Installation structure and installation method of 3D printing car

Abstract

The invention discloses a mounting structure and a mounting method of a 3D printing trolley. The mounting structure of the 3D printing trolley includes a Y-axis linear module and a print head assembly. The print head assembly includes a top plate, a side plate and a bottom plate. The Y-axis linear module has a slide with a pin hole. The top plate is provided with a positioning pin extending along the Z direction. The positioning pin is provided with two and arranged along the X direction. The positioning pin cooperates with the pin hole. The top plate is connected with the slide. The two side surfaces in the X direction of the top plate are set as positioning surfaces. The positioning surface is provided with a keyway. The positioning surface, the plane where the center lines of the two positioning pins are located and the upper surface of the top plate are perpendicular to each other. Two side plates are provided and arranged along the X direction. The side plates are provided with a guide key, a first step surface and a second step surface that are parallel to each other. The first step surface is fitted and connected with the positioning surface. The second step surface is fitted and connected with the side surface of the bottom plate. The side surface of the guide key in the Y direction is fitted and connected with the inner wall surface of the keyway. The invention can ensure that the print head assembly has high installation accuracy and reduce the difficulty of installation and debugging.

Description

Technical Field

[0001] The present invention belongs to the technical field of 3D printing equipment, and in particular relates to an installation structure and an installation method of a 3D printing vehicle. Background Art

[0002] 3DP technology is a technology that uses digital model files as the basis and uses powdered metal or non-metal and other bondable materials to print layer by layer to construct objects.

[0003] During the 3D printing process, the 3D printing carriage can move along the X-axis and Y-axis directions, and at the same time, the printing base plate of the work box will move downward to achieve layer-by-layer printing. The 3D printing carriage includes an XY-axis drive device and a 3D print head, wherein the 3D print head includes a mounting frame, an ink supply component, and an inkjet component, and the mounting frame is directly mounted on the XY-axis drive device by screws. Since the screws and screw holes have certain assembly errors, the mounting frame is offset relative to the XY-axis drive device, causing the XY direction of the 3D print head to be inconsistent with the XY direction of the XY-axis drive device. Therefore, debugging is required to ensure that the XY direction of the 3D print head is consistent with the XY direction of the XY-axis drive device, so as to adjust the installation accuracy of the 3D print head and avoid installation accuracy problems during the installation process that seriously affect the printing accuracy of the 3D printing carriage.

[0004] However, adopting the above method will increase the installation time and debugging time of the 3D printing vehicle, and even reduce the printing accuracy if the debugging is not good. Summary of the invention

[0005] The present invention aims to provide a mounting structure for a 3D printing vehicle to solve one or more technical problems existing in the prior art.

[0006] In addition, the present invention also provides a method for installing a 3D printing vehicle.

[0007] The technical solutions adopted to solve the above technical problems are:

[0008] The invention discloses an installation structure of a 3D printing trolley, comprising a Y-axis linear module and a print head assembly, wherein the print head assembly comprises a top plate, a side plate and a bottom plate; the Y-axis linear module has a slide, the slide is provided with a pin hole, the top plate is provided with a locating pin extending along the Z direction, the locating pin is provided with two and is spaced apart along the X direction, the locating pin is matched and connected with the pin hole, the top plate is connected with the slide, the two side surfaces of the top plate in the X direction are set as locating surfaces, the locating surfaces are provided with a keyway, the locating surfaces, the plane where the center lines of the two locating pins are located and the upper surface of the top plate are perpendicular to each other, the side plates are provided with two and are spaced apart along the X direction, the side plates are provided with a guide key, a first step surface and a second step surface parallel to each other, the first step surface is fitted and connected with the locating surface of the top plate, the second step surface is fitted and connected with the side surface of the bottom plate, and the side surface of the guide key in the Y direction is fitted and connected with the inner wall surface of the keyway.

[0009] The present invention has at least the following beneficial effects: the Y-axis linear module is connected and fixed to the top plate through the slide, so that the print head assembly can be accurately moved along the Y direction; before the top plate is connected and fixed to the slide, the positioning pins extending along the Z direction are inserted into the pin holes, and the plane where the center lines of the two positioning pins are located is perpendicular to the upper surface of the top plate, so that the Z direction of the top plate is consistent with the Z direction of the slide, and the upper surface of the top plate is a horizontal plane; the two positioning pins are arranged at intervals along the X direction, and the two pin holes on the slide are arranged at intervals along the X direction, so that the X direction of the top plate is consistent with the X direction of the slide, and the XYZ direction of the top plate is the same as the XYZ direction of the slide.

[0010] Before the two side panels are connected and fixed to the top panel, the first step surface of the side panel fits with the positioning surface of the top panel, so that the X direction of the side panel is consistent with the X direction of the top panel, and the Z direction of the side panel is consistent with the Z direction of the top panel, and the XYZ direction of the side panel is the same as the XYZ direction of the top panel; moreover, a guide key is arranged between the side panel and the top panel, and the side surface of the guide key in the Y direction fits with the inner wall surface of the keyway, so that the two side panels are symmetrical about the top panel front and back, and the connection positions of the two side panels and the bottom panel are relative and not misaligned along the X direction, ensuring that each side panel can be connected and fixed to the bottom panel.

[0011] Before the bottom plate is connected and fixed to the two side plates, the second step surface of the side plate is fitted with the side surface of the bottom plate to ensure that the X direction of the bottom plate is consistent with the X direction of the side plate, and the Z direction of the bottom plate is consistent with the Z direction of the side plate, then the XYZ direction of the bottom plate is the same as the XYZ direction of the side plate, and at the same time, ensure that the bottom plate is in a horizontal plane; finally, ensure that the XYZ direction of the print head assembly is consistent with the XYZ direction of the slide of the Y-axis linear module. This design can ensure that the print head assembly has higher installation accuracy, reduce the difficulty of installation and debugging of the print head assembly, effectively reduce installation and debugging time, and improve printing accuracy.

