CN206326130U - A kind of accurate compact 3D printer powder supplying mechanism - Google Patents
A kind of accurate compact 3D printer powder supplying mechanism Download PDFInfo
- Publication number
- CN206326130U CN206326130U CN201621167724.6U CN201621167724U CN206326130U CN 206326130 U CN206326130 U CN 206326130U CN 201621167724 U CN201621167724 U CN 201621167724U CN 206326130 U CN206326130 U CN 206326130U
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- splined shaft
- splined
- cylinder body
- screw rod
- lower cylinder
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Abstract
Support member is provided with above a kind of accurate compact 3D printer powder supplying mechanism, including lower cylinder body, splined member, screw mandrel and motor, the lower cylinder body；The splined member includes splined shaft and spline housing, and the spline housing is fixed on the bottom surface of the support member, the insertion spline housing that the splined shaft may be axially movable, and the lower cylinder body is stretched out in one end of the splined shaft；The screw mandrel includes screw rod and feed screw nut, the feed screw nut is located in the lower cylinder body, and the feed screw nut is fixed on the bottom of the splined shaft, and the screw rod is threadedly coupled with the feed screw nut, the screw rod is stretched into the splined shaft, and the screw rod is connected with the servomotor.The utility model passes through the connection of screw mandrel and splined member, and transmission therebetween.So that powder supplying mechanism has higher precision of rectilinear motion, the transmission accuracy demand of 3D printer is met.In addition, screw rod is stretched into splined member, have the advantages that the arrangement space of drive mechanism is small.
Description
Technical field
The utility model is related to printer powder supplying mechanism technical field, more particularly to a kind of accurate compact 3D printer
Powder supplying mechanism.
Background technology
3D printer is also known as three-dimensional printer, is a kind of machine of a kind of accumulation manufacturing technology, i.e. RP technique.It
With special wax material, powdery metal or plastics etc. can jointing material, three-dimensional is manufactured by printing jointing material from level to level
Object.3D printer generally drives the kind of drive for coordinating guide rail slide block in print procedure using screw mandrel.This class formation is needed
A series of guide rail and slide block mechanism are installed, it is adaptable to large-scale equipment, possess enough spaces to set drive mechanism.
Therefore, the drive mechanism that some sizes are small, insufficient space equipment is difficult with screw mandrel, guide rail is also caused.
Chinese Patent Application No. discloses a kind of motion of 3D printer, including mounting seat for 201620147025.9
And be arranged on X-axis mobile device, Y-axis mobile device, Z axis mobile device.Include fixed seat, screw mandrel, with it is described
Transmission nut that screw mandrel is engaged, the axis of guide being be arranged in parallel with the screw mandrel, line slideway, the cunning being engaged with line slideway
Block and support frame.It can be seen that although the powder supplying mechanism in this document is able to ensure that the linear motion essence of printhead and print platform
Degree, but it sets the line slideway, sliding block etc. to need larger space so that application apparatus be subject to many limitations.
Utility model content
The purpose of this utility model is that the shortcoming for overcoming prior art is supplied there is provided a kind of accurate compact 3D printer
Powder mechanism.
The subject matter of solution is that existing printer powder supplying mechanism causes powder supplying mechanism to ensure precision of rectilinear motion
Complex structure, it is bulky the problem of.
In order to solve the above technical problems, the utility model employs following technical measures：
A kind of accurate compact 3D printer powder supplying mechanism, including lower cylinder body, splined member, screw mandrel and motor, it is described
Support member is provided with above lower cylinder body, the bottom surface of the support member is plane；The splined member includes splined shaft and spline housing, institute
State the bottom surface that spline housing is fixed on the support member, the insertion spline housing that the splined shaft may be axially movable, the flower
The lower cylinder body is stretched out in one end of key axle；The screw mandrel includes screw rod and feed screw nut, and the feed screw nut is located at the lower cylinder
In vivo, the feed screw nut is fixed on the bottom of the splined shaft, and the screw rod is threadedly coupled with the feed screw nut, the spiral shell
Bar is stretched into the splined shaft, the screw rod and the motor connection.
The utility model can also be further perfect by following technical measures：
As a further improvement, the plane perpendicular of the relatively described lower cylinder body of the spline housing is set.
As a further improvement, being provided with through hole in the splined shaft, the screw rod stretched into the through hole, the screw rod with
The splined shaft is coaxial.
As a further improvement, the feed screw nut includes fixed part and same axle portion, the fixed part and the splined shaft
It is fixedly connected, the same axle portion is stretched into the through hole, the same axle portion is connected provided with screwed hole with the screw rod.
