CN116587606A - Conformal circuit printer and printer space coordinate mapping method - Google Patents

Conformal circuit printer and printer space coordinate mapping method Download PDF

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Publication number
CN116587606A
CN116587606A CN202310747579.7A CN202310747579A CN116587606A CN 116587606 A CN116587606 A CN 116587606A CN 202310747579 A CN202310747579 A CN 202310747579A CN 116587606 A CN116587606 A CN 116587606A
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CN
China
Prior art keywords
printer
workpiece
axis
scanner
contact probe
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Pending
Application number
CN202310747579.7A
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Chinese (zh)
Inventor
朱文杰
张金权
汪海波
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Beijing Dream Ink Technology Co Ltd
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Beijing Dream Ink Technology Co Ltd
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Application filed by Beijing Dream Ink Technology Co Ltd filed Critical Beijing Dream Ink Technology Co Ltd
Priority to CN202310747579.7A priority Critical patent/CN116587606A/en
Publication of CN116587606A publication Critical patent/CN116587606A/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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

The application discloses a conformal circuit printer and a printer space coordinate mapping method, and relates to the technical field of printing. The conformal circuit printer includes: the device comprises a machine tool, a printing head, a scanner, a contact probe, an origin calibration assembly, a workpiece seat for bearing a workpiece and a plurality of positioning reference balls, wherein the printing head, the scanner, the contact probe and the origin calibration assembly are arranged on the machine tool; the scanner, the contact probe, the origin calibration assembly and the reference sphere are at least configured to cooperatively determine an actual coordinate relationship between the printhead and the workpiece. The conformal circuit printer in the embodiment of the disclosure realizes measurement and detection of printer space coordinates through the scanner, the contact probe, the origin calibration assembly and the reference ball, can effectively reduce errors in the processes of assembling and operating movement of the printer, and can accurately and reliably determine the coordinate relationship between the printing head and the workpiece.

Description

Conformal circuit printer and printer space coordinate mapping method
Technical Field
The application belongs to the technical field of printing, and particularly relates to a conformal circuit printer and a printer space coordinate mapping method.
Background
Circuits (circuit boards) are important electronic components, and almost all electronic devices are independent of the circuit boards, and circuits are used for electric interconnection between electronic watches, general-purpose computers, televisions, supercomputers, communication devices, military weapon systems and the like. In order to meet the continuous miniaturization requirement of electronic devices, many manufacturers start conformal electronic technology in which circuits are directly arranged on the surface of a structural member, and generally, integrated manufacturing of structural workpieces and conformal circuits is realized by stacking slices of multiple materials layer by layer, but for structural members with high precision and complexity, the quality and efficiency of 3D printing are difficult to meet the industrial requirement.
Compared with the traditional 3D printing, the surface conformal printing is free from processing and manufacturing of structural components, and circuits can be directly printed on the structural components, so that the manufacturing requirements of the structural components with high precision and complexity are avoided, and the manufacturing efficiency can be greatly improved. At present, a conformal circuit printer mainly relies on a scanner to acquire the coordinate relationship between a workpiece and a machine tool, and the space coordinate relationship between the printing head and the workpiece can be obtained after conversion by measuring the deflection of a known printing head relative to the machine tool in the process of installation, so that a printing track is generated, but the accuracy cannot be ensured through the manually measured position relationship between the machine tool and the printing head; in addition, because the printing head and/or the workpiece need to carry out multi-axis linkage along with the motion mechanism, motion errors can also be generated to cause interference, and particularly, when aiming at the micro-nano precision requirement, the printing stability and reliability are greatly affected.
Disclosure of Invention
Accordingly, an objective of the present application is to provide a conformal circuit printer to solve the problem of poor reliability of positioning spatial coordinates of the printer in the prior art.
In some demonstrative embodiments, the conformal circuit printer includes: the device comprises a machine tool, a printing head, a scanner, a contact probe, an origin calibration assembly, a workpiece seat for bearing a workpiece and a plurality of positioning reference balls, wherein the printing head, the scanner, the contact probe and the origin calibration assembly are arranged on the machine tool; the scanner, the contact probe, the origin calibration assembly and the reference sphere are at least configured to cooperatively determine an actual coordinate relationship between the printhead and the workpiece.
