3D printer rack and 3D printing equipment

Abstract

The utility model provides a 3D printer rack and 3D printing equipment. The 3D printer rack comprises a rack body, a supporting and guiding assembly, a lifting part and a driving assembly, and the rack body comprises a base and a top seat which are arranged in a spaced mode; the supporting and guiding assembly is located between the base and the top seat and comprises four shaft pieces, the four shaft pieces are evenly distributed at one end of the base, and the top seat is connected to the ends, away from the base, of the four shaft pieces in a supporting mode; the lifting piece is matched with the four shaft pieces in a sliding mode and located between the base and the top base. The driving assembly comprises a driving mechanism and two lead screws, the driving mechanism is in transmission connection with the two lead screws, and the two lead screws are configured to drive the lifting part to slide along the shaft part. Thus, the 3D printer rack is connected with the base and the top seat through the four shaft pieces, the stability is better, the shaft pieces play a role in guiding the lifting piece and also play a role in supporting the top seat, and the structure of the 3D printer rack is simplified.

Description

Technical Field

[0001] The present application relates to the field of 3D printing technology, and in particular to a 3D printer frame and a 3D printing device. Background Art

[0002] The frame of a stereolithography 3D printer generally consists of two bases and a lifting plate. The lifting plate carries the molding platform and can be lifted and lowered between the two bases to move the molding platform closer to or farther from the material tray carried by one of the bases. However, not only is an optical axis set between the two bases to guide the sliding of the lifting plate, but a shell is also set to connect the two bases so that the shell supports the base located above, resulting in a complex structure of the entire frame and high cost. Utility Model Content

[0003] The present application provides a 3D printer frame and a 3D printing device to solve the problems of complex structure and high cost of the 3D printer frame in the known technology.

[0004] In a first aspect, the present application provides a 3D printer frame, comprising a frame body, a support and guide assembly, a lifting member and a driving assembly, wherein the frame body comprises a base and a top seat arranged at intervals; the support and guide assembly is located between the base and the top seat, and comprises four shaft members, wherein the four shaft members are evenly distributed at one end of the base, and the top seat support is connected to one end of the four shaft members away from the base; the lifting member can be slidably matched with the four shaft members and is located between the base and the top seat; the driving assembly comprises a driving mechanism and two lead screws, wherein the driving mechanism is transmission-connected to the two lead screws, and the two lead screws are configured to drive the lifting member to slide along the shaft member.

[0005] In a possible embodiment, four first connecting holes are opened at one end of the base close to the top seat, and the four first connecting holes are respectively arranged at four corners of the base. The four first connecting holes are arranged corresponding to the four shaft members, and each of the first connecting holes is used to allow one end of one of the shaft members to be fitted therein.

[0006] In a possible embodiment, four second connecting holes are opened at one end of the top seat close to the base, and the four second connecting holes are respectively arranged at four corners of the top seat. The four second connecting holes are arranged corresponding to the four shaft members, and each second connecting hole is used to allow the other end of one of the shaft members to be fitted therein.

[0007] In a possible implementation manner, the lifting member is provided with four through holes, the four through holes are arranged corresponding to the four shaft members, and each of the through holes is for one shaft member to pass through.

[0008] In a possible implementation, the four shafts are arranged in parallel, and the two lead screws are arranged parallel to the shafts, and the two lead screws pass through the lifting member to drive the lifting member to move along the extension direction of the shaft.

[0009] In a possible embodiment, the top seat includes two first connecting members and two second connecting members, the two first connecting members are arranged in parallel and spaced apart, the extension direction of the second connecting member is perpendicular to the extension direction of the first connecting member, and the two second connecting members are respectively connected to the opposite ends of the two first connecting members, and the second connecting holes are respectively opened at both ends of each of the first connecting members.

[0010] In a possible implementation, the top seat further includes a connecting seat, which is clamped between the first connecting member and the second connecting member and is used to install a slide rail, and the connecting seat is respectively connected to the first connecting member and the second connecting member.

[0011] In a possible implementation manner, connecting portions are convexly provided at both ends of the first connecting member, and bending portions are provided at both ends of the second connecting member, and the bending portions are wrapped around the outer sides of the connecting portions;

[0012] One end of the connecting portion away from the first connecting member abuts against the inner wall of the bending portion, and a first groove is formed between the bending portion and the end of the first connecting member, and the first groove accommodates the connecting seat.

