WO2020049370A1 - プレス装置、端末装置、ボールねじ推定寿命算出方法およびプログラム - Google Patents

プレス装置、端末装置、ボールねじ推定寿命算出方法およびプログラム Download PDF

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Publication number
WO2020049370A1
WO2020049370A1 PCT/IB2019/052943 IB2019052943W WO2020049370A1 WO 2020049370 A1 WO2020049370 A1 WO 2020049370A1 IB 2019052943 W IB2019052943 W IB 2019052943W WO 2020049370 A1 WO2020049370 A1 WO 2020049370A1
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Prior art keywords
ball screw
load value
load
average
calculation unit
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PCT/IB2019/052943
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English (en)
French (fr)
Japanese (ja)
Inventor
岩崎安希子
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蛇の目ミシン工業株式会社
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Application filed by 蛇の目ミシン工業株式会社 filed Critical 蛇の目ミシン工業株式会社
Priority to KR1020217001101A priority Critical patent/KR102591896B1/ko
Priority to CN201980047393.2A priority patent/CN112639429B/zh
Priority to DE112019004468.0T priority patent/DE112019004468T5/de
Publication of WO2020049370A1 publication Critical patent/WO2020049370A1/ja

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/02—Gearings; Transmission mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/18—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/28—Arrangements for preventing distortion of, or damage to, presses or parts thereof
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing

Definitions

  • the present invention relates to a press device, a terminal device, a ball screw estimated life calculation method, and a program.
  • a press device such as an electric press that applies a load by moving a ram up and down with respect to a work is known.
  • the rotation of the motor is converted into linear motion to operate the ram up and down.
  • a ball screw is an important mechanical component for realizing such up and down operation of the ram.
  • the ball screw is subjected to an impact by the load operation, so that the ball screw is deteriorated. In order to operate with an appropriate load, it is required to estimate the life as accurately as possible.
  • Patent Document 1 describes a means for storing in advance the relationship between the axial load of the ball screw and the motor current value, the basic dynamic load rating of the ball screw, and the sampling interval and time. Means for recording the amount of use of the ball screw, a coefficient of variation is measured at each sampling interval, and the rated fatigue life value calculated based on the measured value is rewritable. A ball screw life monitoring device that displays the remaining life of each ball screw is disclosed (for example, see Patent Document 1).
  • the average axial load F m applied to the ball screw, the average rotational speed N m of the ball screw, on the basis of the load factor f w is determined by the kinetic state, the estimated lifetime of the ball screw Is disclosed.
  • load factor f w is greater the larger the operation of the impact on the ball screw, the more the value is large, the estimated life time is shortened.
  • Patent Document 1 the vibration and shock "fine”, “small”, “medium”, and divided into four “large”, only load coefficient f w are defined, above the load It cannot be said that the magnitude of the influence of the coefficient fw on the estimated lifetime is sufficiently considered.
  • the estimated life time of the ball screw is obtained from the magnitude of the fluctuation of the motor current, that is, the fluctuation of the torque, but the fluctuation of the torque is more accurate than the fluctuation value of the load cell load value.
  • the shock magnitude is clearly related to the life of the ball screw, and the verification until the ball screw actually breaks is performed in various environments and operating patterns. Since it is difficult to perform until the magnitude of the load coefficient can be clearly defined, there is a problem that the method for estimating the life time of the ball screw cannot be said to be a simple and highly accurate method.
  • the present invention has been made in view of the above-described problems, and provides a press device, a terminal device, a ball screw estimated life calculation method, and a program that easily and accurately estimate the life time of a ball screw. With the goal.
  • One or more embodiments of the present invention provide a load value detecting unit that detects an axial load value applied to a ball screw, and an average value based on the load value detected by the load value detecting unit.
  • An average axial load value calculating unit that calculates an axial load value
  • an average rotational speed calculating unit that calculates an average rotational speed of the ball screw, a load coefficient of the ball screw, and the average axial load value calculating unit.
  • a press device Based on the calculated average axial load value and the average rotation speed of the ball screw calculated by the average rotation speed calculation unit, a press device that calculates an estimated life according to a use mode of the ball screw.
  • a differential value calculation unit that calculates an amount of change in the axial load value detected by the load value detection unit; and a differential value calculation unit that calculates a change amount of the axial load value. Based on the amount of change in the load value, proposes a press apparatus characterized in that and a load coefficient adjusting unit that adjusts the weighting factor of the ball screw.