In some alternative embodiments, the reference balls are not less than 3 in number and are distributed around multiple sides of the workpiece holder.
In some alternative embodiments, the reference balls are 6 in number and are uniformly distributed on both sides of the workpiece seat.
In some alternative embodiments, the contact probe is a conductive probe and the reference ball is a conductive material; and a signal trigger loop is formed after the contact probe is contacted with the reference ball.
In some alternative embodiments, the scanner employs one or more combinations of a photographic scanner, a laser scanner, and an ultrasound scanner.
In some alternative embodiments, the origin calibration assembly comprises: at least 5 microswitches; wherein, 2 first micro switches are oppositely arranged in the X-axis direction of the printer and used for calibrating the X-axis origin of the target component; wherein 2 second micro switches are oppositely arranged in the Y-axis direction of the printer and used for calibrating the Y-axis origin of the target component; wherein there is 1 third micro-switch arranged in the Z-axis direction of the printer for calibrating the Z-axis origin of the target part.
In some optional embodiments, the first micro switch and the second micro switch are arranged in a square structure with two opposite pairs, and the third micro switch is arranged at the bottom of the center of the square structure, so that the center area of the square structure forms a space multiplexing X-axis correction execution domain, a Y-axis correction execution domain and a Z-axis correction execution domain.
In some alternative embodiments, the conformal circuit printer further comprises: and the multi-axis motion mechanism is at least used for realizing any one motion or any multiple linkage of the printing head, the scanner, the contact probe, the origin calibration assembly, the carrier workpiece and the reference ball.
Another object of the present application is to provide a method for mapping spatial coordinates of a printer, so as to solve the problems in the prior art.
In some illustrative embodiments, the printer spatial coordinate mapping method is applied to the conformal circuit printer of any one of the above, and comprises: acquiring the space coordinates of the workpiece and the reference ball under a first reference system through a scanner; acquiring the space coordinates of the datum sphere under the second reference system through the contact probe; determining, by an origin calibration assembly, a spatial coordinate relationship between the contact probe and the printhead; and mapping and converting the space coordinates, and determining the space coordinate relationship between the printing head and the workpiece.
In some alternative embodiments, the mapping the spatial coordinates to determine a spatial coordinate relationship between the printhead and the workpiece includes: converting the spatial coordinates of the workpiece under the first reference system into spatial coordinates under a second reference system; and generating the space coordinates of the workpiece under a third reference system of the printing head according to the space coordinate relation between the contact probe and the printing head.
Compared with the prior art, the application has the following advantages:
the conformal circuit printer in the embodiment of the disclosure realizes measurement and detection of printer space coordinates through the scanner, the contact probe, the origin calibration assembly and the reference ball, can effectively reduce errors in the processes of assembling and operating movement of the printer, and can accurately and reliably determine the coordinate relationship between the printing head and the workpiece.
Drawings
FIG. 1 is a front view of a conformal circuit printer in an embodiment of the application;
FIG. 2 is a perspective view of a conformal circuit printer in an embodiment of the application;
FIG. 3 is an enlarged view of a portion of a conformal circuit printer in an embodiment of the application;
FIG. 4 is a structural example of an origin calibration assembly in an embodiment of the present application;
fig. 5 is a structural example of an aerosol jet printing system in the embodiment of the present application;
fig. 6 is a flowchart of a printer spatial coordinate mapping method in an embodiment of the application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that, all the technical features in the embodiments of the present application may be combined with each other without conflict.