[0012] As a further improvement of the above technical solution, the side panel and the top panel are movably connected, and a height adjustment component is provided on the upper part of the side panel. The height adjustment component has a first connecting end and a second connecting end. The first connecting end can move up and down relative to the second connecting end. The first connecting end is connected to the side panel, and the second connecting end is connected to the top panel.

[0013] Since the side panels and the top panel are movably connected up and down, a height adjustment component is arranged between the side panels and the top panel. The height adjustment component can drive the side panels to move up and down relative to the top panel, so that the height of the nozzle assembly installed on the bottom panel can be fine-tuned according to the needs of the printing work, which is beneficial to improving the printing effect.

[0014] As a further improvement of the above technical solution, the height adjustment assembly is located above the top plate, and the height adjustment assembly includes a connecting seat and an adjusting bolt; the connecting seat is connected to the side plate, the adjusting bolt extends up and down, the adjusting bolt passes through and is rotatably connected to the connecting seat, and is threadedly connected to the top plate.

[0015] A connecting seat is arranged on the side plate, and an adjusting bolt can be rotatably connected to the connecting seat. Moreover, the adjusting bolt is connected to the top plate through a threaded structure. When the adjusting bolt rotates around its center line, the adjusting bolt drives the connecting seat to move in the up and down directions relative to the top plate, thereby being able to simply and quickly adjust the height position of the nozzle assembly on the bottom plate.

[0016] As a further improvement of the above technical solution, the height adjustment assembly also includes a limit bolt; the limit bolt extends up and down, the limit bolt and the connecting seat are threadedly connected, and the lower end of the limit bolt abuts against the upper surface of the top plate, the connecting seat is provided with a through hole, and the top plate is provided with a third connecting hole, and the adjustment bolt passes through the through hole and is connected to the third connecting hole.

[0017] A limiting bolt is arranged on the connecting seat, and the limiting bolt is connected to the connecting seat through a threaded structure. The lower end of the limiting bolt will abut against the upper surface of the top plate, and can provide an upward force to the connecting seat to support the connecting seat; the adjusting bolt is connected to the third connecting hole through a threaded structure after passing through the through hole, and the adjusting bolt can exert a downward force on the connecting seat. Under the joint limiting action of the adjusting bolt and the limiting bolt, the connecting seat and the top plate are firmly connected to prevent the connecting seat from vibrating up and down during the movement of the 3D printing trolley and affecting the printing accuracy; the height adjustment of the bottom plate can be completed by rotating the limiting bolt and the adjusting bolt.

[0018] As a further improvement of the above technical solution, the print head assembly also includes a nozzle assembly; the nozzle assembly is provided with multiple nozzle assemblies and arranged in an array, the upper surface of the bottom plate is provided with a positioning groove, and the nozzle assembly is matched and connected with the positioning groove. The bottom plate is provided with a positioning groove, so that the nozzle assembly cooperates with the positioning groove, so that the multiple nozzle assemblies can be accurately installed on the bottom plate in an array arrangement, which helps to improve the printing accuracy.

[0019] As a further improvement of the above technical solution, both side surfaces of the nozzle assembly in the X direction are provided with connecting parts, the connecting parts are connected to the base plate with screws, the connecting parts are provided with a first positioning surface perpendicular to the X direction, one of the connecting parts is provided with a second positioning surface perpendicular to the Y direction, the positioning groove has a first positioning wall surface and a second positioning wall surface, the first positioning wall surface and the first positioning surface are in contact with each other, and the second positioning wall surface and the second positioning surface are in contact with each other.

[0020] Connecting parts are arranged on the front and rear sides of the nozzle assembly, and both connecting parts are provided with a first positioning surface perpendicular to the X direction. When the nozzle assembly is placed in the positioning groove, the first positioning surfaces of the two connecting parts can fit with the first positioning wall surface of the positioning groove, so that the front and rear ends of the nozzle assembly are both fitted and connected with the positioning groove, thereby prompting the nozzle assembly to complete positioning in the X direction; moreover, one of the connecting parts is provided with a second positioning surface perpendicular to the Y direction. When the first positioning surface fits with the first positioning wall surface, the nozzle assembly can be moved along the X direction to make the second positioning surface fit with the second positioning wall surface, prompting the nozzle assembly to complete positioning in the Y direction, and finally completing the positioning of each nozzle assembly relative to the base plate in the three-dimensional direction, so that the nozzle assembly can be accurately installed on the base plate, thereby ensuring that the 3D printing vehicle has higher printing accuracy.

[0021] As a further improvement of the above technical solution, the side panel is provided with a positioning groove, the side surface of the guide key in the Y direction is fitted and connected with the inner wall surface of the positioning groove, and the guide key is screwed to the side panel. When the guide key is installed on the side panel by screws, the side surface of the guide key in the Y direction is fitted with the inner wall surface of the positioning groove, so that the guide key is accurately connected to the side panel, avoiding the problem that the connection accuracy between the side panel and the top panel is reduced due to the poor installation accuracy of the guide key, thereby seriously affecting the printing accuracy.

[0022] As a further improvement of the above technical solution, the top plate is connected to the slide table by screws, the top plate is connected to the side plate by screws, and the side plate is connected to the bottom plate by screws. The slide table, top plate, side plate and bottom plate are connected and fixed to each other by screws, which has a good fixing effect and is easy to disassemble for maintenance of the 3D printing trolley.

[0023] In addition, the present invention also provides a method for installing a 3D printing trolley, wherein the 3D printing trolley includes a Y-axis linear module and a print head assembly, wherein the print head assembly includes a top plate, a side plate and a bottom plate, and the method for installing the 3D printing trolley includes the following steps:

[0024] The top plate is positioned and connected and fixed with the slide of the Y-axis linear module through the positioning pins, the positioning pins extend along the Z direction, two positioning pins are provided and spaced apart along the X direction, and the upper surface of the top plate is parallel to the mounting surface of the slide of the Y-axis linear module and perpendicular to the plane where the center lines of the two positioning pins are located;

[0025] The two side surfaces of the top plate in the X direction are processed into positioning surfaces, and the positioning surfaces are perpendicular to the plane where the center lines of the two positioning pins are located;

[0026] A first step surface and a second step surface parallel to each other are respectively processed on the upper and lower parts of the two side panels;

[0027] Fitting and connecting the first step surface to the positioning surface of the top plate;

[0028] A guide key is arranged on the side plate, a key slot is arranged on the positioning surface of the top plate, and the side surface of the guide key in the Y direction is fitted with the inner wall surface of the key slot;

[0029] The second step surface is fitted and connected to the side surface of the base plate.

