Guide mechanism and three-dimensional printer

Abstract

The utility model provides a guide mechanism and a three-dimensional printer, and belongs to the technical field of printing heads. The guide mechanism comprises a guide assembly, a transmission piece and at least one elastic piece. The transmission part is arranged on the guide assembly in a sliding mode. The elastic parts are in direct or indirect contact with at least part of the guide assembly, grooves for containing the elastic parts are formed in the transmission part, each elastic part is located in the corresponding groove, and the grooves are used for providing axial limiting for the elastic parts so that the elastic parts can be used for adjusting the position of the guide assembly in the radial direction of the guide assembly. The three-dimensional printer comprises a printing head assembly and the guide mechanism. Wherein the printing head assembly is connected with a transmission part of the guide mechanism. The elastic piece is arranged to be in contact with the guide assembly, so that one guide shaft in the guide assembly adjusts assembling and manufacturing errors through the elastic piece, and the problems that the transmission piece is clamped or suffocated when sliding on the guide assembly are solved.

Description

Technical Field

[0001] This application relates to the technical field of print heads, and particularly to a guiding mechanism and a 3D printer. Background Art

[0002] A 3D printer, also known as a three-dimensional printer, is a device that uses digital model files as a basis and applies special wax materials, powdered metals, plastics, or other bondable materials to manufacture three-dimensional objects by printing layers of bondable materials. With the development of technology, 3D printers are evolving towards being lighter, thinner, and having lower power consumption.

[0003] Current-stage 3D printers are used to manufacture products through a technique of constructing objects layer by layer. The principle of a 3D printer is to put data and raw materials into the 3D printer, and the machine will build the product layer by layer according to the program. Among them, in a 3D printer, it usually includes a print head and two parallel and spaced-apart guide shafts, and the print head slides on the guide shafts through a transmission part located on the two guide shafts.

[0004] Generally speaking, setting two guide shafts can enable moving parts such as the print head to move in a direction parallel to the guide shafts, avoiding the situation where a single guide shaft causes the moving part to rotate around the axis unstably. However, in actual production, errors are likely to occur during the assembly or manufacturing process of the two guide shafts, resulting in non-parallelism between the two guide shafts, and problems such as jamming or binding are likely to occur when the moving part slides on the two guide shafts. Summary of the Utility Model

[0005] This application provides a guiding mechanism and a 3D printer. By setting an elastic member in contact with the guiding component, one of the guide shafts in the guiding component can be adjusted through the elastic member to correct the errors caused by assembly and manufacturing, solving problems such as jamming or binding that occur when the transmission part slides on the guiding component. The structure is simple and the operation is convenient.

[0006] To achieve the above object, the embodiments of this application provide the following technical solutions:

[0007] The first aspect of this application provides a guiding mechanism, including:

[0008] A guiding component;

[0009] A transmission part, which is slidably arranged on the guiding component;

[0010] At least one elastic member, the elastic member is in direct or indirect contact with at least part of the guiding component, a groove for placing the elastic member is formed on the transmission member, each elastic member is located in the corresponding groove, and the groove is used to provide axial limitation to the elastic member so that the elastic member is used to adjust the position of the guiding component in the radial direction of the guiding component.

[0011] Based on the above technical solutions, the present application can also be improved as follows.

[0012] In a possible implementation manner, the guiding component includes: a first guiding shaft and a second guiding shaft;

[0013] The first guiding shaft and the second guiding shaft are arranged parallel to each other in the axial direction.

[0014] In a possible implementation manner, the elastic member is fixedly connected to the transmission member;

[0015] The surface of the elastic member facing the guiding component is a curved surface, the curved surface is matched with the outer surface of the guiding component, and the surface of the elastic member facing away from the guiding component abuts against at least part of the inner surface of the transmission member provided with the groove; or,

[0016] The guiding component further includes: a first bearing and a second bearing;

[0017] The first bearing is sleeved on the first guiding shaft, and the second bearing is sleeved on the second guiding shaft;

[0018] The surface of the elastic member facing the guiding component is a curved surface, the curved surface is attached to the outer surface of the first bearing, and the surface of the elastic member facing away from the guiding component abuts against at least part of the inner surface of the transmission member provided with the groove;

[0019] The transmission member is also fixedly connected to the second bearing to slide on the first guiding shaft and the second guiding shaft.

[0020] In a possible implementation manner, the elastic member is an elastic jaw, and each elastic member has a first surface and a second surface.

