Motion guiding device for 3D printing and 3D printing equipment

Abstract

The utility model provides a motion guiding device for 3D printing and 3D printing equipment. The motion guiding device for 3D printing comprises a first direction driving assembly and a second direction driving assembly. The first direction driving assembly comprises a first guide rail part, a first driving part, a first transmission part and a first guide part; the second direction driving assembly comprises a second guide rail part, a second driving part, a second guide part, a frame part, a first crimping part, a second crimping part, a first auxiliary part and a second auxiliary part; the first driving part can drive the first guide part to move in the first direction through the first transmission part, so that the second guide rail part moves in the first direction through the first crimping part, the second crimping part, the first auxiliary part and the second auxiliary part; the second driving part can drive the second guiding part to move in the second direction, so that the 3D printing nozzle moves on the second guiding part in the second direction through the pressing tool. The connection mode of the first direction driving assembly and the second direction driving assembly ensures the stability during printing.

Description

Technical Field

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

[0002] 3D printing technology, as an emerging technology field, is developing rapidly. With the integration of technology iteration and the change of industry demand, 3D printing technology has a higher demand positioning in more and more industries. Printing speed, printing accuracy and printing size have always been the key technologies that restrict each other in 3D printing applications. In the past, the problems of slow 3D printing speed and long printing time were the key technical problems in the industry. With the development of technology, 3D printing technology of fused deposition modeling has entered the era of high-speed 3D printing. The corresponding printing accuracy and printing size restrict the development of 3D printing equipment. From the perspective of mechanical kinematics, in order to ensure printing accuracy, in addition to software and hardware control technology, the substantial increase in printing speed has brought challenges to the stability of the three-dimensional structure. The larger the molding space size, the greater the requirements for the stability of the three-dimensional structure. With the increasing demand for high-speed printing of large models in the industry, the technical problems of solving the stability of the printing structure for large-size high-speed printing technology are also more significant, and the existing structure cannot meet the above requirements.

[0003] Therefore, there is an urgent need for a motion guide device and a 3D printing device for 3D printing, which can solve the technical problems existing in the prior art to a certain extent. Utility Model Content

[0004] The purpose of this application is to provide a motion guide device and a 3D printing device for 3D printing, so as to ensure stability during high-speed printing to a certain extent and further ensure printing accuracy.

[0005] The present application provides a motion guide device for 3D printing, comprising a support frame; a first direction driving component and a second direction driving component;

[0006] The first direction driving assembly includes a first guide rail portion, a first driving portion and a first guiding portion;

[0007] A plurality of the first rail parts and the first guide parts are provided and extend along a first direction, a plurality of the first rail parts are arranged at intervals on a first side surface of the support frame along a second direction, a plurality of the first guide parts are arranged at intervals on a second side surface of the support frame opposite to the first side surface along the second direction, and the first rail parts correspond to the first guide parts one by one;

[0008] The second direction driving assembly includes a second guide rail portion, a second driving portion, a second guide portion, a frame portion, a first crimping portion, a second crimping portion, a first auxiliary portion and a second auxiliary portion;

[0009] The first auxiliary part and the second auxiliary part are respectively slidably arranged on the adjacent first guide rail part, one end of the first crimping part and the second crimping part are respectively pressed on the adjacent first guide part and the other end are respectively connected to the first auxiliary part and the second auxiliary part; the frame part extends along the second direction and its two ends are respectively fixed to the first auxiliary part and the second auxiliary part, the second guide rail part is arranged on the frame part and extends along the second direction, the first auxiliary part includes a fourth slider and the first auxiliary part is connected to the second guide rail part through the fourth slider, and the second guide part is arranged on the frame part and connected to the second driving part;

[0010] The 3D printing nozzle is slidably arranged on the second guide portion through a clamping fixture.

