Three-dimensional forming equipment

Abstract

The invention discloses three-dimensional forming equipment which is mainly characterized in that two stand column assemblies are connected with a first supporting piece, so that the relative position of two joints of a frame body and a base is stable, displacement of the joint of the two stand column assemblies caused by connection errors, connection looseness and the like is avoided, and errors of the position and the form of the frame body are avoided; and the printing precision is ensured. According to the main technical scheme, the three-dimensional forming equipment comprises a base which comprises a first supporting piece; the portal frame unit comprises a frame body, the frame body comprises two stand column assemblies, and the two stand column assemblies are both connected with the first supporting piece. The 3D printer is mainly used for 3D printing.

Description

Technical Field

[0001] This invention relates to the field of 3D printing technology, and more particularly to a stereolithography device. Background Technology

[0002] A fused deposition modeling (FDM) 3D printer mainly consists of a profile base, a Y-axis drive assembly, a gantry, an X-axis drive assembly, a printing platform, and a print head. The printing platform is connected to the profile base via the Y-axis drive assembly. The gantry is connected to the profile base, and the X-axis drive assembly is connected to the gantry to mount the X-axis drive assembly above the profile base. The print head is connected to the X-axis drive assembly. The X-axis drive assembly drives the print head to move along the X-axis, the Y-axis drive assembly drives the printing platform to move along the Y-axis, and the gantry drives the X-axis drive assembly to move the print head along the Z-axis, achieving relative movement of the print head and printing platform in three dimensions to create a three-dimensional image.

[0003] In the existing technology, the connection method of the two column bases of the gantry is not perfect, which will cause the relative position of the two columns of the gantry to be unstable, which will easily lead to the gantry tilting and deformation, affecting the printing accuracy. Summary of the Invention

[0004] In view of this, in order to solve at least one of the above-mentioned technical problems, the present invention provides a three-dimensional forming device.

[0005] To achieve the above objectives, the present invention mainly provides the following technical solutions: This invention provides a stereolithography device for use in the field of 3D printing. The stereolithography device includes: The base includes a first support member; The gantry unit includes a frame, which includes two column assemblies, both of which are connected to a first support member.

[0006] The present invention proposes a three-dimensional forming device, which mainly uses a base to set a first support member. In the gantry unit, the two column components of the frame are connected to the first support member, so as to realize the stable connection between the frame and the base and the stable relative position of the two column components. This improves the misalignment of the connection point of the two column components caused by connection position error and loose connection, thereby ensuring the stability of the relative position of the two column components, avoiding errors in the position and shape of the frame, and thus ensuring printing accuracy. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of a stereolithography device provided in an embodiment of the present invention; Figure 2 This is an exploded view of a stereolithography device provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a gantry unit provided in an embodiment of the present invention; Figure 4 This is an exploded view of a partial structure of a gantry unit provided in an embodiment of the present invention; Figure 5 for Figure 4 A partially enlarged structural diagram of region A of the gantry unit provided in the diagram; Figure 6 An exploded view of a gantry unit provided in an embodiment of the present invention; Figure 7 for Figure 6 A partially enlarged structural diagram of region B of the gantry unit provided in the diagram; Figure 8 This is a schematic diagram of the structure of a fixing head and an adjusting head provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of a base provided in an embodiment of the present invention; Figure 10 An exploded view of a base provided in an embodiment of the present invention; Figure 11 This is a schematic diagram of a base with the top shell removed from a first-view perspective, provided by an embodiment of the present invention; Figure 12 This is a schematic diagram of the structure of a base with the top shell removed, provided in a second view according to an embodiment of the present invention; Figure 13 This is a schematic diagram of a base with the bottom shell removed from a first-view perspective, provided by an embodiment of the present invention; Figure 14 This is a schematic diagram of the structure of a base with the bottom shell removed, provided in an embodiment of the present invention, from a third-person perspective. Figure 15 A schematic diagram of a platform driving component, a first support member, and a second support member from a first perspective, provided in an embodiment of the present invention; Figure 16 A schematic diagram of a platform driving component, a first support member, and a second support member from a second perspective, provided in an embodiment of the present invention; Figure 17 A schematic diagram of a printing platform and a platform support component provided in an embodiment of the present invention; Figure 18 This is a schematic diagram of the top shell from a first-view perspective, provided as an embodiment of the present invention; Figure 19 This is a schematic diagram of the top shell structure from a second perspective, provided by an embodiment of the present invention; Figure 20 This is a schematic diagram of the top shell from a third-person perspective, provided as an embodiment of the present invention. Detailed Implementation

[0008] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the following detailed description, in conjunction with the accompanying drawings and preferred embodiments, describes in detail the specific optional implementation methods, structures, features, and effects of the stereolithography equipment proposed according to the present invention.

[0009] On the one hand, such as Figure 1-20 As shown, this embodiment of the invention provides a stereolithography device applied in the field of 3D printing. The stereolithography device includes: The base 100 includes a first support member 110; The gantry unit includes a frame 200, which includes two column assemblies 210, both of which are connected to the first support member 110.

[0010] The base 100 serves as the bottom support structure of the stereolithography equipment, resting on a support platform to support the gantry unit. In some embodiments, the gantry unit further includes a transmission assembly, a first drive unit 410, and a printhead assembly 300. The first drive unit 410 drives the printhead assembly 300 to move vertically via the transmission assembly. The vertical direction is as follows: Figure 3 and 7 The Z-axis direction is shown. The printhead assembly 300 may include an X-axis guide and a printhead. The X-axis guide is connected to a transmission assembly, and the printhead is driven by the X-axis guide, thereby driving the printhead to move in the X-axis direction. The base 100 also includes a forming platform 500, which can move in the Y-axis direction. The X-axis, Y-axis, and Z-axis directions are mutually perpendicular, thus enabling relative movement between the printhead and the printing platform 500 in three dimensions to achieve three-dimensional forming.

[0011] The base 100 can take various forms, and the first support member 110 can take various forms depending on the form of the base 100. For example, the first support member 110 may be a single structure, or it may be an integral structure with only a single first support member 110. The base 100 may be a frame structure, such as multiple profiles connected longitudinally and transversely to form a frame base 100, in which case the first support member 110 may be one of the multiple profiles. Alternatively, the base 100 may be a box structure, such as a shell with accommodating space, in which case the first support member 110 may be the shell. Or, the base 100 may be a combination of various forms, such as a shell 120 and a frame structure located within the shell 120, in which case the first support member 110 may be a single profile in the frame structure. The first support member 110 is not composed of multiple connected structures. It is understood that the first support member 110 can have a complex shape or form, such as a groove, cavity, cylinder, or a relatively complex irregular shape. The first support member 110 can also have openings, notches, etc., and can have direct or indirect connections with other components. Two column assemblies 210 are connected to the same first support member 110, such that the connection points of the two column assemblies 210 are located on the same component. In one embodiment, the first support member 110 is a strip structure extending in the X-axis direction. The first support member 110 can be an approximate plate structure, an approximate hollow cylindrical structure, an approximate groove structure, etc. Alternatively, in some other embodiments, there can be two first support members 110, with two column assemblies 210 connected to two different first support members 110. For example, when the base 100 includes a housing 120, both first support members 110 are connected to the housing 120, or the two first support members 110 are connected to form a frame structure.

[0012] The column assembly 210 is part of the frame 200 structure in the gantry unit. In use, the gantry unit can be connected and fixed as a whole to the first support member 110 of the base 100, requiring only the connection of the two column assemblies 210 and the first support member 110, making assembly and disassembly convenient. The column assembly 210 is an approximately cylindrical structure extending at least in the vertical direction, or the Z-axis direction. Two column assemblies 210 are arranged parallel and spaced apart in the X-axis direction, providing a support foundation for the transmission components and printhead assembly 300 of the gantry unit. Other structures of the gantry unit will be further described later. The column assembly 210 can be a single structure, such as a profile extending only in the vertical direction, or it can be a combination of multiple structures, such as including a profile extending in the vertical direction and a plug connected to the bottom end of the profile for connection with the first support member 110.

[0013] The column assembly 210 is connected to the first support member 110 via its bottom end. The relative positional relationship between the column assembly 210 and the first support member 110 can be such that the column assembly 210 is located above the first support member 110, and the top surface of the first support member 110 is connected to the column assembly 210. Alternatively, the column assembly 210 can be embedded in the first support member 110, such as the column assembly 210 being inserted into the first support member 110, or the first support member 110 being inserted into the column assembly 210, etc.

[0014] In some embodiments, the base 100 includes a housing 120, with a first support 110 located within the housing 120. A clearance slot may be provided on the housing 120, through which the column assembly 210 passes and connects to the first support 110 within the housing 120. Alternatively, the column assembly 210 may not extend into the housing 120, but may be screwed onto the first support 110 within the housing 120 via additional connectors, such as bolts passing through openings in the housing 120.

