CN106799917B - Method for automatically matching 3D laser inner carving with model and glass shape and size - Google Patents
Method for automatically matching 3D laser inner carving with model and glass shape and size Download PDFInfo
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- CN106799917B CN106799917B CN201611271666.6A CN201611271666A CN106799917B CN 106799917 B CN106799917 B CN 106799917B CN 201611271666 A CN201611271666 A CN 201611271666A CN 106799917 B CN106799917 B CN 106799917B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/22—Removing surface-material, e.g. by engraving, by etching
- B44C1/228—Removing surface-material, e.g. by engraving, by etching by laser radiation
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Abstract
The invention relates to a method for automatically matching a 3D laser inner carving model with the shape and size of glass, wherein at least one three-dimensional preprocessing frame for receiving the 3D model is built in three-dimensional inner carving software; scaling an externally acquired 3D model into a three-dimensional preprocessing frame in an equal proportion; setting X, Y, Z point cloud distance of each 3D model and point cloud coordinates of the whole 3D model in a three-dimensional preprocessing frame; carrying out three-dimensional sectioning on the 3D model to form a 3D coordinate point position graph; presetting the positions of the 3D coordinate point position graph in the preprocessing frames with different shapes, and storing the positions into different position parameters; before carving, the three-dimensional internal carving software reminds crystal or glass with different shapes to be selected, after the crystal or glass is selected, the glass with the corresponding shape is placed, and during carving, a laser focus point or the glass moves according to preset position parameters and is carved; in operation, after the glass with the corresponding shape is placed, the 3D model image can be carved in the glass without exceeding the glass boundary.
Description
Technical Field
The invention relates to a 3D laser inner carving based on mobile terminal data acquisition, in particular to a method for automatically matching a model and the size of glass in the 3D laser inner carving.
Background
In the prior art, high-precision carving is often carried out at any position in glass by utilizing laser; however, the laser inner carving equipment is not intelligent enough, can only carve the preset image or the image provided by the client, and needs to adjust various parameters before carving, so that the laser inner carving equipment is very inconvenient, not only is the carving efficiency not high, but also is difficult to meet the personalized carving requirements of people.
The individualized demand includes the selection to glass or quartzy shape again, and most glass selects cuboid or square shape for use among the prior art, if select pyramid or circular, oval glass shape for use, then just need print the parameter setting of object, but all adjust the setting at every turn, not only very troublesome, sculpture efficiency greatly reduced sets up the inaccurate condition that can cause the image to exceed glass border or lack moreover, causes the material waste.
Disclosure of Invention
The invention overcomes the defects in the prior art, provides a method for automatically sizing and shaping the glass of the 3D model of the image acquired by the mobile terminal in real time, and can print the complete 3D model image in the glass by selecting the corresponding shape and placing the glass with the corresponding shape when printing.
The technical scheme of the invention is realized as follows:
a method for realizing automatic matching of a 3D laser inner carving model and the size of a glass shape is characterized in that three-dimensional inner carving software runs on a control host of laser inner carving equipment, at least one three-dimensional preprocessing frame for receiving the 3D model is built in the three-dimensional inner carving software, and the size of the three-dimensional preprocessing frame is preset; scaling an externally acquired 3D model into a three-dimensional preprocessing frame in an equal proportion; setting X, Y, Z point cloud distance of each 3D model and point cloud coordinates of the whole 3D model in a three-dimensional preprocessing frame; after contrast adjustment, carrying out three-dimensional sectioning on the 3D model to form a 3D coordinate point figure; presetting the positions of the 3D coordinate point position graph in the preprocessing frames with different shapes, and storing the positions into different position parameters; before carving, the three-dimensional inner carving software reminds the user to select the glass with different shapes, after the glass is selected, the glass with the corresponding shape is placed, and during carving, the laser focus point or the glass moves according to preset position parameters and is carved.
