Multi-needle five-axis printing system

Abstract

The utility model provides a multi-needle five-axis printing system, which comprises at least two printing mechanisms and an adjusting mechanism, the printing mechanisms are arranged on the Z axis of five-axis printing equipment in a sliding manner, the printing mechanisms are used for printing products on the surface of a printing substrate, and the adjusting mechanism is used for adjusting the relative position of each printing mechanism and the printing substrate. According to the utility model, at least two printing mechanisms arranged on the Z axis of the five-axis printing equipment in a sliding manner are adopted, so that different printing effects can be achieved through a plurality of printing mechanisms, and the relative position of each printing mechanism and the printing substrate is adjusted by arranging the adjusting mechanism; the problem that in the multi-needle five-axis printing process, due to the rotating motion of a product, when one printing needle works, the other printing needles interfere with the product can be solved, meanwhile, the space curved surface dispensing efficiency is greatly improved, the automation degree is high, and industrialization is easy.

Description

TECHNICAL FIELD

[0001] The utility model relates to five -axis printing technical field especially, and it is a kind of multi-needle five -axis printing system. BACKGROUND

[0002] Five-axis printing is an innovative technology in the field of additive manufacturing, which adds two additional rotational axes, so that the print head can print on multiple planes, not just one plane. This design enables five-axis printers to manufacture complex geometric parts without support, greatly improving the flexibility of printing and the strength of parts. The core of five-axis printing is that it adds two rotational axes (usually A-axis and B-axis), so it can print more complex and delicate models.

[0003] At present, the existing five-axis printing equipment mostly uses single printing needle, but since a product may need multiple different width lines, multiple different inner diameter needles need to be set, and if multiple printing needle printing mechanism is directly applied to five-axis printing equipment, since the product will rotate during printing, the problem of interference between the remaining printing needles and the product when one of the printing needles works is prone to occur.

[0004] A five-axis linkage device for graphic printing on curved surfaces is disclosed in Chinese patent literature, with the authorization publication number CN206201478U. The five-axis linkage device of this patent includes a five-axis linkage module to control the position of inkjet, an inkjet printing module and a laser curing module. The printed curved surface is moved by the five-axis linkage mechanism, so that the direction of the nozzle is always perpendicular to the printing surface. The surface ink is sprayed on the curved surface as required, and the surface ink is cured by laser at the same time. Finally, the required pattern is formed. This patent uses a five-axis linkage mechanism to move the printed curved surface, so that the direction of the nozzle is always perpendicular to the printing surface. The surface ink is sprayed on the curved surface as required, and the surface ink is cured by laser at the same time. Finally, the required pattern is formed. The five-axis linkage device of this patent still uses a single nozzle, which obviously cannot solve the problem of interference between multiple printing nozzles and the product. UTILITY MODEL CONTENT

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a multi-needle five-axis printing system to solve the problem that the existing multiple printing needle printing mechanism is applied to five-axis printing equipment, and since the product will rotate during printing, the problem of interference between the remaining printing needles and the product when one of the printing needles works is prone to occur.

[0006] To achieve the above object and other related objects, the utility model provides a kind of multi-needle five-axis printing system, including at least two printing mechanism and adjusting mechanism of slidingly being arranged on the Z axis of five-axis printing equipment, the printing mechanism is used to print product on the surface of printing substrate, the adjusting mechanism is used to adjust the relative position of each printing mechanism and printing substrate.

[0007] In the above technical solution of the present application, at least two printing mechanisms are slidably arranged on the Z axis of the five-axis printing equipment, which prints a variety of different widths of linear type through a variety of different inner diameter needles, completes different printing effects, and adjusts the relative position of each printing mechanism and the printing substrate by setting the adjusting mechanism. It not only can avoid the problem of interference between the remaining printing needles and the product when one of the printing needles is working due to the rotational movement of the product during the multi-needle five-axis printing process, but also greatly improves the efficiency of space curved point gluing, with high automation and easy industrialization.