[0015] The three-dimensional forming equipment proposed in this embodiment of the invention mainly uses a base to set a first support member. In the gantry unit, the two column components 210 of the frame 200 are connected to the first support member 110, so as to realize the stable connection between the frame 200 and the base 100 and the stable relative position of the two column components 210. This improves the misalignment of the connection point of the two column components 210 caused by connection position error and loose connection, thereby ensuring the stability of the relative position of the two column components 210, avoiding errors in the position and shape of the frame, and thus ensuring printing accuracy.

[0016] In one embodiment, the base 100 further includes a housing 120, which includes an insert groove 121. A first support member 110 is connected to the housing 120, and at least a portion of the first support member 110 is located within the insert groove 121. The contour of the insert groove 121 is adapted to the end contour of the column assembly 210, and the end of the column assembly 210 is inserted into the insert groove 121 to connect with the first support member 110.

[0017] The embedding groove 121 can have various shapes, such as including only a single-sided opening, only a top opening, or multiple-sided openings, such as including both a top opening and side openings. The embedding groove 121 may include a groove bottom, or it may not have a groove bottom and only have groove walls. The embedding groove 121 can limit the position of the column assembly 210 through contact between its inner wall and the column assembly 210.

[0018] There are two embedding slots 121, which are spaced apart along the X-axis corresponding to the positions of the two column assemblies 210. Each column assembly 210 is embedded in one of the two embedding slots 121. The embedding slots 121 are used to limit the position of the column assembly 210, including a portion at its end. This achieves dual limiting of the relative position of the two column assemblies 210 through a single first support member 110 and a single outer shell 120, making the relative position of the column assemblies 210 more stable. Simultaneously, the covering and limiting effect of the embedding slots 121 on the column assemblies 210 further strengthens the connection and positioning of the column assemblies 210.

[0019] The relative positions of the first support member 110 and the embedding groove 121 can be varied. For example, the first support member 110 can be located at the lowest position in the Z-axis direction within the embedding groove 121, such as serving as the bottom wall of the embedding groove 121. Alternatively, the first support member 110 can be located at the middle position in the Z-axis direction of the embedding groove 121, cooperating with the structure of the column assembly 210 so that the first support member 110 can be connected to the column assembly 210 at the middle position of the embedding groove 121.

[0020] The opening direction of the embedding slot 121 can also be various. In one embodiment, the housing 120 includes a top wall and a surrounding wall, the top wall being positioned opposite the printhead of the printhead assembly 300, i.e., the top wall facing upwards during use. The embedding slot 121 includes only a top opening, which is located on the top wall of the base 100, and the column assembly 210 is inserted into the embedding slot 121 through the top opening.

[0021] The embedding groove 121 is an upward-facing groove-shaped structure. The embedding groove 121 may include surrounding walls and may or may not have a bottom wall. In use, the two column assemblies 210 of the gantry unit are inserted vertically downward into the embedding groove 121 and connected to the first support member 110.

[0022] Alternatively, in another embodiment, the embedding groove 121 includes a top opening and a side opening. The top opening is located on the top wall of the base 100, and the side opening is located on the surrounding wall of the base 100. The top opening and the side opening are connected, and the column assembly 210 is inserted into the embedding groove 121 through the top opening and the side opening.

[0023] The base 100 also includes a bottom wall located below the top wall, and a surrounding wall located between the top and bottom walls, extending along the edges of the top and bottom walls. The opening of the embedding groove 121 extends from the top wall to the surrounding wall. This arrangement allows the column assembly 210 to protrude from the side of the base 100, thereby reducing the width of the base 100 in the X-axis direction and reducing the space occupied. The opening of the embedding groove 121 may extend only from the top wall to the surrounding wall, i.e., not to the bottom wall. Alternatively, in one embodiment, the embedding groove 121 also includes a bottom opening that communicates with the side opening, i.e., the opening of the embedding groove 121 extends to the bottom wall, forming a notch structure with a through-hole in the Z-direction on both sides of the base 100. The two ends of the first support member 110 extend into the notch. This arrangement can fully utilize the height of the base 100, and the groove wall of the embedding groove 121 can limit the column assembly 210 to a greater extent in the height direction. In use, the entire gantry unit is moved downwards so that the two column assemblies 210 are vertically inserted into the embedding slots 121. After connection, the bottom end of the column assembly 210 is on the same plane as the bottom wall of the base 100 or can be slightly higher than the bottom wall of the base 100.

[0024] The column assembly 210 can be a single structure. For example, in one embodiment, the column assembly 210 includes only a column 211, which is a square column profile. Alternatively, in another embodiment, the column assembly 210 includes a column 211 and a plug assembly, with the column 211 connected to the plug assembly, and the plug assembly connected to the first support member 110. The plug assembly can be manufactured separately, allowing for flexible adjustment of the structure of the column assembly 210 and avoiding the limitations on the connection method, angle, and position caused by the profile structure when a single column 211 is directly connected to the first support member 110.

[0025] In embodiments including the insert groove 121, the outline of the insert groove 121 is adapted to the outline of at least a portion of the plug assembly, and at least a portion of the plug assembly is inserted into the insert groove 121. The post 211 may be located outside the insert groove 121, or, in some embodiments, the post 211 is also partially inserted into the insert groove 121.

[0026] In one embodiment, a first positioning member is provided in the embedding groove 121, and a second positioning member is provided on the plug assembly. The first positioning member is used to cooperate with the second positioning member to position the plug assembly. Through the cooperation of the first positioning member and the second positioning member, the position of the plug assembly can be positioned when the plug assembly is inserted into the embedding groove 121, so that the fixed position between the plug assembly and the housing 120 is more accurate and the limiting strength can be increased.

[0027] The first and second positioning elements can take various forms, such as... Figure 4 , 9As shown, the plug assembly includes one of a first positioning groove 2122 and a first positioning head 2121. A transverse rib 1210 connected to the opposite side walls of the embedding groove 121 is provided in the embedding groove 121. The other of the first positioning groove 2122 and the first positioning head 2121 is provided on the transverse rib 1210. The first positioning groove 2122 is embedded in the first positioning head 2121.

[0028] In embodiments where there are two insertion slots 121, including a top opening and a side opening, the horizontal rib 1210 can extend in the Y-axis direction, connecting to the opposite sidewalls of the insertion slot 121 in the Y-axis direction. The relative positional relationship between the horizontal rib 1210 and the first support member 110 can be varied. For example, the horizontal rib 1210 can be offset from the first support member 110, such as being arranged in the horizontal direction or in the X-axis direction. Alternatively, the horizontal rib 1210 can be located above the first support member 110, thereby increasing the area of ​​the horizontal rib 1210 within the limited space of the insertion slot 121. In embodiments where the horizontal rib 1210 is located above the first support member 110, a clearance hole or cutout is provided on the horizontal rib 1210 to allow space for the connection between the plug assembly and the first support member 110. For example, the plug assembly and the first support member 110 are connected by a first fixing bolt 215. The first support member 110 is provided with a first screw hole 113. The horizontal rib 1210 and the plug assembly are both provided with insertion holes 129 corresponding to the first screw hole 113. The first fixing bolt 215 passes through the insertion holes 129 of the outer shell 120 and the plug assembly and is screwed into the first screw hole 113 of the first support member 110. The horizontal rib 1210 is provided to ensure that the shape of the embedded groove 121 is more stable and to increase the structural strength of the outer shell 120.

[0029] The transverse rib 1210 can have various structures, such as a plate-like structure, on which at least one of a first positioning groove 2122 and a first positioning head 2121 is provided. The plug assembly is provided with a first positioning groove 2122 and a first positioning head 2121 that are adapted to the transverse rib 1210. Then, when the plug assembly is inserted into the embedding groove 121, the first positioning head 2121 is embedded in the first positioning groove 2122, thereby achieving the positioning of the plug assembly and better limiting of the plug assembly, ensuring accurate connection position and more stable connection.

[0030] In embodiments where the horizontal rib 1210 is located above the first support member 110, the horizontal rib 1210 may be connected to a bent plate, which extends downward and covers a portion of the end face of the first support member 110. The horizontal rib 1210 then covers the end face and corners of the first support member 110, preventing the first support member 110 from being exposed in the embedding groove 121 and easily scratched, and also making the base 100 appear neater.

[0031] In embodiments using the first fixing bolt 215 for connection, there are multiple first fixing bolts 215, and the insertion holes 129 corresponding to the multiple first fixing bolts 215 are respectively disposed on different sides of the first positioning groove 2122 or the first positioning head 2121. For example Figure 9 , 18 As shown in -20, for a single embedded slot 121, four first fixing bolts 215 are provided, as follows: Figure 15 As shown, the first support member 110 is provided with four first screw holes 113, and the horizontal rib 1210 and the plug assembly are each provided with four insertion holes 129 corresponding to the first screw holes 113. The horizontal rib 1210 is provided with a first positioning head 2121. The four insertion holes 129 of the horizontal rib 1210 are arranged in pairs on both sides of the first positioning head 2121, so as to better cooperate with the first positioning head 2121 to achieve the limiting.