The embodiment of the disclosure discloses a conformal circuit printer, in particular, as shown in fig. 1-3, fig. 1 is a front view of the conformal circuit printer in the embodiment of the application; FIG. 2 is a perspective view of a conformal circuit printer in an embodiment of the application; fig. 3 is an enlarged view of a portion of a conformal circuit printer in an embodiment of the application. The conformal circuit printer includes: a machine tool 6, a printing head 10, a workpiece seat 5 and a space calibration system which are arranged on the machine tool 6; wherein, space calibration system includes: a scanner 2, a contact probe 3, an origin calibration assembly 8 and a plurality of reference balls 4;
a workpiece seat 5 for holding a workpiece;
a printhead 10 operable to print conductive traces on a surface of a workpiece;
a scanner 2, which can be used to obtain the space coordinates of the target object under the reference of the scanner;
a contact probe 3, which can be used to obtain the space coordinates of the target object under the reference of the contact probe;
an origin calibration component 8 operable to initialize (or correct) the origin of motion of the target part;
the reference ball 4 may be used to assist in the spatial calibration of the scanner 2 and the contact probe 3.
Wherein the scanner 2, the contact probe 3, the origin calibration assembly 8 and the reference ball 4 are at least used to cooperate with each other to determine the actual coordinate relationship between the printhead 10 and the workpiece.
Specifically, the scanner 2 may acquire the spatial coordinates of the workpiece and the reference sphere 4 in the first reference frame; the contact probe 3 can acquire the space coordinates of the datum sphere 4 under the second reference system; the spatial coordinate relationship between the contact probe 3 and the printhead 10 can be determined by the origin calibration assembly 8; the spatial coordinates are mapped and converted, so that a spatial coordinate relationship between the print head 10 and the workpiece can be determined.
The conformal circuit printer in the embodiment of the disclosure realizes measurement and detection of printer space coordinates through the scanner, the contact probe, the origin calibration assembly and the reference ball, can effectively reduce errors in the processes of assembling and operating movement of the printer, and can accurately and reliably determine the coordinate relationship between the printing head and the workpiece.
In some embodiments, the conformal circuit printer may further comprise: the multi-axis motion mechanism 7 is at least used for realizing any one motion or any multiple linkage of the printing head 10, the scanner 2, the contact probe 3, the origin calibration assembly 8, the carrier workpiece and the reference ball 4. One or more of the above components can share a set of multi-axis motion mechanism to realize motion or linkage, or motion mechanisms are respectively configured to realize motion or linkage of the corresponding components.
Specifically, the multi-axis motion mechanism can realize the motion of at least 2 axes of an X axis, a Y axis, a Z axis, an A axis (along the X axis rotation axis), a B axis (along the Y axis rotation axis) and a C axis (along the Z axis rotation axis), and the person skilled in the art can select according to the requirement of the printing operation.
Preferably, the multi-axis motion mechanism may be a five-axis motion mechanism, and the motion axis system may include: x-axis, Y-axis, Z-axis, A-axis and C-axis. Such as a combination of XYZ axes + AC axes, or a combination of XZ axes + YAC axes, etc.
For the convenience of quick understanding of those skilled in the art, in the embodiment of the present application, a multiaxial motion mechanism of XZ axis (i.e., XZ axis motion mechanism) +yac axis (i.e., YAC axis motion mechanism) is selected for illustration; the printing head, the scanner and the contact probe are arranged on the machine tool through the XZ axis movement mechanism, the workpiece seat is arranged on the machine tool through the YAC axis movement mechanism, and the origin calibration assembly and the reference ball are arranged on the machine tool only through the Y axis of the YAC axis movement mechanism and move along with the Y axis.
At this time, the print head, the scanner, and the contact probe may be spatially linked in five XYZAC axes, and the print head, the scanner, and the contact probe may be spatially linked in three XYZ axes.
Specifically, in the conformal circuit printer in this example, the print head 10, the contact probe 3, and the scanner 2 are arranged on the Z axis 75, the scanner 2 and the contact probe 3 are simultaneously movable in the Z axis direction, the print head 10 is independently movable in the Z axis direction, and the Z axis 75 is arranged on the X axis 71. I.e. X-axis, Z-axis movement of the printhead 10, the contact probe 3 and the scanner 2.
