JP2023058372A - Tool system and program for tool system - Google Patents

Abstract

To also improve a management property and traceability, while allowing setting of a target torque for both control equipment and a fastening tool in order to secure workability.SOLUTION: A tool system 100 includes a fastening tool 10, and control equipment 20 capable of communicating with the fastening tool 10. The fastening tool 10 and the control equipment 20 both comprise a target torque setting part C2, 22 for setting a target torque at fastening work time. The control equipment 20 additionally comprises a function lock part 24 which switches from a setting possible state allowing setting of a target torque in the fastening tool, to a setting disabled state where setting of a target torque is disabled.SELECTED DRAWING: Figure 6

Description

The present invention relates to a tool system and a tool system program.

A conventional tool system includes a tightening tool such as a torque wrench and a control device capable of communicating with the tightening tool, as shown in Patent Document 1.

In such a tool system, for example, when tightening bolts of different sizes, it may be necessary to reset the target torque in the middle of the work, and the control device must be operated each time. workability is impaired.

Therefore, in order to improve usability, there is a configuration in which the target torque can be changed not only by operating the control device but also by operating the tightening tool.

However, if the target torque can be changed on the tightening tool side in this way, there is a possibility that an inappropriate target torque will be set due to, for example, an erroneous operation by the user.

As a result, it may become difficult for the manager who operates the control device to manage the work of the user who handles the tightening tool, and there may arise a problem that the traceability of the work cannot be sufficiently ensured.

JP 2020-49585 A

Therefore, the present invention has been made to solve the above-mentioned problems, and it is possible to secure the improvement of manageability and traceability while enabling the target torque to be set in both the control device and the tightening tool. Its main task is to provide a tool system.

That is, the tool system according to the present invention is a tool system comprising a tightening tool and a control device capable of communicating with the tightening tool, wherein both the tightening tool and the control device are set to a target during tightening work. A target torque setting unit for setting a torque, wherein the control device further includes a function lock unit for switching the tightening tool from a settable state in which the target torque can be set to a settable state in which the target torque cannot be set. It is characterized by having

With the tool system configured in this way, it is possible to set the target torque in both the tightening tool and the control device, thereby ensuring usability, and at the same time, if necessary, the function lock part of the control device can be used. By switching the tightening tool from the settable state to the settable state, the user is prohibited from setting or changing the target torque, thereby improving manageability and traceability.

It is preferable that the control device includes a display control section that displays a symbol indicating that the tightening tool is in the setting disabled state.
With this, it is possible to grasp at a glance that the tightening tool is in a setting disabled state.

As a more specific embodiment, the display control unit may hide the symbol when the tightening tool is in the settable state.

By the way, if the tightening tool has a replaceable head according to the size of the bolt, the effective length of the head must be taken into account in order to accurately calculate the actual tightening torque acting on the bolt. necessary.
Therefore, both the tightening tool and the control device are provided with an effective length setting unit that sets the effective length of the head of the tightening tool, and the function lock unit prevents the tightening tool from Preferably, setting the effective length is also disabled.
In this case, it is possible to accurately calculate the tightening torque by considering the effective length of the head, and to prohibit the user from setting or changing the effective length as necessary. quality and traceability can be guaranteed.

It is preferable to provide a display control unit for switching between a setting screen for setting the target torque and a measurement screen for displaying the tightening torque during tightening work, and for selectively displaying a plurality of target torques on the measurement screen.
In this case, since a plurality of target torques are selectably displayed on the measurement screen, the target torque can be changed without returning from the measurement screen to the setting screen, and work efficiency can be further improved.

Further, a tool system program according to the present invention includes a tightening tool and a control device capable of communicating with the tightening tool, and both the tightening tool and the control device control a target torque during tightening work. in a program used in a tool system comprising a target torque setting unit that sets the tightening tool from a settable state in which the target torque can be set to a settable state in which the target torque cannot be set. It is characterized by exhibiting a function as a switching function lock unit.
Such a tool system program can also provide the same effects as the tool system described above.

According to the present invention configured in this way, it is possible to set the target torque in both the control device and the tightening tool, thereby ensuring workability and improving manageability and traceability.