[0032] The plug assembly can have various specific structures. For example, in one embodiment, the plug assembly includes a connector 212, a post 211 connected to the connector 212, and the connector 212 connected to the first support member 110. The post 211 and the connector 212 can be connected in an embedded manner, such as... Figure 4 As shown, the connector 212 includes a plug-in area 2123 and a connecting area 2124. A receiving groove 2111 is provided on the column 211, which is a through groove extending in the Z-axis direction. The plug-in area 2123 is located within the receiving groove 2111 and connected to the column 211. The connecting area 2124 is located outside the receiving groove 2111 and connected to the first support member 110. The plug-in connection between the column 211 and the connector 212 makes the connection between the column 211 and the connector 212 more stable and less prone to displacement. In some embodiments, the contour of the plug-in area 2123 is adapted to the contour of the receiving groove 2111, so that at least a portion of the surface of the plug-in area 2123 abuts against the inner wall surface of the receiving groove 2111, further ensuring the stability of the connection.

[0033] In one embodiment, a third positioning member is provided on the insertion area 2123, and a fourth positioning member is provided in the receiving groove 2111. The third positioning member is used to cooperate with the fourth positioning member to position the connector 212. Through the cooperation of the third and fourth positioning members, the position of the insertion area 2123 can be positioned when it is inserted into the receiving groove 2111, so as to make the fixed position between the insertion area 2123 and the column 211 more accurate and increase the limiting strength.

[0034] like Figure 4As shown, the third positioning element includes one of a second positioning groove 2125 and a second positioning head. The other positioning head is disposed within the receiving groove 2111, and the second positioning head is embedded in the second positioning groove 2125. The second positioning groove 2125 can be a strip-shaped groove extending in the extension direction of the column 211. The insertion area 2123 can be inserted into the receiving groove 2111 through the bottom opening. During insertion, the second positioning groove 2125 is aligned with the second positioning head, thereby allowing the insertion area 2123 to be pushed upwards along the extension of the column 211, ensuring accurate positioning with the column 211.

[0035] In one embodiment, the plug assembly further includes a second fixing bolt 216, through which the connector 212 is connected to the post 211. For example, a through hole is provided on the side wall of the post 211, and a screw hole is provided on the insertion area 2123. The second fixing bolt 216 fixes the insertion area 2123 to the side wall of the post 211. In some embodiments, the bottom end of the insertion area 2123 is also provided with an outwardly extending first flange. When the insertion area 2123 is inserted into the receiving groove 2111, the first flange covers the bottom end face of the post 211. A through hole may also be provided on the first flange, and a screw hole is provided on the bottom end face of the post 211. The second fixing bolt 216 is used to fix the first flange to the end face of the post 211, thereby further ensuring the stability of the connection between the connector 212 and the post 211.

[0036] The connecting area 2124 is a structure connected to the first support member 110. As described above, it includes a horizontal rib 1210. In the embodiment where the horizontal rib 1210 is provided with a first positioning head 2121, the connecting area 2124 is provided with a first positioning groove 2122. An insertion hole 129 for inserting the first fixing bolt 215 is provided in the connecting area 2124.

[0037] In some implementations, the connector 212 may be a hollow structure, thereby reducing the overall weight.

[0038] In one embodiment, the plug assembly further includes a side connector cover 213, which covers at least the exterior of the side of the post 211 that is different from the connection area 2124, the end face of the bottom of the post 211, and / or at least a portion of the area of ​​the connector 212. For example, the side connector cover 213 may include a top opening and a side opening, and is used to cover the second fixing bolt 216 on the side surface of the post 211 and the bottom of the post 211. The side connector cover 213 can be snapped onto the post 211. For example, the side connector cover 213 may include a cover body and an inwardly bent retaining plate. When the side connector cover 213 is placed on the post 211 from the outside of the opposite connection area 2124, the retaining plate engages with the inner edge of the post 211 relative to the connection area 2124, achieving horizontal limiting. Vertical limiting of the side connector cover 213 may be achieved by setting the retaining plate to engage above the connection area 2124.

[0039] In one embodiment, a fifth positioning element is connected to the side connector cover 213, and a sixth positioning element is provided on the column 211. The fifth positioning element cooperates with the sixth positioning element to position the side connector cover 213. Through the cooperation of the fifth and sixth positioning elements, the position of the side connector cover 213 can be positioned when it is placed on the outer periphery of the column 211, making the fixed position between the side connector cover 213 and the column 211 more accurate and increasing the limiting strength.

[0040] like Figure 4 As shown, one of a third positioning groove 2131 and a third positioning head can be provided on the column 211, and the other of the third positioning groove 2131 and the third positioning head is provided inside the side connector cover 213, with the third positioning head embedded in the third positioning groove. For example, the third positioning groove 2131 is provided on opposite side walls inside the side connector cover 213. The third positioning groove 2131 can extend in a horizontal direction perpendicular to the column 211. In embodiments where the plug assembly also includes a second fixing bolt 216, the third positioning head can be the nut of the second fixing bolt 216. When installing the side connector cover 213, the side connector cover 213 moves horizontally from one side of the column 211. The nut of the second fixing bolt 216 aligns with the third positioning groove 2131. As the side connector cover 213 moves, the nut is embedded in the third positioning groove 2131, thus positioning the side connector cover 213 more accurately and making the connection more stable.

[0041] In one embodiment, the plug assembly further includes a top connector cover 214, which covers at least the exterior of the connection area 2124 relative to the top side of the printhead. This allows for the concealment of the first fixing bolt 215.

[0042] In some implementations, such as Figure 5As shown, the top cover 214 includes a top cover plate 2141 and a side cover plate 2142. The side cover plate 2142 is connected to the top cover plate 2141 and extends to one side of the top cover plate 2141. The top cover plate 2141 covers the top side of the connection area 2124 relative to the print head. The side cover plate 2142 covers the periphery of the connection area 2124 on the side different from the insertion area 2123, such as surrounding the other three outer peripheries of the connection area 2124 that are different from the insertion area 2123.

[0043] In use, first connect the first fixing bolt 215, and then cover the top connector cover 214 over the connection area 2124. In embodiments where the housing 120 includes the insert groove 121, such as Figure 9 As shown, a first engaging member 1211 is provided on the wall of the embedding groove 121, and a second engaging member 2143 is provided on the side cover plate 2142 of the top connector cover 214. The top connector cover 214 is partially embedded in the embedding groove 121, and the second engaging member 2143 engages with the first engaging member 1211. For example, the first engaging member 1211 can be a slot, and the second engaging member 2143 can be a clip, with clips distributed on the side cover plates 2142 on different sides, thereby fixing the top connector cover 214. After the top connector cover 214 is fixed, the top cover plate 2141 and the top surface of the outer shell 120 can be located on the same plane.

[0044] In one embodiment, the gantry unit further includes a transmission assembly, a first drive member 410, and a printhead assembly 300, the printhead assembly 300 being connected to the transmission assembly. The transmission assembly is connected to the frame 200, the first drive member 410 is connected to the transmission assembly, and the printhead assembly 300 is connected to the transmission assembly. The first drive member 410 is used to drive the printhead assembly 300 closer to or further away from the base 100 via the transmission assembly.

[0045] The printhead assembly 300 includes an X-axis guide, an X-axis drive, and a printhead. The printhead is connected to the X-axis guide, and the X-axis drive is connected to both the X-axis guide and the printhead. The X-axis drive drives the printhead to move along the X-axis guide in the X-axis direction. The X-axis guide is connected to a transmission assembly. The first drive 410 drives the X-axis guide to move in the Z-axis direction via the transmission assembly, thereby causing the printhead to move closer to or further away from the printing platform 500 in the Z-axis direction. The transmission assembly is connected to the column assembly 210, which connects to and supports the transmission assembly.

[0046] In an embodiment where the column assembly 210 includes a column 211 and a plug assembly, the column 211 is connected to the first support member 110 via the plug assembly, and the transmission assembly and the first drive member 410 are connected to the plug assembly. The column 211 includes a receiving groove 2111, the plug assembly is at least partially located within the receiving groove 2111, the transmission assembly is located within the receiving groove 2111, the plug assembly includes a driver receiving space, and the first drive member 410 is located within the driver receiving space.

[0047] like Figure 4 As shown, the connection area 2124 of the connector 212 includes a driver receiving space with a lower opening. The first drive member 410 is inserted into the driver receiving space through the lower opening and connected to the transmission assembly located above the connector 212. The output shaft of the first drive member 410 passes through the connector 212 and is connected to the transmission assembly via a coupling. The transmission assembly is located within the receiving groove 2111, extends along the receiving groove 2111, and is connected to the X-axis guide through the slot of the receiving groove 2111. This design allows the transmission assembly and the first drive member 410 to be housed within the column assembly 210, resulting in a simpler appearance, preventing accidental contact, and making the structure more compact.

[0048] The transmission component can take many forms; in one implementation, such as Figure 6 As shown, the transmission assembly includes a lead screw 430, a guide rod 440, a lead screw nut, and a slider 460. The lead screw nut is screwed to the lead screw 430, and the slider 460 is connected to the guide rod 440. The guide rod 440 is arranged parallel to the lead screw 430 and extends in the Z-axis direction near or away from the base 100. The printhead assembly 300 is connected to the lead screw nut and the slider 460, and the first drive member 410 is connected to the lead screw 430 for driving the lead screw 430 to rotate.

