CN209937718U

CN209937718U - 3D printer elevating gear and 3D printer

Info

Publication number: CN209937718U
Application number: CN201920723960.9U
Authority: CN
Inventors: 俞涛; 张艺怀; 贺淼; 汪武杰
Original assignee: Shenzhen Saloman Technology Co Ltd
Current assignee: Shenzhen Lingan Technology Co.,Ltd.
Priority date: 2019-05-20
Filing date: 2019-05-20
Publication date: 2020-01-14
Anticipated expiration: 2029-05-20

Abstract

The utility model discloses a 3D printer elevating gear and 3D printer, 3D printer elevating gear includes mounting bracket, actuating mechanism and guiding mechanism, the mounting bracket includes curb plate, bottom plate and roof, actuating mechanism includes motor and motor lead screw, the motor is fixed in one side that the bottom plate deviates from the roof, the bottom plate is seted up first through-hole, the roof is seted up the second through-hole, one end of motor lead screw passes first through-hole and is connected with the motor, the other end passes the second through-hole; the guide mechanism comprises two slide rails and a slide block; the slide rail is fixed on the side plate, and the printing platform mounting seat is provided with a nut seat matched with the motor screw rod and is horizontally and fixedly connected with the slide block; the device also comprises a limit switch, and the limit switch is fixed on the side plate; on the same horizontal plane, motor lead screw and two slide rails are isosceles triangle distribution. The embodiment of the utility model provides a motor lead screw and two slide rails are isosceles triangle and distribute, and the motor lead screw is located isosceles triangle's apex angle position, can improve the stability that print platform removed.

Description

3D printer elevating gear and 3D printer

Technical Field

The utility model relates to a 3D printer technical field especially relates to a 3D printer elevating gear and 3D printer.

Background

A 3D printer, also known as a three-dimensional printer (3DP), is a machine that is an additive manufacturing technique, i.e., a rapid prototyping technique, which is based on a digital model file, and manufactures a three-dimensional object by printing a layer of adhesive material on a layer by layer using an adhesive material such as a special wax material, powdered metal, or plastic. After a layer of material is solidified, the working table is moved up or down by a layer thickness distance, and then a new layer of liquid material is coated on the surface of the original solidified material until a three-dimensional solid model is obtained.

And the lifting device of the 3D printer is used for realizing the upward movement or downward movement of the printing platform. The elevating gear of current 3D printer generally comprises a motor lead screw and a slide rail, and the structure is unstable, when print platform removed, produces virtual position easily, leads to the section bar forming process in, the big scheduling problem of shaping size error appears.

SUMMERY OF THE UTILITY MODEL

In view of the above, the embodiments of the present invention are provided so as to provide a 3D printer lifting device and a 3D printer that overcome the above problems or at least partially solve the above problems.

In order to solve the problems, the embodiment of the utility model discloses a 3D printer lifting device, which comprises a mounting rack, a driving mechanism and a guiding mechanism, wherein the mounting rack comprises a side plate, a bottom plate and a top plate, the side plate is vertically arranged, and the bottom plate and the top plate are parallel and are both vertically connected with the side plate; the driving mechanism comprises a motor and a motor screw rod, and the motor screw rod is vertically arranged and connected with the motor; the motor is fixed on one side, away from the top plate, of the bottom plate, the bottom plate is provided with a first through hole, the top plate is provided with a second through hole, one end of the motor screw rod penetrates through the first through hole to be connected with the motor, and the other end of the motor screw rod penetrates through the second through hole; the guide mechanism comprises two vertically arranged slide rails and a slide block connected with the slide rails in a sliding manner; the slide rail is fixed on the side plate, the printing platform mounting seat is provided with a nut seat matched with a motor screw rod, and the printing platform mounting seat is horizontally and fixedly connected with the slide block; the device also comprises a limit switch, and the limit switch is fixed on the side plate; on the same horizontal plane, motor lead screw and two the slide rail is isosceles triangle and distributes, the motor lead screw is located isosceles triangle's apex angle position.

