Driving unit and 3D printing equipment applying same

Abstract

The embodiment of the utility model provides a driving unit and 3D printing equipment applying the same. The driving unit is used for driving a 3D printing construction module and comprises a connecting assembly, a driving assembly and a fixing assembly. The connecting assembly is used for connecting and driving the construction module to move; the driving assembly is used for driving the connecting assembly to move in the first direction and comprises at least two first guiding pieces arranged at intervals. The fixing assembly is used for fixing the driving unit, the fixing assembly is clamped between the at least two first guiding pieces in the second direction, the first direction intersects with the second direction, and the connecting assembly is in sliding fit with the fixing assembly. The 3D printing equipment comprises a construction module and the driving unit, wherein the driving unit is used for driving the construction module.

Description

Technical Field

[0001] The present application relates to the field of 3D printing, and in particular to a drive unit and a 3D printing device using the same. Background Art

[0002] 3D printing technology is a rapid prototyping technology that uses digital model files as a basis, and uses special wax materials, powdered metals or plastics and other adhesive materials to print layers of materials to create three-dimensional objects. The printing material melts and is extruded at the nozzle, and finally takes shape. The installation accuracy of the drive unit directly affects its printing accuracy. In the prior art, the drive unit and the nozzle drive unit are usually installed separately based on the base as the assembly reference, which makes the relative accuracy of the drive unit and the nozzle drive unit vary greatly, directly affecting the relative position accuracy of the nozzle assembly and the building module, and directly affecting the printing accuracy of 3D printing. Moreover, the driving accuracy of the drive unit to the building module also directly affects the printing accuracy of 3D printing. How to solve the above problems is what those skilled in the art need to consider. Utility Model Content

[0003] In order to solve the problems in the prior art, the embodiments of the present application provide a driving unit with higher installation accuracy and higher printing accuracy, and a 3D printing device using the same.

[0004] An embodiment of the present application provides a driving unit for driving a building module for 3D printing, the driving unit comprising:

[0005] A connecting component, which is used to connect and drive the building module to move;

[0006] a driving assembly for driving the connecting assembly to move in a first direction, the driving assembly comprising at least two first guide members spaced apart from each other;

[0007] A fixing assembly is used to fix the driving unit. The fixing assembly is clamped between at least two of the first guide members along the second direction. The first direction intersects with the second direction. The connecting assembly is slidably matched with the fixing assembly.

[0008] In one embodiment, the fixing assembly includes:

[0009] a fixing portion, configured to fix the driving unit;

[0010] The guide portion is connected to the fixing portion and is used to enable the connecting component to slide and cooperate with the fixing component.

[0011] In one embodiment, the guide portion includes:

[0012] a connecting section, configured to be connected to the fixing portion;

[0013] The movable section is rotatably connected to the connecting section and is configured to be rotatable relative to the fixed portion.

[0014] In one embodiment, the guide portion includes two movable segments, which are respectively disposed on both sides of the connecting segment along the first direction.

[0015] In one embodiment, the fixing assembly includes:

[0016] The two guide portions are respectively provided on both sides of the fixing portion along the second direction;

[0017] Each of the guide portions is configured to cooperate with at least one of the first guide members disposed on the same side along the second direction.

[0018] In one embodiment, the fixing portion and the guide portion are arranged to form a hollow area, and the driving assembly includes:

[0019] a transmission belt fixedly connected to the connecting assembly;

[0020] a driving portion, which is in driving connection with the transmission belt, and the driving portion is arranged corresponding to the hollow area;

[0021] A mounting frame, which is movably connected to the transmission belt, and the mounting frame is arranged corresponding to the hollow area;

[0022] The driving portion and the mounting bracket are arranged on two opposite sides of the fixing portion along the first direction, and the transmission belt is arranged across the fixing portion along the first direction.

[0023] In one embodiment, the fixing assembly further includes:

[0024] The disassembly portion is detachably connected to the fixing portion and / or the guide portion and is used to support the guide portion.

[0025] In one embodiment, the driving assembly further includes:

[0026] a second guide member, slidably arranged with the first guide member;

[0027] A mounting groove is formed on a side of the guide portion away from the fixing portion, and the second guide member is arranged in the mounting groove.

