JP6034552B2 - How to determine reuse of machine element parts - Google Patents

Description

  The present invention relates to a method for determining whether reuse is possible in maintenance of machine element parts. In particular, the present invention relates to a method capable of making an error-free judgment even in a situation where there is no maintenance specialist such as a site where machine element parts are used.

  All machines are inevitably worn and deteriorated when used. Therefore, careful diagnosis and appropriate maintenance are indispensable for continuous use. However, the more complex the machine, the greater the number of components that make up the machine element parts. It is practically difficult to keep track of the manufacturing conditions and the manufacturing time for all of the enormous number of components and perform diagnosis and maintenance suitable for each component. This is because even the same kind of components may have different properties depending on manufacturing conditions and cannot be determined based on the same standard.

  On the other hand, as a method for managing the element parts of such a machine, a method of embedding an IC tag in each element part has been studied. IC tags not only read out unique identification information. Writing is also possible, and the attributes and conditions of the manufacturing process can be recorded and read later as information.

  For example, in Patent Document 1, the material, forging, and heat treatment conditions such as forging and heat treatment for each component part constituting an element part are recorded on an IC tag and attached to one of the component parts at the time of shipment. Describes a quality control method for machine element products in which information recorded on IC tags is read at any time to confirm materials and manufacturing conditions. According to this, even after shipment, by reading the IC tag, it is possible to grasp the material and processing conditions, and therefore, the cause investigation in the case where a failure occurs can be easily performed.

JP 2006-53670 A

  However, the method described in Patent Document 1 is extremely effective when a manufacturer or a specialized institution inspects, but in the case of a machine composed of a plurality of parts, a specialist for each individual part is always on site. I don't mean. For this reason, it is necessary to call a specialist for each component part constituting the machine or send it to the manufacturer of the component part for diagnosis, and the machine cannot be used during the movement. It was a heavy burden for me. In particular, in the case of machine element parts used in places such as remote places where transportation is difficult or transportation costs cannot be borne, diagnosis itself may be impossible.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to enable easy and reliable diagnosis at a use site or in the vicinity thereof without being sent to a place where a manufacturer or a maintenance specialist resides.

This invention
An IC tag capable of recording identification information including at least one of the type, production time, production lot, and production history of the machine element part and reading the identification information from the outside by an electromagnetic method. Attached,
In determining whether it can be reused by inspecting after using the above machine element parts,
A communication unit capable of reading the identification information of the IC tag, a storage unit recording the inspection item corresponding to the identification information and its judgment criteria, a display unit capable of displaying the inspection item and the judgment result, and the inspection item An inspection device comprising: an input unit capable of inputting result information on the device; and a determination unit which determines whether or not it can be reused by comparing the result information input from the input unit with the determination criterion and obtains the determination result Using,
The identification information included in the IC tag included in the machine element part is read by the communication unit, inspected according to the inspection item displayed on the display unit, and the result information obtained by executing the inspection item is input as the result. The above-mentioned problems have been solved by inputting the information into the section and using the determination result displayed on the display section.

  That is, the main point of the present invention is that an inspection device capable of diagnosing machine element parts even in a place where an expert is not present and an environment therefor are prepared. In this inspection device, an inspection item corresponding to the identification information of the machine element part and a criterion for the inspection item are recorded. When a user reads an IC tag of a machine element part with this inspection device, an inspection item corresponding to the identification information from the identification information of the IC tag, that is, an inspection item suitable for the machine element part is displayed on the display unit of the inspection device. Is displayed. Even if the user does not have technical knowledge about the model number or lot of the machine element parts, the user may inspect according to the displayed contents. If the user inputs the result information to the inspection device after the inspection, the inspection device determines whether the machine element part is still usable, that is, whether it can be reused, based on the above criteria. Judgment is made and the judgment result is displayed on the display unit. Thereby, it is not necessary for a non-expert user to make a difficult decision, and it can be determined whether or not the use can be continued according to a uniform standard.

