CN114700503A - Positioning and lifting device and additive manufacturing equipment - Google Patents
Positioning and lifting device and additive manufacturing equipment Download PDFInfo
- Publication number
- CN114700503A CN114700503A CN202210303811.3A CN202210303811A CN114700503A CN 114700503 A CN114700503 A CN 114700503A CN 202210303811 A CN202210303811 A CN 202210303811A CN 114700503 A CN114700503 A CN 114700503A
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- positioning
- lifting
- lifting device
- bottom plate
- boss
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/30—Platforms or substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/10—Formation of a green body
- B22F10/14—Formation of a green body by jetting of binder onto a bed of metal powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/22—Driving means
- B22F12/222—Driving means for motion along a direction orthogonal to the plane of a layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/141—Processes of additive manufacturing using only solid materials
- B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/165—Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/227—Driving means
- B29C64/232—Driving means for motion along the axis orthogonal to the plane of a layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/245—Platforms or substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
Abstract
A positioning and lifting device and additive manufacturing equipment belong to the field of mechanical design and are used for solving the problems of complex equipment structure and high manufacturing cost caused by pneumatic and electric reciprocating motion; positioning mechanism includes lifting member, setting element, retaining member, lifting member be equipped with the boss that work box movable bottom plate connects, the setting element is for setting up lifting member with the flat board of one side that lifting mechanism links to each other is provided with the setting element lifting member still is equipped with a plurality of through-holes in the region, be equipped with the retaining member in the through-hole. The mechanical close contact mode is adopted to replace the matching modes of pneumatics, electromotion and the like, and the design difficulty, the manufacturing difficulty, the assembly difficulty and the use difficulty are simplified.
Description
Technical Field
The invention relates to the technical field of additive manufacturing, in particular to equipment for an additive manufacturing technology.
Background
The 3DP forming method is a typical 3D printing technique of powdered (granular) materials, which was first proposed by US5204055a1 in 1989 at the university of massachusetts america. The method comprises the specific processes that a layer of powder is uniformly paved on a platform, a printing head scans and sprays a liquid material in a specific area to enable the powder at the spraying part to be bonded together, the platform descends a certain layer thickness distance at the moment, and the steps are repeated until the powder paving and printing work of all layers is completed.
For a printer adopting a 3DP forming method, a solidified substance and a granular material are uniformly mixed in a mixing tank, then the mixture is added into a powder spreader, a layer of powder granular material is spread on a working platform by the powder spreader, and then, an area covered by a two-dimensional graph obtained by slicing is formed and solidified in the layer of powder only by means of laser sintering or adhesive spraying and the like, so that workpieces required by cumulative forming are printed layer by layer, after the printing is finished, a working box and the working platform are taken out together, and post-treatment work such as secondary curing is carried out.
The manufacturing precision of the 3DP forming method is embodied as the unit height of the descending of the movable platform in the working box, namely, the uniform ascending and descending of the movable platform in a single descending or ascending way are ensured in the production process. At present, two main schemes are adopted for descending the movable bottom plate in the working box, firstly, the movable bottom plate descends by self gravity, and the movable bottom plate is easy to cause jamming risk due to friction between the movable bottom plate and the inner wall of the working box in the descending process; secondly, the lifting movement of the bottom plate is realized by the lifting device, and the scheme needs to add extra execution parts and detection mechanisms, thereby having great disadvantages in the overall structure and cost control.
Disclosure of Invention
In view of the problems of cost increase and complex structure of the work box caused by the lifting device adopted to realize lifting movement in the prior art, a positioning lifting device is needed to be provided, and the positioning lifting device realizes the effects of simple structure and convenient use.
The utility model provides a location lifting devices, includes lifting mechanism and positioning mechanism, lifting mechanism sets up in the positioning mechanism below, positioning mechanism connect in on the work box activity bottom plate, lifting mechanism drives through reciprocating motion positioning mechanism up-and-down motion to realize the up-and-down motion of work box activity bottom plate, realized also that work box activity bottom plate can be with certain speed, certain decline displacement volume uniform motion, thereby guaranteed the printing efficiency and the quality of product. In order to achieve the purpose of the invention, the positioning mechanism comprises a lifting piece, a positioning piece and a locking piece, wherein a boss connected with the movable bottom plate of the working box is arranged on the lifting piece, the positioning piece is a flat plate arranged on one side of the lifting piece connected with the lifting mechanism, a plurality of through holes are arranged in the area of the positioning piece on the lifting piece, the locking piece is arranged in the through holes, and the locking piece is connected with the movable bottom plate of the working box, so that the positioning mechanism and the movable bottom plate of the working box are relatively fixed, the relative fixation of the positioning lifting device and the working box in the printing process is ensured, and the printing quality and efficiency of products are ensured.
