CN212603446U

CN212603446U - 3D prints supplementary detection device

Info

Publication number: CN212603446U
Application number: CN202020155301.2U
Authority: CN
Inventors: 吴俊�; 韦应千; 郑子健; 陈云
Original assignee: Hangzhou Himalaya Information Technology Co ltd
Current assignee: Hangzhou Himalaya Information Technology Co ltd
Priority date: 2020-02-07
Filing date: 2020-02-07
Publication date: 2021-02-26
Anticipated expiration: 2030-02-07

Abstract

The utility model discloses a 3D prints auxiliary detection device, including grating three-dimensional scanner, screw motor, scanner pillar, printing bottom plate fagging and print platform, print platform passes through the screw motor and installs in printing bottom plate fagging top, the screw motor is fixed to be set up in printing bottom plate fagging department, and this screw motor is connected with print platform through the drive nut that sets up in screw motor output shaft department to realize that the screw motor drives print platform and goes up and down; the plurality of scanner struts are uniformly distributed around the printing platform, and the grating three-dimensional scanner is installed at each scanner strut, so that the utility model can detect a printing forming space once when the printer is opened, and ensure that no other objects exist in the forming space; in addition, the scanning device can also assist in leveling when the printing platform is leveled.

Description

3D prints supplementary detection device

Technical Field

The utility model belongs to the technical field of a 3D printing technique and specifically relates to a 3D prints supplementary detection device.

Background

3D printers on the market at present have no detection device for printing models; sometimes, due to irregular operation of an operator (such as directly starting a printer to print a model), the operator does not notice that a model or other foreign matters exist on a printing bottom plate, so that a printing head ascends along a Z axis to collide with the model, and the 3D printer is damaged.

Disclosure of Invention

The utility model discloses an aim at solving the problem among the prior art, provide a 3D prints supplementary detection device, can make the problem that the solution background art provided.

The utility model provides a technical scheme that its technical problem adopted is: the grating three-dimensional scanner comprises a grating three-dimensional scanner, a screw motor, a scanner strut, a printing bottom plate supporting plate and a printing platform, wherein the printing platform is arranged above the printing bottom plate supporting plate through the screw motor; the scanner pillar is equipped with a plurality of, and evenly arranges around print platform, grating three-dimensional scanner is all installed to each scanner pillar department.

Further setting the following steps: the grating three-dimensional scanner comprises a white light scanner shell, a CCD (charge coupled device) camera and a grating projector, wherein the CCD camera and the grating projector are arranged on the white light scanner shell, the grating projector is arranged in the middle of the white light scanner shell, the CCD cameras are two in number and are respectively arranged on the left side and the right side of the grating projector

The method is further provided with the following steps: the scanner pillar quantity is 4, and corresponds and sets up in print platform four corners department

The method is further provided with the following steps: the grating three-dimensional scanner is arranged towards the printing platform.

The utility model has the advantages that: the device can detect the one-time printing forming space when the printer is opened, and ensure that no other objects exist in the forming space; in addition, the scanning device can also assist in leveling when the printing platform is leveled; the scanning precision of the white light three-dimensional scanner can reach 0.03mm at most; after the scanning device scans the amplitude of the platform surface, the flatness and the highest point on the platform are judged and known, then the platform is driven to ascend to enable the highest point to be away from the printing head to a position (such as 1mm) suitable for printing, and then an operator is prompted to adjust the height, or the platform is arranged on a platform provided with a 102 screw motor, and the screw motor can be driven to adjust the platform so as to achieve the purpose of leveling;

in addition, each layer of high material (such as 0.4mm) is stacked on the printing model, the printing result is scanned and fed back, the scanning speed is extremely high and only needs about 1 second, so that the printer can continue to print only by staying for about 1 second after printing one layer, and the printing time is hardly influenced; when the printer prints the next layer, the scanner transmits the result to the internal program for operation and comparison; for example, the accuracy of the Z-axis downward movement height can be obtained by comparing with the result of the previous layer of printing (the accuracy of the model is influenced by more and less movements, the problem that whether the Z-axis is out of step can be fed back, and the like), whether the model moves on a printing platform or not, and the like; for example, the specific precision of the printing model can be known by comparing with a source file, the problems of fault layers and the like can be found in time and fed back to a program to stop printing, and the consumption of consumables is reduced.

Drawings

Fig. 1 is an overall schematic view of embodiment 1 of the present invention;

fig. 2 is a schematic bottom perspective view of embodiment 1 of the present invention;

fig. 3 is a schematic structural view of a grating three-dimensional scanner according to embodiment 1 of the present invention;

in the figure, 101 raster three-dimensional scanner, 102 screw motor, 103 scanner support, 104 base support plate, 105 printing platform, 201 white light scanner shell, 202 CCD camera, 203 raster projector.

Detailed Description

The invention will be further described with reference to the accompanying drawings:

the first embodiment is as follows: as shown in fig. 1, 2 and 3, the embodiment includes a grating three-dimensional scanner 101, a screw motor 102, a scanner pillar 103, a printing bottom supporting plate 104 and a printing platform 105, the printing platform is installed above the printing bottom supporting plate through the screw motor, the screw motor is fixedly arranged at the printing bottom supporting plate, and the screw motor is connected with the printing platform through a driving nut arranged at an output shaft of the screw motor, so that the printing platform is driven by the screw motor to lift; the utility model discloses a printing platform, including scanner pillar, scanning platform, grating three-dimensional scanning appearance, CCD camera, scanning platform.

The printing bottom plate supporting plate can also be a whole block of plate with a large width; the grating projector can project grating stripes with periodically changed thickness (phase) to the surface of an object, two CCD cameras arranged at a certain included angle read grating stripe images which are modulated by the surface of the object and deformed into a computer, a data processing system of the scanner superposes and calculates the obtained grating stripe images through a triangle method and a phase method, and finally a three-dimensional coordinate point set, namely point clouds, of a part of areas of the surface of the object is output, and the point clouds of different areas of the surface of the object can be aligned through the same-name points.

The distribution of the white light scanners is generally 4 (at least 3) uniformly, so that the results scanned in all directions can be calculated and spliced more accurately. The scanner is prohibited to move after being installed and needs to be calibrated.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. The utility model provides a 3D prints supplementary detection device which characterized by: the grating three-dimensional scanner comprises a grating three-dimensional scanner, a screw motor, a scanner strut, a printing bottom plate supporting plate and a printing platform, wherein the printing platform is arranged above the printing bottom plate supporting plate through the screw motor; the scanner pillar is equipped with a plurality of, and evenly arranges around print platform, grating three-dimensional scanner is all installed to each scanner pillar department.

2. The 3D printing auxiliary detection device according to claim 1, wherein: the grating three-dimensional scanner comprises a white light scanner shell, and a CCD (charge coupled device) camera and a grating projector which are arranged on the white light scanner shell, wherein the grating projector is arranged in the middle of the white light scanner shell, the CCD camera is two in number and is respectively arranged on the left side and the right side of the grating projector.

3. The 3D printing auxiliary detection device according to claim 1, wherein: the scanner pillar quantity is 4, and corresponds and set up in print platform four corners department.

4. The 3D printing auxiliary detection device according to claim 1, wherein: the grating three-dimensional scanner is arranged towards the printing platform.