function, multiple functions such as selection of flanges and gaskets, setting of tightening conditions, judgment of tightening status, recording of tightening results and presentation of the information It is possible to realize integrated processing management and flange tightening management that does not depend on the operator's experience and intuition.

(2) The gasket can be fitted to the flange, and tightening according to the input tightening conditions can be performed, so that tightening errors can be avoided and the burden on the operator can be reduced.

(3) If the gasket does not fit the flange, it is not possible to enter the tightening conditions, so the flange, gasket and tightening conditions can be managed consistently, and highly reliable flange tightening management can be realized.

(4) Since it is evaluated whether the tightening condition conforms to the tightening conditions based on the tightening result information, it is possible to reduce the dependence on the operator and achieve uniform tightening with small errors.

(5) Tightening information including tightening conditions and results of tightening evaluation is presented, and the tightening condition can be confirmed from this information.

It is a figure which shows the flange fastening management system which concerns on one Embodiment. It is a sequence diagram which shows the processing sequence of a flange fastening management system. It is a figure which shows an example of a flange fastening tool. It is a figure which shows a controller and a memory | storage part. It is a figure which shows a server computer. It is a figure which shows a worker information table, a worker tag, and worker tag information. It is a figure which shows a fastening condition table. It is a figure which shows flange information and a flange tag. It is a figure which shows gasket information and a gasket tag. It is a figure which shows fastening result information and a 1st log information table. It is a figure which shows a 2nd log information table. It is a flowchart which shows the process sequence of the fastening of a flange. It is a flowchart which shows the process sequence of a controller. It is a flowchart which shows the process sequence of the controller after clamping | tightening. It is a figure which shows the process and sorting of the gasket which concern on Example 2. FIG. It is a figure which shows the classification example of a gasket. 10 is a flowchart illustrating control of a flange tightening tool according to a third embodiment.

<Flange tightening management system>

FIG. 1 shows a flange tightening management system according to an embodiment. The configuration shown in FIG. 1 is an example, and the present invention is not limited to such a configuration.

The flange tightening management system 2 includes a flange tightening tool (hereinafter simply referred to as “tightening tool”) 4, a controller 6 and a server computer (hereinafter simply referred to as “server”) 8.

The tightening tool 4 is a means for generating a torque τ necessary for tightening, and a general electric tool such as a tightening tool or a nut runner may be used as the tightening tool 4. In the flange tightening portion 10 to be tightened, a gasket 14 is sandwiched between the flanges 12 of the flange joint, a plurality of bolts 16 are provided, and a nut 18 is attached to each bolt 16. The operator applies the torque τ according to the tightening condition from the tightening tool 4 by maintaining the device body 20 of the tightening tool 4 with the grip 22, fitting the socket 23 to the nut 18, and pushing the trigger 24. The flange 12 can be tightened by tightening the nut 18.

The controller 6 is connected to the tightening tool 4 by a cable 26. The controller 6 is an example of a tightening management device, and is composed of, for example, a computer. Instead of a wired connection using the cable 26, a wireless connection such as Wi-Fi may be used. The front panel unit 28 of the controller 6 is provided with a plurality of input keys 30 and a display unit 32.

In this controller 6, for example,
a) Acquisition of tightening condition information related to the flange 12,
b) Acquisition of flange information of the flange 12;
c) Acquisition of gasket information of gasket 14
d) Verification of gasket information included in the flange information and gasket information acquired from the gasket 14;
e) If the flange 12 and the gasket 14 are compatible, the tightening condition is selected from the tightening condition information, and the tightening condition is input to the tightening tool 4.
f) Acquisition of tightening information during or after tightening from the tightening tool 4, evaluation of whether the tightening meets the tightening conditions,
g) presentation of tightening result information including at least the tightening conditions and evaluation results in relation to the flange 12;
Etc. are executed.

The server 6 is linked to the controller 6 in a wired or wireless manner as indicated by a broken line 34. The server 8 is a computer that supports or manages the controller 6, and is constituted by, for example, a personal computer. As an example, the server 8 includes a processing unit 36, an input operation unit 38, and a monitor 40.

<Flange tightening management procedure>

FIG. 2 shows a processing sequence of flange tightening management using the tightening tool 4, the controller 6 and the server 8. In this processing step, each step is indicated by a step (Step: S) and a number. For example, the flange tag 42 is attached to the flange 12 before tightening, and gasket information is displayed. For example, the gasket tag 44 is attached to the gasket 14 before tightening, and gasket information is displayed.

The server 8 provides the above-described tightening condition information related to the flange 12 to the controller 6 (S101).

The controller 6 acquires flange information from the flange tag 42 (S102). This flange information includes gasket information representing a gasket that fits the flange to which the flange tag 42 is attached.

The gasket information is acquired from the gasket tag 44 (S103), and the gasket information included in the flange information is collated with the gasket information acquired from the gasket tag 44 (S104).

If the gasket 14 conforms to the flange 12 (YES in S105), the controller 6 selects a suitable tightening condition from the tightening condition information (S106), and inputs this tightening condition to the tightening tool 4 (S107).

If the gasket 14 is not compatible with the flange 12 (NO in S105), an error is displayed (S108), and the operator is urged to replace the gasket 14 with a suitable one.

The tightening tool 4 can tighten the flange 12 according to the input tightening conditions (S109). The operator can operate the trigger 24 to generate torque τ corresponding to the input tightening condition in the tightening tool 4 and apply it to the nut 18 of the flange tightening portion 10.

The tightening tool 4 detects the torque τ applied to the nut 18 as tightening information during or after the tightening (S110).

The controller 6 acquires tightening information during or after tightening from the tightening tool 4 (S111), and evaluates whether the tightening of the flange 12 meets the tightening conditions (S112).