[0028] In one embodiment, the connection assembly includes:

[0029] a profile connecting portion, which is used to connect to the driving assembly, the width of the profile connecting portion along the second direction being greater than the width of the fixing assembly along the second direction, and the first guide member being provided on a side of the profile connecting portion close to the fixing assembly;

[0030] The platform connection portion is used to connect with the building module, and the platform connection portion is arranged on the side of the profile connection portion away from the fixing assembly.

[0031] An embodiment of the present application further provides a 3D printing device, which includes a building module and a driving unit as described in any one of the aforementioned embodiments, wherein the driving unit is used to drive the building module.

[0032] In one embodiment, the building module includes a carrier and a printing platform plate, the carrier is connected to the driving unit, the printing platform plate is connected to the carrier, and the printing platform plate is arranged on a side of the carrier away from the driving unit.

[0033] It can be understood that the driving unit of the present application is fixed by a fixing assembly to achieve the positioning of the driving unit during the installation process, improve its installation accuracy, and further improve its printing accuracy. The driving unit of the present application also includes a connecting assembly movably connected to the fixing assembly, and a driving assembly transmission-connected to the connecting assembly, the driving assembly is used to drive the connecting assembly to move in at least one direction, to achieve stable linear movement of the construction module, and improve its printing accuracy. In addition, the driving assembly includes at least two first guide members arranged at intervals, and the fixing assembly is clamped between the at least two first guide members along the second direction, and the guiding and supporting of the driving assembly are achieved through the guide portion, so as to achieve sliding cooperation between the connecting assembly and the fixing assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A three-dimensional schematic diagram of the cooperation between the driving unit and the building module provided in one embodiment of the present application.

[0035] Figure 2 A three-dimensional schematic diagram of a driving unit provided in one embodiment of the present application.

[0036] Figure 3 A schematic diagram of a connection assembly of a drive unit provided in one embodiment of the present application.

[0037] Figure 4 A schematic diagram of a fixing assembly of a drive unit provided in one embodiment of the present application.

[0038] Figure 5 A schematic structural diagram of a drive unit provided in one embodiment of the present application.

[0039] Figure 6 A schematic structural diagram of a drive unit provided in another embodiment of the present application.

[0040] Figure 7 This is a schematic structural diagram of a drive unit provided in yet another embodiment of the present application.

[0041] Figure 8A three-dimensional schematic diagram of the 3D printing device provided in an embodiment of the present application.

[0042] Description of main component symbols

[0043] Drive unit 10

[0044] Fixing component 11

[0045] Hollow area 110

[0046] Fixing portion 111

[0047] Mounting hole 1110

[0048] Guide portion 112

[0049] Mounting slot 1120

[0050] Connecting section 1121

[0051] Activity segment 1122

[0052] Rotating connector 1123

[0053] Disassembly unit 113

[0054] Support pole 1131

[0055] Shaft 1132

[0056] Locking piece 1133

[0057] Connecting components 12

[0058] Profile connection portion 121

[0059] Platform connection portion 122

[0060] Drive assembly 13

[0061] First guide member 131

[0062] Second guide member 132

[0063] Driving unit 133

[0064] Driving wheel 1331

[0065] Transmission belt 134

[0066] Mounting frame 135

[0067] Driven wheel 1351

[0068] Fixed frame 136

[0069] 3D printing equipment 1

[0070] Drive unit 15

[0071] Sprinkler unit 16

[0072] Base unit 17

[0073] Building Module 18

[0074] Carrier 181

[0075] Print platform plate 182

[0076] Gantry 19

[0077] First direction Y

[0078] Second direction X

[0079] The third direction Z

[0080] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0081] The following description will refer to the accompanying drawings to more fully describe the contents of this 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 interpreted as being limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make this application thorough and complete and to fully convey the scope of this application to those skilled in the art. Similar reference numerals represent identical or similar components. The terms used herein are only used for the purpose of describing specific exemplary embodiments and are not intended to limit this application. As used herein, unless the context clearly indicates otherwise, the singular forms "one", "an" and "the" are intended to also include plural forms. In addition, when used herein, "includes" and / or "comprising" and / or "having", integers, steps, operations, components and / or components, but do not exclude the presence or addition of one or more other features, regions, integers, steps, operations, components and / or their groups. 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. Furthermore, unless explicitly defined herein, terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the relevant art and the content of this application, and will not be interpreted as an idealized or overly formal meaning.