  When there are multiple inspection items instead of one and one inspection item is displayed, it is possible to accept the input of the result information for the one inspection item, and the input of the result information for the one inspection item. The following other inspection items are displayed on the display unit, input of the result information on all the inspection items is waited, and all the above judgment criteria are determined, and then the above determination result Therefore, the user can perform inspections as instructed in order without hesitation, so that more detailed and reliable inspection can be performed while being simple.

  As a more effective means, there is a means for using the usage information including the usage time and the usage conditions of the machine element part for determining the reuse. The usage information can be input from the input unit, and the storage unit stores a history determination criterion that is a criterion for determining whether or not the reuse can be performed according to the usage information. In addition, if the diagnosis result is obtained by judging whether or not it can be reused by comparing the use information and the history judgment standard together, not only on-the-spot inspection but also in the durability time and use environment. Appropriate judgment can be made in consideration of the corresponding usage history.

  In addition, it is beneficial to write the inspection items, the usage information, the judgment results, etc. in the IC tag after determining whether or not the above-mentioned reuse is possible, because the contents can be referred to later. It is. This is because, in the case of reuse, the past history up to that time can be referred to later, and even when the reuse is stopped, it is possible to know later why the machine element part cannot be reused. The inspection items, the usage information, and the determination results may not be all, and one or a part of them may be selected as necessary.

  The inspection device preferably has a battery and is portable. Reuse can be easily determined even in places where there is no power source or where the power source is secured. This is particularly effective when diagnosing machine element parts used in remote environments.

  On the other hand, the inspection device may have a network function. As a result, when the identification information, the use information, the determination result, or both of them are transmitted and registered in a separately provided machine element parts management database, the machine element parts management database is referred to. In addition, it is possible to centrally manage whether or not the machine element part is currently in operation, and it is possible to store and use detailed information that cannot fit in the IC tag. It is also possible to analyze the durability time until it can no longer be used.

  Further, if the inspection device has a network function, it is provided separately based on the identification information read by the reading unit even if the inspection items and the judgment criteria thereof are not recorded in the inspection device in advance. The inspection item can be transmitted to the inspection item management database, and the inspection item corresponding to the identification information recorded therein and the determination criterion thereof can be received to determine whether or not to reuse. As a result, the number of target machine element parts can be increased almost without limitation, and machine element parts manufactured after the inspection apparatus is manufactured can also be handled.

  If the machine element part is further composed of a plurality of components, if each component part has an IC tag in addition to the machine element part itself, do all the criteria for each component part be satisfied? If it is determined whether or not the machine element part can be reused depending on whether or not, the diagnosis can be performed in detail and with high certainty.

  As a machine element component suitable for making a diagnosis and re-use determination in this way, for example, a bearing device can be cited. An IC tag is attached to each of a plurality of component parts such as a seal ring and a starter wheel constituting the bearing device, and inspection and determination suitable for the shape and model number of each component part may be performed.

  When reading each IC tag for the machine element part composed of a plurality of component parts, even if the IC tag is covered with other component parts when disassembled for each of the component parts, Can read, diagnose, and judge without problems.

  When the mechanical element part has a metal part, it is necessary to use an IC tag that can be read and written even if it is attached to or embedded in the metal part.

  The inspection items do not necessarily require a dedicated device for measurement, and include items that can be determined by visual observation or by a method such as hitting with a hammer. This is because such inspection may be sufficient for some machine element parts, and there are often no dedicated devices in places where there are no specialists.

  With this invention, when diagnosing machine element parts, users can easily perform highly reliable diagnoses on site without calling for experts or returning them to manufacturers, etc. It is possible to determine with high accuracy whether or not this is possible.

