JP2019118973A - Design support device of tooling and processing jig - Google Patents

Abstract

To provide a design support device of a tooling and a processing jig which can prevent the lowering of the design efficiency of the tooling and the processing jig while enhancing processing accuracy, in machine processing.SOLUTION: A design support device 10 for supporting the design of a tooling and a processing jig for machining a workpiece which is fixed to the processing jig by using a tool attached to a processing facility comprises: means for calculating a first vibration property in a prescribed processing condition from the vibration property of the processing facility and a shape and a material characteristic of the tool; means for calculating a second vibration property from shapes and material characteristics of the workpiece and the processing jig; and processing accuracy prediction means for predicting processing accuracy. When the second vibration property is equal to or more than a prescribed value, the processing accuracy prediction means calculates a first displacement amount on the basis of the first vibration property and a cutting force, and predicts the processing accuracy of a processing region from a second displacement amount calculated based on the first displacement amount and the second vibration property.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a tooling and processing jig design support device.

  In machining using a rotating tool, it is necessary to prevent chatter vibration or distortion in order to increase the processing accuracy and efficiency. Patent Document 1 discloses a method of preventing chatter vibration by setting conditions under which chatter vibration does not occur by using a stability limit diagram in the frequency response of compliance of a processing apparatus equipped with a tool.

JP, 2013-043240, A

  The cause of chatter vibration may be attributed to a workpiece as a workpiece or a jig for fixing the workpiece. In general, it is difficult to avoid chatter vibration caused by a plurality of factors as compared to the case caused by one factor. On the other hand, it is desirable to increase the design efficiency of tooling and processing jigs.

  The present invention has been made in view of the above problems, and in tooling, designing of tooling and processing jig capable of preventing a decrease in design efficiency of tooling and processing jig while improving machining accuracy It provides a support device.

  The tooling and processing jig design support apparatus according to the present invention is a tooling and processing tool for machining a workpiece fixed to a processing jig using a tool attached to processing equipment. A design support apparatus for supporting a design, which calculates a first vibration characteristic under a predetermined processing condition from the vibration characteristic of the processing equipment and the shape and material characteristic of the tool; The processing accuracy prediction means comprises means for calculating a second vibration characteristic under the predetermined processing conditions from the shape and material characteristics of the processing jig, and processing accuracy prediction means for predicting processing accuracy. When the second vibration characteristic is equal to or more than a predetermined value, a first displacement amount is calculated based on the first vibration characteristic and the cutting force, and the first displacement amount and the second vibration characteristic are calculated. Calculated based on From the second displacement amount, the processing accuracy of the processed portion is predicted, and when the second vibration characteristic is less than a predetermined value, a first displacement amount based on the first vibration characteristic and the cutting force Is calculated, and the processing accuracy of the processing site is predicted from the first displacement amount.

  In the tooling and processing jig design support device according to the present invention, when the second vibration characteristic is equal to or more than the predetermined value, the processing accuracy prediction means performs the first processing based on the first vibration characteristic and the cutting force. The displacement amount is calculated, and the processing accuracy of the processed portion is predicted from the second displacement amount calculated based on the first displacement amount and the second vibration characteristic, while the second vibration characteristic is predetermined. If less than the value, the first displacement amount is calculated based on the first vibration characteristic and the cutting force, and the processing accuracy of the processing site is predicted from the first displacement amount. Therefore, in machining, it is possible to prevent a reduction in the design efficiency of the tooling and the processing jig while obtaining desired processing accuracy.

  According to the present invention, in machining, it is possible to prevent a reduction in design efficiency of tooling and a processing jig while obtaining desired processing accuracy.

It is a functional block diagram of a tooling and processing jig design support device according to the embodiment. It is a flowchart which shows a series of operation | movement of the design assistance apparatus of the tooling concerning embodiment, and a process jig. It is an illustration of the graph which shows the vibration characteristic of a processing installation and a tooling (tool) which the design assistance apparatus of the tooling and processing jig concerning embodiment calculates. It is an illustration of the graph which shows the vibration characteristic of a to-be-processed object and a process jig which the design assistance apparatus of the tooling and process jig concerning embodiment calculates. FIG. 4 is a graph showing an example of the reference value a and each condition. With regard to the processing accuracy of the hole for inserting each part in the housing of the transaxle according to the embodiment, the processing accuracy predicted by the conventional tooling and design jig for processing jig, and the tooling and processing jig according to the present invention It is the graph which showed the result of the processing accuracy predicted by the design support device, and the actual processing accuracy.

