Machine tool system
The machine tool system addresses the limitations of current energy-saving controls by implementing a centralized energy-saving control mechanism for peripheral equipment shared among multiple machine tools, optimizing energy usage even in continuous production environments.
Patent Information
- Application Number
- PCT/JP2023/046222
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2025-06-26
AI Technical Summary
Current energy-saving controls for machine tool peripheral equipment are limited to single-machine tool setups, and are ineffective in production sites with multiple machine tools operating 24/7, as the opportunity for substantial shutdown of pumps and compressors is limited.
A machine tool system that includes one or more machine tools, peripheral equipment, a valve for controlling communication between the machine tools and peripheral equipment, a valve control unit, and an adjustment unit that generates signals to adjust the output of peripheral equipment based on machine tool operations, enabling centralized energy-saving control.
The system allows for energy-saving control of peripheral equipment shared by multiple machine tools, optimizing energy usage even in 24/7 production environments by adjusting the output of peripheral devices based on actual machine tool operations.
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Figure JP2023046222_26062025_PF_FP_ABST
Abstract
Description
Machine Tool Systems
[0001] The present disclosure relates to machine tool systems.
[0002] In recent years, in response to the global trend toward energy conservation, various energy-saving technologies have been proposed in the industry of industrial equipment such as machine tools. Energy-saving technologies for such industrial equipment can be broadly divided into technologies that reduce the power consumption of the machine tool itself and technologies that reduce the power consumption of peripheral equipment associated with the machine tool, such as coolant pumps and air compressors.
[0003] As a technique for reducing the power consumption of peripheral devices associated with a machine tool, for example, there is a technique described in Patent Document 1.
[0004] JP 2017-91242 A
[0005] Current energy-saving control for peripheral equipment of machine tools is based on the assumption that one peripheral device is installed for one machine tool. However, in production facilities where multiple machine tools are in operation, systems that centrally manage air, coolant, etc. are often installed for each process or building, and these systems are distributed to each machine tool. Therefore, the environments in which the above-mentioned energy-saving control can be utilized are limited.
[0006] Energy savings can also be achieved by controlling the on / off of such centralized management systems. However, in recent years, many production sites have been automated to operate 24 hours a day, and the period during which pumps, compressors, etc. can be effectively turned off is limited, so energy savings cannot be expected at such production sites.
[0007] Therefore, there is a demand for a machine tool system that can apply energy-saving control to peripheral devices shared by multiple machine tools.
[0008] One aspect of the present disclosure is a machine tool system comprising one or more machine tools, peripheral equipment connected to the machine tools, a valve that opens or closes communication between the machine tool and the peripheral equipment, a valve control unit that controls the valve, and an adjustment unit that generates an adjustment signal for adjusting the output of the peripheral equipment based on an output signal output from the machine tool and outputs the adjustment signal to the peripheral equipment.
[0009] Fig. 1 is a diagram showing an overview of a machine tool system according to the present embodiment; Fig. 2 is a functional block diagram of a machine tool system according to the present embodiment; Fig. 3 is a diagram showing an overview of a machine tool system according to another embodiment; Fig. 4 is a functional block diagram of a machine tool system according to another embodiment; Fig. 5 is a diagram showing an overview of a machine tool system according to yet another embodiment; Fig. 6 is a functional block diagram of a machine tool system according to yet another embodiment.
[0010] An example of an embodiment of the present disclosure will be described below. Fig. 1 is a diagram showing an overview of a machine tool system 1 according to this embodiment. The machine tool system 1 includes a machine tool 2 and a peripheral device 3.
[0011] The machine tool 2 is a machine device that processes a workpiece using a tool. The machine tool 2 is in communication with peripheral equipment 3 via a line 5.
[0012] The peripheral equipment 3 is equipment that communicates with the machine tool 2 via a line 5. The peripheral equipment 3 may be, for example, a mist collector, a coolant pump, an air compressor, etc. The line 5 may be, for example, an exhaust line, an intake line, a coolant line, etc.
[0013] A valve 4 is provided on the machine tool 2 side of the line 5 to open or block the flow of media such as exhaust air, intake air, coolant, etc. The valve 4 opens or blocks communication between the machine tool 2 and peripheral equipment 3.
[0014] 2 is a functional block diagram of the machine tool system according to this embodiment. As shown in FIG. 2, the machine tool 2 includes a determination unit 21, a valve control unit 22, a signal generation unit 23, and a signal unit 24.
