CN218489113U - Lead screw swing adjustment structure and 3D printer - Google Patents

Abstract

The application discloses lead screw swing adjustment structure and 3D printer. The structure includes: the two fixing plates and the screw rod are rotatably connected between the two fixing plates; the screw rod nut is sleeved on the screw rod; the bottom end of the rod piece is fixed on the screw rod nut; the lower elastic piece is sleeved on the rod piece, and the bottom end of the lower elastic piece is connected with the screw rod nut; the motion plate is sleeved on the rod piece, and the bottom of the motion plate is abutted against the top end of the lower elastic piece; the upper elastic piece is sleeved on the rod piece, and the bottom end of the upper elastic piece is abutted against the top of the moving plate; the fixing piece is fixed on the rod piece and abuts against the top end of the upper elastic piece; when the screw rod rotates, the moving plate is driven to move through the screw rod nut, and meanwhile, the swing of the screw rod caused by the fact that the fixed plate and the moving plate are not concentric in installation is offset through the upper elastic piece and the lower elastic piece. The application solves the technical problems of time and labor waste, low economy and high technical dependence degree.

Description

Lead screw swing adjustment structure and 3D printer

Technical Field

The application relates to the field of screw rod transmission, in particular to a screw rod swing adjusting structure and a 3D printer.

Background

Most of motion platforms use screw transmission, and especially, the commonly used Z axis in the XYZ axes of the 3D printer also uses screw transmission.

When the motion platform is installed on the screw rod, the motion platform is difficult to keep concentric with a fixing plate for fixing the screw rod, so that the screw rod can swing in the transmission process. In order to eliminate the lead screw swing caused by the non-concentricity of the moving platform and the fixed plate, the high precision of a material part is required, and the repeated use of a detection meter for measurement and adjustment is needed during installation, so that the time and the labor are wasted, the method is not economical, and the technical dependence degree is very high.

Aiming at the problems of time and labor waste, high economic efficiency and high technical dependence degree in the related technology, an effective solution is not provided at present.

Disclosure of Invention

The main aim at of this application provides a lead screw swing adjustment structure and 3D printer to solve and waste time and energy, also very uneconomic, to the very high problem of technical dependence degree.

In order to achieve the above object, according to one aspect of the present application, there is provided a screw swing adjustment structure.

The lead screw swing adjustment structure according to the present application includes: the two fixing plates and the screw rod are rotatably connected between the two fixing plates; the screw rod nut is sleeved on the screw rod; the bottom end of the rod piece is fixed on the screw rod nut; the lower elastic piece is sleeved on the rod piece, and the bottom end of the lower elastic piece is connected with the screw rod nut; the motion plate is sleeved on the rod piece, and the bottom of the motion plate is abutted against the top end of the lower elastic piece; the upper elastic piece is sleeved on the rod piece, and the bottom end of the upper elastic piece is abutted against the top of the moving plate; the fixing piece is fixed on the rod piece and abuts against the top end of the upper elastic piece; when the screw rod rotates, the moving plate is driven to move through the screw rod nut, and meanwhile, the swing of the screw rod caused by the fact that the fixed plate and the moving plate are not concentric in installation is offset through the upper elastic piece and the lower elastic piece.

Furthermore, slide rails are respectively arranged between the fixed plates and at positions close to the two ends, and the slide rails are movably connected with the moving plate.

Further, the rod piece is a threaded rod, and the fixing piece is a nut matched with the threaded rod.

Further, the lower elastic member includes: the lower spring and the two lower flat gaskets are respectively arranged between the lower spring and the moving plate as well as between the lower spring and the screw rod nut; the upper elastic member includes: the upper spring, and set up two flat gaskets on between said upper spring and movement plate, stationary part respectively.

Furthermore, the number of the rod pieces, the number of the upper elastic pieces, the number of the lower elastic pieces and the number of the fixing pieces are four, and the rod pieces, the upper elastic pieces, the lower elastic pieces and the fixing pieces are respectively wound around the screw rod in equal radian.

Furthermore, the screw rod is rotatably connected to the two fixing plates through rotating shafts arranged at the two ends.

Furthermore, the threaded rod is connected in a threaded hole in a nut of the feed screw nut and penetrates through a through hole in the moving plate.

