CN116275135A - Large-format laser selective melting forming 3D printing device with position regulation and control of vibrating mirror system - Google Patents
Large-format laser selective melting forming 3D printing device with position regulation and control of vibrating mirror system Download PDFInfo
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- CN116275135A CN116275135A CN202310168385.1A CN202310168385A CN116275135A CN 116275135 A CN116275135 A CN 116275135A CN 202310168385 A CN202310168385 A CN 202310168385A CN 116275135 A CN116275135 A CN 116275135A
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- 238000010146 3D printing Methods 0.000 title claims abstract description 19
- 238000002844 melting Methods 0.000 title claims abstract description 14
- 230000008018 melting Effects 0.000 title claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 99
- 230000007246 mechanism Effects 0.000 claims abstract description 83
- 230000007480 spreading Effects 0.000 claims abstract description 14
- 238000003892 spreading Methods 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 10
- 238000007790 scraping Methods 0.000 claims description 46
- 230000005540 biological transmission Effects 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 12
- 238000011084 recovery Methods 0.000 claims description 9
- 230000033001 locomotion Effects 0.000 claims description 8
- 230000004308 accommodation Effects 0.000 claims 1
- 238000010408 sweeping Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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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
- B22F12/40—Radiation means
- B22F12/49—Scanners
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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
- B22F12/50—Means for feeding of material, e.g. heads
- B22F12/52—Hoppers
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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
- B22F12/60—Planarisation devices; Compression devices
- B22F12/67—Blades
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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
- B22F12/90—Means for process control, e.g. cameras or sensors
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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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- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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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
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- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
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- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a large-format laser selective melting forming 3D printing device with a vibrating mirror system position regulation function, which comprises: a main body frame having a plurality of receiving chambers; the powder supply mechanism is arranged in the accommodating cavity of the main body frame and has a lifting function, and the powder spreading mechanism is arranged on the working plane of the main body frame and can horizontally move along the working plane; the scanning galvanometer mechanism is arranged on the main body frame and is positioned above the working plane, and can move bidirectionally along the X axis and the Y axis and perform omnibearing scanning on the working plane; and the control mechanism is respectively in communication connection with the powder supply mechanism, the powder spreading mechanism and the scanning galvanometer mechanism. The device has reliable structure and good usability, and can enlarge the forming projection area by controlling the scanning galvanometer to move in different areas on the fixed horizontal plane, thereby realizing large-area forming processing, effectively controlling the sweeping range and doubling the forming size and forming efficiency of the equipment.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a large-format laser selective melting forming 3D printing device with a vibrating mirror system for position regulation.
Background
Rapid prototyping (Rapid Phrototyping, hereinafter RP) technology, also known as additive manufacturing (Addictive Manufacturing, hereinafter AM) technology, has since emerged in the 70 s of the 20 th century, and RP has abandoned conventional "cut-down" material-forming work-pieces processing methods, compared to conventional subtractive manufacturing techniques, and has adopted "stacked" material-making free-form techniques. In the whole forming process, firstly, a three-dimensional model of a formed entity is uniformly divided into a plurality of layers according to the preset slicing thickness, then a first layer of plane entity is manufactured through a plane processing method, then the entity plane formed at the last time is taken as a base layer, and the entity planes of all the layers of patterns are stacked layer by layer to form a final entity part. Meanwhile, the rapid prototyping technology brings revolutionary and subverted changes to the mechanical manufacturing industry, greatly promotes the production mode change of the traditional manufacturing industry, and a new manufacturing system enters the field of view of the public and is even called as a mark of the third industrial revolution.