In the past, the three-dimensional inner carving is single, cuboid or cube glass is used for carving, various parameter settings are required before carving, and an image is carved at a proper position in the glass, so that the efficiency is reduced; in order to further meet the personalized requirements, the carving efficiency is improved, and the 3D model can be automatically adapted and carved in glass with different shapes such as a cone, a sphere and the like; by adopting the technical scheme, the problem of automatic data conversion of laser inner carving equipment and mobile terminal big data acquisition 3D modeling is solved, and a laser focus point forms a micro-explosion point for each point for next laser printing, so that the carving of a whole 3D model image is completed.
When the three-dimensional engraving machine is operated, the shape of glass to be engraved, such as a cone, is selected on the control host, the three-dimensional inner engraving software calls corresponding position parameters, and after the glass with the cone shape is placed, the 3D model image can be engraved in the glass without exceeding the boundary of the glass.
Preferably, the external part refers to a cloud server.
Preferably, the X, Y, Z point cloud distance of the 3D model, i.e. the distance between a point and a point, is 0.01-0.15 mm. Preferably 0.1mm, X, Y, Z coordinates are assigned to each position point of the 3D model, and such an interval is set to avoid that the interval between the points is too small, and the laser focus point is slightly exploded to form a cross, which causes an engraving flaw.
Preferably, the position parameters refer to the size and offset of the 3D coordinate point position pattern in the preprocessing frames with different shapes. By means of the setting, the 3D coordinate point position graph can be engraved in the proper position of the glass, and the situation that the 3D coordinate point position graph is lack of or exceeds the glass boundary can not occur.
Preferably, the glass is placed on an X-axis moving table or a Y-axis moving table of laser engraving equipment, the X-axis moving table is connected with the Y-axis moving table, a high-speed digital galvanometer system controlled by a control host is arranged above the glass, laser of a laser source is emitted to the high-speed digital galvanometer system, and the control host controls and moves the X-axis moving table or the Y-axis moving table to move the glass to the position below a laser focusing point for engraving.
When the image is thick, in order to engrave the three-dimensional image with high quality in the Z-axis direction, the laser engraving machine preferably further comprises a Z-axis moving table, wherein the Z-axis moving table is connected with the X-axis moving table and the Y-axis moving table, the control host controls and moves the X-axis moving table, the Y-axis moving table and the Z-axis moving table to change the spatial position of the glass, and the laser focusing point engraves different parts of the glass by utilizing the change of the spatial position of the glass.
Preferably, in the engraving process, the coordinate data of each engraved three-dimensional point position figure and the number of engraved points are memorized; after the power is cut off or the engraving system is restarted, the number of the completed rough engraving points can be manually input, and the high-speed galvanometer moves to the memorized coordinate position where the engraving is located last time so as to enter the next engraving.
The principle and the beneficial effects of the invention adopting the technical scheme are as follows:
the invention can acquire image data of people, any object or scene in real time through the mobile terminal in advance, send the image data to the cloud server through the network for 3D modeling processing, download the image data to the cloud server through the control host for 3D point cloud image processing, and then perform instant engraving and printing through the laser inner engraving equipment.
Furthermore, the invention can acquire the portrait through the mobile terminal camera, generate the personalized 3D figure image through the mobile terminal APP, form the order after being processed by the cloud server, select or set the parameters after being downloaded by the control host, control the laser inner carving equipment to process the read data, and finally form the exquisite personalized gift.
The method can automatically scale, shift, rotate, cut and the like the 3D model data according to the size and shape of the crystal material specified by the order, so that the 3D model data can automatically adapt to the specified crystal or glass material; even if the 3D model can automatically adapt to and engrave in different shapes of glass or crystal, such as cones, spheres, etc., without going beyond the boundary.
When the three-dimensional engraving machine is operated, the shape of glass to be engraved, such as a cone, is selected on the control host, the three-dimensional inner engraving software calls corresponding position parameters, and after the glass with the cone shape is placed, the 3D model image can be engraved in the glass without exceeding the boundary of the glass.