As a further improvement, the splined member uses ball spline component, the top of the splined shaft is provided with work
Platform, the workbench is fixed on the splined shaft by fixture, and y-type seal ring is arranged with the fixture.
As a further improvement, the spline housing includes connecting portion and guide part, the connecting portion and the support member
Bottom surface is fixedly connected, and the guide part stretches out the lower cylinder body.
As a further improvement, also including shaft coupling, the rotating shaft of the motor is connected by shaft coupling with the screw rod.
As a further improvement, the lower cylinder body bottom, which is offered, is provided with plane bearing, institute in connecting hole, the connecting hole
The rotating shaft for stating motor is connected through the plane bearing with the shaft coupling.
As a further improvement, also including electromagnetic switch, the scope for controlling the splined shaft movement, the electromagnetism is opened
Pass includes metalwork and induction pieces, and the bottom surface of the feed screw nut is provided with bottom and top in metalwork, the lower cylinder body
She You not induction pieces.
Compared with prior art, the utility model has advantages below：
1st, because splined member has the characteristic that the high-precision longitudinal axis is slided, while screw mandrel also has high-precision transmission special
Property.Therefore, by the connection of screw mandrel and splined member, and transmission therebetween.So that powder supplying mechanism has higher straight line
Kinematic accuracy, meets the transmission accuracy demand of 3D printer.In addition, screw rod is stretched into splined member, this annexation is big
The big arrangement space for reducing drive mechanism so that the powder supplying mechanism that screw mandrel is constituted with splined member can be applied to some spaces
In the small equipment of small, size.
2nd, the plane perpendicular of the relatively described support member of the spline housing is set so that the spline being coaxially disposed with spline housing
The plane perpendicular setting of axle, also relative support.Thus it is guaranteed that the vertical precision of splined shaft so that splined shaft is transported vertically
Dynamic vertical range reaches design requirement.
Brief description of the drawings
Accompanying drawing 1 is the schematic perspective view of the accurate compact 3D printer powder supplying mechanism of the utility model；
Accompanying drawing 2 is the main sectional view of compact 3D printer powder supplying mechanism accurate shown in accompanying drawing 1；
Accompanying drawing 3 is that the solid of splined member and screw mandrel in compact 3D printer powder supplying mechanism accurate shown in accompanying drawing 1 is shown
It is intended to；
Accompanying drawing 4 is the schematic perspective view of feed screw nut in compact 3D printer powder supplying mechanism accurate shown in accompanying drawing 2.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
The problem of the utility model main solution is to change the drive mechanism that existing screw mandrel coordinates with guide rail, is simplified
Drive mechanism and diminution powder supplying mechanism volume.Certainly on the basis of solving the problems, such as, also need to ensure the linear motion of powder supplying mechanism
Precision, can be applied in 3D printer equipment.Wherein, the characteristics of being molded according to metal 3D printer, it is desirable to each feeding
Distance be 0.02mm, repetitive error is in below 0.005mm, therefore driving member be connected with workbench must be with higher straight
The range accuracy of line motion, and with controllability height, stable movement.
Fig. 1 and Fig. 2 are refer to, a kind of accurate compact 3D printer powder supplying mechanism includes lower cylinder body 10, splined member
50 and screw mandrel 40, accommodating cavity 13 is provided with the lower cylinder body 10, and the splined member 50 is located at the accommodating cavity 13 with screw mandrel 40
It is interior.The top of lower cylinder body 10 is provided with support member 30, and the bottom surface 31 of the support member is plane, is follow-up splined member 50
Setting is prepared.Wherein, the support member 30 is in hollow housing structure, facilitates the component of equipment to set.
Fig. 2 is refer to, the splined member 50 includes splined shaft 52 and spline housing 51, and the spline housing 51 is fixed on described
The bottom surface 31 of support member.The insertion spline housing 51 that the splined shaft 52 may be axially movable, one end of the splined shaft 52
Stretch out the lower cylinder body 10.By cleverly using splined member 50, the effect driving member of splined shaft 52, and matched spline
Set 51 plays guide effect, eliminates big volume, baroque guide rail, the structure of sliding block.
Fig. 2 is refer to, the screw mandrel 40 includes screw rod 42 and feed screw nut 41, and the feed screw nut 41 is located at the lower cylinder
In body 10, the feed screw nut 41 is fixed on the bottom of the splined shaft 52, the screw rod 42 and the screw thread of feed screw nut 41
Connection, the screw rod 42 is stretched into the splined shaft 52, and the screw rod 42 is connected with the motor 20.By feed screw nut 41 and flower
Key axle 52 is fixedly connected so that screw mandrel 40 can drive the linear motion of splined shaft 52, range accuracy with linear motion it is high and
The good advantage of transmission stability.