The controller 6 provides the server 8 with tightening information including at least the tightening condition and the evaluation result in relation to the flange 12 (S113). The server 8 displays the provided tightening information on the monitor 40 (S114).

With this processing procedure, the relationship between the above-described processing a) to g) and the steps is as follows.
a) Acquisition of tightening condition information related to the flange 12: S101
b) Acquisition of flange information of the flange 12: S102
c) Acquisition of gasket information of gasket 14: S103
d) Collation of gasket information included in flange information and gasket information acquired from gasket 14: S104
e) If the flange 12 and the gasket 14 are matched, the tightening condition is selected from the tightening condition information, and the tightening condition is input to the tightening tool 4: S105, S106, S107.
f) Acquisition of tightening information during or after tightening from the tightening tool 4, and evaluation of whether the tightening meets the tightening conditions: S111, S112
g) Presentation of tightening result information including at least a tightening condition and an evaluation result in relation to the flange 12: S113, S114

<Effect of one embodiment>

(1) The controller 6 is provided with the tightening condition information provided from the server 8, and from this tightening condition information, the tightening condition suitable for the flange 12 and the gasket 14 can be given to the tightening tool 4. The tightening tool 4 can perform tightening according to the input tightening conditions, can avoid a tightening error, and can reduce the burden on the operator.

(2) The flange information acquired from the flange tag 42 includes gasket information indicating the gasket 14 to be matched. By comparing this gasket information with the gasket information acquired from the gasket tag 44, the gasket matches the flange. Therefore, it is possible to prevent mistakes in the selection of gaskets for the specified flanges, and to realize integrated management of flanges, gaskets and tightening conditions. As a result, highly reliable flange tightening management can be realized.

(3) If the gasket 14 selected for the flange 12 to be tightened does not fit, selection and input of tightening conditions for the tightening tool 4 cannot be performed. Can be prevented, the burden on the operator can be reduced, and the tightening reliability can be improved.

(4) Since it is evaluated whether the tightening condition conforms to the tightening conditions based on the tightening information during or after the end of tightening, the dependency on the operator can be reduced, and the tightening error can be avoided or reduced.

(5) Tightening information including tightening conditions and results of tightening evaluation can be recorded and presented, and it is easy to monitor and confirm the tightening condition during tightening. For example, from the tightening information recorded in the server 8 The past tightening condition can also be confirmed.

<Tightening tool 4>

FIG. 3 shows an example of the tightening tool 4 that can be connected to the controller 6. The tightening tool 4 includes a control unit 48, a motor 50, and a torque sensor 52 included in a general electric tool.

The controller 6 is connected to the controller 48 via the cable 26. The connection between the controller 48 and the controller 6 may be a wireless connection using Wi-Fi communication or the like instead of such a wired connection.

The control unit 48 includes a computer and a motor drive unit. The controller 48 is provided with control information such as tightening condition information from the controller 6, but tightening result information is obtained. The motor 50 is driven according to the input tightening conditions, and when the trigger switch 54 is turned on, a drive current is supplied to the motor 50.

In the tightening of the flange 12, the rotational torque of the motor 50 is applied from the rotating shaft 56 to the nut 18 described above via the socket 23. The rotating shaft 56 may be provided with a gear mechanism, and the rotational force of the motor 50 may be transmitted to the socket 23 at a desired gear ratio.

The torque sensor 52 detects the torque τ from the motor 50 or the rotating shaft 56. This detected torque τ is applied to the control unit 48 and provided to the controller 6 through the control unit 48. This detected torque τ is an example of tightening result information.

The torque sensor 52 may detect the tightening torque τ of the bolt 16 and the nut 18 and may be provided outside the tightening tool 4.

<Controller 6>

FIG. 4A shows an example of the controller 6. The controller 6 is a control means for the tightening tool 4 and is an example of a flange tightening management device.

The controller 6 is configured by a computer and includes a processor 74, a storage unit 76, an input / output unit (I / O) 78, an input operation unit 80, a communication unit 82, and a display unit 84.

The processor 74 is an example of a processing unit and an information acquisition unit, and performs information processing such as an OS (Operating System) and a flange tightening management program stored in the storage unit 76. This information processing includes acquisition of tightening condition information from the server 8, input and acquisition of tightening conditions to the tightening tool 4, acquisition of tightening result information from the tightening tool 4, monitoring and evaluation of tightening conditions, and display of evaluation results. Control of output of tightening result information is included.

The storage unit 76 is used for storing an OS, a program, tightening condition information, detection information, and the like, and includes a ROM (Read Only Memory) and a RAM (Random Access Memory). The storage unit 76 is provided with a storage area 76-2 in addition to the temporary storage area 76-1. A storage element capable of holding stored contents may be used for the storage unit 76.

The I / O 78 is controlled by the processor 74 and used for input / output of control information. The communication unit 82 is used, for example, for connection to the server 8 or the like by radio. For example, a barcode reader 86 and a removable external memory 88 are connected to the I / O 78 as external devices. The barcode reader 86 is an example of an information acquisition unit that acquires information using a barcode. The external memory 88 is a log information take-out memory. For example, a USB (Universal Serial Bus) memory may be used.

The input operation unit 80 includes a key switch, a touch sensor, and the like, and is used for input information input trigger, output information extraction trigger, mode switching, and the like.

The communication unit 82 is an example of an output unit, is controlled by the processor 74, and is used for wireless connection with the external devices such as the tightening tool 4 and the server 8, and for Internet connection.

The display unit 84 is an example of an information presentation unit, and includes, for example, a green lamp 84-1 and a red lamp 84-2. The display unit 84 is controlled by the processor 74, and as a result of the state evaluation, the green lamp 84-1 is turned on when normal, and the red lamp 84-2 is turned on when abnormal.