[0013] In a possible implementation, along the extension direction of the second connecting member, a second groove is provided on one side of the bending portion close to the connecting seat, and the connecting portion is accommodated in the second groove and is respectively connected to the bending portion and the connecting seat.

[0014] In a possible embodiment, the base is provided with two mounting holes, and the two mounting holes are arranged on opposite sides of an end surface of the base close to the top seat. The two mounting holes are arranged corresponding to the two lead screws, and one end of each lead screw can be rotatably received in one of the mounting holes.

[0015] In a possible embodiment, the driving mechanism includes two motors, the two motors are arranged at one end of the base away from the top seat, and are arranged corresponding to the two lead screws, and one end of each lead screw passing through the mounting hole is transmission-connected to one of the motors.

[0016] In a possible embodiment, the drive assembly further includes two lead screw nuts, which are fixed to the lifting member, the two lead screws are correspondingly arranged with the two lead screw nuts, and each lead screw nut can be slidably mounted on the outer periphery of one of the lead screws.

[0017] In a second aspect, an embodiment of the present application further provides a 3D printing device, comprising a main body and the above-mentioned 3D printer frame, wherein the main body is installed on the 3D printer frame.

[0018] The 3D printer frame of the present application sets a shaft between the base and the top seat, and the shaft not only guides the lifting member, but also supports the top seat. Compared with the structure of setting a shell to support and connect the base and the top seat, the shaft used for guiding directly supports and connects the base and the top seat, which can simplify the structure of the 3D printer frame and reduce costs. In addition, the number of shafts is set to four and evenly distributed, which can improve the stability of the connection between the base and the top seat. At the same time, the number of lead screws is set to two, and cooperates with the four shafts to greatly improve the stability of the lifting member during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. 1 is a three-dimensional schematic diagram of a 3D printer frame of the present application in one embodiment.

[0020] Figure 2 FIG. 1 is a three-dimensional schematic diagram of a 3D printer frame of the present application from another perspective in one embodiment.

[0021] Figure 3 for Figure 1 Schematic cross-sectional view of the 3D printer frame along the III-III direction.

[0022] Figure 4 FIG. 1 is an exploded schematic diagram of a 3D printer frame of the present application in one embodiment.

[0023] Figure 5 for Figure 1 A partial enlarged schematic diagram of the 3D printer frame corresponding to area A.

[0024] Figure 6 for Figure 5 An exploded schematic diagram of the top seat of the 3D printer frame in one embodiment.

[0025] Figure 7 for Figure 2 A partial enlarged schematic diagram of the 3D printer frame corresponding to area B.

[0026] Figure 8 for Figure 7 An exploded schematic diagram of the top seat of the 3D printer frame in one embodiment.

[0027] Fig. 9 This is a schematic diagram of the structure of a 3D printing device in one embodiment of the present application.

[0028] Description of main component symbols:

[0029] 3D Printer Frame 100

[0030] Frame 10

[0031] Top seat 11

[0032] The second connection hole 110

[0033] The first connecting member 111

[0034] First opening 1110

[0035] Connection part 1111

[0036] Boss 1112

[0037] First tank 1113

[0038] The second connecting member 112

[0039] The second opening 1120

[0040] Bending portion 1121

[0041] Second tank 1122

[0042] Connecting seat 113

[0043] The third opening 1130

[0044] Base 12

[0045] First connection hole 121

[0046] Mounting holes 122

[0047] Mounting cavity 123

[0048] Support guide assembly 20

[0049] Shaft 21

[0050] Lifting parts 30

[0051] Perforation 31

[0052] Mounting section 32

[0053] Fixing hole 33

[0054] Drive assembly 40

[0055] Screw 41

[0056] Driving mechanism 42

[0057] Motor 421

[0058] Screw nut 43

[0059] Linear bearing 50

[0060] Slide 60

[0061] 3D printing equipment 200

[0062] Main body 210

[0063] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0064] The following description will refer to the accompanying drawings to more fully describe the content of the present application. Shown in the accompanying drawings are exemplary embodiments of the present application. However, the present application can be implemented in many different forms and should not be construed as being limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. Similar reference numerals represent identical or similar components.

[0065] The terms used herein are only used for the purpose of describing specific exemplary embodiments and are not intended to limit the present application. As used herein, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to also include the plural forms. In addition, when used herein, "including" and / or "comprising" and / or "having", integers, steps, operations, components and / or components, but do not exclude the existence or addition of one or more other features, regions, integers, steps, operations, components and / or groups thereof.