[0082] Generally, 3D printing technology is a rapid prototyping technology that uses digital model files as a basis, and uses special wax materials, powdered metals or plastics and other adhesive materials to print layers of materials to manufacture three-dimensional objects. The printing material melts and is extruded at the nozzle, and finally forms the object. The installation accuracy of the drive unit directly affects its printing accuracy. In the prior art, the drive unit and the nozzle drive unit are usually installed separately based on the base as the assembly reference, which makes the relative accuracy of the drive unit and the nozzle drive unit vary greatly, directly affecting the relative position accuracy of the nozzle assembly and the building module, and directly affecting the printing accuracy of 3D printing. Moreover, the driving accuracy of the drive unit to the building module also directly affects the printing accuracy of 3D printing. How to solve the above problems is what those skilled in the art need to consider.

[0083] Correspondingly, an embodiment of the present application provides a drive unit and a 3D printing device using the same. The drive unit is used to drive the building module of 3D printing, and the drive unit includes a connecting component, a driving component, and a fixing component; the connecting component is used to connect and drive the building module to move; the driving component is used to drive the connecting component to move along a first direction, and the driving component includes at least two first guide members arranged at intervals; the fixing component is used to fix the driving unit, and the fixing component is clamped between at least two first guide members along a second direction, the first direction intersects with the second direction, and the connecting component and the fixing component slide together. The 3D printing device includes a building module and the drive unit as described above, and the drive unit is used to drive the building module.

[0084] Furthermore, the driving unit of the present application is fixed by a fixing assembly, so as to realize the positioning of the driving unit during the installation process, improve its installation accuracy, and further improve its printing accuracy. The driving unit of the present application also includes a connecting assembly movably connected to the fixing assembly, and a driving assembly transmission-connected to the connecting assembly, and the driving assembly is used to drive the connecting assembly to move in at least one direction, so as to realize the stable linear movement of the construction module and improve its printing accuracy. Moreover, the driving assembly includes at least two first guide members arranged at intervals, and the fixing assembly is clamped between the at least two first guide members along the second direction, and the guiding and supporting of the driving assembly are realized by the guide portion, so as to realize the sliding cooperation between the connecting assembly and the fixing assembly.

[0085] The following describes exemplary embodiments with reference to the accompanying drawings. It should be noted that the components depicted in the accompanying drawings are not necessarily shown to scale; and the same or similar components will be given the same or similar reference numerals or similar technical terms.

[0086] The specific implementation methods of the present application are further described in detail below with reference to the accompanying drawings.

[0087] like Figures 1 to 4As shown, the drive unit 10 is used to drive the 3D printed building module 18, and the drive unit 10 includes a fixing component 11, a connecting component 12 and a driving component 13; the connecting component 12 is used to connect and drive the building module 18 to move; the driving component 13 is used to drive the connecting component 12 to move along the first direction Y, and the driving component 13 includes at least two first guide members 131 arranged at intervals; the fixing component 11 is used to fix the drive unit 10, and the fixing component 11 is clamped between the at least two first guide members 131 along the second direction X. The first direction Y intersects with the second direction X, and the connecting component 12 and the fixing component 11 are slidably engaged.

[0088] In one embodiment, the fixing assembly 11 can be the main positioning structure of the drive unit 10. The drive unit 10 is installed and fixed by installing the fixing assembly 11 on an external structure (such as the gantry 19 of the 3D printing device 1). The drive assembly 13 and the fixing assembly 11 have a relatively fixed positional relationship and / or connection relationship. The installation and fixation of the fixing assembly 11 can make the position of the drive assembly 13 generally stable. The connecting assembly 12 is used to connect the drive assembly 13 and the building module 18. The movement requirements of the building module 18 are achieved through the drive assembly 13, and the positioning requirements of the building module 18 are achieved through the fixing assembly 11.