Furthermore, the lower elastic part and the upper elastic part are special-shaped springs, and the diameters of the special-shaped springs are increased from the middle to the two ends one by one.

Further, the lower elastic member is compressed to a minimum height.

In order to achieve the above object, according to another aspect of the present application, there is provided a 3D printer.

The 3D printer according to the application includes: the screw rod swinging adjusting structure.

In the embodiment of the application, a designed structure is adopted to perform the swing adjustment of the screw rod, and the screw rod is rotatably connected between the two fixing plates through the two fixing plates; the screw rod nut is sleeved on the screw rod; the bottom end of the rod piece is fixed on the screw rod nut; the lower elastic piece is sleeved on the rod piece, and the bottom end of the lower elastic piece is connected with the screw rod nut; the motion plate is sleeved on the rod piece, and the bottom of the motion plate is abutted against the top end of the lower elastic piece; the upper elastic piece is sleeved on the rod piece, and the bottom end of the upper elastic piece is abutted against the top of the moving plate; the fixing piece is fixed on the rod piece and abuts against the top end of the upper elastic piece; when the screw rod rotates, the moving plate is driven to move through the screw rod nut, and meanwhile, the swing of the screw rod caused by the fact that the fixed plate and the moving plate are not concentric in installation is offset through the upper elastic piece and the lower elastic piece; the purpose of using the upper elastic piece, the lower elastic piece, the rod piece and the fixing piece to be matched and adjusted to replace manual measurement and adjustment is achieved, time and labor are saved, economy and practicability are achieved, the technical effect of low technical dependence degree is achieved, and the technical problems of time and labor waste, low economy and very high technical dependence degree are solved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and the description of the exemplary embodiments of the present application are provided for explaining the present application and do not constitute an undue limitation on the present application. In the drawings:

FIG. 1 is a partial schematic view of a lead screw wobble adjustment arrangement according to an embodiment of the application;

fig. 2 is a second partial schematic view of a screw swing adjustment structure according to an embodiment of the present application;

FIG. 3 is a schematic perspective view of a swing adjustment structure according to an embodiment of the present application;

fig. 4 is a schematic structural view of a profiled spring according to an embodiment of the present application.