[0011] In the above technical solution, further, the first direction driving assembly also includes a first transmission part;

[0012] One end of the adjacent first guide portion is connected via the first transmission portion, and the first driving portion is connected to the first transmission portion;

[0013] The first driving portion can drive the first guide portion to move along the first direction through the first transmission portion, so that the second guide rail portion moves along the first direction through the first crimping portion, the second crimping portion, the first auxiliary portion and the second auxiliary portion; the second driving portion can drive the second guide portion to move along the second direction, so that the 3D printing nozzle moves along the second direction on the second guide portion through the clamping tooling.

[0014] In the above technical solution, further, the first direction driving assembly includes a first guide rail that can serve as the first guide rail portion, a first driving motor that can serve as the first driving portion, a transmission belt that can serve as the first transmission portion, a polished rod, a pulley, and a first guide belt that can serve as the first guide portion;

[0015] The first guide rails are provided in two numbers, and the two first guide rails are extended along the first direction and provided on the first side surface of the support frame;

[0016] The first guide belts are provided in two numbers and are arranged on the second side surface of the support frame in one-to-one correspondence with the two first guide rails, and the two ends of the polished rod are arranged on adjacent first guide belts through the pulleys;

[0017] The end of the first guide belt away from the polished rod is fixed to the support frame through a pulley, a fixed shaft, and a fixed frame; the output shaft of the first drive motor is connected to the polished rod through a transmission belt;

[0018] Starting the first driving motor can drive the transmission belt to rotate, and rotating the transmission belt can drive the first guide belt to operate along the first direction through the polished rod.

[0019] In the above technical solution, further, the first direction driving assembly also includes a bearing bracket;

[0020] A plurality of bearing brackets are provided, and the plurality of bearing brackets are arranged on the polished rod at intervals along the length direction of the polished rod.

[0021] In the above technical solution, further, the first direction driving assembly also includes a tensioning assembly;

[0022] The tensioning assembly is disposed at one end of the first guide belt away from the polished rod, and the tensioning assembly is used to adjust the length of the first guide belt in the first direction to change the tightness of the first guide belt.

[0023] In the above technical solution, further, the second guide rail portion includes a second guide rail, the frame portion includes a profile, the first crimping portion includes a first crimping plate and a second crimping plate, and the first auxiliary portion includes an L-shaped first auxiliary plate, a first slider and a first connecting plate;

[0024] The profile extends along the second direction, and the second guide rail is disposed on the profile and extends along the second direction;

[0025] The first crimping plate and the second crimping plate are crimped to the first guide belt relative to each other, the first slider is slidably set on the first guide rail, and the L-shaped first auxiliary plate is fixedly set on the first slider; the second crimping plate is connected to the first side wall of the L-shaped first auxiliary plate through the first connecting plate, and the second side wall of the L-shaped first auxiliary plate is fixed to the second guide rail through the fourth slider.

[0026] In the above technical solution, further, the second driving part includes a second driving motor, the second guide part includes a second guide belt, the second crimping part includes a third crimping plate and a fourth crimping plate, and the second auxiliary part includes an auxiliary plate, a second slider, a second connecting plate and a motor bracket;

[0027] The third crimping plate and the fourth crimping plate are relatively crimped to the first guide belt, the second slider is slidably arranged on the first guide rail, and the auxiliary plate is fixedly arranged on the second slider; the fourth crimping plate is connected to the first side wall of the auxiliary plate through the second connecting plate, the motor bracket is arranged above the auxiliary plate, and the other end of the motor bracket is fixed to the profile;

[0028] The second guide belt extends along the second direction and passes through the profile of the pulley fixing portion at the first auxiliary portion end;

[0029] The second driving motor is arranged on the motor bracket, and the output shaft of the second driving motor is connected with the second guide belt at the second auxiliary part end through a pulley.

[0030] In the above technical solution, further, the second auxiliary part also includes a third connecting plate;

[0031] The motor bracket is provided with a mounting groove, one end of the third connecting plate is fixed to the mounting groove and the other end is connected to the profile, so that the motor bracket is fixed to the profile.

