3D Modeling Support Method and Its Apparatus

Abstract

To provide a three-dimensional object manufacturing support method for manufacturing a component efficiently.SOLUTION: A three-dimensional object manufacturing support method includes: calculating an estimated length of the dimension of a final product on the basis of a positional relationship between a reference dimension based on JISB0401 of a bearing component prepared in advance and a housing of a rotary device; acquiring actual shape data of a main shaft component formed on the basis of design data of the main shaft component, the design data being generated based on the estimated length and the reference dimension based on JISB0401 of the bearing component; determining whether the actual shape data satisfies a qualifying standard on the basis of a tolerance in the reference dimension based on JISB0401 of the bearing component and a set grade based on ISO1940-1 regarding balance of a rotating device set in advance; calculating a radial tolerance and a longitudinal tolerance of each of multiple parts other than the main shaft component, on the basis of the qualified actual shape data, the reference dimension, and the set grade; and generating design data of the parts on the basis of, the estimated length of the dimension of the final product and the radial and longitudinal tolerances.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a method and an apparatus for supporting the manufacture of three-dimensional objects, and more particularly, to a method and an apparatus for supporting the manufacture of three-dimensional objects that can eliminate waste in part manufacturing and efficiently manufacture parts.

Background Art

[0002] Patent Document 1 is a technique for suppressing the failure that parts cannot be combined after all parts are shaped when manufacturing a plurality of parts constituting a three-dimensional object, and manufacturing the three-dimensional object more efficiently. Patent Document 2 is a technique for rendering a tolerance scheme and a 3D model that restrict the degree of non-constrained control within a window in such a way that the tolerance scheme annotates a toleranced shape based on an industrial standard specification regarding tolerance transmission.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, all of the documents are techniques for manufacturing based on design data that has already been created. Conventionally, in the design of a shaped object, first, a schematic design of the product is performed, then an assembly design for designing whether to use a plurality of parts constituting the product is performed, and then a detailed design of each of the plurality of parts is performed to create data for the processing drawings of the parts and perform part processing. Even in the technologies of Patent Documents 1 and 2, as in the past, in order to manufacture all parts based on the already created detailed design data, the allowable range due to the tolerances of the parts to which one part is manufactured and assembled can only be changed within the tolerance range of the already created detailed design data. However, in the already created detailed design data, the tolerances are designed to be very small, and in reality, there is a risk that manufacturing must be carried out under very strict conditions. The tolerance ranges of various parts in the design stage and the allowable range for the product to be established are very narrow, and the actual situation is that they do not conform to the manufacturing site. In view of such a situation, the inventor first generates detailed design data of the main parts in the product based on the assembly design before generating the detailed design data of various parts, manufactures the main parts of the required parts, and then fits the components to be fitted to the main parts. The present invention has been made to construct a new mechanism that can efficiently manufacture parts without waste and reduce manufacturing costs by newly generating detailed design data of other various parts and completing the final product.

[0005] Therefore, an object of the present invention is to provide a three-dimensional object manufacturing support method and apparatus that can eliminate waste in part manufacturing and efficiently manufacture parts.

[0006] Other problems of the present invention will become apparent from the following description.

Means for Solving the Problems

[0007] The above problems are solved by the following inventions.