[0015] The determination unit 21 determines whether a predetermined operation is required for the machine tool 2 in the peripheral device 3. Specifically, the determination unit 21 determines whether the predetermined operation is required based on the machining operation of the machine tool 2.
[0016] For example, if the peripheral device 3 is a mist collector, the determination unit 21 determines whether or not to collect the mist generated by the machining of the machine tool 2, depending on the machining operation (e.g., execution of cutting) of the machine tool 2. More specifically, when the determination unit 21 identifies from the machining program that the machining operation of the machine tool 2 is to be executed, it determines to collect the mist, and when it identifies that the machining operation of the machine tool 2 is not to be executed, it determines not to collect the mist.
[0017] Furthermore, when the peripheral device 3 is a coolant pump, the determination unit 21 determines whether or not to supply coolant to the machine tool 2 in accordance with the machining operation of the machine tool 2. More specifically, when the determination unit 21 identifies from the machining program that the machining operation of the machine tool 2 is to be executed, it determines to supply coolant, and when it identifies that the machining operation of the machine tool 2 is not to be executed, it determines not to supply coolant.
[0018] Furthermore, when the peripheral device 3 is an air compressor, the determination unit 21 determines whether or not to supply compressed air to the machine tool 2 in accordance with the machining operation of the machine tool 2. More specifically, when the determination unit 21 identifies from the machining program that the machining operation of the machine tool 2 is to be executed, it determines to supply compressed air, and when it identifies that the machining operation of the machine tool 2 is not to be executed, it determines not to supply compressed air.
[0019] In addition, the operations judged by the judgment unit 21 are not limited to machining operations of the machine tool 2, but may also be other operations performed by the machine tool 2, such as power-on operations of the machine tool 2, return-to-origin operations, tool replacement operations, etc.
[0020] Furthermore, the determination unit 21 may determine whether a predetermined operation is necessary based on the type of machining operation performed by the machine tool 2. For example, the determination unit 21 may determine that mist should be collected in the case of wet machining performed by the machine tool 2, and may determine that mist should not be collected in the case of dry machining.
[0021] The valve control unit 22 controls the valve 4 in accordance with the determination result by the determination unit 21. Specifically, when the peripheral device 3 is a mist collector, the valve control unit 22 opens the valve 4 when the determination unit 21 determines that the mist should be collected, and closes the valve 4 when the determination unit 21 determines that the mist should not be collected. The valve control unit 22 opens and closes the valve 4 in the same manner when the peripheral device 3 is a coolant pump or an air compressor.
[0022] The signal generating unit 23 generates a request signal requesting a predetermined operation from the machine tool 2 to the peripheral device 3 in accordance with the determination result by the determining unit 21, and outputs the request signal to the signal unit 24. The request signal includes a signal for requesting a predetermined operation by the peripheral device 3. Here, the predetermined operation is an operation for the machine tool 2 by the peripheral device 3, such as a mist collecting operation by a mist collector, a coolant supply operation by a coolant pump, or a compressed air supply operation by an air compressor.
[0023] Specifically, when the peripheral device 3 is a mist collector, if the determination unit 21 determines that the mist should be collected, the signal generation unit 23 generates a request signal requesting that the peripheral device 3 (mist collector) operate to collect the mist, and outputs the request signal to the signal unit 24. On the other hand, when the determination unit 21 determines that the mist should not be collected, the signal generation unit 23 generates a request signal requesting that the peripheral device 3 (mist collector) not operate to collect the mist, and outputs the request signal to the signal unit 24. The signal generation unit 23 similarly generates a request signal and outputs the request signal to the signal unit 24 when the peripheral device 3 is a coolant pump or an air compressor.
[0024] The signal unit 24 generates an adjustment signal for adjusting the output of the peripheral device 3 based on the output signal output from the machine tool 2, and outputs the adjustment signal to the peripheral device 3. Here, the adjustment signal is generated based on a request signal as an output signal, and includes a signal for adjusting the output of the peripheral device 3.
[0025] Specifically, the signal unit 24 is provided in one of the one or more machine tools 2, and outputs an adjustment signal to the peripheral device 3 based on a request signal from the other machine tools. For example, assume that the peripheral device 3 is a mist collector, and request signals from two machine tools 2 request that a valve 4 be opened, and a request signal from one machine tool 2 requests that the valve 4 be closed. In this case, the signal unit 24 generates an adjustment signal that operates using power capable of sucking in mist from the two machine tools 2, and outputs the adjustment signal to the peripheral device 3.