[0032] In the above technical solution, further, the clamping tool includes a third slider, a fourth connecting plate, a fifth crimping plate and a sixth crimping plate;

[0033] The fifth pressing plate and the sixth pressing plate are pressed against the second guide belt, the sixth pressing plate is connected to the third slider via the fourth connecting plate, and the 3D printing nozzle is fixed to the third slider;

[0034] Driving the second driving motor can drive the second guide belt to rotate, and drive the 3D printing nozzle to move along the second direction through the third slider.

[0035] The present application also provides a 3D printing device, comprising the above-mentioned motion guiding device for 3D printing.

[0036] Compared with the prior art, this application has the following beneficial effects:

[0037] During actual use, the first driving part can drive the first guide part to move in the first direction through the first transmission part, so that the second guide rail part moves in the first direction through the first crimping part, the second crimping part, the first auxiliary part and the second auxiliary part; the second driving part can drive the second guide part to move in the second direction, so that the 3D printing nozzle moves in the second direction on the second guide part through the clamping tooling.

[0038] In summary, the connection method between the first direction drive component and the second direction drive ensures stability during high-speed printing and further ensures printing accuracy.

[0039] The present application also provides a 3D printing device based on the above-mentioned motion guide device for 3D printing, so it has all the beneficial effects of the above-mentioned motion guide device for 3D printing, and thus will not be described in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 A schematic diagram of the structure of the motion guide device for 3D printing provided by the present application at a first viewing angle;

[0042] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0043] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0044] Figure 4 A schematic diagram of the structure of the motion guide device for 3D printing provided by the present application at a second viewing angle;

[0045] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0046] Figure 6 for Figure 4 Enlarged view of point D in the middle;

[0047] Figure 7 for Figure 4 Enlarged view of point E in the middle;

[0048] Figure 8 A schematic structural diagram of the motion guide device for 3D printing provided in this application from a third viewing angle;

[0049] Fig. 9 A schematic structural diagram of the motion guide device for 3D printing provided in the present application at a fourth viewing angle;

[0050] Fig.10 for Fig. 9 Enlarged view of point F in the middle;

[0051] Fig.11A schematic structural diagram of the motion guide device for 3D printing provided in the present application at a fifth viewing angle;

[0052] Fig.12 for Fig.11 Enlarged view of point G in the middle;

[0053] Fig.13 A schematic structural diagram of the motion guide device for 3D printing provided in the present application at a sixth viewing angle;

[0054] Fig.14 for Fig.13 Enlarged view of H in the middle;

[0055] Fig.15 for Fig.13 The enlarged image at point I in the middle;

[0056] Fig.16 A schematic structural diagram of the motion guide device for 3D printing provided in the present application at a seventh viewing angle;

[0057] Fig.17 for Fig.16 Enlarged view of J in the middle.

[0058] Figure numerals: 3-first guide rail portion; 4-first driving portion; 5-first transmission portion; 6-first guide portion; 7-first direction; 8-second direction; 10-support frame; 11-first side surface; 12-second side surface; 13-second guide rail portion; 14-second driving portion; 15-second guide portion; 16-frame portion; 17-first crimping portion; 18-second crimping portion; 19-first auxiliary portion; 20-second auxiliary portion; 21-first guide rail; 22-first driving motor; 23-transmission belt; 24-light rod; 25-pulley; 26-first guide belt; 27-fixed shaft; 2 8-fixed frame; 29-bearing bracket; 31-adjusting frame; 32-adjusting screw; 33-adjusting nut; 34-second guide rail; 35-profile; 36-first crimping plate; 37-second crimping plate; 38-L-type first auxiliary plate; 39-first slider; 40-first connecting plate; 41-first side wall; 42-second side wall; 43-second drive motor; 44-second guide belt; 45-third crimping plate; 46-fourth crimping plate; 47-auxiliary plate; 48-second slider; 49-second connecting plate; 50-motor bracket; 51-third connecting plate; 52-fourth slider. DETAILED DESCRIPTION

[0059] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0060] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0061] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0062] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0063] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0064] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be located "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0065] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0066] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0067] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0068] Embodiment 1

[0069] Combine the following Figure 1-Figure 17 A motion guiding device for 3D printing provided by the present application is described in detail.