In a preferred embodiment, the mounting frame further includes a pair of reinforcing plates, the reinforcing plates are connected to the bottom plate, the side plates and the top plate, and the two slide rails are disposed between the two reinforcing plates.

In a preferred embodiment, the side plates, the bottom plate, the top plate and the reinforcing plate of the mounting frame are all 6061 aluminum alloy workpieces.

In a preferred embodiment, the number of the sliding blocks is two, and the sliding blocks are matched with the sliding rails in a one-to-one correspondence manner.

In a preferred embodiment, the sliding blocks and the corresponding sliding rails are connected in a clearance fit manner.

In a preferred embodiment, the slide rail is provided with a protrusion or a groove along the vertical direction, and the slider is provided with a groove or a protrusion matched with the protrusion or the groove.

In a preferred embodiment, a plurality of balls are arranged between the protrusions and the corresponding matching sliding grooves.

In a preferred embodiment, the motor screw is a ball screw, and the nut holder is a ball screw nut holder.

The embodiment of the utility model provides a still disclose a 3D printer, including the 3D printer elevating gear of above-mentioned arbitrary embodiment.

Compared with the prior art, the embodiment of the utility model provides an including following advantage: by arranging the two sliding rails, the nut seat of the printing platform mounting seat is matched with the motor screw rod and is horizontally and fixedly connected with the sliding block, so that the levelness of the printing platform can be ensured; on same horizontal plane, motor lead screw and two slide rails are isosceles triangle and distribute, and the motor lead screw is located isosceles triangle's apex angle position, can improve print platform's stability of removing.

Drawings

Fig. 1 is a schematic structural diagram of a 3D printer lifting device according to an embodiment of the present invention;

fig. 2 is a front view of fig. 1.

10. A motor; 11. a motor lead screw; 20. a slide rail; 21. a slider; 31. a side plate; 32. a base plate; 321. a first through hole; 33. a top plate; 331. a second through hole; 34. a reinforcing plate.

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 embodiments 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 also changed accordingly, and the connection may be a direct connection or an indirect connection.

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 to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the 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.

Referring to fig. 1 and 2, an embodiment of the present invention provides a 3D printer lifting device, including a driving mechanism and a guiding mechanism, where the driving mechanism includes a motor 10 and a motor lead screw 11, and the motor lead screw 11 is vertically disposed and connected to the motor 10; the motor 10 is used for driving the motor screw rod 11 to move, and converting the rotary motion into linear motion. The way of driving the motor screw 11 by the motor 10 includes but is not limited to: the motor screw rod 11 is used as an output shaft of the motor 10, and an external driving nut seat is meshed with the motor screw rod 11 outside the motor 10, so that linear motion is realized; alternatively, a rotor with internal threads is arranged inside the motor 10, and the internal threads of the rotor are meshed with the motor lead screw 11, so that linear motion is realized. It should be noted that, a schematic circuit diagram corresponding to the motor 10 driving the motor screw 11 can be known by those skilled in the art through the above description and with reference to the technologies commonly used in the art, and therefore, the description is omitted.