[0089] It can be understood that the drive unit 10 of the present application is fixed by the fixing component 11, so as to realize the positioning of the drive unit 10 during the installation process and improve its installation accuracy and printing accuracy. The drive unit 10 of the present application also includes a connecting component 12 that is movably connected to the fixing component 11, and a driving component 13 that is transmission-connected to the connecting component 12; the driving component 13 is used to drive the connecting component 12 to move in at least one direction, so that the building module 18 can perform stable linear motion and improve its printing accuracy. In addition, the driving component 13 includes at least two first guide members 131 arranged at intervals, and the fixing component 11 is clamped between the at least two first guide members 131 along the second direction X. The guiding and supporting of the driving component 13 is realized by the guide portion 112, so as to realize the sliding cooperation between the connecting component 12 and the fixing component 11.

[0090] In one embodiment, a plurality of mounting holes 1110 are provided on the fixing assembly 11 , and the mounting holes 1110 can be used to accommodate fixing bolts to achieve positioning and installation of the fixing assembly 11 and an external structure (such as the gantry 19 of the 3D printing device 1 ).

[0091] For ease of understanding, the embodiments of the present application introduce a first direction Y, a second direction X, and a third direction Z for description. The first direction Y, the second direction X, and the third direction Z are three non-parallel directions in a spatial coordinate system. In subsequent embodiments, the first direction Y, the second direction X, and the third direction Z are described as three mutually perpendicular reference directions in a three-dimensional Cartesian coordinate system. The directions shown in the embodiments of the present application are used to help understand the relative positional relationship of the various components, but do not limit their specific directions.

[0092] In one embodiment, the connecting assembly 12 includes a profile connecting portion 121 and a platform connecting portion 122. The profile connecting portion 121 is used to connect to the driving assembly 13. The width of the profile connecting portion 121 along the second direction X is greater than the width of the fixing assembly 11 along the second direction X. The first guide member 131 is located on the side of the profile connecting portion 121 close to the fixing assembly 11. The platform connecting portion 122 is used to connect to the building module 18 and is located on the side of the profile connecting portion 121 facing away from the fixing assembly 11.

[0093] In one embodiment, the profile connection portion 121 extends generally along a plane defined by the first direction Y and the second direction X. The platform connection portion 122 protrudes generally along the third direction Z, facing away from the fixing portion 111 (or, more understandably, toward the side where the forming platform is located). The first guide member 131 is connected to the profile connection portion 121 and is disposed along the third direction Z on a side of the profile connection portion 121 proximal to the fixing assembly 11. There may be multiple first guide members 131, each of which is spaced apart along the first direction Y and / or the second direction X.

[0094] It can be understood that at least one first guide member 131 is provided on each side of the driving component 13 spaced apart along the second direction X, and the profile connecting portion 121 is clamped on the fixing component 11 by at least two first guide members 131 spaced apart along the second direction X; that is, a guide structure for the fixing portion 111 and the connecting component 12 is provided in the width direction (second direction X), so as to avoid interference with the travel of the connecting component 12 along the first direction Y, and / or avoid interference with the connection and installation of the connecting component 12 and the building module 18 along the third direction Z, thereby realizing a reasonable layout of various functional structures in a relatively limited space.

[0095] In one embodiment, the drive assembly 13 further includes a second guide member 132. The second guide member 132 is connected to the fixing assembly 11 and extends along the first direction Y. The first guide member 131 and the second guide member 132 are slidably engaged. The second guide member 132 and the first guide member 131 can engage with each other along the second direction X, allowing the second guide member 132 and the first guide member 131 to abut against each other. Simultaneously, the second guide member 132 and the first guide member 131 can slide along the first direction Y, thereby guiding the relative sliding of the connecting assembly 12 and the fixing portion 111.