[0021] In a possible implementation manner, the transmission member includes a front shell and a rear shell;

[0022] The front shell and the rear shell are arranged front and back in the radial direction, and the front shell and the rear shell are fixedly connected by fasteners.

[0023] In a possible implementation manner, a first cavity and a second cavity are formed between the front shell and the rear shell;

[0024] The first bearing is located in the first cavity, and the second bearing is located in the second cavity.

[0025] In a possible implementation, the elastic member is at least partially located in the first cavity and floats to adjust the position of the first bearing, and the surface of the second cavity fits against the outer surface of the second bearing.

[0026] In a possible implementation, the guiding mechanism further includes: two supports;

[0027] The two supports are respectively located at both ends of the first guiding shaft and the second guiding shaft in the axial direction, and each support is provided with a first mounting hole and a second mounting hole, and the first mounting hole and the second mounting hole are arranged vertically in the radial direction;

[0028] Both ends of the first guiding shaft are inserted into the first mounting hole, and both ends of the second guiding shaft are inserted into the second mounting hole, so that the first guiding shaft and the second guiding shaft are fixedly connected to the two supports.

[0029] The second aspect of the embodiments of the present application provides a three-dimensional printer, including a print head assembly and the above-mentioned guiding mechanism;

[0030] The print head assembly is connected to the transmission member of the guiding mechanism.

[0031] In a possible implementation, the three-dimensional printer further includes a housing;

[0032] Both the print head assembly and the guiding mechanism are located on the housing.

[0033] The present application provides a guiding mechanism and a three-dimensional printer. The guiding mechanism includes a guiding component, a transmission member, and at least one elastic member. Among them, the transmission member is slidably arranged on the guiding component. The elastic member is in direct or indirect contact with at least part of the guiding component. A groove for placing the elastic member is provided on the transmission member, and each elastic member is located in the corresponding groove. The groove is used to provide axial limitation for the elastic member, so that the elastic member is used to adjust the position of the guiding component in the radial direction of the guiding component. The three-dimensional printer includes a print head assembly and the above-mentioned guiding mechanism. Among them, the print head assembly is connected to the transmission member of the guiding mechanism. In this way, the present application can make one of the guiding shafts in the guiding component adjust the errors caused by assembly and manufacturing through the elastic member by setting the elastic member in contact with the guiding component, and solves problems such as jamming or jamming when the transmission member slides on the guiding component. The structure is simple and the operation is convenient. Description of the Drawings

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0035] Figure 1 The front view of the guiding mechanism provided by an embodiment of the present application;

[0036] Figure 2 The partial exploded view of the guiding mechanism provided by an embodiment of the present application;

[0037] Figure 3 The structural schematic diagram of the transmission member of the guiding mechanism provided by an embodiment of the present application;

[0038] Figure 4 is Figure 3 The cross-sectional schematic diagram of A-A in

[0039] Figure 5 is Figure 3 The cross-sectional schematic diagram of B-B in

[0040] Figure 6 The partial exploded view of the guiding mechanism provided by an embodiment of the present application.

[0041] Explanation of reference numerals:

[0042] 100 - Guiding mechanism;

[0043] 200 - Guiding component;

[0044] 210 - First guiding shaft; 220 - Second guiding shaft; 230 - First bearing; 240 - Second bearing;

[0045] 300 - Transmission member;

[0046] 310 - Groove; 320 - Front shell; 330 - Rear shell; 340 - First cavity; 350 - Second cavity; 360 - First arc part; 370 - Second arc part;

[0047] 400 - Elastic member;

[0048] 410 - First surface; 420 - Second surface;

[0049] 500 - Support;

[0050] 510 - First mounting hole; 520 - Second mounting hole. Detailed implementation manners

[0051] As described in the background art, in most three-dimensional printers at the present stage, two guide shafts are provided so that the print head can move in a direction parallel to the guide shafts, avoiding the situation where a single guide shaft causes the print head to rotate unstably around the axis. However, in actual production, errors are likely to occur during the assembly and manufacturing processes of the two guide shafts, resulting in non-parallelism between the two guide shafts, and problems such as jamming or stalling are likely to occur when the print head slides on the two guide shafts.

