JP2018001725A - Three-dimensional data-generating device, three-dimensional molding apparatus, production method of molded article, and program - Google Patents

Abstract

A correction amount for forming a second object based on an error between a measurement result of a second object to be finally output and three-dimensional data defining a shape of the second object. The present invention provides a three-dimensional data generation device, a three-dimensional modeling device, a method of manufacturing a modeled object, and a program, which can correct three-dimensional data in a shorter time as compared with the case of calculating. A data generation device (100) defines a measurement result receiving unit (110) for receiving a measurement result obtained by measuring a shape of an output test object (800), and three-dimensional data of the measurement result received by the measurement result receiving unit (110). Three-dimensional data that defines the shape of the output object 900 using the correction data calculation unit 114 that calculates correction data based on an error from the shape, and the correction data calculated by the correction data calculation unit 114 And a three-dimensional data correction unit 120 for correcting [Selection diagram] FIG.

Description

  The present invention relates to a three-dimensional data generation device, a three-dimensional modeling device, a manufacturing method of a modeled object, and a program.

  Patent Document 1 discloses a technique for creating data for minimizing a difference between a dimension of a three-dimensional structure formed by laser irradiation and a design value of a scan path of the three-dimensional structure. Modeling the manufacturing process of the three-dimensional structure, formulating the shrinkage of the material used in the manufacturing process, and using the formulated shrinkage model, the three-dimensional structure after the shrinkage of the material Performing the optimization calculation that minimizes the difference between the dimension of the object and the design value, and calculating the scan length x that minimizes the difference, and performing the formulation includes the scan path of the laser A technique is described that includes formulating a shrinkage function when the material shrinks according to the scan length xi.

  Patent Document 2 discloses data used in a layered modeling apparatus that forms a cured object as a modeled object by laminating a modeling layer obtained by selectively curing a part of the layer on a basic plane. A modeling data creation system for creating modeling data representing the shape of the modeled object, the structure data input unit for inputting the structure data representing the shape of the desired structure, and the structure as the base plane Using the structure data, outer shape data representing the outer shape of the space between the structure and the projection plane that is arranged above and the projected structure is projected perpendicularly to the base plane is generated. An outer shape generation unit, a support member generation unit that generates support member data representing the shape of a support member that supports the structure, and is formed so as to fill substantially the entire space; the support member; and the structure. Consists of A modeling data creation system including a section generation unit that generates section data representing a section shape in each of a plurality of planes substantially parallel to the base plane of a model based on the support member data and the outer shape data is described. ing.

JP2015-58678A JP 2007-62050 A

  An error from the shape defined by the three-dimensional data may occur in the shape of the modeled object formed using the three-dimensional data defining the shape of the modeled object. In order to reduce such errors, the shape of the modeled object is measured, the three-dimensional data is corrected so as to reduce the measured error, and the modeled object is formed again based on the corrected three-dimensional data. Attempts to correct the three-dimensional data may require a calculation using a complicated calculation formula, and correction of the three-dimensional data may take time.

  The present invention corrects when modeling the second modeled object based on the error between the measurement result of the second modeled object that is finally output and the three-dimensional data that defines the shape of the second modeled object. It is an object of the present invention to provide a three-dimensional data generation device, a three-dimensional modeling device, a manufacturing method of a model, and a program that can correct three-dimensional data in a short time compared to the case of calculating the amount.

  The present invention according to claim 1 accepts a measurement result for receiving a measurement result obtained by measuring the shape of the first modeled object output by the output device using the first three-dimensional data defining the shape of the first modeled object. A correction data calculation unit that calculates correction data based on an error from the shape defined by the first three-dimensional data of the measurement result received by the measurement result reception unit, and the correction data calculation unit includes: A three-dimensional data generation device including a data correction unit that corrects the second three-dimensional data that defines the shape of the second modeled object using the calculated correction data.

  According to a second aspect of the present invention, the measurement result receiving unit has at least one of a longitudinal length, a lateral length, and a height in the first modeled object according to the shape of the first modeled object. The three-dimensional data generation apparatus according to claim 1, wherein one is received as a measurement result.

  According to a third aspect of the present invention, the measurement result receiving unit includes a plurality of first shaped objects in which at least one of the length in the vertical direction, the length in the horizontal direction, the height, and the angle of the inclined surface is different from each other. The three-dimensional data generation device according to claim 1, wherein the three-dimensional data generation device receives a plurality of measurement results.

  The present invention according to claim 4 further includes a correction data storage unit that stores the correction data calculated by the correction data calculation unit, and the data correction unit is stored in the correction data storage unit. The three-dimensional data generation apparatus according to claim 1, wherein the second three-dimensional data is corrected using the correction data.

  The present invention according to claim 5 is the three-dimensional data shaping apparatus according to any one of claims 1 to 4, wherein the measurement result receiving unit receives the measurement result when a predetermined condition is satisfied.