Because splined member 50 has the characteristic that the high-precision longitudinal axis is slided, while screw mandrel 40 also has high-precision transmission
Characteristic.Therefore, the connection of screw mandrel 40 and splined member 50, and transmission therebetween are passed through.So that powder supplying mechanism have compared with
High precision of rectilinear motion, meets the transmission accuracy demand of 3D printer.In addition, screw rod 42 is stretched into splined member 50, it is this
Annexation greatly reduces the arrangement space of drive mechanism so that the powder supplying mechanism that screw mandrel 40 is constituted with splined member 50 can
Applied in the equipment that some spaces are small, size is small.
It refer to Fig. 2, it is preferred that the plane perpendicular of the relatively described lower cylinder body 10 of the spline housing 51 is set.So that with flower
Key covers 51 splined shafts 52 being coaxially disposed, and also the bottom surface 31 of relative support is vertically arranged.Thus it is guaranteed that splined shaft 52 is vertical
Straight precision so that the vertical range of splined shaft 52 reaches design requirement.
It refer to and through hole 53 is provided with Fig. 2, the splined shaft 52, the screw rod 42 is stretched into the through hole 53, the spiral shell
Bar 42 and the splined shaft 52 are coaxial so that the transmission of the screw mandrel 40 does not interfere with the vertical precision of the splined shaft 52, from
And ensure the range accuracy that the splined shaft 52 moves along a straight line.
Refer to Fig. 2 and Fig. 4, the feed screw nut 41 includes fixed part 411 and with axle portion 412, the fixed part 411 with
The splined shaft 52 is fixedly connected, and the same axle portion 412 is stretched into the through hole 53, and the same axle portion 412 is provided with screwed hole 413
It is connected with the screw rod 42.The same axle portion 412 is stretched into the through hole 53, the relatively described flower of the screw rod 42 is prevented effectively from
The deflection of key axle 52 so that the screw rod 42 is coaxial with the splined shaft 52 in the presence of same axle portion 412.
Fig. 3 is refer to, the splined member 50 uses ball spline, with rotary motion with being slided along y direction, energy
It is enough to be connected to form powder supplying mechanism with the screw mandrel 40, there is structure simplification, stable drive, high precision.The spline housing
51 include connecting portion 511 and guide part 512, and the connecting portion 511 is fixedly connected with the bottom surface 31 of the support member, described to be oriented to
The lower cylinder body 10 is stretched out in portion 512.
Fig. 3 is refer to, the top of the splined shaft 52 is provided with workbench 70, and the workbench 70 is fixed by fixture 32
On the splined shaft 52.Y-type seal ring 33 is arranged with the fixture 32, prevents that metal dust etc. from falling into powder supplying mechanism
It is interior.
Fig. 2 and Fig. 3 are refer to, also including shaft coupling 80, the rotating shaft of the motor 20 passes through shaft coupling 80 and the screw rod
42 connections.Motor 20 is enabled smoothly to drive screw rod 42 to rotate by shaft coupling 80.The bottom of lower cylinder body 10 is offered
Plane bearing 12 is provided with connecting hole 11, the connecting hole 11, the rotating shaft of the motor 20 passes through the plane bearing 12 and institute
Shaft coupling 80 is stated to connect.The plane bearing 12 can effectively protect the rotating shaft of the motor 20, extend the use longevity of motor 20
Life.
Fig. 3 is refer to, also including electromagnetic switch 60, for the scope for controlling the splined shaft 52 to move, the electromagnetism is opened
Closing 60 includes metalwork 61 and induction pieces 62, and the bottom surface of the feed screw nut 41 is provided with metalwork 61, the lower cylinder body 10
Bottom is respectively equipped with induction pieces 62 with top.The upper limit and lower limit are set with respectively in the moving process of the splined shaft 52, it is described
Induction pieces 62 are respectively used to control the mobile upper limit and mobile lower limit of the splined shaft 52.
A kind of drive method, using above-mentioned powder supplying mechanism, including controller, the controller is connected with powder supplying mechanism,
Comprise the following steps：
S1, workbench 70 is fixedly connected with the top of the splined shaft 52；
S2, starts motor 20 and controller, and the motor 20 drives the screw mandrel 40 to rotate；
S3, axial movement of the feed screw nut 41 along screw mandrel 40, the splined shaft 52 is moved together with feed screw nut 41；
S4, the workbench 70 is moved up and down under the drive of the splined shaft 52 along accommodating cavity 13.
Wherein, in step 4, when the splined shaft 52 is moved to the upper limit or lower limit, the electromagnetic switch 60 will work,
The induction pieces 62 are sensed after metalwork 61, connect controller so that controller controls the motor 20 to stop operating.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modifications, equivalent substitutions and improvements done etc. should be included in the utility model
Within the scope of protection.
