CN107900338B - Fine structure frock is made to complex based on 3D prints - Google Patents
Fine structure frock is made to complex based on 3D prints Download PDFInfo
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- CN107900338B CN107900338B CN201711270123.7A CN201711270123A CN107900338B CN 107900338 B CN107900338 B CN 107900338B CN 201711270123 A CN201711270123 A CN 201711270123A CN 107900338 B CN107900338 B CN 107900338B
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- forming
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- base body
- positioning hole
- hole
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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
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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
- B22F12/30—Platforms or substrates
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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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
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- 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
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- 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
Abstract
The invention relates to a tool for compositely manufacturing a fine structure based on 3D printing, and relates to the technical field of 3D printing equipment. The invention designs a manufacturing platform tool by adopting the idea of compositely manufacturing a fine structure by selective laser melting on the traditional structural member, and realizes the rapid clamping and positioning of the tool. The original processing scheme needs to synchronously print the substrate to meet the requirement of adding a card in a subsequent machine, the forming efficiency is low, and the average printing time of a single product is about 2 hours; by adopting a composite manufacturing idea, the machining chuck is machined in place in advance and is installed on a special tool, so that the printing of the machining chuck is avoided, the printing time is greatly shortened, the efficiency is improved, the chuck matrix can be repeatedly used, and the manufacturing cost is greatly saved.
Description
Technical Field
The invention relates to the technical field of 3D printing equipment, in particular to a tool for compositely manufacturing a fine structure based on 3D printing.
Background
The 3D printing technology is a technology for realizing the rapid free forming manufacturing of parts by integrating computer graphic processing, digital information and control, electromechanical control technology and material technology based on the discrete-accumulation principle and adopting a material layer-by-layer accumulation method. The 3D printing technology can reduce the complexity of product manufacturing to a great extent, and enlarges the production and manufacturing range, however, the laser selective melting forming efficiency and cost for some key structural components in the fields of aerospace and the like still cannot meet the development requirements of model products. The 3D printing is combined with the traditional manufacturing, and the complex and fine structure is manufactured on the traditional casting, forging and machining parts in a compounding mode. The method has the advantages that the thick and large base body part is manufactured by the traditional processing method, the local fine structure is formed by 3D printing, the efficiency and the cost advantages of the simple manufacturing characteristic and the fine 3D printing manufacturing characteristic of the traditional method can be comprehensively exerted, and the method is an effective measure for solving the bottleneck that the high-efficiency and low-cost material increase manufacturing is difficult to take into account. The method for compositely manufacturing the fine structure by selective laser melting belongs to high-precision processing, and subsequent machining can be omitted, so that the requirement on the connection positioning precision of a base body part and a formed fine structure is high, and a special or general tool needs to be designed according to the characteristics of a product.
Disclosure of Invention
Technical problem to be solved
The technical problem to be solved by the invention is as follows: how to optimize and improve the selective laser melting forming method of the outer sleeve nut of the existing model product, and provide a selective laser melting composite forming fine structure tool design to improve the positioning precision of a matrix and a composite manufacturing fine structure.
(II) technical scheme
In order to solve the technical problem, the invention provides a tool for compositely manufacturing a fine structure based on 3D printing, which comprises: the forming device comprises a forming substrate 1, a step hole 2, a central positioning hole 3, an edge positioning hole 4, four screw holes 5, a forming base body 6 and fixing screws 7; a plurality of step holes 2 with the size of phi 22.5mm are uniformly distributed on the forming substrate 1, and the number is determined by a selective laser melting forming program; processing internal threads at the bottom of the forming base body 6, placing the forming base body 6 into the stepped hole 2, and fixing the bottom end of the forming base body 6 by using a fixing screw 7; a central positioning hole 3 and an edge positioning hole 4 are respectively processed at the central position and the edge position of the forming substrate 1, and respectively play a role in positioning; four screw holes 5 are distributed at four angular positions of the forming base plate 1 and are connected and fixed with the equipment forming platform through the four screw holes 5, after the whole tool is installed, a laser selective melting forming program can be adopted on the forming base body 6 to manufacture an outer sleeve nut 8, the diameter of the outer sleeve nut 8 is the same as that of the step hole 2 and the forming base body 6, and the outer sleeve nut 8 is provided with inner and outer double-layer threads.
Preferably, the size of the stepped hole 2 is phi 22.5 mm.
Preferably, the forming base 6 has dimensions of 22.5mm and a length of 50mm
Preferably, the bottom of the forming base body 6 is provided with internal threads with the diameter phi of 8mm and the depth of 10 mm.
Preferably, a central positioning hole 3 with a diameter of 8mm is machined at the central position and the edge position of the forming substrate 1.
