CN217073369U - 3D printer - Google Patents
3D printer Download PDFInfo
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- CN217073369U CN217073369U CN202220406458.7U CN202220406458U CN217073369U CN 217073369 U CN217073369 U CN 217073369U CN 202220406458 U CN202220406458 U CN 202220406458U CN 217073369 U CN217073369 U CN 217073369U
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- groove
- lead screw
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Abstract
The utility model discloses a 3D printer, which comprises a shell, a base, a fixed seat and a driving device; the base is arranged in the shell and comprises a first mounting surface, and a positioning groove is formed in the first mounting surface; the fixing seats are arranged at two ends of the base and comprise connecting parts and positioning parts arranged on the connecting parts, the positioning parts are positioned in the positioning grooves, and the connecting parts are abutted against the first mounting surface; the driving device comprises a driving piece, a screw rod, a nut and a sliding block, wherein two ends of the screw rod are respectively connected with the connecting portion in a rotating mode, the nut is sleeved outside the screw rod and connected onto the sliding block, and the driving piece is used for driving the screw rod to rotate and further driving the sliding block to slide. The utility model discloses the straightness that hangs down that the lead screw both ends can be solved to the 3D printer changes easily and influences the problem of printing quality.
Description
Technical Field
The utility model relates to a 3D prints technical field, in particular to 3D printer.
Background
The three-dimensional printer is also called a 3D printer, the 3D printer is a process for rapid prototyping, a three-dimensional model is manufactured layer by layer in a layer-by-layer stacking mode, the operation process of the three-dimensional printer is similar to that of a traditional printer, only the traditional printer prints ink on paper to form a two-dimensional plane drawing, and the three-dimensional printer realizes layer-by-layer stacking and superposition of materials such as liquid photosensitive resin materials, molten plastic wires and gypsum powder to form a three-dimensional entity in a binder spraying or extruding mode.
The existing pull-up type photocuring 3D printer generally adopts a matching mode of a screw rod, a nut and a slider to realize the reciprocating motion of a printing platform, wherein the screw rod and the slider are fixed on the upper end surface of a guide rail body, and an upper fixing block and a lower fixing block connected with the screw rod are fixed on the left side end surface and the right side end surface of the guide rail body. The fixed block produces the error easily when installing the side end face about the guide rail body for the fixed block at both ends can't keep level and parallel, and because the vibrations of lead screw also can lead to the skew of fixed block when the slider motion, all can lead to the straightness that hangs down at lead screw both ends to change, makes the lead screw appear by the extruded condition at the operation in-process, thereby influences the operation of lead screw, finally influences the printing quality.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a 3D printer aims at solving among the current 3D printer that the straightness that hangs down at lead screw both ends changes easily and influences the problem of printing quality.
In order to achieve the above object, the utility model provides a 3D printer, include:
a housing;
the base is arranged in the shell and comprises a first mounting surface, and a positioning groove is formed in the first mounting surface;
the fixing seats are arranged at two ends of the base and comprise connecting parts and positioning parts arranged on the connecting parts, the positioning parts are positioned in the positioning grooves, and the connecting parts are abutted against the first mounting surface; and
the driving device comprises a driving piece, a lead screw, a nut and a sliding block, wherein two ends of the lead screw are respectively connected with the connecting part in a rotating mode, the nut is sleeved outside the lead screw and connected onto the sliding block, and the driving piece is used for driving the lead screw to rotate and further drives the sliding block to slide.
In one embodiment, the positioning groove extends along the length direction of the base.
In one embodiment, the positioning portion is formed by protruding a middle portion of the connecting portion toward the positioning groove.
In one embodiment, the connecting portion is provided with a mounting hole, and the screw rod is rotatably mounted in the mounting hole.
In one embodiment, the connecting portion is provided with an avoiding groove which is opened upwards, and the avoiding groove is communicated with the mounting hole.
In an embodiment, the first mounting surface is disposed in a planar shape.
In an embodiment, the first mounting surface is provided with a limiting rib located at two sides of the positioning groove, and the limiting rib abuts against the side surface of the connecting portion.
