3D printer frame and 3D printer

Abstract

Provided in the present application are a 3D printer frame and a 3D printer. The 3D printer frame comprises a frame body, a sliding seat and a sliding structure. The sliding structure comprises a rotating member, a sliding member and a connecting member, wherein the rotating member has a defined rotation axis and is configured to rotate around the rotation axis in a first direction; the sliding member is slidably arranged on the rotating member, is in transmission connection with the rotating member, and is configured to slide in a second direction with the rotation of the rotating member, the second direction being parallel to the direction of the rotation axis; and the connecting member is slidably disposed on the rotating member, and the sliding member is configured to abut against the connecting member, such that the connecting member slides in the second direction. At least a movement clearance in the first direction is provided between the connecting member and the sliding member, and the movement clearance is configured to allow the connecting member and the sliding member to move relative to each other. The sliding structure is disposed on the frame body. The sliding seat is connected to the connecting member of the sliding structure.

Description

3D printer frame and 3D printer

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202422384227.2, filed on September 27, 2024, and Chinese Patent Application No. 202422393632.0, filed on September 27, 2024, the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of 3D printing, in particular to a 3D printer frame and a 3D printer. BACKGROUND

[0004] Most 3D printers use a Z-axis rotating member structure to realize the lifting and lowering of the nozzle assembly. However, when the sliding member connected to the nozzle assembly slides relative to the rotating member, it is easy to be stuck due to the parallelism problem of the rotating member or guide rod, which affects the normal work of the 3D printer. SUMMARY

[0005] The present application provides a 3D printer frame and a 3D printer to solve the problem that the sliding member is easy to be stuck when it slides relative to the rotating member in the known technology.

[0006] In a first aspect, the present application provides a 3D printer frame, comprising a frame body, a sliding seat, and a sliding structure, the sliding structure comprising a rotating member, a sliding member, and a connecting member, the rotating member having a defined rotating axis, the rotating member being configured to rotate around the rotating axis in a first direction; the sliding member being slidably provided on the rotating member, the sliding member being drivingly connected to the rotating member, and the sliding member being configured to slide in a second direction along with the rotation of the rotating member, the second direction being parallel to the direction in which the rotating axis lies; the connecting member being slidably provided on the rotating member, the sliding member being configured to abut against the connecting member to make the connecting member slide in the second direction; wherein at least an active gap in the first direction is provided between the connecting member and the sliding member, the active gap being configured to allow the connecting member and the sliding member to be relatively active; the sliding structure is provided on the frame body, and the sliding seat is connected to the connecting member of the sliding structure.

[0007] According to the 3D printer frame of the present application, the sliding member is driven to slide along the rotating member by rotating the rotating member, and the sliding member abuts against the connecting member during the sliding process to drive the connecting member to slide synchronously, so that the rotating member does not directly drive the connecting member to slide, and the connecting member and the rotating member are prevented from being stuck. In addition, the connecting member and the sliding member are provided with a movable gap therebetween, so that the connecting member and the sliding member can move relatively, and the connecting member and the rotating member are further prevented from being stuck.

[0008] In a second aspect, the present application provides another 3D printer frame, which comprises a frame body, a sliding structure and a leveling assembly. The sliding structure is arranged on the frame body. The sliding structure comprises a rotating member, a sliding member and a connecting member. The rotating member has a defined rotating axis, and is configured to rotate along a first direction about the rotating axis. The sliding member is slidably arranged on the rotating member, is in transmission connection with the rotating member, and is configured to slide along a second direction with the rotation of the rotating member, the second direction being parallel to the direction in which the rotating axis is located. The connecting member is slidably arranged on the rotating member, and the sliding member is configured to abut against the connecting member to drive the connecting member to slide along the second direction. At least a movable gap along the first direction is arranged between the connecting member and the sliding member, and the movable gap is configured to allow the connecting member and the sliding member to move relatively. The leveling assembly is used to support a target member on a base member, and comprises a supporting cylinder and a jackscrew. The supporting cylinder has a first end and a second end in the axial direction. The first end is connected to the target member, and the second end is threadedly connected to the base member and can move axially relative to the base member to adjust the distance between the target member and the base member. The jackscrew is connected to the second end of the supporting cylinder and can move axially relative to the supporting cylinder to a position abutting against the base member.

[0009] In a third aspect, the present application provides a 3D printer comprising the above-mentioned 3D printer frame. BRIEF DESCRIPTION OF DRAWINGS

[0010] FIG. 1 is a structural schematic view of the sliding structure of the 3D printer frame of the present application in an embodiment.

[0011] FIG. 2 is an exploded schematic view of the sliding structure in FIG. 1 in an embodiment.

[0012] FIG. 3 is an exploded schematic view of the sliding structure in FIG. 1 from another perspective in an embodiment.

[0013] FIG. 4 is a sectional view of the sliding structure in FIG. 1 along the direction IV-IV.

