CN111376478A - Relative coordinate calibration device for discharge port of multi-nozzle 3D printer - Google Patents

Relative coordinate calibration device for discharge port of multi-nozzle 3D printer Download PDF

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Publication number
CN111376478A
CN111376478A CN202010235051.8A CN202010235051A CN111376478A CN 111376478 A CN111376478 A CN 111376478A CN 202010235051 A CN202010235051 A CN 202010235051A CN 111376478 A CN111376478 A CN 111376478A
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CN
China
Prior art keywords
photoelectric switch
nozzle
displacement platform
printer
discharge port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010235051.8A
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Chinese (zh)
Inventor
王�琦
袁宁一
丁建宁
陆小龙
江鹏
吴王平
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Changzhou University
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Changzhou University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changzhou University filed Critical Changzhou University
Priority to CN202010235051.8A priority Critical patent/CN111376478A/en
Publication of CN111376478A publication Critical patent/CN111376478A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/205—Means for applying layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/003—Apparatus, e.g. furnaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/205—Means for applying layers
    • B29C64/209—Heads; Nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00—Data acquisition or data processing for additive manufacturing

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

The invention relates to a relative coordinate calibration device for a discharge port of a multi-nozzle 3D printer, wherein the 3D printer is provided with a printing bed, at least two nozzles arranged above the printing bed, a three-dimensional displacement table and a control system, a fixed table is arranged on the printing bed, a first photoelectric switch and a second photoelectric switch are arranged on the fixed table, the light path of the first photoelectric switch is vertical to the YZ motion plane of the three-dimensional displacement table, and the light path of the second photoelectric switch is vertical to the XZ motion plane of the three-dimensional displacement table. According to the invention, the relative position coordinates of the discharge port of the spray head in the XYZ three axial directions are measured through the movement of the first photoelectric switch and the second photoelectric switch, and then the relative position coordinates are calibrated, so that the problem of discharge port position change caused by nozzle replacement in a multi-nozzle 3D printing technology can be solved, and the forming effect is improved.