[0008] Preferably, the multi-needle five-axis printing system further comprises a needle observation mechanism, which is used to monitor the printing state of each printing mechanism in real time to improve the printing precision.

[0009] Preferably, the needle observation mechanism comprises an observation camera corresponding to the printing mechanism, the printing mechanism comprises a feeding barrel and a printing needle arranged at the bottom of the feeding barrel, and the observation camera is used to observe the printing state of the printing needle in real time to improve the printing precision.

[0010] Preferably, the multi-needle five-axis printing system further comprises a positioning camera, which is used for initial positioning of the printing substrate.

[0011] Preferably, the multi-needle five-axis printing system further comprises a 3D camera assembly, which is used to extract the printing path of the product in X direction, Y direction and Z direction

[0012] In the above technical solution of the present application, the 3D camera assembly can non-contact measure the printing contour and thickness of the printing mechanism on the printing substrate, and based on efficient data acquisition, it can monitor various printing parameters of the product in real time to improve the printing precision.

[0013] Preferably, the 3D camera assembly comprises a bottom plate, an angle adjusting mechanism arranged on the bottom plate and a 3D camera, the bottom plate is slidably arranged on the Z axis of the five-axis printing equipment and can be adjusted along the Z axis, and the angle adjusting mechanism is used to adjust the 3D camera parallel to the Z axis of the five-axis printing equipment.

[0014] In the above technical solution of the present application, the angle adjusting mechanism can monitor the parallelism of the 3D camera and the Z axis of the five-axis printing device, and only when the 3D camera is parallel to the Z axis of the five-axis printing device, the five-axis algorithm can be accurate, and the machining precision of the product can be improved.

[0015] Preferably, the angle adjusting mechanism comprises an adjusting seat arranged on the bottom plate, and an X-direction angle adjusting table, a Y-direction angle adjusting table and a Z-direction rotating table arranged on the adjusting seat, the X-direction angle adjusting table, the Y-direction angle adjusting table and the Z-direction rotating table are fixedly connected, and the 3D camera is fixedly connected with the Z-direction rotating table, so that the 3D camera can be parallel to the Z axis of the five-axis printing device.

[0016] Preferably, the adjusting mechanism has at least one, the adjusting mechanism is arranged on the corresponding printing mechanism, and the adjusting mechanism comprises a driving mechanism, the driving mechanism is used for driving the corresponding printing mechanism to move in the direction close to or away from the printing substrate.

[0017] Preferably, the adjusting mechanism further comprises a mounting base slidingly arranged on the Z axis of the five-axis printing device, and the driving mechanism comprises a lifting electric cylinder arranged on the mounting base, and the telescopic rod of the lifting electric cylinder is fixedly connected with the adjusting mechanism.

[0018] Preferably, the driving mechanism further comprises a linear guide rail arranged on the mounting base, a sliding block is slidingly arranged on the linear guide rail, and the printing mechanism is fixedly connected with the sliding block.

[0019] In the above technical solution of the present application, the linear guide rail can limit the movement track of the printing mechanism, which is more accurate, easy to control, avoids collision between the printing mechanism and other components during movement, and improves the stability of the multi-needle five-axis printing system.

[0020] Preferably, the driving mechanism further comprises a limiting block arranged at the bottom of the linear guide rail, and the limiting block is used for limiting the stroke of the printing mechanism moving along the linear guide rail.

[0021] In the above technical solution of the present application, the limiting block can limit the stroke of the printing mechanism moving along the linear guide rail, avoid collision between the printing mechanism and the printing substrate when moving in the direction close to the printing substrate, and improve the stability of the multi-needle five-axis printing system.