  The present invention according to claim 6 accepts a measurement result for receiving a measurement result obtained by measuring the shape of the first modeled object output by the output device using the first three-dimensional data defining the shape of the first modeled object. A correction data calculation unit that calculates correction data based on an error from the shape defined by the first three-dimensional data of the measurement result received by the measurement result reception unit, and the correction data calculation unit includes: Using the calculated correction data, the data correction unit for correcting the second three-dimensional data defining the shape of the second modeled object, and the first modeled object are output and corrected by the data correction unit. An output unit that outputs a second model using the obtained data.

  The present invention according to claim 7 accepts a measurement result for receiving a measurement result obtained by measuring the shape of the first modeled object output by the output device using the first three-dimensional data defining the shape of the first modeled object. A correction data calculation step for calculating correction data based on an error from a shape defined by the first three-dimensional data of the measurement result received in the measurement result reception step, and the correction data calculation step And a data correction step of correcting the second three-dimensional data defining the shape of the second modeled object using the calculated correction data.

  The present invention according to claim 8 is a measurement result reception for receiving a measurement result obtained by measuring the shape of the first modeled object output by the output device using the first three-dimensional data defining the shape of the first modeled object. A correction data calculation step for calculating correction data based on an error from a shape defined by the first three-dimensional data of the measurement result received in the measurement result reception step, and the correction data calculation step Using the calculated correction data, a data correction process for correcting the second three-dimensional data defining the shape of the second modeled object, and the first modeled object are output and corrected in the data correction process. An output step of outputting a second modeled object using the obtained data.

  The present invention according to claim 9 is a measurement result reception for receiving a measurement result obtained by measuring the shape of the first modeled object output by the output device using the first three-dimensional data defining the shape of the first modeled object. A correction data calculation step for calculating correction data based on an error from a shape defined by the first three-dimensional data of the measurement result received in the measurement result reception step, and the correction data calculation step. A program for causing a computer to execute a data correction step of correcting second 3D data defining the shape of the second modeled object using calculated correction data.

  The present invention according to claim 10 accepts a measurement result for receiving a measurement result obtained by measuring the shape of the first modeled object output by the output device using the first three-dimensional data defining the shape of the first modeled object. A correction data calculation step for calculating correction data based on an error from a shape defined by the first three-dimensional data of the measurement result received in the measurement result reception step, and the correction data calculation step. Using the calculated correction data, the data correction step for correcting the second three-dimensional data defining the shape of the second modeled object, the first modeled object is output, and corrected in the data correction step. The output step of outputting the second modeled object using the obtained data is a program for causing the computer to execute.

  According to the first aspect of the present invention, the second modeling is based on the error between the measurement result of the second modeled object that is finally output and the three-dimensional data that defines the shape of the second modeled object. As compared with the case of calculating the correction amount when modeling an object, it is possible to provide a three-dimensional data generation device capable of correcting three-dimensional data in a short time.

  According to the second aspect of the present invention, the measurement result receiving unit is compared with a technique that always accepts all of the length in the vertical direction, the length in the horizontal direction, and the height in the first modeled object. It is possible to easily measure the shaped object.

  According to this invention which concerns on Claim 3, it is the length of a vertical direction, the length of a horizontal direction, and height with the received 1st modeled object by receiving the measured value of a some 1st modeled object. And correction data calculated using the first modeled object with different angles of the inclined surfaces can be predicted, and the three-dimensional data defining the shape of the second modeled object is corrected using the predicted correction data. can do.

  According to the fourth aspect of the present invention, when the second three-dimensional data is corrected, the shape of the first modeled object is always measured by using the data stored in the correction data storage unit. The necessity can be eliminated, and there is no need to always calculate correction data.

  According to the fifth aspect of the present invention, the time required for modeling can be shortened as compared with a technique that always accepts measurement results.

  According to the sixth aspect of the present invention, the second modeling is based on the error between the measurement result of the second modeling object that is finally output and the three-dimensional data that defines the shape of the second modeling object. A three-dimensional modeling apparatus that can correct three-dimensional data in a short time can be provided as compared with the case of calculating a correction amount when modeling an object.

According to the present invention of claim 7,
Based on the error between the measurement result of the second model to be finally output and the three-dimensional data defining the shape of the second model, the correction amount for modeling the second model is calculated. Compared with the case, the manufacturing method of the molded article which can correct three-dimensional data in a short time can be provided.

  According to the eighth aspect of the present invention, the second modeling is based on the error between the measurement result of the second modeled object that is finally output and the three-dimensional data that defines the shape of the second modeled object. Compared to the case of calculating the correction amount when modeling an object, it is possible to provide a method for manufacturing a modeled object that can correct three-dimensional data in a short time.

  According to the ninth aspect of the present invention, the second modeling is performed based on the error between the measurement result of the second modeled object that is finally output and the three-dimensional data that defines the shape of the second modeled object. As compared with the case of calculating the correction amount when modeling an object, it is possible to provide a program that can correct three-dimensional data in a short time.

