Tool system

Abstract

To reduce possibility of occurrence of failure after operation.SOLUTION: A tool system 1 is provided with a portable tool 2. The portable tool 2 includes: a working part 24 rotating a motor 249 by power supplied from a power supply to perform work to a work target member 9; a photographing part 25 generating a photographed image; an operation part 26 operated by a user; and a control part 27 controlling an operation of the working part 24. The control part 27 includes: a working mode operating the working part 24 according to operation of a user to the operation part 26 as a working mode; and a resting mode preventing the working part 24 from operating even when the operation part 26 is operated by the user. The tool system 1 is provided with a component determination part 323 determining correctness of a component 8 mounted to the work target member 9 on the basis of the photographed image of the photographing part 25. The control part 27 is provided with a function for changing the operation mode to the working mode from the resting mode according to the determination result by the component determination part 323.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] FIELD OF THE DISCLOSURE The present disclosure relates generally to tool systems, and more particularly, to tool systems that include portable tools. [Background technology]

[0002] Patent Document 1 describes a tool system. The tool system of Patent Document 1 is used in an assembly line in a factory where product assembly work is carried out. In the assembly line, there are multiple fastening points (work targets) for one product, and workers use tools to attach fastening parts to each of the multiple fastening points (work targets) at the same work location.

[0003] The tool has a drive unit having a motor, an imaging unit that images a work target during work, a tool-side control unit, and a torque storage unit. The tool-side control unit has a function of identifying a work target (actual work target) that appears in the captured image from among a plurality of work targets. When the tool-side control unit identifies the actual work target, it obtains a target torque value corresponding to the actual work target from the torque storage unit and sets the target torque value as the torque setting value. As a result, the tightening part is tightened at the target torque value corresponding to the actual work target. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2018-108633 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the tool system described in Patent Document 1, when the tightening target portion is specified by the tool, it is possible to tighten the tightening part to the tightening target portion. Therefore, even if there is an error in a part other than the tightening target portion, the work is performed. If work is performed on the work target part in a state where there is an error in a part other than the tightening target portion, there is a possibility that a defect will occur in the work target part after the work.

[0006] The present disclosure has been made in consideration of the above problems, and aims to reduce the occurrence of defects after work. [Means for solving the problem]

[0007] A tool system according to an aspect of the present disclosure includes a portable tool. The portable tool includes a working unit, an imaging unit, an operation unit, and a control unit. The working unit includes a motor. The working unit rotates the motor with power supplied from a power source to perform work on a work target member. The imaging unit generates an image. The operation unit is operated by a user. The control unit controls the operation of the working unit. The control unit has, as operation modes, a work mode in which the working unit is operated in response to the user's operation of the operation unit, and a pause mode in which the working unit is not operated even if the user operates the operation unit. The tool system includes a part determination unit. The part determination unit determines whether a part attached to the work target member is correct or incorrect based on the image captured by the imaging unit. The control unit has a function of changing the operation mode from the pause mode to the work mode in response to the determination result by the part determination unit. Effect of the Invention

[0008] The present disclosure has the advantage that it is possible to reduce the occurrence of defects after work. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a block diagram of a tool system according to one embodiment. [Diagram 2]FIG. 2 is a front perspective view of a tool included in the tool system. [Diagram 3] FIG. 3 is a rear perspective view of the tool. [Figure 4] FIG. 4 is a perspective view of a pipe provided with a flange, which is an example of a work target member of the tool system. [Diagram 5] FIG. 5 is an explanatory diagram showing an example of a state in which a gasket is correctly attached to a flange. [Figure 6] FIG. 6 is an explanatory diagram showing an example of a state in which an incorrect gasket is attached to a flange. [Figure 7] FIG. 7 is an explanatory diagram showing another example of a state in which an incorrect gasket is attached to a flange. [Figure 8] FIG. 8 is an explanatory diagram showing yet another example of a state in which an incorrect gasket is attached to a flange. [Figure 9] FIG. 9 is a flowchart showing an example of the operation of the tool system. [Figure 10] FIG. 10 is a continuation of the flowchart of FIG. [Figure 11] FIG. 11 is a block diagram of a tool system according to the first modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the drawings. Each of the drawings described in the following embodiments is a schematic diagram, and the size and thickness ratios of each component in each drawing do not necessarily reflect the actual dimensional ratios. In addition, elements common to the embodiments described below are assigned the same reference numerals, and duplicated descriptions of the common elements will be omitted.

[0011] (1) Implementation form (1.1) Overview As shown in FIGS. 1 to 3, a tool system 1 of the present embodiment includes a portable tool 2 (hereinafter, simply referred to as a “tool”).

[0012] The tool 2 is a device for performing a task on a work target member 9. As shown in Fig. 1, the tool 2 includes a working unit 24. The working unit 24 includes a motor 249. The working unit 24 rotates the motor 249 with power supplied from a power source to perform a task on the work target member 9. That is, the tool 2 of this embodiment is an electric tool that operates the motor 249 using electric energy.

[0013] The tool 2 of this embodiment is used, for example, when performing piping work in a factory or a work site. The tool 2 is used, for example, for joining two pipes 90 (see FIG. 4) with a fastening part. More specifically, the tool 2 is used, for example, for joining flanges 900 provided on two pipes 90 by fastening the fastening part. In this case, the work target member 9 of the tool 2 includes one of the two pipes 90 (flange 900). The fastening part may include a bolt 91 and a nut. The piping may be a gas piping, a liquid piping, or a powder piping.

[0014] Here, when performing work on a work target member 9 using a tool 2, a part 8 may be attached to the work target member 9. For example, when the work target member 9 is a flange 900 provided on a pipe 90, a gasket 80 (see FIG. 5) is attached to the flange 900. However, there are various types, shapes, and sizes of pipes 90 and flanges 900, and there are also various types, shapes, and sizes of gaskets 80. For this reason, an incorrect gasket 80 may be attached to the flange 900, and the pipe 90 may be joined. If an incorrect gasket 80 is attached to the piping, a malfunction such as leakage of fluid passing through the piping or damage to the gasket 80 may occur after the work (during the use of the piping).

[0015] The tool system 1 of the present embodiment can be used, for example, to prevent such "attachment of an incorrect (incorrect) part 8 to a work target member 9".

[0016] Specifically, the tool 2 includes an operation unit 26 and a control unit 27. The operation unit 26 is operated by a user. The control unit 27 controls the operation of the working unit 24.