FIG. 4B shows an example of the storage contents of the storage unit 76. In the temporary storage area 76-1, flange information 90 obtained from the flange 12, gasket information 92 obtained from the gasket 14, worker information 94 obtained from the worker tag 93 (B in FIG. 6), obtained from the tightening tool 4. The tightening result information 95 and the like are temporarily stored.

A database such as a tightening condition table 96 and a log information table 98 is constructed in the storage area 76-2. The tightening condition table 96 records tightening condition information related to the flange. The log information table 98 records information such as tightening results and tightening determination results.

<Server 8>

FIG. 5 shows an example of the server 8. The server 8 is a support device for the controller 6 and is an example of a means for presenting log information.

The server 8 includes the processor 100, the storage unit 102, the input / output unit (I / O) 104, and the communication unit 106 in the processing unit 36, and the input operation unit 38 and the monitor 40 described above.

The processor 100 performs information processing such as an OS and a flange tightening management program in the storage unit 102. This information processing includes processing such as provision of tightening condition information to the controller 6, acquisition of log information representing the tightening result from the controller 6, and presentation of the log information table 98.

The storage unit 102 is used for storing an OS, a flange tightening management program, tightening condition information, log information, and the like, and includes a ROM and a RAM. The storage unit 102 may be a storage device such as a hard disk or a semiconductor memory capable of holding stored contents.

The I / O 104 is controlled by the processor 100 and used for input / output of control information. The communication unit 106 is used, for example, for connecting the controller 6 or the like by radio. For example, the above-described external memory 88 is connected to the I / O 104 as an external device.

The communication unit 106 is controlled by the processor 100 and is used for wireless connection with an external device such as the tightening tool 4 and the controller 6 and for Internet connection.

The input operation unit 38 is used to input input information, take out output information, change modes, and the like.

The monitor 40 is an example of an information presentation unit and a display unit, and is used to display the log information table 98, for example. The screen display unit of the monitor 40 may be provided with a touch panel 108 and input information corresponding to display information may be performed instead of the input operation unit 38.

<Worker information 94>

6A shows an operator information table. The worker information table 110 stores worker information acquired from a worker in charge of tightening by the controller 6. The worker information table 110 includes information such as a worker ID (IDentification), a user, and a worker name as an example of worker information. The worker ID is identification information that identifies the worker. The user is the company to which the worker belongs and the name of the company at the tightening point. The worker name is the name of the worker.

The worker information table 110 includes an ID part 110-1, a company name part 110-2, and a worker name part 110-3 as shown in FIG. 6A. The ID part 110-1 stores the worker ID. The company name section 110-2 stores the name of the company to which it belongs. The name of the worker is stored in the worker name portion 110-3.

The worker information to be stored in the worker information table 110 may be acquired from the worker tag 93 worn by the worker 112 as shown in FIG. If the barcode 116 is displayed on the worker tag 93, the worker tag information 118 may be read using the barcode reader 86. FIG. 6C shows the worker tag information 118 that has been read. The worker tag information 118 includes the worker ID, company name, and worker name to be stored in the worker information table 110 described above.

When the controller 6 acquires the worker information from the worker tag 93 and forms the worker information table 110 at the start of tightening, the worker information becomes a tightening record by associating with the above-described flange information.

<Tightening condition table 96>

FIG. 7 shows an example of the tightening condition table 96. The tightening condition table 96 stores tightening condition information and is provided from the server 8 to the controller 6. The tightening condition table 96 includes application location information, flange information 90, gasket information 92, tightening portion information, and tightening condition information as an example of tightening condition information. The application location information is information such as the implementation line. The flange information 90 is individual information used for identifying the flange 12. The gasket information 92 is individual information used for identifying the gasket 14. The tightening portion information is information such as the number of bolts in the flange tightening portion 10. The tightening condition information includes tightening condition identification information and the number of times of tightening.

As shown in FIG. 7, the tightening condition table 96 includes a line information section 96-1, a flange information section 96-2, a gasket information section 96-3, a bolt information section 96-4, and a tightening condition information section 96-5. included.

In the line information section 96-1, for example, identification information of a tightening portion such as a piping line such as Line A, Line B,. The flange information section 96-2 stores a flange number for identifying the flange 12, a flange dimension, and the like. The gasket information part 96-3 stores a gasket product number for identifying the gasket 14, a gasket size, and the like. The bolt information section 96-4 stores the number of bolts and the like. The tightening condition information section 96-5 stores a tightening condition number for identifying the tightening condition, Pass1, Pass2,.

Since the tightening condition table 96 is provided as tightening condition information from the server 8, the controller 6 can grasp the necessary tightening condition information regarding the tightening with the server 8 and can use the tightening condition information independently.

<Flange information 90>

8A shows the flange 12 and the flange tag 42. FIG. In this example, the flange tag 42 is hung on the flange 12 by the lead 120.

The bar code 122 is displayed on the flange tag 42, and if the bar code 122 is read by the bar code reader 86, the flange tag information 124 can be acquired.

The flange tag information 124 is an example of flange information, and includes flange information and related information stored in the tightening condition table 96 described above. This relationship information includes line information and gasket information.

As shown in FIG. 8B, the flange tag information 124 includes application location information, flange identification information, gasket information, and tightening condition information. In the line name 124-1, for example, identification information of a tightening point such as a piping line such as Line A, Line B,. The flange information 124-2 stores a flange number for identifying the flange 12, a flange dimension, and the like. In the gasket information 124-3, a gasket product number for identifying the gasket 14 is stored. The tightening procedure 124-4 stores a tightening condition number for identifying the tightening condition.