[0070] The present application provides a motion guide device for 3D printing, the printer comprises a support frame 10, combined with Figure 1As shown, the support frame 10 is concave; the motion guide device for 3D printing also includes a first direction driving component and a second direction driving component; the first direction driving component can drive the 3D printing nozzle to move along the first direction 7, and the second direction driving component can drive the 3D printing nozzle to move along the second direction 8; preferably, the first direction 7 refers to the X-axis direction during normal use, and the second direction 8 refers to the Y-axis direction during normal use, that is, the first direction 7 driving component and the second direction 8 driving component can drive the 3D printing nozzle to move in the plane formed by XY.

[0071] Specifically, the first direction 7 driving component includes a first guide rail portion 3, a first driving portion 4, a first transmission portion 5 and a first guide portion 6; wherein, the first guide rail portion 3 and the first guide portion 6 are both provided with multiple and extend along the first direction 7, multiple first guide rail portions 3 are arranged at intervals on the first side surface 11 of the support frame 10 along the second direction 8, multiple first guide portions 6 are arranged at intervals on the second side surface 12 of the support frame 10 opposite to the first side surface 11 along the second direction 8, and the first guide rail portion 3 and the first guide portion 6 correspond one-to-one, that is, the first guide portion 6 and the first guide rail portion 3 are respectively arranged on both sides of the support frame 10; one end of adjacent first guide portions 6 is connected through the first transmission portion 5, and the first driving portion 4 is connected to the first transmission portion 5.

[0072] Furthermore, two first guide portions 6 and two first guide rail portions 3 are provided.

[0073] Specifically, the second direction 8 driving assembly includes a second rail portion 13, a second driving portion 14, a second guide portion 15, a frame portion 16, a first crimping portion 17, a second crimping portion 18, a first auxiliary portion 19 and a second auxiliary portion 20. The first auxiliary portion 19 and the second auxiliary portion 20 are respectively slidably arranged on the adjacent first rail portion 3, one end of the first crimping portion 17 and the second crimping portion 18 are respectively pressed on the adjacent first guide portion 6 and the other end is respectively connected to the first auxiliary portion 19 and the second auxiliary portion 20; the frame portion 16 extends along the second direction 8 and its two ends are respectively fixed to the first auxiliary portion 19 and the second auxiliary portion 20, the second rail portion 13 is arranged on the frame portion 16 and extends along the second direction 8, and the second guide portion 15 is arranged on the frame portion 16 and connected to the second driving portion 14.

[0074] Specifically, the 3D printing nozzle is slidably disposed on the second guide portion 15 through a clamping fixture.

[0075] Specifically, the first auxiliary part includes a fourth slider 52, and the first auxiliary part is connected to the second guide rail part through the fourth slider, that is, the first auxiliary part and the second guide rail are not rigidly connected but movably connected, so it can provide a certain compatibility with errors generated during the movement of other components.

[0076] During actual use, the first driving part 4 can drive the first guide part 6 to move along the first direction 7 through the first transmission part 5, so that the second guide rail part 13 moves along the first direction 7 through the first crimping part 17, the second crimping part 18, the first auxiliary part 19 and the second auxiliary part 20; the second driving part 14 can drive the second guide part 15 to move along the second direction 8, so that the 3D printing nozzle moves along the second direction 8 on the second guide part 15 through the clamping tooling.

[0077] In summary, the connection method between the first direction 7 driving component and the second direction 8 driving component ensures stability during high-speed printing and further ensures printing accuracy.