[0017] In the tool 2 of this embodiment, the control unit 27 has a work mode and a sleep mode as operation modes. In the work mode, the control unit 27 operates the working unit 24 (rotates the motor 249) in response to a user's operation of the operation unit 26. On the other hand, in the sleep mode, the control unit 27 does not operate the working unit 24 even if the user operates the operation unit 26 (prohibits the operation of the working unit 24).

[0018] In short, in the tool 2 of this embodiment, if the control unit 27 is operating in the pause mode, no work is performed by the working unit 24 even if the user operates the operation unit 26. In order for the user to perform work on the work target member 9, it is necessary to operate the control unit 27 in the work mode. The tool system 1 of this embodiment includes the imaging unit 25 and the part determination unit 323 as elements for operating the control unit 27 in the work mode.

[0019] The imaging unit 25 is provided in the tool 2. The imaging unit 25 generates an image. For example, when a user of the tool 2 wishes to perform work using the working unit 24, the user photographs the work target member 9 (for example, a flange 900) with a part 8 (for example, a gasket 80) attached thereto (see FIG. 5) before the work, using the imaging unit 25 to generate an image. The part determination unit 323 determines whether the part 8 attached to the work target member 9 is correct or incorrect, based on the captured image generated by the imaging unit 25. The control unit 27 has a function of changing the operation mode from the idle mode to the work mode, depending on the determination result by the part determination unit 323.

[0020] In short, in the tool system 1 of this embodiment, the control unit 27 of the tool 2 changes the operation mode from the pause mode to the work mode according to the judgment result by the part judgment unit 323 (for example, when it is judged that the part 8 attached to the work target member 9 is correct). This allows the user to perform work by the working unit 24. In other words, in the tool system 1, the working unit 24 cannot perform work unless the imaging unit 25 generates a captured image and the part judgment unit 323 judges that the part 8 attached to the work target member 9 is correct (for example, the part judgment unit 323 judges that the part 8 attached to the work target member 9 is correct). This can prevent, for example, a situation in which work is performed on the work target member 9 (flange 900) with an incorrect part 8 (gasket 80) attached. Therefore, according to the tool system 1 of this embodiment, it is possible to reduce the possibility that a defect occurs in the work target member 9 after work.

[0021] (1.2) Details Hereinafter, details of the tool system 1 according to the present embodiment will be described with reference to FIGS.

[0022] As shown in FIG. 1, the tool system 1 includes a tool 2 and a processing device 3.

[0023] As described above, the tool 2 is a device for performing work on a work target member 9. The tool 2 is used, for example, when performing piping work in a factory or a work site. In this embodiment, the work target member 9 of the tool 2 includes a flange 900 of a pipe joint of a pipe (see Figs. 4 and 5). Furthermore, the part 8 attached to the work target member 9 includes a gasket 80 attached to the flange 900 (see Fig. 5). The tool 2 is used, for example, to fasten a fastening part (for example, a bolt 91 to a nut) passed through an insertion hole 901 of the flange 900 with the gasket 80 disposed between the flanges 900 and 900, thereby joining the flanges 900 to each other.

[0024] An example of the tool 2 used for this type of work is an electric impact wrench that tightens or loosens fastening parts by applying an impact force. The tool 2 is not limited to an electric impact wrench, and may be an electric impact driver, or an electric torque wrench or electric drill driver that does not apply an impact force. Such a tool 2 is capable of tightening or loosening fastening parts such as bolts, nuts, and screws. In this embodiment, it is assumed that the tool 2 is an impact wrench.

[0025] 1, the tool 2 includes a working unit 24, an imaging unit 25, an operation unit 26, a control unit 27, a communication unit 28, a notification unit 29, and a battery pack 201. In this embodiment, the battery pack 201 is included in the components of the tool 2, but it is not essential that the battery pack 201 is included in the components of the tool 2, and the components of the tool 2 do not necessarily need to include the battery pack 201.

[0026] 2 and 3, the tool 2 further includes a body 20. The body 20 holds or houses a working unit 24, an imaging unit 25, an operation unit 26, a control unit 27, a communication unit 28, and a notification unit 29.

[0027] As shown in Figs. 2 and 3, the body 20 of the tool 2 has a body portion 21, a grip portion 22, and an attachment portion 23. The body portion 21 is formed in a tubular shape (here, cylindrical). The grip portion 22 protrudes from a part of the circumferential surface of the body portion 21 along a normal direction (radial direction of the body portion 21). The attachment portion 23 is provided so that the battery pack 201 can be removably attached thereto. The attachment portion 23 is provided at the tip portion of the grip portion 22. In other words, the body portion 21 and the attachment portion 23 are connected by the grip portion 22.

[0028] A working unit 24 is held in the body portion 21.

[0029] As shown in FIGS. 1 to 3, the working unit 24 includes a drive unit 240, an output shaft 241, and a transmission mechanism 245.

[0030] The driving unit 240 is configured to operate using power (electrical energy) supplied from the battery pack 201, which is a power source. The driving unit 240 has, for example, a motor 249 and a driving circuit. The motor 249 is, for example, a brushless motor. The driving circuit includes, for example, an inverter circuit, and rotates the motor 249 using the supplied power (electrical energy).

[0031] 2 and 3, the output shaft 241 protrudes from one end surface in the axial direction of the body portion 21. The output shaft 241 is configured to rotate about a rotation axis Ax1 along the protruding direction of the output shaft 241 in association with the rotation of the motor 249. That is, the drive unit 240 drives the output shaft 241 to rotate the output shaft 241 around the rotation axis Ax1.

[0032] In the tool 2 of this embodiment, the output shaft 241 is connected to the shaft of the motor 249 via a transmission mechanism 245. The transmission mechanism 245 has a speed reduction mechanism such as a planetary gear mechanism. Since the tool 2 of this embodiment is an impact wrench, the transmission mechanism 245 further has an impact mechanism 246 as shown in Fig. 1. The impact mechanism 246 applies an impact force in the rotational direction to the output shaft 241 when the tightening torque exceeds a predetermined level.

[0033] 2 and 3, a tool tip 242 is removably coupled to the output shaft 241. The tool tip 242 is, for example, a cylindrical socket 243 for rotating a fastening part (for example, a bolt 91 or a nut, etc.). The socket 243 rotates around the rotation axis Ax1 together with the output shaft 241. The size of the socket 243 attached to the output shaft 241 is appropriately selected by the user in accordance with the size of the fastening part.