[0014] FIG. 5 is a structural schematic view of the 3D printer frame of the present application in an embodiment.

[0015] Fig. 6 is a schematic diagram of the structure of the 3D printer of the present application in an embodiment.

[0016] Fig. 7 is a schematic diagram of the structure of the 3D printer of the present application in another embodiment.

[0017] Fig. 8 is a top view of the partial structure of the 3D printer of the embodiment shown in Fig. 7.

[0018] Fig. 9 is a schematic diagram of the assembled state of the leveling assembly, the target piece and the base piece of the embodiment shown in Fig. 7.

[0019] Fig. 10 is a sectional view of the partial structure of the leveling assembly, the target piece and the base piece of the embodiment shown in Fig. 7.

[0020] Fig. 11 is a perspective view of the leveling assembly of the embodiment shown in Fig. 7.

[0021] Fig. 12 is an exploded view of the leveling assembly of the embodiment shown in Fig. 7.

[0022] Main element symbol explanation: 3D printer 1000, 3D printer frame 100, sliding structure 80, first direction S, second direction Z, rotation axis H, first side P1, second side P2, third side P3, fourth side P4, rotating piece 10, first end 11, second end 12, sliding piece 20, second through hole 201, first limiting part 21, second limiting part 22, first receiving groove 23, second receiving groove 24, connecting piece 30, first sliding part 31, first through hole 310, first extension part 311, second sliding part 32, third through hole 320, second extension part 321, connecting part 33, active gap 40, frame main body 50, sliding seat60 spray head assembly 70 leveling assembly 260 support cylinder 101 first end 1011 second end 1012 center hole 10b second operation hole 10b1 support portion 13 top wire 250 first operation hole 20b locking member 230 elastic member 240 printing platform 200 target member 200a heating plate 203 carrier plate 202 base 300 base member 300a connecting hole 300a1 seat 301 slide 302 DETAILED DESCRIPTION

[0023] The following description will refer to the accompanying drawings, which illustrate examples of the present application. However, the application can be implemented in many different forms and should not be construed as limited to the examples set forth herein. Rather, these examples are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art. Like reference numerals refer to like or similar components throughout the specification.

[0024] The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, to the extent that the terms "including", "includes", "having", "has", "a", "an", "one" or "said" are used in this specification and / or claims, they are intended to be inclusive (meaning that there can be additional items) and / or they are intended to be quantitatively-satisfied by at least the recited members, unless explicitly indicated to the contrary.

[0025] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure and will not be interpreted in an overly literal sense unless expressly so defined herein.

[0026] A detailed description of specific embodiments of the present application is described below with reference to the accompanying drawings.

[0027] As shown in FIGS. 1-3, the present embodiment provides a sliding structure 80, which includes a rotating member 10, a sliding member 20, and a connecting member 30.

[0028] The rotating member 10 has a defined rotating axis H, and the rotating member 10 is configured to rotate about the rotating axis H in a first direction S. The sliding member 20 is slidably disposed on the rotating member 10, and the sliding member 20 is drivingly connected to the rotating member 10. The sliding member 20 is configured to slide in a second direction Z with the rotation of the rotating member 10, and the second direction Z is parallel to the direction of the rotating axis H. The connecting member 30 is slidably disposed on the rotating member 10, and the sliding member 20 is configured to abut against the connecting member 30. During the sliding of the sliding member 20, the sliding member 20 abuts against the connecting member 30, so that the connecting member 30 can slide relative to the rotating member 10 in the second direction Z. At least an active gap 40 in the first direction S is provided between the connecting member 30 and the sliding member 20, and the active gap 40 is configured to allow the relative movement between the connecting member 30 and the sliding member 20.

[0029] It is worth noting that the first direction S shown in FIG. 1 is counterclockwise, which is only to illustrate a rotating state of the rotating member 10. In other embodiments, the rotating member 10 can also rotate in a clockwise direction, and the first direction S can also be opposite to the direction shown in FIG. 1 (i.e., clockwise direction).

[0030] Thus, the sliding structure 80 of the present application drives the slider 20 to slide along the rotating member 10 by rotating the rotating member 10, and the slider 20 abuts against the connecting member 30 to drive the connecting member 30 to slide synchronously in the sliding process, so that the rotating member 10 does not directly drive the connecting member 30 to slide, thereby avoiding the connecting member 30 from being stuck with the rotating member 10. In addition, the clearance 40 is reserved between the connecting member 30 and the slider 20, so that the connecting member 30 and the slider 20 can move relatively, thereby further avoiding the connecting member 30 from being stuck with the rotating member 10.

[0031] Please refer to FIGS. 1-3, in an embodiment, the rotating member 10 is a screw rod, which is in a cylindrical shape. The slider 20 is a screw rod sleeve, which is used in cooperation with the screw rod to form a linear reciprocating mechanism.