[0026] Also, consider a case where a request signal from one machine tool 2 requests that the valve 4 be opened, and request signals from two machine tools 2 request that the valve 4 be closed. In this case, the signal unit 24 generates an adjustment signal that operates using power capable of sucking in the mist from one machine tool 2, and outputs the adjustment signal to the peripheral device 3. The signal unit 24 similarly generates an adjustment signal and outputs the adjustment signal to the peripheral device 3 when the peripheral device 3 is a coolant pump and an air compressor.
[0027] In Figures 1 and 2, the valve control unit 22 and the signal unit 24 are provided in one of the multiple machine tools 2, but this is not limited to this. For example, the valve control unit 22 and the signal unit 24 may be provided in the peripheral device 3, or may be provided in a control device other than the machine tool 2 and the peripheral device 3 (for example, a server on a network that can communicate with the machine tool 2 and the peripheral device 3).
[0028] When the peripheral device 3 receives the adjustment signal, it adjusts the output of the peripheral device 3 in accordance with the adjustment signal. For example, if the peripheral device 3 is a mist collector, it is assumed that the peripheral device 3 receives an adjustment signal to operate with power capable of sucking in mist from two machine tools 2. In this case, the peripheral device 3 operates with power capable of sucking in mist from the two machine tools 2, and collects the mist from the two machine tools 2.
[0029] Also, assume that the peripheral device 3 receives an adjustment signal to operate using power capable of sucking in mist from one machine tool 2. In this case, the peripheral device 3 operates using power capable of sucking in mist from one machine tool 2, and collects the mist from one machine tool 2.
[0030] Thus, according to this embodiment, the machine tool system 1 comprises one or more machine tools 2, peripheral equipment 3 connected to the machine tool 2 via line 5, a valve 4 that opens or closes communication between the machine tool 2 and the peripheral equipment 3, a valve control unit 22 that controls the valve 4, and a signal unit 24 that generates an adjustment signal for adjusting the output of the peripheral equipment 3 based on an output signal output from the machine tool 2 and outputs the adjustment signal to the peripheral equipment 3.
[0031] By having such a configuration, the machine tool system 1 can apply energy saving control to the peripheral devices 3 shared by one or more machine tools 2.
[0032] Furthermore, the one or more machine tools 2 are equipped with a determination unit 21 that determines whether a predetermined operation for the machine tool 2 in the peripheral device 3 is necessary, and a signal generation unit 23 that generates a request signal from the machine tool 2 to the peripheral device 3, requesting the predetermined operation, in accordance with the determination result by the determination unit 21. The valve control unit 22 controls the valve 4 in accordance with the determination result by the determination unit 21, and the signal unit 24 is provided in one of the one or more machine tools 2, and outputs to the peripheral device 3 an adjustment signal for adjusting the output of the predetermined operation in the peripheral device 3, based on the request signal as an output signal from the other machine tool.
[0033] As a result, when the peripheral equipment 3 is shared by one or more machine tools 2, the machine tool system 1 outputs a request signal from each machine tool 2, and the operation of the peripheral equipment can be adjusted in accordance with the request signal, thereby applying energy-saving control to the peripheral equipment 3.
[0034] In the above example, it is assumed that the request signal is a signal to open or close valve 4, but the machine tool system 1 may, for example, not only send a request signal to peripheral device 3 that is either "request" or "not required," but may also include a request for step-wise or analog control, such as "open valve 4 moderately" or "open valve 4 at n% of maximum."
[0035] Furthermore, the machine tool system 1 may open or close the valve 4 according to a stepwise or analog control request of a request signal, instead of just opening or closing the valve 4 in two ways.
[0036] That is, the valve control unit 22 controls the valve 4 in a stepwise or analog manner, such as to "open moderately" or "n% of maximum opening," according to the determination result by the determination unit 21. Similarly, the signal generation unit 23 generates a request signal including a request for stepwise or analog control of the peripheral device 3 (for example, a request such as "open moderately" or "n% of maximum opening") according to the determination result by the determination unit 21, and outputs the request signal to the signal unit 24.
[0037] In addition, the signal unit 24 is provided in one of the one or more machine tools 2, and generates an adjustment signal including a request for stepwise or analog control of the peripheral device 3 based on a request signal from the other machine tools, and outputs the adjustment signal to the peripheral device 3.