Preferably, the cross section of the lug boss is trapezoidal, conical or T-shaped, or the lug boss is a spherical head and the like, so that the lug boss is convenient to be connected to the movable bottom plate of the work box.
Preferably, in order to realize good connection between the positioning mechanism and the movable bottom plate of the working box, the movable bottom plate of the working box is provided with a groove at one side connected with the lifting piece, and the groove is matched with the boss, so that the movable bottom plate of the working box is connected with the lifting piece, and the linkage between the movable bottom plate of the working box and the lifting piece is realized.
Preferably, the retaining member includes that one end is connected elastic component on the setting element and the setting is in the kicking block of the one end of setting element is kept away from to the elastic component, through compressing tightly the retaining member realizes the relatively fixed between positioning mechanism and the work box movable bottom plate to avoid taking place the production quality problem that the displacement caused between location lifting devices and the work box in the operation process.
Preferably, in order to avoid the kicking block wearing and tearing work box movable bottom plate causes work box movable bottom plate life reduces, causes manufacturing cost to increase work box movable bottom plate with the region of retaining member contact is provided with wearing parts, wearing parts detachable sets up on the work box movable bottom plate, when the wearing and tearing phenomenon appears, can be timely, convenient change wearing parts to guarantee work box movable bottom plate's normal operation, promoted production efficiency and reduced the production process cost.
Preferably, in order to improve the locking effect between the locking member and the movable bottom plate of the working box and prevent unnecessary sliding, positioning points are further arranged on the wear-resistant member and matched with the ejector block, so that the ejector block is prevented from sliding on the wear-resistant member. The positions and the number of the positioning points correspond to those of the locking pieces.
As an optimization of the technology of the invention, in order to connect the positioning mechanism and the movable bottom plate of the working box conveniently, flaring ports are arranged at two ends of the groove, the overall profile of the flaring ports is larger than the external profile of the boss, so that the boss is conveniently led into the groove, and the rest part of the groove can be tightly matched with the boss, thereby realizing the tight connection between the boss and the groove, and avoiding the inaccuracy of unit operation displacement and the error of accumulated operation displacement caused by the clearance between the boss and the groove in the up-and-down operation process.
The technical scheme of the invention has the beneficial effects that: the mechanical mechanism in close fit replaces pneumatic or electric connection structures, so that the driving device of the movable bottom plate of the working box is simpler in structure, the manufacturing difficulty of the whole device is reduced, and the use convenience of the device is improved.
Drawings
FIG. 1 is a three-position schematic view of the positioning and lifting device in use;
FIG. 2 is a schematic front view of a positioning and lifting device in use;
FIG. 3 is a schematic structural view of a positioning and lifting device;
FIG. 4 is a schematic view of a boss configuration;
wherein, 1, a work box; 2-a lifting mechanism; 3-a positioning mechanism; 301-a lift; 302-a positioning element; 303-locking member.
Detailed Description
In order to more clearly illustrate the technical solutions of the present invention, the technical solutions of the present invention are described in detail with reference to the accompanying drawings, and it is obvious that the following descriptions are some exemplary embodiments of the present invention, and it is obvious for those skilled in the art that other solutions can be obtained according to the embodiments without creative efforts.
The working box with the positioning and lifting device of the invention is shown in fig. 1, and the specific application and implementation of the invention are described in detail.
As shown in fig. 2 and 3, a positioning and lifting device which can be applied to a work box having a movable floor is provided to reciprocate the movable floor up and down along a side wall of the work box.
The positioning and lifting device comprises a lifting mechanism 1 and a positioning mechanism 3, wherein the lifting mechanism 1 is used for driving the positioning mechanism 3 to reciprocate, and the lifting mechanism 1 is arranged below the positioning mechanism 3; the positioning mechanism 3 comprises a lifting piece 301, a positioning piece 302 and a locking piece 303, the positioning piece 302 is arranged on one side of the lifting piece 301 connected with the lifting mechanism 1, and a through hole for accommodating the locking piece 303 is arranged on the area of the lifting piece 301 corresponding to the positioning piece 302; one end of the locking member 303 penetrates through the through hole to be connected with the positioning member 302, and the other end of the locking member 303 is in abutting contact with the movable bottom plate of the working box, so that the purpose of fixedly positioning the lifting device and the movable bottom plate of the working box is achieved; that is, the locking member 303 functions to lock the positioning and lifting device and the movable bottom plate of the work box again.