[0052] In view of the above technical problems, an embodiment of the present application provides a guiding mechanism and a three-dimensional printer. The guiding mechanism includes a guiding component, a transmission member, and at least one elastic member. Among them, the transmission member is slidably disposed on the guiding component. The elastic member is in direct or indirect contact with at least a part of the guiding component. A groove for placing the elastic member is formed on the transmission member, and each elastic member is located in the corresponding groove. The groove is used to provide axial limitation for the elastic member so that the elastic member is used to adjust the position of the guiding component in the radial direction of the guiding component. The three-dimensional printer includes a print head assembly and the above-mentioned guiding mechanism. Among them, the print head assembly is connected to the transmission member of the guiding mechanism. In this way, the present application can solve the problems such as jamming or stalling that occur when the transmission member slides on the guiding component by setting the elastic member in contact with the guiding component, so that one of the guide shafts in the guiding component can adjust the errors caused by assembly and manufacturing through the elastic member. The structure is simple and the operation is convenient.

[0053] In order to make the above-mentioned objects, features, and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Without conflict, the following embodiments and the features in the embodiments can be combined with each other. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0054] An embodiment of the present application provides a guiding mechanism and a three-dimensional printer. By setting the elastic member in contact with the guiding component, one of the guide shafts in the guiding component can adjust the errors caused by assembly and manufacturing through the elastic member, solving the problems such as jamming or stalling that occur when the transmission member slides on the guiding component. The structure is simple and the operation is convenient. The following will introduce the specific structures of the guiding mechanism and the three-dimensional printer provided by the embodiments of the present application with reference to the accompanying drawings.

[0055] Refer to Figure 1, in the first aspect of the embodiment of the present application, a guiding mechanism 100 is provided. The guiding mechanism 100 may include a guiding component 200, a transmission member 300, and an elastic member 400. Among them, the transmission member 300 may be located on the guiding component 200, and the transmission member 300 may reciprocally slide on the guiding component 200.

[0056] In a possible implementation manner, the number of the elastic members 400 may be at least one, and the present application does not limit the number of the elastic members 400 herein. In the embodiment of the present application, an example is given with the number of the elastic members 400 being four. Among them, each elastic member 400 may be in direct or indirect contact with at least part of the guiding component 200. In a possible implementation manner, as Figure 2 shown, a groove 310 may be formed on the transmission member 300. It can be understood that the groove 310 can be used for placing the elastic member 400, and the number of the grooves 310 may be the same as that of the elastic members 400. Among them, the elastic member 400 may be fixedly connected to the bottom wall or the side wall of the groove 310.

[0057] In the embodiment of the present application, the number of the grooves 310 may also be four. Among them, as Figure 3 shown, each elastic member 400 may be located in the corresponding groove 310. The groove 310 can be used to provide axial limitation to the elastic member 400, so that the elastic member 400 can be used to adjust the position of the guiding component 200 in the radial direction of the guiding component 200. In this way, the groove 310 can limit the displacement of the elastic member 400 in the axial direction. Since the elastic member 400 has deformation, therefore, the elastic member 400 can have a certain amount of floating displacement in the radial direction through its own deformation, so as to slightly adjust the position of the guiding component 200 by using this floating displacement, and reduce the probability that the transmission member 300 gets stuck or jammed when sliding on the guiding component 200. In a possible implementation manner, the side wall of the groove 310 can provide axial limitation to the elastic member 400. Or, other components connected to the side wall of the groove 310 can also provide axial limitation to the elastic member 400.

[0058] Continue to refer to Figure 1, based on the above embodiments, in a possible implementation, the guiding component 200 can be a shaft body, and one surface of the elastic member 400 facing the guiding component 200 can be a curved surface, so that the curved surface cooperates with the outer surface of the guiding component 200, or cooperates with the outer surface of the component sliding on the surface of the guiding component 200, and further, the deformation amount of the elastic member 400 causes the positions of the guiding component 200 and the transmission member 300 to move relative to each other. Additionally, one surface of the elastic member 400 facing away from the guiding component 200 abuts against at least a part of the inner surface of the groove 310 provided on the transmission member 300, so that the elastic member 400 is limited in the axial direction, and further, the elastic member 400 floats in the radial direction to adjust the position of the guiding component 200. It can be understood that if the elastic member 400 is connected to the bottom wall or side wall of the groove 310, the elastic member 400 is limited in the axial direction.