Schematic of the first embodiment for carrying out the present invention Configuration diagram of a first embodiment for carrying out the present invention (A) Model number-item correspondence table, (b) Inspection item table, (c) Usage information input item table Example diagram when machine element parts have IC tags for each structural part Example of a flowchart for carrying out the present invention

Embodiments of the present invention will be described below with reference to the drawings.
The present invention attaches an IC tag 12 in which identification information is recorded to a machine element part 11, reads the identification information from an inspection device 21, diagnoses the machine element part 11 using the inspection device 21, and This is a reuse determination method for machine element parts, in which a determination as to whether or not the part 11 is reusable is displayed. FIG. 1 is a schematic diagram of a first embodiment of the present invention, and FIG. 2 is a conceptual diagram of an IC tag 12 and an inspection device 21. Here, a roller bearing is taken as an example of the machine element part 11. An IC tag 12 is provided at one location facing the outside of the inner ring.

  First, the IC tag 12 attached to the machine element part 11 will be described. In the IC tag 12, the control unit 43 can read information stored in the storage unit 42 and write information into the storage unit 42 by electromagnetic induction caused by the communication unit 41 receiving an external radio wave. A so-called passive IC tag can be used. It is not suitable to use the active type that requires a power supply because it is attached to the machine element part 11 for a long period of time and needs to be read and written only during maintenance. Further, in order to facilitate reading, it is desirable that communication is possible using radio waves in a range of several centimeters to 1 meter, not a contact type.

  When the machine element part 11 is manufactured, identification information 50 including at least one of the type, the manufacturing time, the manufacturing lot, and the manufacturing history is recorded on the IC tag 12. These may be recorded as text data as they are, or may be recorded as a code standardized with the inspection device 21 or may be recorded as a model number. In any form, it is only necessary that the inspection device 21 can select an appropriate inspection item 51 for the machine element part 11 by referring to the identification information 50.

  Further, it is preferable that an empty area is provided in the storage unit 42 of the IC tag 12 and information such as result information 53, determination result 54, and usage information 55 described later can be written.

  In the case where the machine element part 11 has a metal part, when the normal IC tag 12 is used, there are cases where normal reading and writing cannot be performed due to interference of magnetic lines of force on the metal part. For this reason, when the machine element part 11 has a metal part and the IC tag 12 is attached to a place where it can interfere with it, the IC tag is read even if it is affixed or embedded in the metal part, It is necessary to use a model that supports writing.

  Next, the inspection device 21 will be described. The inspection device 21 is a device including at least a communication unit 32, a storage unit 33, a display unit 34, an input unit 35, and a control unit 31 that controls them.

  The communication unit 32 is a device capable of communicating with the communication unit 41 of the IC tag 12 and includes a coil that generates radio and a control circuit therefor.

  The storage unit 33 is composed of a non-volatile memory, and records identification information 50 about the machine element part 11 to be diagnosed, an inspection item 51 corresponding thereto, and a determination criterion 52 thereof. Using the identification information 50 as a key, the control unit 31 reads an inspection item 51 suitable for the condition of the machine element part 11 and also reads a determination standard 52 for the inspection item 51. Further, the history judgment reference 56 is also read out as necessary.

  The inspection items 51 are recorded in the form of texts and drawings, and are displayed on the display unit 34 described later to convey a specific inspection method to the user. Basically, since this is an inspection for determining whether or not re-use is possible, it is necessary to be a non-destructive inspection including confirmation of the presence or absence of what can be visually confirmed from the appearance. Examples of matters that can be confirmed from the appearance using the naked eye or a magnifying glass include the presence or absence of peeling, seizure, cracking, chipping, breakage, rust, indentation, electrolytic corrosion, and abrasion. In addition, there may be a unique inspection item for each machine element part 11. For example, if the machine element part 11 is a bearing, breakage, smearing, galling, fretting, creep, peeling, etc. of the cage may be present from the appearance. It is a matter that can be confirmed. In addition, as non-destructive inspection using inspection equipment, in addition to the method of confirming the items to be visually confirmed by image processing after photography, dimension measurement, weight measurement, hardness measurement, rotational tone, X-ray photography, Measurements such as magnetic particle inspection, fluorescent inspection, and overcurrent inspection are also possible.