The workpiece holder 5 is disposed on the C-axis 72, the C-axis 72 is disposed on the a-axis 73, the a-axis 73 is disposed on the Y-axis 74, and the reference ball 4 and the origin calibration assembly 8 are disposed on the Y-axis 74, i.e., the YAC-axis motion of the workpiece and the Y-axis motion of the reference ball 4 and the origin calibration assembly 8 are realized.
The installation configuration structure can be realized through structures such as an installation plate, a seat, a sliding table and a sliding rail, which are conventional in the art and are not described in detail.
Besides the five-axis motion mechanism, a conventional XYZ three-axis motion mechanism or any other two-axis motion mechanism can be adopted, and the application is not repeated here.
The number of reference balls 4 in the embodiments of the present disclosure should be not less than 3 in order to accurately match the scanner 2 and the contact probe 3 to accomplish the spatial calibration. The larger the distribution range of the reference ball 4 is, the smaller the subsequent measurement error is, so that the reference ball can be distributed around multiple sides of the workpiece seat 5, and the measurement error is reduced. It will be appreciated by those skilled in the art that the reference balls may be gathered to a relatively smaller extent, but may be subject to larger measurement errors, and that the reference ball distribution structure may be employed without the measurement errors exceeding a maximum reception threshold.
Furthermore, the more the number of the reference balls is, the smaller the subsequent measurement error is, but if the number of the reference balls is too large, the space arrangement and the size of the printer are greatly influenced, so that 6 reference balls 4 can be adopted, the two opposite sides of the workpiece seat 5 are uniformly distributed, namely 3 on each side, the existing algorithms such as 3 ball calibration, 4 ball calibration, 5 ball calibration and the like can be adopted, and the calibration and correction can be carried out by using other ball combinations.
In the embodiment of the disclosure, the scanner 2 is used to simultaneously acquire the data images of the workpiece and the reference ball 4, and then the reference ball 4 is used to perform space coordinate calibration, so as to obtain the space coordinates of the workpiece and the reference ball 4, which belongs to a conventional technology in the art and will not be described in detail. Wherein the scanner 2 employs one or more combinations of a photographic scanner, a laser scanner, and an ultrasonic scanner.
In the embodiment of the present disclosure, the contact probe 3 adopts a contact detection manner, and the contact probe 3 may adopt a pressure probe or a conductive probe by using the stroke and/or the point position in the contact process as the measurement result; preferably, the contact probe 3 in the embodiment of the present application may be a conductive probe, and the reference ball 4 is made of a conductive material; after the contact probe 3 and the reference ball 4 are contacted, a signal trigger loop is formed. I.e. when the contact probe 3 contacts the reference ball 4, a trigger signal is generated, and a contact measurement is completed.
The manner of acquiring the spatial coordinates of the reference ball 4 by using the contact probe 3 may employ a three-point method, that is, three points on the contact reference ball 4 are distributed by using the contact probe 3, so that the center (sphere center) of the reference ball 4 is determined by using a three-point method algorithm, and the spatial coordinates of the reference ball 4 can be determined after the detection of at least 3 different reference balls 4 is completed. Wherein, other existing dividing algorithms can be used for determining the center of the reference ball 4.
The positional arrangement of the reference ball 4 in the embodiment of the present disclosure should be within the detection stroke range of the scanner 2 and the contact probe 3.
As shown in fig. 4, the origin calibration assembly 8 in the embodiment of the present disclosure includes: at least 5 microswitches; wherein there are 2 first micro-switches 81 disposed opposite to each other in the X-axis direction of the printer for calibrating the X-axis origin of the target member; wherein there are 2 second micro-switches 82 oppositely disposed in the Y-axis direction of the printer for calibrating the Y-axis origin of the target part; there is 1 third micro switch 83 arranged in the Z-axis direction of the printer to calibrate the Z-axis origin of the target part.
The micro switch (also called sensitive switch) is generally provided with a specific trigger stroke and is electrically connected with the signal trigger circuit, after the pulling sheet or the contact is pressed and triggered, the switch element in the micro switch can be turned on or turned off, and after the state of the micro switch is changed, the corresponding electric signal can be obtained through the signal trigger circuit.