The main of large-scale laser 3D printer includes: long focal length f-theta field lens, multi-beam splice shaping and galvanometer movement are used. The long focal length f-theta field lens has certain defects in changing the size of the sweeping field range, the focused laser spots become large due to the long focal length, and high-power laser output parameters are generally needed to compensate for the laser power density loss caused by the large spots. In addition, under the influence of high power and large light spots, the forming precision and the surface smoothness of the formed part are insufficient to a certain extent. The second scheme uses multi-beam splicing, each laser and each scanning galvanometer are assembled in a plurality of identical sweeping fields by increasing the corresponding number of the lasers and the scanning galvanometers, each laser works in each partition in the forming process at the same time, so that the forming size and the forming efficiency of the equipment are doubled, however, as the number of scanning systems is increased, the corresponding system control and software development difficulty is found to be gradually increased, and meanwhile, the forming quality of a spliced seam of a formed part at a laser connecting forming position cannot be effectively controlled. And the domestic large-size SLM metal rapid prototyping technology and equipment have few selectable products, and most of the large-size SLM metal rapid prototyping technology and equipment have the defects of low manufacturing precision, poor stability and the like.
Disclosure of Invention
In order to solve the technical problems, the invention provides a large-format laser selective melting forming 3D printing device with a vibrating mirror system for position regulation.
The technical scheme for solving the technical problems is as follows: a large-format laser selective melting forming 3D printing device with position regulation and control of a galvanometer system comprises:
a main body frame having a plurality of receiving chambers;
the powder supply mechanism is arranged in the accommodating cavity of the main body frame and has a lifting function, and powder is conveyed to the working plane of the main body frame through the powder supply mechanism;
the powder paving mechanism is arranged on the working plane of the main body frame and can horizontally move along the working plane, and powder is paved on the working plane through the powder paving mechanism;
the scanning galvanometer mechanism is arranged on the main body frame and is positioned above the working plane, and can move bidirectionally along the X axis and the Y axis and perform omnibearing scanning on the working plane;
and the control mechanism is respectively in communication connection with the powder supply mechanism, the powder spreading mechanism and the scanning galvanometer mechanism.
Further, the powder supply mechanism comprises a powder supply module and a forming module which respectively have lifting functions, and the powder supply module and the forming module are arranged in the adjacent accommodating cavities of the main body frame;
the powder supply module and the forming module both comprise a base, a lifting substrate and a lifting driving mechanism for driving the lifting substrate to perform lifting movement;
the lifting base plate of the powder supply module is lifted along the powder supply cylinder, the lifting base plate of the forming module is lifted along the forming cylinder, and the powder supply cylinder and the forming cylinder are respectively arranged in the accommodating cavity of the main body frame.
Further, fixed plates are arranged on the periphery of the base respectively, the four fixed plates enclose a lifting cavity, and the lifting base plate is driven by the lifting driving mechanism to do lifting motion along the lifting cavity.
Further, the lifting driving mechanism comprises a servo motor, a ball screw connected with the output end of the servo motor through a coupler, a ball screw nut matched and connected with the end part of the ball screw far away from the servo motor, and a sliding block matched with the ball screw in a sliding way, the lifting base plate is connected with the sliding block, and the servo motor is in communication connection with the control mechanism.
Further, spread the powder mechanism and include scraping the material support, the activity sets up scraping the flitch and be used for driving scraping the material support and carry out horizontal movement scrape material actuating mechanism on scraping the material support, scrape the material actuating mechanism setting and be in on the main body frame, scrape material actuating mechanism with control mechanism communication connection.
Further, the scraping support comprises a scraping seat arranged on the supporting frame of the main body frame in a sliding manner and a scraping plate frame arranged on the scraping seat, and the scraping plate is arranged on the scraping seat and can be adjusted in the vertical position along the scraping seat.
Further, the scanning galvanometer mechanism comprises an X-axis moving module, a Y-axis moving module arranged on the X-axis moving module in a sliding manner and a scanning galvanometer arranged on the Y-axis moving module in a sliding manner, and a portal frame structure for the scanning galvanometer to move bidirectionally is formed through the X-axis moving module and the Y-axis moving module.
Further, the X-axis moving module comprises a first moving module and a second moving module, the Y-axis moving module is arranged between the first moving module and the second moving module in a sliding mode, and the first moving module and the second moving module are driven by a screw rod.
Further, the Y-axis moving module comprises a module shell, a ball screw transmission assembly positioned in the module shell and a vibrating mirror support connected to the ball screw transmission assembly, and the scanning vibrating mirror is arranged on the vibrating mirror support.
Further, a powder recovery cylinder is provided on the main body frame, and the powder recovery cylinder is located at the side of the forming cylinder, and excess powder is pushed into the powder recovery cylinder by the scraper.