[0022] As described above, the multi-needle five-axis printing system has the following beneficial effects:

[0023] (1) The printing mechanism arranged on the Z-axis of the five-axis printing equipment by sliding can print lines of different widths through different inner diameters of the needle by the plurality of printing mechanisms, complete different printing effects, and adjust the relative positions of the printing mechanisms and the printing substrate through the adjusting mechanism, thereby avoiding the problem of interference between the remaining printing needles and the product when one printing needle works due to the rotation of the product during the multi-needle five-axis printing process, greatly improving the efficiency of the space curved dispensing, and being high in automation and easy to industrialize.

[0024] (2) The 3D camera assembly can extract the printing path of the product in the X direction, the Y direction and the Z direction, and the angle adjusting mechanism can monitor the parallelism of the 3D camera and the Z-axis of the five-axis printing equipment. Only when the measurement angle of the 3D camera and the Z-axis of the five-axis printing equipment is adjusted to be parallel, the five-axis algorithm can be accurate, and the machining precision of the product can be improved.

[0025] (3) The linear guide rail can limit the movement track of the printing mechanism, which is more accurate and easy to control. The limiting block can limit the stroke of the printing mechanism moving along the linear guide rail, avoid collision between the printing mechanism and other components during movement, and improve the stability of the multi-needle five-axis printing system. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A structure schematic view of a multi-needle five-axis printing system is shown.

[0027] Figure 2 A structure schematic view of a 3D camera assembly is shown.

[0028] Figure 3 A structure schematic view of a printing mechanism and an adjusting mechanism is shown.

[0029] Figure 4 Another view of Figure 3 is shown.

[0030] BRIEF DESCRIPTION OF DRAWINGS: printing mechanism 1, feeding barrel 11, printing needle 12, clamp 13, observation camera 2, positioning camera 3, 3D camera assembly 4, bottom plate 41, 3D camera 42, adjusting seat 43, X direction angle adjusting table 44, Y direction angle adjusting table 45, Z direction rotating table 46, mounting base 5, lifting electric cylinder 51, linear guide rail 52, sliding block 521, limiting block 522, servo module 6. DETAILED DESCRIPTION

[0031] The embodiments of the present application are described below by specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification.

[0032] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0033] Unless otherwise expressly specified and limited, the terms "connection", "fixation", "arrangement" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be directly connected, or indirectly connected through an intermediate medium, can be the connection inside two components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] As shown in Figure 1 The embodiment of the present application provides a multi-needle five-axis printing system, which comprises a servo module 6 arranged on a Z-axis of a five-axis printing device and a bottom plate 41 arranged on a sliding block of the servo module, the bottom plate can be adjusted up and down along the Z-axis, two printing mechanisms 1, a needle observation mechanism, a positioning camera 3, a 3D camera assembly 4 are arranged on the bottom plate, and an adjusting mechanism is arranged on one of the printing mechanisms, the printing mechanism is used for printing products on the surface of a printing substrate, the adjusting mechanism is used for adjusting the relative position of each printing mechanism and the printing substrate, the needle observation mechanism is used for monitoring the printing state of each printing mechanism in real time, the positioning camera is used for initial positioning of the printing substrate, and the 3D camera assembly is used for extracting the printing path of products in X, Y and Z directions. The adjusting mechanism comprises a driving mechanism, and the driving mechanism is used for driving the corresponding printing mechanism to move in the direction of approaching or moving away from the printing substrate.

[0035] As shown in Figure 2 The 3D camera assembly comprises an angle adjusting mechanism and a 3D camera 42 arranged on the bottom plate 41, the angle adjusting mechanism is used for adjusting the 3D camera to be parallel to the Z-axis of the five-axis printing device. The angle adjusting mechanism comprises an adjusting seat 43 arranged on the bottom plate 41 and an X-direction angle adjusting table 44, a Y-direction angle adjusting table 45 and a Z-direction rotating table 46 arranged on the adjusting seat, waist holes are vertically and symmetrically arranged on both sides of the adjusting seat, the adjusting seat can be adjusted up and down along the Z direction through the waist hole, the X-direction angle adjusting table, the Y-direction angle adjusting table and the Z-direction rotating table are fixedly connected, and the 3D camera is fixedly connected with the Z-direction rotating table.