[0030] The present invention has at least the following beneficial effects: before the top plate is connected and fixed to the slide, two positioning pins extending along the Z direction are respectively inserted into the two pin holes, and the plane where the center lines of the two positioning pins are located is perpendicular to the upper surface of the top plate, so that the upper surface of the top plate is horizontal and the Z direction of the top plate is the same as the Z direction of the slide; the two positioning pins are arranged at intervals along the X direction, and the two pin holes are also arranged at intervals along the X direction, so that the X direction of the top plate is the same as the X direction of the slide, then the XYZ direction of the top plate is consistent with the XYZ direction of the slide.

[0031] Before the two side panels are fixed to the top panel, the first step surface is fitted with the positioning surface to make the X direction of the side panel the same as the X direction of the top panel, and the Z direction of the side panel is also the same as the Z direction of the top panel, so that the XYZ direction of the side panel is consistent with the XYZ direction of the top panel; moreover, the side panel is provided with a guide key, and the side surface of the guide key in the Y direction is fitted with the inner wall surface of the keyway of the top panel, so that the two side panels are symmetrical about the top panel front and back, so that the connection positions of the two side panels and the bottom panel are relatively aligned in the X direction without misalignment, thereby ensuring that each side panel is connected and fixed to the bottom panel.

[0032] Before the bottom plate is connected and fixed to the two side plates, the second step surface is attached to the side of the bottom plate to ensure that the X direction of the bottom plate is the same as the X direction of the side plate, and the Z direction of the bottom plate is the same as the Z direction of the side plate, so the XYZ direction of the bottom plate is consistent with the XYZ direction of the side plate, and the bottom plate is ensured to be in a horizontal state without tilting, and finally the XYZ direction of the print head assembly can be ensured to be consistent with the XYZ direction of the slide of the Y-axis linear module. Such a design can ensure that the installation accuracy of the print head assembly reaches a higher level, greatly reducing the difficulty of installation and debugging of the print head assembly, and effectively reducing the installation and debugging time, greatly improving the printing accuracy.

[0033] As a further improvement of the above technical solution, after the step of fitting the second step surface to the side of the bottom plate, the following step is also included: a height adjustment component is set between the top plate and the side plate, and the height position of the bottom plate is adjusted by the height adjustment component. After the 3D printing trolley is installed, the height position of the bottom plate can be slightly adjusted by the height adjustment component, thereby adjusting the working surface of the 3D printing trolley in the height direction, so that the 3D printing trolley can work in coordination with the printing bottom plate of the working box to complete high-quality 3D printing work. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments;

[0035] Figure 1 is a structural stereogram of a 3D printing vehicle provided by an embodiment of the present invention;

[0036] Figure 2 It is a structural schematic diagram of the connection between the 3D printing trolley and the slide provided by an embodiment of the present invention;

[0037] Figure 3 yes Figure 2 Sectional view of section AA;

[0038] Figure 4 yes Figure 2 Sectional view of the middle BB section;

[0039] Figure 5 yes Figure 2 Sectional view of the CC section;

[0040] Figure 6 is a schematic structural diagram of a side panel provided by an embodiment of the present invention;

[0041] Figure 7 yes Figure 6 Cross-sectional view of the middle DD section;

[0042] Figure 8 is a schematic structural diagram of a top plate provided by an embodiment of the present invention;

[0043] Fig. 9 yes Figure 8 Cross-sectional view of section EE;

[0044] Fig.10 is a schematic structural diagram of a base plate provided by an embodiment of the present invention;

[0045] Fig.11 yes Fig.10 Cross-sectional view of section FF.

[0046] The markings in the accompanying drawings are as follows: 100, top plate; 110, positioning socket; 120, positioning pin; 130, first connecting hole; 140, second connecting hole; 150, third connecting hole; 160, keyway; 200, side plate; 210, waist-shaped connecting hole; 220, positioning groove; 230, fourth connecting hole; 240, first step surface; 250, second step surface; 260, fifth connecting hole; 270, sixth connecting hole; 300, guide key; 400, height adjustment assembly; 410, connecting seat; 420, adjusting bolt; 430, limiting bolt; 500, sealing plate; 510, louver hole; 600, bottom plate; 610, positioning groove; 620, seventh connecting hole; 630, second positioning wall; 640, first positioning wall; 700, nozzle assembly; 800, slide; 910, second positioning edge; 920, first positioning edge. DETAILED DESCRIPTION

[0047] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0048] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] In the description of the present invention, if there are words such as "several", it means one or more, "more" means two or more, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there are descriptions of first, second, and third, they are only used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0050] It should be noted that, in the accompanying drawings, the X direction is from the rear side of the mounting structure of the 3D printing vehicle to the front side; the Y direction is from the left side of the mounting structure of the 3D printing vehicle to the right side; and the Z direction is from the bottom side of the mounting structure of the 3D printing vehicle to the top side.

[0051] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0052] Reference Figures 1 to 11 , several embodiments of the installation structure and installation method of the 3D printing vehicle of the present invention are given below.

[0053] like Figures 1 to 11 As shown, the first embodiment of the present invention provides a mounting structure of a 3D printing carriage, which is a component of a 3D printing device. The mounting structure of the 3D printing carriage includes an X-axis linear module, a Y-axis linear module and a print head assembly.

[0054] The X-axis linear module and the Y-axis linear module are combined to form an XY-axis motion unit. The Y-axis linear module has a movable slide 800. After the print head assembly is installed on the slide 800 of the Y-axis linear module, the print head assembly can move in the X and Y directions under the driving action of the XY-axis motion unit, and accurately adjust the position of the print head assembly in the XY direction, so as to cooperate with the print base plate 600 of the working box that can move in the Z direction to complete the 3D printing work.