[0049] The first driving component 410 drives the lead screw 430 to rotate. Through the threaded action between the lead screw 430 and the lead screw nut, the lead screw nut drives the printhead assembly 300 to move. The guide rod 440 and the lead screw 430 both extend in the Z-axis direction. The guide rod 440 plays a guiding role, allowing the printhead assembly 300 to move in the Z-axis direction.

[0050] In one implementation, such as Figure 7-8 As shown, the frame 200 also includes a fixing head 220 and an adjusting head 230. The fixing head 220 is connected to the column assembly 210, and the lead screw 430 and guide rod 440 are both connected to the adjusting head 230. The fixing head 220 and the adjusting head 230 have at least two relative positions. When the fixing head 220 and the adjusting head 230 are in different relative positions, the included angles between the lead screw 430 and the guide rod 440 and the column assembly 210 are different. A fixing member 240 is used to fix the fixing head 220 and the adjusting head 230 in one of the at least two relative positions.

[0051] The fixing head 220 and adjusting head 230 can be set at multiple positions on the column assembly 210, spaced a distance from the bottom ends of the lead screw 430 and guide rod 440. For example, if the fixing head 220 and adjusting head 230 are located at the end of the column assembly 210 furthest from the base 100, the top ends of the lead screw 430 and guide rod 440 are inserted and fixed to the adjusting head 230. There are two transmission components, each connected to one of the two columns 211, enabling connection of the printhead assembly 300 from both ends in the X-axis direction, ensuring the driving strength and stability of the printhead assembly 300. Due to installation errors and other factors, the lead screw 430 and guide rod 440 may be misaligned. By moving the adjusting head 230, the position of the top ends of the lead screw 430 and guide rod 440 can be adjusted, thereby ensuring that the extension direction of the transmission component is in the Z-axis direction, and that the lead screws 430 and guide rods 440 on both sides are parallel.

[0052] The relative positions of the fixed head 220 and the adjusting head 230 can be adjusted in various ways. For example, in one embodiment, the frame 200 further includes a crossbeam 250, which is connected to the column assembly 210. The fixed head 220 is provided with an adjusting screw hole 221, and the adjusting head 230 is provided with a waist hole 231. The fixing member 240 includes a third fixing bolt, which passes through the waist hole 231 and is screwed into the adjusting screw hole 221 of the fixed head 220. The waist hole 231 extends in the same direction as the crossbeam 250.

[0053] The adjusting head 230 can be located above the fixed head 220. The fixed head 220 is provided with a clearance cutout 222 to allow the lead screw 430 and guide rod 440 to pass through and connect with the adjusting head 230. The different relative positions of the fixed head 220 and the adjusting head 230 refer to their different relative positions in the X-axis direction or in the extension direction of the crossbeam 250. By moving the adjusting head 230, the position of the top of the lead screw 430 and guide rod 440 in the X-axis direction is changed, thereby changing the angle of the lead screw 430 and guide rod 440, so that the angle of the lead screw 430 on both sides of the column assembly 210 is consistent, that is, the lead screws 430 on both sides of the frame 200 are parallel, and the guide rods 440 on both sides are parallel. During adjustment, the third fixing bolt can be loosened, and the adjusting head 230 can be moved relative to the third fixing bolt. After the adjustment is completed, the third fixing bolt is tightened to fix the relative position of the fixing head 220 and the adjusting head 230, that is, to fix the angle of the lead screw 430 and the guide rod 440, so that the lead screws 430 on both sides and the guide rods 440 on both sides are parallel.

[0054] The fixed head 220 and the adjusting head 230 can be provided in only one set, that is, the fixed head 220 and the adjusting head 230 are provided on the top of one of the column assemblies 210, and the top of the other column assembly 210 can be provided with only the fixing frame 270. The fixing frame 270 is used to rotate the connecting screw 430 and fix the connecting guide rod 440. Alternatively, two sets of the fixed head 220 and the adjusting head 230 can be provided, that is, the top of both column assemblies 210 are provided with the fixed head 220 and the adjusting head 230, which can realize the separate adjustment of the angle of the two sets of transmission components.

[0055] In one embodiment, the frame 200 further includes corner brackets 260, which are connected to the column assembly 210. The corner brackets 260 cover the outer periphery of the fixing head 220 and the adjusting head 230 to conceal them. When only the fixing frame 270 is provided, the corner brackets 260 cover the fixing frame 270. This results in a clean appearance and prevents accidental contact.

[0056] In one embodiment, there may be two first driving members 410, each connected to one of two lead screws 430, enabling independent driving of the two lead screws 430. Alternatively, in another embodiment, there may be a single first driving member 410, connected to one of the two lead screws 430. The lifting assembly further includes a synchronization component 420 connected to both lead screws 430 to ensure synchronous transmission of the two lead screws 430.

[0057] By using a single first driving element 410, the problem of asynchronous driving between two first driving elements 410 is avoided, and the structural and control burden is reduced. The structure of the synchronization component 420 can be varied, such as in one embodiment, for example... Figure 6-7 As shown, the synchronization assembly 420 includes a timing belt 421 and two timing pulleys 422. The two timing pulleys 422 are respectively connected to two lead screws 430, and the timing belt 421 is wound around the two timing pulleys 422. Then, when one lead screw 430 rotates actively, it drives the other lead screw 430 to rotate synchronously through the timing belt 421.

[0058] In one embodiment, the frame 200 further includes a crossbeam 250 connected to two column assemblies 210. The crossbeam 250 includes a synchronization assembly receiving cavity, and the synchronization assembly 420 is at least partially located within the synchronization assembly receiving cavity of the crossbeam 250.

[0059] For example, the two ends of the crossbeam 250 are bolted to the fixing heads 220 on both sides, or the two ends of the crossbeam 250 are bolted to the fixing heads 220 and the fixing frame 270. The synchronous belt 421 is located inside the crossbeam 250, the crossbeam 250 is connected to the corner piece 260, and then the crossbeam 250, the corner piece 260 and the column 211 are matched to cover the transmission component, the first drive component 410 and the synchronous component, so that the entire frame 200 has a simple appearance.

[0060] In one embodiment, the synchronization component 420 further includes a tension adjustment component connected to the synchronization belt 421 for adjusting the tension of the synchronization belt 421. The tension adjustment component can adjust the tension of the synchronization belt 421 in various ways. For example, the tension adjustment component includes a roller pressure head and a support shell. The roller pressure head can move within the support shell and be fixed in different moving positions. A pressure block is provided inside the support shell. When the roller pressure head is in different moving positions, the distance between the pressure block and the roller pressure head on one side relative to the roller pressure head is different. Both regions of the synchronization belt 421 between the two synchronization pulleys 422 are located between the roller pressure head and the pressure block. Therefore, by changing the position of the roller pressure head, the distance between the two regions of the synchronization belt 421 between the two synchronization pulleys 422 can be changed to adjust the tension of the synchronization belt 421. Alternatively, other adjustment methods may also be used.

[0061] In one implementation, such as Figure 14-20 As shown, the stereolithography apparatus also includes a printing platform 500 and a platform support 600. The base 100 includes a housing 120 and a platform drive assembly 130. A first support 110 is at least partially located within the housing 120. The housing 120 includes a base cavity and a clearance slot 122 communicating with the base cavity. The housing 120 includes a top wall opposite the print head, and the clearance slot 122 is located on the top wall. The platform drive assembly 130 is located within the base cavity. The platform support 600 is connected to the platform drive assembly 130, passes through the clearance slot 122, and is connected to the printing platform 500. The platform drive assembly 130 is used to drive the printing platform 500 to move via the platform support 600.

[0062] The clearance slot 122 is a strip-shaped hole extending in the Y-axis direction. The clearance slot 122 can be a single hole, or the housing 120 can include two parallel clearance slots 122 spaced apart. The platform drive assembly 130 is positioned between the two clearance slots 122. The platform support 600 is connected to the platform drive assembly 130. Both sides of the platform support 600 pass through the two clearance slots 122 and connect to the printing platform 500 located above the clearance slots 122, increasing the coverage area of ​​the connection between the platform support 600 and the printing platform 500, making the connection more stable. Part of the structure of the platform support 600 and the platform drive assembly 130 are located within the inner cavity of the base, and the platform drive assembly 130 is not exposed, resulting in a simple structure for the stereolithography equipment.

[0063] In one embodiment, the platform drive assembly 130 is connected to the first support member 110. That is, the platform drive assembly 130 and the frame 200 are connected to the same component, making the relative position of the platform drive assembly 130 and the frame 200 more accurate, which in turn makes the relative position of the platform support member 600 and the printhead assembly 300 connected to the frame 200 more accurate.

[0064] Alternatively, in another embodiment, the base 100 further includes a second support 140 connected to the first support 110, and the platform drive assembly 130 connected to the second support 140.