Preferably, an edge positioning hole 4 with a diameter of 8mm is machined at the edge position of the forming substrate 1.
(III) advantageous effects
The invention designs a manufacturing platform tool by adopting the idea of compositely manufacturing a fine structure by selective laser melting on the traditional structural member, and realizes the rapid clamping and positioning of the tool. The original processing scheme needs to synchronously print the substrate to meet the requirement of adding a card in a subsequent machine, the forming efficiency is low, and the average printing time of a single product is about 2 hours; by adopting a composite manufacturing idea, the machining chuck is machined in place in advance and is installed on a special tool, so that the printing of the machining chuck is avoided, the printing time is greatly shortened, the efficiency is improved, the chuck matrix can be repeatedly used, and the manufacturing cost is greatly saved.
Drawings
FIG. 1 is a various directional view of the present invention;
FIG. 2 is a view of a shell nut that may be made using the tooling of the present invention in various orientations
Detailed Description
In order to make the objects, contents, and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
The invention discloses a tool for compositely manufacturing a fine structure based on 3D printing, wherein the top view, the bottom view, the front equal measuring view, the cross sectional view and the partial enlarged view of the structure diagram of the tool are shown in figure 1. The size of the tool is 252mm multiplied by 30mm, and the tool comprises a forming substrate 1, a step hole 2, a central positioning hole 3, an edge positioning hole 4, four screw holes 5, a forming base body 6 and fixing screws 7. Step holes 2 with the size of phi 22.5mm are uniformly distributed on the forming substrate 1 and used for mounting printing parts of the forming base body 6, the number of the step holes is determined by a generating printing program, and no specific number limit exists; the size of the forming base body 6 is phi 22.5mm, the length is 50mm, internal threads with the diameter phi 8mm and the depth 10mm are processed at the bottom, the forming base body 6 is placed in the step hole 2, and the bottom end of the forming base body 6 is fixed by a fixing screw 7; a central positioning hole 3 with the diameter of 8mm and an edge positioning hole 4 with the diameter of 8mm are respectively processed at the central position and the position close to the edge of the forming substrate 1 to play a positioning role; four screw holes 5 are distributed at four angular positions of the forming substrate 1, play a role in fixing, and are connected and fixed with the equipment forming platform through screws. After the whole tool is installed, the outer sleeve nut 8 can be manufactured on the forming base body 6 in a melting and compounding mode by adopting laser selective areas, the size of the outer sleeve nut 8 is phi 22.5mm multiplied by 12mm, the inner and outer double-layer threads are arranged, and the front view, the top view, the front view and the cross section of the outer sleeve nut are shown in fig. 2.
The preparation of the above-mentioned frock, shaping benchmark location and adopt the above-mentioned frock to make 8 methods of the outer sleeve nut are:
respectively processing a central positioning hole 3 with phi of 8mm and an edge positioning hole 4 at the central position and the edge position of a forming substrate 1 with four corners respectively provided with a screw hole 5;
positioning through a central positioning hole 3 and an edge positioning hole 4, and installing and fixing a forming substrate 1 on an equipment forming platform through a screw hole 5 by using a screw;
typesetting the outer sleeved nuts 8, determining the number of the outer sleeved nuts 8 and the typesetting position on an equipment forming platform to obtain a laser selective melting forming program of the outer sleeved nuts 8;
transmitting the laser selective melting forming program obtained in the step to 3D printing equipment, and only printing a first layer;
after the first-layer printing is finished, screws at the positions of the four screw holes 5 are dismounted, the forming substrate 1 is taken out, machining is carried out according to the first-layer printing outline, and a plurality of phi 22.5mm step holes 2 are prepared on the forming substrate 1;
processing a forming matrix 6 with the diameter of 22.5mm multiplied by 50mm, and processing internal threads with the diameter of 8mm and the depth of 10mm at one end;
placing a phi 22.5mm multiplied by 50mm forming base body 6 with internal threads with the diameter phi 8mm and the depth 10mm at the bottom end into the step hole 2 prepared in the step, and screwing and fixing the internal threads at the bottom end of the forming base body 6 by using a fixing screw 7 to finish the preparation of the tool;
and (3) positioning the tool prepared in the step through the central positioning hole 3 and the edge positioning hole 4, and fixing the tool on an equipment forming platform through the four screw holes 5 by using screws to complete the installation and the fixation of the tool.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (3)