The invention has the following beneficial effects: the large-format laser selective melting forming 3D printing device with the position regulation and control of the vibrating mirror system is reliable in structure and good in usability, and the scanning vibrating mirror is controlled to move in a zoned mode on a fixed horizontal plane, so that forming projection area is enlarged, large-area forming processing is achieved, the sweeping range can be effectively controlled, and the forming size and forming efficiency of equipment are doubled.
The device adopts the over-and-under type powder supply structure, and supplies powder jar and shaping jar to adopt the same structure, has ensured that the volume of supplying powder absolutely satisfies the shaping work of equipment. And secondly, an embedded lifting platform is adopted, so that the stability of the whole system is greatly improved. And through this specific structure of sending down powder, the smoke and dust that has avoided sending up powder form powder and dropped and has appeared causes bad operational environment to the laser scanning link afterwards, perhaps makes the camera lens of vibrating mirror receive the pollution, influences the shaping quality. And adopt and send powder structure down can provide powder more steadily, whole powder storage structure is outside the cabin body simultaneously, can store more raw and other materials, and it is more convenient when supplementary powder. In addition, the powder supply cylinder and the forming cylinder are square cylinders, so that the space of the equipment is fully utilized, and the overall compactness of the equipment is ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a side cross-sectional view of the present invention;
FIG. 4 is a schematic diagram of a powder supplying module or a forming module according to the present invention;
FIG. 5 is a front view of a powder feeding module or a forming module according to the present invention;
FIG. 6 is a schematic diagram of a powder spreading mechanism in the present invention;
FIG. 7 is a side cross-sectional view of the powder spreading mechanism of the present invention;
FIG. 8 is a schematic diagram of a scanning galvanometer mechanism according to the present invention;
FIG. 9 is a top view of a scanning galvanometer mechanism according to the invention.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
As shown in fig. 1 to 3, a large-format laser selective melting forming 3D printing device with position regulation and control of a galvanometer system comprises a main body frame 1 with a plurality of accommodating cavities, wherein the accommodating cavities on the main body frame 1 can be used as a space for installing a powder supply mechanism 2, and the weight of the main body frame 1 is greatly reduced through the design of the accommodating cavities, so that the whole device is light. A powder supply mechanism 2 with a lifting function is arranged in the accommodating cavity of the main body frame 1, and powder is conveyed onto a working plane 3 of the main body frame 1 through the powder supply mechanism 2. The powder feeding mechanism 2 adopts a lower powder feeding structure, so that the problem that smoke dust generated when powder in a powder feeding form falls off causes bad working environment to a later laser scanning link is avoided, or the lens of a vibrating mirror is polluted, and the forming quality is influenced. The working plane 3 of the main body frame 1 is provided with a powder spreading mechanism 4 which can horizontally move along the working plane 3, and powder is spread on the working plane 3 through the powder spreading mechanism 4. The powder paving structure main body adopts a transmission mode of matching the ball screw with the servo motor 2030, so that the powder paving mechanism 4 can stably run, and the stable performance of powder paving operation is ensured. The main body frame 1 is arranged above the working plane 3 and is also arranged on the scanning galvanometer mechanism 5, and the scanning galvanometer mechanism 5 can move bidirectionally along the X axis and the Y axis and perform omnibearing scanning on the working plane 3. When the laser beam works, the laser beam enters the vibration lens through the laser cavity, is reflected to the reflecting mirror controlled by the motor along the X axis and finally acts on the working plane 3 through the reflecting mirror controlled by the motor along the Y axis, and the scanning at any position in the whole view field is realized by utilizing the cooperation of the deflection angles of the two reflecting mirrors.
In order to improve the automation degree of the device, the powder supply mechanism 2, the powder spreading mechanism 4 and the scanning galvanometer mechanism 5 are respectively in communication connection with the control mechanism 6. The operating conditions of several mechanisms are automatically controlled by a control mechanism 6.