The control host of the invention can also automatically perform a series of image enhancement, such as brightness, contrast, sharpness and the like, on the acquired 3D image data according to the preset parameters.
Drawings
FIG. 1 is a schematic perspective view of a laser engraving apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of another embodiment of the laser engraving apparatus of the present invention;
FIG. 3 is a schematic diagram illustrating an internal planar structure of the laser engraving apparatus according to the embodiment of the present invention;
FIG. 4 is a schematic diagram of a module connection structure of the 3D laser engraving system in the embodiment;
FIG. 5 is a schematic diagram of an internal three-dimensional structure of the laser engraving device in the embodiment;
FIG. 6 is a schematic view of another angle of the laser engraving device in the embodiment;
fig. 7 is a flow chart of the operation of the present invention.
Detailed Description
The specific embodiment of the invention is as follows:
example (b):
A3D laser inner carving method based on mobile terminal data acquisition comprises the following steps:
firstly, a mobile terminal shoots a shot object at multiple angles, and uploads collected planar image data at multiple angles to a cloud server running a three-dimensional big data processing platform through a wireless network; the mobile terminal is preferably a smart phone with a lens; in general, the mobile terminal is fixed, and the shooting object rotates back and forth opposite to the camera of the mobile terminal, so that the camera can acquire plane images of the shooting object at various angles; for example, in a self-photographing mode of the smart phone, the face of a person rotates left and right opposite to the lens, so that plane images of all parts of the face are collected into the smart phone through the lens and then collected through a related APP of the smart phone;
secondly, the cloud server processes the plane images of all angles into a 3D model; specifically, at least one 3D module is built in a cloud server, each plane image is subjected to stereogram at a position corresponding to the 3D module according to the displayed angle, and different planes are spliced to form a 3D model;
the 3D module can be a three-dimensional face frame, and a plurality of blank areas are reserved; each plane image is pasted on a corresponding area position to form a 3D model;
furthermore, at least one 3D template is preset in the cloud server, and the planar images with different angles are combined with the 3D template selected by the user to form a 3D model after being subjected to jigsaw on the 3D module. The 3D template can be various preset cartoon images, such as cartoon images with a hat and an upper half body and only left head parts, the 3D module is used for splicing the pictures and filling the head vacant areas, and the 3D template and the corresponding cartoon images are combined to form a 3D model; furthermore, a preset frame is reserved on the 3D template; and the planar images at different angles are spliced on the 3D module after being subjected to contrast and brightness adjustment, and then the planar images are moved to a preset frame for zooming or the position of the 3D module on the preset frame is adjusted until the planar images and the 3D template are integrated into a 3D model.
Thirdly, the control host acquires the 3D model from the cloud server and converts the 3D model into a 3D coordinate point graph; as shown in fig. 7, specifically, a three-dimensional inner engraving software is run on a control host of the laser inner engraving device, at least one three-dimensional preprocessing frame for receiving the 3D model is built in the three-dimensional inner engraving software, and the size of the three-dimensional preprocessing frame can be preset; scaling the 3D model obtained from the cloud server into a three-dimensional preprocessing frame in an equal proportion; setting X, Y, Z point cloud distance of each 3D model and point cloud coordinates of the whole 3D model in a three-dimensional preprocessing frame; after contrast adjustment, carrying out three-dimensional sectioning on the 3D model to form a 3D coordinate point figure; the X, Y, Z point cloud distance, i.e. the distance from a point to a point, of the 3D model is preferably 0.1 mm.
Fourthly, the control host controls the laser inner carving equipment to carve in the glass according to the 3D coordinate point position graph; specifically, the positions of the 3D coordinate point position graph in the preprocessing frames with different shapes are preset and stored into different position parameters; before carving, the three-dimensional internal carving software reminds the crystal or glass with different shapes to be selected, after the crystal or glass is selected, the glass with the corresponding shape is placed, and during carving, the laser focus point or the glass moves according to preset position parameters and is carved. The position parameters refer to the size and the offset of the 3D coordinate point position graph in the preprocessing frames with different shapes.