BRIEF DESCRIPTION OF THE DRAWINGS The schematic diagram which shows the whole structure of the tool system which concerns on one Embodiment of this invention. The functional block diagram which shows the function of the tool system of the same embodiment. The schematic diagram which shows the structure of the torque wrench of the same embodiment. The figure showing the setting screen of the control apparatus of the same embodiment. The figure showing the measurement screen of the control apparatus of the same embodiment. FIG. 5 is a diagram showing display contents for explaining the function of the function locking unit of the embodiment;

An embodiment of a tool system according to the present invention will be described below with reference to the drawings.

<Configuration of tool system>
A tool system 100 of the present embodiment is used for tightening work for tightening objects such as screws and bolts. As shown in FIG. It is provided with a communicable control device 20 .

As shown in FIG. 1, the torque wrench 10 is a so-called digital type equipped with a torque sensor S for detecting torque during tightening work. and an operation button B and a controller C.

The display D1 is provided on the outer peripheral surface of the casing, and displays, for example, the tightening torque acting on the object to be tightened.

The operation button B is provided, for example, in the vicinity of the display D1 on the outer peripheral surface of the casing, and is operated during setting work before the tightening work. used to set the

The controller C is housed in a casing and has a CPU, a memory, and the like. This controller C functions as a tool side display control section C1, a tool side target torque setting section C2, and a tightening torque calculation section C3, as shown in FIG. 2, based on the program stored in the memory. at least perform.

The tool-side display control unit C1 controls the display contents of the display D1. During tightening work, for example, tightening torque is displayed on the display D1, and during setting work, for example, the target torque is displayed on the display D1.

The tool-side target torque setting section C2 receives the torque value input using the operation button B described above, and sets the torque value as the target torque for the work.

As a specific method of inputting the target torque, for example, the target torque may be input while increasing or decreasing the target torque by operating the plus button or the minus button of the operation buttons B. A target torque selected from among the target torques may be input.

The tool-side target torque setting unit C2 of this embodiment also receives and sets an upper limit value and a lower limit value according to the target torque. Specifically, similarly to the target torque, the upper limit and lower limit may be set by inputting via the operation button, or the upper limit and lower limit are automatically set in conjunction with the set target torque. You can let it be.

The tightening torque calculator C3 acquires the detection signal output from the torque sensor S described above and calculates the tightening torque based on this detection signal.

Here, in the torque wrench 10 of this embodiment, as shown in FIG. 3, the head H engaged with the object to be tightened can be exchanged. can be appropriately replaced according to the object to be tightened. Note that the replaceable head H is not limited to that shown in FIG. 3, and may be a head used for a spanner head or a claw foot type wrench.

In such a torque wrench 10 in which the head H can be replaced, even if the magnitude of the detected torque indicated by the detection signal output from the torque sensor S is the same, if the length of the head H differs, Since the length to the point of action (hereinafter referred to as effective length) is different, the tightening torque is different.

A person skilled in the art can of course understand the above-mentioned effective length, but to define it in another way, as shown in FIG. It can also be said that it is the length to the center point of the insertion angle provided in the .

Therefore, as shown in FIG. 2, the torque wrench of this embodiment further has a function as a tool-side effective length setting section C4 that receives and sets the effective length input using the operation button B described above. .

In this configuration, the tightening torque calculator C3 uses the effective length set by the tool-side effective length setting unit C4 and the detection signal from the torque sensor S to calculate the tightening torque.

As a specific method of inputting the effective length, for example, it may be possible to input while increasing or decreasing the effective length by operating the plus button or the minus button of the operation buttons B, or to input a plurality of preset values. A length selected from effective lengths may be input. When a plurality of effective lengths are set in advance, effective length data indicating these effective lengths is stored in a tool-side effective length data storage section (not shown) set in a predetermined area of the memory. can be mentioned.

In the above-described configuration, the tool-side display control section C1 of this embodiment compares the target torque and the tightening torque, and changes the display mode of the display D1, such as the background color, according to the difference between these values. is configured to

As a result, the user can proceed with the tightening work while recognizing whether or not the tightening torque is within the upper limit and the lower limit.

