CN218020189U - Z-axis transmission device of 3D printer - Google Patents
Z-axis transmission device of 3D printer Download PDFInfo
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- CN218020189U CN218020189U CN202221764981.3U CN202221764981U CN218020189U CN 218020189 U CN218020189 U CN 218020189U CN 202221764981 U CN202221764981 U CN 202221764981U CN 218020189 U CN218020189 U CN 218020189U
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- trapezoidal nut
- fixing piece
- optical axis
- screw rod
- transmission device
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Abstract
The utility model discloses a Z-axis transmission device of a 3D printer, which comprises an optical axis, a screw rod, a fixing piece, a trapezoidal nut and a bearing, wherein the fixing position of the trapezoidal nut is arranged inside the fixing piece, and the fixing piece is also provided with a hole site for passing through the optical axis and the screw rod; the bearing is fixed on the fixing piece, an optical axis is installed in the bearing, the screw rod penetrates through the fixing piece, the trapezoidal nut is movably installed in the fixing piece, and the trapezoidal nut is connected with the screw rod. The utility model discloses a part is less, and does not remove fixedly with the screw, can simplify the production steps, and the production installation of being convenient for, improvement production efficiency that can be fine. The trapezoidal nut is in a plane movable state in the fixing piece, requirements for parts can be reduced, and the trapezoidal nut can automatically move to a position with the minimum resistance to perform transmission when the machine moves. The condition that the motion is not smooth and easy when can reduce trapezoidal lead screw a little crooked, the quality of printing is improved.
Description
The technical field is as follows:
the utility model relates to a 3D prints technical field, especially relates to a 3D printer Z axle transmission.
The background art comprises the following steps:
the 3D printer is an additive manufacturing process, and adopts a machine for manufacturing objects by using plastics or other materials, and uses a computer-controlled extrusion head to melt and extrude thin-band-shaped plastics, and adopts a mode of stacking layer by layer from bottom to top to manufacture the instant usable objects. Because the working mode of the machine is that the machine is piled up layer by layer from bottom to top, the Z-axis transmission of the machine usually adopts a transmission guide mechanism of a trapezoidal screw nut polishing shaft; but because trapezoidal screw rod, nut play power transmission's effect, the optical axis plays the guide effect of motion, and there are x direction and Y direction deviation ladder pole nut and optical axis direction subassembly at the in-process that goes up to descend, use when the deviation is great can make sliding resistance very big, exists the dead phenomenon of card when serious, leads to Z axle motion's mechanical precision to reduce for the printing precision of 3D printer reduces, and product shaping quality reduces.
The common method for fixing the trapezoidal nut at present is that; 1. the trapezoidal nut is directly fixed with the sheet metal part or the machined part to form rigid connection; 2. a spring gasket is arranged between the trapezoidal nut and the mounting screw, and the trapezoidal nut is in a semi-suspension state by enabling the spring gasket to bear a little force. 3. And manufacturing a T-shaped pin to be inserted into the sheet metal part or the machined part, wherein the length of the pin is about 0.1mm greater than the hole depth of the sheet metal part or the machined part, so that the trapezoidal nut is in a suspension state.
The above structure has the following drawbacks:
1. the trapezoidal nut is directly fixed with the sheet metal part or the machining part to form rigid connection, the position deviation between the trapezoidal screw rod and the nut is large due to the tolerance of parts and the accumulation of assembly errors, the resistance during transmission is large, the clamping is obvious, and the noise is large 2. An elastic arrow gasket is placed between the trapezoidal nut and the mounting screw, the trapezoidal nut is in a semi-suspension state by applying a little force to the elastic arrow gasket, and the mounting screw is in a loose state, so that the vibration is generated during the movement of a machine, the phenomenon that the mounting screw is loosened and falls off is easily caused, and the transmission failure is caused. 3. The pin of a T type of preparation inserts sheet metal component or machine and adds the piece, and the length of pin is about 0.1mm than the hole degree of depth of sheet metal component or machine and adds the piece about to make trapezoidal nut become a suspension state, this kind of mode part is more, and the installation is complicated, and the contact surface between the pin of T type and the trapezoidal nut is little, and is wearing and tearing very easily, thereby leads to driven precision to descend.
