CN111402408A - No waste material mould design device - Google Patents
No waste material mould design device Download PDFInfo
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- CN111402408A CN111402408A CN202010241285.3A CN202010241285A CN111402408A CN 111402408 A CN111402408 A CN 111402408A CN 202010241285 A CN202010241285 A CN 202010241285A CN 111402408 A CN111402408 A CN 111402408A
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Abstract
The invention discloses a waste-free mold design device which comprises a part six-bitmap acquisition module, a part three-dimensional model construction module, a size measurement module, a mold size generation module, a mold general assembly diagram generation module, a mold waste metering module, a mold waste utilization module and a mold material configuration module. The invention realizes the automatic design of the die and the automatic generation of the die assembly drawing, can reduce the workload of workers and improve the precision of the die design; the design concept of using waste melting and rebuilding for mold production is adopted, so that the generation of waste can be reduced or even avoided, and the full utilization of materials is realized.
Description
Technical Field
The invention relates to the field of mold design, in particular to a waste-free mold design device.
Background
At present, certain leftover materials can be produced in the machining process of the die, the materials cannot be fully utilized, the mode of manual measurement and manual drawing of a die assembly drawing is adopted in the design process of the die mostly, time and labor are wasted, and errors are brought easily.
Disclosure of Invention
In order to solve the problems, the invention provides a waste-free mold design device which can reduce or even avoid the generation of waste materials, thereby realizing the full utilization of materials.
In order to achieve the purpose, the invention adopts the technical scheme that:
a scrap-free mold design apparatus comprising:
the part six-bitmap acquisition module is used for acquiring a top view, a bottom view, a front view, a rear view, a left view and a right view of the part;
a part three-dimensional model building module, which is used for respectively obtaining the depth images of the top view, the bottom view, the front view, the rear view, the left view and the right view of the part through a kinect depth sensor, triangularizing the obtained depth images of the top view, the bottom view, the front view, the rear view, the left view and the right view of the part, then fusing all the triangulated depth images in a scale space to build a layered directed distance field, applying an integral triangulation algorithm to all voxels in the distance field to generate a convex hull covering all the voxels, constructing an isosurface by using a Marching Tetrahedra algorithm, obtaining the isosurface of the top view of the part, the isosurface of the bottom view of the part, the isosurface of the front view of the part, the isosurface of the rear view of the part, the isosurface of the left view of the part and the isosurface of the right view of the part, and finishing the isosurface of the top view of the part, Splicing the rear view isosurface, the left view isosurface and the right view isosurface of the part to realize the construction of a three-dimensional model of the part;
the size measuring module is used for calling the corresponding measuring scale to measure the size of the three-dimensional model of the part;
the mould size generating module is used for calling a corresponding mould size generating model according to the performance parameters of the mould material and the performance parameters of the part material to output the mould size;
the die assembly drawing generation module is used for generating a die assembly drawing according to the size of the die;
the mould waste material metering module is used for outputting the generated waste material size data according to the mould general assembly drawing and outputting the quality data of the waste material according to the waste material size data;
the mould waste material utilization module is used for outputting the quality data of the material required by the mould according to the mould general assembly drawing, establishing the relation between the quality data and the quality data of the waste material, and realizing the correction of the relation based on the material performance parameters of the mould material;
and the mould material configuration module is used for configuring the mould material according to the relation and the quality data of the material required by the mould.
Further, the top view, the bottom view, the front view, the rear view, the left view and the right view of the part all adopt a solid background.
Further, the dimension measurement module is used for measuring the dimension of the three-dimensional model of the part based on the length-width ratio of the connected component circumscribed rectangle.
Further, the mold size generating module outputs the mold size through the BP neural network model, and different materials correspond to different BP neural network models.
Further, the mould waste utilization module realizes the correction of the relation based on the BP neural network model, and different materials correspond to different BP neural network models.
Further, the scrap is melted and rebuilt for mold production.
The invention has the following beneficial effects:
the design concept of using waste melting and rebuilding for mold production is adopted, so that the generation of waste can be reduced or even avoided, and the full utilization of materials is realized.
The automatic design of the die and the automatic generation of the die assembly drawing are realized, and the precision of die design can be improved while the workload of workers can be reduced.
Drawings
Fig. 1 is a system block diagram of a waste-free mold designing apparatus according to an embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described in detail below with reference to examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, an embodiment of the present invention provides a waste-free mold designing apparatus, including:
the part six-bitmap acquisition module is used for acquiring a top view, a bottom view, a front view, a rear view, a left view and a right view of the part and is realized based on a camera with a snake-shaped mechanical arm, and when the part six-bitmap acquisition module is used, the snake-shaped mechanical arm drives the camera to a corresponding position according to a preset motion path to realize automatic acquisition of a target image; the top view, the bottom view, the front view, the rear view, the left view and the right view of the part all adopt pure-color backgrounds, and preferably, the pure-color backgrounds which can form sharp contrast with the self color of the part are adopted, so that the construction of a subsequent three-dimensional model of the part is facilitated to be improved;
a part three-dimensional model building module, which is used for respectively obtaining the depth images of the top view, the bottom view, the front view, the rear view, the left view and the right view of the part through a kinect depth sensor, triangularizing the obtained depth images of the top view, the bottom view, the front view, the rear view, the left view and the right view of the part, then fusing all the triangulated depth images in a scale space to build a layered directed distance field, applying an integral triangulation algorithm to all voxels in the distance field to generate a convex hull covering all the voxels, constructing an isosurface by using a Marching Tetrahedra algorithm, obtaining the isosurface of the top view of the part, the isosurface of the bottom view of the part, the isosurface of the front view of the part, the isosurface of the rear view of the part, the isosurface of the left view of the part and the isosurface of the right view of the part, and finishing the isosurface of the top view of the part, Splicing the rear view isosurface, the left view isosurface and the right view isosurface of the part to realize the construction of a three-dimensional model of the part; experiments show that the three-dimensional reconstruction of the target object is completed by using different depth images acquired by the Kinect sensor, only 48s is needed, and a very fine reconstruction effect can be obtained.