[0078] In this embodiment, the first direction 7 drive assembly includes a first guide rail 21 that can serve as a first guide rail portion 3, a first drive motor 22 that can serve as a first drive portion 4, a drive belt 23 that can serve as a first transmission portion 5, a light rod 24, a pulley 25, and a first guide belt 26 that can serve as a first guide portion 6.

[0079] Specifically, two first guide rails 21 are provided, and the two first guide rails 21 extend along the first direction 7 and are provided on the first side surface 11 of the supporting frame 10 .

[0080] Specifically, two first guide belts 26 are provided and are disposed on the second side surface 12 of the support frame 10 in one-to-one correspondence with the two first guide rails 21 , and both ends of the light rod 24 are disposed between adjacent first guide belts 26 via pulleys 25 .

[0081] Specifically, one end of the first guide belt 26 away from the light rod 24 is fixed to the support frame 10 through a pulley 25 , a fixed shaft 27 , and a fixed frame 28 ; the output shaft of the first drive motor 22 is connected to the light rod 24 through a transmission belt 23 .

[0082] In actual use, starting the first drive motor 22 can drive the transmission belt 23 to rotate. The rotating transmission belt 23 can drive the optical rod 24 to rotate through the pulley 25. The rotating optical rod 24 can drive the first guide belt 26 connected to it through the pulley 25 to move. Because the 3D printing nozzle is indirectly connected to the first guide belt 26, it will drive the 3D printing nozzle to move along the first direction 7.

[0083] In this embodiment, further, the first direction 7 driving assembly further includes a bearing bracket 29. A plurality of bearing brackets 29 are provided, and the plurality of bearing brackets 29 are spaced apart on the polished rod 24 along the length direction of the polished rod 24.

[0084] Combination Figure 3As shown, three bearing brackets 29 are provided, and the three bearing brackets 29 are spaced apart and sleeved on the light rod 24. The bearing bracket 29 is connected to the support frame 10. The bearing bracket 29 includes a bracket and a bearing arranged directly therein. The bearing is sleeved on the light rod 24. The setting of the bearing bracket 29 can improve the rotation stability of the light rod 24 and prevent the light rod 24 from being too long, which causes deformation of both ends of the light rod 24.

[0085] In this embodiment, further, the first direction 7 driving assembly further includes a tensioning assembly. The tensioning assembly is disposed on the support frame 10 and disposed at one end of the first guide belt 26 away from the polished rod 24, and the tensioning assembly is used to adjust the length of the first guide belt 26 in the first direction 7 to change the tightness of the first guide belt 26.

[0086] Specifically, the tensioning assembly includes an adjusting frame 31, an adjusting screw 32 and an adjusting nut 33; wherein the fixed shaft 27 passes through the pulley 25 and is overlapped at both ends on the fixed frame 28; the adjusting frame 31 is in a concave shape, the adjusting frame 31 is arranged in the fixed frame 28 and its two ends are sleeved on the fixed shaft 27, one end of the adjusting screw 32 is threadedly connected to the adjusting frame 31 and the other end passes through the fixed frame 28 and is connected to the adjusting nut 33.

[0087] In actual use, the length of the first guide belt 26 in the first direction 7 can be changed by screwing the adjusting nut 33 and adjusting the screw rod 32. Further, screwing the adjusting nut 33 can make the fixed frame 28 move closer to or away from the first guide belt 26, and because both ends of the fixed frame 28 are connected to the fixed shaft 27, the length of the first guide belt 26 can be adjusted, thereby adjusting the tension of the first guide belt 26.

[0088] In this embodiment, the second guide rail portion 13 includes a second guide rail 34 , the frame portion 16 includes a profile 35 , the first crimping portion 17 includes a first crimping plate 36 and a second crimping plate 37 , and the first auxiliary portion 19 includes an L-shaped first auxiliary plate 38 , a first slider 39 and a first connecting plate 40 .