[0066] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this application belongs. In addition, unless explicitly defined herein, terms such as those defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the relevant technology and the content of this application, and will not be interpreted as an idealized or overly formal meaning.

[0067] The specific implementation methods of the present application are further described in detail below with reference to the accompanying drawings.

[0068] like Figure 1 to Figure 2 As shown, this embodiment provides a 3D printer frame 100, which is specifically applied to a light-curing 3D printer. The 3D printer frame 100 includes a frame body 10, a support guide assembly 20, a lifting member 30 and a driving assembly 40.

[0069] The frame 10 includes a base 12 and a top seat 11 which are arranged at intervals. The base 12 is used to place the 3D printer frame 100, and the top seat 11 is used to install other devices, such as a spraying device. The support guide assembly 20 is located between the base 12 and the top seat 11, and includes four shaft members 21, and the four shaft members 21 have the same shape and size. The four shaft members 21 are arranged parallel to each other and at intervals, and the extension direction of the shaft members 21 is perpendicular to the end surface of the base 12 close to the top seat 11. The four shaft members 21 are evenly distributed at one end of the base 12, and the top seat 11 is supported and connected to the end of the four shaft members 21 away from the base 12, so that the top seat 11 is supported by the four shaft members 21, and the top seat 11 and the base 12 are fixed by the four shaft members 21, which can improve the stability of the connection between the top seat 11 and the base 12.

[0070] The lifting member 30 can be slidably matched with the four shaft members 21 and is located between the base 12 and the top seat 11, so that the lifting member 30 can slide up and down in the space between the base 12 and the top seat 11 along the extension direction of the shaft members 21. The lifting member 30 can be used to carry the molding platform, and then the distance between the molding platform and other devices such as the spraying device installed on the top seat 11 can be adjusted through the lifting member 30.

[0071] The driving assembly 40 includes a driving mechanism 42 and two lead screws 41 , wherein the driving mechanism 42 is drivingly connected to the two lead screws 41 . The two lead screws 41 are configured to drive the lifting member 30 to slide along the shaft member 21 .

[0072] The lifting member 30 and the two lead screws 41 form a lead screw nut pair. When the driving mechanism 42 drives the two lead screws 41 to rotate, the lead screws 41 drive the lifting member 30 to slide back and forth along the extension direction of the lead screws 41. The two lead screws 41 are arranged in parallel and at intervals to transmit and connect different parts of the lifting member 30, thereby improving the stability of the lifting member 30 during movement. The extension direction of the lead screw 41 is parallel to the extension direction of the shaft member 21, and the lifting member 30 can be guided by the four shaft members 21 to ensure the straightness of the lifting member 30 during movement.

[0073] Thus, the 3D printer frame 100 of the present application, by setting the shaft 21 between the base 12 and the top seat 11, the shaft 21 not only guides the lifting member 30, but also supports the top seat 11. Compared with the structure of setting an additional shell to support the connection between the base 12 and the top seat 11, the shaft 21 used for guidance directly supports the connection between the base 12 and the top seat 11, which can simplify the structure of the 3D printer frame 100 and reduce costs. In addition, the number of shafts 21 is set to four and evenly distributed, which can improve the stability of the connection between the base 12 and the top seat 11. At the same time, the number of lead screws 41 is set to two, and cooperates with the four shafts 21, which greatly improves the stability and straightness of the lifting member 30 during movement.

[0074] Please combine again Figures 1 to 4In one embodiment, the base 12 is arranged in a square structure, and one end of the base 12 close to the top seat 11 is provided with four first connection holes 121. It can be understood that the four first connection holes 121 can be through holes or blind holes.

[0075] The four first connection holes 121 are respectively arranged at the four corners of the base 12 and are roughly distributed in a "rectangular" shape. The four first connection holes 121 are roughly located at the edges of the four corners of the base 12 to maximize the space surrounded by the four first connection holes 121.

[0076] The four first connection holes 121 are correspondingly disposed to the four shaft members 21 , and each first connection hole 121 receives one end of a shaft member 21 , so that the bottom ends of the four shaft members 21 are respectively installed in the four first connection holes 121 .