[0096] In one embodiment, the second guide member 132 and the first guide member 131 can cooperate in various ways. For example, the first guide member 131 can be a rotatable pulley having a groove arranged along the second direction X, and the second guide member 132 can be an optical axis arranged to protrude along the second direction X; alternatively, the second guide member 132 can be a structure having a recessed structure along the second direction X, and the first guide member 131 can be a rotatable pulley having an outer peripheral edge arranged to protrude along the second direction X; alternatively, both the second guide member 132 and the first guide member 131 can be structures having recessed structures arranged along the second direction X and can engage with each other.

[0097] In this embodiment, a recessed assembly slot 1120 is defined on each side edge of the fixing assembly 11, spaced apart along the second direction X. The first guide member 131 is a pulley with an indentation, and the second guide member 132 is an optical axis. An optical axis is positioned within each assembly slot 1120, and the exposed portion of the optical axis, uncovered by the assembly slot 1120, is in sliding contact with the pulley. It will be appreciated that the coordinated guiding of the first and second guide members 131, 132 can enhance the stability of the drive unit 10 in driving the build module 18 in the first direction Y, thereby improving the accuracy of 3D printing.

[0098] In one embodiment, the fixing assembly 11 includes a connecting fixing portion 111 and a guide portion 112. The fixing portion 111 is used to fix the drive unit 10, and the guide portion 112 is used to allow the connecting assembly 12 to slide with the fixing assembly 11. The length of the guide portion 112 along the first direction Y is greater than the length of the fixing portion 111 along the first direction Y.

[0099] In this embodiment, the fixing assembly 11 is generally a profile, or more accurately, a plate. The length of the fixing assembly 11 corresponds to the first direction Y, the width of the fixing assembly 11 corresponds to the second direction X, and the thickness of the fixing assembly 11 corresponds to the third direction Z. Specifically, the guide portion 112 extends a greater length relative to the length of the fixing assembly 11 and has a greater travel range. The guide portion 112 may be provided with an assembly slot 1120 extending along the first direction Y. The assembly slot 1120 is configured to accommodate the second guide member 132.

[0100] As will be understood, the guide portion 112 provides support for guiding the first guide member 131 and the second guide member 132, and the fixing portion 111 is used to secure the fixing assembly 11 to the external structure while also providing support for the guide portion 112. By making the length of the guide portion 112 along the first direction Y greater than the length of the fixing portion 111 along the first direction Y, the fixing portion 111, which provides support for the guide portion 112, can be retained while reducing the volume of the fixing portion 111, thereby achieving weight and cost reductions.

[0101] In one embodiment, the fixing assembly 11 includes two guide portions 112 , which are respectively arranged on both sides of the fixing portion 111 along the second direction X; each guide portion 112 is used to cooperate with at least one first guide member 131 arranged on the same side along the second direction X.

[0102] As will be appreciated, the fixing assembly 11 is generally shaped like an "I" (I-shaped) plate, with two guide portions 112 located on either side of the fixing portions 111, respectively, and cooperating with first guide members 131 also located on either side to provide smoother guidance. In other embodiments, the number of guide portions 112 may be only one, with one guide portion 112 located on either side of the fixing portion 111; or, the fixing assembly 111 may include multiple guide portions 112, with the multiple guide portions 112 located on either side of the fixing portion 111, and the guide portions 112 located on the same side may be stacked or connected along the first direction Y.

[0103] In one embodiment, the fixing portion 111 and the guide portion 112 enclose a hollow area 110. The hollow area 110 can be used to reduce the weight of the fixing assembly 11 and also expose areas otherwise obscured by the fixing assembly 11, facilitating subsequent maintenance and inspection. It is understood that the hollow area 110 can be located on opposite sides of the fixing portion 111 along the first direction Y, and the portion of the guide portion 112 that protrudes from the fixing portion 111 along the first direction Y is located on the side of the hollow area 110 along the second direction X.

[0104] In one embodiment, the drive assembly 13 includes a drive unit 133, a transmission belt 134, a mounting bracket 135, and a fixing bracket 136. The mounting bracket 135 and the fixing bracket 136 are respectively connected to the fixing assembly 11. The drive unit 133 is connected to the fixing assembly 11 via the fixing bracket 136. The drive unit 133 is used to drive the transmission belt 134 to move. The transmission belt 134 is fixedly connected to the connecting assembly 12.