During specific operation, glass is placed on an X-axis moving table or a Y-axis moving table of laser inner carving equipment, the X-axis moving table is connected with the Y-axis moving table, a high-speed digital mirror vibrating system controlled by a control host is arranged above the glass, laser of a laser source is irradiated to the high-speed digital mirror vibrating system, and meanwhile, the control host controls the X-axis moving table or the Y-axis moving table to move to the position below a laser focusing point for carving.
The laser engraving machine further comprises a Z-axis moving table, the Z-axis moving table is connected with the X-axis moving table and the Y-axis moving table, the X-axis moving table, the Y-axis moving table and the Z-axis moving table are controlled and moved by the control host to change the spatial position of the glass, and the laser focusing point engraves different parts of the glass by using the change of the spatial position of the glass.
In the engraving process, memorizing the coordinate data of each engraved three-dimensional point figure and the number of engraved points; after the power is cut off or the engraving system is restarted, the number of the completed rough engraving points can be manually input, and the high-speed galvanometer moves to the memorized coordinate position where the engraving is located last time so as to enter the next engraving.
A3D laser inner carving system based on mobile terminal data acquisition is shown in FIG. 4 and comprises:
the mobile terminal is used for acquiring image data of a shot object;
the cloud server is in wireless connection with the mobile terminal and is used for receiving image data collected by the mobile terminal and processing the image data into a 3D model;
the control host is in wireless connection with the cloud server, acquires the 3D model from the cloud server, and performs scaling, deviation, rotation or contrast adjustment processing on the 3D model;
and the laser inner carving equipment is connected with the control host and used for receiving the control of the control host and carving the processed 3D model on the glass.
As shown in fig. 1, 2, 3, 5, and 6, the laser engraving device includes a support 1, a glass placing platform 2, a mobile positioning mechanism 3, and a high-speed digital galvanometer system 4, wherein a host control 7 is integrated on the support 1, the high-speed digital galvanometer system 4 is disposed in the support 1, the mobile positioning mechanism 3 includes an X-direction mobile station 5 and a Y-direction mobile station 6, the X-direction mobile station 5 is connected with the Y-direction mobile station 6, the mobile positioning mechanism 3 is connected with the support 1 and is located below the high-speed digital galvanometer system 4, and the glass placing platform 2 is disposed on the X-direction mobile station 5; the control host 7 controls the mobile positioning mechanism 3 to drive the glass to move so as to change the space position of the glass, and the laser focus point is made to penetrate into the glass for carving.
The mobile positioning mechanism 3 also comprises a Z-direction mobile station 8, and the Z-direction mobile station 8 is connected with the Y-direction mobile station 6; the high-speed digital galvanometer system 4 comprises a high-speed galvanometer 9, a reflector 10 and a laser source 11, wherein laser emitted by the laser source 11 is reflected to the high-speed galvanometer 9 through the reflector 10 and then deflected and emitted by the high-speed galvanometer 9.
Furthermore, the X-direction moving table 5, the Y-direction moving table 6 and the Z-direction moving table 8 are respectively connected with a driving mechanism, the driving mechanisms are respectively formed by connecting a screw-nut pair and a servo motor, and any one of the servo motors is connected with a controller.
During specific operation, firstly, a portrait is collected through a mobile terminal camera, a personalized 3D figure image is generated through a mobile terminal APP, an order is formed after the image is processed through a cloud server, parameters are selected or set after the image is downloaded through a control host, after glass of a required carving shape is placed, laser inner carving equipment is controlled to process read data, and finally a fine personalized gift is formed.