[0008] (Claim 1) A three-dimensional object manufacturing support method for generating design data for each of a plurality of parts constituting a rotating device, the rotating device having a rotating shaft body and a bearing part of the rotating shaft body, which is a final product that converts the kinetic energy of a fluid into a mechanical rotational motion, comprising: Based on the standard dimensions of the bearing parts prepared in advance according to JIS B 0401, the bearing parts, and the positional relationship between the bearing parts and the housing of the rotating equipment, calculate the predicted length of the dimensions of the final product. Based on the predicted length of the dimensions of the final product and the standard dimensions of the bearing parts according to JIS B 0401, generate the design data of the main shaft parts of the rotating equipment. Based on the design data of the main shaft parts, shape the main shaft parts and obtain the actual shape data of the shaped main shaft parts. Determine whether the obtained actual shape data meets the predetermined acceptance criteria based on the tolerance in the standard dimensions according to JIS B 0401 of the bearing parts and the setting grade based on the balance of the rotor according to ISO1940-1 regarding the balance of the rotating body equipment set in advance. Based on the actual shape data of the accepted main shaft parts, the standard dimensions of the bearing parts, and the setting grade, the plurality of of Calculate the radial tolerance and longitudinal tolerance of each of the parts other than the main shaft parts of the rotating equipment. The calculated final of the product Based on the predicted length of the dimensions and the calculated radial tolerance and longitudinal tolerance, generate the design data of each of the plurality of of A method for supporting the manufacture of three-dimensional shaped objects, characterized by generating the design data of each of the parts. (Claim 2) In a rotating equipment that is a final product and converts the kinetic energy of a fluid into a mechanical rotational motion, and has a rotating shaft body and a bearing part of the rotating shaft body, a three-dimensional shaped object manufacturing support device that generates the design data of each of the plurality of parts constituting the rotating equipment, Based on the standard dimensions of the bearing parts prepared in advance according to JIS B 0401, the bearing parts, and the positional relationship between the bearing parts and the housing of the rotating equipment, calculate the predicted length of the dimensions of the final product. Based on the predicted length of the dimensions of the final product and the standard dimensions of the bearing parts according to JIS B 0401, generate the design data of the main shaft parts of the rotating equipment. A determination unit that determines the pass or fail of the main shaft component based on the obtained actual shape data, the reference dimensions, and a setting grade based on the balance of the rotor according to ISO1940-1 related to the balance of the rotating machine device set in advance, Based on the actual shape data of the main shaft component that has passed the determination by the determination unit, the reference dimensions of the bearing component, and the setting grade, the plurality of of A predicted dimension calculation unit that calculates the radial tolerance and longitudinal tolerance of each of the parts Calculated in the predicted dimension calculation unit the aforesaid Final of the product Based on the predicted length of the dimension, the radial tolerance, and the longitudinal tolerance, the design data of each of the plurality of of A design data generation unit that generates design data for each part A three-dimensional object manufacturing support device, characterized by comprising

Effect of the Invention

[0009] According to the present invention, it is possible to provide a three-dimensional object manufacturing support method and apparatus that can eliminate waste in part manufacturing and efficiently manufacture parts.

Brief Description of the Drawings

[0010]

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Embodiments for Carrying Out the Invention

[0011] Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

[0012] The three-dimensional object manufacturing support method of the present invention will be described with reference to FIG. 1.

[0013] FIG. 1 is a flowchart showing an example of the three-dimensional object manufacturing support method of the present invention. The present invention is a manufacturing support method for assisting in the manufacture of a compressor that rotates at high speed and converts the kinetic energy of a fluid into mechanical rotational motion. Conventionally, instead of design data generated before manufacturing parts, the main parts are first manufactured, and based on these main parts, detailed design data for various parts other than the main parts is generated to manufacture rotating equipment.

[0014] The present invention is particularly effective when manufacturing products based on manufacturing requests from other companies. For example, in a manufacturing request from another company, if a product request is received using a rotating bearing of another company, the detailed design data for each part using that bearing part (the detailed design data for the parts constituting the product including the main parts, which will simply be referred to as "design data" as necessary) has already been created.

[0015] However, the tolerance range of the detailed design data for various parts designed before actually manufacturing the product is usually detailed design data with a narrow range where the set tolerance is ±0 to 2 μm. Therefore, the present invention is a very effective manufacturing support method that can set this tolerance range to a wide range and widen the allowable range of parts.

[0016] First, in a rotating equipment that has received a manufacturing request from another company, receive the provision of bearing parts, and based on these bearing parts, calculate the predicted length of the final product completion dimension on the rotating side from the positional relationship between the housing and the bearing parts (S1). Accordingly, design data of the main shaft is generated. The design data of the main shaft is calculated from the expected dimensional length of the final finished product, the standard dimensions based on JIS B 0401 of the bearing parts, and further, the positional relationship between the bearing parts and the rotating equipment housing where the final finished product is located inside.