[0105] In this embodiment, the transmission belt 134 is fixedly connected to the profile connecting portion 121, the driving portion 133 and the mounting frame 135 are arranged on opposite sides of the fixed portion 111 along the first direction Y, and the two ends of the transmission belt 134 are respectively connected to the driving portion 133 and the mounting frame 135, and the transmission belt 134 is arranged across the fixed portion 111 along the first direction Y.

[0106] As will be understood, the drive unit 133 is a power source for driving, such as a motor capable of outputting rotational torque. One end of the transmission belt 134 is in transmission connection with the driving pulley 1331 of the drive unit 133, and the other end of the transmission belt 134 is rotationally connected to the driven pulley 1351 on the mounting bracket 135 to tension the transmission belt 134 and convert the output of the drive unit 133 into linear motion of the connecting assembly 12. The transmission belt 134 can also be replaced by a transmission screw arranged along the first direction Y. The transmission belt 134 extends along the first direction Y, corresponding to the long side of the fixed assembly 11, thereby obtaining a relatively large travel within a relatively limited space.

[0107] Further integration Figure 5 As shown, in one embodiment, the guide portion 112 includes a connecting section 1121 and a movable section 1122. The connecting section 1121 is used to connect to the fixed portion 111; the movable section 1122 is rotatably connected to the connecting section 1121 and is configured to be rotatable relative to the fixed portion 111.

[0108] In one embodiment, both the connecting section 1121 and the movable section 1122 may be in the shape of straight segments, and the assembly slot 1120 is provided in both the connecting section 1121 and the movable section 1122. The movable section 1122 is rotatable relative to the connecting section 1121, allowing the movable section 1122 and the connecting section 1121 to be connected to form a guide portion 112 extending along the first direction Y. The movable section 1122 and the connecting section 1121 can also be flexed so as to no longer abut against the first guide member 131 and / or the second guide member 132, thereby providing operating space for the assembly and disassembly of the first guide member 131 and / or the second guide member 132.

[0109] In this embodiment, the connecting section 1121 and the movable section 1122 are rotatably connected at their connection point via a rotating connector 1123. The connecting section 1121 and the movable section 1122 can both be thinned at the corresponding rotating connector 1123. The thinned regions of the connecting section 1121 and the movable section 1122 can be stacked along the third direction Z corresponding to the rotating connector 1123. The rotating connector 1123 can be sandwiched between the thinned regions of the connecting section 1121 and the movable section 1122 along the third direction Z and connected to the two thinned regions, respectively. In this way, the connecting section 1121 and the movable section 1122 can be rotatably connected. It is understood that the region of the fixed portion 111 corresponding to the rotation path of the movable section 1122 during its rotation can be thinned or hollowed out to avoid interference with the rotation process of the movable section 1122.

[0110] It is understandable that in order to ensure the stability of the guiding fit between the first guide portion 112 and the second guide portion 112, the first guide portion 112 and the second guide portion 112 are usually constructed to be in a mutually clamped fitting relationship along the second direction X; this makes it difficult to disassemble the first guide portion 112 and the second guide portion 112 after assembly. It is usually necessary to first remove the first guide member 131 from the connecting assembly 12, and then separate the connecting assembly 12 from the fixed assembly 11. However, the connection position between the first guide portion 112 and the connecting assembly 12 is usually blocked by the base, which makes the overall disassembly process very difficult. However, in the drive unit 10 of the present application, the connecting section 1121 is constructed to be connected to the fixed portion 111 to ensure that the guide portion 112 and the fixed portion 111 can be connected and arranged, and the movable section 1122 is detachably connected to the connecting end. When disassembly is required, the movable section 1122 is deflected relative to the connecting section 1121, thereby making the tight fit relationship between the guide portion 112, the first guide member 131, and the second guide member 132 contact, which facilitates disassembly.

[0111] In this embodiment, the guide portion 112 includes two movable segments 1122, which are respectively provided on either side of the connecting segment 1121 along the first direction Y. It is understood that the movable segments 1122 may correspond to portions of the guide portion 112 that protrude relative to the fixed portion 111 along the first direction Y. The movable segments 1122 and the connecting segment 1121 may be rotatably connected via a known and feasible rotating shaft 1132 structure and / or a hinge structure.