  According to the tenth aspect of the present invention, the second modeling is based on the error between the measurement result of the second modeling object that is finally output and the three-dimensional data that defines the shape of the second modeling object. As compared with the case of calculating the correction amount when modeling an object, it is possible to provide a program that can correct three-dimensional data in a short time.

It is a figure which shows the three-dimensional modeling system which concerns on the 1st Embodiment of this invention. It is a figure which shows the three-dimensional modeling apparatus which the three-dimensional modeling system shown in FIG. 1 has. It is a block diagram which shows the control part of the three-dimensional modeling apparatus shown in FIG. It is a block diagram which shows the functional structure of the data generation apparatus which the three-dimensional modeling system shown in FIG. 1 has. FIG. 5A is a diagram illustrating a shape defined by the three-dimensional data of the test model, and FIG. 5B is a diagram of the three-dimensional data. FIG. 5C is a diagram illustrating the test model with an error from the shape defined by the three-dimensional data. FIG. 5C is a diagram illustrating the test model output without error from the shape to be performed. 6A is a diagram showing a first example of the error of the test model shown in FIG. 5, and FIG. 6B is a diagram showing a second example of the error of the test model. FIG. 6C is a diagram showing a third example of the error of the test modeled object. FIG. 7D is a diagram showing a fourth example of the error of the test model, and FIG. 7E is a diagram showing a fifth example of the error of the test model. FIG. ) Is a diagram showing a sixth example of the error of the test model, FIG. 7G is a diagram showing a seventh example of the error of the test model, and FIG. 7H is a test sample. It is a figure which shows the 9th example of the error of a molded article. It is a figure which shows the 1st example of the some molded article for a test. It is a figure which shows the 2nd example of the some molded article for a test. It is a figure which shows the 3rd example of the some molded article for a test. It is a figure explaining calculation of the correction amount by the correction amount calculation part. It is a flowchart explaining the process until outputting the molded article for output. It is a block diagram which shows the functional structure of the modeling apparatus which concerns on 2nd Embodiment.

  Next, embodiments for carrying out the present invention will be described with reference to the drawings. FIG. 1 shows a three-dimensional modeling system 10 according to the first embodiment of the present invention. The three-dimensional modeling system 10 includes a data generation apparatus 100, a three-dimensional modeling apparatus 500, and a three-dimensional scanning apparatus 600, which are connected to a network 700.

  The three-dimensional modeling system 10 models a test model 800 (see, for example, FIG. 5), and further models an output model 900 (see FIG. 2). Here, the test model 800 corresponds to the first model, and the output model 900 corresponds to the second model. In addition, the test model 800 is a model that is output to calculate correction data for correcting the three-dimensional data of the output model 900 before the output model 900 is modeled. The modeled object 900 is a final modeled object that the operator desires to output. The test model 800 is modeled using the three-dimensional data of the test model 800 corresponding to the first three-dimensional data, and the output model 900 is the output model 900 corresponding to the second three-dimensional data. It is modeled using the three-dimensional data.

  As the data generation device 100, for example, a personal computer can be used. The data generation device 100 includes a display device 150 and an operation device 190. As the display device 150, for example, a liquid crystal display panel can be used, and as the operation device 190, for example, a keyboard or a mouse can be used. A touch panel may be used as a combination of the functions of the display device 150 and the operation device 190. Details of the data generation device 100 will be described later.

  The three-dimensional scanning device 600 is a so-called 3D scanner, and is used as a shape measuring device that measures the shape of the test object 800. As a shape measuring device for measuring the shape of the test object 800, for example, a CT scanning device (computer tomography device) or the like can be used instead of the three-dimensional scanning device 600. Further, without using a shape measuring device such as the three-dimensional scanning device 600, for example, the operator may measure the shape of the test object 800 using a caliper or a scale.

  In FIG. 2, a three-dimensional modeling apparatus 500 is shown. The three-dimensional modeling apparatus 500 outputs an output modeling object 900 and outputs a test modeling object 800. In the following description, although the case where the 3D modeling apparatus 500 outputs the output modeling object 900 will be described as an example, the 3D modeling apparatus 500 uses the test modeling object 800 in the same manner as the output modeling object 900. Output. The three-dimensional modeling apparatus 500 employs a so-called inkjet method, more specifically, a so-called inkjet ultraviolet curable additive modeling method. In the following description, the case where the inkjet ultraviolet curable layered modeling method is adopted as the three-dimensional modeling apparatus 500 is shown as an example, but the three-dimensional modeling apparatus 500 may adopt another method. That is, the three-dimensional modeling apparatus 500 includes, for example, a heat melting laminating method also called FDM (Fused Deposition Modeling), a powder sintering method also called SLS (Selective Laser Sintering), a powder fixing method, a gypsum laminating method, and an STL. It may be a three-dimensional modeling apparatus that employs a method such as an optical modeling method called (Stereo Lithography) or a sheet material lamination method called LOM (Laminated Object Manufacturing).