[0017] Next, based on the design data of the generated main components, the main shaft is shaped by a three-dimensional shaping device (S2).

[0018] Next, the dimensions of the actual shape of the shaped main shaft are measured actually (S3). As a method of actual measurement, centers are formed at both ends of the center in the longitudinal axis direction of the main shaft, and dimensions other than the formed centers can be measured using a fully automatic three-dimensional measuring machine. For the axial dimension of the main shaft, in the automatic measurement program of the fully automatic three-dimensional measuring machine, four or more points of a predetermined end face of the specified main shaft are probed to determine a reference, and the axial dimension is measured. For the measurement of the radial dimension of the main shaft, the radial dimension is calculated by probing six or more points of a semicircle or more part that can be measured. At this time, cylindricity, roundness, etc. can be measured by automatic calculation. In order to confirm the uncertainty in the automatic measurement program, if the inspector actually measures a predetermined radial dimension with a micrometer and the error of the automatic measurement is within a predetermined standard, it can be determined that the dimension of the automatic measurement is correct.

[0019] Next, the actually measured dimensions are input as actual shape data into the three-dimensional shaped object manufacturing support device, and the three-dimensional shaped object manufacturing support device acquires the actual shape data (S4). As an input means, a data input screen (not shown) etc. can be displayed and input.

[0020] Next, it is determined whether the obtained actual shape data of the main shaft corresponds to a preset abnormal range that cannot be assembled, that is, it is determined whether the main shaft can be used (S5), based on the tolerance range in the reference dimensions of the bearing parts and the setting grade related to the balance of the rotating equipment based on ISO1940-1. This is to determine the feasibility of the final product at the time of completion of the main shaft. Based on the set tolerance in the reference dimensions of the bearing parts, the set grade related to balance, and the expected dimensional length of the final completed product, abnormal values of the main shaft are preset.

[0021] If it is determined that it cannot be used (NO in S5), it is determined again that the product cannot be realized, and the manufacturing of the main shaft is repeated until a usable main shaft is manufactured by repeating the steps S1 to S4. As a result, only the parts that are the main parts of the product are first shaped, and the effect of not having to manufacture the component parts to be assembled with the main shaft unnecessarily is obtained. And in the above determination, by determining whether it corresponds to the preset abnormal value, the feasibility of the final product can be determined at the time of shaping the main shaft, so that unnecessary parts do not have to be manufactured. As a result, efficient part manufacturing can be performed.

[0022] If it is determined that it can be used (YES in S5), the rotational side tolerance and the housing side tolerance of the housing and the component parts other than the main shaft constituting the rotating equipment are calculated (S6). In the present invention, based on the actual shape data of the main shaft, which is determined to be usable and is the main part of the product, detailed design data of various parts of the product other than the main part is generated. Therefore, in the present invention, unlike the detailed design data generated before the manufacture of the conventional main part, a mechanism can be constructed in which detailed design data with relaxed tolerances of the parts assembled with the main shaft is generated based on the actual shape data of the main shaft.

[0023] Next, design data of various component parts is generated based on the calculated tolerance range (S7).

[0024] Next, various component parts are manufactured based on the generated design data (S8).

[0025] In the present embodiment, the design data of the main shaft is design data generated based on the predicted length after calculating the predicted length based on the bearing parts received upon a manufacturing request. Then, after the main shaft is shaped, based on the actual shape data of the shaped main shaft, the design data of various parts is generated. For this reason, only the manufactured parts that can actually be assembled to the actual dimensions of the main shaft are shaped. As a result, products are manufactured efficiently without manufacturing unnecessary parts.