[0112] Further integration Figure 6 As shown, in one embodiment, the fixing assembly 11 further includes a disassembly portion 113 , which is detachably connected to the fixing portion 111 and / or the guide portion 112 to support the movable segment 1122 .

[0113] In this embodiment, the disassembly portion 113 includes two cross-rotating support rods 1131, with the middle portions of the two support rods 1131 being rotatably connected via a rotating shaft 1132. By rotating the two support rods 1131, the angle between the two support rods 1131 can be adjusted, thereby varying the linear distances between the ends of the two support rods 1131 and the rotating shaft 1132 along the first direction Y and the second direction X, respectively. Specifically, the lengths of the two support rods 1131 can be the same and greater than the spacing between the two guide portions 112 along the second direction X. Rotating the two support rods 1131 such that the linear distance between the ends of the support rods 1131 and the rotating shaft 1132 is less than the spacing between the two guide portions 112 along the second direction X allows the disassembly portion 113 to be inserted into the hollow area 110. Rotating the two support rods 1131 again causes the ends of the support rods 1131 to abut against the two movable segments 1122, thereby supporting the two guide portions 112 spaced apart along the second direction X.

[0114] It is understood that the ends of the struts 1131 abut against the guide portion 112 along the second direction X toward the fixing portion 111, thereby achieving a tight fit. The disassembly portion 113 may also be provided with a locking member 1133 that is detachably disposed between the two struts 1131. When the struts 1131 need to be rotated, the locking member 1133 can be removed, and when the struts 1131 need to be locked, the locking member 1133 can be re-engaged.

[0115] Further integration Figure 7 As shown, in one embodiment, the driving portion 133 and the mounting bracket 135 can be disposed corresponding to the hollow area 110. It can be understood that disposing the driving portion 133 and the mounting bracket 135 corresponding to the hollow area 110 can, on the one hand, support the guide portion 112 with the help of the driving portion 133 and the mounting bracket 135, and on the other hand, improve the overall space utilization of the driving unit 10.

[0116] Further integration Figure 1 and Figure 8 As shown, an embodiment of the present application also provides a 3D printing device 1, which includes a building module 18, a gantry 19 and a driving unit 10, the driving component 13 is connected to the gantry 19 through the fixing component 11, the building module 18 is connected to the connecting component 12 and is movably arranged compared to the gantry 19.

[0117] In one embodiment, the drive unit 10 is installed and positioned with the gantry 19 via the fixing portion 111 , thereby achieving direct positioning of the drive unit 10 , ensuring the position accuracy of the drive unit 10 and the building module 18 relative to the gantry 19 , and thereby improving printing accuracy.

[0118] In one embodiment, the 3D printing device 1 further includes a base unit 17, which is connected to the gantry 19 via the drive unit 10. The base unit 17 can accommodate other components of the 3D printing device 1, such as a display and control circuitry. The base unit 17 and the drive unit 10 are separately connected and positioned with the gantry 19, which reduces installation complexity and improves printing accuracy.

[0119] In this embodiment, to improve the space utilization of the 3D printing apparatus 1, the base unit 17 and the drive unit 10 are embedded. That is, the drive unit 10 and the base unit 17 are respectively connected and positioned with the gantry 19. The second drive assembly 13 and the base unit 17 have approximately the same thickness along the third direction Z. The drive unit 10 and the base unit 17 are also disposed substantially on the same layer, so that the drive unit 10 is embedded within the base unit 17, saving space and improving the aesthetics.

[0120] In one embodiment, the 3D printing device 1 further includes a drive unit 15 and a nozzle unit 16. The drive unit 15 is connected to the gantry 19, and the nozzle unit 16 is connected to the drive unit 15. The drive unit 15 is used to drive the nozzle unit 16 to move relative to the build module 18 to achieve 3D printing.

[0121] It can be understood that the nozzle unit 16 is used to heat, soften and extrude the consumable material, and the building module 18 is used to receive the softened consumable material and shape it to complete 3D printing.