In the embodiment of the disclosure, the 2 first micro switches are oppositely arranged in the X-axis direction of the printer, namely the operation surfaces (the surfaces where the pulling sheets or the contacts are located) of the two micro switches are oppositely arranged, when the detection is performed, the target component only needs to go deep into the X-axis deviation rectifying execution domain, then the target component is controlled to move left and right along the X-axis to trigger signals, the moving stroke is recorded, and the position of the target component in the X-axis deviation rectifying execution domain can be obtained, so that the position of the target component is adjusted to be the midpoint of the X-axis deviation rectifying execution domain, and the origin calibration of the target component in the X-axis is realized.
In the embodiment of the disclosure, the 2 second micro switches are oppositely arranged in the Y-axis direction of the printer, which also means that the operation surfaces (the surfaces where the pulling sheets or the contacts are located) of the two micro switches are oppositely arranged, when the detection is performed, the target component only needs to go deep into the Y-axis deviation rectifying execution domain, then the target component is controlled to move up and down along the Y-axis to trigger a signal, the moving stroke is recorded, and the position of the target component in the Y-axis deviation rectifying execution domain can be obtained, so that the position of the target component is adjusted to be the midpoint of the Y-axis deviation rectifying execution domain, and the origin calibration of the target component in the Y-axis direction is realized.
The Z-axis height of the target component is adjusted after triggering by controlling the target component to fall on the Z-axis deviation correcting execution domain.
The origin calibration assembly 8 can be used for initializing (correcting) at least the space coordinate origins of the contact probe 3 and the printing head 10, meanwhile, as the space coordinate origins of the contact probe 3 and the printing head 10 are known, the deviation of the two space coordinate origins can be determined, and then the space coordinate relation between the contact probe 3 and the printing head 10 is determined, and further the conversion mapping of the coordinates of the contact probe 3 and the printing head 10 is realized.
In some embodiments, the first micro switch 81 and the second micro switch 82 are arranged in a square structure with two opposite directions, and the third micro switch 83 is disposed at the bottom of the center of the direction structure, so that the center area of the direction structure forms a space multiplexing X-axis correction execution domain, a Y-axis correction execution domain and a Z-axis correction execution domain.
Further, the size of the multiplexed correction execution domain formed by the 5 micro switches can be designed according to practical requirements, for example, 0.25cm 2 ～100cm 2 A range; preferably, the multiplexed deskew execution domain is sized to be no more than 4cm 2 Further, the influence on the printer space size can be reduced to a minimum.
The printhead 10 in the embodiment of the present application is used as an execution component of a printing system, and the printing system may be an aerosol printing system, a piezoelectric inkjet printing system, an electric field driving printing system, a dispensing extrusion printing system, or the like. Typically, the spatial coordinates of the printhead refer to the spatial coordinates of the nozzles/nozzles of the printhead, i.e., the spatial coordinate relationship of the printhead and the contact probes in certain embodiments of the present disclosure, and the spatial coordinate relationship of the nozzles/nozzles of the printhead and the contact probes.
Preferably, an embodiment of the present application discloses an aerosol jet printing system, specifically, as shown in fig. 5, fig. 5 is a schematic structural diagram of an aerosol jet printing device in the embodiment of the present application. The aerosol jet printing apparatus 1 includes: an atomizing chamber 14, an atomizer 12, a sensor 13, a printhead 10, one or more exhaust valves 15; wherein the atomizer 12, the sensor 13, the printhead 10 and the exhaust valve 15 are in communication with the atomizing chamber 14, respectively.
Specifically, the atomizer 12 is configured to generate a carrier gas stream (also referred to as an aerosol gas stream) carrying an aerosol; the nebulizing chamber 14 is used for storing a fixed amount of the aerosol for use by the printhead 10; the printhead 10 is configured to eject ink from the carrier gas stream under the influence of a sheath gas stream; the sensor 13 is used for detecting the air pressure intensity in the atomizing chamber 14; the exhaust valve 15 is configured to stabilize the air pressure intensity in the atomization chamber within a set threshold range.