[0059] Continue to refer to Figure 1 , based on the above embodiments, further, the guiding component 200 can include: a first guiding shaft 210 and a second guiding shaft 220. Wherein, the first guiding shaft 210 and the second guiding shaft 220 are arranged parallel in the axial direction. It can be understood that the purpose of the parallelism of the first guiding shaft 210 and the second guiding shaft 220 is to make them parallel, but due to the influence of assembly and processing errors, there may still be non-parallelism. Among them, the first guiding shaft 210 and the second guiding shaft 220 can be located on the same plane, and the first guiding shaft 210 and the second guiding shaft 220 can also be arranged vertically in the radial direction. In a possible implementation, the first guiding shaft 210 and the second guiding shaft 220 respectively pass through the transmission member 300, and both ends of the first guiding shaft 210 and the second guiding shaft 220 are located outside the transmission member 300, so that the transmission member 300 can slide on the first guiding shaft 210 and the second guiding shaft 220.

[0060] Continue to refer to Figure 2 , based on the above embodiments, the guiding component 200 can further include: a first bearing 230 and a second bearing 240. Wherein, the first bearing 230 can be sleeved on the first guiding shaft 210, and correspondingly, the second bearing 240 can be sleeved on the second guiding shaft 220. It can be understood that the first bearing 230 and the second bearing 240 can also be arranged vertically in the radial direction, and the transmission member 300 can slide on the first guiding shaft 210 and the second guiding shaft 220 through the first bearing 230 and the second bearing 240. Among them, the first bearing 230 and the second bearing 240 are applied between the transmission member 300 and the first guiding shaft 210 and the second guiding shaft 220, which can effectively reduce the friction between the transmission member 300 and the first guiding shaft 210 and the second guiding shaft 220, and at the same time have a certain supporting effect.

[0061] Among them, one side of the elastic member 400 facing the guiding assembly 200 is a curved surface, which is matched with the outer surface of the first bearing 230. One side of the elastic member 400 facing away from the guiding assembly 200 abuts against at least a part of the inner surface of the driving member 300 provided with the groove 310. The driving member 300 is also fixedly connected to the second bearing 240 to slide on the first guiding shaft 210 and the second guiding shaft 220.

[0062] Continue to refer to Figure 2 and Figure 3 , on the basis of the above embodiments, all four elastic members 400 are in contact with the first bearing 230. It can be understood that in the embodiments of the present application, all four elastic members 400 are in contact with the second bearing 240, that is, their positions can be interchanged, and the present application does not limit this here.

[0063] In a possible implementation manner, as Figure 4 and Figure 5 shown, the elastic member 400 can be an elastic claw, and each elastic member 400 can have a first surface 410 and a second surface 420. Among them, the first surface 410 can face the first bearing 230 or the second bearing 240, and the first surface 410 is attached to the outer surface of the first bearing 230 or the second bearing 240. It can be understood that the first surface 410 of the elastic member 400 can be an arc surface, so that the first surface 410 is attached to the outer surface of the first bearing 230 or the second bearing 240. By using the self-deformation of the elastic member 400, the first surface 410 of the elastic member 400 can be an arc surface that matches the diameter of the first bearing 230 or the second bearing 240 of different sizes, so that the first surface 410 of the elastic member 400 is always attached to the outer surface of the first bearing 230 or the second bearing 240.

[0064] Continue to refer to Figure 2 , on the basis of the above embodiments, further, the driving member 300 can include a front shell 320 and a rear shell 330. Among them, the front shell 320 and the rear shell 330 can be arranged front and back in the radial direction, and the front shell 320 and the rear shell 330 can be fixedly connected by fasteners. In a possible implementation manner, the fastener can be other components such as bolts, and the present application does not limit the form of the fastener here. It can be understood that the front shell 320 and the rear shell 330 are pressed against each other and then fixed by fasteners to form a whole.