[0034] With this configuration, when the motor 249 rotates, the output shaft 241 rotates and the socket 243 rotates together with the output shaft 241. At this time, if the socket 243 is fitted to a fastening part, the fastening part rotates together with the socket 243, thereby realizing an operation such as fastening or loosening the fastening part.

[0035] The tip tool 242 is not limited to the socket 243, and may be, for example, a socket anvil. The socket anvil is also removably attached to the output shaft 241. In this case, a bit (for example, a driver bit or a drill bit) can be attached via the socket anvil.

[0036] The grip unit 22 is a portion that the user grips when performing work. The grip unit 22 is provided with a trigger switch 261. The trigger switch 261 is a switch for controlling the on / off of the operation of the drive unit 240. The trigger switch 261 is an example of the operation unit 26. The trigger switch 261 has an initial position and an on position, and the motor 249 rotates when the user pushes or pulls the trigger switch 261 to the on position. In addition, the trigger switch 261 can adjust the rotation speed (also called the number of rotations) of the motor 249, i.e., the rotation speed of the output shaft 241, according to the pulling amount (operation amount).

[0037] The grip unit 22 is also provided with a forward / reverse switch 221. The forward / reverse switch 221 is a switch that switches the rotation direction of the output shaft 241 between forward and reverse rotation. For example, forward rotation is a direction in which the tool 242 is rotated in a direction to tighten a fastening part, and may be a direction in which the tool 242 is rotated clockwise when the tool 242 is viewed from the output shaft 241 side. Reverse rotation is a direction in which the tool 242 is rotated in a direction to loosen a fastening part, and may be a direction in which the tool 242 is rotated counterclockwise when the tool 242 is viewed from the output shaft 241 side.

[0038] The mounting section 23 is formed in a flat rectangular parallelepiped shape. A battery pack 201 is removably mounted on one surface of the mounting section 23 opposite to the grip section 22.

[0039] The battery pack 201 has a resin case 202 formed in a rectangular parallelepiped shape. The case 202 houses a storage battery (e.g., a lithium ion battery). The battery pack 201 supplies power to a drive unit 240, an imaging unit 25, a control unit 27, a communication unit 28, a notification unit 29, and the like.

[0040] The mounting unit 23 is also provided with an operation panel 231. The operation panel 231 has, for example, a plurality of push button switches 232 and a plurality of LEDs (Light Emitting Diodes) 233. The operation panel 231 can be used to perform various settings and status confirmation related to the tool 2. For example, a user can operate the push button switches 232 of the operation panel 231 to capture an image using the imaging unit 25, check the remaining capacity of the battery pack 201, and the like.

[0041] The imaging unit 25 photographs the work target workpiece 9 to generate a captured image. The imaging unit 25 is, for example, a camera having an imaging element and a lens. The imaging unit 25 is mounted on the tool 2. In this embodiment, as shown in FIG. 2, the imaging unit 25 is held on the body 20 (torso portion 21) of the tool 2. The imaging unit 25 is mounted facing the tip side of the output shaft 241. When, for example, a predetermined switch (for example, any one of the multiple push button switches 232) provided on the tool 2 is operated, the imaging unit 25 photographs the imaging range to generate a captured image.

[0042] The mounting unit 23 is provided with a light-emitting unit 234 for photographing. The light-emitting unit 234 includes, for example, an LED. The light-emitting unit 234 irradiates light toward the work target material 9 when the imaging unit 25 photographs the work target material 9. The light-emitting unit 234 can be turned on / off, for example, by operating the operation panel 231. By providing the light-emitting unit 234 in the tool 2, the amount of light received by the imaging unit 25 can be increased.

[0043] The captured image generated by the imaging unit 25 is transmitted to the processing device 3 via the communication unit .

[0044] The communication unit 28 includes a communication interface for communicating with the processing device 3. The communication unit 28, for example, performs wireless communication with the processing device 3. The communication unit 28 communicates with the processing device 3 by a wireless communication method conforming to standards such as Wi-Fi (registered trademark), Bluetooth (registered trademark), ZigBee (registered trademark), or low-power radio (specified low-power radio) that does not require a license.

[0045] The communication unit 28 transmits a first signal S1 including information about the captured image to the processing device 3. In addition, the communication unit 28 receives a second signal S2 including information about the determination result (described later) from the processing device 3.

[0046] The processing device 3 is configured, for example, by a PLC (Programmable Logic Controller), a PC (Personal Computer), a server, etc. The processing device 3 may be a portable information terminal such as a smartphone or a tablet terminal.

[0047] As shown in FIG. 1, the processing device 3 includes a communication unit 31 and a processing unit 32.

[0048] The communication unit 31 includes a communication interface for communicating with the tool 2 (communication unit 28). The communication unit 31 performs, for example, wireless communication with the tool 2.

[0049] The processing unit 32 mainly comprises a computer system having one or more processors and one or more memories. In the processing unit 32, the one or more processors execute a program recorded in the memory, thereby realizing the functions of the processing unit 32. The program may be pre-recorded in the memory, may be provided via a telecommunication line such as the Internet, or may be provided by recording it on a non-transitory recording medium such as a memory card.

[0050] As shown in FIG. 1, the processing unit 32 has the functions of an image acquisition unit 321, an image processing unit 322, a part determination unit 323, a result output unit 324, and the like.

[0051] The image acquisition unit 321 acquires information about the captured image from the first signal S1 received by the communication unit 31.

[0052] The image processing unit 322 performs appropriate image processing such as feature extraction, area detection, edge detection, etc. on the captured image acquired by the image acquisition unit 321 in order to distinguish the work target component 9 (flange 900) and the part 8 (gasket 80).

[0053] The part determination unit 323 determines whether the part 8 attached to the work target member 9 is correct or not based on the captured image of the imaging unit 25. The part determination unit 323 determines whether the part 8 attached to the work target member 9 is correct or not based on the captured image after processing by the image processing unit 322. Note that "determining whether the part 8 attached to the work target member 9 is correct or not" means determining whether the part 8 attached to the work target member 9 is an appropriate part 8 for the work target member 9 based on a predetermined determination criterion. In the tool system 1 of this embodiment, the part determination unit 323 determines whether the gasket 80 attached to the flange 900 is a normal part or not based on a captured image of the gasket 80 attached to the flange 900. Note that "the part 8 is appropriate for the work target member 9" may include, in the case where the work target member 9 is the flange 900 of the pipe 900, that the gasket 80 is an appropriate type for a fluid (component in the pipe) that may pass through the pipe 900.