Description

Relative coordinate calibration device for discharge port of multi-nozzle 3D printer
Technical Field
The invention relates to the technical field of 3D printing, in particular to a relative coordinate calibration device for discharge ports of a multi-nozzle 3D printer.
Background
The 3D printing technology is a material molding technology based on a digital model, and can realize controllable molding of any geometric structure of materials including metal, thermoplastic resin, photosensitive resin, hydrogel, and the like. Recently, a multi-nozzle 3D printing technology is developed on the basis of a single-material 3D printing technology to meet the molding requirement of a multi-material part with a complex structure. When selecting for use many shower nozzles 3D printing technique, can appear the condition of discharge gate offset around changing the shower nozzle, this kind of skew influences the counterpoint precision of relative position between different materials easily, and then influences the shaping effect.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects in the prior art, the invention provides a relative coordinate calibration device for discharge ports of a multi-nozzle 3D printer, which is used for solving the problem of position change of the discharge ports caused by nozzle replacement in the multi-nozzle 3D printing technology and further improving the forming process of the multi-nozzle 3D printer.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a many shower nozzles 3D printer discharge gate relative coordinate calibration device, the 3D printer has the printing bed, locates two at least shower nozzles, three-dimensional displacement platform and the control system of printing bed top, the printing bed on install the fixed station, be equipped with first photoelectric switch, second photoelectric switch on the fixed station, the YZ plane of motion of the three-dimensional displacement platform of light path perpendicular to of first photoelectric switch, the XZ plane of motion of the three-dimensional displacement platform of light path perpendicular to of second photoelectric switch.
Specifically, the three-dimensional displacement table comprises a Z-axis left displacement table and a Z-axis right displacement table which are arranged at a distance, an X-axis displacement table is arranged between the bottoms of the Z-axis left displacement table and the Z-axis right displacement table, a Y-axis displacement table is arranged on the X-axis displacement table in a sliding mode, and the printing bed is arranged on the Y-axis displacement table in a sliding mode.
Furthermore, be located and slide between the Z axle left displacement platform of printing bed top and the Z axle right displacement platform and be equipped with the shower nozzle fixed plate, the printing shower nozzle include that the interval is installed first shower nozzle, second shower nozzle and third shower nozzle on the shower nozzle fixed plate.
The invention has the beneficial effects that: according to the invention, the relative position coordinates of the discharge port of the spray head in the XYZ three axial directions are measured through the movement of the first photoelectric switch and the second photoelectric switch, and then the relative position coordinates are calibrated, so that the problem of discharge port position change caused by nozzle replacement in a multi-nozzle 3D printing technology can be solved, and the forming effect is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic view of the mounting structure of the present invention.
Fig. 2 shows a positional relationship a between the first and second photoelectric switches and the nozzle discharge opening.
Fig. 3 is a positional relationship B between the first and second photoelectric switches and the nozzle discharge port.
Fig. 4 shows a positional relationship C between the first and second photoelectric switches and the nozzle discharge port.
In the figure: 1. the printing machine comprises a first photoelectric switch, a second photoelectric switch, a fixing table, a printing bed, an X-axis displacement table, a Y-axis displacement table, a Z-axis left displacement table, a Z-axis right displacement table, a spray head fixing plate, a first spray head, a second spray head, a third spray head, a first discharge hole, a second discharge hole and a third discharge hole, wherein the first photoelectric switch is 2, the second photoelectric switch is 3, the fixing table is 4, the printing bed is 5, the X-axis displacement table, the Y-axis displacement table is 6.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1, the discharge port relative coordinate calibration device of the multi-nozzle 3D printer comprises a printing bed 4, a printing nozzle, a three-dimensional displacement table and a control system.
The three-dimensional displacement platform comprises a Z-axis left displacement platform 7 and a Z-axis right displacement platform 8 which are arranged at intervals, an X-axis displacement platform 5 is arranged between the bottoms of the Z-axis left displacement platform 7 and the Z-axis right displacement platform 8, a Y-axis displacement platform 6 is arranged on the X-axis displacement platform 5 in a sliding mode, and the printing bed 4 is arranged on the Y-axis displacement platform 6 in a sliding mode.
Be located and slide between the Z axle left side displacement platform 7 of printing bed 4 top and the Z axle right side displacement platform 8 and be equipped with shower nozzle fixed plate 9, the printing shower nozzle include first shower nozzle 10, second shower nozzle 11 and the third shower nozzle 12 of interval installation on shower nozzle fixed plate 9, first shower nozzle 10 bottom has first discharge gate 13, second shower nozzle 11 bottom has second discharge gate 14, third shower nozzle 12 bottom has third discharge gate 15.
Print bed 4 on install fixed station 3, be equipped with first photoelectric switch 1 and second photoelectric switch 2 on the fixed station 3, first photoelectric switch 1 and second photoelectric switch 2 all adopt laser diffuse reflection photoelectric switch.
The laser light path emitted by the first photoelectric switch 1 is vertical to a YZ motion plane formed by the Y-axis displacement table 6, the Z-axis left displacement table 7 and the Z-axis right displacement table 8, and the laser light path emitted by the second photoelectric switch 2 is vertical to an XZ motion plane formed by the X-axis displacement table 5, the Z-axis left displacement table 7 and the Z-axis right displacement table 8.
The first photoelectric switch 1 and the second photoelectric switch 2 can be arranged at other positions of the 3D printer, and on the basis of meeting the light path condition, the movement in the XY direction relative to each spray head discharge port can be ensured.
The three-dimensional displacement table can be fixed on the fixed table 3 or other positions of the three-dimensional displacement table of the 3D printer, and the setting principle is that the three-dimensional displacement table can measure the relative displacement between the 3D printer nozzle assembly and the printing bed 4 in the XYZ three directions.
The method for calibrating the relative coordinates of the discharge hole of the spray head by using the calibration device comprises the following steps:
a. the control system firstly controls the X-axis displacement table 5 and the Y-axis displacement table 6 to drive the first photoelectric switch 1 and the second photoelectric switch 2 to move until the position relation A shown in the attached drawing 2 is reached, and the movement is stopped; then controlling a Z-axis left displacement table 7 and a Z-axis right displacement table 8 to drive a first spray head 10, a second spray head 11 and a third spray head 12 to move, stopping moving when a first discharge port 13, a second discharge port 14 and a third discharge port 15 corresponding to each spray head move to the plane where the laser light paths of the first photoelectric switch 1 and the second photoelectric switch 2 are located, and setting X-axis and Y-axis coordinates (0, 0) in a control system;
b. controlling the X-axis displacement table 5 to drive the first photoelectric switch 1 and the second photoelectric switch 2 to move, capturing the position of the first discharge hole 13 of the first spray head 10 by the first photoelectric switch 1 when the X-axis displacement table moves to the position relation B shown in the attached drawing 3, and recording the X-axis displacement X by the control system according to the operation parameters of the stepping motor1；
c. Controlling the X-axis displacement table 5 and the Y-axis displacement table 6 to drive the first photoelectric switch 1 and the second photoelectric switch 2 to move, capturing the position of a first discharge hole 13 of the first spray head 10 by the second photoelectric switch 2 when the X-axis displacement table and the Y-axis displacement table move to the position relation C shown in figure 4, and recording the Y-axis displacement Y by the control system according to the operation parameters of the stepping motor1Thereby obtaining the coordinates (x) of the first discharging hole 1310，y10)。
d. According to the above steps, the coordinates (x) of the second discharge port 14 of the second nozzle 11 can be obtained11，y11) And a third discharge port 15 coordinate (x) of the third nozzle 1212，y12)。
Based on the coordinate data of the three spray head discharge ports, the position parameters of all the spray heads are set in the 3D printer slicing software, and the calibration of the relative positions of the three spray head 3D printer discharge ports can be completed.
The embodiment does not include the three displacement sensors, but uses the motion parameters applied to the three-dimensional displacement table of the 3D printer by the control system as the position calibration information of the printing nozzle.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (3)