Embodiment
Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The “tooling” in the present embodiment is, for example, tools and processing conditions. The "tooling design" is, for example, selecting a tool to be used and selecting a processing condition. The “designing of the processing jig” is, for example, to determine the material and the shape of the processing jig for fixing the workpiece.

The tooling and processing jig design support device 10 fixes the workpiece to the processing jig, and when machining using the tooling, calculates the processing accuracy based on the input conditions.
FIG. 1 is a functional block diagram of a tooling and processing jig design support apparatus 10 according to the embodiment. As shown in FIG. 1, the tooling and processing jig design support device 10 includes a display unit 20, an input unit 30, a storage unit 40, and an arithmetic unit 50. The tooling and processing jig design support device 10 is realized, for example, by incorporating software in a personal computer. Moreover, it implement | achieves by the apparatus for exclusive use provided with the function mentioned above.

Next, each functional block will be described.
The display unit 20 of FIG. 1 displays information input by the user. Further, the display unit 20 displays the calculation result. The display unit 20 is, for example, a CRT (Cathode Ray Tube) or a liquid crystal display device.

  The input unit 30 of FIG. 1 is a device for the user to input "various parameters" and "various data". In other words, the input unit 30 receives various parameters and various data.

  The “various parameters” in the present embodiment indicate, for example, material characteristics and the like of a tool, a workpiece, and a processing jig used to fix the workpiece. Specifically, they are materials of tools, processing jigs, and material characteristics. Material properties are, for example, the Young's modulus, Poisson's ratio, density or damping coefficient of the material.

  Moreover, “various data” in the present embodiment is, for example, CAD (Computer-Aided Design) which is data of the shape of a tool, a workpiece, a processing jig used for fixing a workpiece, etc., and processing equipment. ) Data, processing conditions of the workpiece, etc. The processing equipment is, for example, a machining center or the like. A processing facility such as a machining center holds a tool for processing a workpiece. Specifically, processing equipment such as a machining center grips, for example, a cutting tool, rotates the cutting tool, and performs drilling and the like on a workpiece.

  As data of processing equipment, a spindle model can be used instead of CAD data. The main spindle model is a model representing processing equipment with elasticity and a rigid element, and can represent vibration characteristics. In general, the term "vibration characteristics" indicates a plurality of meanings, and indicates compliance in which displacement is measured, mobility in which velocity is measured, and acceleration in which acceleration is measured. However, “vibration characteristics” in the present embodiment indicates “compliance (μm / N)” indicating displacement (μm) when a force of 1 N is applied.

  The input unit 30 shown in FIG. 1 has a keyboard for the user to input such various parameters or various data. Furthermore, the input unit 30 can capture such various parameters or various data via the communication means. The input unit 30 can also capture such various parameters or various data via a storage medium such as a memory card.

  A storage unit 40 illustrated in FIG. 1 stores various parameters or various data input from the input unit 30, a result of calculation performed by the calculation unit 50, and the like. The storage unit 40 can also store in advance material properties frequently used for calculation, such as Young's modulus, Poisson's ratio, density or damping coefficient. Further, the storage unit 40 is configured of a non-volatile storage device. The non-volatile storage device is, for example, an EEPROM (Electrically Erasable Programmable Read-Only Memory), a flash memory, a hard disk drive, or the like.

  The calculation unit 50 shown in FIG. 1 calculates vibration characteristics based on various parameters or various data input to the input unit 30, and information stored in advance in the storage unit 40. Then, when the vibration characteristic is equal to or more than a desired reference value, the first displacement amount is calculated from the calculated first vibration characteristic and the cutting force. Further, a second displacement amount is calculated from the second vibration characteristic and the first displacement amount. Then, based on the second displacement amount and the desired processing accuracy, the processing accuracy of the processing site is calculated. On the other hand, if the vibration characteristic is less than the desired reference value, the displacement amount is calculated from the calculated vibration characteristic and the cutting force, and the processing accuracy of the processing site is calculated based on the displacement amount and the desired processing accuracy.