[0032] The slider 20 is in a cylindrical shape, and the second through hole 201 is arranged on the slider 20. In the second direction Z, the second through hole 201 extends from the center of the end face of one end of the slider 20 to the end face of the other end of the slider 20, thereby penetrating through the slider 20. The rotating member 10 is arranged in the second through hole 201, and the inner wall of the slider 20 is provided with an internal thread, and the outer periphery of the rotating member 10 is provided with an external thread, which is connected with the internal thread to realize the thread cooperation between the slider 20 and the rotating member 10, so that the slider 20 and the rotating member 10 form a screw rod linear lifting mechanism. The rotating member 10 is rotated to provide a pushing force in the second direction Z between the rotating member 10 and the slider 20 through the thread cooperation between the rotating member 10 and the slider 20, thereby pushing the slider 20 to slide along the rotating member 10 in the second direction Z.

[0033] It can be understood that in other embodiments, the slider 20 can also be in other shapes such as a quadrangular prism, and the specific shape of the slider 20 can be adaptively selected according to actual design requirements.

[0034] Please refer to FIGS. 1-4, in an embodiment, in the second direction Z, the rotating member 10 has the first end 11 and the second end 12 arranged oppositely. The slider 20 is configured to abut against the connecting member 30, so that the connecting member 30 can slide along the second direction Z towards the first end 11 and the second end 12, thereby realizing the upward or downward sliding of the connecting member 30 along the second direction Z under the abutting action of the slider 20 to complete the lifting action of the connecting member 30.

[0035] In the present embodiment, the connecting member 30 includes the first sliding part 31 and the second sliding part 32 connected with each other. In the second direction Z, the first sliding part 31 and the second sliding part 32 are arranged spacedly to form a receiving space between the first sliding part 31 and the second sliding part 32 to accommodate the slider 20.

[0036] Further, the connecting member 30 further comprises a connecting portion 33. The connecting portion 33 is arranged along the second direction Z, one end of the connecting portion 33 is connected to the outer circumferential surface of the first sliding portion 31, and the other end of the connecting portion 33 is connected to the outer circumferential surface of the second sliding portion 32. The connecting portion 33 is integrally formed with the first sliding portion 31 and the second sliding portion 32.

[0037] It can be understood that, in other embodiments, the connecting portion 33 can also be detachably connected to the first sliding portion 31 and the second sliding portion 32 through fasteners such as screws, so as to facilitate replacement of any one of the connecting portion 33, the first sliding portion 31, and the second sliding portion 32.

[0038] In the present embodiment, the first sliding portion 31 and the second sliding portion 32 are both slidably arranged on the rotating member 10. The first sliding portion 31 is provided with a first through hole 310, and the second sliding portion 32 is provided with a third through hole 320. Along the second direction Z, the first through hole 310 penetrates the first sliding portion 31, and the third through hole 320 penetrates the second sliding portion 32. The first through hole 310, the second through hole 201, and the third through hole 320 are coaxially arranged, and the rotating member 10 is sequentially arranged in the first through hole 310, the second through hole 201, and the third through hole 320.

[0039] The inner walls of the first through hole 310 and the third through hole 320 are not provided with internal threads, so that the first sliding portion 31 and the second sliding portion 32 can freely slide along the rotating member 10.

[0040] Along the second direction Z, the first sliding portion 31 and the second sliding portion 32 are arranged on opposite sides of the sliding member 20, one end of the sliding member 20 can abut against the first sliding portion 31, and the other end of the sliding member 20 can abut against the second sliding portion 32.

[0041] In particular, along the second direction Z, the distance between the first sliding portion 31 and the second sliding portion 32 is greater than the length of the sliding member 20, so as to avoid the sliding member 20 and the connecting member 30 being stuck in the second direction Z.

[0042] In the present embodiment, the second direction Z is parallel to the direction of gravity, i.e., the rotating member 10 is vertically placed.

[0043] In this way, when the sliding member 20 slides upward along the second direction Z, the top end of the sliding member 20 abuts against the first sliding portion 31 to push the first sliding portion 31 to slide synchronously, thereby realizing upward movement of the connecting member 30 along the second direction Z. When the sliding member 20 stops sliding, the first sliding portion 31 abuts against the top end of the sliding member 20 under the action of gravity, thereby realizing limiting of the sliding member 20. When the sliding member 20 slides downward along the second direction Z, the bottom end of the sliding member 20 abuts against the second sliding portion 32 to push the second sliding portion 32 to slide synchronously, thereby realizing synchronous downward movement of the connecting member 30 along the second direction Z with the sliding member 20.

[0044] It can be understood that in other embodiments, the second direction Z can also be arranged perpendicular to the direction of gravity, i.e. the rotating member 10 is horizontally placed. At this time, the connecting member 30 will not slide along the second direction Z relative to the rotating member 10 due to gravity, and the connecting member 30 needs to be pushed to slide synchronously by the sliding member 20 abutting against the connecting member 30.