Claims (9)
1. a kind of accurate compact 3D printer powder supplying mechanism, it is characterised in that：Including lower cylinder body, splined member, screw mandrel and
Support member is provided with above motor, the lower cylinder body, the bottom surface of the support member is plane；The splined member include splined shaft and
Spline housing, the spline housing is fixed on the bottom surface of the support member, the insertion spline that the splined shaft may be axially movable
The lower cylinder body is stretched out in set, one end of the splined shaft；The screw mandrel includes screw rod and feed screw nut, and the feed screw nut is located at
In the lower cylinder body, the feed screw nut is fixed on the bottom of the splined shaft, and the screw rod connects with feed screw nut's screw thread
Connect, the screw rod is stretched into the splined shaft, the screw rod and the motor connection.
2. accurate compact 3D printer powder supplying mechanism according to claim 1, it is characterised in that the spline housing phase
The plane perpendicular of the lower cylinder body is set.
3. accurate compact 3D printer powder supplying mechanism according to claim 1, it is characterised in that in the splined shaft
Provided with through hole, the screw rod is stretched into the through hole, and the screw rod and the splined shaft are coaxial.
4. accurate compact 3D printer powder supplying mechanism according to claim 3, it is characterised in that the feed screw nut
Including fixed part and same axle portion, the fixed part is fixedly connected with the splined shaft, and the same axle portion is stretched into the through hole, institute
Same axle portion is stated to be connected with the screw rod provided with screwed hole.
5. accurate compact 3D printer powder supplying mechanism according to claim 1, it is characterised in that the splined member
Using ball spline component, the top of the splined shaft is provided with workbench, and the workbench is fixed on the flower by fixture
On key axle, y-type seal ring is arranged with the fixture.
6. accurate compact 3D printer powder supplying mechanism according to claim 1, it is characterised in that the spline housing bag
Connecting portion and guide part are included, the connecting portion is fixedly connected with the bottom surface of the support member, the guide part stretches out the lower cylinder
Body.
7. accurate compact 3D printer powder supplying mechanism according to claim 1, it is characterised in that also including shaft coupling
Device, the rotating shaft of the motor is connected by shaft coupling with the screw rod.
8. accurate compact 3D printer powder supplying mechanism according to claim 7, it is characterised in that the lower cylinder body bottom
Portion offers connecting hole, is provided with plane bearing in the connecting hole, the rotating shaft of the motor through the plane bearing with it is described
Shaft coupling is connected.
9. accurate compact 3D printer powder supplying mechanism according to claim 1, it is characterised in that also opened including electromagnetism
Close, the scope for controlling the splined shaft movement, the electromagnetic switch includes metalwork and induction pieces, the feed screw nut's
The bottom that bottom surface is provided with metalwork, the lower cylinder body is respectively equipped with induction pieces with top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621167724.6U CN206326130U (en) | 2016-10-26 | 2016-10-26 | A kind of accurate compact 3D printer powder supplying mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621167724.6U CN206326130U (en) | 2016-10-26 | 2016-10-26 | A kind of accurate compact 3D printer powder supplying mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206326130U true CN206326130U (en) | 2017-07-14 |
Family
ID=59287278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621167724.6U Active CN206326130U (en) | 2016-10-26 | 2016-10-26 | A kind of accurate compact 3D printer powder supplying mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN206326130U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623920A (en) * | 2016-10-26 | 2017-05-10 | 厦门理工学院 | Precise compact type 3D printer powder supply mechanism and transmission method |
| CN107498051A (en) * | 2017-09-21 | 2017-12-22 | 四川天府珞埔三维科技有限公司 | A kind of feed cylinder powder isolating device for precinct laser fusion |
| CN107876767A (en) * | 2017-11-27 | 2018-04-06 | 安徽拓宝增材制造科技有限公司 | A kind of selective laser sintering and moulding device |
-
2016
- 2016-10-26 CN CN201621167724.6U patent/CN206326130U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623920A (en) * | 2016-10-26 | 2017-05-10 | 厦门理工学院 | Precise compact type 3D printer powder supply mechanism and transmission method |
| CN106623920B (en) * | 2016-10-26 | 2019-08-13 | 厦门理工学院 | A kind of the compact 3D printer powder supplying mechanism and drive method of precision |
| CN107498051A (en) * | 2017-09-21 | 2017-12-22 | 四川天府珞埔三维科技有限公司 | A kind of feed cylinder powder isolating device for precinct laser fusion |
| CN107876767A (en) * | 2017-11-27 | 2018-04-06 | 安徽拓宝增材制造科技有限公司 | A kind of selective laser sintering and moulding device |
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