The guide mechanism comprises two vertically arranged slide rails 20 and a slide block 21 connected with the slide rails 20 in a sliding manner. Specifically, the sliding block 21 and the corresponding sliding rail 20 may be connected in a clearance fit manner, so as to realize the sliding connection between the sliding block 21 and the sliding rail 20. In one embodiment, the number of the sliding blocks 21 is one, and the sliding blocks are connected with the two sliding rails 20 in a sliding manner. In another embodiment, there are two sliding blocks 21, and the two sliding blocks are matched with the sliding rails 20 in a one-to-one correspondence manner. The printing platform mounting seat is provided with a nut seat matched with the motor screw rod 11 and is used for being fixedly connected with a printing platform; the printing platform mounting seat is horizontally and fixedly connected with the sliding block 21. In an embodiment, a plurality of first screw holes are formed in one side of the slider 21 close to the motor screw 11, first through holes corresponding to the first screw holes of the slider 21 are formed in the printing platform mounting base, and the first through holes and the corresponding first screw holes are fixed through bolts so that the printing platform and the slider 21 are fixedly connected. In another embodiment, a plurality of second screw holes are formed in the upper surface of the slider 21, second through holes corresponding to the second screw holes of the slider 21 are formed in the printing platform mounting base, the second through holes and the corresponding second screw holes are fixed through bolts so that the printing platform is fixedly connected with the slider 21, and the slider 21 also plays a role in supporting the printing platform. Specifically, the motor screw 11 may be a ball screw, and the nut seat is a ball screw nut seat correspondingly; the ball screw has the characteristic of higher movement efficiency, so that the electric energy can be saved. On the same horizontal plane, motor lead screw 11 and two slide rail 20 are isosceles triangle and distribute, motor lead screw 11 is located isosceles triangle's apex angle position. This embodiment adopts two slide rails 20, and two slide rails 20 are isosceles triangle with motor lead screw 11 and distribute, when print platform passes through the print platform mount pad and is connected with 3D printer elevating gear, can improve the stability that print platform reciprocated, prevents to produce virtual position, ensures the off-the-shelf quality of printing out.

Further, in this embodiment, in 3D printer elevating gear, the device still includes the mounting bracket, the mounting bracket includes curb plate 31, bottom plate 32 and roof 33, curb plate 31 is vertical to be set up, bottom plate 32 with roof 33 is parallel and all with curb plate 31 is connected perpendicularly, slide rail 20 is fixed in curb plate 31, motor 10 is fixed in bottom plate 32 deviates from one side of roof 33, first through-hole 321 is seted up to bottom plate 32, second through-hole 331 is seted up to roof 33, the one end of motor lead screw 11 is passed first through-hole 321 with motor 10 is connected, the other end passes second through-hole 331. 3D printer elevating gear still includes limit switch, limit switch is fixed in curb plate 31. Specifically, there are two limit switches, the side plate 31 is provided with limit switch mounting portions 311 for fixing the limit switches, one of the limit switch mounting portions 311 is arranged on one side of the side plate 31 close to the bottom plate 32, the other limit switch mounting portion 311 is arranged on one side of the side plate 31 close to the top plate 33, and the two limit switches are vertically arranged; the printing platform can be moved within a specific range through the two limit switches. In this embodiment, the slide rail 20 and the side plate 31 of the mounting bracket are fixed to each other, so that the structural stability of the slide rail 20 can be improved; the bottom plate 32 and the top plate 33 can play a role in stabilizing the motor screw rod 11 and also can play a limiting role in preventing the printing platform from falling off from the motor screw rod 11 in the moving process.

Further, in this embodiment, in the 3D printer lifting device, the mounting bracket further includes a pair of reinforcing plates 34, the reinforcing plates 34 connect the bottom plate 32, the side plate 31 and the top plate 33, and the two slide rails 20 are disposed between the two reinforcing plates 34. Preferably, the side plates 31, the bottom plate 32, the top plate 33 and the reinforcing plate 34 of the mounting frame are all 6061 aluminum alloy workpieces. The 6061 aluminum alloy workpiece has the characteristics of excellent processing performance, excellent welding characteristic and electroplating property, good corrosion resistance, high toughness, no deformation after processing, compact and defect-free material, easy polishing, easy coloring film, excellent oxidation effect and the like. The structural stability of the mounting frame of the embodiment of the application can be further improved by combining the characteristics of the 6061 aluminum alloy machined part. In this embodiment, the reinforcing plate 34 is provided to further improve the overall stability.