[0089] Specifically, the profile 35 extends along the second direction 8 , and the second guide rail 34 is disposed on the upper surface of the profile 35 and extends along the second direction 8 .

[0090] Specifically, the first crimping plate 36 and the second crimping plate 37 are relatively crimped to the first guide belt 26. Furthermore, both the first crimping plate 36 and the second crimping plate 37 have teeth, and the teeth on the first crimping plate 36 and the second crimping plate 37 are adapted to the teeth on the first guide belt 26, ensuring that the first crimping plate 36 and the second crimping plate 37 can be just buckled onto the first guide belt 26 wheel 25; in the actual installation process, after the first crimping plate 36 and the second crimping plate 37 are buckled onto the first guide belt 26, the first crimping plate 36 and the second crimping plate 37 are locked together by bolts, thereby ensuring that the first crimping plate 36 and the second crimping plate 37 cannot fall off the first guide belt 26.

[0091] Specifically, the first slider 39 is slidably set on the first guide rail 21, and the first side wall 41 of the L-shaped first auxiliary plate 38 is fixedly set on the first slider 39; the second crimping plate 37 is connected to the first side wall 41 of the L-shaped first auxiliary plate 38 through the first connecting plate 40, and the second side wall 42 of the L-shaped first auxiliary plate 38 is fixed to the second guide rail 34 through the fourth slider 52.

[0092] Furthermore, the first connecting plate 40 and the first guide rail 21 form an inclined angle of 60°.

[0093] In this embodiment, the second driving part 14 includes a second driving motor 43, the second guide part 15 includes a second guide belt 44, the second crimping part 18 includes a third crimping plate 45 and a fourth crimping plate 46, and the second auxiliary part 20 includes an auxiliary plate 47, a second slider 48, a second connecting plate 49 and a motor bracket 50.

[0094] Specifically, the third crimping plate 45 and the fourth crimping plate 46 are crimped to the first guide belt 26 (the principle of the third crimping plate 45 and the fourth crimping plate 46 being crimped to the first guide belt 26 is the same as the first crimping plate 36 and the second crimping plate 37 mentioned above, which will not be elaborated here), the second slider 48 is slidably set on the first guide rail 21, and the auxiliary plate 47 is fixedly set on the second slider 48; the fourth crimping plate 46 is connected to the first side wall 41 of the auxiliary plate 47 through the second connecting plate 49, and a motor bracket 50 is arranged above the auxiliary plate 47, and the other end of the motor bracket 50 is fixed to the profile 35.

[0095] Specifically, the second guide belt 44 extends along the second direction 8 and passes through the fixed portion profile 35 of the pulley 25 at the end of the first auxiliary portion 19 .

[0096] Specifically, the second drive motor 43 is disposed on the motor bracket 50, and the output shaft of the second drive motor 43 is connected to the second guide belt 44 at the second auxiliary part 20 through the pulley 25. That is, when the second drive motor 43 is started, the second guide belt 44 can move along the second direction 8.

[0097] In summary, when the first guide belt 26 moves, one side is driven by the first crimping plate 36, the second crimping plate 37, the first slider 39 and the L-shaped first auxiliary plate 38, and the other side is driven by the third crimping plate 45, the fourth crimping plate 46, the auxiliary plate 47 and the second slider 48 to drive the second guide rail 34 to move along the first direction 7.

[0098] In this embodiment, the second auxiliary part 20 further includes a third connecting plate 51. The motor bracket 50 is provided with a mounting slot, one end of the third connecting plate 51 is fixed to the mounting slot and the other end is connected to the profile 35, so that the motor bracket 50 is fixed to the profile 35.

[0099] In this embodiment, the pressing tool includes a third sliding block, a fourth connecting plate, a fifth pressing plate and a sixth pressing plate.

[0100] Specifically, the fifth pressing plate and the sixth pressing plate are pressed against the second guide belt 44, the sixth pressing plate is connected to the third slider via the fourth connecting plate, and the 3D printing nozzle is fixed to the third slider.