  Furthermore, the computing unit 50 determines whether the calculated processing accuracy is within the range of processing accuracy desired by the user. That is, if machining is performed according to the input condition by comparing the machining accuracy previously input by the user with the machining accuracy calculated by the calculation unit 50, is it within the range of the desired machining accuracy? It is determined whether or not.

  FIG. 2 is a flowchart showing a series of operations of the tooling and processing jig design support apparatus 10 according to the embodiment. This will be described with reference to FIGS. 3 to 5 corresponding to a part of each step of FIG.

<Step S1: Data Input>
In step S1 of FIG. 2, various parameters and data are input to the design support apparatus 10. In other words, the tool and processing jig design support device 10 receives various parameters and data inputs. That is, the input unit 30 receives various parameters or various data.

  Specifically, the input unit 30 receives various parameters. More specifically, it accepts material characteristics of processing equipment, tools, processing jigs, and workpieces. The material properties refer to Young's modulus, Poisson's ratio, density, reduction factor and the like of the material of the tool, the processing jig and the workpiece.

  Also, the input unit 30 receives various data. Specifically, it receives CAD data of processing equipment, tools, processing jigs and workpieces. For machining equipment, a spindle model may be used instead of CAD data. For example, using a spindle model that indicates the vibration characteristics (compliance, μm / N) of the frequency response obtained by a hammering test or the like. It is also good.

  Further, the input unit 30 receives, as various data, processing conditions when processing a workpiece using a tool. For example, in the case of using a cutting tool as a tool for processing a workpiece, the cutting tool angle, the number of rotations, the feed speed, and the like are accepted as processing conditions for the tool. In addition, with regard to the tool, a position at which vibration is applied, that is, a contact point with the workpiece, ie, an excitation point which is a processing position, and for the workpiece and the processing jig, a contact point between the workpiece and the tool, ie, the workpiece An excitation point, which is a position at which a workpiece is processed by a tool, is received. Furthermore, the input unit 30 receives a reference value a (compliance, μm / N). The reference value a (compliance, μm / N) is a value to be compared with the calculated vibration characteristic value, and is a predetermined value arbitrarily set in accordance with the desired processing accuracy.

  Note that the various parameters or various data received by the input unit 30 need not all be received, and can be appropriately omitted if calculation of processing accuracy described later can be performed. Further, data on material characteristics, general processing conditions, reference processing accuracy and the like are stored in advance in the storage unit 40, and processing accuracy to be described later is calculated using the stored data and conditions. You can also.

<Step S2: Calculation of First Vibration Characteristic>
In step S2 of FIG. 2, the computing unit 50 calculates a first vibration characteristic. The first vibration characteristics in the present embodiment are vibration characteristics of processing equipment and tools. The first vibration characteristic is calculated by combining the CAD data of the tool and the material property with respect to the spindle model of the processing equipment to which the tool is attached. As described above, the spindle model is a model in which processing equipment is expressed by elasticity and a rigid element, and is a model representing vibration characteristics.

  In calculating the first vibration characteristic, first, an excitation point for the tool and a vibration characteristic calculation point which is a position for calculating the first vibration characteristic are determined. The excitation point and the vibration characteristic calculation point define both the x direction and the y direction. At each vibration characteristic calculation point in the x direction and y direction, the vibration characteristics of the processing equipment and the tool under the processing conditions input in step S1 are calculated. Specifically, the spindle model of the processing facility input in step S1 is combined with CAD data and material characteristics of the tool, and the first processing under the input processing conditions is performed using CAE (Computer-aided engineering). Calculate the vibration characteristics of

  FIG. 3 is an example of a graph showing the vibration characteristics of processing equipment and tools calculated by the tooling and processing jig design support apparatus 10 according to the embodiment. The horizontal axis of the graph 100 of FIG. 3 indicates frequency (Hz), and the vertical axis indicates compliance (μm / N), that is, vibration characteristics. A graph 100 shown in FIG. 3 shows first vibration characteristics at vibration characteristic calculation points in the x direction and y direction.

  In the graph 100 shown in FIG. 3, for example, the peak at a frequency of about 700 Hz indicates about 0.5 μm / N. That is, processing is performed using processing equipment and tools having vibration characteristics shown in the graph 100 of FIG. 3 and displacement is about 0.5 μm / N when 1N force is applied in a cycle of about 700 Hz. become. On the other hand, for example, the vibration characteristic (compliance) at a frequency of about 500 Hz is about 0.2 μm / N, and it is considered that the displacement is smaller than that at about 700 Hz. Thus, from the calculated vibration characteristics, it can be predicted at which frequency the compliance is lowered, that is, the vibration is reduced.