As shown in fig. 4 to 5, the powder feeding mechanism 2 includes a powder feeding module 20 and a forming module 21 each having a lifting function, the powder feeding module 20 and the forming module 21 being disposed in adjacent accommodating chambers of the main body frame 1; the powder supply module 20 and the forming module 21 comprise a base 201, a lifting substrate 202 and a lifting driving mechanism 203 for driving the lifting substrate 202 to move up and down; the lifting base plate 202 of the powder supply module 20 lifts along the powder supply cylinder 204, the lifting base plate 202 of the forming module 21 lifts along the forming cylinder 205, and the powder supply cylinder 204 and the forming cylinder 205 are respectively arranged in the accommodating cavity of the main body frame 1. The powder feeding mechanism 2 can be regarded as a platform lifting transmission system, after the scanning galvanometer 52 completes one round of operation, the lifting base plate 202 of the powder feeding cylinder 204 module needs to be lifted, the powder at the top end is pushed to the horizontal plane where the powder spreading mechanism 4 can work, and the plane of the forming cylinder 205 is lowered by a set layer thickness height, so that the powder is uniformly spread on the forming plane completed by the previous round. The powder supply cylinder 204 and the forming cylinder 205 are designed in the same size, so that the powder supply quantity is ensured to absolutely meet the forming work of the equipment, the powder supply cylinder 204 and the forming cylinder 205 are both square cylinder structures, the square cylinders can fully utilize the equipment space, and the overall compactness of the equipment is ensured. The cylinder body is fixedly connected with the working plane 3 through a nut.
In addition, fixing plates 206 are respectively disposed around the base 201, and four fixing plates 206 enclose a lifting cavity, along which the lifting substrate 202 is driven by the lifting driving mechanism 203 to move in a lifting manner. The powder supply mechanism 2 forms an embedded structure through the surrounding of the four fixing plates 206, namely, the base 201 and the fixing plates 206 are wrapped by the powder supply mechanism 2, so that the overall stability is improved.
The fixing plate 206 is provided with a guide rail, the side surface of the lifting base plate 202 is provided with a slide block, and the lifting base plate 202 is linearly lifted under the guiding action of the slide rail and the slide block under the driving action of the lifting driving mechanism 203. Further, the structure of the rail connection may be divided into a four-side rail connection and a double-side rail connection structure. For the peripheral guide rails, the guide rails are uniformly arranged, so that the load of the structure is symmetrical, but the lifting system with the structure is complex to install; the second scheme is symmetrical when bearing load, the transmission system can be arranged on two sides without guide rails, and the assembly is convenient, so that a double-side four-guide-rail structure is preferably adopted in the invention.
The lifting driving mechanism 203 comprises a servo motor 2030, a ball screw 2031 connected with the output end of the servo motor 2030 through a coupler, a ball screw nut connected to the end of the ball screw 2031 far away from the servo motor 2030 in a matched mode, and a sliding block 2032 slidingly matched with the ball screw 2031, the lifting base plate 202 is connected with the sliding block, and the servo motor 2030 is in communication connection with the control mechanism 6. When in use, the servo motor 2030 drives the ball screw 2031 to rotate, and then drives the sliding block to move upwards along the length direction of the ball screw 2031, and further drives the lifting substrate 202 to move up and down, and the transmission is stable and reliable.
As shown in fig. 6 to 7, the powder spreading mechanism 4 includes a scraping support 40, a scraping plate 41 movably disposed on the scraping support 40, and a scraping driving mechanism 42 for driving the scraping support 40 to horizontally move, wherein the scraping driving mechanism 42 is disposed on the main body frame 1, and the scraping driving mechanism 42 is in communication connection with the control mechanism 6. The scraping support 40 includes a scraping seat 401 slidably provided on the support frame 43 of the main body frame 1 and a scraping plate frame 402 provided on the scraping seat 401, and the scraping plate 41 is provided on the scraping seat 401 and is adjustable in vertical position along the scraping seat 401. Two linear slide block guide rail auxiliary supports are arranged on the supporting frame 43 of the main body frame 1, one linear slide block guide rail auxiliary support is arranged on the side face of the working table surface of the main body frame 1, one end of the scraping seat 401 is slidably connected to the two linear slide block guide rail auxiliary supports, and the other end of the scraping seat is slidably connected to the slide block guide rail auxiliary support on the side face of the working table surface, so that a sliding structure with a triangular structure is formed, the stability and the rigidity of integral transmission are greatly improved, and the forming of a large-size forming surface is ensured. The scraping plate 41 is connected to the scraping seat 401 through bolts, and a plurality of U-shaped grooves are formed in the scraping plate 41 along the length direction, and the positions of the bolts on the U-shaped grooves are adjusted according to use requirements, so that the positions of the scraping plate 41 on the scraping seat 401 are adjusted.