[0077] In this way, the bottom ends of the four shafts 21 are respectively fixed at the four corners of the base 12, which not only can maximize the space enclosed by the four shafts 21 when the size of the base 12 is constant, but also can evenly disperse the pressure borne by the support guide assembly 20 at the four corners of the base 12, thereby improving the load-bearing effect of the base 12 and the stability of the support guide assembly 20 supporting the top seat 11.

[0078] Please combine again Figures 2 to 4 In one embodiment, the top seat 11 is provided in a square frame structure, and four second connection holes 110 are provided at one end of the top seat 11 close to the base 12, and the four second connection holes 110 are all blind holes. The four second connection holes 110 are provided at four corners of the top seat 11, and correspond to the four first connection holes 121. When the space formed by the four second connection holes 110 is limited by the positions of the four first connection holes 121 and is fixed, the top seat 11 can have a smaller size to meet the requirements of the distribution positions of the four second connection holes 110.

[0079] In addition, the four second connecting holes 110 are arranged corresponding to the four shaft members 21, and each second connecting hole 110 accommodates the other end of a shaft member 21, so that the bottom end of the shaft member 21 is fixed in the first connecting hole 121, and the top end of the shaft member 21 is fixed in the second connecting hole 110, thereby realizing the fixation between the top seat 11, the base 12, and the shaft member 21.

[0080] In this way, the top ends of the four shafts 21 are respectively fixed to the four corners of the top seat 11 , which can improve the stability and balance of the support of the top seat 11 by the support guide assembly 20 , so that the top seat 11 can always maintain a horizontal state.

[0081] Please combine again Figures 2 to 4In one embodiment, the top seat 11 includes two first connecting members 111 and two second connecting members 112. The first connecting member 111 and the second connecting member 112 are substantially in the shape of long rods, the extending direction of the first connecting member 111 is parallel to the length direction of the base 12, and the extending direction of the second connecting member 112 is parallel to the width direction of the base 12.

[0082] The two first connecting members 111 are arranged in parallel and spaced apart, the extension direction of the second connecting member 112 is perpendicular to the extension direction of the first connecting member 111, and the two second connecting members 112 are respectively connected to the opposite ends of the two first connecting members 111. The length of the second connecting member 112 is greater than the spacing between the two first connecting members 111, and the two ends of the second connecting member 112 are arranged in an arc-shaped structure to be wrapped around the two ends of the first connecting member 111, so as to facilitate the connection between the first connecting member 111 and the second connecting member 112.

[0083] The top seat 11 further includes four connection seats 113, two of which are disposed at both ends of one connection member, and the other two are disposed at both ends of another connection member. The connection seats 113 are connected to one side of the end of the first connection member 111 away from the end of the second connection member 112.

[0084] In particular, a first opening 1110 is formed at the end of the first connecting member 111, a second opening 1120 is formed at the end of the second connecting member 112, and a third opening 1130 is formed at the connecting seat 113. The extending directions of the first opening 1110, the second opening 1120, and the third opening 1130 are parallel to the extending direction of the second connecting member 112, and the first opening 1110, the second opening 1120, and the third opening 1130 are provided for fasteners such as screws to pass through so as to fix the first connecting member 111, the second connecting member 112, and the connecting seat 113.

[0085] In this way, the top seat 11 is detachably connected by two first connecting members 111, two second connecting members 112, and four connecting seats 113, so that the slide rail 60 and other mechanisms can be installed on the first connecting members 111 or the second connecting members 112 after the top seat 11 is disassembled.

[0086] Please combine again Figures 5 to 8 In one embodiment, the connecting seat 113 is clamped between the first connecting member 111 and the second connecting member 112, and is respectively connected to the first connecting member 111 and the second connecting member 112 to improve the installation stability of the connecting seat 113 and ensure that the slide rail 60 installed on the connecting seat 113 plays a stable guiding role for the sliding mechanism, etc.

[0087] Specifically, along the extension direction of the first connecting member 111, the end surfaces of both ends of the first connecting member 111 are protruding outward with connecting parts 1111, and the connecting parts 1111 are integrally formed with the first connecting member 111. The connecting parts 1111 are arranged in a sheet-like structure, and the thickness of the connecting parts 1111 is less than the thickness of the first connecting member 111.

[0088] In particular, the connection portion 1111 is located at the edge of the end surface of the end of the first connection member 111 , and along the extension direction of the second connection member 112 , the outer side surface of the connection portion 1111 is coplanar with the outer side surface of the first connection member 111 .