Since the gasket information having a close relationship with the flange 12 is included in the flange tag information 124 as described above, the gasket 14 that is automatically matched can be specified by selecting the flange 12. Then, by comparing the gasket information included in the flange tag information 124 with the gasket information obtained from the gasket tag 44, it is possible to quickly determine whether or not the gasket 14 is suitable for the flange 12, and the highly reliable compatibility. Judgment can be made.

<Gasket information 92>

9A shows a gasket case. The gasket case 126 is, for example, a synthetic resin case provided with a lid 130 that can be opened and closed on a case main body 128 that can accommodate the gasket 14. The lid 130 is provided with a transparent window 132. The gasket 14 can be visually confirmed from the transparent window portion 132.

A gasket tag 44 is provided in the gasket case 126, and a barcode 134 is displayed on the gasket tag 44. By reading the barcode 134 with a barcode reader 86, gasket tag information 136 can be acquired.

The gasket tag information 136 includes gasket information 92. The gasket tag information 136 stores the gasket product number and dimensions as shown in FIG. 9B.

<Tightening result information>

10A shows an example of tightening result information. The tightening result information 138 includes a tightening condition 138-1, a construction date / time 138-2, an error determination result 138-3, a first tightening result 138-4, and a second tightening result 138-5.

The tightening result information 138 is specified by, for example, Line A as the tightening condition 138-1 and application location information. In addition, the tightening condition of each bolt is stored. The tightening date and time 138-2 displays the tightening date and time or time zone. The error determination result 138-3 displays a determination result as to whether the tightening state matches the tightening condition. The first tightening result 138-4 displays the measured torque value, and the second tightening result 138-5 displays the nut rotation angle.

The tightening result information 138 includes the result information in the log information table 98-1 (B in FIG. 4) as the tightening result acquired from the tightening tool 4, as shown in FIG. Both the result information in the log information table 98-2 (B in FIG. 4) to which the relevant information such as the work date and time is added are included.

As shown in FIG. 10B, the log information table 98-1 includes application location information, flange information 90, gasket information 92, tightening portion information, and tightening condition information as in the tightening condition information (FIG. 7). The tightening result is added in relation to these. The tightening result is tightening result information acquired from the tightening tool 4.

The log information table 98-1 includes a line information section 98-11, a flange information section 98-12, a gasket information section 98-13, a bolt information section 98-14, a tightening condition information section 98-15, and a tightening result information section. 98-16 and worker ID part 98-17 are included.

As shown in FIG. 11, the log information table 98-2 is similar to the log information table 98-1 (B in FIG. 10), and includes a line information portion 98-21, a flange information portion 98-22, and a gasket information portion 98-23. , A tightening condition information section 98-25, an operator ID section 98-27, a tightening date / time section 98-28, an error determination section 98-29, a first peripheral tightening result section 98-30, and a final peripheral tightening result section. 98-31 and a lap number section 98-32 are provided. The worker ID part 98-27 stores the same worker ID as the worker ID part 98-17. Thereby, an operator is specified in relation to the flange 12. In the log information table 98-2, unlike the log information table 98-1, the bolt information section 98-14 is omitted.

The tightening date and time section 98-28 stores the tightening date and time. Thereby, the tightening date is specified in relation to the flange 12. The error determination unit 98-29 displays a determination result as to whether or not the tightening state conforms to the tightening condition. If it is “OK”, it conforms, and if “NG”, it is impossible. In the first circumferential tightening result portion 98-30, the first round tightening result (torque) of the circumferential tightening of the plurality of bolts 16 on the flange 12 is displayed. In the final circumferential tightening result section 98-31, the tightening result (torque) of the final circumference of the circumferential tightening of the plurality of bolts 16 is displayed. In the lap number portion 98-32, the lap number is displayed.

<Tightening procedure>

FIG. 12 shows a tightening procedure of the flange tightening management system 2 (FIG. 1) according to the first embodiment.

In this procedure, as shown in FIG. 12, worker information 94 is acquired at the start of tightening (S201). In order to acquire the worker information 94, the worker information 94 may be read from the barcode 116 of the worker tag 93 by the barcode reader 86.

After this step, the controller 6 determines whether the worker information 94 has been read (S202). If the worker information 94 has not been read (NO in S202), an error is displayed on the display unit 84 (S203), for example, the red lamp 84-2 is turned on. Thereby, the worker 112 is prompted to re-read the worker information 94, and the barcode 116 can be read again by the barcode reader 86. As a result, if the worker information 94 can be acquired, the red lamp 84-2 is turned off and the green lamp 84-1 is turned on to display that the worker information 94 has been acquired.

If the worker information 94 has been read (YES in S202), the flange information 90 is acquired (S204). In order to acquire the flange information 90, the flange tag information 124 (B in FIG. 8) may be read from the flange tag 42 using the bar code reader 86 in the same manner as the worker information 94. In this example, it is not determined whether the flange information 90 has been read. However, as in the case of the worker information 94 described above, a read error may be determined.

After reading the flange information 90, the gasket information 92 is acquired (S205). In order to acquire the gasket information 92, the gasket tag information may be read from the barcode 134 of the gasket tag 44 by the barcode reader 86.

After acquiring the worker information 94, the flange information 90, and the gasket information 92, it is determined whether the gasket 14 is suitable for the flange 12 (S206). That is, it is determined whether the gasket information 92 acquired from the gasket 14 matches the gasket information included in the flange information 90.

If the gasket 14 is not suitable for the flange 12 (NO in S206), an error is displayed on the display unit 84 (S207). For example, this error display turns on the red lamp 84-2. This prompts the operator 112 to reselect a suitable gasket 14. As a result, if a suitable gasket 14 is selected, the red lamp 84-2 is turned off and the green lamp 84-1 is turned on.