1. The utility model provides a combined manufacturing fine structure frock based on 3D prints, its characterized in that includes: the forming die comprises a forming substrate (1), a step hole (2), a central positioning hole (3), an edge positioning hole (4), four screw holes (5), a forming base body (6) and fixing screws (7); a plurality of step holes (2) with the size of phi 22.5mm are uniformly distributed on the forming substrate (1), and the number is determined by a selective laser melting forming program; processing internal threads at the bottom of the forming base body (6), placing the forming base body (6) into the stepped hole (2), and fixing the bottom end of the forming base body (6) by using a fixing screw (7); a central positioning hole (3) and an edge positioning hole (4) are respectively processed at the central position and the edge position of the forming substrate (1) to respectively play a role in positioning; four screw holes (5) are distributed at four angular positions of a forming base plate (1), the forming base plate is connected and fixed with an equipment forming platform through the four screw holes (5), after the whole tool is installed, a selective laser melting forming program can be adopted on a forming base body (6) to manufacture an outer sleeve nut (8), the diameter of the outer sleeve nut (8) is the same as that of the stepped hole (2) and the forming base body (6), and the outer sleeve nut and the forming base body are provided with inner threads and outer threads;
the stepped hole (2) is prepared in the following way:
respectively processing a phi 8mm central positioning hole (3) and an edge positioning hole (4) at the central position and the edge position of a forming substrate (1) with four corners respectively provided with a screw hole (5);
the forming substrate (1) is fixed on the equipment forming platform through a screw hole (5) by means of screw mounting through the positioning of a central positioning hole (3) and an edge positioning hole (4);
typesetting the outer sleeved nuts (8), determining the number of the outer sleeved nuts (8) and the typesetting position on an equipment forming platform, and obtaining a laser selective melting forming program of the outer sleeved nuts (8);
transmitting the obtained laser selective melting forming program of the outer sleeve nut (8) to a 3D printing device, and only printing a first layer;
and (3) after the first layer is printed, detaching the screws at the positions of the four screw holes (5), taking out the forming substrate (1), machining according to the first layer printed outline, and preparing a plurality of step holes (2) with the diameter of 22.5mm on the forming substrate (1).
2. 3D printing-based composite manufacturing fine structure tooling according to claim 1, characterized in that the forming matrix (6) has dimensions of 22.5mm and a length of 50 mm.
3. 3D printing-based composite manufacturing fine structure tooling according to claim 1, characterized in that the bottom of the forming base (6) is internally threaded with a diameter of 8mm and a depth of 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711270123.7A CN107900338B (en) | 2017-12-05 | 2017-12-05 | Fine structure frock is made to complex based on 3D prints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711270123.7A CN107900338B (en) | 2017-12-05 | 2017-12-05 | Fine structure frock is made to complex based on 3D prints |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107900338A CN107900338A (en) | 2018-04-13 |
| CN107900338B true CN107900338B (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711270123.7A Active CN107900338B (en) | 2017-12-05 | 2017-12-05 | Fine structure frock is made to complex based on 3D prints |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079132B (en) * | 2018-07-11 | 2020-10-23 | 广东汉邦激光科技有限公司 | Positioning method for 3D grafting printing |
| AU2019398710A1 (en) * | 2018-12-12 | 2021-06-10 | Bae Systems Plc | Fixture system for use in additive manufacturing |
| CN109822093A (en) * | 2018-12-26 | 2019-05-31 | 西安铂力特增材技术股份有限公司 | A kind of device for grafting and engrafting method of SLM device molding die |
| TW202037482A (en) * | 2019-03-27 | 2020-10-16 | 香港商香港科能有限公司 | Automatic positioning and processing system for three-dimensional printed product |
| CN110216284B (en) * | 2019-06-06 | 2021-05-04 | 上海理工大学 | Embedded laser selective melting 3D printing substrate |
| CN111468722A (en) * | 2020-04-01 | 2020-07-31 | 长沙新材料产业研究院有限公司 | Novel substrate, method and application for verifying 3D printing metal powder |
| CN115029513A (en) * | 2022-08-12 | 2022-09-09 | 苏州亚太精睿传动科技股份有限公司 | Manufacturing method of main inductive copper body of gear quenching inductor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2714375A1 (en) * | 2011-06-02 | 2014-04-09 | A. Raymond et Cie | Fasteners manufactured by three-dimensional printing |
| DK2952275T3 (en) * | 2014-06-04 | 2017-04-24 | Carl Aug Picard Gmbh | Worm means and method for further making worm means |
| CN106312066B (en) * | 2016-09-29 | 2018-08-31 | 首都航天机械公司 | A kind of assembled substrate for selective laser fusing increasing material manufacturing |
| CN106956002B (en) * | 2017-04-19 | 2018-11-23 | 上海工程技术大学 | Bottom plate apparatus is combined in 3D printing |
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| CN107900338A (en) | 2018-04-13 |
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