  Regarding the inspection items 51, it is desirable that the contents displayed on the display unit 34 are not limited to the words as described above but can be clearly shown by sentences and drawings. For example, when the machine element part 11 is a bearing, the specific instruction content is “please check whether the raceway surface is peeled off using a magnifying glass of 3 times or more”. The contents may be visual inspection or hammering that does not require specialized equipment, or specialized equipment such as X-ray photography equipment or spectrum analysis equipment may be used to analyze the output results. However, in particular, when the present invention is implemented, it is preferable that only the inspection items 51 that can be diagnosed without requiring a specialized device are used for a non-expert user to implement the present invention in an environment close to the site.

  Further, the determination criterion 52 is a criterion for determining whether or not the machine element part 11 may be reused according to the diagnosis contents indicated by the inspection item 51. For example, the inspection items 51 are “confirmation of presence / absence of visual separation”, “confirmation of rust by visual inspection”, “confirmation of indentation with a magnifier”, “confirmation of presence / absence of wear under a light source”, For an answer received with “Yes” or “No” such as “confirmation of the presence / absence of peeling”, for example, if “No”, the item is set to be acceptable in determining reuse. In addition, when the inspection item 51 is such that a numerical value or the like can be obtained by an analyzer or a measuring device, an upper limit or a lower limit is set for the numerical value, and if it is within the set value range, The item is set to pass.

  These contents may be recorded in the storage unit 33 in the form of one or more tables corresponding to the identification information 50. For example, as shown in FIG. 3, from the identification information 50 received from the IC tag 12 (here, the part model number), the item number of the inspection item 51 to be executed is obtained by referring to the model number-item correspondence table, There is a method in which the inspection item table is searched by the item number, and the display contents of the inspection strictness 51 and the judgment criteria corresponding to it are read out.

  In addition to this, the storage unit 33 is requested by the inspection item 51 and is input from an input unit 35 described later, and is a history determination criterion that is a criterion for determining whether reuse is possible according to usage information 55. 56 is recorded, and the control unit 31 makes a determination with reference to the history determination criterion 56 when the usage information 55 is input. The usage information 55 is diagnostic contents at that time, such as usage conditions such as the usage time of the machine element part 11, the load at the time of use, the rotation speed at the time of use, the temperature condition at the time of use, the frequency of use, etc. Rather, it is the specific content of the use before the diagnosis. The specific contents of the history judgment criteria 56 are that the above-mentioned usage information 55 is not reusable if the usage time is longer than a certain time, or if the number of times the load is used is greater than a certain value. It is a content such as failing. An example is shown in FIG.

  The display unit 34 may be a general liquid crystal display. When the inspection item 51 includes not only text data and drawing data but also audio data, the display unit 34 may include a speaker. Here, the user performs an inspection in accordance with the inspection item 51 displayed on the display unit 34.

  The input unit 35 needs to be capable of inputting at least Yes / No judgment, such as a touch panel, a button, and a keyboard, and more preferably capable of inputting numerical values and characters. The user inputs from the input unit 35 the result information 53 such as the correctness of the result of the inspection performed in accordance with the inspection item 51 and the numerical value of the measurement result.

  When the result information 53 is input from the input unit 35, the control unit 31 operates as a determination unit 36 that determines whether or not a condition is satisfied according to a determination criterion 52 that has been read in advance or read at that time. To do. When the number of inspection items 51 is one, according to the result as the determination unit 36, if the condition is acceptable, the machine element part 11 is determined to be reusable, and the determination result 54 is obtained. Output to the display unit 34.

  On the other hand, when there are a plurality of inspection items 51, when the input of the result information 53 for one inspection item 51 is finished, the next inspection item 51 is displayed and the apparatus waits in a state where the input of the result information 53 is accepted. To do. This is performed for all inspection items 51. The operation as the determination unit 36 may be performed collectively after the result information 53 for all the inspection items 51 has been input, or each time the result information 53 is input. Judgment may be made.