  As shown in FIG. 2, the three-dimensional modeling apparatus 500 has a modeling stage 510. In the three-dimensional modeling apparatus 500, the modeling object 900 for output is output so that a modeling material is laminated on the upper surface of the modeling stage 510. Further, a support material laminating unit 990 is output on the upper surface of the modeling stage 510 by laminating a support agent as necessary. The support material stacking portion 990 is formed, for example, to support the output modeling object 900 from the lower side in the gravity direction when there is a portion where the modeling material is not stacked on the lower side in the gravity direction of the output modeling object 900. Is done. The support material stacking portion 990 is removed from the output shaped article 900 by, for example, washing with water after the output shaped article 900 is formed.

  A Z-axis direction moving mechanism 520 is connected to the modeling stage 510. The modeling stage 510 can move in the Z-axis direction (vertical direction) by driving the Z-axis direction moving mechanism 520.

  The three-dimensional modeling apparatus 500 further includes a head unit 530, and the head unit 530 includes a head unit main body 532. An X-axis direction moving mechanism 534 is connected to the head unit main body 532. The head unit 530 can move in the X-axis direction (left-right direction in FIG. 2) by driving the X-axis direction moving mechanism 520. Further, a Y-axis direction moving mechanism 536 is connected to the head portion main body 532. The head unit 530 can move in the Y-axis direction (direction intersecting with the paper surface in FIG. 2) by driving the Y-axis direction moving mechanism 536.

  The head unit 530 further includes a modeling material injection nozzle 540. The modeling material injection nozzle 540 injects the modeling material stored in the modeling material storage unit 542 toward the modeling stage 510. As the modeling material, a photocurable resin can be used.

  The head unit 530 further includes a support material injection nozzle 550. The support material injection nozzle 550 injects the support material stored in the support material storage unit 552 toward the modeling stage.

  The head unit 530 further includes a smoothing device 560. The smoothing device 560 smoothes the modeling material and the support material injected to the modeling stage 510. The smoothing device 560 includes a rotating member 562 that rotates so as to scrape excess modeling material and excess port material.

  The head unit 530 further includes a light irradiation device 570. The light irradiation device 570 cures the modeling material injected onto the modeling stage 510 by irradiating light, and cures the support material.

  FIG. 3 is a block diagram illustrating the control unit 580 included in the three-dimensional modeling apparatus 500. As shown in FIG. 3, the control unit 580 includes a control circuit 582, and the data generation apparatus 100 (see FIG. 1) is connected to the control circuit 582 via a network 700 (see FIG. 1) and a communication interface 584. The generated cross-sectional shape data of the test model 800 and the cross-sectional data of the output model 900 are input.

  Further, in the three-dimensional modeling apparatus 500, an X-axis direction moving mechanism 534, a Y-axis direction moving mechanism 536, a Z-axis direction moving mechanism 520, a modeling material injection nozzle 540, and a support material injection are output from the control circuit 582. The nozzle 550, the smoothing device 560, and the light irradiation device 570 are controlled.

  In order to model the output modeling object 900 with the three-dimensional modeling apparatus 500 configured as described above, the control circuit 582 causes the X-axis direction moving mechanism 534 to move the head unit 530 to the right side in FIG. The modeling material is injected to the modeling stage 510 by the modeling material injection nozzle 540, and the support material is injected to the modeling stage 510 by the support material injection nozzle 550. The control circuit 582 causes the smoothing device 560 to smooth the modeling material and the support material while causing the X-axis direction moving mechanism 534 to move the head portion 530 to the left side in FIG. The first modeling material and the support material are cured. As described above, the control circuit 582 performs modeling with a constant width in the main scanning direction (X-axis direction).

  When the shaping with a certain width in the main scanning direction is finished, the control circuit 582 causes the Y-axis direction moving mechanism 536 to move the head unit 530 in the sub-operation direction (Y-axis direction), and further in the main scanning direction. Let us shape in a certain width direction.

  When the modeling of the output modeling object 900 for one layer is completed by repeating the above operation, the control circuit 582 moves the modeling stage 510 downward (Z-axis direction) to the Z-axis direction moving mechanism 520. It is lowered by the thickness of one layer of the output molded object 900 or the like. Then, the control circuit 582 causes the next layer to be formed in such a manner that the control circuit 582 is laminated on the already formed part of the output shaped article 900. By repeating the above operations, the three-dimensional modeling apparatus 500 models the output modeled object 900 and the test modeled object 800 by laminating the cured modeling material.

  FIG. 4 is a block diagram illustrating a functional configuration of the data generation device 100. As illustrated in FIG. 4, the data generation device 100 includes a measurement result reception unit 110. The measurement result receiving unit 110 receives the result of measuring the shape of the test object 800 output by the three-dimensional modeling apparatus 500 using the three-dimensional data of the test object 800 that defines the shape of the test object 800. . Here, the measurement of the shape of the test object 800 is performed by, for example, the three-dimensional scanning device 600 described above. For modeling the test model 800, the three-dimensional data of the test model 800 stored in the three-dimensional data storage unit 112 described later is used.