[0122] In one embodiment, the building module 18 includes a carrier 181 and a printing platform 182 . The carrier 181 is connected to the driving unit 10 , and the printing platform 182 is connected to the carrier 181 . The printing platform 182 is disposed on a side of the carrier 181 away from the driving unit 10 .

[0123] In this embodiment, the carrier 181 is used to connect to the drive unit 10 so that the building module 18 can move with the drive unit 10. The printing platform 182 is used to support the softened consumables. The printing platform 182 and the carrier 181 are detachably arranged to facilitate replacement of different printing platforms 182.

[0124] Those skilled in the art will appreciate that the construction module 18 may also include other structures, such as a hot bed for helping to keep warm, a temperature sensor for sensing temperature, etc., which may be a known and feasible structure and will not be described in detail here.

[0125] The specific embodiments of the present application have been described above with reference to the accompanying drawings. However, those skilled in the art will appreciate that various modifications and substitutions may be made to the specific embodiments of the present application without departing from the spirit and scope of the present application. Such modifications and substitutions are intended to fall within the scope of the present application.

Claims

1. A driving unit for driving a building module for 3D printing, characterized in that: The driving unit includes: A connecting component, used to connect and drive the building module to move; a driving assembly for driving the connecting assembly to move along a first direction, the driving assembly comprising at least two first guide members spaced apart along a second direction; A fixing assembly is used to fix the driving unit. The fixing assembly is clamped between at least two of the first guide members along the second direction. The first direction intersects with the second direction. The connecting assembly is slidably matched with the fixing assembly.

2. The drive unit according to claim 1, wherein: The fixing assembly includes: a fixing portion, configured to fix the driving unit; The guide portion is connected to the fixing portion and is used to enable the connecting component to slide and cooperate with the fixing component.

3. The drive unit according to claim 2, wherein: The guide portion comprises: a connecting section, configured to be connected to the fixing portion; The movable section is rotatably connected to the connecting section and is configured to be rotatable relative to the fixed portion.

4. The drive unit according to claim 3, wherein: The guide portion includes two movable segments, which are respectively arranged on both sides of the connecting segment along the first direction.

5. The drive unit according to claim 2, wherein: The fixing assembly includes: The two guide portions are respectively provided on both sides of the fixing portion along the second direction; Each of the guide portions is configured to cooperate with at least one of the first guide members disposed on the same side along the second direction.

6. The drive unit according to claim 5, wherein: The fixing portion and the guide portion are arranged to form a hollow area, and the driving assembly includes: a transmission belt fixedly connected to the connecting assembly; a driving portion, which is in driving connection with the transmission belt, and the driving portion is arranged corresponding to the hollow area; A mounting frame, which is movably connected to the transmission belt, and the mounting frame is arranged corresponding to the hollow area; The driving portion and the mounting bracket are arranged on two opposite sides of the fixing portion along the first direction, and the transmission belt is arranged across the fixing portion along the first direction.

7. The drive unit according to claim 2, wherein: The fixing assembly further comprises: The disassembly portion is detachably connected to the fixing portion and / or the guide portion and is used to support the guide portion.

8. The drive unit according to claim 2, wherein: The drive assembly further includes: a second guide member, slidably arranged with the first guide member; A mounting groove is formed on a side of the guide portion away from the fixing portion, and the second guide member is arranged in the mounting groove.

9. The drive unit according to claim 2, wherein: The connection component includes: a profile connecting portion, which is used to connect to the driving assembly, wherein the width of the profile connecting portion along the second direction is greater than the width of the fixing assembly along the second direction, and the first guide member is provided on a side of the profile connecting portion close to the fixing assembly; The platform connection portion is used to connect with the building module, and the platform connection portion is arranged on the side of the profile connection portion away from the fixing assembly.

10. A 3D printing device, characterized in that: It comprises a building module and a driving unit according to any one of claims 1 to 9, wherein the driving unit is used to drive the building module.

11. The 3D printing device according to claim 10, wherein: The construction module includes a carrier and a printing platform plate, the carrier is connected to the driving unit, the printing platform plate is connected to the carrier, and the printing platform plate is arranged on a side of the carrier away from the driving unit.

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