  • the load coefficient adjusted by the load coefficient adjustment unit is the average axial load value calculated by the average axial load value calculation unit, and the average rotation.
  • the present invention proposes a press device that is calculated based on an average rotation speed of the ball screw calculated by a speed calculation unit and an actual life period of an arbitrary ball screw.
  • the load coefficient adjusted by the load coefficient adjustment unit may include the calculated estimated life and the actual life of the ball screw from which the estimated life is calculated.
  • the axial load value applied to the ball screw is a load value applied to the ball screw measured by a load cell, or the load value measured by the load cell.
  • a press device is proposed, which is a sum of a load value applied to a ball screw and a load value generated by acceleration and deceleration of the ball screw when the ram moves up and down.
  • One or more embodiments of the present invention include a load value detection unit that detects an axial load value applied to a ball screw, and an average value based on the load value detected by the load value detection unit.
  • An average axial load value calculating unit that calculates an axial load value, an average rotational speed calculating unit that calculates an average rotational speed of the ball screw, a load coefficient of the ball screw, and the average axial load value calculating unit.
  • a calculating unit that calculates an estimated life according to a usage mode of the ball screw based on the calculated average axial load value and the average rotation speed of the ball screw calculated by the average rotation speed calculation unit.
  • a differential value calculation unit that calculates an amount of change in the axial load value detected by the load value detection unit; and the differential value calculation unit. Based on the variation of the load value calculated Oite proposes a terminal device, characterized in that it and a load coefficient adjusting unit that adjusts the weighting factor of the ball screw.
  • One or more embodiments of the present invention include a load value detection unit that detects an axial load value applied to a ball screw, and an average value based on the load value detected by the load value detection unit.
  • An average axial load value calculating unit that calculates an axial load value
  • an average rotational speed calculating unit that calculates an average rotational speed of the ball screw, a load coefficient of the ball screw, and the average axial load value calculating unit.
  • a second step of adjusting the estimated life of the ball screw is
  • One or more embodiments of the present invention provide a load value detecting unit that detects an axial load value applied to a ball screw, and an average value based on the load value detected by the load value detecting unit.
  • An average axial load value calculating unit that calculates an axial load value
  • an average rotational speed calculating unit that calculates an average rotational speed of the ball screw, a load coefficient of the ball screw, and the average axial load value calculating unit.
  • FIG. 1 is a diagram illustrating an electrical configuration of a central processing unit according to an embodiment of the present invention.
  • a press device 100 includes a press ram 1 that applies a desired pressure to a work W (a processing target) by a lifting operation, and a lifting operation (a straight line) on the ram 1. ), which are provided in the press body 3.
  • a servomotor 4 such as an AC servomotor serving as a driving source is also housed in a head frame of a casing 5 connected to the press body 3. The drive of the servo motor 4 is transmitted to the ball screw 2 via a pulley and a belt.
  • the ram 1 is formed in a cylindrical body as shown in FIG. Specifically, a hollow portion is formed along the axial direction inside a cylindrical main body 1a formed in a cylindrical shape, and the screw shaft 2a of the ball screw 2 can be inserted into the hollow portion. Has become. A nut 2b of the ball screw 2 is fixed to an end of the cylindrical main body 1a of the ram 1 in the axial direction.
  • a strain-flexing column 9 is configured to be freely attachable. Actually, the strain-flexing column 9 comes into contact with the work W and appropriately applies pressure. .
  • the strain column 9 is configured such that a strain gauge can be attached thereto, and the strain gauge can detect a pressure applied to the workpiece W. In addition, a similar load is applied to the ball screw moving the ram 1 as a reaction of the load applied to the workpiece W by the strain-flexing column 9.
  • a cylindrical guide 6 is provided so as to wrap the outer peripheral side surface of the cylindrical main body 1a.
  • the cylindrical guide 6 is fixed in the casing 5, and the ram 1 can move up and down along the cylindrical guide 6.
  • the press device 100 includes a servo motor driver 13, an encoder 14, a circuit unit 15, a drive command pulse generation unit 16, an encoder position counter 17, a control program storage unit 21, a display unit 22, an operation unit 23, a temporary storage unit 24, an initial load coefficient storage unit 25, a load value storage unit 26, a rotation speed storage unit 27, a CPU (central processing unit) 30, It is composed of
  • the control program storage unit 21 stores a control program for the CPU (central processing unit) 30 to control the operation and processing of the entire press apparatus 100.