  In addition, the data generation device 100 includes a three-dimensional data storage unit 112. The three-dimensional data storage unit 112 stores, for example, three-dimensional data of a plurality of test objects 800. More specifically, the three-dimensional data storage unit 112 has a vertical length, a horizontal length, a thickness, a slope angle, a height of a formed convex portion, and a depth of a formed concave portion. 3D data of a plurality of test objects 800, at least one of which is different from each other, is stored. The three-dimensional data stored in the three-dimensional data storage unit 112 will be further described later.

  In addition, the data generation device 100 includes a correction data calculation unit 114. The correction data calculation unit 114 is defined by the three-dimensional data of the test model 800 stored in the three-dimensional data storage unit 112 of the measurement result of the shape of the test model 800 received by the measurement result receiving unit 110. Correction data, which is data calculated based on an error from the shape, is calculated. The correction data is data that reduces errors from the three-dimensional data of the output test model 800.

  For example, when the test model 800 is output larger than the shape defined by the three-dimensional data, the correction data calculation unit 114 corrects the test model 800 so that the test model 800 to be output next is small. Is calculated. For example, when the test model 800 is modeled thicker than the shape specified by the three-dimensional data, the correction data calculation unit 114 reduces the thickness of the test model 800 to be modeled next. Such correction data is calculated.

  In addition, the data generation device 100 includes a correction data storage unit 116. The correction data storage unit 116 stores the correction data calculated by the correction data calculation unit 114. At this time, the correction data includes at least one of the horizontal length, the vertical length, the thickness, the slope angle, the height of the formed convex portion, the depth of the formed concave portion, and the like. It is desirable that the correction data is stored in the correction data storage unit 116. Further, the correction data is stored in the correction data storage unit 116 in association with at least one of temperature and humidity in the three-dimensional modeling apparatus 500 that is information regarding the environment when the test model 800 is modeled. Is desirable.

  In addition, the data generation device 100 includes a three-dimensional data reception unit 118. The three-dimensional data reception unit 118 receives three-dimensional data that defines the shape of the output molded object 900. In this embodiment, a configuration in which the three-dimensional data receiving unit 118 receives STL (Standard Triangulated Language) data as three-dimensional data will be described as an example, but the three-dimensional data receiving unit 118 uses a three-dimensional CAD (Computer Aided Design). Data, 3D CG (computer graphics) data, 3D scanner data, and the like may be received, and the received data may be converted to STL data on the data generation device 100 side.

  Here, the STL data is data in the STL format, which is one of file formats for storing data representing a three-dimensional shape, and the three-dimensional data is converted into coordinates of a large number of triangle vertices and This is data indicated by a normal vector of a triangular surface.

  The data generation device 100 further includes a three-dimensional data correction unit 120. The three-dimensional data correction unit 120 uses the correction data calculated by the correction data calculation unit 114 and stored in the correction data storage unit 116, and the output modeling object 900 received by the three-dimensional data reception unit 118. The three-dimensional data defining the shape is corrected. At this time, the three-dimensional data correction unit 120 is similar to the shape or the like stored in the correction data storage unit 116 according to the shape or the like of the output modeling object 900 received by the three-dimensional data reception unit 118. A plurality of correction data are selected, and the three-dimensional data of the output shaped article 900 is corrected using the selected correction data.

  The data generation device 100 further includes a cross-sectional shape data generation unit 122. The cross-sectional shape data generation unit 122 generates cross-sectional shape data (lamination data) from the three-dimensional data that defines the shape of the output shaped article 900 corrected by the three-dimensional data correction unit 120. In addition, the cross-sectional shape data generation unit 122 generates cross-sectional shape data from the three-dimensional data that defines the shape of the test object 800 stored in the three-dimensional data storage unit 112.

  The data generation device 100 further includes an output instruction unit 124. The output instruction unit 124 instructs the three-dimensional modeling apparatus 500 to model the output modeling object 900 based on the cross-sectional shape data of the output modeling object 900 generated by the cross-sectional shape data generation unit 122. In addition, the output instruction unit 124 instructs the three-dimensional modeling apparatus 500 to model the test model 800 based on the cross-sectional shape data of the test model 800 generated by the cross-section data generation unit 122.

  FIG. 5 shows a first example of an error that occurs in the test molded object 800. An error from the shape defined by the three-dimensional data stored in the three-dimensional data storage unit 112 may occur in the shape of the test model 800 that is output as described above. For example, in the first example of the error, as shown in FIG. 5B, there is no error from the shape 810 of the test object 800 stored in the three-dimensional data shown in FIG. If the object 800 is sometimes modeled, as shown in FIG. 5C, the test object 800 having an error from the shape 810 of the test object 800 stored in the three-dimensional data is modeled. Sometimes.

  In the first example of the error shown in FIG. 5, the test model 800 is warped.