[0045] Please refer to Figs. 1-4, in an embodiment, the sliding member 20 is provided with at least two first limiting portions 21 near one end of the first sliding portion 31. The cross-sectional shape of the first limiting portion 21 is arc-shaped, and the shape of the first limiting portion 21 is matched with the shape of the sliding member 20. Along the second direction Z, the first limiting portion 21 extends from the end surface of the sliding member 20 near the first sliding portion 31 towards the first sliding portion 31. Along the first direction S, the at least two first limiting portions 21 are arranged at intervals, and a first receiving groove 23 is formed between any two adjacent first limiting portions 21. The shape of the first receiving groove 23 is arc-shaped.

[0046] The first sliding portion 31 is provided with a first extension portion 311 near one end of the sliding member 20. The cross-sectional shape of the first extension portion 311 is arc-shaped, and the shape of the first extension portion 311 is matched with the shape of the first sliding portion 31. Along the second direction Z, the first extension portion 311 extends from the end surface of the first sliding portion 31 near the sliding member 20 towards the sliding member 20. The first extension portion 311 is arranged in the first receiving groove 23. Along the first direction S, the groove width of the first receiving groove 23 is greater than the extension length of the first extension portion 311, so that when the first extension portion 311 is arranged in the first receiving groove 23, the opposite sides of the first extension portion 311 both have an activity gap 40 with the adjacent two first limiting portions 21 along the first direction S. The activity gap 40 allows the connecting member 30 to slightly rotate relative to the sliding member 20 along the first direction S, so as to avoid the connecting member 30 and the sliding member 20 from being stuck.

[0047] In addition, when the first extension portion 311 is arranged in the first receiving groove 23, the adjacent two first limiting portions 21 of the first extension portion 311 can limit the first extension portion 311, so as to avoid the rotation angle of the first sliding portion 31 relative to the rotating member 10 from being too large.

[0048] In the present embodiment, the number of the first limiting portions 21 is four, and the four first limiting portions 21 are arranged at equal intervals around the rotating axis H and form four first receiving grooves 23. The number of the first extension portions 311 is two, and the central angles of the two first extension portions 311 are 180°, and the two first extension portions 311 are arranged in the non-adjacent two first receiving grooves 23. In this way, the arrangement of the two first extension portions 311 can improve the stability between the first sliding portion 31 and the sliding member 20.

[0049] It can be understood that in other embodiments, the number of the first limiting portions 21 and the first extension portions 311 can be selected according to actual design requirements.

[0050] Further, along the second direction Z, the extension length of the first limiting portion 21 is greater than or equal to the extension length of the first extension portion 311, so as to ensure that the first limiting portion 21 can extend into the first receiving groove 23 and abut against the bottom end surface of the first sliding portion 31, thereby pushing the first sliding portion 31 to slide by the sliding member 20.

[0051] Along the first direction S, the opposite sides of the first limiting portion 21 are respectively provided with a first side P1 and a second side P2, and along the first direction S, the opposite sides of the first extension portion 311 are respectively provided with the first side P1 and the second side P2, so that when the first extension portion 311 abuts against two adjacent first limiting portions 21, the two can be closely fitted.

[0052] In the embodiment, the first limiting portion 21 is in the shape of a sector, the first side P1 and the second side P2 are arranged at an angle, and the angle between the two is an acute angle.

[0053] Please refer to FIGS. 1 to 4, in an embodiment, the sliding member 20 is provided with at least two second limiting portions 22 near one end of the second sliding portion 32. Along the first direction S, the at least two second limiting portions 22 are arranged at intervals, and any two adjacent second limiting portions 22 form a second receiving groove 24. The second sliding portion 32 is provided with a second extension portion 321 near one end of the sliding member 20, the second extension portion 321 is arranged in the second receiving groove 24, and along the first direction S, the groove width of the second receiving groove 24 is greater than the extension length of the second extension portion 321.

[0054] Along the second direction Z, the extension length of the second limiting portion 22 is greater than or equal to the extension length of the second extension portion 321, so as to ensure that the second limiting portion 22 can extend into the second receiving groove 24 and abut against the top end surface of the second sliding portion 32, thereby pushing the second sliding portion 32 to slide by the sliding member 20. Along the first direction S, the opposite sides of the second limiting portion 22 are respectively provided with a third side P3 and a fourth side P4, and along the first direction S, the opposite sides of the second extension portion 321 are respectively provided with the third side P3 and the fourth side P4.

[0055] In the embodiment, the second limiting portion 22 is in the shape of a sector, the third side P3 and the fourth side P4 are arranged at an angle, and the angle between the two is an acute angle.

[0056] It is worth noting that in the embodiment, the structure and principle of the second limiting portion 22 and the second extension portion 321 are the same as those of the first limiting portion 21 and the first extension portion 311, and will not be described again.