  If there is a margin in the display area of the display unit 34, it is possible to display a plurality of inspection items 51 at the same time and accept input. However, from the viewpoint of preventing erroneous input, one inspection item 51 is provided. It is preferable to display one.

  Further, the control unit 31 performs a determination on the usage information 55 based on the history determination criterion 56 as the determination unit 36.

  Further, the control unit 31 receives the result information 53 and the usage information 55 for all the inspection items 51, and when the judgment for all the judgment criteria 52 and the history judgment criteria 56 is completed, those values are used. In total, it is determined whether or not the diagnosed machine element part 11 can be reused. Basically, even if one item does not satisfy the condition, it cannot be reused.However, depending on the type of part and the diagnostic content, the condition must be cleared for a certain number or more of all inspection items. In some cases, reuse is possible. This varies depending on the functions, properties, and attributes of the machine element part 11. For example, although not shown in the figure, a condition may be given such that if any of the listed items is satisfied, the model number-item correspondence table is accepted.

  The determination result 54 indicating whether or not it is finally reusable is displayed on the display unit 34, and the diagnosis ends. Thus, the user obtains information on whether or not the machine element part 11 is reusable.

  Thereafter, the result information 53, the determination result 54, and the usage information 55 may be written to the IC tag 12 of the machine element part 11 as necessary. If the determination result 54 is written, it is possible to read and know later whether or not the machine element part 11 is permitted to be reused. In particular, this is useful for preventing an error in which the machine element part 11 that has been made non-reusable is used again. Further, if the result information 53 and the usage information 55 are recorded, it can be left as a use history and a diagnosis history, and these can be used as precondition values in the diagnosis for the second and subsequent reuses. .

  Further, other functions will be described. When the inspection device 21 includes the network function unit 37, the storage unit 33 may be a volatile memory. In this case, the inspection items 51, the determination criteria 52, the history determination criteria 56, etc. are not recorded in the normal state, but the inspections provided outside through the network 81 through the network function unit 37 as necessary. The identification information 50 is transmitted to the item management database 71, the inspection items 51, the judgment criteria 52, the history judgment criteria 56, etc. corresponding to the identification information 50 are downloaded, temporarily stored in the storage unit 33, and similar to the above. It is preferable to execute the determination. Thereby, it can respond also about the machine element components 11 manufactured after the inspection apparatus 21 was sold. The network function unit 37 itself may be an Internet connection function through a wired LAN or a wireless LAN or a mobile communication function as long as it can access the inspection item management database 71 existing on the network. Good. On the other hand, the inspection item management database 71 may be managed by a manufacturer or sales agent of the machine element parts 11 to provide services to the purchaser.

  Further, when the inspection device 21 has the network function unit 37, a machine element component management database provided on the network 81 with usage information 55 and a determination result 54 together with the identification information 50 during or after the determination of reuse. 61 is preferable. In the machine element parts management database 61, the transmitted information is registered in a table, and can be called up as necessary. By searching the machine element / parts management database 71, for example, a company to which the user belongs can obtain information such as how much the machine element / part 11 the user owns is currently used.

  These databases may be software recorded and executed by a server that can be used on the network 81.

  As another function, the inspection device 21 preferably includes a battery 39. As a result, it is possible to easily determine whether or not it can be reused at a place near the site where there is no power source.

  The determination in the above embodiment refers to the inspection items 51 for all of the components from the identification information 50 recorded in the IC tag 12 even if the machine element component 11 is composed of a plurality of components. This is possible, and it is possible to determine whether or not it can be reused in a batch.