[0026] Here, it is preferable to engrave a serial number on the main shaft determined to be usable. Based on this serial number, serial numbers are also assigned to the design data of various component parts, and at the same time, by assigning the same serial number to each of the manufactured various component parts, assembly can be facilitated. Not limited to serial numbers, it is preferable that a mechanism is constructed such that the main shaft determined to be usable and each component part corresponding to the main shaft can be easily identified.

[0027] In the present invention, the rotational side tolerance is the axial and radial tolerances of each component part including the main shaft that constitutes the rotating shaft body described later. Also, the housing side tolerance is the axial and radial tolerances of the bearing parts and between the rotating shaft body and the housing.

[0028] By the three-dimensional modeling object manufacturing support method of the present invention described above, unnecessary part manufacturing can be eliminated and products can be manufactured efficiently. As a result, the manufacturing cost can be reduced.

[0029] The product manufactured by the three-dimensional modeling object manufacturing support method described above will be further described based on the drawings.

[0030] FIG. 2 is a perspective view showing an example of a compressor, FIG. 3 is a left side view of the compressor, and FIG. 4 is a sectional view taken along line (IV)-(IV) of the compressor shown in FIG. 3. FIG. 5 is an exploded perspective view of the compressor, FIG. 6 is a sectional view showing an example of a main shaft of the compressor, FIG. 7 is an exploded perspective view of components of a rotating shaft body assembled with the main shaft, and FIG. 8 is a perspective view showing an example of a state in which the rotating shaft body of FIG. 7 is assembled.

[0031] As shown in FIGS. 2 and 3, the compressor 1 includes a housing portion 10, and a left housing portion 11 and a right housing portion 12 are connected to both sides of the housing portion 10. The housing portion 10 includes a rotating body inside, sucks air from a suction port 11a along the axial direction of the left housing portion 11, and discharges the compressed air from a discharge port 11b along the radial direction by the rotation drive of the rotating body. The right housing portion 12 is configured in the same manner. Air is sucked from a suction port 12a along the axial direction of the right housing portion 12, and the compressed air is discharged from a discharge port 12b along the radial direction by the rotation drive of the rotating body.

[0032] As shown in FIGS. 4 to 8, a rotating shaft body 2 composed of a plurality of components is provided inside the housing portion 10. A bearing component 3 is incorporated in the rotating shaft body 2.

[0033] As shown in FIG. 6, the rotating shaft body 2 is provided with a main shaft 20 which is a main component of the rotating shaft body 2.

[0034] On the left side of the main shaft 20, as shown in FIG. 7, a left bearing component seat 21 is connected, and the bearing component 3 is installed on the left bearing component seat 21.

[0035] The bearing component 3 consists of an axial bearing 30 and a thrust bearing 31. In the example of Fig. 7, on the left side, the axial bearing 30 and the thrust bearing 31 are provided, and on the right side, the axial bearing 30 is provided. The axial bearing 30 and the thrust bearing 31 may be provided on both sides.

[0036] One end side of the bearing component 3 installed on the left bearing component seat 21 is fixed by the bearing component seat 21, and the other end side is fixed so that the bearing component 3 does not come off the bearing component seat 21 by screwing a ring-shaped end portion 22 onto the bearing component seat 21.

[0037] A pressure-boosting impeller 23 is connected to the shaft of the main shaft 20 extending from the ring-shaped end portion 22 and is fixed by a cap 24. By fixing the tip of the main shaft 20 extending from the pressure-boosting impeller 23 with the cap 24, the pressure-boosting impeller 23 is fixed so as not to come off the shaft of the main shaft 20.

[0038] On the right side of the main shaft 20, as shown in Fig. 7, a right bearing component seat 25 is connected, and the bearing component 3 is installed on the bearing component seat 25.

[0039] One end side of the bearing component 3 installed on the right bearing component seat 25 is fixed by the bearing component seat 25, and the other end side is fixed so that the bearing component 3 does not come off the bearing component seat 25 by screwing a ring-shaped end portion 26 onto the bearing component seat 25.

[0040] Furthermore, a heat-radiating impeller 27 is connected to the shaft of the main shaft 20 extending from the ring-shaped end portion 26, and then a right pressure-boosting impeller 28 is connected and fixed by a cap 29.