In an embodiment, the driving device further includes a slide rail and a guide block slidably connected to the slide rail, the slide rail is mounted on the first mounting surface and located on two sides of the positioning slot, and the guide block is connected to the slider.
In an embodiment, be equipped with first mounting groove on the guide block, first mounting groove inside wall is equipped with the slip arch, the slide rail both sides are equipped with the spout, when the slide rail inserts in the mounting groove, the protruding butt of slip the spout.
In one embodiment, the device further comprises a printing platform, wherein the printing platform is connected to one end of the sliding block, which faces away from the base
The utility model discloses technical scheme changes the fixing base of installing both sides terminal surface about the base into installing in the first installation face of base through installing originally for can rely on the machining precision of base self to ensure that the center pin of the fixing base at base both ends keeps at same height. Furthermore, a positioning groove is formed in the first installation face, the fixing seat comprises a connecting portion and a positioning portion arranged on the connecting portion, when the fixing seat is installed, the positioning portion only needs to be installed in the positioning groove, the connecting portion abuts against the first installation face, and the installation position of the fixing seat can be determined more easily, so that the fixing seat can be arranged on the first installation face in parallel more easily, and installation errors and installation difficulty of the fixing seat are reduced. Simultaneously, the lateral wall of constant head tank can restrict the removal about the fixing base, the bottom of constant head tank can restrict the fixing base court the removal of base direction not only can reduce the positional deviation of fixing base when the installation, can also weaken the fixing base is in the 3D printer during operation, because of the skew that the lead screw vibrations lead to has guaranteed and has maintained the straightness that hangs down at lead screw both ends.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a 3D printer according to an embodiment of the present invention after a housing is partially removed;
FIG. 2 is a schematic view of the base and drive assembly of FIG. 1;
FIG. 3 is an exploded view of FIG. 2;
FIG. 4 is a cross-sectional view of the fixing base of FIG. 2;
FIG. 5 is a schematic cross-sectional view of the slider of FIG. 2;
FIG. 6 is a schematic structural view of the slider shown in FIG. 1;
fig. 7 is a schematic cross-sectional view of fig. 6.
The reference numbers indicate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
100 | |
| 200 | |
210 | |
| 220 | Locating |
230 | |
| 300 | Fixed |
310 | Positioning |
| 320 | Connecting |
321 | |
| 322 | Dodging |
330 | |
| 400 | |
410 | |
| 420 | |
430 | |
| 431 | |
432 | |
| 440 | |
441 | |
| 450 | |
451 | |
| 452 | |
460 | |
| 500 | Printing platform |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
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.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The existing 3D printer usually adopts a matching mode of a screw rod, a nut and a slider to realize the reciprocating motion of a printing platform, wherein the screw rod and the slider are fixed on the upper end surface of a guide rail body, and upper and lower fixed blocks connected with the screw rod are fixed on the left and right side end surfaces of the guide rail body. The fixed block produces the error easily when installing the side end face about the guide rail body for the fixed block at both ends can't keep parallel, and because the vibrations of lead screw also can lead to the skew of fixed block when the slider motion, all can lead to the straightness that hangs down at lead screw both ends to change, makes the lead screw appear by the extruded condition at the operation in-process, thereby influences the operation of lead screw, finally influences the printing quality.
In order to solve the problem, the utility model provides a 3D printer.
Referring to fig. 1 to 3, in the present embodiment, the 3D printer 10 includes a housing 100, a base 200, a fixing base 300, and a driving device 400. The base 200 is arranged in the shell 100, the base 200 comprises a first mounting surface 210, and a positioning groove 220 is arranged on the first mounting surface 210; the fixing base 300 is disposed at two ends of the base 200, the fixing base 300 includes a connecting portion 320 and a positioning portion 310 disposed on the connecting portion 320, the positioning portion 310 is mounted in the positioning groove 220, and the connecting portion 320 abuts against the first mounting surface 210; the driving device 400 includes a driving member 460, a lead screw 410, a nut 420 and a slider 430, two ends of the lead screw 410 are respectively rotatably connected with the connecting portion 320, and the nut 420 is sleeved outside the lead screw 410 and connected to the slider 430; the driving member 460 is used for driving the lead screw 410 to rotate, so as to drive the sliding block 430 to slide.