  An embodiment in which the machine element part 11 includes a plurality of component parts, and each of the component parts individually has an IC tag will be described. FIG. 4 shows a cross-sectional view of a machine element part 11 </ b> A that is a roller bearing composed of an inner ring 13, an outer ring 14, a cage 15, and rolling elements 16. IC tags 12a, 12b, and 12c are attached to the inner ring 13, the outer ring 14, and the retainer 15, respectively.

  When determining whether or not the machine element part 11A can be reused, for example, the inspection device 21 first reads the identification information 50a to 50c for all of the IC tags 12a, 12b, and 12c. At this time, since the IC tag 12c is in a place where reading between the inner ring 13 and the outer ring 14 is difficult, it is preferable to disassemble and read the roller bearing once. The inspection device 21 has a correspondence table with inspection items for the identification information 50a to 50c recorded in the respective IC tags 12a to 12c in the storage unit 33 or downloaded from the network and temporarily held. doing. In addition, the inspection device 21 sequentially displays the inspection items 51 for all the identification information 50a to 50c, accepts input of all the result information 53, and temporarily holds it in the storage unit 33. When all the result information 53 is finally input, the result information 53 temporarily stored in the storage unit 33 is determined. Of course, at this time, determination based on the history determination standard 56 for the usage information 54 may be used in combination. By integrating these determinations, a determination result 54 is obtained and displayed on the display unit 34. Furthermore, after the usage information 55 and the determination result 54 are written to the individual IC tags 12a to 12c as necessary, they are assembled and reused if reusable.

  Next, an example of a procedure for executing the reuse determination method according to the present invention will be described with reference to a flowchart. A flowchart of this example is shown in FIG.

  First (S101), the user brings the inspection device 21 close to the IC tag 12 of the machine element part 11 and reads the identification information 50 (S102). The control unit 31 searches the table in the storage unit 33 using the read identification information 50 as a key, and reads the inspection item 51, the determination criterion 52, and the history determination criterion 56 (S103). Here, the inspection item 51 includes information on usage information 55 for which input is requested.

  First, the control unit 31 causes the display unit 34 to display a message urging input of the usage information 55 (S104). When the usage information 55 corresponding to the displayed information is input from the input unit 35 (S105), the control unit 31 determines whether the data has no problem in terms of format (S106). For example, it is an error when numerical data is input for an inspection item to be asked with Yes / No, and it is also an error when a decimal or negative number is input with data that should have taken only a natural number. It is judged. In this case, the process returns to (S104). If the data has no problem in format, the control unit 31 temporarily stores the usage information 55 in the storage unit 33 (S107). If there are a plurality of necessary usage information 55 (S108), the procedure (S104 to S107) so far is repeated for the next usage information 55.

  Next, (S111) the control unit 31 displays the first inspection item among the inspection items 51 on the display unit 34 (S112). In accordance with the display content of the display unit 34, the user performs visual inspection or inspection with a measuring device. When the inspection is completed, the result information 53 is input from the input unit 35 (S113). As described above, the control unit 31 determines whether or not the input information is data having no problem in format (S114). If there is no problem, the control unit 31 temporarily stores the result information 53 in the storage unit 33. (S115). If the value of n matches the number of inspection items 51, the inspection ends there (S116), and if it is less (S117), the next inspection item 51 is displayed (S112 ~).

  When the inspection is completed (S116), the control unit 31 (determination unit 36) reads the usage information 55 and the result information 53 temporarily stored in the storage unit 33, and compares all items with the history determination criteria 56 and the determination criteria 52. Is checked whether the condition is satisfied (S121). If all the results satisfy the condition, the judgment result 54 is “positive”; otherwise, the judgment result 54 is “no”. The control unit 31 displays the obtained determination result 54 (S122). Upon completion of the determination, the user brings the inspection device 21 closer to the IC tag 12 as necessary, and writes the determination result 54 and the usage information 55 in the IC tag 12 (S123).

  Thus, it is possible to determine whether to reuse one machine element part 11 (S131).