[0055] The slide table 800 is provided with pin holes. Specifically, two pin holes are provided on the lower surface of the slide table 800 , and the two pin holes are arranged at intervals along the X direction of the slide table 800 .

[0056] The structure of the print head assembly includes a side plate 200 , a top plate 100 , a bottom plate 600 and a nozzle assembly 700 .

[0057] The top plate 100 is provided with a locating pin 120, the center line of which is extended along the Z direction, and the number of the locating pins 120 is two, and the two locating pins 120 are arranged at intervals along the X direction of the top plate 100, and the two locating pins 120 correspond to the two pin holes and are matched and connected. The lower end of the locating pin 120 is connected to the top plate 100, and the upper end of the locating pin 120 is inserted into the pin hole. In the present embodiment, two locating sockets 110 are provided on the upper surface of the top plate 100, and the two locating sockets 110 are arranged at intervals along the X direction of the top plate 100. Before the top plate 100 and the slide 800 are connected and fixed, the lower end of the locating pin 120 is inserted into the locating socket 110, and then the upper end of the locating pin 120 is inserted into the pin hole of the slide 800.

[0058] It is understandable that the positioning pin 120 can be cylindrical, prismatic, etc. The positioning pin 120 can also be connected to the top plate 100 through an integrated molding process. The slide 800 and the top plate 100 can be fixed by welding, screw connection, etc. The positioning socket 110 and the pin hole are blind holes. One of the pin holes can be a waist-shaped hole.

[0059] In this embodiment, the top plate 100 is provided with a plurality of first connection holes 130 , and the slide 800 is provided with a plurality of screw holes. Screws are sequentially passed through the first connection holes 130 and the screw holes to fix the slide 800 to the top plate 100 .

[0060] Since the positioning pins 120 are inserted into the pin holes, and the plane where the center lines of the two positioning pins 120 are located (i.e., the XZ plane) is perpendicular to the upper surface of the top plate 100, the positioning pins 120 are perpendicular to the upper surface of the top plate 100, so that the Z direction of the top plate 100 is consistent with the Z direction of the slide 800, and the upper surface of the top plate 100 is a horizontal plane. In addition, the two positioning pins 120 are arranged at intervals along the X direction, and the two pin holes on the slide 800 are arranged at intervals along the X direction, so that the X direction of the top plate 100 is consistent with the X direction of the slide 800, and the XYZ direction of the top plate 100 is the same as the XYZ direction of the slide 800.

[0061] The top plate 100 has two side surfaces arranged along the X direction, which are defined as positioning surfaces. The positioning surfaces are YZ planes, and the positioning surfaces are perpendicular to the planes where the center lines of the two positioning pins 120 are located. Each positioning surface is provided with a keyway 160. It is understood that the keyway 160 may or may not penetrate the upper surface and the lower surface of the top plate 100.

[0062] In this embodiment, the upper end of the key slot 160 passes through the upper surface of the top plate 100, and the lower end of the key slot 160 passes through the lower surface of the top plate 100. The key slot 160 located at the front side of the top plate 100 opens forward, and the key slot 160 located at the rear side of the top plate 100 opens backward. The key slot 160 is located in the middle of the top plate 100 in the Y direction.

[0063] There are two side plates 200 , which are arranged at intervals along the X direction of the top plate 100 and are located at the front and rear sides of the top plate 100 , respectively.

[0064] Each side plate 200 is provided with a guide key 300, and the guide key 300 has a side surface for positioning in the Y direction. The number of the side surfaces can be two, and they are arranged at intervals along the Y direction. Before the side plate 200 and the top plate 100 are connected and fixed, the guide key 300 is inserted into the key slot 160, so that the two side surfaces of the guide key 300 correspond to the inner left wall surface and the inner right wall surface of the key slot 160 respectively.

[0065] It can be connected that the guide key 300 can be installed on the side plate 200 by welding, screw connection, etc. The guide key 300 can be in a square shape.

[0066] In this embodiment, the guide key 300 is waist-shaped when viewed along the X direction. The side plate 200 is provided with a positioning groove 220, and the positioning groove 220 is located on the side of the side plate 200 facing the top plate 100. The side plate 200 is also provided with a fifth connecting hole 260, and the central axis of the fifth connecting hole 260 extends along the X direction. The fifth connecting hole 260 is connected to the positioning groove 220, and the guide key 300 is provided with a screw hole. After the guide key 300 is placed in the positioning groove 220, a screw is used to pass through the screw hole and the fifth connecting hole 260 in sequence to fix the guide key 300 to the side plate 200. At this time, the two side surfaces of the guide key 300 in the Y direction are respectively in contact with the inner left wall surface and the inner right wall surface of the positioning groove 220.

[0067] Moreover, each side plate 200 is provided with a first step surface 240. Specifically, the first step surface 240 is provided at the upper end of the side plate 200, and the first step surface 240 is located on the side of the side plate 200 facing the top plate 100. Taking the side plate 200 located at the front side of the top plate 100 as an example, the first step surface 240 is located at the rear side of the side plate 200; taking the side plate 200 located at the rear side of the top plate 100 as an example, the first step surface 240 is located at the front side of the side plate 200.

[0068] It is understandable that the first step surface 240 is composed of a vertical surface and a horizontal surface, and the lower end of the vertical surface is connected to the horizontal surface. When one of the side panels 200 is connected and fixed to the top panel 100, the first step surface 240 is connected and fitted with the positioning surface of the top panel 100. At this time, the positioning surface of the top panel 100 is fitted with the vertical surface, and the lower surface of the top panel 100 is fitted with the horizontal surface.

[0069] Then, the top plate 100 and the side plate 200 can be fixedly connected by welding or screws. In this embodiment, the positioning surface of the top plate 100 is provided with a second connection hole 140, the central axis of the second connection hole 140 extends along the X direction, and the side plate 200 is provided with a screw hole. After the guide key 300 and the key slot 160 are connected in cooperation, screws are used to pass through the screw hole and the second connection hole 140 in sequence to achieve the fixing of the top plate 100 and the side plate 200.