[0038] Upon receiving the adjustment signal, the peripheral device 3 adjusts the output of the peripheral device 3 in a stepwise or analog manner in accordance with the adjustment signal. As a result, the peripheral device 3 operates with power that can be adjusted in a stepwise or analog manner, such as "medium opening" or "n% of maximum opening," and collects mist from one or more machine tools 2.
[0039] As described above, according to this embodiment, the machine tool 2 includes a determination unit 21 that determines whether a predetermined operation for the machine tool 2 in the peripheral device 3 is necessary, and a signal generation unit 23 that generates a request signal including a request for stepwise or analog control of the peripheral device 3 according to the determination result by the determination unit 21. The valve control unit 22 controls the valve 4 stepwise or analogically according to the determination result by the determination unit 21, and the signal unit 24 outputs an adjustment signal to the peripheral device 3 for adjusting the output of the predetermined operation in the peripheral device 3 based on the request signal as an output signal from another machine tool.
[0040] With this configuration, the machine tool system 1 can apply energy-saving control to the peripheral equipment 3 with higher precision by controlling the peripheral equipment 3 and the valves 4 in a stepwise or analog manner.
[0041] Fig. 3 is a diagram showing an overview of a machine tool system according to another embodiment, and Fig. 4 is a functional block diagram of a machine tool system according to another embodiment. This embodiment shows an example in which one or more machine tools 2 do not have the function of controlling valves 4, as shown in Figs. 3 and 4.
[0042] That is, the valve control unit 22 is provided in at least one machine tool 2 and is configured to control the valves 4 of that machine tool and other machine tools. In the machine tool 2 having the valve control unit 22, the valve control unit 22 controls the valve 4 in accordance with the determination result by the determination unit 21 and the signal output from the signal unit 24.
[0043] For example, as shown in Figures 3 and 4, the valve control unit 22 opens the valve 4 when the judgment unit 21 of the device itself determines that the mist should be collected, and closes the valve 4 when the judgment unit 21 determines that the mist should not be collected.
[0044] Furthermore, the valve control unit 22 controls the valve 4 of the other machine tool 2 in response to a request signal from the other machine tool 2. For example, if the peripheral device 3 is a mist collector, the valve control unit 22 opens the valve 4 when the request signal from the signal generation unit 23 of the other machine tool 2 requests an operation to collect mist. On the other hand, the valve control unit 22 closes the valve 4 when the request signal from the signal generation unit 23 of the other machine tool 2 does not request an operation to collect mist.
[0045] Furthermore, a machine tool 2 that does not have a valve control unit 22 outputs a request signal from a signal generating unit 23 and controls a valve 4 by a valve control unit 22 of another machine tool 2 .
[0046] As described above, according to this embodiment, the valve 4 is provided in each machine tool 2, and the valve control unit 22 is provided in at least one machine tool 2 to control each valve 4 of that machine tool and other machine tools. With this configuration, even if some of the one or more machine tools 2 do not have the function of controlling the valve 4, energy-saving control can be applied to the peripheral devices 3.
[0047] Fig. 5 is a diagram showing an overview of a machine tool system according to yet another embodiment, and Fig. 6 is a functional block diagram of a machine tool system according to yet another embodiment. As shown in Figs. 5 and 6, this embodiment shows an example in which a status signal of the machine tool 2 is received and a predetermined operation required for each machine tool 2 is estimated.
[0048] That is, in this embodiment, the signal generating unit 23 generates a status signal indicating the operating status of each machine tool 2 instead of a request signal as an output signal, and outputs the status signal to the estimating unit 25 .
[0049] The estimation unit 25 estimates the control of each valve 4 and the output of a predetermined operation for the machine tool 2 in the peripheral device 3, based on the state signal as an output signal output from each machine tool 2. Then, the estimation unit 25 outputs an adjustment signal to the peripheral device 3 to adjust the output of the predetermined operation in the peripheral device 3, based on the estimated estimation result. The estimation unit 25 also outputs the estimated estimation result to the valve control unit 22.
[0050] Specifically, when one machine tool 2 is in machining, signal generation unit 23 generates a status signal indicating that it is “in machining” and outputs the status signal to estimation unit 25. Furthermore, when one machine tool 2 is on standby, signal generation unit 23 generates a status signal indicating that it is “on standby” and outputs the status signal to estimation unit 25.
[0051] For example, if the peripheral device 3 is a mist collector, and the status signal indicates "machining", the estimation unit 25 estimates that the machine tool 2 that output the status signal will request an operation to collect the mist. Also, if the status signal indicates "standby", the estimation unit 25 estimates that the machine tool 2 that output the status signal will not request an operation to collect the mist.