[0041] When the rotating shaft body 2 is incorporated into the housing portion 10 of the compressor 1, the bearing chamber bottom cover 13 is attached to the left bearing component sheet 21 of the rotating shaft body 2. After attaching the bottom cover 13, the axial bearing 30 is attached, the adjustment ring 14 is attached, and the push bearing 31 is attached. Then, the bearing chamber upper cover 15 is attached. The bearing chamber can be formed by the bottom cover 13 and the upper cover 15.

[0042] Also, the bearing chamber bottom cover 16 is attached to the right bearing component cover 25 of the rotating shaft body 2. After attaching the bottom cover 16, the axial bearing 30 is attached, and the upper cover 17 is attached. The bearing chamber can be formed by the bottom cover 16 and the upper cover 17.

[0043] Then, the heat dissipation chamber bottom cover 18 is attached to the upper cover 17, the heat dissipation impeller 27 is attached, and the heat dissipation chamber upper cover 19 is attached. The heat dissipation chamber is formed by the bottom cover 18 and the upper cover 19 of the heat dissipation chamber, and heat dissipation can be performed by the rotational drive of the heat dissipation impeller. Although the case where the heat dissipation chamber is on the right side is illustrated, it may be formed on the left side or on both sides.

[0044] In this embodiment, various detection sensors 4 can be incorporated so that the temperature, rotational speed, number of revolutions, rotation vibration, etc. of the internal rotating shaft body 2 can be detected from the housing portion 10. As the various detection sensors, for example, for the number of revolutions and shaft vibration, known displacement sensors and the like can be used. For temperature, rotational speed, etc., known detection sensors can also be used.

[0045] In this embodiment, it is characteristic that the design data of these component parts are generated after shaping the main shaft 20.

[0046] Hereinafter, the manufacturing of some of the various parts of the compressor 1 will be further described in accordance with the three-dimensional modeling object manufacturing support method of the present invention.

[0047] For example, the rotational side tolerance and the housing side tolerance in the case of the seat 21 for the left bearing component joined to the main shaft 20 will be described.

[0048] For example, the seat 21 for the left bearing component, which will be described later and is attached to the main shaft 20, is cylindrical as shown in FIG. 7, and has an inner shape corresponding to the shape of the main shaft and an outer shape corresponding to the shapes of various components attached to the seat 21 for the left bearing component.

[0049] Here, the rotational side tolerance of the seat 21 for the left bearing component is calculated as the allowable range in the axial direction and the radial direction at the joint portion with the main shaft 20 side. Further, the housing side tolerance of the seat 21 for the left bearing component is the allowable range in the axial direction and the radial direction of the outer shape of the portion where the bearing component 3 is attached.

[0050] The design data of the housing side tolerance of all components in the conventional design data was design data with a tolerance of ±0 to 2 μm. The tolerance is set narrowly in the design data in the state where no parts have been manufactured yet, not the tolerance in actual manufacturing.

[0051] Here, as in the present invention, based on the actual shape data of the main shaft component, the reference dimensions based on JIS B 0401 of the bearing component, and the setting grade according to the balance of the rotor based on ISO1940-1 regarding the balance of the rotating machine device set in advance, the housing side tolerance is calculated.

[0052] As a result, when the housing side tolerance of the seat for the left bearing component is calculated to be ±0 to 30 μm, the tolerance range, which is the manufacturing allowable range on the housing side of the seat for the left bearing component, becomes wider. Thereby, in the conventional design data, parts that were judged to be unusable, for example, parts with a tolerance wider than +3 μm or narrower than -3 μm, that is, parts in the range of ±3 to 30 μm can be used, and even if the manufacturing accuracy of the usable parts is relaxed, the quality of the product can be maintained.