[0070] Before the two side panels 200 are connected and fixed to the top panel 100, the first step surface 240 of the side panel 200 is fitted to the positioning surface of the top panel 100, so that the X direction of the side panel 200 is consistent with the X direction of the top panel 100, and the Z direction of the side panel 200 is consistent with the Z direction of the top panel 100, so that the XYZ direction of the side panel 200 is the same as the XYZ direction of the top panel 100. In addition, a guide key 300 is arranged between the side panel 200 and the top panel 100, and the side surface of the guide key 300 in the Y direction is fitted with the inner wall surface of the key slot 160, so that the two side panels 200 are symmetrical with respect to the top panel 100, so that the connection positions of the two side panels 200 and the bottom panel 600 are relative and non-displaced along the X direction, ensuring that each side panel 200 can be connected and fixed to the bottom panel 600.

[0071] Each side plate 200 is provided with a second step surface 250, and the second step surface 250 and the first step surface 240 are parallel to each other. Specifically, the lower end of the side plate 200 is provided with a second step surface 250, and the second step surface 250 is located on the side of the side plate 200 facing the top plate 100. Taking the side plate 200 located on the front side of the top plate 100 as an example, the second step surface 250 is located on the rear side of the side plate 200; taking the side plate 200 located on the rear side of the top plate 100 as an example, the second step surface 250 is located on the front side of the side plate 200.

[0072] It is understandable that the second step surface 250 is composed of a vertical surface and a horizontal surface, and the upper end of the vertical surface is connected to the horizontal surface. When one of the side panels 200 is connected and fixed to the bottom panel 600, the second step surface 250 is connected to the side surface of the bottom panel 600, and at this time, the side surface of the bottom panel 600 is in contact with the vertical surface, and the upper surface of the bottom panel 600 is in contact with the horizontal surface.

[0073] Then, the bottom plate 600 and the side plate 200 can be fixedly connected by welding, screw connection, etc. In this embodiment, the side plate 200 is provided with a fourth connection hole 230, and the bottom plate 600 is provided with a seventh connection hole 620, and the central axis of the fourth connection hole 230 and the seventh connection hole 620 extends along the X direction. After the second step surface 250 and the side surface of the bottom plate 600 are attached, screws are used to pass through the fourth connection hole 230 and the seventh connection hole 620 in sequence, so that the bottom plate 600 and the side plate 200 are connected and fixed.

[0074] Before the bottom plate 600 is connected and fixed to the two side plates 200, the second step surface 250 of the side plate 200 is fitted with the side surface of the bottom plate 600 to ensure that the X direction of the bottom plate 600 is consistent with the X direction of the side plate 200, and the Z direction of the bottom plate 600 is consistent with the Z direction of the side plate 200, then the XYZ direction of the bottom plate 600 is the same as the XYZ direction of the side plate 200, and at the same time, ensure that the bottom plate 600 is in a horizontal plane; finally, ensure that the XYZ direction of the print head assembly is consistent with the XYZ direction of the slide 800 of the Y-axis linear module.

[0075] The nozzle assembly 700 is disposed on the bottom plate 600. The nozzle assembly 700 can be fixed on the bottom plate 600 by screw mounting. It can be understood that the nozzle assembly 700 is a key component of the existing 3D printing equipment. Those skilled in the art should understand the structure and working principle of the nozzle assembly 700, which will not be described in detail here.

[0076] In this embodiment, there are multiple nozzle assemblies 700, and the multiple nozzle assemblies 700 are arranged in an array. A plurality of positioning grooves 610 are provided on the upper surface of the base plate 600. The nozzle assemblies 700 can be inserted into the positioning grooves 610 and cooperate with each other, so that the nozzle assemblies 700 can be installed on the base plate 600 more simply and accurately.

[0077] Further, the nozzle assembly 700 is provided with two connecting parts, which are respectively located on the two side surfaces of the nozzle assembly 700 in the X direction, and the connecting parts can be made of metal or plastic. Both connecting parts are provided with a first positioning surface, which is perpendicular to the X direction. Correspondingly, the positioning groove 610 is provided with a first positioning wall surface 640, which is also perpendicular to the X direction. After the nozzle assembly 700 is placed in the positioning groove 610, the nozzle assembly 700 is moved along the X direction to make the first positioning surface fit the first positioning wall surface 640, thereby completing the positioning work of the nozzle assembly 700 in the X direction.

[0078] One of the connecting parts is provided with a second positioning surface, which is perpendicular to the Y direction. Correspondingly, the positioning groove 610 is provided with a second positioning wall 630, which is also perpendicular to the Y direction. After the X-direction positioning of the nozzle assembly 700 is completed, the nozzle assembly 700 is moved along the Y direction to make the second positioning surface fit the second positioning wall 630, thereby completing the positioning of the nozzle assembly 700 in the Y direction.

[0079] Moreover, the lower surface of the connection part is in contact with the inner lower wall of the positioning groove 610. Therefore, each nozzle assembly 700 is positioned relative to the bottom plate 600 in the three-dimensional direction. Then, the connection part and the bottom plate 600 are connected and fixed by screws, so that the nozzle assembly 700 is accurately installed on the bottom plate 600, thereby ensuring that the 3D printing vehicle has a higher printing accuracy.

[0080] In this embodiment, the second positioning surface is located on the right side of the connecting portion, and the first positioning surface is located on the left side of the connecting portion. For the multiple positioning grooves 610 arranged along the X direction, two adjacent positioning grooves 610 are connected. The number of positioning grooves 610 is four, but the number of positioning grooves 610 is not limited thereto.

[0081] It can be understood that, from a top view, for the multiple positioning grooves 610 arranged along the X direction, all the second positioning walls 630 can be connected to form a second positioning edge 910; for the multiple positioning grooves 610 arranged along the Y direction, all the first positioning walls 640 can be connected to form a first positioning edge 920. Of course, the multiple positioning grooves 610 arranged along the Y direction can be staggered.