Claims (6)
1. The utility model provides a method for realizing 3D laser inner carving automatic matching model and glass shape and size, which is characterized in that: the method comprises the following steps that three-dimensional inner carving software runs on a control host of laser inner carving equipment, at least one three-dimensional preprocessing frame used for receiving a 3D model is built in the three-dimensional inner carving software, and the size of the three-dimensional preprocessing frame is preset; at least one 3D module is built in a cloud server, when shooting objects, the plane image of each shooting object is subjected to three-dimensional mapping at the position corresponding to the 3D module according to the displayed angle, and different planes are spliced; at least one 3D template is also preset in the cloud server, the 3D template is a preset cartoon image, and the planar images with different angles are combined with the 3D template selected in advance to form a 3D model after being jigsaw on the 3D module; scaling the 3D model obtained from the cloud server into a three-dimensional preprocessing frame in an equal proportion; setting X, Y, Z point cloud distance of each 3D model and point cloud coordinates of the whole 3D model in a three-dimensional preprocessing frame; after contrast adjustment, carrying out three-dimensional sectioning on the 3D model to form a 3D coordinate point figure; presetting the positions of the 3D coordinate point position graph in the preprocessing frames with different shapes, and storing the positions into different position parameters; before carving, the three-dimensional inner carving software reminds the user to select the glass with different shapes, after the glass is selected, the glass with the corresponding shape is placed, and during carving, the laser focus point or the glass moves according to preset position parameters and is carved.
2. The method of claim 1, wherein: the X, Y, Z point cloud distance of the 3D model, namely the distance between a point and a point is 0.01-0.15 mm.
3. The method of claim 1, wherein: the position parameters refer to the size and the offset of the 3D coordinate point position graph in the preprocessing frames with different shapes.
4. The method of claim 1, further comprising: glass is placed on an X-axis moving table or a Y-axis moving table of laser inner carving equipment, the X-axis moving table is connected with the Y-axis moving table, a high-speed digital galvanometer system controlled by a control host is arranged above the glass, laser of a laser source is emitted to the high-speed digital galvanometer system, and meanwhile the control host controls and moves the X-axis moving table or the Y-axis moving table to enable the glass to move below a laser focusing point for carving.
5. The method of claim 1, further comprising: the laser engraving machine further comprises a Z-axis moving table, the Z-axis moving table is connected with the X-axis moving table and the Y-axis moving table, the X-axis moving table, the Y-axis moving table and the Z-axis moving table are controlled and moved by the control host to change the spatial position of the glass, and the laser focusing point engraves different parts of the glass by using the change of the spatial position of the glass.
6. The method of claim 1, further comprising: in the engraving process, memorizing the coordinate data of each engraved three-dimensional point figure and the number of engraved points; after the power is cut off or the engraving system is restarted, the number of the completed engraving points can be manually input, and the high-speed galvanometer moves to the memorized coordinate position where the engraving is located last time so as to enter the next engraving.
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| CN201611271666.6A CN106799917B (en) | 2016-12-10 | 2016-12-10 | Method for automatically matching 3D laser inner carving with model and glass shape and size |
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| CN201611271666.6A CN106799917B (en) | 2016-12-10 | 2016-12-10 | Method for automatically matching 3D laser inner carving with model and glass shape and size |
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| CN106799917B true CN106799917B (en) | 2020-04-10 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1546329A (en) * | 2003-12-10 | 2004-11-17 | 群 夏 | Method for conducting inside painting and sculpture inside optical glass |
| CA2380076C (en) * | 1999-07-27 | 2006-05-09 | Foba-North America Laser Systems I., Llc | Method of three dimensional laser engraving |
| CN104924825A (en) * | 2015-05-17 | 2015-09-23 | 义乌市圣石激光技术有限公司 | Method and device for engraving three-dimensional patterns in glass |
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- 2016-12-10 CN CN201611271666.6A patent/CN106799917B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2380076C (en) * | 1999-07-27 | 2006-05-09 | Foba-North America Laser Systems I., Llc | Method of three dimensional laser engraving |
| CN1546329A (en) * | 2003-12-10 | 2004-11-17 | 群 夏 | Method for conducting inside painting and sculpture inside optical glass |
| CN104924825A (en) * | 2015-05-17 | 2015-09-23 | 义乌市圣石激光技术有限公司 | Method and device for engraving three-dimensional patterns in glass |
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