[0053] Furthermore, it will be described based on FIGS. 4 and 6. In this embodiment, the main shaft 20 and the left bearing component seat 21 are connected. In this case, as shown in the illustrated example, for example, the connection portions A and B between the left bearing component seat 21 and the main shaft 20 become fitting portions. The axial length A is the fitting portion between the main shaft 20 and the left bearing component seat 21 in the axial direction, and the diameter B in the radial direction is the fitting portion in the radial direction. In the conventional design data, the tolerances of these portions were ±0 to 2 μm. However, by inputting the actual shape data of the main shaft and constructing a mechanism for calculating the tolerances, the tolerance of the seat 21 was calculated to be, for example, ±5 μm, and the tolerance range was widened.

[0054] In the above description, the left bearing component seat 21 has been described. However, in this embodiment, for various components other than the left bearing component seat 21 described above, the tolerances are calculated in the same manner. As a result, the allowable range of the components that can be used can be increased, so that components that were considered unusable in the conventional design data can also be used. While relaxing the system accuracy, the manufacturing tolerance is increased, enabling efficient component manufacturing.

[0055] Therefore, in the present invention, after the actual main component (main shaft) is modeled, the tolerance range is calculated by a predetermined mechanism. As a result, instead of the conventional tolerance range, the allowable tolerance range is calculated, and new design data for components other than the main component is generated. This new design data for components other than the main component can widen the tolerance range depending on the components, relax the manufacturing accuracy of the components, and maintain the product quality.

[0056] FIG. 9 is a block diagram showing an example of a three-dimensional modeling manufacturing support apparatus of the present invention.

[0057] As shown in FIG. 9, reference numeral 100 denotes a three-dimensional modeling manufacturing support apparatus. The three-dimensional modeling manufacturing support apparatus 100 includes a data acquisition unit 101, a determination unit 102, a calculation unit 103, and a design data generation unit 104.

[0058] The three-dimensional object manufacturing support device 100 generates design data for each of a plurality of parts that constitute a compressor having a rotating shaft body and a bearing component of the rotating shaft body, which convert the kinetic energy of a fluid into mechanical rotational motion and are the final products.

[0059] The three-dimensional object manufacturing support device 100 inputs the standard dimensions based on JIS B 0401 of the bearing component prepared in advance, and inputs the position information between the bearing component and the housing of the rotating device. Based on the standard dimensions and the position information, the calculation unit 103 calculates the predicted length of the dimensions of the final product.

[0060] Based on the predicted length of the dimensions of the calculated final product and the standard dimensions of the bearing component, the design data generation unit 104 generates the design data of the main shaft.

[0061] Based on the generated design data, the main shaft is shaped, and the actual shape data of the main shaft is actually measured. Since the above-described method can be used as the actual measurement method, the description thereof is omitted here.

[0062] The data acquisition unit 101 acquires the actual shape data of the actually measured main shaft.

[0063] The determination unit 102 determines whether or not the acquired actual shape data corresponds to an abnormal value set based on the standard dimensions and the setting grade according to the balance of the rotor based on ISO1940-1 regarding the balance of the rotating device set in advance.

[0064] Based on the actual shape data of the main shaft that does not correspond to the abnormal value, that is, the passed main shaft, the standard dimensions of the bearing component, and the setting grade, the calculation unit 103 calculates the radial tolerance and the longitudinal tolerance of each of the plurality of parts other than the main shaft of the rotating device.

[0065] Based on the radial tolerance and the longitudinal tolerance calculated by the calculation unit 103, the design data generation unit 104 generates the design data for each of the plurality of parts.

[0066] Based on the design data of the plurality of parts other than the generated main shaft, the plurality of parts are manufactured.

[0067] As a result, it is possible to efficiently manufacture the product without manufacturing unnecessary parts.

[0068] As described above, by using the three-dimensional object manufacturing support method and the three-dimensional object manufacturing support device of the present invention, the manufacturing of a very large number of various parts constituting the product can be made more efficient by using a metal 3D printer. As a result, the manufacturing cost of the product can be reduced by relaxing the tolerance. Further, not limited to the metal 3D printer, by using the three-dimensional object manufacturing support method and the three-dimensional object manufacturing support device of the present invention, the manufacturing cost can also be reduced by relaxing the tolerance in the manufacturing of products using conventional manufacturing techniques such as cutting.