[0082] The installation structure of the 3D printing carriage adopts the above-mentioned structural design, which can ensure that the print head assembly has higher installation accuracy, reduce the difficulty of installation and debugging of the print head assembly, effectively shorten the installation and debugging time, and improve the printing accuracy.

[0083] In this embodiment, the top plate 100, the side plate 200 and the bottom plate 600 are aluminum plates. The top plate 100, the side plate 200 and the bottom plate 600 are all made of aluminum plates, which can reduce the weight of the 3D printing vehicle, thereby reducing the load of the XY axis motion unit.

[0084] In addition, the print head assembly also includes a sealing plate 500 .

[0085] There are two sealing plates 500, and the two sealing plates 500 are spaced apart in the Y direction. The two sealing plates 500 are respectively located on the left and right sides of the top plate 100, and the front and rear ends of the sealing plates 500 are respectively connected to the two side plates 200, the upper end of the sealing plate 500 is connected to the top plate 100, and the lower end of the sealing plate 500 is connected to the bottom plate 600. Therefore, the top plate 100, the side plates 200, the bottom plate 600 and the sealing plates 500 together form a closed space, and the nozzle assembly 700 located in the closed space can be well sealed and protected to prevent dust from accumulating on the nozzle assembly 700.

[0086] In this embodiment, the side panel 200 is provided with a sixth connecting hole 270, and the sealing plate 500 is correspondingly provided with a screw hole. When fixing the sealing plate 500 to the side panel 200, a screw is used to screw the screw into the screw hole and the sixth connecting hole 270, so that the sealing plate 500 can be detachably connected to the side panel 200.

[0087] Furthermore, the sealing plate 500 is provided with a louver hole 510, and the opening of the louver hole 510 is inclined downward from the inside to the outside. The sealing plate 500 is provided with an inclined louver hole 510, so that air can enter and exit the space surrounded by the top plate 100, the side plate 200, the bottom plate 600 and the sealing plate 500, dissipate heat for the nozzle assembly 700, and prevent dust from floating onto the nozzle assembly 700 and affecting the normal operation of the nozzle assembly 700.

[0088] Corresponding to the installation structure of the 3D printing vehicle provided in the first embodiment of the present invention, the embodiment of the present invention also provides an installation method of the 3D printing vehicle. The installation method of the 3D printing vehicle includes the following specific steps:

[0089] Step 1: Position and connect the top plate 100 to the slide 800 of the Y-axis linear module through the locating pins 120. At this time, the two ends of the locating pins 120 are extended along the Z direction, and there are two locating pins 120, and the two locating pins 120 are spaced apart along the X direction, so that the upper surface of the top plate 100 is parallel to the installation surface of the slide 800 of the Y-axis linear module, and the upper surface of the top plate 100 is perpendicular to the plane where the center lines of the two locating pins 120 are located.

[0090] Before the top plate 100 is connected and fixed to the slide 800, the two positioning pins 120 extending along the Z direction are respectively inserted into the two pin holes, and the plane where the center lines of the two positioning pins 120 are located is perpendicular to the upper surface of the top plate 100, so that the upper surface of the top plate 100 is horizontal and the Z direction of the top plate 100 is the same as the Z direction of the slide 800; the two positioning pins 120 are arranged at intervals along the X direction, and the two pin holes are also arranged at intervals along the X direction, so that the X direction of the top plate 100 is the same as the X direction of the slide 800, then the XYZ direction of the top plate 100 is consistent with the XYZ direction of the slide 800.

[0091] Step 2: Process the two side surfaces of the top plate 100 in the X direction into positioning surfaces, which are perpendicular to the plane where the center lines of the two positioning pins 120 are located.

[0092] Step 3: Process a first step surface 240 on the upper portion of the two side panels 200 , and process a second step surface 250 on the lower portion of the two side panels 200 . At this time, the first step surface 240 and the second step surface 250 are parallel to each other.

[0093] Step 4: When each side panel 200 is connected and fixed to the top panel 100 , the first step surface 240 is fitted and connected to the positioning surface of the top panel 100 .

[0094] Step 5: Set the guide key 300 on the side plate 200 , set the key slot 160 on the positioning surface of the top plate 100 , and fit the side surface of the guide key 300 in the Y direction with the inner wall surface of the key slot 160 .

[0095] Before the two side panels 200 are fixed to the top panel 100, the first step surface 240 is fitted with the positioning surface, so that the X direction of the side panel 200 is the same as the X direction of the top panel 100, and the Z direction of the side panel 200 is also the same as the Z direction of the top panel 100. Therefore, the XYZ direction of the side panel 200 is consistent with the XYZ direction of the top panel 100; moreover, the side panel 200 is provided with a guide key 300, and the side surface of the guide key 300 in the Y direction is fitted with the inner wall surface of the key groove 160 of the top panel 100, so that the two side panels 200 are symmetrical about the top panel 100 front and back, so that the connection positions of the two side panels 200 and the bottom panel 600 are relatively aligned in the X direction without misalignment, thereby ensuring that each side panel 200 is connected and fixed to the bottom panel 600.

[0096] Step 6: When the bottom plate 600 is connected and fixed to the two side plates 200 respectively, the second step surface 250 is fitted and connected to the side surface of the bottom plate 600 .

[0097] Before the bottom plate 600 is connected and fixed to the two side plates 200, the second step surface 250 is attached to the side surface of the bottom plate 600 to ensure that the X direction of the bottom plate 600 is the same as the X direction of the side plate 200, and the Z direction of the bottom plate 600 is the same as the Z direction of the side plate 200. Therefore, the XYZ direction of the bottom plate 600 is consistent with the XYZ direction of the side plate 200, and ensure that the bottom plate 600 is in a horizontal state without tilting, which can ultimately ensure that the XYZ direction of the print head assembly is consistent with the XYZ direction of the slide 800 of the Y-axis linear module.

[0098] Such a design can ensure that the installation accuracy of the print head assembly reaches a higher level, greatly reducing the difficulty of installing and debugging the print head assembly, and effectively shortening the installation and debugging time, greatly improving the printing accuracy.