<Step S3: Calculation of Second Vibration Characteristic>
In step S3 of FIG. 2, the computing unit 50 calculates a second vibration characteristic as in the first vibration characteristic. The second vibration characteristic in the present embodiment is a vibration characteristic of a processing object and a processing jig that fixes the processing object. The second vibration characteristic is calculated from the CAD data of the workpiece and the processing jig and the material characteristic.

  In calculating the second vibration characteristic, first, an excitation point at the processing portion of the workpiece and a position at which the second vibration characteristic is calculated, that is, a vibration characteristic calculation point which is the processing portion of the workpiece Determined. The excitation point and the vibration characteristic calculation point define both the x direction and the y direction. At each vibration characteristic calculation point in the x direction and the y direction, the vibration characteristics of the workpiece and the processing jig under the processing conditions input in step S1 are calculated. Specifically, the second vibration characteristic is calculated using CAE by combining the CAD data and the material characteristic of the workpiece and the processing jig inputted in step S1.

  FIG. 4 is an example of a graph showing the vibration characteristics of the workpiece and the processing jig calculated by the tooling and processing jig design support apparatus 10 according to the embodiment. The horizontal axis of the graph 200 of FIG. 4 shows frequency (Hz), and the vertical axis shows compliance (μm / N), that is, vibration characteristics. A graph 200 shown in FIG. 4 shows second vibration characteristics at vibration characteristic calculation points in the x direction and y direction.

  In the graph 200 shown in FIG. 4, the peak at a frequency of about 250 Hz indicates about 0.25 μm / N. That is, processing is performed on a workpiece and a processing jig having vibration characteristics shown in the graph 200 of FIG. 4 and displacement is about 0.25 N when 1N force is applied in a cycle of about 250 Hz. It will be. On the other hand, for example, when the frequency is about 50 Hz or more and the peak is not about 250 Hz, the vibration characteristic (compliance) is about 0.1 μm / N, and the displacement is considered to be smaller than that of about 250 Hz.

  The order in which the first vibration characteristic (step S2) and the second vibration characteristic (step S3) are calculated is not limited to this, and the order may be reversed. S3 may be performed simultaneously.

<Step S4: Determination of Vibration Characteristic Value>
In step S4 in FIG. 2, under the processing conditions input in step S1, whether the second vibration characteristic value calculated in step S3 exceeds the reference value a (compliance, μm / N) input in advance in step S1. Determine if The reference value a (compliance, μm / N) is a value to be compared with the calculated vibration characteristic value, and is arbitrarily set according to the desired processing accuracy.

  FIG. 5 is a graph showing an example of the reference value a and each condition in FIG. The horizontal axis of the graph 300 of FIG. 4 indicates frequency (Hz), and the vertical axis indicates compliance (μm / N), that is, vibration characteristics. In the present embodiment, as an example, as shown in FIG. 5, the reference value a is set to 0.1 μm / N.

When the second vibration characteristic (compliance) is the condition K of the reference value a (0.1 μm / N) or more, that is, the second vibration characteristic greater than the equal reference value a, the process proceeds to step S5.
On the other hand, when the second vibration characteristic (compliance) is the condition L less than the reference value a (0.1 μm / N), that is, the second vibration characteristic smaller reference value a, the process proceeds to step S7.

(Step S4: In the case of YES, second vibration characteristic 基準 reference value a)
<Step S5: Calculation of Displacement of Machining Equipment and Tool>
In step S5 of FIG. 2, the calculation unit 50 calculates a first displacement amount of the processing equipment and the tool in the vicinity of the processing site. Specifically, the first vibration characteristic calculated in step S2 is multiplied by the cutting force and a constant to calculate the first displacement amount of the processing equipment and tools in the vicinity of the processing site in the x direction and y direction. . The cutting force is a force required by the tool to cut the workpiece, and is a value calculated using the processing conditions inputted in step S1 and the material characteristics of the processing equipment and the tool. . Next, the process proceeds to step S6.