[0052] Then, if the estimation unit 25 estimates that two machine tools 2 request the operation of collecting mist and one machine tool 2 does not request the operation of collecting mist, it generates an adjustment signal that operates using power capable of sucking in the mist from the two machine tools 2 and outputs the adjustment signal to the peripheral device 3.
[0053] In addition, if the estimation unit 25 estimates that one machine tool 2 requests an operation to collect mist and two machine tools 2 do not request an operation to collect mist, it generates an adjustment signal that operates using power capable of sucking in the mist from one machine tool 2 and outputs the adjustment signal to the peripheral device 3.
[0054] Furthermore, the estimation unit 25 outputs the estimation result to the valve control unit 22. For example, the estimation unit 25 outputs the estimation result to the valve control unit 22 that two machine tools 2 request an operation to collect the mist, and one machine tool 2 does not request an operation to collect the mist.
[0055] The valve control unit 22 controls each valve 4 in accordance with the estimation result by the estimation unit 25. For example, the valve control unit 22 opens each valve 4 in two machine tools 2 that are estimated to require the operation of collecting mist. On the other hand, the valve control unit 22 closes each valve 4 in one machine tool 2 that is estimated not to require the operation of collecting mist.
[0056] When the peripheral device 3 receives the adjustment signal from the estimation unit 25, it adjusts the output of the peripheral device 3 in accordance with the adjustment signal. For example, if the peripheral device 3 is a mist collector, it is assumed that the peripheral device 3 receives an adjustment signal to operate with power capable of sucking in mist from two machine tools 2. In this case, the peripheral device 3 operates with power capable of sucking in mist from the two machine tools 2, and collects the mist from the two machine tools 2.
[0057] Also, assume that the peripheral device 3 receives an adjustment signal to operate using power capable of sucking in mist from one machine tool 2. In this case, the peripheral device 3 operates using power capable of sucking in mist from one machine tool 2, and collects the mist from one machine tool 2.
[0058] As described above, according to the present embodiment, the machine tool system 1 further includes a signal generating unit 23 that generates a status signal indicative of the operating status of the machine tool 2, and an estimating unit 25 that controls the valve 4 and estimates the output of a predetermined operation for the machine tool 2 in the peripheral device 3, based on the status signal as an output signal output from the machine tool 2. The valve control unit 22 controls the valve 4 in accordance with the estimation result by the estimating unit 25, and the estimating unit 25 outputs an adjustment signal to the peripheral device 3 for adjusting the output of the predetermined operation in the peripheral device 3, based on the estimation result of the output of the predetermined operation.
[0059] By having such a configuration, the machine tool system 1 can apply energy saving control to the peripheral device 3 even if the machine tool 2 does not have the function of outputting a request signal.
[0060] The above has described an embodiment of the present invention, but the above-described machine tool system 1 can be realized by hardware, software, or a combination of these. Furthermore, the control method performed by the above-described machine tool system 1 can also be realized by hardware, software, or a combination of these. Here, "realized by software" means that it is realized by a computer reading and executing a program.
[0061] The program can be stored and supplied to a computer using various types of non-transitory computer-readable media. Non-transitory computer-readable media include various types of tangible storage media. Examples of non-transitory computer-readable media include magnetic recording media (e.g., hard disk drives), magneto-optical recording media (e.g., magneto-optical disks), CD-ROMs (Read Only Memory), CD-Rs, CD-R / Ws, and semiconductor memories (e.g., mask ROMs, PROMs (Programmable ROMs), EPROMs (Erasable PROMs), flash ROMs, and RAMs (Random Access Memory)).
[0062] Although the present disclosure has been described in detail, the present disclosure is not limited to the individual embodiments described above. Various additions, substitutions, modifications, partial deletions, etc. are possible in these embodiments without departing from the gist of the present disclosure or the spirit of the present disclosure derived from the content of the claims and their equivalents. These embodiments can also be implemented in combination. For example, in the above-described embodiments, the order of each operation and the order of each process are shown as examples and are not limited to these. The same applies when numerical values or mathematical expressions are used in the description of the above-described embodiments.