[0099] It is understandable that step 2 and step 3 are used to process the top plate 100 and the side plate 200, and can be performed simultaneously, and can be arranged before step 1, and can be installed after the top plate 100 and the side plate 200 are processed.

[0100] In addition, if Figures 1 to 11 As shown, the second embodiment of the present invention provides an installation structure of a 3D printing vehicle, which differs from the first embodiment in that the side panel 200 is movably connected to the top panel 100 , and a height adjustment assembly 400 is provided on the upper portion of the side panel 200 .

[0101] The height adjustment assembly 400 has a first connection end connected to the side plate 200, and a second connection end connected to the top plate 100. The first connection end can move in the up-down direction relative to the second connection end, causing the height distance between the side plate 200 and the top plate 100 to change.

[0102] Specifically, the height adjustment assembly 400 is located above the top plate 100, and the structure of the height adjustment assembly 400 includes an adjustment bolt 420 and a connection seat 410. The connection seat 410 and the side plate 200 are connected by screws. Both ends of the adjustment bolt 420 are extended in the up and down directions, the adjustment bolt 420 penetrates the connection seat 410, and is rotatably connected to the connection seat 410. The adjustment bolt 420 and the connection seat 410 can move up and down together, and the adjustment bolt 420 is threadedly connected to the top plate 100.

[0103] The top plate 100 is provided with a third connection hole 150, the central axis of which extends up and down, and the upper end of the adjusting bolt 420 can be installed at the installation through hole of the connecting seat 410 through a bearing or a retaining spring, so that the adjusting bolt 420 can only rotate relative to the connecting seat 410. The lower end of the adjusting bolt 420 is connected to the third connection hole 150 through a threaded structure.

[0104] Each side panel 200 is provided with two waist-shaped connecting holes 210, the axis of the waist-shaped connecting hole 210 extends along the X direction, and the two ends of the waist-shaped connecting hole 210 extend along the up and down directions. The top plate 100 is correspondingly provided with a second connecting hole 140. Therefore, screws can be used to pass through the waist-shaped connecting hole 210 and the second connecting hole 140 in sequence to connect the top plate 100 and the side plate 200.

[0105] A height adjustment assembly 400 is provided between the side plate 200 and the top plate 100. The height adjustment assembly 400 can drive the side plate 200 to move in the up and down directions relative to the top plate 100, so that the height of the nozzle assembly 700 installed on the bottom plate 600 can be finely adjusted according to the needs of the printing work, which is beneficial to improving the printing effect.

[0106] The height adjustment assembly 400 is provided with a screw 420. When adjusting the height position of the bottom plate 600, the screw 420 drives the connection seat 410 to move in the up-down direction relative to the top plate 100 by driving the adjustment screw 420 to rotate around its center line, so that the height position of the nozzle assembly 700 on the bottom plate 600 can be adjusted simply and quickly. After the adjustment is completed, the screws between the top plate 100 and the side plate 200 are tightened so that the top plate 100 and the side plate 200 are tightly fixed.

[0107] In some embodiments, the height adjustment assembly 400 further includes a limit bolt 430 .

[0108] Both ends of the limiting bolt 430 are extended in the up and down directions, the connecting seat 410 is provided with a screw hole, the limiting bolt 430 is connected to the screw hole of the connecting seat 410 through a threaded structure, and the lower end of the limiting bolt 430 can abut against the upper surface of the top plate 100. Therefore, the limiting bolt 430 provides an upward supporting force for the connecting seat 410.

[0109] The connection seat 410 is provided with a through hole with an axis extending up and down, and the top plate 100 is provided with a third connection hole 150 with an axis extending up and down. After passing through the through hole, the adjusting bolt 420 is connected to the third connection hole 150 through a threaded structure, and the adjusting bolt 420 can exert a downward force on the connection seat 410. With such a design, after the adjusting bolt 420 is screwed out of the third connection hole 150, the adjusting bolt 420 can be pulled out from the through hole of the connection seat 410, so the adjusting bolt 420 does not need to be installed on the connection seat 410 through a bearing or a retaining ring.

[0110] The number of height adjustment components 400 can be multiple and arranged in an array. In this embodiment, there are four height adjustment components 400, which are respectively located at the four corners of the top plate 100. Such a design can ensure that the bottom plate 600 remains horizontal during the adjustment of its height position, and each height adjustment component 400 is evenly stressed.

[0111] When the height position of the bottom plate 600 is adjusted, the multiple adjusting bolts 420 are rotated one by one to cause the adjusting bolts 420 to move upward relative to the top plate 100. At this time, the connecting seat 410 remains stable under the action of its own gravity and the limiting bolts 430. Then, the multiple limiting bolts 430 are rotated one by one to cause the limiting bolts 430 to move downward relative to the connecting seat 410; then, after the height position of the bottom plate 600 is adjusted, ensure that the lower end of each limiting bolt 430 abuts against the upper surface of the top plate 100; then, rotate the adjusting bolts 420 to cause the adjusting bolts 420 to have a downward limiting effect on the connecting seat 410.

[0112] Under the joint limiting action of the adjusting bolt 420 and the limiting bolt 430, the connecting seat 410 and the top plate 100 are firmly connected to prevent the connecting seat 410 from vibrating up and down during the movement of the 3D printing carriage and affecting the printing accuracy; by rotating the limiting bolt 430 and the adjusting bolt 420, the height adjustment of the bottom plate 600 can be completed.

[0113] Corresponding to the installation structure of the 3D car in the second embodiment of the present invention, the embodiment of the present invention further provides an installation method of a 3D printing car, which includes the following specific steps:

[0114] Step 1: Position and connect the top plate 100 to the slide 800 of the Y-axis linear module through the locating pins 120. The locating pins 120 extend along the Z direction. There are two locating pins 120 and they are spaced apart along the X direction. The upper surface of the top plate 100 is parallel to the mounting surface of the slide 800 of the Y-axis linear module and is perpendicular to the plane where the center lines of the two locating pins 120 are located.