<Step S6: Calculation of Displacement of Workpiece and Processing Jig>
In step S6 of FIG. 2, the computing unit 50 calculates a second displacement amount of the workpiece and the processing jig near the processing site. Specifically, the second vibration characteristic calculated in step S3 is multiplied by the first displacement amount and constant in step S5 to obtain a workpiece and a processing jig in the vicinity of the processing portion in the x direction and y direction. The second displacement amount is calculated. Here, the first displacement amount of the processing equipment and the tool calculated in step S5 is multiplied by the first displacement which is the displacement amount of the processing equipment and the tool. It is because it is thought that it is proportional to quantity. Next, the process proceeds to step S8.

(Step S4: NO, Case of Second Vibration Characteristic <Reference Value a)
<Step S7: Calculation of displacement of machining equipment and tools>
In step S7 of FIG. 2, the computing unit 50 calculates displacement amounts of the processing equipment and tools in the vicinity of the processing site. Specifically, the first vibration characteristics calculated in step S2 are multiplied by the cutting force and a constant to calculate the displacement amounts of the processing equipment and tools in the vicinity of the processing site in the x direction and y direction. The cutting force is the force required by the tool to cut the workpiece, and is calculated using the processing conditions input in step S1 and the material characteristics of the processing equipment and the tool. . In this step, since the first vibration characteristic is lower than the reference value a, the calculation of the displacement of the workpiece and the processing jig can be omitted. Next, the process proceeds to step S8.

<Step S8: Calculation of Processing Accuracy>
In step S8 of FIG. 2, the calculation unit 50 calculates the actual processing accuracy of the processing site using the processing accuracy desired by the user and the displacement amount calculated in step S6 and step S7.

  When the desired machining accuracy is, for example, roundness in the case of cutting a round hole in a workpiece, machining equipment and tools in the radial direction of the hole, that is, in the direction of vertical force, and the workpiece And calculate relative displacement with the processing jig.

<Step S9: Determination of Processing Accuracy>
In step S9 of FIG. 2, the computing unit 50 determines whether the calculated actual processing accuracy is within the range of processing accuracy desired by the user. That is, the range of desired processing accuracy is obtained when machining is performed according to the input conditions by comparing the processing accuracy input in advance by the user with the actual processing accuracy calculated by the calculation unit 50. Determine if it will be done within.

  If the machining accuracy calculated by the arithmetic unit is within the range of the machining accuracy desired by the user (step S9: YES), it is determined that the machining is performed without problems according to the input condition. In this case, the tooling and processing jig design support device 10 completes the operation.

  On the other hand, when the processing accuracy calculated by operation unit 50 is not within the range of the processing accuracy desired by the user (step S9: NO), it is determined that the desired machining is not performed under the input conditions. , And proceeds to step S10.

<Step S10: Change Design Data>
The user changes the design data input to the input unit 30. Specifically, for example, when the first variation characteristic is large, take measures such as changing the number of rotations of the tool, changing the feed rate of processing, or changing the mounting angle of the tool. Can. On the other hand, when the second vibration characteristic is large, it is possible to change the shape of the processing jig for fixing the workpiece or change the material of the workpiece. The input unit 30 receives the condition thus changed again (step S1). Arithmetic unit 50 performs calculation of step S2 and subsequent steps again for the condition accepted by input unit 30.

  The above-mentioned modification of the design data is to calculate the above-mentioned machining accuracy while changing the parameter for each fixed step so that the machining accuracy is optimized within a predetermined range for a specific parameter. You can also. Furthermore, in order to perform such optimization calculations, parameter changes can be made automatically by a computing unit 50 or another device such as a computer.

  Conventionally, in machining, it has been difficult to avoid chatter vibration caused by a plurality of factors, as compared with the case generally caused by one factor. On the other hand, it has been desired to improve design efficiency.

  In the present embodiment, in addition to the first vibration characteristic caused by the processing equipment and the tool, the second vibration characteristic caused by the workpiece and the processing jig for fixing the workpiece is calculated. Furthermore, when the second vibration characteristic is equal to or higher than the reference vibration value, the first vibration characteristic is multiplied by the cutting force and a constant to calculate the first displacement amount of the processing equipment and the tool in the vicinity of the processing site. . Furthermore, the second displacement amount is calculated by multiplying the second vibration characteristic by the displacement amount of the processing equipment and the tool and the constant.