[0065] The first support member 110 and the second support member 140 are arranged perpendicularly. The first support member 110 is an elongated strip extending in the X-axis direction, and the second support member 140 is an elongated strip extending in the Y-direction. The second support member 140 is positioned to provide support for the platform drive assembly 130 in the extending direction, making the position of the platform drive assembly 130 more stable. The second support member 140 is connected to the first support member 110. Compared with the second support member 140 being connected to the outer shell 120, this avoids positional deviations between the second support member 140 and the first support member 110 caused by deviations in the connection position, such as deformation of the outer shell 120 over time. This ensures a more accurate and stable relative position between the platform drive assembly 130 and the frame 200.

[0066] To ensure the stability of the connection between the second support member 140 and the first support member 110 and to prevent displacement after prolonged use, in one embodiment, such as Figure 15As shown, the first support member 110 includes a first top plate 111 and a first side plate 112. The first side plate 112 is connected to the side of the first top plate 111. There can be two first side plates 112, located on both sides of the first top plate 111 in the Y-axis direction and extending downward, making the first support member 110 an approximately groove-shaped structure, ensuring greater structural stability. The bottom end of the first side plate 112 can be provided with a second flange extending in the Y-axis direction, and the first side plate 112 is bolted to the outer shell 120 through the second flange.

[0067] The second support member 140 includes a second top plate 141 and a second side plate 142. The second top plate 141 includes a connecting area and a supporting area. The connecting area of ​​the second top plate 141 is located above the first top plate 111 and is in contact with the surface of the first top plate 111. The second top plate 141 is connected to the first top plate 111 at the connecting area. For example, the second top plate 141 may extend outward in the X-axis direction relative to other areas at the connecting area and be connected to the first top plate 111 by bolts. The second side plate 142 is connected to the side of the supporting area of ​​the second top plate 141. There may be two second side plates 142, located on both sides of the second top plate 141 in the X-axis direction and extending downward, making the second support member 140 an approximately groove-shaped structure. Alternatively, the second support member 140 may also include a base plate 143, which is connected to the bottom end of the second side plate 142. The second top plate 141, base plate 143, and two second side plates 142 then form a cylindrical structure in the support area, further increasing the structural stability of the second support member 140. The bottom end of the base plate 143, or the second side plate 142, can abut against the bottom wall of the outer casing 120.

[0068] The end of the second side plate 142 near the first support member 110 is connected to the first side plate 112. For example, the end of the second side plate 142 near the first support member 110 may be provided with a third flange extending outward in the X-axis direction. The second side plate 142 is bolted to the first side plate 112 through the third flange, and then cooperates with the connection area of ​​the second top plate 141 to achieve a more stable limiting connection relationship with the first support member 110.

[0069] In one embodiment, the platform drive assembly 130 includes a guide rail assembly, a second drive member 131, a transmission wheel assembly 132, and a transmission belt 133. The guide rail assembly is connected to a second support member 140. Both the second drive member 131 and the transmission wheel assembly 132 are connected to the guide rail assembly. The transmission belt 133 is wound around the output end of the second drive member 131 and the transmission wheel assembly 132. The transmission belt 133 is connected to a platform support member 600, and the platform support member 600 is slidably connected to the guide rail assembly.

[0070] The guide rail assembly extends in the Y-axis direction, and the second drive member 131 is used to drive the transmission belt 133 to move, which in turn drives the platform support member 600 to move the printing platform 500 along the guide rail assembly in the Y-axis direction.

[0071] In one embodiment, the guide rail assembly includes a guide rail profile 134 and two guide rods 135, which are respectively embedded on both sides of the guide rail profile 134. The platform support 600 includes a support body and multiple rollers. The support body is connected to the printing platform 500, and the rollers are connected to the support body. The multiple rollers are tactilely connected to the guide rods 135 from both sides of the guide rail profile 134. The transmission belt 133 is connected to the support body, and the support body passes through the clearance strip hole 122.

[0072] The guide rail profile 134 can be fixed to the second support member 140 by multiple bolts. The length of the guide rail profile 134 can be greater than that of the second support member 140. The second support member 140 serves to support and fix the guide rail profile 134 from below the middle area. A guide rod 135 is located on both sides of the guide rail profile 134 along the X-axis. Multiple rollers are rolled onto the guide rod 135 from both sides of the guide rail profile 134 along the X-axis. The rolling contact between the guide rod 135 and the rollers, compared to a sliding connection, allows for smoother movement of the platform support member 600.

[0073] In one embodiment, the transmission wheel assembly 132 includes a transmission wheel and an adjusting member. The adjusting member is connected to the guide rail assembly, and the transmission wheel is connected to the adjusting member. A transmission belt 133 is wound around the transmission wheel. The adjusting member is used to adjust the distance between the transmission wheel and the second driving member 131 to adjust the tension of the transmission belt 133.

[0074] The transmission wheel assembly 132 also includes a support base, which is connected to the guide rail profile 134. The adjusting component may include an adjusting plate and a fixing bolt. The adjusting plate is connected to the transmission wheel, and has a slotted hole extending in the Y direction. The fixing bolt passes through the slotted hole in the adjusting plate and is screwed onto the support base. By adjusting the fixed position of the adjusting plate, the position of the transmission wheel in the Y-axis direction can be adjusted, thereby adjusting the distance between the transmission wheel and the output end of the second drive component 131. When the transmission belt 133 becomes loose after prolonged use, increasing the distance between the transmission wheel and the second drive component 131 allows the transmission belt 133 to be tightened again, ensuring accurate transmission.

[0075] In one embodiment, a first window 123 is provided on the top wall of the outer casing 120, and the first window 123 is opposite to the transmission wheel assembly 132. The tension of the transmission belt 133 can be adjusted through the first window 123 without opening the outer casing 120, making adjustment more convenient. In some embodiments, the outer casing 120 also includes a first cover plate 1231, which can be opened and closed to cover the first window 123, resulting in a simple appearance and reducing the accumulation of dust and other contaminants in the inner cavity of the base.

[0076] In one embodiment, the platform support 600 is provided with a fixing part, and the transmission belt 133 is connected to the platform support 600 through the fixing part. After the transmission belt 133 passes over the output end of the second drive member 131 and the transmission wheel assembly 132, both ends of the transmission belt 133 are detachably fixed to the platform support 600 through the fixing part. In some embodiments, the platform support 600 includes a through-hole, and the fixing part is located on one side of the guide rail assembly opposite to the platform support 600. Both ends of the transmission belt 133 pass through the through-hole and are fixed to the platform support 600 through the fixing part.

[0077] The fixing part can be a pressure plate, which is bolted to the platform support 600. The end of the transmission belt 133 passes through the through-port from bottom to top and is bent between the pressure plate and the platform support 600, achieving fixation by pressure plate. The platform support 600 is used to move along the Y-axis under the drive of the transmission belt 133, so that the platform support 600 includes multiple printing positions in the Y-axis direction. The platform support 600 is used to drive the printing platform 500 to move along the guide rail assembly under the drive of the transmission belt 133, so as to switch between multiple printing positions. A second window 124 is provided on the top wall of the housing 120. The second window 124 is opposite to the platform support 600 in at least one printing position. If the multiple printing positions include extreme positions in the Y-axis direction, the platform support 600 is opposite to the second window 124 when it is in the extreme position. The transmission belt 133 can be fixed through the second window 124. If the connection at the end of the transmission belt 133 is loose, the pressure plate can be tightened. The tension of the drive belt 133 can also be adjusted by adjusting the length of the end of the pressure plate embedded in the drive belt 133. In some embodiments, the housing 120 also includes a second cover plate 1241, which can be opened and closed to cover the second window 124, making the appearance simple and reducing the accumulation of dust and other substances in the inner cavity of the base.

[0078] In one embodiment, the stereolithography device further includes multiple components 700. Components 700 may include electrical components for the operation of the stereolithography device, such as a motherboard, battery, heat sink, and power connector. The base cavity includes at least two sub-regions, which are distributed on at least different sides of the platform drive assembly 130. These different sub-regions are used to accommodate different components 700. For example, the motherboard and battery are located on opposite sides of the platform drive assembly 130, thereby reducing the mutual influence of their heat generation and avoiding excessively high local temperatures caused by concentrated heat-generating components, thus reducing the impact of high temperatures. Simultaneously, this also allows the heavier components 700 to be distributed more evenly, resulting in a more uniform weight distribution on the base 100 and greater stability during printing.

[0079] In one embodiment, the outer casing 120 includes a top shell 127 and a bottom shell 128, which are connected to form an inner cavity of the base. The top shell 127 includes a top wall, and a first support member 110 is connected to the bottom shell 128. The components inside the inner cavity of the base can be disassembled and repaired by removing the top shell 127 and the bottom shell 128. The connection method between the top shell 127 and the bottom shell 128 can be snap-fit, plug-in, bolted, etc.

[0080] In one implementation, such as Figure 18 As shown, the top shell 127 is provided with the relief strip holes 122, and the top shell 127 is provided with a plurality of first reinforcing ribs 125 on the inner wall between the relief strip holes 122. The shape of the first reinforcing ribs 125 is straight, arc, circular, wavy or irregular.

[0081] For example, the first reinforcing rib 125 can be a combination of circular and straight ribs, such as the circular reinforcing ribs being distributed in a dispersed manner, with straight reinforcing ribs provided between adjacent circular reinforcing ribs. This results in greater structural strength of the top shell 127 in the area between the clearance slots 122, preventing collapse after prolonged use.