As shown in fig. 8 to 9, the scanning galvanometer mechanism 5 includes an X-axis moving module 50, a Y-axis moving module 51 slidably disposed on the X-axis moving module 50, and a scanning galvanometer 52 slidably disposed on the Y-axis moving module 51, and a gantry structure for bi-directional movement of the scanning galvanometer 52 is formed by the X-axis moving module 50 and the Y-axis moving module 51. The X-axis moving module 50 includes a first moving module 501 and a second moving module 502, the y-axis moving module 51 is slidably disposed between the first moving module 501 and the second moving module 502, and the first moving module 501 and the second moving module 502 all adopt screw transmission. The screw transmission adopts a ball screw 2031 module, and the ball screw 2031 module comprises a motor, a motor mounting seat, a ball screw 2031, a slide block guide rail and other structures. The Y-axis moving module 51 is disposed on the slider of the first moving module 501 and the slider of the second moving module 502 through the galvanometer bracket 512, and is driven by a motor to move in the X-axis direction.
The Y-axis moving module 51 includes a module housing 510, a ball screw transmission assembly 511 disposed in the module housing 510, and a galvanometer bracket 512 connected to the ball screw transmission assembly, and the scanning galvanometer 52 is disposed on the galvanometer bracket 512. The ball screw transmission assembly is structured as above, and drives the ball screw to rotate under the drive of the motor, so that the sliding block is driven to move left and right, and the vibrating mirror bracket 512 is driven to move left and right, so that the scanning vibrating mirror 52 on the vibrating mirror bracket 512 moves, and the movement in the Y-axis direction is realized.
The main body frame 1 is provided with a powder recovery cylinder 7, and the powder recovery cylinder 7 is located on the side of the forming cylinder 205, and excess powder is pushed into the powder recovery cylinder 7 by the scraper 41. The powder is recovered by the powder recovery cylinder 7, so that bad working environment caused by smoke dust generated when the powder in the powder feeding form falls off to a later laser scanning link is avoided, or the lens of the vibrating mirror is polluted, and the forming quality is influenced.
The foregoing is only illustrative of the present invention and is not to be construed as limiting thereof, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present invention.
Claims (10)
1. Large-format laser selective melting forming 3D printing device with position regulation and control of vibrating mirror system is characterized by comprising:
a main body frame (1) having a plurality of accommodation chambers;
the powder supply mechanism (2) is arranged in the accommodating cavity of the main body frame (1) and has a lifting function, and powder is conveyed onto the working plane (3) of the main body frame (1) through the powder supply mechanism (2);
a powder spreading mechanism (4) which is arranged on the working plane (3) of the main body frame (1) and can horizontally move along the working plane (3), wherein powder is spread on the working plane (3) through the powder spreading mechanism (4);
the scanning galvanometer mechanism (5) is arranged on the main body frame (1) and is positioned above the working plane (3), and the scanning galvanometer mechanism (5) can move bidirectionally along an X axis and a Y axis and perform omnibearing scanning on the working plane (3);
and a control mechanism (6) which is respectively in communication connection with the powder supply mechanism (2), the powder spreading mechanism (4) and the scanning galvanometer mechanism (5).
2. The large-format laser selective melting forming 3D printing device with the position regulation and control of the vibrating mirror system according to claim 1, wherein the powder supply mechanism (2) comprises a powder supply module (20) and a forming module (21) which respectively have a lifting function, and the powder supply module (20) and the forming module (21) are arranged in adjacent accommodating cavities of the main body frame (1);
the powder supply module (20) and the forming module (21) comprise a base (201), a lifting substrate (202) and a lifting driving mechanism (203) for driving the lifting substrate (202) to perform lifting movement;
the lifting substrate (202) of the powder supply module (20) is lifted along the powder supply cylinder (204), the lifting substrate (202) of the forming module (21) is lifted along the forming cylinder (205), and the powder supply cylinder (204) and the forming cylinder (205) are respectively arranged in the accommodating cavity of the main body frame (1).