[0054] In this embodiment, the part determination unit 323 has a function of determining whether or not the part 8 attached to the work target component 9 is a normal part 8, based on the relative dimensional relationship between the work target component 9 and the part 8. "The relative dimensional relationship between the work target component 9 and the part 8" refers to the relative relationship between the dimension of a specified part of the work target component 9 and the dimension of a specified part of the part 8.

[0055] More specifically, the part determination unit 323 determines whether the gasket 80 attached to the flange 900 is a normal part or not based on the relative dimensional relationship between the inner diameter R1 of the flange 900 and the inner diameter R2 of the gasket 80. For example, the part determination unit 323 determines whether the gasket 80 attached to the flange 900 is a normal part or not based on whether the ratio (P1=R2 / R1) of the inner diameter R2 of the gasket 80 to the inner diameter R1 of the flange 900 is within a predetermined numerical range or not. Although not particularly limited, the upper limit of the predetermined numerical range may be selected from values ​​within a range of, for example, 1.3 to 1.5. Furthermore, the lower limit of the predetermined numerical range may be selected from values ​​within a range of, for example, 1.1 to 1.3.

[0056] Fig. 5 shows an example of a captured image in which the correct gasket 80 is attached to the flange 900. Note that, for ease of understanding only, the gasket 80 is hatched with dots in Fig. 5 (and Figs. 6 to 8). In the example of Fig. 5, the value of the ratio P1 is about 1.1, and the part determination unit 323 determines that "the correct part is attached."

[0057] Fig. 6 shows an example of a captured image in which an incorrect gasket 80 is attached to flange 900. In the example of Fig. 6, ratio P1 is about 1.6, and part determination unit 323 determines that "an incorrect part is attached."

[0058] Fig. 7 shows another example of a captured image in which an incorrect gasket 80 is attached to a flange 900. In the example of Fig. 7, the inner diameter R2 of the gasket 80 is smaller than the inner diameter R1 of the flange 900 (P1 = R2 / R1 < 1), and the inner peripheral surface of the flange 900 is hidden by the gasket 80, making it impossible to determine the inner diameter R1 of the flange 900 from the captured image. In this case, the part determination unit 323 determines that "an incorrect part is attached."

[0059] The part determination unit 323 may determine whether or not the gasket 80 attached to the flange 900 is a normal part based on a dimensional relationship other than the ratio P1 of the inner diameter R2 of the gasket 80 to the inner diameter R1 of the flange 900. For example, the part determination unit 323 may determine whether or not the gasket 80 attached to the flange 900 is a normal part based on the ratio of the outer diameter R4 of the gasket 80 to the outer diameter R3 of the flange 900, and, in the case where an insertion hole is formed in the gasket 80, the dimensional relationship and positional relationship between the insertion hole of the gasket 80 and the insertion hole 901 of the flange 900, etc.

[0060] The part determination unit 323 may determine whether or not the gasket 80 attached to the flange 900 is a normal part 8 based on the absolute dimensions of the flange 900 and the absolute dimensions of the gasket 80. The absolute dimensions of the flange 900 and the absolute dimensions of the gasket 80 can be obtained based on, for example, the distance from the imaging unit 25 to the flange 900 or the gasket 80 and the imaging conditions (magnification, etc.) of the imaging unit 25, or can be obtained based on a reference scale shown in the captured image.

[0061] The part determination unit 323 may determine whether the gasket 80 attached to the flange 900 is a normal part or not based on information other than the relative dimensional relationship between the flange 900 and the gasket 80. For example, the part determination unit 323 may determine the material of the gasket 80 from the color or the like of the gasket 80 determined from the captured image, and determine whether the gasket 80 attached to the flange 900 is a normal part or not based on the determined material. In addition, the part determination unit 323 may determine whether the gasket 80 attached to the flange 900 is a normal part or not based on whether at least a part of the insertion hole 901 of the flange 900 is hidden by the gasket 80. FIG. 8 shows an example of a captured image in which a part of the insertion hole 901 of the flange 900 is hidden because an incorrect gasket 80 is attached.

[0062] The part determination unit 323 may determine whether the gasket 80 attached to the flange 900 is a normal part or not based on multiple conditions (for example, a condition whether the ratio P1 is within a predetermined numerical range and a condition whether at least a portion of the insertion hole 901 of the flange 900 is hidden by the gasket 80).

[0063] In addition, there are cases where a plurality of (two) gaskets 80 are attached to the flange 900. In this case, an image may be taken with the plurality of gaskets 80 attached to the flange 900, and if all of the plurality of gaskets 80 are "correct parts", the part determination unit 323 may determine that the gasket 80 attached to the flange 900 is a normal part. For example, an image may be taken with the first of the two gaskets 80 attached to the flange 900, and then an image may be taken with the second gasket 80 attached to the flange 900. Then, the part determination unit 323 may perform determination based on both (two) captured images. In addition, if only the determination of the dimensions is to be performed, an image may be taken with the two gaskets 80 attached to the flange 900 in a stacked state, and a determination may be performed based on the obtained captured image. The number of captured images for which the part determination unit 323 performs determination may be changeable in advance, for example, using the operation panel 23 or the like.

[0064] The part determination unit 323 generates a determination result. The determination result may be, for example, either "correct" indicating that the part 8 attached to the work target component 9 is a correct part, or "incorrect" indicating that the part 8 attached to the work target component 9 is an incorrect part. Note that the part determination unit 323 may determine "incorrect" when the captured image does not include the part 8 or the work target component 9.

[0065] The result output unit 324 outputs the determination result by the part determination unit 323. The result output unit 324 causes the communication unit 31 to transmit, to the tool 2, a second signal S2 including information on the determination result.

[0066] The control unit 27 of the tool 2 acquires information on the determination result from the second signal S2 received by the communication unit .

[0067] The control unit 27 mainly comprises, for example, a microcontroller having one or more processors and one or more memories. The microcontroller realizes the function of the control unit 27 by executing a program recorded in one or more memories with one or more processors. The program may be recorded in the memory in advance, or may be provided by recording it on a non-transitory recording medium such as a memory card, or may be provided through an electric communication line. In other words, the program is a program for causing one or more processors to function as the control unit 27.