One side that lifting member 301 links to each other with work box movable bottom plate is equipped with and is used for the boss of mutually supporting with work box movable bottom plate, is provided with the recess on the work box movable bottom plate simultaneously, the boss with the recess mutually support can realize with location lifting device connect in on the work box movable bottom plate, realize by location lifting device drive work box movable bottom plate is along 1 lateral wall up-and-down motion's of work box purpose and effect. In order to realize lifting member 301 and the direct in close contact with of work box activity bottom plate, boss and recess are closely matched relation to avoid lifting member 301 to drive during the motion of work box activity bottom plate, because the inaccuracy of the unit displacement that can not the zonulae occludens between the two and the problem that the product of production was brought to the error of accumulative total displacement and production management and control are difficult, inefficiency. In this embodiment, as shown in fig. 4, the boss may be in the form of a T-shaped head or a spherical head, that is, the boss and the hook structure for the movable bottom plate of the work box are used to realize downward pulling.
The locking member 303 comprises an elastic member and a top block, wherein one end of the elastic member is connected to the positioning member 302, that is, the locking member 303 passes through a through hole formed in the lifting member 301 and is fixedly connected to the positioning member 302; the other end of the elastic piece is provided with the ejector block, and the ejector block is connected to the elastic piece. The kicking block top touch in on the work box movable bottom plate to the realization removes the supplementary locate function of the locate function of boss and recess, also makes lift positioner and have dual locate function, promoted and guaranteed location lift positioner with relatively fixed, the relatively fixed position relation that can not take place the displacement between the work box movable bottom plate, also simplified the design and the manufacturing of work box. In this embodiment, the top block is a spherical top block, and the elastic member is a spring. In the specific use process, the locking member 303 is always in a compressed state, so that the locking operation of the movable bottom plate of the working box can be better realized. In order to improve the locking effect, the two positioning members 302 are symmetrically arranged on two sides of the lifting mechanism 2, and a plurality of locking members 303 are arranged in the area corresponding to each positioning member 302, so that the locking effect of the locking members 303 is improved.
In this embodiment, the positioning element 302 is a long plate structure, that is, the positioning element 302 is a long plate that is closely attached and symmetrically disposed on one side of the lifting element 301; hold the through-hole setting of retaining member 303 is in with long plate shape on the lift 301 of the region at setting element place, just the retaining member can set up a plurality of to promote the locking effort to work box activity bottom plate.
As an improvement of this embodiment, in order to facilitate the assembly of the boss and the groove, that is, in order to facilitate the assembly of the positioning and lifting device and the movable bottom plate of the work box, flared openings are provided at the entrances at both ends of the groove, and the profile of the flared openings is greater than the external profile of the boss, so that the boss can be conveniently guided into the groove, thereby improving the assembly efficiency and reducing the assembly difficulty of the equipment.
As another improvement of this embodiment, in order to avoid the abrasion of the locking member 303 to the movable bottom plate of the work box, which increases the cost of the production process, that is, in order to avoid the cost and the difficulty of replacing the movable bottom plate of the work box, which is needed to replace the movable bottom plate of the work box, due to the abrasion of the movable bottom plate of the work box, a wear-resistant member is disposed in the contact area between the movable bottom plate of the work box and the locking member 303.
As another improvement of this embodiment, in order to prevent the possible position slippage between the spherical top block and the wear-resistant member, a positioning point may be further provided at a position where the spherical top block contacts the wear-resistant member, and the positioning point may at least accommodate an end of the spherical top block, thereby preventing the spherical top block from displacing relative to the wear-resistant member due to an external force during the operation of the work box.
Through the implementation of the technical scheme, the matching modes of replacing pneumatic, electric and the like by adopting mechanical close contact are realized, the design difficulty, the manufacturing difficulty, the assembly difficulty and the use difficulty of the working box are simplified, and the production and manufacturing cost and the use cost are reduced.
The above embodiment is only a description of a typical application of the technical solution of the present invention, and may be reasonably expanded without creative efforts.
Claims (10)
1. The utility model provides a location lifting devices, includes lifting mechanism and positioning mechanism, and lifting mechanism sets up in the positioning mechanism below, and positioning mechanism connects on work box movable bottom plate, and lifting mechanism drives positioning mechanism and makes reciprocating motion, a serial communication port, positioning mechanism includes lifting piece, setting element, retaining member, be equipped with on the lifting piece with the boss that work box movable bottom plate connects, the setting element is for setting up lifting piece with the flat board of one side that lifting mechanism links to each other lifting piece is last be equipped with a plurality of through-holes in the region at setting element place, be equipped with the retaining member in the through-hole.