  On the other hand, when the vibration characteristic caused by the processing device and the tool is less than the vibration characteristic as the reference value, the vibration characteristic is multiplied by the cutting force and the constant to calculate the displacement of the processing equipment and the tool in the vicinity of the processing site.

  Next, the processing accuracy is calculated from the desired processing accuracy and each calculated displacement amount. If the processing accuracy is equal to or more than the desired processing accuracy, the process ends. If the processing accuracy is less than the desired processing accuracy, the design data is changed and recalculated from the beginning.

  Therefore, when the vibration characteristics of the processing equipment and the tool are equal to or greater than the reference value, it is possible to predict more accurate processing accuracy by calculating the vibration characteristics of the workpiece and the processing jig. Furthermore, when the vibration characteristics of the processing equipment and the tool are less than the reference value, it is possible to proceed to the step of calculating and judging the processing accuracy without calculating the vibration characteristics of the workpiece and the processing jig. Can be shortened. Therefore, a reduction in design efficiency can be prevented. That is, with the tooling and processing jig design support device according to the present embodiment, it is possible to prevent a reduction in the design efficiency of the tooling and the processing jig while obtaining desired processing accuracy in machining.

  In this embodiment, with regard to the processing accuracy of the round hole for inserting each part into the housing of the transaxle, the conventional tooling and processing jig design support device and the tooling and processing jig design support device according to the present invention The predicted value was compared with the value of the processing accuracy actually measured. The processing accuracy predicted by the conventional tooling and processing jig design support device is calculated by multiplying the vibration characteristics of processing equipment and tools by the cutting force.

  FIG. 6 shows the processing accuracy predicted by the conventional tooling and processing jig design support device with respect to the processing accuracy of the hole for inserting each part in the housing of the transaxle, and the tooling and processing jig according to the present invention. It is the graph which showed the result of the processing accuracy predicted by the design support device, and the actual processing accuracy. Each bar shows, from the left, a predicted value (blank) of processing accuracy by the conventional design support device, a predicted value (hatched) of processing accuracy by the design support device of the embodiment, and an actual measured value (spots) of processing accuracy. Further, the processing accuracy in the present embodiment is the roundness of a hole processed by round hole processing.

  The horizontal axis of the graph of FIG. 6 indicates the type of hole for inserting each component provided in the housing, and the vertical axis indicates the degree of roundness. From the left, the horizontal axis shows the holes for reduction, the holes for the countershaft, the holes for the differential gear (differential), and the holes for the differential oil seal.

  As for the holes for the sub-shaft in FIG. 6, in particular, the predicted value of the conventional roundness shows a value of about 40, which is different from about 30 which is the actual value of the circularity. On the other hand, the predicted value of the circularity of the example shows about 30 and shows a value close to about 30 which is the measured value of the circularity. Similarly, with regard to the reduction hole, the differential hole, and the differential oil sheet hole, the predicted value of the roundness of this embodiment is more accurate than the conventional predicted value of the circularity. It was possible to calculate the value. The results show that, in machining using the tooling and processing jig design support apparatus of the present invention, it is possible to prevent a decrease in the design efficiency of the tooling and the processing jig while obtaining desired processing accuracy. .

  The present invention is not limited to the above embodiment, and can be appropriately modified without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Tooling and processing jig design support device 20 Display part 30 Input part 40 Storage part 50 Arithmetic part

Claims (1)

A design support device for supporting the design of a tooling and the processing jig in order to machine a workpiece fixed to a processing jig using a tool attached to a processing facility,
A means for calculating a first vibration characteristic under predetermined processing conditions from the vibration characteristic of the processing equipment and the shape and material characteristics of the tool;
A means for calculating a second vibration characteristic under the predetermined processing condition from the shape and the material characteristic of the workpiece and the processing jig;
Processing accuracy prediction means for predicting processing accuracy;
The processing accuracy prediction means calculates a first displacement amount based on the first vibration characteristic and the cutting force when the second vibration characteristic is equal to or more than a predetermined value, and the first displacement amount The processing accuracy of the processing site is predicted from the second displacement amount calculated based on the second vibration characteristic and the second vibration characteristic,
If the second vibration characteristic is less than a predetermined value, a first displacement amount is calculated based on the first vibration characteristic and the cutting force, and the processing accuracy of the processing site is calculated from the first displacement amount. Predict
Design support device for tooling and processing jig.

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