Thus, the gasket 14 that matches the worker information 94 and the flange information 90 is selected, and the preconditions for tightening are established. At this time, the tightening condition is automatically selected from the tightening condition information (S208), and the tightening condition for the tightening tool 4 is set by the controller 6.

When the tightening conditions are set, the nut 18 is tightened using the tightening tool 4 (S209). The controller 6 acquires tightening result information from the tightening tool 4 (S210). The result information includes the torque τ and the nut rotation angle tightening result described above.

The controller 6 determines whether the tightening result conforms to the tightening condition from the acquired result information (S211). If the tightening result does not match the tightening conditions (NO in S211), an error display is performed (S212). In the error display, the red lamp 84-2 is turned on to notify the operator 112 that a tightening result that matches the tightening condition is not obtained.

Then, the controller 6 records the tightening result including the error determination (S213). The tightening result is recorded in the log information table 98-1 (S214), and this process is completed.

The recorded information can be output to the external memory 88, and the log information table 98-2 described above can be displayed on the monitor 40 of the server 8 by attaching the external memory 88 to the server 8.

<Processing procedure from tightening preparation to tightening>

FIG. 13 shows a processing procedure from tightening preparation to tightening. Before tightening the flange, obtain worker information 94 from the worker tag 93 (S301), then obtain flange information 90 from the flange tag 42 (S302), and then obtain gasket information 92 from the gasket tag 44 (S303). ), The gasket information included in the flange information 90 and the gasket information representing the actual gasket 14 are collated and determined (S304). In this collation and determination (S304), it is determined whether the gasket is suitable for the flange (S305). Thereby, it is determined whether or not the selected gasket matches the flange to be tightened.

If the gasket 14 is not suitable for the flange 12 (NO in S305), the red lamp 84-2 is turned on as an error display (S306), and the process returns to S303. That is, the worker 112 is informed by the lighting of the red lamp 84-2 that the gasket 14 is not suitable, and the worker 112 is prompted to replace the gasket 14.

If the gasket 14 is selected again, after the gasket information 92 is acquired from the gasket tag 44 in the gasket 14 (S303), the collation / determination (S304) is performed again. As a result, if the gasket 14 is compatible with the flange 12 (YES in S305), the green lamp 84-1 is turned on as a compliance display (S307), and the tightening condition can be selected (S308). That is, if the green lamp 84-1 is not lit, selection of the tightening condition is prevented.

In the selection of the tightening condition, the tightening condition table 96 stored in the storage unit 76 is referred to, and the tightening condition number is selected from the tightening condition table 96 (S308).

The tightening condition number is input to the tightening tool 4 (S309), and tightening is performed (S310). This tightening is performed by the operator 112 with the tightening tool 4.

<Processing procedures from tightening to log information output>

FIG. 14 shows a processing procedure from the tightening to the output of log information. The tightening result is acquired from the tightening tool 4 (S401), and the tightening result is temporarily stored in the temporary storage area 76-1 of the storage unit 76. This tightening result includes the torque detected by the torque sensor 52. A log information table 98-1 is created from the tightening result.

Referring to the tightening result, the tightening condition number X in the tightening condition table 96 is referred to, and the tightening result is determined (S402). In this determination, it is determined whether the tightening result matches the tightening condition (S403).

If the tightening result matches the tightening condition (YES in S403), the green lamp 84-1 is turned on as an indication that the tightening result is met (S404), and if the tightening result does not match the tightening condition (S403). NO), the red lamp 84-2 is turned on as an indication of nonconformity.

The log information table 98-1 is created based on the tightening result, the log information is organized and processed, and the log information table 98-2 is created (S405).

The log information table 98-2 can be written in the external memory 88, for example, and provided to the server 8 via the external memory 88 and presented (S406). The log information table 98-2 may be transferred from the controller 6 to the server 8 by radio.

<Effect of Example 1>

(1) Since the administrator provides the tightening conditions from the server 8 to the controller 6, it is possible to strictly manage the tightening conditions and build excellent traceability.

(2) Since the operator in charge of tightening the flange 12 is provided with the controller 6 storing the tightening condition information, it is possible to easily manage the tightening condition and reduce the burden on the worker.

(3) Since the tightening condition information is provided from the server 8 to the controller 6 when the flange is tightened, the tightening operation can be constrained to the tightening condition information in the controller 6, and the reliability of the tightening is improved.

(4) After the flange 12 is selected, the gasket 14 is selected, and the gasket information obtained from the gasket 14 is compared with the gasket information in the flange information to determine suitability. Can be selected.

(5) If the gasket 14 is incompatible, it is possible to prompt the operator to replace the gasket 14 by turning on the red lamp 84-2, and to select a suitable gasket 14.

(6) If it is not possible to confirm whether or not the gasket 14 is suitable after checking the gasket 14, the transition to the tightening condition provision stage is prevented, and after the flange 12 and the gasket 14 are determined, the tightening condition is selected. Therefore, consistent management of the flange 12, the gasket 14, and the tightening conditions can be realized.

(7) 適合 す る Suitable tightening conditions are automatically selected from the tightening condition information through the above condition (6) .Therefore, it is not necessary to force the operator to manage the tightening conditions. Can be reduced. It is possible to automate by avoiding the setting of tightening conditions depending on the experience and intuition of the operator, and it is possible to prevent troublesome work by writing instructions, input errors and tightening errors by writing instructions. Since this tightening condition can be provided individually and specifically from the server 8 to the controller 6, for example, it is possible to avoid a general work of tightening all bolts with the same torque, and to realize a precise tightening result. The torque management with high accuracy provided by the tightening condition information can be performed, and the tightening with the torque τ that is different for each bolt to be tightened can be reliably and efficiently performed. Highly accurate flange tightening management exceeding the management depending on the individuality and intuition of the operator can be realized.