[0115] Step 2: Process the two side surfaces of the top plate 100 in the X direction into positioning surfaces, which are perpendicular to the plane where the center lines of the two positioning pins 120 are located.

[0116] Step 3: Processing the upper and lower portions of the two side panels 200 to form a first step surface 240 and a second step surface 250 parallel to each other.

[0117] Step 4: Fit and connect the first step surface 240 to the positioning surface of the top plate 100 .

[0118] Step 5: Set the guide key 300 on the side plate 200 , set the key slot 160 on the positioning surface of the top plate 100 , and fit the side surface of the guide key 300 in the Y direction with the inner wall surface of the key slot 160 .

[0119] Step six: Fit and connect the second step surface 250 to the side surface of the bottom plate 600 .

[0120] Step seven: a height adjustment assembly 400 is arranged between the top plate 100 and the side plate 200 , and the height position of the bottom plate 600 is adjusted by the height adjustment assembly 400 .

[0121] It can be understood that, compared with the installation method provided in the first embodiment, the installation method of the 3D printing cart provided in the second embodiment of the present invention can, after the 3D printing cart is assembled, finely adjust the height position of the base plate 600 through the height adjustment assembly 400, thereby adjusting the working surface of the 3D printing cart in the height direction, so that the 3D printing cart can cooperate with the printing base plate 600 of the working box to complete high-quality 3D printing work.

[0122] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A mounting structure for a 3D printing vehicle, comprising a Y-axis linear module and a print head assembly, wherein the print head assembly comprises a top plate, a side plate and a bottom plate; characterized in that: The Y-axis linear module has a slide, the slide is provided with a pin hole, the top plate is provided with a positioning pin extending in the Z direction, the positioning pin is provided with two and is arranged at intervals in the X direction, the positioning pin is matched and connected with the pin hole, the top plate is connected with the slide, the two side surfaces of the top plate in the X direction are set as positioning surfaces, the positioning surfaces are provided with key grooves, the positioning surfaces, the plane where the center lines of the two positioning pins are located and the upper surface of the top plate are perpendicular to each other, the side plates are provided with two and are arranged at intervals in the X direction, the side plates are provided with guide keys, first step surfaces and second step surfaces parallel to each other, the first step surface is fitted and connected with the positioning surface of the top plate, the second step surface is fitted and connected with the side surface of the bottom plate, and the side surface of the guide key in the Y direction is fitted and connected with the inner wall surface of the key groove; The side plate and the top plate are movably connected, and a height adjustment component is provided on the upper part of the side plate. The height adjustment component has a first connection end and a second connection end. The first connection end can move up and down relative to the second connection end. The first connection end is connected to the side plate, and the second connection end is connected to the top plate. The print head assembly also includes a nozzle assembly; the nozzle assembly is provided in plurality and arranged in an array, a positioning groove is provided on the upper surface of the bottom plate, and the nozzle assembly is matched and connected with the positioning groove.

2. The installation structure of the 3D printing vehicle according to claim 1, characterized in that: The height adjustment assembly is located above the top plate, and includes a connecting seat and an adjusting bolt; the connecting seat is connected to the side plate, the adjusting bolt extends up and down, the adjusting bolt penetrates and is rotatably connected to the connecting seat, and is threadedly connected to the top plate.

3. The installation structure of the 3D printing vehicle according to claim 2, characterized in that: The height adjustment assembly also includes a limit bolt; the limit bolt extends up and down, the limit bolt and the connecting seat are threadedly connected, and the lower end of the limit bolt abuts against the upper surface of the top plate, the connecting seat is provided with a through hole, the top plate is provided with a third connecting hole, and the adjustment bolt passes through the through hole and is connected to the third connecting hole.

4. The installation structure of the 3D printing vehicle according to claim 1, characterized in that: Both side surfaces of the nozzle assembly in the X direction are provided with connecting parts, the connecting parts are connected to the bottom plate with screws, the connecting parts are provided with a first positioning surface perpendicular to the X direction, one of the connecting parts is provided with a second positioning surface perpendicular to the Y direction, the positioning groove has a first positioning wall surface and a second positioning wall surface, the first positioning wall surface is in contact with the first positioning surface, and the second positioning wall surface is in contact with the second positioning surface.

5. The installation structure of the 3D printing vehicle according to claim 1, characterized in that: The side plate is provided with a positioning groove, the side surface of the guide key in the Y direction is fitted and connected with the inner wall surface of the positioning groove, and the guide key is connected with the side plate with screws.

6. The installation structure of the 3D printing vehicle according to claim 1, characterized in that: The top plate is connected to the slide table by screws, the top plate is connected to the side plate by screws, and the side plate is connected to the bottom plate by screws.

7. A method for installing a 3D printing carriage, applied to the installation structure of the 3D printing carriage as claimed in claim 1, wherein the 3D printing carriage comprises a Y-axis linear module and a print head assembly, wherein the print head assembly comprises a top plate, a side plate and a bottom plate, wherein: The installation method of the 3D printing vehicle includes the following steps: The top plate is positioned and connected and fixed with the slide of the Y-axis linear module through the positioning pins, the positioning pins extend along the Z direction, two positioning pins are provided and spaced apart along the X direction, and the upper surface of the top plate is parallel to the mounting surface of the slide of the Y-axis linear module and perpendicular to the plane where the center lines of the two positioning pins are located; The two side surfaces of the top plate in the X direction are processed into positioning surfaces, and the positioning surfaces are perpendicular to the plane where the center lines of the two positioning pins are located; A first step surface and a second step surface parallel to each other are respectively processed on the upper and lower parts of the two side panels; Fitting and connecting the first step surface to the positioning surface of the top plate; A guide key is arranged on the side plate, a key slot is arranged on the positioning surface of the top plate, and the side surface of the guide key in the Y direction is fitted with the inner wall surface of the key slot; Fitting and connecting the second step surface to the side surface of the bottom plate; After the step of fitting and connecting the second step surface to the side surface of the bottom plate, the method further includes the following steps: arranging a height adjustment component between the top plate and the side plate, and adjusting the height position of the bottom plate by the height adjustment component.

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