  • a program for calculating a differential value or a calculated differential value based on time-series data of a load value stored in a load value A program for calculating an adjustment amount of the load coefficient based on an initial load coefficient stored in an initial load coefficient storage unit 25 described later, and a load value stored in a load value storage unit 26 described later.
  • a program for calculating the average axial load value a program for calculating the average rotational speed of the ball screw based on the rotational speed of the ball screw stored in the rotational speed storage unit 27 described below, the adjusted load coefficient described above, Based on the calculated average axial load value and the average rotation speed of the ball screw, the estimated life time of the ball screw is calculated. For storing programs and the like to be out.
  • the display unit 22 is, for example, a display device in which a liquid crystal panel and a touch panel are stacked and various types of information are displayed.
  • the display unit 22 may be provided in the press device 100, or may be another device or an independent device. In the present embodiment, for example, information such as the calculated estimated life time of the ball screw is displayed.
  • the operation unit 23 includes a touch panel, a tact switch, and the like for setting operation conditions and the like.
  • the temporary storage unit 24 includes, for example, a RAM or the like, and stores temporary data.
  • the basic dynamic load rating and the like are stored.
  • the initial load coefficient storage unit 25 stores an arbitrary load coefficient of the ball screw.
  • the stored initial load coefficient is used as an initial value in the processing of the load coefficient adjustment unit 32 described later.
  • the load value storage unit 26 stores time-series data in which the pressing position of the pressing unit detected by the circuit unit 15 as the load value detecting unit or the encoder 14 is associated with the load value at the pressing position.
  • the rotation speed storage unit 27 calculates, for example, a rotation speed of a ball screw having a certain relationship with the motor current from a motor current obtained from a drive command pulse generated from a drive command pulse generation unit 16 described later.
  • the rotational speed obtained by a functional block (not shown) is stored.
  • the circuit unit 15 as a detection unit for detecting a load amplifies a signal corresponding to a change in resistance of a strain gauge attached to the strain-giving column 9 and converts an analog signal into a digital signal by A / D conversion processing. (Central processing unit) 30.
  • the drive command pulse generator 16 generates a desired drive command pulse based on a command from a CPU (central processing unit) 30 and generates the drive command pulse via the CPU (central processing unit) 30.
  • the signal is output to the servo motor driver 13. Then, by driving the servo motor 4 under the control of the servo motor driver 13, the ram sliding mechanism 11 slides the ram 1 up and down.
  • the encoder 14 serving as a detecting unit for detecting the position is for detecting the rotation angle of the servomotor 4 and is used for detecting the position of the ram 1.
  • the information of the encoder 14 gives position information to the servo motor driver 13 for performing feedback control. Further, the position information of the encoder 14 can be read by a CPU (Central Processing Unit) 30 via an encoder position counter 29, whereby the movement amount of the ram 1 is detected.
  • a CPU Central Processing Unit
  • the CPU (central processing unit) 30 controls the operation of the entire press device 100 according to a control program stored in the control program storage unit 21. In the present embodiment, particularly, processing for estimating the life time of the ball screw is mainly performed.
  • the central processing unit 30 includes a differential value calculation unit 31, a load coefficient adjustment unit 32, an average axial load value calculation unit 33, and an average rotation speed calculation unit 34. , A ball screw estimated life calculation unit 35.
  • the differential value calculation unit 31 calculates the amount of change in the axial load value.
  • the variation of the load value of the axial, the change amount per unit time of the load values of the axial, the load value f m is less, as shown in Equation 1, measured by the load cell is calculated by the value of the sum of the load values f m2 caused by acceleration and deceleration of the ball screw when the load force value f m1 and the press ram according to the ball screw to move up and down.
  • the differential value d is a variation of the load value f m according to the ball screw [N / S] is a unit of time is taken as t [S], the slope of the linear regression line shown in the equation (2) below It can be obtained by the formula.
  • the load coefficient adjustment unit 32 adjusts an arbitrary load coefficient of the ball screw stored in the initial load coefficient storage unit 25 based on the amount of change in the load value calculated by the differential value calculation unit 31.
  • the arbitrary load coefficient is an average axial load value calculated by an average axial load value calculation unit 33 described later, an average rotation speed of the ball screw calculated by the average rotation speed calculation unit 34, and an arbitrary rotation coefficient.
  • the estimated life calculation unit 35 calculates the life of the ball screw.