(8) Since the flange information is acquired from the flange tag 42 attached to the flange 12 and the gasket information is acquired from the gasket tag 44 attached to the gasket 14, the reliability of the flange information and the gasket information is improved, and each information acquisition operation is performed. Can be reduced.

(9) By using an input device such as a barcode reader 86 by attaching an information code such as a barcode or QR code (registered trademark) to the flange tag 42 or gasket tag 44, the information can be acquired quickly and reliably. Can be increased.

(10) While the flange 12 is tightened, it can be determined whether the tightening condition is satisfied. In order to judge whether or not the tightening conditions are satisfied during tightening, there are component defects and work such as tightening defects, defective bolts 16 and 18, occurrence of defects due to tightening, improper tightening of the same bolt twice, incorrect tightening sequence, and forgetting tightening. It may include a defect quality determination. As a result of these sufficiency determinations, it is possible to determine whether or not the tightening result is appropriate (OK / NG) and to record the tightening result in the log information. Since these determinations and recordings are performed simultaneously in synchronism with the flange tightening, the work efficiency is not lowered and a highly reliable work result can be obtained.

(11) The tightening result including such suitability information is provided and recorded from the tightening tool 4 to the controller 6 and can be provided from the controller 6 to the server 8 as log information. The controller 6 can organize the tightening results and extract not only all information but also necessary information and edit it to create log information.

(12) The tightening result information is collected in the log information tables 98-1 and 98-2 and can be transferred from the controller 6 to the external memory 88. The log information table 98-2 can be presented by removing the external memory 88 from the controller 6 and mounting it in the server 8.

(13) By expanding the log information table 98-2, the administrator can easily know whether a tightening result that conforms to the tightening condition is obtained. In the log information table 98-2, it is possible to know the result of the error determination as the propriety information on the tightening result related to the flange 12. Since the tightening result includes detailed related information such as the work date related to the flange 12, the details of the work result can be easily known.

(14) Since the worker information is acquired in relation to the flange, it is possible to easily know from the work result which worker or construction company was in charge with the date and time. In particular, since the gasket information related to the flange 12 is judged to be appropriate before tightening, use of an incompatible gasket can be prevented beforehand.

FIG. 15 shows processing steps from formation of the gasket 14 to sorting. As shown in FIG. 15A, a plurality of types of gasket material plates 140-1, 140-2... 140-N are used as the raw material of the gasket 14 for forming the gasket 14.

As an example of molding process of gaskets 14-11, 14-12 ... 14-1N, 14-21, 14-22 ... 14-2N ... 14-N1, 14-N2 ... 14-NN .., 140-N are punched from the gasket material plates 140-1, 140-2,... 140-N, and as shown in FIG. -12 ... 14-1N, 14-21, 14-22 ... 14-2N ... 14-N1, 14-N2 ... 14-NN are created.

Each gasket 14-11, 14-12 ... 14-1N, 14-21, 14-22 ... 14-2N ... 14-N1, 14-N2 ... 14-NN is shown in FIG. As shown in FIG. 4, after being individually housed in suitable gasket cases 126-1, 126-2,... 126-N, a plurality of dedicated racks 142-1, 142-2,. Sorted and stored. Racks 142-1, 142-2,... 142-N are examples of sorting means.

The rack tags 144-1, 144-2,... 144-N are attached to the racks 142-1, 142-2,. The rack tags 144-1, 144-2,... 144-N may be used to identify the rack or the storage gasket.

FIG. 16 shows racks 142 sorted by line. In this example, a line A rack 142-A, a line B rack 142-B, a line C rack 142-C, and a line D rack 142-D set for each line as a plurality of dedicated racks are provided. The rack A for line A 142-A is used for line A and is distinguished from other lines. Similarly, the rack for line B 142-B to rack D for line D 142-D are used for line B to line D, etc. It is distinguished from those for the line.

Each rack 142-A... 142-D accommodates a gasket case 126 that accommodates the gasket 14 used in the corresponding line.

<Effect of Example 2>

(1) Each rack 142-1, 142-2 ... 142-N has gaskets 14-11, 14-12 ... 14-1N, 14-21, 14-22 ... 14-2N ... 14-N1, 14-N2,... 14-NN can be sorted and stored. For example, a predetermined number of gaskets can be stored, and the number of consumptions and the number of sufficiency can be managed.

(2) Necessary gaskets 14 for each line are sorted and stored in the rack A for line A 142-A, rack 142-B for line B, rack 142-C for line C, rack 142-D for line D Can do. Thereby, it is possible to prevent the gasket 14 from being inserted between the lines, and to realize highly reliable tightening management.

(3) Each rack 142-1, 142-2 ... 142-N, line A rack 142-A, line B rack 142-B, line C rack 142-C, line D rack 142-D The rack tag 144 is attached to the rack tag, and the rack tag 144 can identify the application destination and the gasket 14 to be stored.

(4) Racks 142-1, 142-2 ... 142-N, line A rack 142-A, line B rack 142-B, line C rack 142-C, line D rack 142-D Is recyclable and can provide the necessary gaskets 14 and their quantities to the construction site without excess or deficiency.

(5) Each rack 142-1, 142-2,... 142-N, rack A for line A 142-A, rack 142 for line B 142-B, rack 142 for line C In the rack 142-D for line C and line D, the change in increase / decrease can be visually confirmed by tightening work, so that forgetting to insert the gasket 14 can be prevented.

FIG. 17 shows a processing procedure for operation control of the flange tightening tool according to the third embodiment.