Next, the control device 20 will be explained.
The control device 20 is a portable or stationary terminal device such as a tablet, a smart phone, a notebook computer, etc., which includes a display D2, a CPU, a memory, and the like. As shown, it exhibits at least the functions of the device-side display control section 21 and the device-side target torque setting section 22 .

The device-side display control unit 21 controls the display contents of the display D2, and includes a setting screen for setting the target torque (see FIG. 4) and a measurement screen for displaying the tightening torque during tightening work (see FIG. 5). ) are configured to switch between

On the setting screen, as shown in FIG. 4, the device-side display control unit 21 selectably displays options S1 indicating a plurality of target torques, and also displays the target torque of the selected option and the target torque. Display the corresponding upper and lower limits.

Note that the upper limit value and the lower limit value may be input via input means such as a touch panel, a mouse, or a keyboard separately from the target torque. A predetermined ratio may be automatically set as the upper limit and the lower limit.

On the other hand, on the measurement screen, as shown in FIG. 5, the device-side display control unit 21 displays the tightening torque during the tightening work in real time (the tightening torque in FIG. 5 is 0.0). This is because the measurement screen in FIG. 5 is the one before the tightening operation).

The tightening torque is displayed using the entire display D2 as shown in the upper part of FIG. 5, and by using a part of the display D2 as shown in the lower part of FIG. It is configured to be switchable between the slim display and the slim display.
Note that here, it is possible to switch between the full display and the slim display via the switching symbol S2 displayed on the screen.

Further, the device-side display control section 21 of the present embodiment is configured to selectably display a plurality of target torques stored in advance on the measurement screen, as shown on the lower right side of FIG. In the slim display, multiple target torques are displayed in a selectable manner along with the tightening torque. Note that these selectably displayed target torques can be hidden as shown in the lower left part of FIG.

In addition, as shown in FIG. 2, the control device 20 of this embodiment further has a function as a device-side effective length setting section 23 that accepts and sets the effective length input by the user.

As a specific method of inputting the effective length, one selected from a plurality of preset effective lengths may be input, or an arbitrary value may be input as the effective length. Also good. When a plurality of effective lengths are set in advance, effective length data indicating these effective lengths is stored in a device-side effective length data storage section (not shown) set in a predetermined area of the memory. can be mentioned. In addition, when the torque wrench 10 is connected to the control device 20, the effective length data stored in the device side effective length data storage unit (not shown) is transmitted to the torque wrench 10, and the tool side It may be configured to be stored in an effective length data storage unit (not shown).

The effective length set by the device-side effective length setting section 23 is transmitted to the above-described tightening torque calculation section C3. Then, the tightening torque calculator C3 uses this effective length and the detection signal from the torque sensor S to calculate the tightening torque.

Here, the tool system 100 of this embodiment is configured so that the target torque can be set on both the tool side and the control device side, as described above.

In such a configuration, there is a risk that the user of the torque wrench may set an inappropriate target torque due to, for example, an erroneous operation. As a result, the manager who operates the control device 20 may find it difficult to manage the work of the user who handles the torque wrench 10, and the problem that the traceability of the work cannot be sufficiently ensured may arise. Note that the above-described problem also applies to the effective length.

Therefore, as shown in FIG. 2, the control device 20 of the present embodiment has a function lock unit 24 that switches from a settable state in which the target torque can be set via the torque wrench 10 to a settable state in which the setting is disabled. further has

More specifically, the device-side display control unit 21 of the present embodiment displays a lock setting screen for switching the torque wrench 10 to either the selectable state or the unselectable state, as shown in FIG. .

In the lock setting screen, the control device 20 of the present embodiment outputs a switching signal for setting the torque wrench 10 to the settable state or the settable state via the switching signal input unit P1 such as a touch panel, a mouse, or a keyboard. configured for input.

Then, when a switching signal is input via the switching signal input section P1 to switch the torque wrench 10 from the settable state to the settable state, the function lock section 24 switches to the target torque set by the tool side target torque setting section C2. setting is restricted, making it impossible for the user to set the target torque. In this state, the device-side display control section 21 displays a symbol P2 on the display D2 indicating that the selection is disabled.

In addition, the function lock section 24 of this embodiment also restricts the setting of the effective length by the tool-side effective length setting section C4 in this setting disabled state, making it impossible for the user to set the effective length.