[0068] As shown in FIG. 1, the control unit 27 has the functions of a drive control unit 271, a mode switching unit 272, a notification control unit 273, and the like.

[0069] The drive control unit 271 controls the operation of the drive unit 240. The drive control unit 271 (control unit 27) controls the operation of the working unit 24 by controlling the operation of the drive unit 240. The drive control unit 271 controls the rotation operation of the motor 249. In the work mode, the drive control unit 271 controls the operation of the drive unit 240 so that the motor 249 rotates at a rotation speed according to the retraction amount of the trigger switch 261.

[0070] Further, the drive control unit 271 controls the drive unit 240 so that the fastening torque applied to the fastening part becomes the torque setting value. The drive control unit 271 has a torque estimation function for estimating the magnitude of the fastening torque. In the present embodiment, as an example, the drive control unit 271 estimates the magnitude of the fastening torque based on the rotation speed of the motor 249 and the like until the estimated value of the fastening torque reaches the seating determination level. When the estimated value of the fastening torque reaches the seating determination level, the drive control unit 271 estimates the magnitude of the fastening torque based on the number of strikes of the impact mechanism 246. When the number of strikes of the impact mechanism 246 reaches a threshold number of times according to the torque setting value, the drive control unit 271 determines that the fastening torque has reached the torque setting value and stops the motor 249. This allows the tool 2 to fasten the fastening part with the fastening torque according to the torque setting value. Note that the torque estimation function of the drive control unit 271 is not limited to this. For example, an estimate of the fastening torque may be obtained using a torque sensor, or an estimate of the fastening torque may be obtained based on the value of the current flowing through the motor 249.

[0071] As described above, the control unit 27 has two operation modes, the working mode and the pause mode. The mode switching unit 272 switches the operation mode of the control unit 27.

[0072] When the permission conditions are satisfied, the mode switching unit 272 sets the operation mode of the control unit 27 to the work mode. For example, when the permission conditions are satisfied while operating in the sleep mode, the mode switching unit 272 switches the operation mode of the control unit 27 from the sleep mode to the work mode.

[0073] When the pause condition is satisfied, the mode switching unit 272 sets the operation mode of the control unit 27 to the pause mode. For example, when the pause condition is satisfied while operating in the work mode, the mode switching unit 272 switches the operation mode of the control unit 27 from the work mode to the pause mode.

[0074] The permission condition includes receiving a second signal S2 including information of "positive" from the processing device 3. That is, the permission condition includes determining that the part 8 (gasket 80) attached to the work target component 9 (flange 900) is a normal part by the part determination unit 323. For example, when the part 8 (gasket 80) attached to the work target component 9 (flange 900) is determined to be a normal part by the part determination unit 323, the mode switching unit 272 sets the operation mode of the control unit 27 to the work mode.

[0075] The pause condition includes that a predetermined time (first predetermined time) has passed since the control unit 27 started operating in the work mode without the operation unit 26 (trigger switch 261) being operated (first pause condition). The first pause condition can be, for example, that the first predetermined time has passed since the control unit 27 started operating in the work mode without the operation unit 26 (trigger switch 261) being turned on. The control unit 27 has, for example, a function as a first timer 274 that measures the first predetermined time. For example, when the control unit 27 starts operating in the work mode, the control unit 27 causes the first timer 274 to start measuring the first predetermined time. When the first timer 274 completes measuring the first predetermined time without the operation unit 26 being operated, the mode switching unit 272 switches the operation mode of the control unit 27 from the work mode to the pause mode. In short, the control unit 27 has a function of shifting to the pause mode if the operation unit 26 is not operated during a predetermined time (first predetermined time) after shifting to the work mode.

[0076] The pause condition includes that a predetermined time (second predetermined time) has elapsed since the operation unit 26 (trigger switch 261) was operated while the control unit 27 is operating in the work mode (second pause condition). The second pause condition may be, for example, that the second predetermined time has elapsed without the operation unit 26 being turned on after the operation unit 26 (trigger switch 261) was last switched from on to off while the control unit 27 is operating in the work mode. The control unit 27 has, for example, a function as a second timer 275 that measures the second predetermined time. For example, when the operation unit 26 is switched from on to off while the control unit 27 is operating in the work mode, the control unit 27 causes the second timer 275 to start measuring the second predetermined time. When the second timer 275 has finished measuring the second predetermined time, the mode switching unit 272 switches the operation mode of the control unit 27 from the work mode to the pause mode. In short, the control unit 27 has a function of transitioning to the sleep mode if the operation unit 26 is not operated for a predetermined time (second predetermined time) during operation in the work mode.

[0077] The first predetermined time is not particularly limited, but may be set to a value within a range of, for example, 3 minutes to 10 minutes, or may be set to a value within a range of 5 minutes to 10 minutes.

[0078] The second predetermined time is not particularly limited, and may be set to a value within a range of, for example, 1 to 5 minutes, or may be set to a value within a range of 3 to 5 minutes. The second predetermined time may be shorter than the first predetermined time. Alternatively, the second predetermined time may be the same as the first predetermined time. When the first predetermined time and the second predetermined time are the same, the first timer 274 and the second timer 275 may be realized by a common timer.

[0079] The pause condition includes that the power supply of the tool 2 is turned on (third pause condition). For example, when the power supply of the tool 2 is turned off once and then turned on again, the mode switching unit 272 sets the operation mode of the control unit 27 to the pause mode. That is, when the power supply of the tool 2 is turned off while the control unit 27 is operating in the work mode and then turned on again, the control unit 27 resumes operation in the pause mode. "The power supply of the tool 2 is turned off" may mean, for example, that the main power switch provided on the tool 2 is turned off or the battery pack 201 is removed from the mounting unit 23, causing the control unit 27 to stop operating (or to enter a sleep mode in which only the minimum operation is performed). "The power supply of the tool 2 is turned on" may mean, for example, that the battery pack 201 is mounted on the mounting unit 23 and the main power switch is turned on, causing the control unit 27 to start operating.

[0080] When at least one of the first to third pause conditions is satisfied, the mode switching unit 272 switches the operation mode of the control unit 27 from the work mode to the pause mode.

[0081] The notification control unit 273 controls the notification unit 29. The notification unit 29 notifies the (current) operation mode of the control unit 27. The notification unit 29 includes, for example, a light-emitting unit 291. The light-emitting unit 291 includes an LED. The light-emitting unit 291 is provided at an end of the trunk portion 21 of the body 20 on the opposite side to the output shaft 241 so that the user can easily view the light-emitting unit 291 while working (see FIG. 3).