[0065] Continue to refer to Figure 2 , on the basis of the above embodiments, a first cavity 340 and a second cavity 350 can be formed between the front shell 320 and the rear shell 330. Among them, as Figure 4 and Figure 5As shown, the first bearing 230 can be located in the first cavity 340, while the second bearing 240 can be located in the second cavity 350. In a possible implementation, the front housing 320 and the rear housing 330 can both have a first arc portion 360 and a second arc portion 370 that are oppositely arranged, and the first arc portion 360 and the second arc portion 370 are arranged vertically in the radial direction. Among them, the first arc portion 360 of the front housing 320 is oppositely arranged with the first arc portion 360 of the rear housing 330. Correspondingly, the second arc portion 370 of the front housing 320 is also oppositely arranged with the second arc portion 370 of the rear housing 330. In this way, after the front housing 320 and the rear housing 330 are press-fitted and connected, the first arc portion 360 of the front housing 320 and the first arc portion 360 of the rear housing 330 jointly enclose the first cavity 340, and the second arc portion 370 of the front housing 320 and the second arc portion 370 of the rear housing 330 jointly enclose the second cavity 350. It can be understood that the size of the first cavity 340 is greater than or equal to the diameter size of the first bearing 230, so that the first bearing 230 can be located in the first cavity 340. Correspondingly, the size of the second cavity 350 is greater than or equal to the diameter size of the second bearing 240, so that the second bearing 240 can be located in the second cavity 350.

[0066] Continuing to refer to Figure 2 , on the basis of the above embodiments, in the embodiments of the present application, the front housing 320 and the rear housing 330 can respectively be provided with two grooves 310 arranged in the axial direction, and the two grooves 310 provided on the front housing 320 can correspond to the two grooves 310 provided on the rear housing 330. Two of the four elastic members 400 can be arranged in the two grooves 310 of the front housing 320, and the other two elastic members 400 can be arranged in the two grooves 310 of the rear housing 330. In this way, the four elastic members 400 can respectively be in contact with the outer surface of the first bearing 230 or the second bearing 240, so as to realize the extrusion of the first bearing 230 or the second bearing 240 by using its own elasticity. In a possible implementation, there can be a certain clearance between the inner surface of the first cavity 340 and the first bearing 230. At this time, the elastic member 400 is located in the first cavity 340 through the groove 310, and the position of the first bearing 230 can be adjusted floatingly by using the elasticity of the elastic member 400. Additionally, at this time, the surface of the second cavity 350 is in contact with the outer surface of the second bearing 240, that is, there is no clearance between the second cavity 350 and the second bearing 240, and no floating adjustment is required.

[0067] Alternatively, in another possible implementation, there may be a certain clearance between the inner surface of the second cavity 350 and the second bearing 240. At this time, the elastic member 400 is located in the second cavity 350 through the groove 310, and the position of the second bearing 240 can be adjusted floatingly by utilizing the self-elasticity of the elastic member 400. Additionally, at this time, the surface of the first cavity 340 is in contact with the outer surface of the first bearing 230, that is, there is no clearance between the first cavity 340 and the first bearing 230, and no floating adjustment is required.

[0068] Reference Figure 6 , on the basis of the above embodiments, the guiding mechanism 100 may further include: a support 500. Among them, in one possible implementation, the number of supports 500 may be at least two, and the present application does not limit the number of supports 500 here. In the embodiments of the present application, an example is given with the number of supports 500 being two. The two supports 500 may be respectively located at both ends of the first guiding shaft 210 and the second guiding shaft 220 in the axial direction, and each support 500 may be provided with a first mounting hole 510 and a second mounting hole 520. It can be understood that the first mounting hole 510 and the second mounting hole 520 are arranged up and down in the radial direction, and the first mounting hole 510 corresponds to the first guiding shaft 210, and the second mounting hole 520 corresponds to the second guiding shaft 220. The size of the first mounting hole 510 is greater than or equal to the size of the first guiding shaft 210, and the size of the second mounting hole 520 is greater than or equal to the size of the second guiding shaft 220. In this way, both ends of the first guiding shaft 210 can be inserted into the first mounting hole 510, and both ends of the second guiding shaft 220 can be inserted into the second mounting hole 520, so that the first guiding shaft 210 and the second guiding shaft 220 are fixedly connected to the two supports 500.

[0069] In the second aspect of the embodiments of the present application, a three-dimensional printer (not shown in the figure) is provided. Among them, the three-dimensional printer may include a print head assembly (not shown in the figure) and the above-mentioned guiding mechanism 100. In one possible implementation, the print head assembly may be connected to the transmission member 300 of the guiding mechanism 100. In this way, when the transmission member 300 of the guiding mechanism 100 slides on the guiding assembly 200, the print head assembly can slide on the guiding assembly 200 along with the transmission member 300, so that the print head assembly is in a stable working state.

[0070] On the basis of the above embodiments, the three-dimensional printer may further include a housing (not shown in the figure). Among them, both the print head assembly and the guiding mechanism 100 may be located on the housing. It can be understood that the three-dimensional printer provided by the embodiments of the present application can have the advantages of high flexibility and high production efficiency by adopting the guiding mechanism 100, and the printing speed and quality can also be improved accordingly.