On the other hand, when a switching signal is input via the switching signal input section P1 to switch the torque wrench 10 from the setting disabled state to the settable state, the function lock section 24 causes the tool side target torque setting section C2 to set the target torque. , and the user can select and change the target torque. In this state, the device-side display control section 21 hides the symbols described above.

In addition, in this settable state, the function lock section 24 of the present embodiment also allows setting of the effective length by the tool-side effective length setting section C4, so that the user can set the effective length.

<Action and effect of the tool system>
According to the tool system 100 configured in this manner, the target torque can be set in both the torque wrench 10 and the control device 20, thereby ensuring usability, and at the same time, the function of the control device 20 can be locked as necessary. By switching the torque wrench 10 from the settable state to the settable state via the unit 24, it is possible to prohibit the user from setting or changing the target torque, thereby improving manageability and traceability.

In addition, when the torque wrench 10 is in the setting disabled state, the device-side display control unit 21 displays the symbol P2 indicating that state, so that the user can grasp at a glance that the torque wrench 10 is in the setting disabled state. can.

Furthermore, since both the torque wrench 10 and the control device 20 include a tool-side effective length setting section C4 and a device-side effective length setting section 23 for setting the effective length of the head H of the torque wrench 10, the effective length of the head is considered. Then, the tightening torque can be calculated accurately.

In addition, the user can be prohibited from setting or changing the effective length by the function lock unit 24 as needed, so that manageability and traceability can be ensured.

In addition, since the device-side display control unit 21 selectably displays a plurality of target torques on the measurement screen, the user can change the target torque without returning from the measurement screen to the setting screen, which improves work efficiency. can be further improved.

<Other embodiments>
In addition, the present invention is not limited to the above embodiments.

For example, although the torque wrench 10 in which the head H can be replaced has been described in the above embodiment, a torque wrench in which the head H cannot be replaced may be used.
In this case, the functions of the tool-side effective length setting section C4 and the device-side effective length setting section 23 are unnecessary.

Further, in the above embodiment, the torque wrench 10 is provided with the function as the tightening torque calculation section C3, but the control device 20 may be provided with the tightening torque calculation section C3.

Furthermore, the tightening tool is not limited to the torque wrench, and various tightening tools such as a screwdriver may be used as long as the target torque is set.

In addition, the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications are possible without departing from the spirit of the present invention.

100 Tool system 10 Torque wrench S Torque sensor D Display B Operation button H Head C Controller C1 Tool-side display controller C2 ... tool-side target torque setting section C3 ... tightening torque calculation section C4 ... tool-side effective length setting section 20 ... control device 21 ... device-side display control section 22 ... device-side target Torque setting section 23 --- device side effective length setting section 24 --- function lock section

Claims (6)

In a tool system comprising a tightening tool and a control device capable of communicating with the tightening tool,
Both the tightening tool and the control device have a target torque setting unit that sets a target torque during tightening work,
The tool system, wherein the control device further includes a function lock unit that switches the tightening tool from a settable state in which the target torque can be set to a settable state in which the target torque cannot be set. The control device is
2. The tool system according to claim 1, further comprising a display control unit that displays a symbol indicating that the fastening tool is in the setting disabled state. 3. The tool system according to claim 2, wherein said display control unit hides said symbol when said tightening tool is in said settable state. Both the tightening tool and the control device have an effective length setting unit for setting the effective length of the head of the tightening tool,
4. The tool system according to any one of claims 1 to 3, wherein said function lock section also disables setting of said effective length by said tightening tool in said setting disabled state. 2. A display control unit for switching between a setting screen for setting a target torque and a measurement screen for displaying the tightening torque during tightening work, and for selectively displaying a plurality of target torques on the measurement screen. 5. A tool system according to any one of claims 1 to 4. A tool system comprising a tightening tool and a control device capable of communicating with the tightening tool, wherein both the tightening tool and the control device comprise a target torque setting unit for setting a target torque during tightening work In the program used
to the control device,
A program for a tool system that functions as a function lock unit that switches the tightening tool from a settable state in which the target torque can be set to a settable state in which the target torque cannot be set.

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