11, 11A Machine element parts (bearing device)
12, 12a, 12b, 12c IC tag 13 Inner ring 14 Outer ring 15 Cage 21 Inspection device 31 Control unit 32 Communication unit 33 Storage unit 34 Display unit 35 Input unit 36 Determination unit 37 Network function unit 39 Battery 41 Communication unit 42 Storage unit 43 Control unit 50, 50a, 50b, 50c Identification information 51 Inspection item 52 Judgment criteria 53 Result information 54 Judgment result 55 Usage information 56 History judgment criteria 61 Machine element parts management database 71 Inspection item management database 81 Network

Claims (10)

An IC tag capable of recording identification information including at least one of the type, production time, production lot, and production history of the machine element part and reading the identification information from the outside by an electromagnetic method. Is installed,
In determining whether it can be reused by inspecting after using the above machine element parts,
A communication unit capable of reading the identification information of the IC tag, a storage unit recording the inspection item corresponding to the identification information and its judgment criteria, a display unit capable of displaying the inspection item and the judgment result, and the inspection item The input unit capable of inputting the result information about and the use information including the use time, use condition, or both of the machine element parts, and the result information inputted from the input unit is compared with the judgment criterion A diagnosis is made to determine whether or not reuse is possible by comparing the usage information and a history judgment criterion that is a criterion for judging whether or not reuse is possible according to the usage information and to obtain the judgment result. It has a judgment part and a battery and is portable.
After reading the identification information from the communication unit, the use information can be input from the input unit, and the storage unit uses an inspection device that stores the history determination criteria.
The identification information included in the IC tag of the machine element part is read by the communication unit, and the result information obtained by the user performing the inspection according to the inspection item displayed on the display unit is the result information. Input from the input unit by the user, the determination unit determines whether or not the machine element part can be reused on the spot, the display unit displays the determination result,
The IC tag is a record and possible read state as part of the diagnostic history the result information, the determination unit reads the result information at the time of the diagnosis of the second and subsequent were the recording, when the decision , Reuse determination method of machine element parts, which is also used as diagnosis history . When there are multiple inspection items and one inspection item is displayed, it is possible to accept the input of the result information for the one inspection item and wait for the input of the result information for the one inspection item. Display the following inspection items on the display section,
2. The machine element part according to claim 1, wherein the judgment result is obtained after waiting for the input of the result information for all the inspection items and making judgments for all the judgment criteria. How to determine reuse. After the determination, the result information, reusing method for determining the machine component according to claim 1 or 2, characterized in that writing to the IC tag from the communication unit.   The inspection apparatus includes a network function unit, and the identification information, the use information, the determination result, or both are transmitted to a separately provided machine element parts management database to be registered. Item 4. A reuse determination method for machine element parts according to any one of Items 1 to 3.   The inspection device has a network function unit, reads the identification information by the communication unit, transmits it to a separately provided inspection item management database, and receives the inspection item corresponding to the identification information and its criterion. The method of determining reuse of a machine element part according to any one of claims 1 to 4, wherein the storage part is temporarily stored in the storage unit.   The machine element part is further composed of a plurality of component parts, and each of the component parts has the IC tag, and the determination of whether or not it can be reused is made based on all of the sub parts constituting the machine element part. 6. The method for determining reuse of machine element parts according to claim 1, wherein the determination is made based on whether or not a determination criterion is satisfied.   7. The method of determining reuse of a machine element part according to claim 6, wherein the machine element part is a bearing device, and the IC tag is attached to a plurality of components of the bearing device.   The reuse of the machine element part according to claim 6 or 7, wherein the user reads the IC tag by the communication unit after the user disassembles the machine part part for each component part. Judgment method.   The machine according to any one of claims 1 to 8, wherein the machine element part has at least a metal part, and the IC tag is a corresponding IC tag that can be read and written in a state of being attached or embedded in the metal part. How to determine reuse of element parts.   10. The method for determining reuse of machine element parts according to claim 1, wherein all of the inspection items can be determined without using a dedicated device for measurement.

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