The tightening torque applied to the nut 18 from the tightening tool 4 is monitored by the torque sensor 52, and the sensor output can be acquired by the controller 6. In addition to the tightening torque information, the tightening state information includes the gasket 14 for the flange 12. In addition to the above-mentioned conformity and non-conformity, a) detachment of the socket 23 from the nut 18 and b) failure of the bolt 16 and the nut 18 may be included.

The removal of the socket 23 from the nut 18 in a) is a case where the socket 23 is detached from the nut 18 during tightening because the engagement of the socket 23 of the tightening tool 4 with the nut 18 is incomplete. In this case, the torque sensor 52 of the tightening tool 4 may be used as the detection means. The detected torque τ is an appropriate torque if it is within ± 0.5% of the set torque, for example, whereas the socket 23 The detected torque τ decreases at the moment when the torque is off, and the separation can be known. If the bolts 16 and nuts 18 b) are defective, tightening is insufficient due to rust or the like.

In the processing on the controller 6 side, during the tightening of the flange 12, the controller 6 acquires tightening state information from the tightening tool 4 as shown in FIG. 17 (S501).

The controller 6 determines whether or not such a tightening result or its state meets the tightening condition (S502). In this determination, it is determined whether the tightening meets the tightening conditions (S503).

If the tightening does not meet the tightening conditions (NO in S503), the red lamp 84-2 is turned on as an error display (S504), and the power supply to the motor 50 is instructed to be stopped as a measure for prohibiting the operation of the tightening tool 4 ( S505), the process returns to S501. Thereby, inappropriate work can be prohibited and a response can be requested from the worker.

If the tightening conforms to the tightening conditions (YES in S503), the green lamp 84-1 is turned on as the conformity display (S506), and tightening can be performed according to the tightening conditions.

Such a process can be performed before, during or after the tightening of the flange 12 and may be performed continuously from before the implementation to after the implementation.

<Effect of Example 3>

(1) During tightening, if the tightening conditions are not met, the driving of the tightening tool 4 is forcibly stopped, so that inappropriate tightening processing can be prevented in advance and the reliability of the tightening processing can be improved.

(2) During tightening, if the tightening conditions are not met, the drive of the tightening tool 4 is stopped by stopping the power supply, so that forced tightening can be prevented and unexpected situations can be prevented.

(3) In addition to improving the reliability of dredging, it is possible to improve the safety of workers.

[Other Embodiments]

(1) In the above embodiment, the worker information 94 is acquired before acquiring the flange information 90 and the gasket information 92. However, prior to the acquisition of the worker information 94, the flange information 90 and the gasket information 92 are acquired. May be.

(2) In the embodiments and examples, the controller 6 and the server 8 are described as independent devices, but the controller 6 may have the function of the server 8. That is, the controller 6 and the server 8 may be configured integrally.

(3) The mobile controller 6 may use a portable information terminal such as a smartphone.

(4) In the embodiment and examples, the controller 6 and the server 8 are set for one tightening tool 4, but the controller 6 and the server 8 may be set for a plurality of tightening tools 4. A plurality of controllers 6 may be provided with a single server 8.

(5) In the above example, worker information, flanges, tightening conditions, and evaluation results are presented in relation to flange information. However, flanges, tightening conditions, and evaluation results may be presented in relation to worker information. Good.
(6) In the above embodiment, gasket information is displayed using the gasket tag and the gasket information is acquired from the gasket tag. However, even if the gasket information is displayed directly on the gasket and the gasket information is acquired from the gasket, Good.

As described above, the most preferred embodiments and examples of the present invention have been described. The present invention is not limited to the above description. Various modifications and changes can be made by those skilled in the art based on the gist of the invention described in the claims or in the embodiments or examples for carrying out the invention. It goes without saying that such modifications and changes are included in the scope of the present invention.

According to the flange tightening management method, tightening management system, tightening management program, and tightening management apparatus of the present invention, by using a tightening tool and a computer having a flange tightening function, selection of a flange and gasket, setting of tightening conditions, It is possible to realize integrated management of multi-function processing such as determination of tightening state, recording of tightening results and presentation of the information, and it is beneficial to realize flange tightening management independent of the experience and intuition of the operator.

2 Flange tightening management system 4 Flange tightening tool 6 Controller 8 Server computer 10 Flange tightening portion 12 Flange 14 Gasket 16 Bolt 18 Nut 20 Device main body 22 Grip 23 Socket 24 Trigger 26 Cable 28 Front panel portion 30 Input key 32 Display portion 34 Dotted line 36 Processing unit 38 Input operation unit 40 Monitor 42 Flange tag 44 Gasket tag 48 Control unit 50 Motor 52 Torque sensor 54 Trigger switch 56 Rotating shaft 68 Storage unit 70 Input / output unit (I / O)
72 Communication Unit 74 Processor 76 Storage Unit 76-1 Temporary Storage Area 76-2 Storage Area 78 Input / Output Unit (I / O)
80 Input operation section 82 Communication section 84 Display section 84-1 Green lamp 84-2 Red lamp 86 Bar code reader 88 External memory 90 Flange information 92 Gasket information 93 Worker tag 94 Worker information 96 Tightening condition table 96-1 Line information Part 96-2 Flange information part 96-3 Gasket information part 96-4 Bolt information part 96-5 Tightening condition information part 98, 98-1, 98-2 Log information table 98-11, 98-21 Line information part 98- 12, 98-22 Flange information section 98-13, 98-23 Gasket information section 98-14 Bolt information section 98-15, 98-25 Tightening condition information section 98-16, 98-26 Tightening result information section 98-17, 98-27 Worker ID part 98-28 Tightening date and time part 98-29 Error judgment part 8-30 first circumferential tightening results section 98-31 final peripheral tightening results section 98-32 the number of cycles section 100 processor 102 memory 104 input and output unit (I / O)
106 Communication section 108 Touch panel 110 Worker information table 110-1 ID section 110-2 Company name section 110-3 Worker name section 112 Worker 116 Bar code 118 Worker tag information 120 Lead 122 Bar code 124 Flange tag information 124-1 Line name 124-2 Flange information 124-3 Gasket information 124-4 Tightening procedure 126 Gasket case 128 Case body 130 Lid part 132 Transparent window part 134 Bar code 136 Gasket tag information 138 Tightening result information 138-1 Tightening condition 138-2 Tightening Date 138-3 Error judgment result 138-4 First tightening result 138-5 Second tightening result 142-1, 142-2 ... 142-N Rack 142-A Line A rack 142-B Line B Rack 42-C line C rack 142-D line D rack