The utility model discloses a 3D printer 10 has changed the mounted position and the mounting structure of fixing base 300, will install originally fixing base 300 at the base 200 left and right sides terminal surface change into install in on the first installation face 210 of base 200, make and can rely on the machining precision of base 200 self ensures the center pin of the fixing base 300 at base 200 both ends keeps at same height. Specifically, the positioning groove 220 is formed in the first installation surface 210, the fixing base 300 includes the connecting portion 320 and the positioning portion 310 arranged on the connecting portion 320, when the fixing base 300 is installed, only the positioning portion 310 needs to be installed in the positioning groove 220, and the connecting portion 320 abuts against the first installation surface 210, when the first installation surface 210 is arranged in a planar manner, the installation position of the fixing base 300 can be determined more easily, so that the fixing base 300 can be arranged on the first installation surface 210 in parallel more easily, and the installation error and the installation difficulty of the fixing base 300 are reduced. Meanwhile, the side wall of the positioning groove 220 may limit the fixed base 300 from moving left and right, and the bottom of the positioning groove 220 may limit the fixed base 300 from moving towards the direction of the base 200, so that not only may the position deviation of the fixed base 300 during installation be reduced, but also the deviation of the fixed base 300 caused by the vibration of the screw 410 during the operation of the 3D printer 10 may be weakened. In summary, in the present embodiment, the mounting structure of the fixing base 300 and the base 200 ensures and maintains the perpendicularity of the two ends of the lead screw 410, maintains the normal movement of the sliding block 430 on the lead screw 410, and finally ensures the printing quality of the 3D printer 10.
The positioning grooves 220 may be disposed at two ends of the base 200, at this time, the positioning grooves 220 only position and limit the fixing seat 300, and when the sliding block 430 slides along the screw 410, the bottom surface of the sliding block 430 needs to be higher than the first mounting surface 210.
Referring to fig. 2, different from the above, in an embodiment, the positioning groove 220 extends along the length direction of the base 200, at this time, the positioning groove 220 plays a role of accommodating the sliding block 430 in addition to a role of positioning and limiting the fixing seat 300, and when the sliding block 430 slides along the lead screw 410, the sliding block 430 may partially extend into the positioning groove 220, so that the installation height of the lead screw 410 may be reduced, and the overall product size of the 3D printer 10 may be reduced.
The specific form of the positioning portion 310 connected to the connecting portion 320 may be that the positioning portion 310 is protruded from the connecting portion 320, the entire fixing base 300 is arranged in a step shape, and when the positioning portion 310 is installed in the positioning groove 220, one side of the connecting portion 320 abuts against the first installation surface 210. Preferably, the positioning portion 310 is formed by protruding toward the positioning groove 220 from the middle of the connecting portion 320, the fixing base 300 is integrally T-shaped, when the positioning portion 310 is installed in the positioning groove 220, the two sides of the connecting portion 320 are abutted to the first installation surface 210, which is more favorable for maintaining the stability of the fixing base 300 installed on the base 200.
Referring to fig. 4, when the positioning portion 310 is installed in the positioning groove 220 and the connecting portion 320 abuts against the first installation surface 210, if the screw 410 vibrates to cause the left-right direction deviation or the direction deviation of the fixing base 300 towards the base 200, the side wall of the positioning portion 310 or the connecting portion 320 presses the base 200, which increases the stress at the connection portion between the connecting portion 320 and the positioning portion 310, and the fixing base 300 is easily damaged due to long-term pressing and abrasion. Therefore, in order to solve the above problem, in an embodiment, a deformation groove 330 is formed at the connection portion of the positioning portion 310 and the connection portion 320, and the deformation groove 330 can improve the deformation capability of the positioning portion 310 and the connection portion 320, and reduce the stress applied to the connection portion of the positioning portion 310 and the connection portion 320 when the side wall of the positioning portion 310 or the connection portion 320 presses the base 200.