[0063] The following supplementary notes are further disclosed regarding the above-described embodiments and modified examples. (Supplementary Note 1) A machine tool system (1) comprising: one or more machine tools (2); peripheral equipment (3) connected to the machine tool; a valve (4) that opens or closes communication between the machine tool and the peripheral equipment; a valve control unit (22) that controls the valve; and an adjustment unit (24) that generates an adjustment signal for adjusting an output of the peripheral equipment based on an output signal output from the machine tool and outputs the adjustment signal to the peripheral equipment. (Supplementary Note 2) The machine tool comprises: a determination unit (21) that determines whether a predetermined operation for the machine tool in the peripheral equipment is necessary; and a signal generation unit (23) that generates a request signal from the machine tool to the peripheral equipment in accordance with the determination result by the determination unit, requesting the predetermined operation, wherein the valve control unit controls the valve in accordance with the determination result, and the adjustment unit outputs the adjustment signal to the peripheral equipment in accordance with the request signal as the output signal. (Supplementary Note 3) The machine tool system (1) according to Supplementary Note 1, wherein the machine tool comprises: a determination unit (21) that determines whether a predetermined operation for the machine tool in the peripheral equipment is necessary; and a signal generation unit (23) that generates a request signal including a request for stepwise or analog control of the peripheral equipment according to a determination result by the determination unit, wherein the valve control unit controls the valve stepwise or analogically according to the determination result, and the adjustment unit outputs the adjustment signal to the peripheral equipment for adjusting an output of the predetermined operation in the peripheral equipment based on the request signal as the output signal from another machine tool. (Supplementary Note 4) The machine tool system (1) according to Supplementary Note 2 or 3, wherein the valve is provided in each machine tool, and the valve control unit is provided in at least one of the machine tools and controls the valve of that machine tool and the other machine tools.(Supplementary Note 5) The machine tool system (1) according to Supplementary Note 1 further comprises a signal generating unit (21) that generates a status signal that indicates the operating status of the machine tool, wherein the adjusting unit (25) estimates control of the valve and an output of a predetermined operation for the machine tool in the peripheral equipment based on the status signal as the output signal, wherein the valve control unit controls the valve in accordance with the estimation result by the adjusting unit, and wherein the adjusting unit (25) outputs the adjustment signal to the peripheral equipment for adjusting the output of the predetermined operation in the peripheral equipment based on the estimation result of the output of the predetermined operation.
[0064] REFERENCE SIGNS LIST 1 Machine tool system 2 Machine tool 3 Peripheral equipment 4 Valve 5 Line 21 Determination unit 22 Valve control unit 23 Signal generation unit 24 Signal unit 25 Estimation unit
Claims
1. A machine tool system comprising: a machine tool of 1 or more; peripheral equipment communicated with the machine tool; a valve for opening or blocking communication between the machine tool and the peripheral equipment; a valve control unit for controlling the valve; and an adjustment unit for generating an adjustment signal for adjusting the output of the peripheral equipment based on an output signal output from the machine tool and outputting the adjustment signal to the peripheral equipment.
2. The machine tool of claim 1, further comprising: a determination unit for determining whether a predetermined operation for the machine tool in the peripheral equipment is necessary; and a signal generation unit for generating a request signal for requesting the predetermined operation from the machine tool to the peripheral equipment according to a determination result by the determination unit, wherein the valve control unit controls the valve according to the determination result, and the adjustment unit outputs, to the peripheral equipment, the adjustment signal for adjusting the output of the predetermined operation in the peripheral equipment based on the request signal as the output signal.
3. The machine tool of claim 1, further comprising: a determination unit for determining whether a predetermined operation for the machine tool in the peripheral equipment is necessary; and a signal generation unit for generating a request signal including a request for stepwise or analog control of the peripheral equipment according to a determination result by the determination unit, wherein the valve control unit controls the valve stepwise or analogly according to the determination result, and the adjustment unit outputs, to the peripheral equipment, the adjustment signal for adjusting the output of the predetermined operation in the peripheral equipment based on the request signal as the output signal from another machine tool.
4. The valve is provided in each machine tool, and the valve control unit is provided in at least one of the machine tools and controls the valves of the machine tool and other machine tools, according to the machine tool system of claim 2 or 3.
5. The machine tool system according to claim 1, further comprising a signal generation unit that generates a state signal indicating an operating state of the machine tool, wherein the adjustment unit estimates control of the valve and output of a predetermined operation for the machine tool in the peripheral equipment based on the state signal as the output signal, the valve control unit controls the valve according to an estimation result by the adjustment unit, and the adjustment unit outputs an adjustment signal for adjusting the output of the predetermined operation in the peripheral equipment to the peripheral equipment based on the estimation result of estimating the output of the predetermined operation.
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