1. The utility model provides a many shower nozzles 3D printer discharge gate relative coordinate calibration device, the 3D printer has printing bed (4), locates two at least printing shower nozzles, three-dimensional displacement platform and the control system of printing bed (4) top, characterized by: the printing bed (4) is provided with a fixed table (3), the fixed table (3) is provided with a first photoelectric switch (1) and a second photoelectric switch (2), the light path of the first photoelectric switch (1) is perpendicular to the YZ motion plane of the three-dimensional displacement table, and the light path of the second photoelectric switch (2) is perpendicular to the XZ motion plane of the three-dimensional displacement table.
2. The discharge port relative coordinate calibration device of the multi-nozzle 3D printer as claimed in claim 1, wherein: the three-dimensional displacement platform include Z axle left displacement platform (7) and Z axle right displacement platform (8) that set up apart from each other, be equipped with X axle displacement platform (5) between Z axle left displacement platform (7) and Z axle right displacement platform (8) bottom, it is equipped with Y axle displacement platform (6) to slide on X axle displacement platform (5), printing bed (4) slide and establish on Y axle displacement platform (6).
3. The discharge port relative coordinate calibration device of the multi-nozzle 3D printer as claimed in claim 2, wherein: be located and slide between Z axle left displacement platform (7) and the Z axle right displacement platform (8) of printing bed (4) top and be equipped with shower nozzle fixed plate (9), the printing shower nozzle include that the interval is installed first shower nozzle (10), second shower nozzle (11) and third shower nozzle (12) on shower nozzle fixed plate (9).
CN202010235051.8A 2020-03-30 2020-03-30 Relative coordinate calibration device for discharge port of multi-nozzle 3D printer Pending CN111376478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010235051.8A CN111376478A (en) 2020-03-30 2020-03-30 Relative coordinate calibration device for discharge port of multi-nozzle 3D printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010235051.8A CN111376478A (en) 2020-03-30 2020-03-30 Relative coordinate calibration device for discharge port of multi-nozzle 3D printer

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004096527A2 (en) * 2003-05-01 2004-11-11 Objet Geometries Ltd. Rapid prototyping apparatus
CN104827664A (en) * 2015-01-28 2015-08-12 江汉大学 3D printer
CN104908326A (en) * 2015-06-15 2015-09-16 南通大学 High-precision workbench system for 3D printer
CN210062030U (en) * 2019-05-24 2020-02-14 杭州捷诺飞生物科技股份有限公司 3D printer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004096527A2 (en) * 2003-05-01 2004-11-11 Objet Geometries Ltd. Rapid prototyping apparatus
CN104827664A (en) * 2015-01-28 2015-08-12 江汉大学 3D printer
CN104908326A (en) * 2015-06-15 2015-09-16 南通大学 High-precision workbench system for 3D printer
CN210062030U (en) * 2019-05-24 2020-02-14 杭州捷诺飞生物科技股份有限公司 3D printer

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