[0089] It is understandable that the connecting portion 1111 may also be located in the middle section of the end surface of the end portion of the first connecting member 111 .

[0090] Both ends of the second connecting member 112 are provided with a bending portion 1121. One end of the bending portion 1121 is formed integrally with the second connecting member 112, and the other end of the bending portion 1121 is bent toward the first connecting member 111 and then wrapped around the outside of the connecting portion 1111. The shape of the bending portion 1121 can be an arc shape, or a right angle shape or other shapes, which are not specifically limited in the present application.

[0091] One end of the connecting portion 1111 away from the first connecting member 111 abuts against the inner wall of the bent portion 1121. Since the thickness of the connecting portion 1111 is less than that of the first connecting member 111, a first groove 1113 is formed between the bent portion 1121 and the end of the first connecting member 111. The first groove 1113 accommodates the connecting seat 113. Along the extending direction of the first connecting member 111, one end of the connecting seat 113 abuts against the end surface of the end of the first connecting member 111, and the other end of the connecting seat 113 is adapted to the shape of the bent portion 1121 and abuts against the inner wall of the bent portion 1121, so that the connecting seat 113 is clamped between the bent portion 1121 and the first connecting member 111, thereby improving the stability of the installation of the connecting seat 113.

[0092] Along the extension direction of the second connecting member 112, a second slot 1122 is provided on one side of the bending portion 1121 close to the connecting seat 113. The connecting portion 1111 is received in the second slot 1122, and the two opposite sides of the connecting portion 1111 respectively abut against the bending portion 1121 and the connecting seat 113, so as to clamp the connecting portion 1111 between the bending portion 1121 and the connecting seat 113, and cooperate with the above-mentioned connecting seat 113 to be clamped between the bending portion 1121 and the first connecting member 111, so as to improve the stability of the connection among the first connecting member 111, the second connecting member 112, and the connecting seat 113.

[0093] In particular, the first opening 1110 is provided in the connecting portion 1111, the second opening 1120 is provided in the bending portion 1121 close to one end of the first connecting member 111 and corresponds to the position of the first opening 1110, and the third opening 1130 provided in the connecting seat 113 corresponds to the positions of the first opening 1110 and the second opening 1120, so that the connecting portion 1111, the bending portion 1121, and the connecting seat 113 are fixed by fasteners such as screws. Figures 2 to 4 In one embodiment, the two ends of each first connecting member 111 respectively open the second connecting holes 110, that is, two of the second connecting holes 110 are respectively opened at the two ends of one first connecting member 111, and the other two second connecting holes 110 are respectively opened at the two ends of another first connecting member 111. In this way, after the second connecting hole 110 is deformed and fails, only the first connecting member 111 can be replaced, which can reduce the subsequent maintenance cost.

[0094] In particular, a boss 1112 is protruded from the bottom of both ends of the first connecting member 111 . The boss 1112 is integrally formed with the first connecting member 111 , and the second connecting hole 110 is opened at the bottom of the boss 1112 .

[0095] It is understood that in another embodiment, the second connection holes 110 may also be formed on the second connection member 112. That is, two of the second connection holes 110 are formed at two ends of one second connection member 112, and the other two second connection holes 110 are formed at two ends of another second connection member 112.

[0096] Please combine again Figures 7 and 8 , and see Figures 2 to 4 In one embodiment, the base 12 is provided with two mounting holes 122, which are disposed at opposite sides of an end surface of the base 12 close to the top seat 11. The two mounting holes 122 are disposed correspondingly to the two lead screws 41, and one end of each lead screw 41 can be rotatably received in one mounting hole 122, so that the lead screw 41 can be rotatably mounted on the base 12.

[0097] Two lead screws 41 are arranged in parallel along the extension direction of the first connecting member 111 and are respectively located below the middle sections of the two second connecting members 112. The lead screw 41 is located at the middle position between the two shaft members 21 arranged along the extension direction of the second connecting member 112.

[0098] It is understandable that in another embodiment, two lead screws 41 are arranged in parallel along the extension direction of the second connecting member 112, and the two lead screws 41 are respectively located below the middle sections of the two first connecting members 111. The lead screw 41 is located at the middle position between the two shaft members 21 arranged along the extension direction of the first connecting member 111.