Explanation of reference numerals

[0069] 1: Compressor 10: Housing part 11: Left housing part 11a: Suction port 11b: Discharge port 12: Right housing part 12a: Suction port 12b: Discharge port 13: Bearing chamber bottom cover 14: Adjusting ring 15: Bearing chamber upper cover 16: Bearing chamber bottom cover 17: Bearing chamber upper cover 18: Heat dissipation chamber bottom cover 19: Heat dissipation chamber upper cover 2: Rotating shaft body 20: Main shaft 21: Left bearing part sheet 22: End 23: Compressor impeller 24: Cap 25: Cover for right bearing parts 26: End 27: Radiator impeller 28: Compressor impeller 29: Cap 3: Bearing parts 30: Axial bearing 31: Thrust bearing 4: Detection sensor 100: 3D modeling manufacturing support device 101: Data acquisition unit 102: Judgment unit 103: Calculation unit 104: Design data generation unit

Claims

1. In a rotating device having a rotating shaft body and bearing parts of the rotating shaft body, which is a final product that converts the kinetic energy of a fluid into mechanical rotational motion, a three-dimensional modeling manufacturing support method for generating design data for each of a plurality of parts constituting the rotating device, comprising: calculating an expected length of the dimensions of the final product based on the standard dimensions based on JIS B 0401 of the bearing parts prepared in advance, the bearing parts, and the positional relationship between the bearing parts and the housing of the rotating device; generating design data for the main shaft part of the rotating device based on the expected length of the dimensions of the final product and the standard dimensions based on JIS B 0401 of the bearing parts; forming the main shaft part based on the design data of the main shaft part and obtaining actual shape data of the formed main shaft part; determining whether the obtained actual shape data meets a predetermined acceptance criterion based on the tolerance in the standard dimensions based on JIS B 0401 of the bearing parts and the setting grade based on the balance of the rotor according to ISO 1940-1 regarding the balance of the rotating body device set in advance; calculating the radial tolerance and longitudinal tolerance for each of the plurality of parts other than the main shaft part of the rotating device based on the actual shape data of the accepted main shaft part, the standard dimensions of the bearing parts, and the setting grade; generating design data for each of the plurality of parts based on the calculated expected length of the dimensions of the final product and the calculated radial tolerance and longitudinal tolerance. A three-dimensional modeling manufacturing support method characterized by the above.

2. In a rotating device having a rotating shaft body and bearing parts of the rotating shaft body, which is a final product that converts the kinetic energy of a fluid into mechanical rotational motion, a three-dimensional modeling manufacturing support device for generating design data for each of a plurality of parts constituting the rotating device, comprising: calculating an expected length of the dimensions of the final product based on the standard dimensions based on JIS B 0401 of the bearing parts prepared in advance, the bearing parts, and the positional relationship between the bearing parts and the housing of the rotating device; Based on the predicted length of the dimensions of the final product and the standard dimensions based on JIS B 0401 of the bearing parts, generate design data for the main shaft parts of the rotating equipment, A determination unit that determines the pass / fail of the main shaft parts based on the acquired actual shape data, the standard dimensions, and the setting grade based on the balance of the rotor according to ISO1940-1 regarding the balance of the rotating body equipment set in advance, Based on the actual shape data of the main shaft parts that passed the determination by the determination unit, the standard dimensions of the bearing parts, and the setting grade, a predicted dimension calculation unit that calculates the radial tolerance and the longitudinal tolerance of each of the plurality of parts other than the main shaft parts of the rotating equipment, A design data generation unit that generates design data for each of the plurality of parts based on the predicted length of the dimensions of the final product calculated by the predicted dimension calculation unit, the radial tolerance, and the longitudinal tolerance, A three-dimensional modeling manufacturing support device, characterized by comprising the above.

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