[0057] It can be understood that in other embodiments, only the first limiting portion 21 is arranged on the sliding member 20 and only the first extending portion 311 is arranged on the connecting member 30, and the limiting and the formation of the movable gap 40 between the sliding member 20 and the connecting member 30 are realized only by the cooperation of the first limiting portion 21 and the first extending portion 311.

[0058] It can be understood that in other embodiments, only the second limiting portion 22 is arranged on the sliding member 20 and only the second extending portion 321 is arranged on the connecting member 30, and the limiting and the formation of the movable gap 40 between the sliding member 20 and the connecting member 30 are realized only by the cooperation of the second limiting portion 22 and the second extending portion 321.

[0059] It can be understood that in other embodiments, the shapes or the numbers of the second limiting portion 22 and the second extending portion 321 are different from those of the first limiting portion 21 and the first extending portion 311, and can be selected according to actual design requirements.

[0060] As shown in FIG. 5, and in combination with FIG. 1, the embodiment further provides a 3D printer frame 100, which comprises a frame body 50, a sliding seat 60, and at least one sliding structure 80 described above. The sliding structure 80 is arranged on the frame body 50, and the sliding seat 60 is connected to the connecting member 30 of the sliding structure 80.

[0061] The number of the sliding structures 80 is two, the two sliding structures 80 are arranged at intervals, and the rotating members 10 of the two sliding structures 80 are rotatably installed on the frame body 50. The sliding seat 60 is located between the two sliding structures 80, and the two ends of the sliding seat 60 are respectively connected to the connecting members 33 of the two sliding structures 80.

[0062] The connection between the sliding seat 60 and the connecting member 33 can be realized by fasteners such as screws.

[0063] It can be understood that in other embodiments, the sliding structure 80 can also be only one, and the 3D printer frame 100 further comprises a guide assembly (not shown in the figure), which is arranged in parallel and at intervals with the sliding structure 80. The sliding seat 60 is located between the guide assembly and the sliding structure 80, and one end of the sliding seat 60 is connected to the connecting member 33 of the sliding structure 80, and the other end is slidably connected to the guide assembly.

[0064] As shown in FIG. 6, and in combination with FIG. 1 and FIG. 5, the embodiment further provides a 3D printer 1000, which comprises a nozzle assembly 70 and the 3D printer frame 100 described above, and the nozzle assembly 70 is connected to the sliding seat 60 of the 3D printer frame 100 to drive the nozzle assembly 70 to move along the second direction Z through the sliding seat 60.

[0065] It can be understood that the 3D printer 1000 further comprises other mechanisms required in the 3D printing process.

[0066] Figure 7 is a structural schematic diagram of a 3D printer 1000 in an embodiment of the present application; Figure 8 is a top view of a partial structure of the 3D printer 1000 in the embodiment shown in Figure 7; and Figure 9 is an assembly state schematic diagram of the leveling assembly 260, the target piece 200a and the base piece 300a in the embodiment shown in Figure 7.

[0067] Referring to Figures 7 and 8, an embodiment of the present application provides a 3D printer 1000, which comprises a 3D printer frame 100. The 3D printer frame 100 comprises a frame body 50, a sliding structure 80, a leveling assembly 260, a printing platform 200 and a base 300. The sliding structure 80 is the sliding structure 80 of the foregoing embodiment. The printing platform 200 and the base 300 are connected to the frame body 50.

[0068] Referring to Figure 9, the leveling assembly 260 is used to support the target piece 200a on the base piece 300a. The printing platform 200 comprises the target piece 200a, and the base 300 comprises the base piece 300a. In use, the distance between the printing platform 200 and the base 300 is adjusted by adjusting the leveling assembly 260. For example, the distance between the printing platform 200 and the base 300 can be reduced by adjusting the leveling assembly 260, so that the printing platform 200 is lowered relative to the base 300, or the distance between the printing platform 200 and the base 300 can be increased by adjusting the leveling assembly 260, so that the printing platform 200 is raised relative to the base 300.

[0069] In some embodiments, as shown in Figures 7 and 8, the base 300 comprises a seat body 301 and a sliding seat 302, and the sliding seat 302 is movable relative to the seat body 301. The printing platform 200 is connected to the sliding seat 302, and the printing platform 200 is used to carry and shape the consumables. Optionally, the printing platform 200 comprises a heating plate 203 and a carrying plate 202, the heating plate 203 is connected to the sliding seat 302, and the carrying plate 202 is connected to the side of the heating plate 203 away from the sliding seat 302. In this embodiment, the target piece 200a can be the heating plate 203, and the base piece 300a can be the sliding seat 302. The leveling assembly 260 supports the heating plate 203 on the sliding seat 302 to adjust the distance between the heating plate 203 and the sliding seat 302, so as to change the distance between the carrying plate 202 and the base 300.