[0082] The notification control unit 273 notifies the current operation mode of the control unit 27, for example, by changing the light emission color from the light-emitting unit 291 according to the operation mode of the control unit 27. That is, the notification control unit 273 lights up the light-emitting unit 291 in a first color in the work mode, and lights up the light-emitting unit 291 in a second color different from the first color in the pause mode. The notification control unit 273 may notify the current operation mode of the control unit 27 by switching the lighting state (between on, blinking, and off) of the light-emitting unit 291 according to the operation mode of the control unit 27.

[0083] By providing the notification unit 29, the user of the tool 2 can easily know that the operation mode of the control unit 27 is the pause mode. Therefore, the user can easily know that the reason why the driving unit 240 does not operate even when the operation unit 26 is operated is because the control unit 27 is operating in the pause mode, and is less likely to mistake this for, for example, a malfunction of the tool 2. This can improve user convenience.

[0084] (1.3) Operation An example of the operation of the tool system 1 of this embodiment will be described below with reference to FIGS.

[0085] When a user wishes to perform a task on a work target member 9 using the tool 2, the user mounts the battery pack 201 in the mounting portion 23 and turns on the main power switch to start up the tool 2 (ST1). Upon startup, the control portion 27 of the tool 2 starts operating in a pause mode (ST2). It is assumed that the processing device 3 is, for example, a PC, which has already been started up.

[0086] When the operation starts in the pause mode, the control unit 27 waits for the user to capture an image using the imaging unit 25 (ST3). The user performs an operation to attach the part 8 (gasket 80) to the work target member 9 (flange 900), and captures an image of the work target member 9 using the imaging unit 25 of the tool 2 with the part 8 attached to the work target member 9 (ST3: Yes).

[0087] When the image capturing unit 25 captures an image, a first signal S1 including information on the captured image is transmitted to the processing device 3 via the communication unit 28. When the processing device 3 receives the first signal S1, it acquires the captured image from the first signal S1 (by the image acquisition unit 321) and performs image processing on the captured image (by the image processing unit 322) (ST4). The processing device 3 also determines whether the part 8 attached to the work target member 9 is correct or incorrect based on the image-processed captured image (by the part determination unit 323) (ST5), and transmits a second signal S2 including information on the determination result to the tool 2 (by the result output unit 324) (ST6).

[0088] The control unit 27 (mode switching unit 272) of the tool 2 judges whether the judgment result included in the second signal S2 is "correct" or "incorrect" (ST7). If the judgment result is "incorrect" (ST7: No), the control unit 27 maintains operation in the pause mode. In the pause mode, the control unit 27 does not operate the working unit 24 even if the operation unit 26 is operated by the user.

[0089] If the determination result is "positive" (ST7: Yes), the control unit 27 (mode switching unit 272) starts operation in the work mode (ST8). When operation in the work mode starts, the control unit 27 starts measuring the first predetermined time by the first timer 274 (ST9).

[0090] The control unit 27 waits for an operation on the operation unit 26 while the first predetermined time is being counted by the first timer 274. After performing an operation of attaching another flange 900 to the flange 900 to which the gasket 80 is attached and preparing a fastening part while the first timer 274 is counting the first predetermined time, the user operates the operation unit 26 (ST10: Yes) to perform an operation on the work target member 9 (ST11). Note that if the operation unit 26 is not operated (ST10: No) and the counting of the first predetermined time by the first timer 274 ends (ST12: Yes), the control unit 27 (mode switching unit 272) switches the operation mode to the sleep mode.

[0091] In process ST11, when the work is completed (more specifically, the trigger switch 261 as the operation unit 26 is turned off), the control unit 27 starts measuring the second predetermined time by the second timer 275 (ST13).

[0092] The control unit 27 waits for an operation on the operation unit 26 while the second predetermined time is being counted by the second timer 275. The user operates the operation unit 26 (ST14: Yes) while the second predetermined time is being counted by the second timer 275, and performs work on the work target member 9 (ST15). If the operation unit 26 is not operated (ST14: No) and the counting of the second predetermined time by the second timer 275 ends (ST16: Yes), the control unit 27 (mode switching unit 272) switches the operation mode to the sleep mode.

[0093] In process ST15, when the work is completed (more specifically, when the trigger switch 261 as the operation unit 26 is turned off), the control unit 27 resets the second timer 275 and starts counting the second predetermined time again from the beginning (ST13).

[0094] It should be noted that the flowcharts shown in FIGS. 9 and 10 are merely examples, and the order of the processes may be changed as appropriate, and processes may be added or deleted as appropriate.

[0095] (1.4) Advantages In the tool system 1 of this embodiment, the control unit 27 of the tool 2 has a function of changing the operation mode from the pause mode to the work mode according to the determination result by the part determination unit 323. This prevents a situation in which the tool 2 performs work on the work target member 9 without a determination being made by the part determination unit 323. Therefore, according to the tool system 1 of this embodiment, it is possible to reduce the possibility of a defect occurring in the work target member 9 after work.

[0096] Furthermore, in the tool system 1 of this embodiment, the control unit 27 has a function of transitioning to the pause mode if the operation unit 26 is not operated within a predetermined time (first predetermined time) after transitioning to the work mode. As a result, even if the user photographs another work target member 9 in advance (e.g., the day before) and the control unit 27 operates in the work mode, the control unit 27 automatically transitions to the pause mode after the predetermined time has elapsed. This reduces the possibility that work is performed on the work target member 9 in a work mode started based on a captured image of another work target member 9, and makes it possible to further reduce the possibility that a defect occurs in the work target member 9 after the work.

[0097] Furthermore, in the tool system 1 of this embodiment, the control unit 27 sets a time (second predetermined time) for waiting for the next operation on the operation unit 26 after the operation of the operation unit 26 has been performed once to be shorter than a time (first predetermined time) for waiting for the operation of the operation unit 26 after starting operation in the work mode. This makes it easier for the control unit 27 to transition to the sleep mode after completing work on one work target member 9 and before performing work on another work target member 9. This prevents a situation in which work is performed on multiple work target members 9 in a single work mode without going through the judgment by the part judgment unit 323, and makes it possible to further reduce the possibility of a defect occurring in the work target member 9 after work.