  FIG. 6A is a diagram illustrating a first example of an error of the test model 800 illustrated in FIG. FIG. 6B is a diagram illustrating a second example of the error of the test model 800. FIG. FIG. 6C is a diagram illustrating a third example of the error of the test molded object 800. As shown in these drawings, compared to the first example, the test model 800 of the second example has a longer lateral length, and compared to the first example, it is used for the test of the third example. The molded object 800 is thick.

  And although all of the first example of the test model 800, the second example of the test model 800, and the third example of the test model 800 are warped as errors, it is an error. The extent to which the warp occurs is different between the first example, the second example, and the third example. As described above, how the error generated by the test model 800 varies depending on the shape such as the length and thickness of the test model 800.

  FIG. 7D shows a fourth example of an error that occurs in the test molded object 800. In this example, the test model 800 is a rectangular parallelepiped, and the test model 800 is longer than the shape 810 defined by the three-dimensional data, and is expanded and output.

  FIG. 7E shows a fifth example of an error that occurs in the test molded object 800. In this example, the test object 800 has a cylindrical shape, and the test object 800 is larger than the shape 810 defined by the three-dimensional data, and is expanded and output.

  FIG. 7F shows a sixth example of an error that occurs in the test model 800. In this example, the test object 800 has a conical shape, and the test object 800 is larger than the shape 810 defined by the three-dimensional data, and is expanded and output.

  FIG. 7G shows a seventh example of an error that occurs in the test molded object 800. In this example, the test object 800 has a conical shape, and the test object 800 is smaller than the shape 810 defined by the three-dimensional data, and is output in a reduced size.

  FIG. 7H shows an eighth example of an error that occurs in the test model 800. In this example, the test object 800 is a solid body having an inclined surface 802 inclined with respect to the installation surface, and the test object 800 has an inclined surface 802 with respect to the installation surface rather than the shape 810 defined by the three-dimensional data. The inclination is small,

  As described above, the error generated in the test model 800 differs depending on the shape of the test model 800, and the error generated in the test model 800 is long in the lateral direction of the test model 800. Not only the thickness and thickness, but also the length in the vertical direction, the depth of the concave portion when the concave portion is formed, the height of the convex portion when the convex portion is formed, the inclination of the inclined surface with respect to the installation surface, etc. Depending on how it occurs Therefore, in order to measure the test object 800 and calculate correction data based on the error from the data defined by the three-dimensional data of the test object 800, a plurality of tests having different shapes are used. It is desirable to use the molded object 800 for use.

  FIG. 8 shows a first example of a test model 800 used for calculating correction data. In this example, three test objects 800 having different lengths in the horizontal direction are used to calculate correction data. Thus, by calculating a plurality of correction data using a plurality of test objects 800 having different lateral lengths, selecting appropriate correction data from the plurality of correction data. As a result, it is possible to correct the three-dimensional data of the output shaped article 900 while grasping the change in how the error occurs due to the difference in the length in the horizontal direction.

  FIG. 9 shows a second example of a test model 800 used for calculating correction data. In this example, three test objects 800 having different thicknesses are used to calculate correction data. Thus, by calculating a plurality of correction data using a plurality of test objects 800 having different thicknesses, it is possible to select appropriate correction data from the plurality of correction data. Thus, it is possible to correct the three-dimensional data of the output shaped article 900 while grasping the change in how the error occurs due to the difference in thickness.

  FIG. 10 shows a third example of the test model 800 used for calculating the correction data. In this example, three test objects 800 having different angles of the inclined surface 802 with respect to the installation surface are used for correcting the three-dimensional data of the output object 900. Thus, by calculating the correction data using the plurality of test objects 800 having different angles of the inclined surface 802 with respect to the installation surface, appropriate correction data is selected from the plurality of correction data. As a result, it is possible to correct the three-dimensional data of the output shaped object 900 while grasping the change in how the error occurs due to the difference in the angle of the inclined surface 802 with respect to the installation surface.

  FIG. 11 illustrates calculation of correction data by the correction data calculation unit 114. The correction data calculation unit 114 calculates data for correcting the three-dimensional data as correction data so as to reduce the error d from the shape 810 defined by the three-dimensional data of the test model 800.

  FIG. 12 is a flowchart illustrating a process until the output modeling object 900 is output in the three-dimensional modeling system 10. As shown in FIG. 12, in the first step S <b> 12, the data generation device 100 determines whether or not a condition for changing the correction data stored in the correction data storage unit 116 is satisfied. Here, whether or not the correction data is to be changed is, for example, the timing at which the modeling is started when the 3D modeling apparatus 500 is turned on after the 3D modeling apparatus 500 is stopped. For example, at a timing when a new modeling is started, it is determined that the correction data change condition is satisfied.

  The determination as to whether or not the correction data is to be changed is made, for example, from the point in time when the correction data stored in the correction data storage unit 116 is calculated at the time of determination at the place where the 3D modeling apparatus 500 is installed. Judgment is made based on whether environmental conditions such as temperature and humidity have changed. For example, if the environmental conditions have changed, it is determined that the conditions for changing correction data have been satisfied.