  • the load coefficient f w conventionally, as shown in FIG. 4, the vibration or shock, "fine”, “small”, “medium”, divided into four “large”, and a width And the load coefficient fw was determined.
  • the differential value calculation unit 31 calculates the load coefficient adjustment unit 32 based on the ball screw initial load coefficient stored in the initial load coefficient storage unit 25. based on the amount of change in load value, using a load factor f w adjusted for the initial weighting factors to estimate the life expectancy of the ball screw.
  • the average axial load value calculation unit 33 calculates the average axial load value based on the load values stored in the load value storage unit 26 that stores the load values detected by the circuit unit 15 as the load value detection unit. I do.
  • the average rotation speed calculator 34 calculates the average rotation speed of the ball screw.
  • the ball screw estimated life calculation unit 35 calculates the load coefficient adjusted by the load coefficient adjustment unit 32, the average axial load value calculated by the average axial load value calculation unit 33, and the average rotation speed calculation unit 34. Based on the average rotation speed of the ball screw, an estimated life corresponding to the usage mode of the ball screw is calculated. Specifically, the basic dynamic load rating C [N], the load coefficient f w, the average axial load value F m [N], the average rotational speed of the ball screw and N m [min -1], The life rotation speed L [rev] is obtained by the equation shown in Equation 4, and the estimated life time L h [h] is obtained by the equation shown in Equation 5.
  • the average axial load value F m [N] is obtained from Equation 6 where the rotational speed of the ball screw sampled at a constant interval at the same timing as f mi and the sampling number is 1 and n mi are obtained by Equation 6, and the average rotational speed is N m [min ⁇ 1 ] is obtained by Expression 7.
  • the obtained estimated life time is displayed on the display unit 22.
  • the number 4, the number 5, f w is the basic dynamic load rating C [N] and the load factor is a constant, of which, C [N] the basic dynamic load rating is used in the press apparatus 100 It depends on the type of ball screw used, and is a numerical value published by a ball screw manufacturer in a catalog or the like.
  • the average axial load value F m [N] and the average rotation speed N m [min ⁇ 1 ] of the ball screw are variables, and the operating environment (workpiece) of the press device 100 during sampling (simultaneously with differential sampling). (The difference in the load and the speed due to the individual difference of W).
  • ⁇ Processing of press machine> performs estimation life calculation of the ball screw using a load factor f w multiple patterns simultaneously, the load coefficient f w in fact estimated life calculation nearest ball screw and timing in broken ball screw, when the The following describes a process of making the press device 100 learn the differential value of the above, and thereby highly accurately predicting the life of the ball screw that further matches the user's unique use environment. Specifically, when the ball screw is not corrupted is replaced, it is determined the user has determined that the optimal replacement time, the best lifetime learning close load factor f w. Also, if you replace the broken got a ball screw, the most life is near, and life than broken timing to learn the load coefficient f w becomes shorter. In the following, a case where the learning is performed in two processes of a first stage and a second stage will be described with reference to FIGS. 5 and 6.
  • step S101 it is confirmed that the ball screw is replaced or the press is in the initial state.
  • step S101 the average axial load F m and the average rotational speed N m and a predetermined assumed value of the ball screw (for example, press the design of the device 100, the average rotational speed of the average axial load F m and a ball screw is assumed as N m), between a load factor f w from 1.0 to 2.0, in increments of 0.1
  • the estimated life of the ball screw is calculated by the estimated life calculation unit 35 using the above equations (4) and (5) (step S102).
  • Step S103 the average axial load value F m [N] calculated by the average axial load value calculation unit 33 and the average rotation speed N m [min ⁇ 1 ] of the ball screw are sampled (Step S103), and the differential value is calculated.
  • the differential value d [N / S] calculated by the calculator 31 is sampled (step S104).
  • step S103 the estimated life of the ball screw is calculated using the sampled average axial load value F m [N], the average rotation speed N m [min ⁇ 1 ] of the ball screw, and the above equations (4) and (5).
  • the calculation unit 35 recalculates the estimated life of the ball screw (step S105).
  • step S106 determines whether the ball screw is actually broken. If it is determined in step S106 that the ball screw is broken by the user ("YES" in step S106), the calculated estimated life time is the longest among the calculated estimated life times shorter than the actual life time. learns the load factor f w corresponding to the time as a true value (step S108), in step S104, and calculates the time average value of the sampled differential value d (step S110), and ends the learning processing in the first stage .