[0071] In the embodiment of the present application, by arranging the elastic member 400 to be in contact with the guiding assembly 200, one of the guiding shafts in the guiding assembly 200 can adjust the errors caused by assembly and manufacturing through the elastic member 400, solving the problems such as jamming or jamming when the transmission member 300 slides on the guiding assembly 200. The structure is simple and the operation is convenient.

[0072] Wherein, the present application further provides a guiding mechanism 100, including:

[0073] A guiding assembly 200;

[0074] A transmission member 300, which is slidably arranged on the guiding assembly 200;

[0075] At least one elastic member 400, the elastic member 400 is in direct or indirect contact with at least part of the guiding assembly 200, a groove 310 for placing the elastic member 400 is formed on the transmission member 300, each elastic member 400 is located in the corresponding groove 310, and the groove 310 is used to provide axial limit for the elastic member 400, so that the elastic member 400 is used to adjust the position of the guiding assembly 200 in the radial direction of the guiding assembly 200.

[0076] Wherein, the guiding assembly 200 includes: a first guiding shaft 210 and a second guiding shaft 220;

[0077] The first guiding shaft 210 and the second guiding shaft 220 are arranged in parallel in the axial direction.

[0078] Wherein, the elastic member 400 is fixedly connected to the transmission member 300;

[0079] The surface of the elastic member 400 facing the guiding assembly 200 is a curved surface, and the curved surface is matched with the outer surface of the guiding assembly 200. The surface of the elastic member 400 facing away from the guiding assembly 200 abuts against at least part of the inner surface of the transmission member 300 provided with the groove 310; or,

[0080] The guiding assembly 200 further includes: a first bearing 230 and a second bearing 240;

[0081] The first bearing 230 is sleeved on the first guiding shaft 210, and the second bearing 240 is sleeved on the second guiding shaft 220;

[0082] The surface of the elastic member 400 facing the guiding assembly 200 is a curved surface, and the curved surface is attached to the outer surface of the first bearing 230. The surface of the elastic member 400 facing away from the guiding assembly 200 abuts against at least part of the inner surface of the transmission member 300 provided with the groove 310;

[0083] The transmission member 300 is also fixedly connected to the second bearing 240 to slide on the first guiding shaft 210 and the second guiding shaft 220.

[0084] Among them, the elastic member 400 is an elastic jaw, and each elastic member 400 has a first surface 410 and a second surface 420.

[0085] Among them, the transmission member 300 includes a front housing 320 and a rear housing 330;

[0086] The front housing 320 and the rear housing 330 are arranged one in front of the other in the radial direction, and the front housing 320 and the rear housing 330 are fixedly connected by fasteners.

[0087] Among them, a first cavity 340 and a second cavity 350 are defined between the front housing 320 and the rear housing 330;

[0088] The first bearing 230 is located in the first cavity 340, and the second bearing 240 is located in the second cavity 350.

[0089] Among them, the elastic member 400 is at least partially located in the first cavity 340 and floatingly adjusts the position of the first bearing 230, and the surface of the second cavity 350 is in contact with the outer surface of the second bearing 240.

[0090] Among them, the guiding mechanism 100 further includes: two supports 500;

[0091] The two supports 500 are respectively located at both ends of the first guiding shaft 210 and the second guiding shaft 220 in the axial direction, and each support 500 is provided with a first mounting hole 510 and a second mounting hole 520, and the first mounting hole 510 and the second mounting hole 520 are arranged one above the other in the radial direction;

[0092] Both ends of the first guiding shaft 210 are inserted into the first mounting hole 510, and both ends of the second guiding shaft 220 are inserted into the second mounting hole 520, so that the first guiding shaft 210 and the second guiding shaft 220 are fixedly connected to the two supports 500.

[0093] This application also provides a 3D printer, including a print head assembly and the aforementioned guiding mechanism 100;

[0094] The print head assembly is connected to the transmission member 300 of the guiding mechanism 100.

[0095] Among them, the 3D printer further includes a housing;

[0096] Both the print head assembly and the guiding mechanism 100 are located on the housing.

[0097] In this specification, the embodiments or implementation manners are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other.