2. The positioning and lifting device of claim 1, wherein the boss is trapezoidal, conical, or T-shaped in cross-sectional shape, or the boss is a spherical head.
3. The positioning and lifting device according to claim 1, wherein the movable bottom plate of the work box is provided with a groove which is matched with the boss.
4. The positioning and lifting device of claim 1, wherein the groove is further provided with flared ends at both ends, and the overall profile of the flared ends is larger than the external profile of the boss.
5. The positioning and lifting device as claimed in claim 1, wherein the locking member includes an elastic member connected to the positioning plate through one end of the through-hole and a top block connected to the other end of the elastic member.
6. The positioning and lifting device according to any one of claims 1 to 5, further comprising a wear member provided on the movable floor of the work box at a region opposite to the locking member.
7. The positioning and lifting device as recited in claim 6, wherein the positioning members are symmetrically disposed on both sides of the lifting mechanism.
8. The positioning and lifting device of claim 7, wherein said locking member is provided with a plurality of sets on said positioning member.
9. The positioning and lifting device as recited in claim 6, wherein the wear member further comprises a positioning point for engaging with the top block.
10. An additive manufacturing apparatus comprising the positioning and lifting device of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210303811.3A CN114700503A (en) | 2022-03-26 | 2022-03-26 | Positioning and lifting device and additive manufacturing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210303811.3A CN114700503A (en) | 2022-03-26 | 2022-03-26 | Positioning and lifting device and additive manufacturing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114700503A true CN114700503A (en) | 2022-07-05 |
Family
ID=82171430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210303811.3A Pending CN114700503A (en) | 2022-03-26 | 2022-03-26 | Positioning and lifting device and additive manufacturing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114700503A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120193590A1 (en) * | 2010-10-05 | 2012-08-02 | Horwath William A | Lifting bracket assembly including jack screw connector |
| CN102795572A (en) * | 2011-05-27 | 2012-11-28 | 上海微电子装备有限公司 | Lifter and pneumatic control system thereof |
| CN203979237U (en) * | 2014-07-23 | 2014-12-03 | 瑞安市建鑫机械制造有限公司 | Leaf spring fastening piece and leaf spring linkage structure |
| CN204778598U (en) * | 2015-07-09 | 2015-11-18 | 叶欣 | Firm light combination formula equipment of lifting |
| CN106001417A (en) * | 2016-07-19 | 2016-10-12 | 宁夏共享模具有限公司 | Work box lifting mechanism applied to 3D printing |
| CN111170203A (en) * | 2019-10-31 | 2020-05-19 | 共享智能铸造产业创新中心有限公司 | Be applied to 3D printer lifting mechanism and work box connecting device |
| CN210595078U (en) * | 2020-04-13 | 2020-05-22 | 天津联汇智造科技有限公司 | Lifting device and mobile robot |
| CN111974939A (en) * | 2020-08-25 | 2020-11-24 | 共享智能铸造产业创新中心有限公司 | Lifting mechanism, workbench lifting device and 3D printer |
-
2022
- 2022-03-26 CN CN202210303811.3A patent/CN114700503A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120193590A1 (en) * | 2010-10-05 | 2012-08-02 | Horwath William A | Lifting bracket assembly including jack screw connector |
| CN102795572A (en) * | 2011-05-27 | 2012-11-28 | 上海微电子装备有限公司 | Lifter and pneumatic control system thereof |
| CN203979237U (en) * | 2014-07-23 | 2014-12-03 | 瑞安市建鑫机械制造有限公司 | Leaf spring fastening piece and leaf spring linkage structure |
| CN204778598U (en) * | 2015-07-09 | 2015-11-18 | 叶欣 | Firm light combination formula equipment of lifting |
| CN106001417A (en) * | 2016-07-19 | 2016-10-12 | 宁夏共享模具有限公司 | Work box lifting mechanism applied to 3D printing |
| CN111170203A (en) * | 2019-10-31 | 2020-05-19 | 共享智能铸造产业创新中心有限公司 | Be applied to 3D printer lifting mechanism and work box connecting device |
| CN210595078U (en) * | 2020-04-13 | 2020-05-22 | 天津联汇智造科技有限公司 | Lifting device and mobile robot |
| CN111974939A (en) * | 2020-08-25 | 2020-11-24 | 共享智能铸造产业创新中心有限公司 | Lifting mechanism, workbench lifting device and 3D printer |
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