[0070] In some embodiments, as shown in Figure 10, the number of leveling assemblies 260 is four, and the four leveling assemblies 260 are arranged in a rectangle, so that the distance between the four corners of the printing platform 200 (see Figure 7) and the base 300 can be adjusted by adjusting the respective leveling assemblies 260. For example, the side surface of the carrying plate 202 away from the seat body 301 can be made parallel to the side surface of the seat body 301 close to the carrying plate 202 by adjusting the respective leveling assemblies 260.

[0071] Figure 10 is a sectional view of part of the levelling assembly 260, the target 200a and the base 300a in the embodiment shown in Figure 7; Figure 11 is a perspective view of the levelling assembly 260 in the embodiment shown in Figure 7; and Figure 12 is an exploded view of the levelling assembly 260 in the embodiment shown in Figure 7.

[0072] Referring to Figures 10 to 12, the levelling assembly 260 in this embodiment comprises a support cylinder 101 and a jackscrew 250. The support cylinder 101 has a first end 1011 connected to the target 200a and a second end 1012 threadedly connected to the base 300a and axially movable relative to the base 300a to adjust the spacing between the target 200a and the base 300a. The jackscrew 250 is connected to the second end 1012 of the support cylinder 101 and axially movable relative to the support cylinder 101 to abut against the base 300a.

[0073] The levelling assembly 260 described above has the first end 1011 of the support cylinder 101 connected to the target 200a and the second end 1012 threadedly connected to the base 300a, so that the support cylinder 101 is fixed relative to the target 200a and the base 300a respectively, thereby supporting the target 200a on the base 300a. The second end 1012 is also rotatable relative to the base 300a to move the support cylinder 101 axially relative to the base 300a, thereby moving the target 200a relative to the base 300a and changing the spacing between the target 200a and the base 300a. Since the jackscrew 250 is connected to the second end 1012 of the support cylinder 101 and axially abuts against the base 300a, the support cylinder 101 is prevented from moving towards the base 300a after adjustment by the jackscrew 250, thereby improving the reliability of the support of the target 200a by the support cylinder 101 and more reliably fixing the target 200a relative to the base 300a.

[0074] Alternatively, the jackscrew 250 is threadedly connected to the second end 1012 of the support cylinder 101, so that in use, the jackscrew 250 is rotatable relative to the second end 1012 to project one end of the jackscrew 250 beyond the second end 1012 and axially abut the base 300a with the one end of the jackscrew 250 projecting beyond the second end 1012. In other embodiments, the jackscrew 250 and the second end 1012 of the support cylinder 101 can be connected by a ball and socket joint or other connection means.

[0075] In use, the axis of the support cylinder 101 can be vertical, so that the leveling assembly 260 can adjust the height of the target object 200a relative to the base object 300a. Specifically, when it is required to raise a corner of the target object 200a, the support cylinder 101 corresponding to the corner can be operated to rotate the second end 1012 relative to the base object 300a, so that the first end 1011 is raised along the axis relative to the base object 300a, thereby lifting the target object 200a relative to the base object 300a. Then, the jackscrew 250 is moved along the axis towards the side close to the base object 300a relative to the support cylinder 101, for example, when the jackscrew 250 is threadedly connected to the second end 1012, the jackscrew 250 is rotated relative to the second end 1012 until the jackscrew 250 abuts against the base object 300a along the axis, so as to avoid the support cylinder 101 from sliding down relative to the base object 300a. When it is required to lower a corner of the target object 200a, the jackscrew 250 is first moved along the axis away from the base object 300a relative to the support cylinder 101, so that the end of the jackscrew 250 away from the support cylinder 101 is spaced apart from the base object 300a along the axis, and then the second end 1012 is rotated relative to the base object 300a, so that the first end 1011 is lowered along the axis relative to the base object 300a, thereby lowering the target object 200a relative to the base object 300a. Then, the jackscrew 250 is moved along the axis towards the side close to the base object 300a relative to the support cylinder 101, so that the jackscrew 250 abuts against the base object 300a along the axis.

[0076] In some embodiments, as shown in FIG. 10, the leveling assembly 260 further comprises a locking member 230, such as a nut, which is threadedly connected to the first end 1011. The outer periphery of the support cylinder 101 is provided with a support portion 13, and the target object 200a is supported on and locked between the support portion 13 and the locking member 230. In this way, the first end 1011 and the target object 200a can be locked or unlocked by rotating the locking member 230 relative to the first end 1011. When adjusting the leveling assembly 260, the support portion 13 can be rotated relative to the target object 200a by first loosening the locking member 230, so as to facilitate the operation of the support cylinder 101 to rotate the second end 1012 relative to the base object 300a, thereby facilitating the adjustment. After the adjustment is completed, the locking member 230 is tightened, so that the target object 200a is pressed between the locking member 230 and the support portion 13, and the first end 1011 is reliably fixed relative to the target object 200a.