Wherein the set threshold range is related to an ideal aerosol printing pressure, which may be determined by theoretical calculation and/or actual verification.
The aerosol jet printing system is provided with the sensor and the exhaust valve which are communicated with the atomizing chamber, so that the pressure intensity in the atomizing chamber is always stabilized in a set threshold range by using the sensor and the exhaust valve, and the printing quality of the aerosol jet printing device is ensured.
In some embodiments of the present disclosure, the atomizer 12 may be a pneumatic atomizer or an ultrasonic atomizer; for the pneumatic atomizer, the printing material is carried by utilizing the atomization air flow based on the siphon effect or the Venturi effect to perform impact atomization, so that the printing aerosol is generated, and the atomization air flow can also serve as the carrier air flow at the moment and plays a role of pressurizing in the atomization chamber, so that the carrier air carrying the aerosol can flow towards the printing direction to surge. For the ultrasonic atomizer, the printing material is crushed and atomized into printing aerosol by utilizing the ultrasonic vibration principle, and at the moment, a carrier gas flow can be additionally provided for the ultrasonic atomizer, so that a pressurizing effect is achieved in the atomizing chamber, and the carrier gas carrying the aerosol can flow to the printing direction in a trend.
In some embodiments of the present disclosure, the printhead 10 is an aerosol printhead, which is respectively in communication with the atomizing chamber 14 and the sheath air flow system, so that the aerosol air flow entering the printhead is covered by the sheath air flow to eject ink; the structure between the aerosol air path and the sheath air path in the aerosol print head can refer to the prior art, and this will not be described in detail in the embodiments of the present disclosure.
In some disclosed embodiments, the sensor 13 may alternatively be a gas pressure sensor or a vacuum sensor, which may be configured to control in association with the vent valve 15, the start and stop of the vent valve being operated in response to a change in the gas pressure within the chamber detected by the sensor.
The aerosol jet printing system in the embodiment of the disclosure can be suitable for aerosol printing and forming of printing materials (before aerosol atomization) such as metal, plastic, ceramic, conductive ink and the like in the prior art. Conductive inks such as liquid metal, conductive silver paste, conductive copper paste, conductive aluminum paste, and the like.
In some embodiments of the present disclosure, the print head 10 is communicated with the atomization chamber 14 through a flexible pipe 16, and a pinch valve 17 for controlling the opening and closing states of the flexible pipe 16 is disposed on the flexible pipe 16.
In the embodiment of the disclosure, the connection and disconnection of the printing passage are realized by utilizing the matching of the flexible pipeline 16 and the pinch valve 17, compared with the control of the traditional electromagnetic shutoff valve, the aerosol cannot cause pollution and damage of the electromagnetic valve, thereby being beneficial to reducing the maintenance cost of equipment.
In some embodiments of the present disclosure, the atomizer 12 is movably detachably connected to the atomizing chamber 14. Wherein the removable connection is conventionally made by threads, clamping, sleeving, bonding, etc. The prior art is often with the atomizer integrated inside the atomizer chamber, but the atomizing structure fineness of atomizer is higher, when carrying out the atomizing of high, the conductive silver thick liquid of solidifying easily, conductive copper thick liquid, conductive aluminum thick liquid, appears the phenomenon of putty easily, and the activity detachable connection between atomizer and the atomizer chamber is favorable to the washing and the change of atomizer in this disclosed embodiment.
In some disclosed embodiments, the atomizer 12 communicates with the bottom of the atomizing chamber 14 and the printhead 10 communicates with the top of the atomizing chamber 14.
In the embodiment of the disclosure, the atomizer 12 is arranged at the bottom of the atomizing chamber 14, the printing head 10 is communicated with the top of the atomizing chamber 14, so that aerosol is more easily uniformly dispersed in the atomizing chamber, and the aerosol airflow with uniform concentration is ensured to enter the printing head.