[0098] It should be noted that phrases such as "in specific implementation", "in some embodiments", "in this embodiment", "exemplarily", etc. mentioned in the specification indicate that the described embodiments may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. Moreover, when combining specific features, structures or characteristics with an embodiment, it is within the knowledge scope of those skilled in the art to implement such features, structures or characteristics in combination with other embodiments, whether explicitly or implicitly described.

[0099] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part according to the context, the term "one or more" used in the text can be used to describe any feature, structure or characteristic in a singular sense, or can be used to describe a combination of features, structures or characteristics in a plural sense. Similarly, at least in part according to the context, terms such as "a" or "the" can also be understood to convey a singular usage or a plural usage.

[0100] It should be easily understood that the terms "on", "above", and "over" in this disclosure should be interpreted in the broadest manner, so that "on" not only means "directly on something", but also includes the meaning of "on something" with intermediate features or layers therebetween, and "above" or "over" not only includes the meaning of "above" or "over something", but may also include the meaning of "above" or "over something" with no intermediate features or layers therebetween (i.e., directly on something).

[0101] In addition, for the convenience of description, spatial relative terms such as "below", "beneath", "under", "above", "over" etc. may be used in the text to describe the relationship of one element or feature relative to other elements or features as shown in the figure. Spatial relative terms are intended to encompass different orientations of the device in use or operation other than the orientation shown in the drawings. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatial relative descriptive terms used in the text can be correspondingly interpreted as well.

[0102] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A guiding mechanism, characterized in that, Comprising: A guiding component; A transmission member slidably disposed on the guiding component; At least one elastic member in direct or indirect contact with at least part of the guiding component. A groove for placing the elastic member is formed on the transmission member, and each elastic member is located in the corresponding groove. The groove provides axial limitation for the elastic member so that the elastic member is used to adjust the position of the guiding component in the radial direction of the guiding component.

2. The guiding mechanism according to claim 1, characterized in that, The guiding component includes: a first guiding shaft and a second guiding shaft; The first guiding shaft and the second guiding shaft are arranged parallel to each other in the axial direction.

3. The guiding mechanism according to claim 2, characterized in that, The elastic member is fixedly connected to the transmission member; The surface of the elastic member facing the guiding component is a curved surface, which is matched with the outer surface of the guiding component, and the surface of the elastic member facing away from the guiding component abuts against at least part of the inner surface of the transmission member provided with the groove; or, The guiding component further includes: a first bearing and a second bearing; The first bearing is sleeved on the first guiding shaft, and the second bearing is sleeved on the second guiding shaft; The surface of the elastic member facing the guiding component is a curved surface, which is fitted with the outer surface of the first bearing, and the surface of the elastic member facing away from the guiding component abuts against at least part of the inner surface of the transmission member provided with the groove; The transmission member is further fixedly connected to the second bearing to slide on the first guiding shaft and the second guiding shaft.

4. The guiding mechanism according to claim 3, characterized in that, The elastic member is an elastic jaw, and each elastic member has a first surface and a second surface.

5. The guiding mechanism according to claim 3, characterized in that The transmission member includes a front shell and a rear shell; The front shell and the rear shell are arranged front and rear in the radial direction, and the front shell and the rear shell are fixedly connected by fasteners.

6. The guiding mechanism according to claim 5, wherein A first cavity and a second cavity are defined between the front shell and the rear shell; The first bearing is located in the first cavity, and the second bearing is located in the second cavity.

7. The guiding mechanism according to claim 6, wherein, At least part of the elastic member is located in the first cavity and floats to adjust the position of the first bearing, and the surface of the second cavity is fitted with the outer surface of the second bearing.

8. The guiding mechanism according to any one of claims 2-7, characterized in that, The guiding mechanism further includes: two supports; The two supports are respectively located at both ends of the first guiding shaft and the second guiding shaft in the axial direction, and a first mounting hole and a second mounting hole are formed in each support. The first mounting hole and the second mounting hole are arranged up and down in the radial direction; Both ends of the first guiding shaft are inserted into the first mounting hole, and both ends of the second guiding shaft are inserted into the second mounting hole, so that the first guiding shaft and the second guiding shaft are fixedly connected to the two supports.

9. A three-dimensional printer, characterized in that, Comprising a print head assembly and the guiding mechanism according to any one of claims 1-8; The print head assembly is connected to the transmission member of the guiding mechanism.

10. The three-dimensional printer according to claim 9, wherein The 3D printer further includes a housing; The print head assembly and the guiding mechanism are both located on the housing.

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