Referring to fig. 3, the connecting portion 320 is provided with a mounting hole 321, and the screw 410 is inserted into the mounting hole 321 to realize a rotational connection with the connecting portion 320. At this time, the screw 410 needs to be inserted into the mounting hole 321 first, and then the fixing base 300 is mounted on the base 200, which increases the mounting difficulty of the fixing base 300. Therefore, further, in an embodiment, the connection portion 320 is provided with an avoiding groove 322 which is opened upward, the avoiding groove 322 is communicated with the mounting hole 321, the avoiding groove 322 can be simultaneously disposed on two of the fixing seats 300 on two sides of the base 200, and can be disposed on only one of the fixing seats 300. At this time, the fixing base 300 may be fixedly installed on both sides of the base 200, one side of the screw rod 410 is inserted into one of the mounting holes 321 of the fixing base 300, and finally, the other side of the screw rod 410 is inserted into the mounting hole 321 through the avoiding groove 322 of the other fixing base 300, thereby completing the installation of the screw rod 410 and the fixing base 300.
Referring to fig. 3, in an embodiment, to further ensure and maintain the perpendicularity of the two ends of the screw rod 410, the first mounting surface 210 is provided with a limiting rib 230, and the limiting rib 230 is disposed at two sides of the positioning groove 220. When the fixing base 300 is installed, in addition to installing the positioning portion 310 in the positioning groove 220 and making the connecting portion 320 abut against the first installation surface 210, the connecting portion 320 also needs to abut against the end of the limiting rib 230. When the position-limiting ribs 230 are disposed on two sides of the positioning groove 220 in parallel, and the ends of the position-limiting ribs 230 on two sides are aligned, and the connecting portion 320 abuts against the ends of the position-limiting ribs 230, it indicates that the fixing seats 300 on two sides of the base 200 are also in a parallel state, and at this time, the fixing seats 300 can be fixed on the base 200. Meanwhile, when the 3D printer 10 operates, the limiting rib 230 may further limit the movement of the fixing base 300 toward the other end of the fixing base 300, so as to further maintain the perpendicularity of the two ends of the screw rod 410.
Referring to fig. 2, 6 and 7, the driving member 460 is connected to the lead screw 410 in a driving manner, the nut 420 is sleeved on the periphery of the lead screw 410 and is disposed on the sliding block 430, and the nut 420 and the lead screw 410 are connected in a matching manner to convert the rotation of the lead screw 410 into the linear motion of the sliding block 430. Specifically, the sliding block 430 is provided with a groove 431 and a second mounting groove 432 which are coaxially arranged, the nut 420 is mounted in the second mounting groove 432, and the lead screw 410 passes through the groove 431 and the second mounting groove 432. Wherein the inner diameter of the groove 431 is smaller than the inner diameter of the second mounting groove 432, and when the nut 420 is inserted into the second mounting groove 432, the nut 420 abuts against the bottom of the second mounting groove 432.
Referring to fig. 1, the 3D printer 10 further includes a printing platform 500, and the final purpose of the driving component is to drive the printing platform 500 to move, so that the desired three-dimensional entity is printed by the printing platform 500. Specifically, the printing platform 500 is connected to one end of the sliding block 430, which faces away from the base 200, corresponding bolt holes are preset in the printing platform 500 and the base 200, and after the bolt holes in the printing platform 500 are aligned with the bolt holes in the base 200, the printing platform 500 and the base 200 can be fixed together by bolts.
The sliding block 430 drives the printing platform 500 to move along the screw rod 410, and if the sliding block 430 is guided and supported only by the screw rod 410, the sliding block 430 and the printing platform 500 shake up and down relative to the screw rod 410 easily, so that the printing quality of the 3D printer 10 is affected.