[0036] As shown in Figure 1 , Figure 3 and Figure 4As shown, the needle observation mechanism includes an observation camera 2 arranged corresponding to the printing mechanism, the printing mechanism 1 includes a supply barrel 11, a printing needle 12 arranged at the bottom of the supply barrel, and a clamp 13, and the observation camera is used to observe the printing state of the printing needle in real time. The adjusting mechanism further includes a mounting base 5 arranged on the bottom plate 41, the mounting base is vertically and symmetrically provided with a waist hole on both sides, the mounting base is adjusted up and down along the Z direction through the waist hole, the supply barrel and the printing needle are fixed on the mounting base 5 through the clamp, the driving mechanism includes a lifting electric cylinder 51 and a linear guide rail 52 arranged on the mounting base, a sliding block 521 is arranged on the linear guide rail, the printing mechanism is fixedly connected with the sliding block, and the lifting electric cylinder is fixedly connected with the adjusting mechanism. The bottom of the linear guide rail is provided with a limiting block 522, and the limiting block is used to limit the stroke of the printing mechanism moving along the linear guide rail.

[0037] Application Example 1

[0038] The dispensing of the curved screen frame of the mobile phone can significantly improve the overall structural strength of the mobile phone, making it more durable. Secondly, due to the design characteristics of the curved screen mobile phone, gaps are easily generated between the screen and the frame, and dispensing can effectively seal these gaps to prevent foreign matter such as dust and moisture from entering, thereby prolonging the service life of the mobile phone and maintaining a good appearance. Furthermore, dispensing technology can also enhance the waterproof performance of the mobile phone, providing additional protection for the mobile phone. However, the glue type of the mobile phone frame dispensing is a spatial curved surface, and traditional three-axis printing equipment cannot accurately print the spatial curved surface.

[0039] The working principle of the multi-needle five-axis printing system in this embodiment when applied to the dispensing of the curved screen frame of the mobile phone is as follows:

[0040] Before printing, a positioning camera is used to preliminarily position the curved screen frame of the mobile phone;

[0041] Each printing mechanism of the five-axis printing equipment prints the product on the surface of the curved screen frame of the mobile phone;

[0042] During the printing process, the adjusting mechanism adjusts the relative position of each printing mechanism and the curved screen frame of the mobile phone, specifically as follows: Figure 3 and Figure 4As shown, when the printing mechanism without the adjustment mechanism starts printing, the driving mechanism is used to drive the corresponding printing mechanism to move away from the printing substrate, the lifting electric cylinder is used to drive the printing mechanism to drive the sliding block to move upward along the linear guide rail 52, and the limiting block is used to limit the stroke of the printing mechanism moving along the linear guide rail, so as to avoid the interference between the printing mechanism and the product. During the printing process, the observation camera is used to observe the printing state of the printing needle in real time, the X-direction angle adjusting table, the Y-direction angle adjusting table and the Z-direction rotating table are combined, the 3D camera 42 is used to extract the printing path of the product in the X-direction, the Y-direction and the Z-direction, the printing profile and the thickness of the printing mechanism on the printing substrate are measured in a non-contact manner, the printing parameters of the product are monitored in real time based on efficient data acquisition, and the printing precision is improved.

[0043] When the printing mechanism without the adjustment mechanism completes printing, the lifting electric cylinder is used to drive the printing mechanism to drive the sliding block to move downward along the linear guide rail 52, the limiting block is used to limit the stroke of the printing mechanism moving along the linear guide rail, so as to avoid the interference between the printing mechanism and the product. Start the printing mechanism to start printing, and during the printing process, the observation camera is used to observe the printing state of the printing needle in real time, the X-direction angle adjusting table, the Y-direction angle adjusting table and the Z-direction rotating table are combined, the 3D camera 42 is used to observe the printing path of the printing substrate surface in the X-direction, the Y-direction and the Z-direction in real time, the printing profile and the thickness of the printing mechanism on the curved screen frame of the mobile phone are measured in a non-contact manner, the printing parameters of the product are monitored in real time based on efficient data acquisition, and the printing precision is improved, so as to realize the precise dispensing of the curved screen frame of the mobile phone.