  • step S106 determines whether or not the ball screw is not broken by the user ("NO" in step S106). If the user determines that the ball screw need not be replaced ("NO" in step S107), the process returns to step S103.
  • step S107 When the user determines in step S107 that the ball screw needs to be replaced (“YES” in step S107), the time when the determination is made is regarded as the actual life time, and the actual life time of the ball screw is determined.
  • learning closest load factor f w as a true value step S109
  • step S104 learning closest load factor f w as a true value
  • step S110 calculates the time average value of the sampled differential value d
  • the user determines whether or not the environment of the ball screw has changed significantly (for example, the work W has been changed to a completely different one, etc.) as compared with the time of the first-stage learning process (step S201). At this time, if the user determines that the environment of the ball screw has changed significantly ("YES" in step S201), the second stage is terminated and learning is restarted from the first stage.
  • step S201 when the user determines that the environment of the ball screw has not changed significantly (“NO” in step S201), the user replaces the ball screw (step S202), and at regular time intervals, the average axial direction is changed. A time average value of the load value, the average rotation speed of the ball screw, and the differential value d is obtained (step S203).
  • the replacement of the ball screw is performed by using a ball screw whose specifications and the like do not differ before and after the replacement.
  • the CPU (central processing unit) 30 compares the time average value of the differential value d acquired in step S203 with the time average value of the differential value d acquired in step S110 of the first stage (step S204). ).
  • the CPU (central processing unit) 30 determines that the time average of the differential value d obtained in step S203 is larger than the time average of the differential value d obtained in step S110 of the first stage. case ( "YES" in step S204), it is determined to have been subjected to high operating shock than in the first stage, by changing the load factor f w to a value smaller than the previous load coefficient f w (Step S206), the process proceeds to Step S207. In the step S206, for example, to reduce by 0.1 intervals than the previous load factor f w Load Factor f w.
  • the CPU (central processing unit) 30 determines that the time average value of the differential value d obtained in step S203 is smaller than the time average value of the differential value d obtained in step S110 of the first stage. If it is determined that the ( "NO" in step S204), it is determined to have been subjected to less operating shock than in the first stage, a load factor f w to a value greater than the previous load coefficient f w After the change (step S205), the process proceeds to step S207. In the step S205, for example, increased at 0.1 intervals than the previous load factor f w Load Factor f w.
  • Step S207 Calculating CPU (central processing unit) 30, in step S207, to operate the ball screw life expectancy calculator 35, in step S205 or step S206, using a load factor f w was changed, the estimated life time of the ball screw (Step S207).
  • step S208 the user determines whether or not the ball screw has been damaged earlier than the estimated life time of the ball screw calculated in step S207, and the ball screw is sooner than the estimated life time of the ball screw calculated in step S207. If it is determined that damaged the ( "YES" in step S208), CPU (central processing unit) 30, by changing the load factor f w to a value greater than the previous load coefficient f w (step S210) The process returns to step S202. In the step S210, for example, increased at 0.1 intervals than the previous load factor f w Load Factor f w.
  • step S207 when the user determines that the ball screw is not damaged earlier than the estimated life time of the ball screw calculated in step S207 (“NO” in step S208), the ball screw is completely damaged. However, it is determined whether or not replacement is necessary due to severe deterioration (step S209). If the user determines that replacement of the ball screw is necessary (“YES” in step S209), CPU (central processing unit) 30, by changing the load factor f w to a value greater than the previous load coefficient f w (step S210), the process returns to step S202.
  • CPU central processing unit
  • step S209 the CPU (central processing unit) 30 transmits the ball screw before the ball screw needs to be replaced. It is determined whether or not the estimated life time has been reached (step S211).
  • step S211 the CPU 30 determines that the estimated life time of the ball screw has not been reached before the ball screw needs to be replaced (“NO” in step S211), the CPU 30 executes the processing. It returns to step S203.
  • step S211 when the CPU (central processing unit) 30 determines that the estimated life time of the ball screw has been reached before the ball screw needs to be replaced (“YES” in step S211), the CPU (central processing unit) 30 changes the weighting factor f w to a value smaller than the previous load coefficient f w (step S212), the process returns to step S203.
  • step S211 for example, to reduce by 0.1 intervals than the previous load factor f w Load Factor f w.
  • the press device 100 includes an initial load coefficient storage unit 25 that stores an arbitrary load coefficient of a ball screw, and a load value that detects an axial load value applied to the ball screw.