Reference numerals

1. A fixing plate; 2. a feed screw nut; 3. a rod member; 4. a lower elastic member; 5. a motion plate; 6. an upper elastic member; 7. a fixing member; 8. a slide rail; 9. a shaped spring.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the application herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used in other meanings besides orientation or positional relationship, for example, the term "upper" may also be used in some cases to indicate a certain attaching or connecting relationship. The specific meaning of these terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 4, the present application relates to a screw swing adjustment structure, including: two fixing plates 1; the screw rod fixing device has the functions of fixing the screw rod and installing the screw rod on corresponding equipment; in this embodiment, the fixed plate 1 is a fixed beam, and the lead screw can be mounted on the Z axis of the movement mechanism of the 3D printer through the fixed beam, so that the movement plate 5 can be driven to lift by the lead screw after the movement plate 5 is mounted. The screw rod is rotatably connected between the two fixing plates 1; has the function of converting the rotation of itself into the up-and-down movement of the motion plate 5; preferably, the screw rod is rotatably connected to the two fixing plates 1 through rotating shafts arranged at two ends; the rotation shaft of the screw rod can rotate in the hole of the fixed plate 1 by matching with a driving motor, thereby realizing the lifting of the moving plate 5. The screw rod nut 2 is sleeved on the screw rod; the driving device is matched with the screw rod, converts the rotation of the screw rod into the movement of the screw rod, and accordingly drives the moving plate 5 connected with the screw rod to move up and down. The bottom end of the rod piece 3 is fixed on the screw rod nut 2; the function of connecting the screw nut and the moving plate 5 and arranging the upper elastic piece 6 and the lower elastic piece 4 is achieved; preferably, the rod 3 is a threaded rod, and further, the threaded rod is connected in a threaded hole on a nut of the feed screw nut 2 and penetrates through a through hole on the moving plate 5; use the threaded rod to cooperate with the screw hole to be connected, reach the purpose on the nut of fixing the threaded rod to screw-nut 2, make the top of threaded rod pass the through-hole on the motion board 5 again and lean out, the part of leaning out links up mounting 7 to realize motion board 5 and screw-nut 2's linking, reach the purpose of being connected to screw-nut 2 with motion board 5, guarantee that motion board 5 can normally go up and down. The lower elastic piece 4 is sleeved on the rod piece 3, and the bottom end of the lower elastic piece is connected with the screw rod nut 2; has the function of abutting between the nuts of the feed screw nut 2 of the moving plate 5; so that there is a downward fine adjustment space between the moving plate 5 and the feed screw nut 2. The moving plate 5 is sleeved on the rod piece 3, and the bottom of the moving plate is abutted against the top end of the lower elastic piece 4; has the function of moving up and down under the driving of the screw rod; the upper elastic piece 6 is sleeved on the rod piece 3, and the bottom end of the upper elastic piece abuts against the top of the moving plate 5; has the function of resisting between the moving plate 5 and the fixed part 7; so that there is an upward fine tuning space between the moving plate 5 and the fixing member 7. The fixing piece 7 is fixed on the rod piece 3 and is abutted against the top end of the upper elastic piece 6; has the function of compressing the upper elastic piece 6; so that the upper elastic member 6 cannot be bounced upward; preferably, the fixing piece 7 is a nut matched with the threaded rod; thus, the upper elastic member 6 cooperates with the fixing member 7 to provide a downward elastic restoring force to the moving plate 5 to press the moving plate 5 downward; the moving plate 5 is pressed on the top end of the lower elastic piece 4, and the lower elastic piece 4 is pressed downwards by utilizing the self gravity, so that the lower elastic piece 4 has an upward elastic restoring force, the moving plate 5 is pressed upwards, and the moving plate 5 can be kept in a relatively stable state when the screw rod does not move. When the screw rod moves, due to the non-concentric error between the fixed plate 1 and the moving plate 5, an extra force is applied to the moving plate 5, and the force is under the action of the upper elastic piece 6, the lower elastic piece 4 and the fixing piece 7, so that the moving plate 5 can slightly move on the rod piece 3 to find a position to be concentric with the fixed plate 1, and the swing of the screw rod caused by the non-concentric error between the fixed plate 1 and the moving plate 5 is offset.

From the above description, it can be seen that the present application achieves the following technical effects:

in the embodiment of the application, a designed structure is adopted to perform the swing adjustment of the screw rod, and the screw rod is rotatably connected between the two fixing plates 1 through the two fixing plates 1; the screw rod nut 2 is sleeved on the screw rod; the bottom end of the rod piece 3 is fixed on the screw rod nut 2; the lower elastic piece 4 is sleeved on the rod piece 3, and the bottom end of the lower elastic piece is connected with the feed screw nut 2; the moving plate 5 is sleeved on the rod piece 3, and the bottom of the moving plate abuts against the top end of the lower elastic piece 4; the upper elastic piece 6 is sleeved on the rod piece 3, and the bottom end of the upper elastic piece abuts against the top of the moving plate 5; the fixing piece 7 is fixed on the rod piece 3 and abuts against the top end of the upper elastic piece 6; when the screw rod rotates, the moving plate 5 is driven to move through the screw rod nut 2, and the swing of the screw rod caused by the mounting decentration of the fixed plate 1 and the moving plate 5 is offset through the upper elastic piece 6 and the lower elastic piece 4; the purpose of using upper elastic part 6, lower elastic part 4, rod piece 3 and fixing part 7 to cooperate and adjust to replace manual measurement and adjustment is achieved, time and labor are saved, the device is economical and practical, the technical effect of low technical dependence degree is achieved, and the technical problems of time and labor waste, low economy and high technical dependence degree are solved.

Preferably, slide rails 8 are further respectively disposed between the fixed plates 1 and at positions close to the two ends, and the slide rails 8 are movably connected with the moving plate 5. The sliding rail 8 ensures that the moving plate 5 does not deviate from the rail when lifting, thereby ensuring the stability of operation.