[0044] Application Example 2

[0045] In a semiconductor device, the design of a curved electrode can achieve better electric field distribution and higher electric field strength. This is very important for some power devices, optoelectronic devices or radio frequency devices. For example, in high-voltage devices, by designing a curved electrode, the electric field concentration effect can be reduced, the breakdown voltage of the device can be improved, and thus the reliability and stability of the device can be improved. Because the substrate is in a spherical shape, it is not possible to directly print the electrode on the surface using traditional three-axis printing equipment, and a five-axis operation platform needs to be used for processing.

[0046] The working principle of the multi-needle five-axis printing system described in this embodiment when applied to the printing of a curved electrode is as follows:

[0047] Before printing, the positioning camera is used to preliminarily position the spherical substrate;

[0048] Each printing mechanism of the five-axis printing equipment prints a product on the surface of the spherical substrate;

[0049] During the printing process, the adjustment mechanism is used to adjust the relative position of each printing mechanism and the spherical substrate, and the specific adjustment mechanism is as follows: Figure 3 andFigure 4 As shown, when the printing mechanism without the adjusting mechanism starts printing, the driving mechanism is used to drive the corresponding printing mechanism to move away from the spherical substrate, the lifting electric cylinder is used to drive the printing mechanism to drive the slider to move upward along the linear guide rail 52, and the limiting block is used to limit the stroke of the printing mechanism moving along the linear guide rail to avoid interference between the printing mechanism and the product. During the printing process, the observation camera is used to observe the printing state of the printing needle in real time, combined with the X-direction angle adjusting table, the Y-direction angle adjusting table and the Z-direction rotating table, the 3D camera 42 is used to extract the printing path of the product in the X-direction, the Y-direction and the Z-direction, the printing profile and the thickness of the printing mechanism on the printing substrate are measured non-contact, the printing parameters of the product are monitored in real time based on efficient data acquisition, the printing precision is improved, and the curved surface electrode is accurately printed on the spherical substrate.

[0050] When the printing mechanism without the adjusting mechanism completes printing, the lifting electric cylinder is used to drive the printing mechanism to drive the slider to move downward along the linear guide rail 52, the limiting block is used to limit the stroke of the printing mechanism moving along the linear guide rail to avoid interference between the printing mechanism and the product, the printing mechanism is started to print, during the printing process, the observation camera is used to observe the printing state of the printing needle in real time, combined with the X-direction angle adjusting table, the Y-direction angle adjusting table and the Z-direction rotating table, the 3D camera 42 is used to observe the printing path of the printing substrate surface in the X-direction, the Y-direction and the Z-direction in real time, the printing profile and the thickness of the printing mechanism on the spherical substrate are measured non-contact, the printing parameters of the product are monitored in real time based on efficient data acquisition, the printing precision is improved, and the curved surface electrode is accurately printed on the spherical substrate.

[0051] In summary, the utility model discloses at least two printing mechanisms are arranged on the Z axis of five-axis printing equipment, and a plurality of different width linear types are printed through a plurality of different inner diameter needle heads, different printing effects are completed, the relative position of each printing mechanism and the printing substrate is adjusted through the adjusting mechanism, the problem that the remaining printing needle heads interfere with the product when one printing needle head works due to the rotation of the product in the multi-needle five-axis printing process can be avoided, the efficiency of space curved surface printing is greatly improved, the degree of automation is high, and industrialization is easy, the printing path of the product in X direction, Y direction and Z direction can be extracted through the 3D camera component, the parallelism of the 3D camera and the Z axis of five-axis printing equipment can be monitored through the angle adjusting mechanism, only when the measurement angle of the 3D camera and the Z axis of five-axis printing equipment is adjusted to be parallel, the five-axis algorithm can be accurate, and the machining precision of the product is improved, the movement track of the printing mechanism can be limited through the linear guide rail, and the printing mechanism is more accurate and easy to control, the stroke of the printing mechanism along the linear guide rail is limited through the limiting block, the printing mechanism and other components are prevented from colliding and being damaged in the movement process, and the stability of the multi-needle five-axis printing system is improved.