In some embodiments of the present disclosure, the aerosol jet printing system may further comprise: a first filter 18 and/or a second filter 19; the at least one exhaust valve 15 communicates with the atomizing chamber 14 through the first filter 18; the sensor 13 communicates with the atomizing chamber 19 through the second filter 19.
The pollution damage of the exhaust valve 15 can be reduced through the first filter 18, and the pollution damage of the sensor 13 can be reduced through the second filter 19, so that the normal operation of the exhaust valve 15 and the sensor 13 is ensured.
In some embodiments of the present disclosure, at least one side of the atomizing chamber 14 is visually configured to allow a user to visually check the degree of atomization and quickly find the problem of atomization. Illustratively, the atomizing chamber may be constructed of a transparent material or, alternatively, a cover plate of transparent material may be employed on one side.
The embodiment of the application also discloses a conformal circuit printer, which comprises: a machine tool 6, a five-axis motion mechanism 7 arranged on the machine tool 6, a printing system 1 arranged on the five-axis motion mechanism 7, a space calibration system and a workpiece seat 5 for bearing a workpiece; the five-axis motion mechanism 7 supports the printing system 1 and the workpiece to perform linear interpolation motion, so that a conformal circuit is manufactured on the surface of the workpiece; the spatial calibration system is used to determine the spatial coordinate relationship between the printing system 1 and the workpiece.
Wherein, five motion mechanism 7 includes: a first drive chain and a second drive chain; the printing system 1 is arranged on the first transmission chain, and can realize independent movement of the printing system 1 along an X axis and a Z axis; the workpiece seat 5 is arranged on the second transmission chain, and can realize independent movement of the workpiece along the Y axis, the A axis and the C axis.
In some embodiments, the printing system includes: a print head disposed on the first drive train;
in some embodiments, the spatial calibration system comprises: a scanner, a contact probe, an origin calibration assembly, and a plurality of positioning reference balls; the scanner and the contact probe are arranged on the first transmission chain; the origin calibration assembly and the reference ball are arranged on the second transmission chain; the scanner, the contact probe, the origin calibration assembly and the reference sphere are at least used for cooperatively determining a spatial coordinate relationship between the printing head and the workpiece.
In some embodiments, the origin calibration assembly and the reference ball are only linked with the Y-axis on the second drive chain.
The structure and principle of the above space calibration system may refer to the foregoing embodiments, and will not be described in detail.
In some embodiments, the reference ball is located within a measuring range of travel of the scanner and contact probe, and is at least 3 in number, and is disposed around the outside of the workpiece holder.
In some embodiments, the origin calibration assembly comprises: 2 first micro switches oppositely arranged in the X-axis direction of the printer and used for calibrating the X-axis origin of the target component; 2 second micro switches oppositely arranged in the Y-axis direction of the printer and used for calibrating the Y-axis origin of the target component; and a third micro switch arranged in the Z-axis direction of the printer and used for calibrating the Z-axis origin of the target component.
In some embodiments, the first micro-switch and the second micro-switch are arranged in a square shape with opposite pairs, and the third micro-switch is arranged at the bottom of the center of the square structure, so that the center area of the square structure forms a space multiplexing X-axis correction execution domain, a Y-axis correction execution domain and a Z-axis correction execution domain.
The printing system in the embodiment of the disclosure can adopt an aerosol printing system, a piezoelectric ink-jet printing system, an electric field driving printing system, a dispensing extrusion printing system and the like; the aerosol printing system may refer to the foregoing embodiments, and is not described herein.
Another object of the present application is to provide a method for mapping spatial coordinates of a printer, so as to solve the problems in the prior art. Specifically, as shown in fig. 6, fig. 6 is a schematic flow chart of a printer space coordinate mapping method in an embodiment of the application; the printer space coordinate mapping method is applied to the conformal circuit printer of any one of the above, and comprises the following steps:
s11, acquiring space coordinates of a workpiece and a reference ball under a first reference system through a scanner;
step S12, acquiring the space coordinates of a reference sphere under a second reference system through a contact probe;
s13, determining a spatial coordinate relationship between the contact probe and the printing head through an origin calibration assembly;
and S14, mapping and converting the space coordinates, and determining the space coordinate relation between the printing head and the workpiece.