Further, in this embodiment, in the 3D printer lifting device, the slide rail 20 is provided with a protrusion or a groove along a vertical direction, and the slider 21 is provided with a groove or a protrusion matching with the protrusion or the groove. The sliding block 21 and the sliding rail 20 of the embodiment are slidably connected in a protrusion and groove matching manner, so that the sliding block 21 and the sliding rail 20 can be prevented from moving relative to each other except in the vertical direction, and the moving stability of the printing platform is improved. Preferably, a plurality of balls are arranged between the protrusions and the corresponding sliding grooves, and the sensitivity and the positioning accuracy of the relative sliding between the sliding block 21 and the sliding rail 20 are improved through the plurality of balls.

The 3D printer lifting device in the embodiment of the utility model is provided with two slide rails, and the nut seat of the printing platform mounting seat is matched with the motor screw rod and is horizontally and fixedly connected with the slider, so that the levelness of the printing platform can be ensured; on same horizontal plane, motor lead screw and two slide rails are isosceles triangle and distribute, and the motor lead screw is located isosceles triangle's apex angle position, can improve print platform's stability of removing.

The embodiment of the utility model provides a still provide a 3D printer, including above-mentioned arbitrary embodiment 3D printer elevating gear. Because 3D printer elevating gear possesses the levelness of ensureing print platform and improves the function of the stability that print platform removed to make the finished product effect that 3D printer printed out better.

The 3D printer lifting device has the same structure and beneficial effects as the 3D printer lifting device in the foregoing embodiment, and is not repeated here.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims

1. The lifting device of the 3D printer is characterized by comprising an installation frame, a driving mechanism and a guiding mechanism, wherein the installation frame comprises side plates, a bottom plate and a top plate, the side plates are vertically arranged, and the bottom plate and the top plate are parallel and are vertically connected with the side plates; the driving mechanism comprises a motor and a motor screw rod, and the motor screw rod is vertically arranged and connected with the motor; the motor is fixed on one side, away from the top plate, of the bottom plate, the bottom plate is provided with a first through hole, the top plate is provided with a second through hole, one end of the motor screw rod penetrates through the first through hole to be connected with the motor, and the other end of the motor screw rod penetrates through the second through hole; the guide mechanism comprises two vertically arranged slide rails and a slide block connected with the slide rails in a sliding manner; the slide rail is fixed on the side plate, the printing platform mounting seat is provided with a nut seat matched with a motor screw rod, and the printing platform mounting seat is horizontally and fixedly connected with the slide block; the device also comprises a limit switch, and the limit switch is fixed on the side plate; on the same horizontal plane, motor lead screw and two the slide rail is isosceles triangle and distributes, the motor lead screw is located isosceles triangle's apex angle position.

2. The 3D printer lifting device according to claim 1, wherein the mounting frame further comprises a pair of reinforcing plates, the reinforcing plates are connected with the bottom plate, the side plates and the top plate, and the two slide rails are arranged between the two reinforcing plates.

3. The 3D printer elevating gear of claim 2, wherein the side plate, the bottom plate, the top plate and the reinforcing plate of the mounting bracket are all 6061 aluminum alloy workpieces.

4. The 3D printer lifting device according to claim 1, wherein the number of the sliding blocks is two and the sliding blocks are matched with the sliding rails in a one-to-one correspondence manner.

5. The 3D printer lifting device according to claim 4, wherein the sliding blocks and the corresponding sliding rails are connected in a clearance fit manner.

6. The 3D printer lifting device according to claim 5, wherein the slide rail is provided with a protrusion or a groove along a vertical direction, and the slider is provided with a groove or a protrusion matching with the protrusion or the groove.

7. The 3D printer lifting device according to claim 6, wherein a plurality of balls are arranged between the protrusions and the corresponding matching sliding grooves.

8. The 3D printer lifting device according to claim 1, wherein the motor screw is a ball screw and the nut seat is a ball screw nut seat.

9. 3D printer characterized in that it comprises a 3D printer lifting device according to any one of claims 1 to 8.