  • the detection unit (circuit unit 15) and the load value detection unit (circuit unit 15) calculate the amount of change in the detected load value in the axial direction, and the differential value calculation unit 31 calculates the difference.
  • a load coefficient adjustment unit 32 that adjusts an arbitrary load coefficient of the ball screw stored in the initial load coefficient storage unit 25 based on the change amount of the load value, and a load detected by the load value detection unit (the circuit unit 15).
  • the estimated life time of the ball screw is calculated using a value obtained by adjusting an arbitrary load coefficient of the ball screw stored in the initial load coefficient storage unit 25 based on the calculated amount of change in the load value. From this, it becomes possible to more accurately adjust the load coefficient stored in advance using the differential value (the amount of change in the load value). Specifically, the load coefficient is increased or decreased by comparing a differential value in a certain usage method with a differential value in another usage method. According to this method, when the use of the ball screw changes, it is possible to obtain the load coefficient according to the use mode. Further, the estimated life of the ball screw according to the use mode can be calculated from the load coefficient. Therefore, the life time of the ball screw can be easily and accurately estimated.
  • the press device 100 calculates the average axial load value calculated by the average axial load value calculation unit 33 and the average of the ball screw calculated by the average rotation speed calculation unit 34. It is calculated based on the rotation speed and the life time of an arbitrary ball screw. From this, it is possible to determine a rough load coefficient by actually using an arbitrary ball screw up to the life and comparing the life expected from the axial load value and the rotation speed with the actual life. Becomes Using the load coefficient obtained by this method, the estimated life when a ball screw having the same type and size as those used up to that time is used in a similar usage method is roughly determined. Therefore, the life time of the ball screw can be easily and accurately estimated.
  • the axial load value applied to the ball screw is determined by comparing the load value applied to the ball screw measured by the load cell, or the load value applied to the ball screw measured by the load cell to the press value. And the load value generated by the acceleration and deceleration of the ball screw when the ram moves up and down. Therefore, the value of the axial load applied to the ball screw is the load value applied to the ball screw measured by the load cell, or the load value applied to the ball screw measured by the load cell and the ball screw when the press ram moves up and down.
  • the processing of the press device 100 is recorded on a computer system or a computer-readable recording medium, and the program recorded on the recording medium is read and executed by the press device 100, thereby realizing the press device 100 of the present invention.
  • the computer system or the computer includes an OS and hardware such as peripheral devices.
  • ⁇ "Computer system or computer also includes a homepage providing environment (or display environment) if a WWW (World Wide Web) system is used.
  • the above program may be transmitted from a computer system or computer storing this program in a storage device or the like to another computer system or computer via a transmission medium or by a transmission wave in the transmission medium.
  • the "transmission medium” for transmitting a program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.
  • the program may be for realizing a part of the functions described above. Furthermore, what can implement
  • the embodiments of the present invention have been described in detail with reference to the drawings.
  • the specific configuration is not limited to the embodiments, and includes a design and the like without departing from the gist of the present invention.
  • the function of estimating the life of the ball screw is included as a part of the function of the press device 100.
  • the present invention is not limited to this. May be provided separately from the press device 100.
  • the server on the cloud may have the function of estimating the life of the ball screw.
  • the example has been described in which the life estimation of the ball screw is mainly performed only by the unique press device 100.
  • the learning data can be obtained by using a plurality of the same press devices 100 at the same time. May be shared. In this case, since a large amount of learning data can be obtained from a plurality of the same press devices 100, the learning time can be reduced.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Press Drives And Press Lines (AREA)
  • Control Of Presses (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
PCT/IB2019/052943 2018-09-07 2019-04-10 プレス装置、端末装置、ボールねじ推定寿命算出方法およびプログラム WO2020049370A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020217001101A KR102591896B1 (ko) 2018-09-07 2019-04-10 프레스 장치, 단말장치, 볼나사 추정수명 산출방법 및 프로그램
CN201980047393.2A CN112639429B (zh) 2018-09-07 2019-04-10 冲压装置、终端装置、滚珠丝杠估计寿命计算方法以及程序
DE112019004468.0T DE112019004468T5 (de) 2018-09-07 2019-04-10 Pressvorrichtung, Endgerät, sowie Verfahren und Programm zum Berechnen der geschätzten Lebensdauer einer Kugelgewindespindel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-167789 2018-09-07
JP2018167789A JP7097268B2 (ja) 2018-09-07 2018-09-07 プレス装置、端末装置、ボールねじ推定寿命算出方法およびプログラム

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