[0098] In addition, in the tool system 1 of the present embodiment, the tool 2 includes the notification unit 29, so that the user can easily know that the driving unit 240 does not operate even when the operating unit 26 is operated because the control unit 27 is operating in the pause mode. This can improve user convenience.

[0099] (2) Variations The above embodiment is merely one of various embodiments of the present disclosure. The above embodiment can be modified in various ways depending on the design and the like as long as the object of the present disclosure can be achieved.

[0100] The control unit 27 and the processing unit 32 in the present disclosure include a computer system. The computer system is mainly composed of a processor and a memory as hardware. The function of the control unit 27 or the processing unit 32 in the present disclosure is realized by the processor executing a program recorded in the memory of the computer system. The program may be pre-recorded in the memory of the computer system, may be provided through an electric communication line, or may be provided by being recorded in a non-transitory recording medium such as a memory card, an optical disk, or a hard disk drive that can be read by the computer system. The processor of the computer system is composed of one or more electronic circuits including a semiconductor integrated circuit (IC) or a large-scale integrated circuit (LSI). The integrated circuits such as IC or LSI referred to here are called by different names depending on the degree of integration, and include integrated circuits called system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration). Furthermore, a field-programmable gate array (FPGA) that is programmed after the manufacture of the LSI, or a logic device that can reconfigure the connection relationship inside the LSI or the circuit partition inside the LSI, can also be adopted as a processor. The electronic circuits may be integrated in one chip or distributed among multiple chips. The chips may be integrated in one device or distributed among multiple devices. The computer system referred to here includes a microcontroller having one or more processors and one or more memories. Thus, the microcontroller is also composed of one or more electronic circuits including a semiconductor integrated circuit or a large-scale integrated circuit.

[0101] Moreover, it is not essential that the multiple functions of each of the control unit 27 and the processing unit 32 are concentrated in one housing. The components of each of the control unit 27 and the processing unit 32 may be distributed across multiple housings. Conversely, the multiple functions of each of the control unit 27 and the processing unit 32 may be concentrated in one housing. Furthermore, at least some of the functions of each of the control unit 27 and the processing unit 32 may be realized by the cloud (cloud computing) or the like.

[0102] (2.1) Variation 1 11, the tool system 1 of this modification does not include the processing device 3, and differs from the tool system 1 of the above embodiment in that the control unit 27 of the tool 2 includes an image processing unit 276 and a part determination unit 277. That is, in the tool system 1 of this modification, the part determination unit 277 is provided in the portable tool 2.

[0103] The tool system 1 of this modified example also makes it possible to reduce the possibility of a defect occurring in the work target member 9 after work. Also, there is no need to prepare a processing device 3 having the function of the part determination unit 323.

[0104] (2.2) Variation 2 The tool system 1 of this modified example differs from the tool system 1 of the above embodiment in the operation of the mode switching unit 272 of the tool 2.

[0105] In the tool system 1 of this modified example, the mode switching unit 272 of the control unit 27 has a function of changing the predetermined time (first predetermined time) depending on the type of the work target member 9 (flange 900).

[0106] For example, if the absolute dimension of the flange 900 is large (and heavy), it may take a long time for the user to attach another flange 900 to the flange 900 to which the gasket 80 is attached. Therefore, the mode switching unit 272 lengthens the predetermined time (first predetermined time) according to the type of the flange 900 as the work target member 9, for example, as the absolute dimension of the flange 900 is larger. Note that the absolute dimension of the flange 900 tends to be larger as the number of insertion holes 901 provided in the flange 900 increases, for example, so that it can be roughly determined from the number of insertion holes 901 of the flange 900 in the captured image captured by the imaging unit 25. The number of insertion holes 901 provided in the flange 900 may be determined by the processing unit 32 (for example, the image processing unit 322 or the part determination unit 323) of the processing device 3 and transmitted to the tool 2.

[0107] By changing the predetermined time period depending on the type of flange 900, convenience for the user can be improved.

[0108] The control unit 27 (mode switching unit 272) may change the second predetermined time period depending on the type of the work target member 9 (flange 900).

[0109] (2.3) Other Modifications In one modified example, the notification unit 29 is not limited to a configuration including the light emitting unit 291. The notification unit 29 may include, for example, a display such as a liquid crystal display, a speaker, a communication unit for communicating with an external processing device (for example, the communication unit 28 that communicates with the processing device 3), and the like. The notification control unit 273 may notify the determination result by the part determination unit 323, for example, by displaying an image on the display, outputting sound or artificial voice from the speaker, or transmitting information to the processing device through communication.

[0110] In one modified example, the mode switching unit 272 may switch the operation mode of the control unit 27 from the work mode to the pause mode based on a criterion other than the passage of a predetermined time. For example, the mode switching unit 272 may switch the operation mode of the control unit 27 from the work mode to the pause mode when one or more predetermined times of fastening work are completed. The completion of one fastening work may be determined, for example, based on a function of detecting the seating of the fastening parts. When performing the fastening work of multiple fastening parts on the flange 900, first, the multiple fastening parts are provisionally fastened, and then, in the main fastening, the multiple fastening parts are fastened with a target torque. Therefore, the completion of the predetermined number of fastening works may be determined based on the number of times that seating is detected, rather than the number of times that the operating unit 26 is operated.

[0111] In one modification, the tool 2 may be capable of performing the operation of reversely rotating (loosening) the fastening parts even in the idle mode. This allows the tool 2 to loosen all the fastening parts once and switch back to the work mode to perform the work again if the fastening operation of multiple fastening parts cannot be completed during the work mode. The tool 2 may also be used to dismantle piping.

[0112] In one modified example, the start point of timing by the second timer 275 (i.e., the start point of timing the second specified time) is not limited to the end point of operation on the operation unit 26 (the OFF point of the trigger switch 261), but may be the start point of operation on the operation unit 26 (the ON point of the trigger switch 261).

[0113] (3) Description As described above, the tool system (1) of the first embodiment includes the portable tool (2). The portable tool (2) includes the working unit (24), the imaging unit (25), the operation unit (26), and the control unit (27). The working unit (24) includes a motor (249). The working unit (24) rotates the motor (249) with power supplied from a power source to perform work on the work target member (9). The imaging unit (25) generates a captured image. The operation unit (26) is operated by a user. The control unit (27) controls the operation of the working unit (24). The control unit (27) has, as operation modes, a work mode in which the working unit (24) is operated in response to a user's operation of the operation unit (26) and a pause mode in which the working unit (24) is not operated even if the operation unit (26) is operated by the user. The tool system (1) includes a part determination unit (277, 323). The part determination unit (277, 323) determines whether the part (8) attached to the work target member (9) is correct or not based on the captured image of the imaging unit (25). The control unit (27) has a function of changing the operation mode from a pause mode to a work mode according to the determination result of the part determination unit (277, 323).