[0077] Alternatively, as shown in FIG. 10, the support portion 13 is located between the target object 200a and the base object 300a, and can be supported along the axis on the side of the target object 200a close to the base object 300a. The first end 1011 partially protrudes from the side of the target object 200a away from the base object 300a, and the locking member 230 is arranged on the side of the target object 200a away from the base object 300a, so as to facilitate the operation of the locking member 230.

[0078] In some embodiments, as shown in FIG. 10, the leveling assembly 260 further comprises a resilient member 240, which is elastically abutted between the support 13 and the base member 300a to apply an elastic force to the support 13 in the axial direction away from the base member 300a, so as to axially abut the support cylinder 101, thereby increasing the friction between the second end portion 1012 and the base member 300a in the threaded connection, so that the second end portion 1012 is not easy to loosen relative to the base member 300a. Therefore, when the locking member 230 is operated to rotate relative to the first end portion 1011, it can be ensured that the support cylinder 101 will not rotate relative to the base member 300a, thereby facilitating operation.

[0079] In some embodiments, as shown in FIGS. 10-11, the resilient member 240 is a coil spring, which is sleeved on the support cylinder 101 to be limited by the support cylinder 101 and to provide a guiding effect for the axial expansion and contraction of the resilient member 240.

[0080] In some embodiments, as shown in FIG. 10, the support cylinder 101 is provided with a through central hole 10b in the axial direction, and the jackscrew 250 is threadedly connected to the central hole 10b. In this way, the jackscrew 250 can be operated by being inserted into the central hole 10b, so that the operation is facilitated.

[0081] In some embodiments, as shown in FIG. 10, the end face of the end of the jackscrew 250 close to the support cylinder 101 is provided with a first operation hole 20b, which communicates with the central hole 10b. In this way, during use, a tool (such as a screwdriver) can be inserted into the first operation hole 20b to rotate the jackscrew 250 by the tool, so that the jackscrew 250 rotates relative to the second end portion 1012, thereby moving the jackscrew 250 in the axial direction relative to the second end portion 1012. In this embodiment, the first operation hole 20b is a hexagonal hole.

[0082] In some embodiments, as shown in FIG. 10, the end of the support cylinder 101 away from the jackscrew 250 is provided with a second operation hole 10b1, which communicates with the central hole 10b and is used for operation to adjust the relative position of the support cylinder 101 and the base member 300a. During use, a tool (such as a screwdriver) can be inserted into the second operation hole 10b1 to rotate the first end portion 1011 by the tool, so that the support cylinder 101 rotates relative to the base member 300a, thereby moving the support cylinder 101 in the axial direction relative to the base member 300a. In this embodiment, the second operation hole 10b1 is a hexagonal hole.

[0083] In some embodiments, as shown in FIG. 10, the base 300a is provided with a connecting hole 300a1, which is a blind hole, and the outer peripheral surface of the second end portion 1012 of the support cylinder 101 is threadedly connected in the connecting hole 300a1, and the jackscrew 250 can be threadedly adjusted relative to the support cylinder 101 to abut against the hole bottom surface of the connecting hole 300a1, so as to abut the jackscrew 250 against the base 300a along the axial direction.

[0084] In the foregoing, the specific embodiments of the present application are described with reference to the accompanying drawings. However, those skilled in the art can understand that various changes and replacements can be made to the specific embodiments of the present application without departing from the scope of the present application. These changes and replacements are all within the scope defined by the present application.

Claims

1. A 3D printer frame, characterized in that, The utility model relates to a rack body, a sliding seat, a sliding structure, the sliding structure includes a rotating piece, a sliding piece, a connecting piece, the rotating piece has defined rotating axis, the rotating piece is configured to rotate around the rotating axis along the first direction, the sliding piece is slidably arranged on the rotating piece, the sliding piece is transmission connection on the rotating piece, and the sliding piece is configured to slide along the second direction with the rotation of the rotating piece, the second direction is parallel with the direction where the rotating axis is located, the connecting piece is slidably arranged on the rotating piece, the sliding piece is configured to resist the connecting piece to make the connecting piece slide along the second direction, wherein at least the activity clearance along the first direction is arranged between the connecting piece and the sliding piece, the activity clearance is configured to allow the relative activity of the connecting piece and the sliding piece, the sliding structure is arranged on the rack body, and the sliding seat is connected with the connecting piece of the sliding structure. Along the second direction, the rotating piece has oppositely arranged first end and second end, the sliding piece is configured to resist the connecting piece to make the connecting piece slide along the second direction towards the first end and the second end. The connecting piece includes the first sliding part and the second sliding part connected with each other, the first sliding part and the second sliding part are slidably arranged on the rotating piece, along the second direction, the first sliding part and the second sliding part are arranged on the opposite sides of the sliding piece, one end of the sliding piece can resist the first sliding part, and the other end of the sliding piece can resist the second sliding part. Along the second direction, the distance between the first sliding part and the second sliding part is greater than the length of the sliding piece. The sliding piece is close to the first sliding part at least two first limiting portions of one end, along the first direction, at least two first limiting portions are arranged at intervals, and first receiving grooves are formed between any adjacent two first limiting portions; 2. The 3D printer frame of claim 1, wherein, The first sliding part is close to the sliding piece and is provided with a first extension portion at one end, the first extension portion is arranged in the first receiving groove, and along the first direction, the groove width of the first receiving groove is greater than the extension length of the first extension portion.