  Whether or not the correction data is to be changed is determined by, for example, whether or not the installation location of the 3D modeling apparatus 500 has changed since the correction data stored in the correction data storage unit 116 was calculated at the time of determination. (When the 3D modeling apparatus 500 has been moved), for example, when the installation location of the 3D modeling apparatus 500 changes, it is determined that the correction data change condition has been satisfied.

  Whether or not the correction data is to be changed is determined by, for example, whether or not the part of the 3D modeling apparatus 500 has been replaced since the correction data stored in the correction data storage unit 116 is calculated at the time of determination. For example, when a part of the three-dimensional modeling apparatus 500 is replaced, it is determined that the correction data change condition is satisfied.

  Whether or not the correction data is to be changed is determined by, for example, whether or not the material used for modeling has been changed from the time when the correction data stored in the correction data storage unit 116 is calculated at the time of determination. For example, when the material used for modeling is exchanged, it is determined that the condition for changing the correction data is satisfied.

  Whether or not the correction data is to be changed is determined by, for example, whether or not the maintenance of the 3D modeling apparatus 500 has been performed since the correction data stored in the correction data storage unit 116 is calculated at the time of determination. For example, when the maintenance of the three-dimensional modeling apparatus 500 is performed, it is determined that the correction data change condition is satisfied.

  If it is determined in step S12 that the correction data change condition is satisfied, the process proceeds to step S14. If it is determined that the correction data change condition is not satisfied, the process proceeds to step S102.

  In step S14, the test model 800 is output. That is, the cross-sectional shape data generation unit 122 generates cross-sectional shape data of the test modeling object 800 from the three-dimensional data of the test modeling object 800 stored in the three-dimensional data storage unit 112, and an output based on the cross-sectional shape data Is output to the 3D modeling apparatus 500, and the 3D modeling apparatus 500 outputs the test object 800.

  In step S16, which is the next step, the measurement result receiving unit 110 receives the measurement result of the test object 800 output in step S14. That is, for example, the three-dimensional scanning device 600 measures the shape of the test model 800 output in step S <b> 14, and the measured shape data of the test model 800 is transmitted to the measurement result receiving unit 110.

  In step S18, which is the next step, the correction data calculation unit 114 calculates correction data using the measurement result of the test model 800 received by the measurement result reception unit 110 in step S16.

  In step S20, which is the next step, the correction data calculated in step S18 is corrected so that the correction data stored in the correction data storage unit 116 is changed to the correction data calculated in step S18. The data is stored in the data storage unit 116.

  Step S14, step S16, step S18, and step S20 described above are repeated by the number of test objects 800 that require correction data change.

  In step S102, the three-dimensional data correction unit 120 corrects the three-dimensional data of the output modeling object 900 received by the three-dimensional data reception unit 118 using the correction data stored in the correction data storage unit 116. To do.

  In the next step S104, the output shaped article 900 is output using the three-dimensional data corrected in step S102. That is, the cross-sectional shape data generation unit 122 generates the three-dimensional data of the output modeling object 900 from the three-dimensional data corrected in step S102, and outputs the output of the output modeling object 900 using the generated three-dimensional data. The instruction unit 124 instructs the three-dimensional modeling apparatus 500, and the three-dimensional modeling apparatus 500 models the output molded article 900 according to the instruction.

  When it is confirmed that the power supply is turned off in the next step, step S202, a series of control and operation ends, and when the power supply is not turned off in step S202, the process returns to step S12, and the above description is made. Control and operation are repeated.

  Next, a three-dimensional modeling system 10 according to the second embodiment of the present invention will be described. In the first embodiment described above, the three-dimensional modeling apparatus 500 constitutes the three-dimensional modeling system 10 together with the data generation apparatus 100, and based on the data generated by the data generation apparatus 100, the test model 800 and the output The modeled object 900 was output. On the other hand, in the second embodiment, the three-dimensional modeling apparatus 500 generates three-dimensional data, and further outputs the test model 800 and the output model 900.

  FIG. 12 is a block diagram illustrating a functional configuration of a three-dimensional modeling apparatus 500 included in the three-dimensional modeling system 10 according to the second embodiment. As shown in FIG. 12, the measurement result reception unit 110, the three-dimensional data storage unit 112, the correction data calculation unit 114, the correction data storage unit 116, the three-dimensional data reception unit 118, and the three-dimensional data correction unit 120. In the first embodiment of the cross-sectional shape data generation unit 122 and the output instruction unit 124, the configuration of the data generation device 100 is included in the three-dimensional modeling apparatus 500 in the second embodiment. Yes.

  In the second embodiment, the three-dimensional modeling apparatus 500 includes an output unit 590. In response to the instruction from the output instruction unit 124, the output unit 590 outputs the test model 800 and the output model 900. The output unit 590 has all the configurations of the three-dimensional modeling apparatus 500 according to the first embodiment such as the modeling stage 510 and the head unit 530, for example.