[0082] In some embodiments, a second reinforcing rib 126 is provided along the edge of the clearance slot 122. In the aforementioned embodiments including the first window 123 and the second window 124, a third reinforcing rib is provided along the edge of the first window 123 and the second window 124, so that the edge structure of the clearance slot 122, the first window 123 and the second window 124 has high strength, and cooperates with the first reinforcing rib 125 to ensure that the outer shell 120 is not easily deformed.

[0083] This application also provides the following implementation methods: Reference numeral 1. A stereolithography device, which is applied in the field of 3D printing, the stereolithography device includes: a base 100, the base 100 including a first support member 110; The gantry unit includes a frame 200, which includes two column assemblies 210, both of which are connected to the first support member 110.

[0084] Reference numeral 2, according to the three-dimensional forming equipment of reference numeral 1, wherein the first support member 110 is an integral structure; or, the first support member 110 is two, and the two column assemblies 210 are respectively connected to the two first support members 110.

[0085] Label 3, based on the three-dimensional forming equipment of label 1, wherein, The base 100 also includes a housing 120, which includes an insert groove 121. A first support member 110 is connected to the housing 120, and at least a portion of the first support member 110 is located within the insert groove 121. The contour of the embedding groove 121 is adapted to the end contour of the column assembly 210, and the end of the column assembly 210 is inserted into the embedding groove 121 to connect with the first support member 110.

[0086] Label 4, the three-dimensional forming equipment according to label 3, wherein, The housing 120 includes a top wall and a surrounding wall, the top wall being positioned opposite the printhead; The embedding groove 121 includes a top opening located on the top wall of the base 100, and the column assembly 210 is inserted into the embedding groove 121 through the top opening. Alternatively, the embedding groove 121 includes a top opening and a side opening. The top opening is located on the top wall of the base 100, and the side opening is located on the surrounding wall of the base 100. The top opening and the side opening are connected, and the column assembly 210 is inserted into the embedding groove 121 through the top opening and the side opening.

[0087] Reference numeral 5, according to the stereolithography equipment of reference numeral 3, wherein the column assembly 210 includes a column 211 and a plug assembly, the column 211 is connected to the plug assembly, the plug assembly is connected to the first support member 110; the contour of the insert groove 121 is adapted to the contour of at least a portion of the plug assembly, and at least a portion of the plug assembly is inserted into the insert groove 121.

[0088] Label 6. According to the three-dimensional forming equipment of label 5, wherein, A first positioning element is provided in the embedded groove 121, and a second positioning element is provided on the plug assembly. The first positioning element is used to cooperate with the second positioning element to position the plug assembly. The second positioning component includes one of a first positioning groove 2122 and a first positioning head 2121. A transverse rib 1210 connected to the opposite side walls of the embedding groove 121 is provided in the embedding groove 121. The first positioning component includes the other of a first positioning groove 2122 and a first positioning head 2121. A first positioning component is provided on the transverse rib 1210. The first positioning groove 2122 is embedded in the first positioning head 2121.

[0089] Label 7. According to the three-dimensional forming equipment of label 5, wherein, The plug assembly is connected to the first support member 110 by the first fixing bolt 215; The first support member 110 is provided with a first screw hole 113, and the horizontal rib 1210 and the plug assembly are both provided with corresponding insertion holes 129. The first fixing bolt 215 passes through the insertion holes 129 of the outer shell 120 and the plug assembly and is screwed into the first screw hole 113 of the first support member 110. There are multiple first fixing bolts 215, and multiple insertion holes 129 are respectively provided on different sides of the first positioning groove 2122 or the first positioning head 2121.

[0090] Label 8. According to the three-dimensional forming equipment of label 3, wherein, The column assembly 210 includes a column 211 and a plug assembly. The plug assembly includes a connector 212. The column 211 is connected to the connector 212, and the connector 212 is connected to the first support member 110. The connector 212 includes a plug-in area 2123 and a connection area 2124. The column 211 has a receiving groove 2111. The plug-in area 2123 is located inside the receiving groove 2111 and is connected to the column 211. The connection area 2124 is located outside the receiving groove 2111 and is connected to the first support member 110. The outline of the insertion area 2123 is adapted to the outline of the receiving groove 2111 so that at least a portion of the surface of the insertion area 2123 abuts against the inner wall surface of the receiving groove 2111.

[0091] Label 9. According to the three-dimensional forming equipment of label 8, wherein, A third positioning element is provided on the insertion area 2123, and a fourth positioning element is provided in the receiving groove 2111. The third positioning element is used to cooperate with the fourth positioning element to position the connector 212. The third positioning component includes one of a second positioning groove 2125 and a second positioning head. The other of the second positioning groove 2125 and the second positioning head is provided in the receiving groove 2111, and the second positioning head is embedded in the second positioning groove 2125.

[0092] Label 10. According to the three-dimensional forming equipment of label 8, wherein, The plug assembly also includes a side connector cover 213, which covers at least the exterior of the post 211 on the side different from the connection area 2124, the end of the post 211, and / or at least a portion of the area of ​​the connector 212.

[0093] Reference numeral 11. The three-dimensional forming equipment according to reference numeral 10, wherein, A fifth positioning element is connected to the side connector cover 213, and a sixth positioning element is provided on the column 211. The fifth positioning element is used to cooperate with the sixth positioning element to position the side connector cover 213. The plug assembly also includes a second fixing bolt 216, through which the connector 212 is connected to the post 211; The fifth positioning component includes the second fixing bolt 216, and the sixth positioning component includes the third positioning groove 2131, with the nut of the second fixing bolt 216 embedded in the third positioning groove 2131.

[0094] Label 12, the three-dimensional forming equipment according to label 8, wherein, The plug assembly also includes a top connector cover 214, which covers at least the top side of the connection area 2124 relative to the printhead. The top cover 214 includes a top cover plate 2141 and a side cover plate 2142. The side cover plate 2142 is connected to the top cover plate 2141 and extends to one side of the top cover plate 2141. The top cover plate 2141 covers the top side of the connection area 2124 relative to the print head, and the side cover plate 2142 covers the periphery of the connection area 2124 that is different from the insertion area 2123. The housing includes an insert groove 121, and the plug assembly is at least partially inserted into the insert groove 121. A first engaging member 1211 is provided on the groove wall of the insert groove 121, and a second engaging member 2143 is provided on the top connector cover 214. The top connector cover 214 is partially inserted into the insert groove 121, and the second engaging member 2143 engages with the first engaging member 1211.

[0095] Label 13. According to the three-dimensional forming equipment of label 1, wherein, The gantry unit also includes a transmission assembly, a first drive unit 410, and a printhead assembly 300, the printhead assembly 300 being connected to the transmission assembly; The transmission assembly is connected to the frame 200, the first drive component 410 is connected to the transmission assembly, and the printhead assembly 300 is connected to the transmission assembly. The first drive component 410 is used to drive the printhead assembly 300 closer to or further away from the base 100 through the transmission assembly.

[0096] Reference numeral 14. The stereolithography equipment according to reference numeral 13, wherein the column assembly 210 includes a column 211 and a plug assembly, the column 211 is connected to the first support member 110 through the plug assembly, and the transmission assembly and the first drive member 410 are both connected to the plug assembly. The column 211 includes a receiving groove 2111, the plug assembly is at least partially located in the receiving groove 2111, the transmission assembly is located in the receiving groove 2111, the plug assembly includes a driver receiving space, and the first drive member 410 is located in the driver receiving space.

[0097] Reference numeral 15. The three-dimensional forming equipment according to reference numeral 13, wherein, The transmission assembly includes a lead screw 430, a guide rod 440, a lead screw nut, and a slider 460. The lead screw nut is screwed to the lead screw 430, and the slider 460 is connected to the guide rod 440. The guide rod 440 is arranged parallel to the lead screw 430 and extends in a direction close to or away from the base 100. Both the lead screw nut and the slider 460 are connected to the printhead assembly 300. The first drive member 410 is connected to the lead screw 430 and is used to drive the lead screw 430 to rotate so as to drive the printhead assembly 300 to move in the direction of approaching or away from the base 100.

[0098] Reference numeral 16. The three-dimensional forming equipment according to reference numeral 15, wherein, The frame 200 also includes a fixing head 220 and an adjusting head 230. The fixing head 220 is connected to the column assembly 210, and the lead screw 430 and the guide rod 440 are both connected to the adjusting head 230. The fixing head 220 and the adjusting head 230 have at least two relative positions. When the fixing head 220 and the adjusting head 230 are in different relative positions, the included angles between the lead screw 430 and the guide rod 440 and the column assembly 210 are different. The fixing member 240 is used to fix the fixing head 220 and the adjusting head 230 in one of the at least two relative positions.