[0114] According to this aspect, it is possible to prevent a situation in which the portable tool (2) performs work on the work target component (9) without the component (8) being identified by the component identification unit (277, 323), thereby reducing the possibility of a defect occurring in the work target component (9) after the work.

[0115] In the second aspect of the tool system (1), in the first aspect, the control unit (27) has a function of transitioning to the sleep mode if the operating unit (26) is not operated within a predetermined time (first predetermined time) after transitioning to the work mode.

[0116] According to this embodiment, the possibility of attaching the wrong part (8) to the work target member (9) is reduced, and it is possible to further reduce the possibility of a defect occurring in the work target member (9) after the work is performed.

[0117] In the third aspect of the tool system (1), in the first or second aspect, the part determination unit (277, 323) has a function of determining whether or not the part (8) attached to the work target component (9) is a normal part (8) based on the relative dimensional relationship between the work target component (9) and the part (8).

[0118] According to this embodiment, the possibility of attaching the wrong part (8) to the work target member (9) is reduced, and it is possible to further reduce the possibility of a defect occurring in the work target member (9) after the work is performed.

[0119] In the tool system (1) of the fourth aspect, in any one of the first to third aspects, the portable tool (2) further includes a notification unit (29) that notifies a result of the determination by the part determination unit (277, 323).

[0120] According to this aspect, convenience for the user is improved.

[0121] In a fifth aspect of the tool system (1) in any one of the first to fourth aspects, the work target member (9) includes a flange (900) of a pipe joint of a pipe. The part (8) includes a gasket (80) to be attached to the flange (900). The part determination unit (277, 323) determines whether the gasket (80) attached to the flange (900) is a normal part or not, based on a captured image of the gasket (80) attached to the flange (900).

[0122] According to this aspect, it is possible to reduce the possibility of malfunction occurring in the piping after the work is completed.

[0123] In the sixth aspect of the tool system (1), in the fifth aspect, the part determination unit (277, 323) determines whether the gasket (80) attached to the flange (900) is a normal part or not based on the relative dimensional relationship between the inner diameter (R1) of the flange (900) and the inner diameter (R2) of the gasket (80).

[0124] According to this embodiment, the possibility of attaching an incorrect gasket (80) to the flange (900) is reduced, and it is possible to further reduce the possibility of a malfunction occurring in the piping after the work.

[0125] In the seventh aspect of the tool system (1), in the fifth or sixth aspect, the part determination unit (277, 323) determines whether or not the gasket (80) attached to the flange (900) is a normal part based on whether at least a portion of the insertion hole (901) formed in the flange (900) and through which a fastening part (bolt 91) for connecting the flange (900) to another flange (900) is passed is hidden by the gasket (80).

[0126] According to this embodiment, the possibility of attaching an incorrect gasket (80) to the flange (900) is reduced, and it is possible to further reduce the possibility of a malfunction occurring in the piping after the work.

[0127] In the tool system (1) of the eighth aspect, in any one of the fifth to seventh aspects, the control unit (27) has a function of transitioning to the pause mode if the operation unit (26) is not operated for a predetermined time after transitioning to the work mode. The control unit (27) has a function of changing the predetermined time depending on the type of the flange (900).

[0128] According to this aspect, convenience for the user is improved.

[0129] In the tool system (1) of the ninth aspect, in any one of the first to eighth aspects, the part determination unit (277, 323) is provided in the portable tool (2).

[0130] According to this embodiment, it is possible to reduce the possibility that a defect will occur in the work target member (9) after the work is completed. [Explanation of symbols]

[0131] 1 Tool System 2 Tools (portable tools) 24 Working Section 249 Motor 25 Imaging unit 26 Control section 27 Control Unit 277 Parts Judging Section 29 Notification Department 323 Parts Judging Department 8 parts 80 Gasket 9 Work target material 900 flange 901 Insertion hole 91 Bolt (fastening part) R1 Inner diameter R2 Inner diameter

Claims

1. A tool system including a portable tool, The portable tool includes: a working unit including a motor and configured to rotate the motor using power supplied from a power source to perform a task on a work target member; an imaging unit that generates a captured image; an operation unit operated by a user; A control unit that controls the operation of the working unit, The control unit has the following operation modes: a work mode in which the working unit is operated in response to an operation of the user on the operation unit; a sleep mode in which the working unit is not operated even if the operation unit is operated by the user, The tool system includes a part determination unit that determines whether a part attached to the work target member is correct or incorrect based on the captured image of the imaging unit, The control unit has a function of changing the operation mode from the sleep mode to the work mode depending on the determination result by the part determination unit. Tool system.

2. The control unit has a function of transitioning to the sleep mode if the operation unit is not operated for a predetermined time after transitioning to the work mode. The tool system of claim 1 .

3. the part determination unit has a function of determining whether the part attached to the work target member is a normal part or not based on a relative dimensional relationship between the work target member and the part. The tool system of claim 1 .

4. The portable tool further includes a notification unit that notifies a result of the determination by the part determination unit. The tool system of claim 1 .

5. The work target member includes a flange of a pipe joint of a piping, The component includes a gasket attached to the flange; the part determination unit determines whether or not the gasket attached to the flange is a normal part based on the captured image of the gasket attached to the flange. The tool system of claim 1 .

6. the part determination unit determines whether or not the gasket attached to the flange is a normal part based on a relative dimensional relationship between an inner diameter of the flange and an inner diameter of the gasket. The tool system of claim 5.

7. the part determination unit determines whether the gasket attached to the flange is a normal part or not based on whether at least a part of an insertion hole formed in the flange and through which a fastening part for connecting the flange to another flange is passed is hidden by the gasket. The tool system of claim 5.

8. The control unit has a function of transitioning to the sleep mode if the operation unit is not operated for a predetermined time after transitioning to the work mode, The control unit has a function of changing the predetermined time depending on the type of the flange. The tool system of claim 5.

9. The part determination unit is provided in the portable tool. The tool system of claim 1 .

Images