[0052] The above embodiment only illustrates the principle and effect of the utility model, and is not used to limit the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A multi-needle five-axis printing system, characterized by, The application relates to a multi-needle five-axis printing system, which comprises at least two printing mechanisms (1) and adjusting mechanisms, wherein the printing mechanisms are used for printing products on the surface of a printing substrate, and the adjusting mechanisms are used for adjusting the relative positions of the printing mechanisms and the printing substrate.

2. The multi-needle five-axis printing system of claim 1, wherein: The multi-needle five-axis printing system further comprises a needle observation mechanism, which is used for monitoring the printing state of each printing mechanism in real time.

3. The multi-needle five-axis printing system of claim 2, wherein: The needle observation mechanism comprises observation cameras (2) arranged correspondingly to the printing mechanisms, the printing mechanisms comprise feeding barrels (11) and printing needles (12) arranged at the bottom of the feeding barrels, and the observation cameras are used for observing the printing state of the printing needles in real time.

4. The multi-needle five-axis printing system of claim 1, wherein: The multi-needle five-axis printing system further comprises a positioning camera (3) and a 3D camera assembly (4), wherein the positioning camera is used for initial positioning of the printing substrate, and the 3D camera assembly is used for extracting the printing path of products in X, Y and Z directions.

5. The multi-needle five-axis printing system of claim 4, wherein: The 3D camera assembly comprises a bottom plate (41), an angle adjusting mechanism and a 3D camera (42), wherein the bottom plate is arranged on the Z axis of a five-axis printing device in a sliding mode and can be adjusted along the Z axis, and the angle adjusting mechanism is used for adjusting the 3D camera to be parallel to the Z axis of the five-axis printing device.

6. The multi-needle five-axis printing system of claim 5, wherein: The angle adjusting mechanism comprises an adjusting seat (43) arranged on the bottom plate, an X-direction angle adjusting table (44), a Y-direction angle adjusting table (45) and a Z-direction rotating table (46) arranged on the adjusting seat, the X-direction angle adjusting table, the Y-direction angle adjusting table and the Z-direction rotating table are fixedly connected, and the 3D camera is fixedly connected with the Z-direction rotating table.

7. The multi-needle five-axis printing system of claim 1, wherein: The adjusting mechanism has at least one, the adjusting mechanism is arranged correspondingly to the printing mechanism, the adjusting mechanism comprises a driving mechanism, and the driving mechanism is used for driving the corresponding printing mechanism to move in the direction of approaching or moving away from the printing substrate.

8. The multi-needle five-axis printing system of claim 7, wherein: The adjusting mechanism further comprises a mounting base (5) arranged on the Z axis of the five-axis printing device in a sliding mode, the driving mechanism comprises a lifting electric cylinder (51) arranged on the mounting base, and the telescopic rod of the lifting electric cylinder is fixedly connected with the adjusting mechanism.

9. The multi-needle five-axis printing system of claim 7, wherein: The driving mechanism further comprises a linear guide rail (52) arranged on the mounting base, a sliding block (521) is arranged on the linear guide rail in a sliding mode, and the printing mechanism is fixedly connected with the sliding block.

10. The multi-needle five-axis printing system of claim 9, wherein: The driving mechanism further comprises a limiting block (522) arranged at the bottom of the linear guide rail, and the limiting block is used for limiting the stroke of the printing mechanism moving along the linear guide rail.

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