Referring to fig. 2, fig. 3 and fig. 5, in view of this, in an embodiment, the driving device 400 further includes a sliding rail 440 and a guiding block 450, the sliding rail 440 is mounted on the first mounting surface 210 and is disposed at two sides of the positioning slot 220, the guiding block 450 is connected to the sliding block 430, and the guiding block 450 is slidably connected to the sliding rail 440. The guide block 450 is connected to the sliding block 430, and the sliding block 430 drives the guide block 450 to slide along the sliding rail 440 while moving along the lead screw 410. The sliding block 430 and the guide block 450 may be manufactured as a whole, or the sliding block 430 and the guide block 450 may be fixedly connected together by bolts or the like after the sliding block 430 and the guide block 450 are manufactured separately, so that the sliding block 430 and the guide block 450 form a whole. The guide blocks 450 are installed on two sides of the groove 431, because the sliding block 430 and the guide blocks 450 are an integral body, the sliding of the guide blocks 450 along the sliding rail 440 can be regarded as the sliding of the sliding block 430 along the sliding rail 440, the sliding rail 440 guides the movement of the sliding block 430, and simultaneously the sliding rail 440 and the guide blocks 450 support the left side and the right side of the sliding block 430, so that the up-and-down shaking of the sliding block 430 and the printing platform 500 relative to the lead screw 410 is avoided, and the stability of the movement of the sliding block 430 along the lead screw 410 is enhanced.
Specifically, a first mounting groove 451 is formed in the guide block 450, a sliding protrusion 452 is formed on the inner side wall of the first mounting groove 451, sliding grooves 441 are formed in two sides of the sliding rail 440, and when the sliding rail 440 is inserted into the first mounting groove 451, the sliding protrusion 452 abuts against the sliding grooves 441. When the guide block 450 and the slide rail 440 are mounted, the slide protrusion 452 is aligned with the slide groove 441, and the slide rail 440 is inserted into the first mounting groove 451, so that the guide block 450 and the slide rail 440 can be slidably connected.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A3D printer, comprising:
a housing;
the base is arranged in the shell and comprises a first mounting surface, and a positioning groove is formed in the first mounting surface;
the fixing seats are arranged at two ends of the base and comprise connecting parts and positioning parts arranged on the connecting parts, the positioning parts are positioned in the positioning grooves, and the connecting parts are abutted against the first mounting surface; and
the driving device comprises a driving piece, a lead screw, a nut and a sliding block, wherein two ends of the lead screw are respectively connected with the connecting part in a rotating mode, the nut is sleeved outside the lead screw and connected onto the sliding block, and the driving piece is used for driving the lead screw to rotate and further drives the sliding block to slide.
2. The 3D printer of claim 1, wherein the detent extends along a length of the base.
3. The 3D printer of claim 1, wherein the positioning portion is formed by protruding a middle portion of the connecting portion toward the positioning groove.
4. The 3D printer of claim 1, wherein the connecting portion has a mounting hole, and the lead screw is rotatably mounted in the mounting hole.
5. The 3D printer according to claim 4, wherein an avoiding groove which is opened upward is provided on the connecting portion, and the avoiding groove communicates with the mounting hole.
6. The 3D printer of claim 1, wherein the first mounting surface is planar.
7. The 3D printer according to any one of claims 1 to 6, wherein the first mounting surface is provided with a limiting rib located on both sides of the positioning groove, and the limiting rib abuts against the side surface of the connecting portion.
8. The 3D printer of claim 7, wherein the driving device further comprises a slide rail and a guide block slidably connected to the slide rail, the slide rail is mounted on the first mounting surface and located on both sides of the positioning groove, and the guide block is connected to the slider.
9. The 3D printer according to claim 8, wherein the guide block is provided with a first mounting groove, the inner side wall of the first mounting groove is provided with a sliding protrusion, sliding grooves are formed on two sides of the sliding rail, and when the sliding rail is inserted into the mounting groove, the sliding protrusion abuts against the sliding grooves.
10. The 3D printer of any one of claims 1 to 6, further comprising a printing platform connected to an end of the slider facing away from the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220406458.7U CN217073369U (en) | 2022-02-25 | 2022-02-25 | 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220406458.7U CN217073369U (en) | 2022-02-25 | 2022-02-25 | 3D printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217073369U true CN217073369U (en) | 2022-07-29 |
Family
ID=82545045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220406458.7U Active CN217073369U (en) | 2022-02-25 | 2022-02-25 | 3D printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217073369U (en) |
-
2022
- 2022-02-25 CN CN202220406458.7U patent/CN217073369U/en active Active
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