[0099] Reference numeral 17. The three-dimensional forming equipment according to reference numeral 16, wherein, The frame 200 also includes a crossbeam 250, which is connected to two column assemblies 210; The fixed head 220 is provided with a screw hole, the adjusting head 230 is provided with a waist hole 231, the fixing member 240 includes a third fixing bolt, the third fixing bolt passes through the waist hole 231 and is screwed into the screw hole of the fixed head 220, and the waist hole 231 is in the same direction as the extension of the crossbeam 250.

[0100] Reference numeral 18. The three-dimensional forming equipment according to reference numeral 16, wherein, The frame 200 also includes corner brackets 260, which are connected to the column assembly 210 and cover the outer periphery of the fixing head 220 and the adjusting head 230.

[0101] Reference numeral 19. According to the three-dimensional forming equipment of reference numeral 15, there are two transmission components, which are respectively connected to two columns 211; there are two first driving components 410, and the two first driving components 410 are respectively connected to two lead screws 430; Alternatively, the first drive element 410 may be a single unit, which is connected to one of the two lead screws 430. The lifting assembly may also include a synchronization component 420, which is connected to the two lead screws 430 to enable the two lead screws 430 to drive synchronously.

[0102] Reference numeral 20, the three-dimensional forming equipment according to reference numeral 19, wherein, The synchronization assembly 420 includes a timing belt 421 and two timing pulleys 422. The two timing pulleys 422 are respectively connected to two lead screws 430, and the timing belt 421 is wound around the two timing pulleys 422.

[0103] Reference numeral 21. The three-dimensional forming equipment according to reference numeral 20, wherein, The frame 200 also includes a crossbeam 250 connected to two column assemblies 210. The crossbeam 250 includes a synchronization assembly receiving cavity, and the synchronization assembly 420 is at least partially located within the synchronization assembly receiving cavity of the crossbeam 250.

[0104] Reference numeral 22. The stereolithography equipment according to reference numeral 1, wherein the stereolithography equipment further includes: a printing platform 500 and a platform support 600; The base 100 includes a housing 120 and a platform drive assembly 130. The first support member 110 is at least partially located inside the housing 120. The housing 120 includes a base cavity and a clearance strip hole 122, which communicates with the base cavity. The housing 120 includes a top wall opposite to the print head, and the clearance strip hole 122 is located on the top wall. The platform drive assembly 130 is located inside the base cavity. The platform support 600 is connected to the platform drive assembly 130. The platform support 600 passes through the clearance strip hole 122 and is connected to the printing platform 500. The platform drive assembly 130 is used to drive the printing platform 500 to move through the platform support 600.

[0105] Reference numeral 23. The three-dimensional forming equipment according to reference numeral 22, wherein, Platform drive component 130 is connected to first support component 110; Alternatively, the base 100 may also include a second support 140 connected to the first support 110, and the platform drive assembly 130 connected to the second support 140.

[0106] Reference numeral 24. The three-dimensional forming equipment according to reference numeral 23, wherein, When the base 100 includes the second support member 140, the first support member 110 includes a first top plate 111 and a first side plate 112. The first side plate 112 is connected to the side of the first top plate 111 and the first side plate 112 is connected to the outer shell 120. The second support member 140 includes a second top plate 141 and a second side plate 142. The second top plate 141 includes a connecting area and a supporting area. The second top plate 141 is connected to the first top plate 111 at the connecting area. The second side plate 142 is connected to the side of the supporting area of ​​the second top plate 141. The end of the second side plate 142 near the first support member 110 is connected to the first side plate 112. The first support member 110 and the second support member 140 are arranged perpendicularly.

[0107] Reference numeral 25. The three-dimensional forming equipment according to reference numeral 23, wherein, Platform drive assembly 130 includes a guide rail assembly, a second drive component 131, a transmission wheel assembly 132, and a transmission belt 133; The guide rail assembly is connected to the second support member 140. The second drive member 131 and the transmission wheel assembly 132 are both connected to the guide rail assembly. The transmission belt 133 is wrapped around the output end of the second drive member 131 and the transmission wheel assembly 132. The transmission belt 133 is connected to the platform support member 600. The platform support member 600 is slidably connected to the guide rail assembly.

[0108] Reference numeral 26. The three-dimensional forming equipment according to reference numeral 25, wherein, The guide rail assembly includes a guide rail profile 134 and two guide rods 135. The two guide rods 135 are respectively embedded on both sides of the guide rail profile 134. The platform support 600 includes a support body and multiple rollers. The support body is connected to the printing platform 500, and the rollers are connected to the support body. The multiple rollers are tumbling to the guide rods 135 from both sides of the guide rail profile 134. The transmission belt 133 is connected to the support body, and the support body passes through the clearance strip hole 122.

[0109] Reference numeral 27. The three-dimensional forming equipment according to reference numeral 25, wherein, The transmission wheel assembly 132 includes a transmission wheel and an adjusting member. The adjusting member is connected to the guide rail assembly, the transmission wheel is connected to the adjusting member, and the transmission belt 133 is wound around the transmission wheel. The adjusting component is used to adjust the distance between the transmission wheel and the second driving component 131 to adjust the tension of the transmission belt 133; a first window 123 is provided on the top wall of the housing 120, and the first window 123 is opposite to the transmission wheel assembly 132; the housing 120 also includes a first cover plate 1231, which can be opened and closed to cover the first window 123.

[0110] Reference numeral 28. The three-dimensional forming equipment according to reference numeral 25, wherein, The platform support 600 is provided with a fixing part, and the transmission belt 133 is connected to the platform support 600 through the fixing part; the platform support 600 includes a through-hole, the fixing part is located on one side of the guide rail assembly opposite to the platform support 600, and both ends of the transmission belt 133 are connected to the through-hole and fixed to the platform support 600 through the fixing part. The platform support 600 includes multiple printing positions. The platform support 600 is used to drive the printing platform 500 to move along the guide rail assembly under the drive of the transmission belt 133, so as to switch between multiple printing positions. A second window 124 is provided on the top wall of the housing 120. The second window 124 is opposite to the platform support 600 at at least one printing position. The housing 120 also includes a second cover plate 1241, which is openable and closable to cover the second window 124.

[0111] Reference numeral 29, the stereolithography apparatus according to reference numeral 22, wherein the stereolithography apparatus further includes: a plurality of components 700; the inner cavity of the base includes at least two sub-regions, the at least two sub-regions being distributed at least on different sides of the platform drive assembly 130, the different sub-regions being used to accommodate different components 700.

[0112] Reference numeral 30, a stereolithography apparatus according to reference numeral 22, wherein the outer shell 120 includes a top shell 127 and a bottom shell 128, the top shell 127 and the bottom shell 128 being connected to form an inner cavity of the base; the top shell 127 includes a top wall, and a first support member 110 is connected to the bottom shell 128.

[0113] Reference numeral 31. The three-dimensional forming equipment according to reference numeral 30, wherein, The top shell 127 is provided with a clearance strip hole 122, and multiple first reinforcing ribs 125 are laid on the inner wall of the top shell 127. The first reinforcing ribs 125 are located between at least two clearance strip holes 122. The shape of the first reinforcing ribs 125 is straight, arc, circular, wavy or irregular; and / or, second reinforcing ribs 126 are laid on the edge of the clearance strip hole 122.

[0114] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A three-dimensional forming device, characterized in that, The stereolithography equipment, used in the field of 3D printing, includes: The base includes a first support member; A gantry unit, the gantry unit includes a frame, the frame includes two column assemblies, both of which are connected to the first support member.

2. The three-dimensional forming equipment according to claim 1, characterized in that, The first support member is an integral structure; Alternatively, there may be two first support members, with each of the two column assemblies connected to one of the two first support members.

3. The three-dimensional forming equipment according to claim 1, characterized in that, The base also includes a housing, the housing including an insert groove, the first support member being connected to the housing, and at least a portion of the first support member being located within the insert groove; The contour of the embedding groove is adapted to the end contour of the column assembly, and the end of the column assembly is inserted into the embedding groove to connect with the first support member. The housing includes a top wall and a surrounding wall, the top wall being positioned opposite the printhead; The embedding slot includes a top opening located on the top wall of the base, and the column assembly is inserted into the embedding slot through the top opening. Alternatively, the embedding groove includes a top opening and a side opening, the top opening being located on the top wall of the base, the side opening being located on the surrounding wall of the base, the top opening and the side opening being continuous, and the column assembly being inserted into the embedding groove through the top opening and the side opening.

4. The three-dimensional forming equipment according to claim 3, characterized in that, The column assembly includes a column and a plug assembly, the column being connected to the plug assembly, and the plug assembly being connected to the first support member; The contour of the insert groove is adapted to the contour of at least a portion of the plug assembly, and at least a portion of the plug assembly is inserted into the insert groove. A first positioning element is provided in the embedding groove, and a second positioning element is provided on the plug assembly. The first positioning element is used to cooperate with the second positioning element to position the plug assembly. The second positioning component includes one of a first positioning groove and a first positioning head. A transverse rib connected to the opposite side walls of the embedding groove is provided in the embedding groove. The first positioning component includes the other of a first positioning groove and a first positioning head. The first positioning component is provided on the transverse rib, and the first positioning groove is embedded in the first positioning head. The plug assembly is connected to the first support member by a first fixing bolt; The first support member is provided with a first screw hole, and the cross rib and the plug assembly are both provided with insertion holes corresponding to the first screw hole. The first fixing bolt passes through the insertion holes of the outer shell and the plug assembly and is screwed into the first screw hole of the first support member. The number of the first fixing bolts is multiple, and the multiple insertion holes are respectively located on different sides of the first positioning groove or the first positioning head.