Preferably, the lower elastic member 4 includes: the lower spring and two lower flat gaskets are respectively arranged between the lower spring and the motion plate 5 and between the lower spring and the screw rod nut 2; the upper elastic member 6 includes: an upper spring and two upper flat gaskets respectively arranged between the upper spring and the moving plate 5 and between the upper spring and the fixing piece 7. Can connect in the upper and lower both sides of moving plate 5 through the form of spring cooperation flat gasket, simple structure, fine realization eliminates the decentraction error of moving plate 5 and fixed plate 1 spare.

Preferably, the number of the rod members 3, the number of the upper elastic members 6, the number of the lower elastic members 4 and the number of the fixing members 7 are four, and the four rod members are respectively wound around the screw rod in an equal radian manner. In order to eliminate the non-concentricity error of the moving plate 5 and the fixed plate 1, the four rod members 3, the four upper elastic members 6, the four lower elastic members 4 and the four fixing members 7 are arranged around the screw rod in an equal radian in order to stabilize the moving plate 5. Optionally, the number of the rod members 3, the number of the upper elastic members 6, the number of the lower elastic members 4 and the number of the fixing members 7 may be three, and the rods surround the screw rod at equal radians, so that the stability of the moving plate 5 can be ensured when the non-concentric errors of the moving plate 5 and the fixing plate 1 are eliminated.

Preferably, the lower elastic member 4 and the upper elastic member 6 are shaped springs, and the diameters of the shaped springs are increased from the middle to the two ends one by one. The special-shaped spring 9 adopting the structure can avoid using upper and lower flat gaskets of the spring, and simplifies the structure.

Preferably, the lower elastic member 4 is compressed to a minimum height. In order to ensure the relative stability of the moving plate 5, the moving plate 5 can move upwards only a small displacement amount when slightly moving to eliminate the eccentric error by compressing the lower elastic piece 4 to the minimum height.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a lead screw swing adjustment structure which characterized in that includes: the two fixing plates and the screw rod are rotatably connected between the two fixing plates; the screw rod nut is sleeved on the screw rod; the bottom end of the rod piece is fixed on the screw rod nut; the lower elastic piece is sleeved on the rod piece, and the bottom end of the lower elastic piece is connected with the screw rod nut; the moving plate is sleeved on the rod piece, and the bottom of the moving plate is abutted against the top end of the lower elastic piece; the upper elastic piece is sleeved on the rod piece, and the bottom end of the upper elastic piece is abutted against the top of the moving plate; the fixing piece is fixed on the rod piece and abuts against the top end of the upper elastic piece; when the screw rod rotates, the moving plate is driven to move through the screw rod nut, and meanwhile, the swing of the screw rod caused by the fact that the fixed plate and the moving plate are not concentric in installation is offset through the upper elastic piece and the lower elastic piece.

2. The screw rod swinging adjusting structure according to claim 1, wherein slide rails are respectively disposed between the fixed plates and near the two ends, and the slide rails are movably connected to the moving plate.

3. The lead screw oscillation adjustment structure of claim 1, wherein the rod is a threaded rod and the fixing member is a nut that mates with the threaded rod.

4. The screw swing adjustment structure according to claim 1, wherein the lower elastic member includes: the lower spring and the two lower flat gaskets are respectively arranged between the lower spring and the motion plate as well as between the lower spring and the screw rod nut; the upper elastic member includes: the upper spring, and set up two flat gaskets on between said upper spring and movement plate, stationary part respectively.

5. The screw rod swinging adjustment structure of claim 1, wherein the number of the rod member, the upper elastic member, the lower elastic member and the fixing member is four, and the four rod members, the upper elastic member, the lower elastic member and the fixing member are respectively wound around the screw rod in an equal arc.

6. The screw rod swinging adjustment structure according to claim 1, wherein the screw rod is rotatably connected to the two fixing plates through rotating shafts arranged at both ends.

7. The lead screw wobble adjustment structure of claim 3, wherein the threaded rod is connected in a threaded hole in a nut of the lead screw nut and passes through a through hole in the moving plate.

8. The screw rod swinging adjustment structure according to claim 1, wherein the lower elastic member and the upper elastic member are shaped springs, and the diameter of each shaped spring increases from the middle to both ends.

9. The lead screw oscillation adjustment structure of claim 1 wherein the lower elastic member is compressed to a minimum height.

10. A3D printer, comprising: the lead screw oscillation adjustment structure of any one of claims 1 to 9.

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