Specifically, the mapping conversion of the above spatial coordinates to determine a spatial coordinate relationship between the print head and the workpiece includes: converting the spatial coordinates of the workpiece under the first reference system into spatial coordinates under a second reference system; and generating the space coordinates of the workpiece under a third reference system of the printing head according to the space coordinate relation between the contact probe and the printing head.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims (10)

1. A conformal circuit printer, comprising: the device comprises a machine tool, a printing head, a scanner, a contact probe, an origin calibration assembly, a workpiece seat for bearing a workpiece and a plurality of positioning reference balls, wherein the printing head, the scanner, the contact probe and the origin calibration assembly are arranged on the machine tool;
the scanner, the contact probe, the origin calibration assembly and the reference sphere are at least configured to cooperatively determine an actual coordinate relationship between the printhead and the workpiece.
2. The conformal circuit printer of claim 1, wherein the reference balls are not less than 3 in number, distributed around multiple sides of the workpiece holder.
3. The conformal circuit printer of claim 2, wherein the number of reference balls is 6, evenly distributed on both sides of the workpiece holder.
4. The conformal circuit printer of claim 1, wherein said contact probes are conductive probes and said reference balls are conductive; and a signal trigger loop is formed after the contact probe is contacted with the reference ball.
5. The conformal circuit printer of claim 1, wherein the scanner employs one or more of a photographic scanner, a laser scanner, and an ultrasound scanner in combination.
6. The conformal circuit printer of claim 1, wherein the origin calibration assembly comprises: at least 5 microswitches; wherein, 2 first micro switches are oppositely arranged in the X-axis direction of the printer and used for calibrating the X-axis origin of the target component; wherein 2 second micro switches are oppositely arranged in the Y-axis direction of the printer and used for calibrating the Y-axis origin of the target component; wherein there is 1 third micro-switch arranged in the Z-axis direction of the printer for calibrating the Z-axis origin of the target part.
7. The conformal circuit printer according to claim 6, wherein the first micro-switch and the second micro-switch are arranged in a square structure with two opposite directions, and the third micro-switch is arranged at the bottom of the center of the square structure, so that the center area of the square structure forms an X-axis deviation rectifying execution domain, a Y-axis deviation rectifying execution domain and a Z-axis deviation rectifying execution domain which are spatially multiplexed.
8. The conformal circuit printer according to claim 1, further comprising:
and the multi-axis motion mechanism is at least used for realizing any one motion or any multiple linkage of the printing head, the scanner, the contact probe, the origin calibration assembly, the carrier workpiece and the reference ball.
9. A printer space coordinate mapping method, characterized by being applied to the conformal circuit printer according to any one of claims 1-8, comprising:
acquiring the space coordinates of the workpiece and the reference ball under a first reference system through a scanner;
acquiring the space coordinates of the datum sphere under the second reference system through the contact probe;
determining, by an origin calibration assembly, a spatial coordinate relationship between the contact probe and the printhead;
and mapping and converting the space coordinates, and determining the space coordinate relationship between the printing head and the workpiece.
10. The printer space coordinate mapping method according to claim 9, wherein said mapping the above space coordinates to determine a space coordinate relationship between the print head and the workpiece comprises:
converting the spatial coordinates of the workpiece under the first reference system into spatial coordinates under a second reference system; and generating the space coordinates of the workpiece under a third reference system of the printing head according to the space coordinate relation between the contact probe and the printing head.
CN202310747579.7A 2023-06-25 2023-06-25 Conformal circuit printer and printer space coordinate mapping method Pending CN116587606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310747579.7A CN116587606A (en) 2023-06-25 2023-06-25 Conformal circuit printer and printer space coordinate mapping method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310747579.7A CN116587606A (en) 2023-06-25 2023-06-25 Conformal circuit printer and printer space coordinate mapping method

Publications (1)

Publication Number Publication Date
CN116587606A true CN116587606A (en) 2023-08-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Link
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