[0099] In particular, the extension length of the screw 41 is smaller than the distance between the base 12 and the top seat 11, and the other end of the screw 41 is spaced apart from the top seat 11, so that one end of the screw 41 serves as the installation end and the other end serves as the free end, which facilitates the disassembly and assembly of the screw 41.

[0100] It can be understood that in another embodiment, the end of the screw 41 away from the base 12 can be rotatably mounted on the first connecting member 111 or the second connecting member 112, or can be rotatably mounted on a mounting plate protruding from the base 12, etc., which can improve the stability of the screw 41 during rotation.

[0101] Please combine again Figures 2 to 4 In one embodiment, the driving mechanism 42 includes two motors 421. An installation cavity 123 is provided at one end of the base 12 away from the top seat 11. The two motors 421 are arranged at the end of the base 12 away from the top seat 11 and fixed in the installation cavity 123 to prevent the installation of the motors 421 from affecting the stability of the base 12.

[0102] The two motors 421 are correspondingly arranged with the two lead screws 41 , and one end of each lead screw 41 passing through the mounting hole 122 is transmission-connected to a motor 421 , so that the two motors 421 respectively drive the two lead screws 41 to rotate synchronously at the same speed.

[0103] It is understandable that the driving mechanism 42 may also be provided with a motor 421, and is transmission-connected to a lead screw 41. In addition, the motor 421 drives another lead screw 41 to rotate synchronously through a transmission mechanism such as a transmission belt and a transmission wheel.

[0104] Please combine again Figures 2 to 4 In one embodiment, the driving assembly 40 further includes two lead screw nuts 43, which are fixed to opposite sides of the lifting member 30. Along the extending direction of the first connecting member 111, mounting portions 32 are convexly provided on opposite sides of the two lifting members 30, and each mounting portion 32 is provided with a fixing hole 33. The two lead screw nuts 43 are respectively partially received in the two fixing holes 33, and are fixed to the mounting portions 32 by fasteners such as screws.

[0105] The two lead screws 41 are correspondingly arranged with the two lead screw nuts 43. Each lead screw nut 43 can be slidably mounted on the outer periphery of a lead screw 41, and the lead screw nut 43 is threadedly matched with the lead screw 41, so that when the lead screw 41 rotates, the lead screw 41 drives the lead screw nut 43 to slide along its extension direction, and the lead screw nut 43 then drives the lifting member 30 fixedly connected thereto to slide synchronously.

[0106] In this way, two lead screws 41 are provided, and two lead screw nuts 43 for installing the two lead screws 41 are respectively installed on opposite sides of the lifting member 30. Compared with the structure in which only one lead screw 41 is installed to drive the lifting member 30 to move, the stability and straightness of the lifting member 30 during movement can be improved.

[0107] Please combine again Figures 2 to 4 In one embodiment, the lifting member 30 is further provided with four through holes 31, and the four through holes 31 are arranged corresponding to the four shaft members 21, and each through hole 31 is for a shaft member 21 to pass through, so as to provide a guiding effect to the lifting member 30 at the same time through the four shaft members 21.

[0108] The four through holes 31 are respectively arranged at the four corners of the lifting member 30. When the positions of the four through holes 31 are determined by the four first connection holes 121, the lifting member 30 can have a smaller size to meet the distribution position requirements of the four through holes 31. At the same time, when the four shaft members 21 pass through the four corners of the lifting member 30 respectively, the four shaft members 21 can guide the four corners of the lifting member 30 respectively, balance the torque on the lifting member 30, and improve the stability and straightness of the lifting member 30 during movement.

[0109] It is worth noting that the 3D printer frame 100 further includes four linear bearings 50 . The four linear bearings 50 are respectively installed in the four through holes 31 , and the four shafts 21 are respectively provided with the four linear bearings 50 .

[0110] like Fig. 9 As shown, the embodiment of the present application further provides a 3D printing device 200, including a main body 210 and the above-mentioned 3D printer frame 100. The main body 210 is installed on the 3D printer frame 100, and the 3D printer frame 100 carries structures such as a molding platform, a nozzle, and a driving device of the main body 210.

[0111] Since the 3D printing device 200 has the above-mentioned 3D printer frame 100, the top seat 11 and the base 12 can be directly supported and connected by the shaft member 21 that guides the lifting member 30, without the need to set up an additional shell to support the top seat 11, thereby simplifying the structure of the 3D printing device 200 and reducing costs. In addition, evenly distributing the four shaft members 21 and cooperating with two symmetrically distributed lead screws 41 can improve the stability and straightness of the movement of the lifting member 30 and improve the molding effect of the 3D printing device 200.