The size measurement module is used for calling the corresponding measurement scale to measure the size of the three-dimensional model of the part based on the length-width ratio of the connected component circumscribed rectangle;
the mould size generating module is used for calling a corresponding mould size generating model (BP neural network model) according to the performance parameters of the mould material and the performance parameters of the part material to output the mould size; firstly, calling a corresponding mold shape design drawing template according to a selected mold type, and then outputting corresponding mold size parameters based on a BP neural network model according to a three-dimensional model and corresponding size parameters of a part, wherein different materials correspond to different BP neural network models;
the die assembly drawing generation module is used for generating a die assembly drawing according to the size of the die; different molds correspond to different mold general assembly diagrams to generate flow templates, when the mold general assembly diagram generating flow templates are used, calling of the corresponding general assembly diagram generating flow templates is carried out according to the type of the input mold, the flow steps loaded in the flow templates are generated based on the general assembly diagrams, and the mold general assembly diagrams are generated according to the size parameters of the molds;
the mould waste material metering module is used for outputting the generated waste material size data according to the mould general assembly drawing and outputting the quality data of the waste material according to the waste material size data;
the mould waste material utilization module is used for outputting the quality data of the material required by the mould according to the mould general assembly drawing, establishing the relation between the quality data and the quality data of the waste material, and realizing the correction of the relation based on the BP neural network model based on the material performance parameters of the mould material; different materials correspond to different BP neural network models;
the mould material configuration module is used for configuring the mould material according to the relation and the quality data of the material required by the mould; melting and rebuilding the waste materials for producing the mould;
and the central processing unit is used for coordinating the work of the modules.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (6)
1. The utility model provides a no waste material mould design device which characterized in that: the method comprises the following steps:
the part six-bitmap acquisition module is used for acquiring a top view, a bottom view, a front view, a rear view, a left view and a right view of the part;
a part three-dimensional model building module, which is used for respectively obtaining the depth images of the top view, the bottom view, the front view, the rear view, the left view and the right view of the part through a kinect depth sensor, triangularizing the obtained depth images of the top view, the bottom view, the front view, the rear view, the left view and the right view of the part, then fusing all the triangulated depth images in a scale space to build a layered directed distance field, applying an integral triangulation algorithm to all voxels in the distance field to generate a convex hull covering all the voxels, constructing an isosurface by using a Marching Tetrahedra algorithm, obtaining the isosurface of the top view of the part, the isosurface of the bottom view of the part, the isosurface of the front view of the part, the isosurface of the rear view of the part, the isosurface of the left view of the part and the isosurface of the right view of the part, and finishing the isosurface of the top view of the part, Splicing the rear view isosurface, the left view isosurface and the right view isosurface of the part to realize the construction of a three-dimensional model of the part;
the size measuring module is used for calling the corresponding measuring scale to measure the size of the three-dimensional model of the part;
the mould size generating module is used for calling a corresponding mould size generating model according to the performance parameters of the mould material and the performance parameters of the part material to output the mould size;
the die assembly drawing generation module is used for generating a die assembly drawing according to the size of the die;
the mould waste material metering module is used for outputting the generated waste material size data according to the mould general assembly drawing and outputting the quality data of the waste material according to the waste material size data;
the mould waste material utilization module is used for outputting the quality data of the material required by the mould according to the mould general assembly drawing, establishing the relation between the quality data and the quality data of the waste material, and realizing the correction of the relation based on the material performance parameters of the mould material;
and the mould material configuration module is used for configuring the mould material according to the relation and the quality data of the material required by the mould.
2. The scrap-free mold design apparatus of claim 1, wherein: the top view, the bottom view, the front view, the rear view, the left view and the right view of the part all adopt a solid background.
3. The scrap-free mold design apparatus of claim 1, wherein: and the dimension measurement module is used for measuring the dimension of the three-dimensional model of the part based on the length-width ratio of the rectangle circumscribed by the connected component.
4. The scrap-free mold design apparatus of claim 1, wherein: the mold size generating module outputs the mold size through the BP neural network model, and different materials correspond to different BP neural network models.
5. The scrap-free mold design apparatus of claim 1, wherein: the mould waste material utilization module realizes the correction of the relation based on the BP neural network model, and different materials correspond to different BP neural network models.
6. The scrap-free mold design apparatus of claim 1, wherein: and melting and rebuilding the waste materials for producing the mould.
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| CN202010241285.3A CN111402408B (en) | 2020-03-31 | 2020-03-31 | No waste material mould design device |
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| CN202010241285.3A CN111402408B (en) | 2020-03-31 | 2020-03-31 | No waste material mould design device |
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