The utility model has the following contents:
an object of the utility model is to provide a 3D printer Z axle transmission to solve the not enough of prior art.
The utility model discloses implement by following technical scheme: a Z-axis transmission device of a 3D printer comprises an optical axis, a screw rod, a fixing piece, a trapezoidal nut and a bearing, wherein the fixing position of the trapezoidal nut is arranged in the fixing piece, and the fixing piece is also provided with a hole position penetrating through the optical axis and the screw rod; the bearing is fixed on the mounting, install the optical axis in the bearing, the mounting is passed to the lead screw, trapezoidal nut movable mounting is in the mounting, just trapezoidal nut meets with the lead screw, wherein:
the optical axis is fixed at the upper end part and the lower end part of the machine and used for guiding the Z axis of the machine in the up-and-down direction;
the screw rod is connected with the stepping motor and used for transmitting the acting force of the stepping motor to push the Z-axis component to move up and down
The trapezoidal nut is used for transmitting thrust brought by rotation of the screw rod.
Furthermore, the height of the fixing position of the trapezoidal nut is 0.05mm higher than the thickness of the trapezoidal nut, and the size of the fixing position of the trapezoidal nut is 1mm larger than that of the trapezoidal nut.
Furthermore, the fixing piece is made of ABS and glass fiber through die sinking.
Furthermore, the trapezoidal nut is made of brass.
Furthermore, the number of the bearings is two, the two bearings are respectively fixed on the fixing piece in the same axial direction, and the two bearings penetrate through the optical axis.
Furthermore, the optical axis is parallel to the screw rod.
The utility model has the advantages that:
the utility model discloses a part is less, and does not remove fixedly with the screw, can simplify the production steps, and the production installation of being convenient for, improvement production efficiency that can be fine. The trapezoidal nut is in a planar movable state in the fixing piece, so that the requirements on parts can be reduced, and the trapezoidal nut can automatically move to a position with the minimum resistance to perform transmission when the machine moves. The condition that the motion is not smooth and easy when can reduce trapezoidal lead screw a little crooked, the quality of printing is improved.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a specific usage structure of a Z-axis transmission device of a 3D printer according to an embodiment of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
fig. 3 is a sectional top view of a Z-axis transmission device of a 3D printer according to an embodiment of the present invention;
fig. 4 is a vertical section of the fixing member and the matching parts of the Z-axis transmission device of the 3D printer according to the embodiment of the present invention.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, 2, 3, and 4, a Z-axis transmission device of a 3D printer includes an optical axis 1, a screw rod 2, a fixing member 3, a trapezoidal nut 4, and a bearing 5, wherein a fixing position of the trapezoidal nut 4 is arranged inside the fixing member 3, and the fixing member 3 is further provided with a hole site penetrating through the optical axis 1 and the screw rod 2; bearing 5 is fixed on mounting 3, and installation optical axis 1 in the bearing 5, mounting 3 is passed to lead screw 2, and 4 movable mounting of trapezoidal nut are in mounting 3, and trapezoidal nut 4 meets with lead screw 2, wherein:
the optical axis 1 is fixed at the upper end part and the lower end part of the machine and is used for guiding the Z axis of the machine in the up-and-down direction;
the screw rod 2 is connected with the stepping motor and is used for transmitting the acting force of the stepping motor to push the Z-axis component to move up and down;
and the trapezoidal nut 4 is used for transmitting thrust caused by the rotation of the screw rod 2.
Two bearings 5 are respectively fixed on the fixing member 3 in the same axial direction, and the two bearings 5 penetrate through the optical axis 1.