[0112] In the above, the specific embodiments of the present application are described with reference to the accompanying drawings. However, those skilled in the art will appreciate that various changes and substitutions may be made to the specific embodiments of the present application without departing from the scope of the present application. These changes and substitutions are all within the scope defined by the present application.

Claims

1. A 3D printer frame, characterized in that: include: A frame, comprising a base and a top seat arranged at intervals; A support guide assembly is located between the base and the top seat, and includes four shafts, the four shafts are evenly distributed at one end of the base, and the top seat support is connected to one end of the four shafts away from the base; A lifting member, slidably matched with the four shaft members, and located between the base and the top seat; The driving assembly comprises a driving mechanism and two lead screws, wherein the driving mechanism is connected to the two lead screws in a transmission manner, and the two lead screws are configured to drive the lifting member to slide along the shaft member.

2. The 3D printer frame according to claim 1, characterized in that: Four first connection holes are opened at one end of the base close to the top seat, and the four first connection holes are respectively arranged at four corners of the base. The four first connection holes are arranged corresponding to the four shaft members, and each of the first connection holes is used to allow one end of one of the shaft members to be fitted therein.

3. The 3D printer frame according to claim 2, characterized in that: Four second connection holes are provided at one end of the top seat close to the base, and the four second connection holes are respectively arranged at the four corners of the top seat. The four second connection holes are arranged corresponding to the four shaft members, and each second connection hole is used to allow the other end of one of the shaft members to be fitted therein.

4. The 3D printer frame according to claim 1, characterized in that: The lifting member is provided with four through holes, and the four through holes are arranged corresponding to the four shaft members, and each of the through holes is for one shaft member to pass through.

5. The 3D printer frame according to claim 4, characterized in that: The four shafts are arranged in parallel, and the two lead screws are arranged in parallel to the shafts. The two lead screws pass through the lifting member to drive the lifting member to move along the extension direction of the shaft.

6. The 3D printer frame according to claim 3, characterized in that: The top seat includes two first connecting members and two second connecting members, the two first connecting members are arranged in parallel and spaced apart, the extension direction of the second connecting member is perpendicular to the extension direction of the first connecting member, and the two second connecting members are respectively connected to the opposite ends of the two first connecting members, and the second connecting holes are respectively opened at both ends of each of the first connecting members.

7. The 3D printer frame according to claim 6, characterized in that: The top seat also includes a connecting seat, which is clamped between the first connecting member and the second connecting member and is used to install the slide rail. The connecting seat is connected to the first connecting member and the second connecting member respectively.

8. The 3D printer frame according to claim 7, characterized in that: The two ends of the first connecting member are provided with connecting parts, and the two ends of the second connecting member are provided with bending parts, and the bending parts are wrapped around the outside of the connecting parts; One end of the connecting portion away from the first connecting member abuts against the inner wall of the bending portion, and a first groove is formed between the bending portion and the end of the first connecting member, and the first groove accommodates the connecting seat.

9. The 3D printer frame according to claim 8, characterized in that: Along the extension direction of the second connecting member, a second slot body is provided on one side of the bending portion close to the connecting seat, and the connecting portion is received in the second slot body and is respectively connected to the bending portion and the connecting seat.

10. The 3D printer frame according to claim 1, characterized in that: The base is provided with two mounting holes, which are arranged on opposite sides of the end surface of the base close to the top seat. The two mounting holes are arranged corresponding to the two lead screws, and one end of each lead screw can be rotatably accommodated in one mounting hole.

11. The 3D printer frame according to claim 10, characterized in that: The driving mechanism includes two motors, which are arranged at one end of the base away from the top seat and corresponding to the two lead screws. One end of each lead screw passing through the mounting hole is transmission-connected to one of the motors.

12. The 3D printer frame according to claim 1, characterized in that: The driving assembly also includes two lead screw nuts, which are respectively fixed on opposite sides of the lifting member. The two lead screws are correspondingly arranged with the two lead screw nuts, and each lead screw nut can be slidably mounted on the outer periphery of one lead screw.

13. A 3D printing device, characterized in that: It comprises a main body and a 3D printer frame as claimed in any one of claims 1 to 12, wherein the main body is installed on the 3D printer frame.

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