[0101] In actual use, driving the second driving motor can drive the second guide belt 44 to rotate, and drive the 3D printing nozzle to move along the second direction 8 through the third slider.

[0102] In this embodiment, preferably, the X-axis movement direction stroke is 400mm, and the Y-axis movement direction stroke is 350mm. In this molding space, the axis structure can meet the maximum scanning speed of 600mm / s, the maximum acceleration of 20000mm / s2, and the XY axis positioning accuracy of 0.002mm, ensuring a stable printing process and effective printing accuracy, meeting the structural requirements of large-size high-speed printing, and the comprehensive printing speed index is increased by three times;

[0103] In summary, the present application reduces the process requirements for the connection between the motion axes, and has better compatibility with the errors generated in mechanical kinematics (such as part processing measurement errors, errors caused by gaps during assembly, and errors caused by part wear due to long-term use). For example, to meet the accuracy requirements of 3D printing, the X motion direction and the Y motion direction are perpendicular to each other, and the corresponding motion structure is also set up with a vertical connection. The errors generated in the assembly will be further amplified in high-speed printing, which is one of the reasons why high-speed printing is prone to problems. The technical solution of the present application has better compatibility with this. At the same time, even if the assembly produces a deflection within 3° (the assembly produces a deflection within 2°) based on the normal mechanical error range, the motion axis structure of the present application can also achieve the required printing effect.

[0104] Embodiment 2

[0105] In this embodiment, a 3D printing device is provided, which is based on the above-mentioned motion guide device for 3D printing, and thus has all the beneficial effects of the above-mentioned motion guide device for 3D printing, and thus will not be described in detail.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A motion guide device for 3D printing, characterized in that: It includes a supporting frame, a first direction driving component and a second direction driving component; The first direction driving assembly includes a first guide rail portion, a first driving portion and a first guiding portion; A plurality of the first rail parts and the first guide parts are provided and extend along a first direction, a plurality of the first rail parts are arranged at intervals on a first side surface of the support frame along a second direction, a plurality of the first guide parts are arranged at intervals on a second side surface of the support frame opposite to the first side surface along the second direction, and the first rail parts correspond to the first guide parts one by one; The second direction driving assembly includes a second guide rail portion, a second driving portion, a second guide portion, a frame portion, a first crimping portion, a second crimping portion, a first auxiliary portion and a second auxiliary portion; The first auxiliary part and the second auxiliary part are respectively slidably arranged on the adjacent first guide rail part, one end of the first crimping part and the second crimping part are respectively pressed on the adjacent first guide part and the other end are respectively connected to the first auxiliary part and the second auxiliary part; the frame part extends along the second direction and its two ends are respectively fixed to the first auxiliary part and the second auxiliary part, the second guide rail part is arranged on the frame part and extends along the second direction, the first auxiliary part includes a fourth slider and the first auxiliary part is connected to the second guide rail part through the fourth slider, and the second guide part is arranged on the frame part and connected to the second driving part; The 3D printing nozzle is slidably arranged on the second guide portion through a clamping fixture.

2. The motion guide device for 3D printing according to claim 1, characterized in that: The first direction driving assembly also includes a first transmission part; One end of the adjacent first guide portion is connected via the first transmission portion, and the first driving portion is connected to the first transmission portion; The first driving portion can drive the first guide portion to move along the first direction through the first transmission portion, so that the second guide rail portion moves along the first direction through the first crimping portion, the second crimping portion, the first auxiliary portion and the second auxiliary portion; the second driving portion can drive the second guide portion to move along the second direction, so that the 3D printing nozzle moves along the second direction on the second guide portion through the clamping tooling.