Claims (12)

1. A flange tightening management method using a computer together with a tightening tool for tightening a plurality of bolts and nuts between flanges sandwiching a gasket,
   Obtaining tightening condition information associated with the flange;
   Obtaining gasket information suitable for the flange;
   Collating the gasket information with the gasket information obtained from the gasket and determining whether the gasket is compatible with the flange;
   Applying the tightening torque from the tightening tool to the bolt or the nut according to the tightening condition acquired from the tightening condition information if the gasket selected for the flange is suitable;
   Including flange tightening management method.
2. Further, obtaining the tightening torque applied to the bolt or the nut from the tightening tool, and evaluating whether the tightening of the flange meets the tightening condition;
   Presenting tightening result information including at least the tightening condition and an evaluation result in relation to the flange; and
   The flange tightening management method according to claim 1, comprising:
3. A flange tightening management method using a computer together with a tightening tool for tightening a plurality of bolts and nuts between flanges sandwiching a gasket,
   Obtaining tightening condition information associated with the flange;
   Obtaining flange information including gasket information suitable for the flange from the flange tag;
   Obtaining gasket information from a gasket or gasket tag;
   Collating the gasket information contained in the flange information with the gasket information acquired from the gasket or the gasket tag;
   If the gasket matches the flange, the process of selecting the tightening condition from the tightening condition information;
   Obtaining a tightening torque applied to the nut from the tightening tool, and evaluating whether the tightening of the flange meets the tightening conditions;
   Presenting tightening result information including at least the tightening condition and an evaluation result in relation to the flange; and
   Including flange tightening management method.
4. And outputting presentation information indicating whether or not the gasket is compatible with the flange;
   The flange tightening management method according to claim 1 or 3, comprising:
5. A step of determining whether the tightening condition is satisfied during the tightening of the flange; and
   Presenting the result of the determination;
   The flange tightening management method according to any one of claims 1, 3 and 4.
6. Furthermore, the process of acquiring worker information from the worker tag,
   Associating with the worker information, presenting the flange information, the tightening condition and the evaluation result;
   The flange tightening management method according to any one of claims 3 to 5, comprising:
7. The flange tightening management method according to any one of claims 3 to 6, wherein the flange information includes at least information indicating a tightening procedure together with a gasket adapted to the flange.
8. The flange tightening management method according to any one of claims 3 to 7, wherein the tightening condition information includes the flange information and the gasket information.
9. Furthermore, a process of molding a gasket from the gasket material,
   Attaching the gasket tag containing the gasket information to the gasket;
   A flange tightening management method according to any one of claims 1 to 8, comprising:
10. A tightening tool for tightening a plurality of bolts and nuts attached with a gasket between the flanges;
    A controller for controlling the tightening operation of the tightening tool;
    A server wired or wirelessly connected to the controller;
    The controller comprises:
    Obtain tightening condition information related to the flange from the server,
    Get flange information including gasket information that matches the flange from the flange tag, get gasket information from the gasket or gasket tag,
    Collating the gasket information contained in the flange information with the gasket information obtained from the gasket or the gasket tag,
    If the gasket fits the flange, select the tightening condition from the tightening condition information,
    Obtaining a tightening torque applied to the nut from the tightening tool, evaluating whether the tightening of the flange meets the tightening condition;
    A flange tightening management system for providing the server with tightening result information including at least the tightening condition and an evaluation result related to the flange.
11. A flange tightening management program for realizing a computer using a computer for controlling a tightening tool for sandwiching a gasket between flanges and tightening with a plurality of bolts and nuts,
    Get the tightening condition information related to the flange,
    Get flange information including gasket information that fits the flange from the flange tag,
    Get gasket information from gasket or gasket tag,
    Collating the gasket information contained in the flange information with the gasket information obtained from the gasket or the gasket tag,
    If the gasket fits the flange, select the tightening condition from the tightening condition information,
    Obtaining a tightening torque applied to the nut from the tightening tool, evaluating whether the tightening of the flange meets the tightening condition;
    Presenting tightening result information including at least the tightening condition and the evaluation result in relation to the flange;
    A flange tightening management program for causing the computer to realize the function.
12. A flange tightening management device used together with a tightening tool for tightening with a plurality of bolts and nuts by sandwiching a gasket between flanges,
    Acquire the tightening condition information related to the flange, acquire the flange information including the gasket information that matches the flange from the flange tag, acquire the gasket information from the gasket or the gasket tag, and add it to the nut from the tightening tool An information acquisition unit for acquiring a tightening torque to be
    The gasket information included in the flange information is compared with the gasket information acquired from the gasket or the gasket tag, and if the gasket matches the flange, a tightening condition is selected from the tightening condition information, and the flange information A processing unit for evaluating whether the tightening conforms to the tightening condition; and
    An information presentation unit for presenting tightening result information including at least the tightening condition and an evaluation result in relation to the flange;
    A flange tightening management device comprising:

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