3. The 3D printer frame of claim 2, wherein, Along the second direction, the extension length of the first limiting portion is greater than or equal to the extension length of the first extension portion.

4. The 3D printer frame of claim 3, wherein, Along the first direction, the side surfaces of the opposite sides of the first limiting portion are respectively arranged as the first side surface and the second side surface, and along the first direction, the opposite side surfaces of the first extension portion are arranged in parallel with the first side surface and the second side surface.

5. The 3D printer frame of claim 3, wherein, The sliding piece is close to the second sliding part and is provided with at least two second limiting portions of one end, along the first direction, at least two second limiting portions are arranged at intervals, and second receiving grooves are formed between any adjacent two second limiting portions; The second sliding part is close to the sliding piece and is provided with a second extension portion at one end, the second extension portion is arranged in the second receiving groove, and along the first direction, the groove width of the second receiving groove is greater than the extension length of the second extension portion.

6. The 3D printer frame of claim 5, wherein, ​ 7. The 3D printer frame of claim 5, wherein, ​ 8. The 3D printer frame of claim 3, wherein, ​ ​ 9. The 3D printer frame of claim 8, wherein, Along the second direction, the second limiting portion has an extension length greater than or equal to that of the second extension portion.

10. The 3D printer frame of claim 8, wherein, Along the first direction, opposite sides of the second limiting portion are respectively provided with third and fourth side faces, and along the first direction, opposite sides of the second extension portion are respectively provided parallel to the third and fourth side faces.

11. A 3D printer frame, characterized in that, The 3D printing frame comprises: a frame body; a sliding structure provided on the frame body, the sliding structure comprising a rotating member, a sliding member, and a connecting member, the rotating member having a defined rotating axis, the rotating member being configured to rotate about the rotating axis along a first direction; the sliding member being slidably provided on the rotating member, the sliding member being in transmission connection with the rotating member, and the sliding member being configured to slide along a second direction with the rotation of the rotating member, the second direction being parallel to the direction in which the rotating axis is located; the connecting member being slidably provided on the rotating member, the sliding member being configured to abut against the connecting member to enable the connecting member to slide along the second direction; wherein at least an active gap along the first direction is provided between the connecting member and the sliding member, the active gap being configured to allow the connecting member and the sliding member to be relatively active; a leveling assembly for supporting a target member on a base member, the leveling assembly comprising a support cylinder and a jackscrew, the support cylinder having a first end and a second end along an axial direction, the first end being connected to the target member, the second end being threadedly connected to the base member and being capable of moving axially relative to the base member to adjust the distance between the target member and the base member; the jackscrew being connected to the second end of the support cylinder and being capable of moving axially relative to the support cylinder to a position abutting against the base member.

12. The 3D printer frame of claim 11, wherein, The leveling assembly further comprises a locking member threadedly connected to the first end; an outer periphery of the support cylinder is provided with a support portion; the target member is supported on the support portion and locked between the support portion and the locking member.

13. The 3D printer frame of claim 12, wherein, The leveling assembly further comprises an elastic member elastically abutting between the support portion and the base member.

14. The 3D printer frame of claim 13, wherein, The elastic member is a coil spring, and the elastic member is sleeved on the outside of the support cylinder.

15. The 3D printer frame of claim 11, wherein, The support cylinder is provided with a through central hole along the axial direction, and the jackscrew is threadedly connected to the central hole.

16. The 3D printer frame of claim 15, wherein, An end face of one end of the jackscrew close to the support cylinder is provided with a first operation hole, and the first operation hole is in communication with the central hole.

17. The 3D printer frame of claim 15, wherein, The other end of the support cylinder away from the jackscrew is provided with a second operation hole in communication with the central hole for operating to threadedly adjust the relative position of the support cylinder and the base member.

18. The 3D printer frame of claim 11, wherein, The base member is provided with a connecting hole, the connecting hole is a blind hole; an outer peripheral surface of the second end is threadedly connected in the connecting hole; the jackscrew can be threadedly adjusted relative to the support cylinder to abut against the bottom surface of the connecting hole.

19. The 3D printer frame of claim 11, wherein, The 3D printing frame further comprises a printing platform and a base, the printing platform comprises the target member, the target member is a heating plate, and the base comprises the base member.

20. A 3D printer characterized by, The 3D printing frame comprises any one of claims 1 to 19.

Images