3. The motion guide device for 3D printing according to claim 2, characterized in that: The first direction driving assembly includes a first guide rail that can serve as the first guide rail portion, a first driving motor that can serve as the first driving portion, a driving belt that can serve as the first transmission portion, a polished rod, a pulley, and a first guide belt that can serve as the first guide portion; The first guide rails are provided in two numbers, and the two first guide rails are extended along the first direction and provided on the first side surface of the support frame; The first guide belts are provided in two numbers and are arranged on the second side surface of the support frame in one-to-one correspondence with the two first guide rails, and the two ends of the polished rod are arranged on adjacent first guide belts through the pulleys; The end of the first guide belt away from the polished rod is fixed to the support frame through a pulley, a fixed shaft, and a fixed frame; the output shaft of the first drive motor is connected to the polished rod through a transmission belt; Starting the first driving motor can drive the transmission belt to rotate, and rotating the transmission belt can drive the first guide belt to operate along the first direction through the polished rod.

4. The motion guide device for 3D printing according to claim 3, characterized in that: The first direction drive assembly also includes a bearing bracket; A plurality of bearing brackets are provided, and the plurality of bearing brackets are arranged on the polished rod at intervals along the length direction of the polished rod.

5. The motion guide device for 3D printing according to claim 3, characterized in that: The first direction driving assembly further includes a tensioning assembly; The tensioning assembly is disposed at one end of the first guide belt away from the polished rod, and the tensioning assembly is used to adjust the length of the first guide belt in the first direction to change the tightness of the first guide belt.

6. The motion guide device for 3D printing according to claim 3, characterized in that: The second guide rail portion includes a second guide rail, the frame portion includes a profile, the first crimping portion includes a first crimping plate and a second crimping plate, and the first auxiliary portion includes an L-shaped first auxiliary plate, a first slider, and a first connecting plate; The profile extends along the second direction, and the second guide rail is disposed on the profile and extends along the second direction; The first crimping plate and the second crimping plate are crimped to the first guide belt relative to each other, the first slider is slidably set on the first guide rail, and the L-shaped first auxiliary plate is fixedly set on the first slider; the second crimping plate is connected to the first side wall of the L-shaped first auxiliary plate through the first connecting plate, and the second side wall of the L-shaped first auxiliary plate is fixed to the second guide rail through the fourth slider.

7. The motion guide device for 3D printing according to claim 6, characterized in that: The second driving part includes a second driving motor, the second guiding part includes a second guiding belt, the second crimping part includes a third crimping plate and a fourth crimping plate, and the second auxiliary part includes an auxiliary plate, a second slider, a second connecting plate and a motor bracket; The third crimping plate and the fourth crimping plate are relatively crimped to the first guide belt, the second slider is slidably arranged on the first guide rail, and the auxiliary plate is fixedly arranged on the second slider; the fourth crimping plate is connected to the first side wall of the auxiliary plate through the second connecting plate, the motor bracket is arranged above the auxiliary plate, and the other end of the motor bracket is fixed to the profile; The second guide belt extends along the second direction and passes through the profile of the pulley fixing portion at the first auxiliary portion end; The second driving motor is arranged on the motor bracket, and the output shaft of the second driving motor is connected with the second guide belt at the second auxiliary part end through a pulley.

8. The motion guide device for 3D printing according to claim 7, characterized in that: The second auxiliary portion further includes a third connecting plate; The motor bracket is provided with a mounting groove, one end of the third connecting plate is fixed to the mounting groove and the other end is connected to the profile, so that the motor bracket is fixed to the profile.

9. The motion guide device for 3D printing according to claim 8, characterized in that: The clamping tool comprises a third slider, a fourth connecting plate, a fifth crimping plate and a sixth crimping plate; The fifth pressing plate and the sixth pressing plate are pressed against the second guide belt, the sixth pressing plate is connected to the third slider via the fourth connecting plate, and the 3D printing nozzle is fixed to the third slider; Driving the second driving motor can drive the second guide belt to rotate, and drive the 3D printing nozzle to move along the second direction through the third slider.

10. A 3D printing device, characterized in that: A motion guide device for 3D printing based on any one of claims 1-9.

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