  As described above, in the three-dimensional modeling system 10 according to the embodiment of the present invention, the measurement result of the test model 800 and the test model other than the output model 900 to be finally output. Correction data is calculated based on an error from the first three-dimensional data that defines the shape of the object 800, and the three-dimensional data of the output shaped object 900 is corrected using the calculated correction data. For this reason, the output modeling object 900 is output, the shape of the output modeling object 900 is measured, and the three-dimensional data of the output modeling object 900 is obtained based on the measurement result of measuring the shape of the output modeling object 900. Compared to the correction technique, the three-dimensional data of the output shaped object can be corrected in a short time.

  As described above, the present invention can be applied to a three-dimensional data generation apparatus, a three-dimensional modeling apparatus, a manufacturing method of a model, and a program.

DESCRIPTION OF SYMBOLS 10 ... Three-dimensional modeling system 100 ... Data generation apparatus 110 ... Measurement result reception part 112 ... Three-dimensional data storage part 114 ... Correction data calculation part 116 ... Correction data storage part DESCRIPTION OF SYMBOLS 120 ... Three-dimensional data correction | amendment part 500 ... Three-dimensional modeling apparatus 580 ... Control part 590 ... Output part 800 ... Modeling object for test 900 ... Modeling object for output

Claims (10)

A measurement result receiving unit for receiving a measurement result obtained by measuring the shape of the first modeled object output by the output device using the first three-dimensional data defining the shape of the first modeled object;
A correction data calculation unit that calculates correction data based on an error from the shape defined by the first three-dimensional data of the measurement result received by the measurement result reception unit;
A data correction unit that corrects the second three-dimensional data that defines the shape of the second object using the correction data calculated by the correction data calculation unit;
A three-dimensional data generation apparatus having   The said measurement result reception part receives at least 1 of the length of the vertical direction in a 1st molded article, the length of a horizontal direction, and a height as a measurement result according to the shape of a 1st molded article. The three-dimensional data generation device described.   The measurement result accepting unit accepts a plurality of measurement results obtained by measuring a plurality of first shaped objects each having at least one of a length in a vertical direction, a length in a horizontal direction, a height, and an angle of an inclined surface. The three-dimensional data generation device according to claim 1 or 2. A correction data storage unit for storing the correction data calculated by the correction data calculation unit;
4. The three-dimensional data generation device according to claim 1, wherein the data correction unit corrects the second three-dimensional data by using correction data stored in the correction data storage unit. 5.   The three-dimensional data modeling apparatus according to claim 1, wherein the measurement result receiving unit receives a measurement result when a predetermined condition is satisfied. A measurement result receiving unit for receiving a measurement result obtained by measuring the shape of the first modeled object output by the output device using the first three-dimensional data defining the shape of the first modeled object;
A correction data calculation unit that calculates correction data based on an error from the shape defined by the first three-dimensional data of the measurement result received by the measurement result reception unit;
A data correction unit that corrects the second three-dimensional data that defines the shape of the second object using the correction data calculated by the correction data calculation unit;
An output unit that outputs the first modeled object and outputs the second modeled object using the data corrected by the data correction unit;
A three-dimensional data generation apparatus having A measurement result receiving step for receiving a measurement result obtained by measuring the shape of the first modeled object output by the output device using the first three-dimensional data defining the shape of the first modeled object;
A correction data calculation step for calculating correction data based on an error from the shape defined by the first three-dimensional data of the measurement result received in the measurement result reception step;
A data correction step of correcting the second three-dimensional data defining the shape of the second modeled object using the correction data calculated in the correction data calculation step;
A modeling method of a modeled object having A measurement result receiving step for receiving a measurement result obtained by measuring the shape of the first modeled object output by the output device using the first three-dimensional data defining the shape of the first modeled object;
A correction data calculation step for calculating correction data based on an error from the shape defined by the first three-dimensional data of the measurement result received in the measurement result reception step;
A data correction step of correcting the second three-dimensional data defining the shape of the second modeled object using the correction data calculated in the correction data calculation step;
An output step of outputting a first modeled object and outputting a second modeled object using the data corrected in the data correction step;
A modeling method of a modeled object having A measurement result receiving step for receiving a measurement result obtained by measuring the shape of the first modeled object output by the output device using the first three-dimensional data defining the shape of the first modeled object;
A correction data calculation step for calculating correction data based on an error from the shape defined by the first three-dimensional data of the measurement result received in the measurement result reception step;
A data correction step for correcting the second three-dimensional data defining the shape of the second modeled object using the correction data calculated in the correction data calculation step;
A program that causes a computer to execute. A measurement result receiving step for receiving a measurement result obtained by measuring the shape of the first modeled object output by the output device using the first three-dimensional data defining the shape of the first modeled object;
A correction data calculation step for calculating correction data based on an error from the shape defined by the first three-dimensional data of the measurement result received in the measurement result reception step;
A data correction step for correcting the second three-dimensional data defining the shape of the second modeled object using the correction data calculated in the correction data calculation step;
An output step of outputting a first modeled object, and outputting a second modeled object using the data corrected in the first data correction step;
A program that causes a computer to execute.

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