5. The three-dimensional forming equipment according to claim 3, characterized in that, The column assembly includes a column and a plug assembly, the plug assembly includes a connector, the column is connected to the connector, and the connector is connected to the first support member; The connector includes a plug-in area and a connection area. The column has a receiving groove. The plug-in area is located inside the receiving groove and connected to the column. The connection area is located outside the receiving groove and is connected to the first support member. The outline of the insertion area is adapted to the outline of the receiving groove so that at least a portion of the surface of the insertion area abuts against the inner wall surface of the receiving groove. A third positioning element is provided on the insertion area, and a fourth positioning element is provided in the receiving groove. The third positioning element is used to cooperate with the fourth positioning element to position the connector. The third positioning element includes one of a second positioning groove and a second positioning head, and the receiving groove is provided with the other of the second positioning groove and the second positioning head, with the second positioning head embedded in the second positioning groove. The plug assembly further includes a side connector cover, which covers at least the exterior of the side of the post that is different from the connection area, the end of the post, and / or at least a portion of the area of ​​the connector. A fifth positioning element is connected to the side connector cover, and a sixth positioning element is provided on the column. The fifth positioning element is used to cooperate with the sixth positioning element to position the side connector cover. The plug assembly further includes a second fixing bolt, through which the connector is connected to the column; The fifth positioning component includes the second fixing bolt, and the sixth positioning component includes the third positioning groove, wherein the nut of the second fixing bolt is embedded in the third positioning groove; The plug assembly also includes a top connector cover, which covers at least the top side of the connection area relative to the print head; The top connector cover includes a top cover plate and a side cover plate. The side cover plate is connected to the top cover plate and extends to one side of the top cover plate. The top cover plate covers the top side of the connection area relative to the print head, and the side cover plate covers the periphery of the connection area that is different from the insertion area. The housing includes an insert groove, the plug assembly is at least partially inserted into the insert groove, a first engaging member is provided on the groove wall of the insert groove, a second engaging member is provided on the top connector cover, the top connector cover is partially inserted into the insert groove, and the second engaging member engages with the first engaging member.

6. The three-dimensional forming equipment according to claim 1, characterized in that, The gantry unit also includes a transmission assembly, a first drive component, and a printhead assembly, wherein the printhead assembly is connected to the transmission assembly. The transmission assembly is connected to the frame, the first drive member is connected to the transmission assembly, and the print head assembly is connected to the transmission assembly. The first drive member is used to drive the print head assembly closer to or further away from the base through the transmission assembly. The column assembly includes a column and a plug assembly. The column is connected to the first support member through the plug assembly. The transmission assembly and the first drive member are both connected to the plug assembly. The column includes a receiving groove, the plug assembly is at least partially located within the receiving groove, the transmission assembly is located within the receiving groove, the plug assembly includes a driver receiving space, and the first driving member is located within the driver receiving space; The transmission assembly includes a lead screw, a guide rod, a lead screw nut, and a slider. The lead screw nut is screwed to the lead screw, the slider is connected to the guide rod, and the guide rod is arranged parallel to the lead screw and extends in a direction close to or away from the base. Both the lead screw nut and the slider are connected to the printhead assembly. The first driving member is connected to the lead screw and is used to drive the lead screw to rotate, so as to drive the printhead assembly to move in a direction closer to or away from the base. The frame also includes a fixing head and an adjusting head. The fixing head is connected to the column assembly, and the lead screw and guide rod are both connected to the adjusting head. The fixing head and the adjusting head have at least two relative positions. When the fixing head and the adjusting head are in different relative positions, the included angles between the lead screw and the guide rod and the column assembly are different. A fastener, the fastener being used to fix the fixing head and the adjusting head in at least one of two relative positions; The frame also includes a crossbeam, which is connected to the two column assemblies; The fixed head is provided with a screw hole, the adjusting head is provided with a waist hole, the fixing component includes a third fixing bolt, the third fixing bolt passes through the waist hole and is screwed into the screw hole of the fixed head, and the waist hole is in the same direction as the extension of the crossbeam; The frame also includes corner pieces, which are connected to the column assembly and cover the outer periphery of the fixing head and the adjusting head.

7. The three-dimensional forming equipment according to claim 6, characterized in that, There are two transmission components, which are respectively connected to the two columns; There are two first driving components, and the two first driving components are respectively connected to the two lead screws; Alternatively, the first driving element is a single unit, and the first driving element is connected to one of the two lead screws. The lifting assembly also includes a synchronization component, which is connected to the two lead screws to enable the two lead screws to drive synchronously. The synchronization component includes a timing belt and two timing pulleys, the two timing pulleys being respectively connected to two lead screws, and the timing belt being wound around the two timing pulleys; The frame also includes a crossbeam connected to the two column assemblies. The crossbeam includes a synchronization component receiving cavity, and the synchronization component is at least partially located within the synchronization component receiving cavity of the crossbeam.

8. The three-dimensional forming equipment according to claim 1, characterized in that, The stereolithography equipment also includes: Printing platform and platform support components; The base includes a housing and a platform drive assembly. The first support member is at least partially located inside the housing. The housing includes a base cavity and a clearance strip hole, the clearance strip hole communicating with the base cavity. The housing includes a top wall opposite to the print head, and the clearance strip hole is located on the top wall. The platform drive component is located inside the base cavity, the platform support is connected to the platform drive component, the platform support passes through the clearance strip hole and is connected to the printing platform; The platform driving component is used to drive the printing platform to move via the platform support component; The platform driving component is connected to the first support component; Alternatively, the base may further include a second support member, which is connected to the first support member, and the platform drive assembly is connected to the second support member; When the base includes a second support member, the first support member includes a first top plate and a first side plate, the first side plate is connected to the side of the first top plate, and the first side plate is connected to the outer shell; The second support member includes a second top plate and a second side plate. The second top plate includes a connecting area and a supporting area. The second top plate is connected to the first top plate at the connecting area. The second side plate is connected to the side of the supporting area of ​​the second top plate. The end of the second side plate near the first support member is connected to the first side plate. The first support member is perpendicular to the second support member.

9. The three-dimensional forming equipment according to claim 8, characterized in that, The platform drive assembly includes a guide rail assembly, a second drive component, a transmission wheel assembly, and a transmission belt; The guide rail assembly is connected to the second support member, the second drive member and the transmission wheel assembly are both connected to the guide rail assembly, and the transmission belt is wound around the output end of the second drive member and the transmission wheel assembly; The transmission belt is connected to the platform support, and the platform support is slidably connected to the guide rail assembly; The guide rail assembly includes a guide rail profile and two optical rods, the two optical rods being respectively embedded on both sides of the guide rail profile. The platform support includes a support body and multiple rollers. The support body is connected to the printing platform, the rollers are connected to the support body, and the multiple rollers are rotatably connected to the optical rods from both sides of the guide rail profile. The transmission belt is connected to the support body, and the support body passes through the clearance strip hole. The transmission wheel assembly includes a transmission wheel and an adjusting member. The adjusting member is connected to the guide rail assembly, the transmission wheel is connected to the adjusting member, and the transmission belt is wound around the transmission wheel. The adjusting member is used to adjust the distance between the transmission wheel and the second driving member, so as to adjust the tension of the transmission belt; A first window is provided on the top wall of the outer casing, and the first window is opposite to the transmission wheel assembly; The outer casing also includes a first cover plate, which is openable and closable to cover the first window; The platform support is provided with a fixing part, and the transmission belt is connected to the platform support through the fixing part; The platform support includes a through-hole, the fixing part is located on the side of the platform support opposite to the guide rail assembly, and both ends of the transmission belt pass through the through-hole and are fixed to the platform support by the fixing part; The platform support includes multiple printing positions. The platform support is used to drive the printing platform to move along the guide rail assembly under the drive of the transmission belt, so as to switch between multiple printing positions. A second window is provided on the top wall of the outer casing, and the second window is opposite to at least one of the platform support members under the printing position; The housing also includes a second cover plate that can be opened and closed to cover the second window.

10. The three-dimensional forming equipment according to claim 8, characterized in that, The stereolithography equipment also includes: Multiple components; The base cavity includes at least two sub-regions, which are distributed on at least different sides of the platform drive assembly, and the different sub-regions are used to accommodate different components. The outer shell includes a top shell and a bottom shell, which are connected to form the inner cavity of the base; The top shell includes the top wall, and the first support member is connected to the bottom shell; The top shell is provided with the relief strip holes, and multiple first reinforcing ribs are laid on the inner wall of the top shell. The first reinforcing ribs are located between at least two of the relief strip holes, and the shape of the first reinforcing ribs is straight, arc-shaped, circular, wavy, or irregular. And / or, the edge of the clearance strip hole is provided with a second reinforcing rib.

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