The principle of the utility model is that two bearings 5 are fixed by designing a proper fixing piece 3, so that the bearings keep good concentricity and the resistance generated during movement is reduced; the fixed position of trapezoidal nut 4 is designed, and the parallelism between lead screw 2 and optical axis 1 can be better kept, and the lead screw can move in parallel in mounting 3 to offset tolerance accumulation and assembly errors of parts, and the vertical direction almost has no clearance, and the transmission ratio is higher.
As shown in figure 1, an optical axis 1 is fixed at the upper end part and the lower end part of a machine and is used for guiding the upper direction and the lower direction of a z axis of the machine; the screw rod 2 is used for transmitting acting force generated by the stepping motor and pushing the Z-axis component to move up and down. Mounting 3 is by the fine die sinking preparation of ABS + glass, and inside has trapezoidal nut 4's fixed position, and fixed position highly is 0.05mm higher than trapezoidal nut 4's thickness, and the size is 1mm bigger than trapezoidal nut 4's size, can let trapezoidal nut 4 have certain activity space in the state that its inside department does the translation. In addition, the mounting hole position of the fixed bearing 5 and the hole position of the fixed optical axis 1 are arranged, and the trapezoidal nut 4 is made of brass, has a small friction coefficient and is used for transmitting the thrust brought by the rotation of the screw rod 2; the bearing 5 is fixed to the fixing member 3, and has a small friction coefficient directly with the optical axis 1, thereby enabling the Z-axis member to move up and down smoothly.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A Z-axis transmission device of a 3D printer is characterized by comprising an optical axis (1), a screw rod (2), a fixing piece (3), a trapezoidal nut (4) and a bearing (5), wherein a fixing position of the trapezoidal nut (4) is arranged in the fixing piece (3), and the fixing piece (3) is further provided with a hole position penetrating through the optical axis (1) and the screw rod (2); bearing (5) are fixed on mounting (3), install optical axis (1) in bearing (5), mounting (3) are passed in lead screw (2), trapezoidal nut (4) movable mounting is in mounting (3), just trapezoidal nut (4) meet with lead screw (2), wherein:
the optical axis (1) is fixed at the upper end part and the lower end part of the machine and is used for guiding the Z axis of the machine in the up-and-down direction;
the screw rod (2) is connected with the stepping motor and used for transmitting the acting force of the stepping motor to push the Z shaft part to move up and down
The trapezoidal nut (4) is used for transmitting the thrust force caused by the rotation of the screw rod (2).
2. The Z-axis transmission device of the 3D printer is characterized in that the height of the fixed position of the trapezoidal nut (4) is 0.05mm higher than the thickness of the trapezoidal nut (4), and the fixed position of the trapezoidal nut is 1mm larger than the trapezoidal nut (4).
3. The Z-axis transmission device of the 3D printer according to claim 1, wherein the fixing member (3) is made of ABS + glass fiber mold opening.
4. The Z-axis transmission device of the 3D printer is characterized in that the trapezoidal nut (4) is made of brass.
5. The Z-axis transmission device for the 3D printer according to claim 1, wherein two bearings (5) are fixed on the fixing member (3) in the same axial direction, and the two bearings (5) penetrate through the optical axis (1).
6. The Z-axis transmission device of the 3D printer is characterized in that the optical axis (1) and the lead screw (2) are parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221764981.3U CN218020189U (en) | 2022-07-07 | 2022-07-07 | Z-axis transmission device of 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221764981.3U CN218020189U (en) | 2022-07-07 | 2022-07-07 | Z-axis transmission device of 3D printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218020189U true CN218020189U (en) | 2022-12-13 |
Family
ID=84381979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221764981.3U Active CN218020189U (en) | 2022-07-07 | 2022-07-07 | Z-axis transmission device of 3D printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218020189U (en) |
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2022
- 2022-07-07 CN CN202221764981.3U patent/CN218020189U/en active Active
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