3. The large-format laser selective melt forming 3D printing device with position regulation and control of the galvanometer system according to claim 2, wherein fixing plates (206) are respectively arranged around the base (201), four fixing plates (206) enclose a lifting cavity, and the lifting substrate (202) is driven by a lifting driving mechanism (203) to do lifting motion along the lifting cavity.
4. The large-format laser selective melt forming 3D printing device with position regulation and control of a galvanometer system according to claim 2, wherein the lifting driving mechanism (203) comprises a servo motor (2030), a ball screw (2031) connected with the output end of the servo motor (2030) through a coupler, a ball screw nut matched and connected with the end part of the ball screw (2031) far away from the servo motor (2030), and a sliding block (2032) matched and connected with the ball screw (2031) in a sliding mode, the lifting substrate (202) is connected with the sliding block, and the servo motor (2030) is in communication connection with the control mechanism (6).
5. The large-format laser selective melting forming 3D printing device with position regulation and control of a vibrating mirror system according to claim 1, wherein the powder spreading mechanism (4) comprises a scraping support (40), a scraping plate (41) movably arranged on the scraping support (40) and a scraping driving mechanism (42) for driving the scraping support (40) to horizontally move, the scraping driving mechanism (42) is arranged on the main body frame (1), and the scraping driving mechanism (42) is in communication connection with the control mechanism (6).
6. The large-format laser selective melt forming 3D printing device with position control of a galvanometer system according to claim 5, wherein the scraping support (40) comprises a scraping seat (401) slidably arranged on a supporting frame (43) of the main body frame (1) and a scraping plate frame (402) arranged on the scraping seat (401), and the scraping plate (41) is arranged on the scraping seat (401) and can be adjusted in the vertical position along the scraping seat (401).
7. The large-format laser selective melting forming 3D printing device with position regulation and control of a galvanometer system according to claim 1, wherein the scanning galvanometer mechanism (5) comprises an X-axis moving module (50), a Y-axis moving module (51) arranged on the X-axis moving module (50) in a sliding mode and a scanning galvanometer (52) arranged on the Y-axis moving module (51) in a sliding mode, and a portal frame structure for the scanning galvanometer (52) to move in a two-way mode is formed through the X-axis moving module (50) and the Y-axis moving module (51).
8. The large-format laser selective melting forming 3D printing device based on position regulation and control of a galvanometer system according to claim 7, wherein the X-axis moving module (50) comprises a first moving module (501) and a second moving module (502), the Y-axis moving module (51) is slidably arranged between the first moving module (501) and the second moving module (502), and both the first moving module (501) and the second moving module (502) adopt screw transmission.
9. The large-format laser selective melt forming 3D printing device according to claim 7, wherein the Y-axis moving module (51) comprises a module housing (510), a ball screw transmission assembly (511) located in the module housing (510), and a galvanometer bracket (512) connected to the ball screw transmission assembly, and the scanning galvanometer (52) is disposed on the galvanometer bracket (512).
10. The large-format laser selective melting forming 3D printing device with position regulation and control of a galvanometer system according to claim 2, characterized in that a powder recovery cylinder (7) is arranged on the main body frame (1), and the powder recovery cylinder (7) is located at the side of the forming cylinder (205).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310168385.1A CN116275135A (en) | 2023-02-24 | 2023-02-24 | Large-format laser selective melting forming 3D printing device with position regulation and control of vibrating mirror system |
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| CN202310168385.1A CN116275135A (en) | 2023-02-24 | 2023-02-24 | Large-format laser selective melting forming 3D printing device with position regulation and control of vibrating mirror system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071795A (en) * | 2013-01-23 | 2013-05-01 | 西安铂力特激光成形技术有限公司 | Mobile galvanometer selective laser melting (SLM) forming device |
| CN109332697A (en) * | 2018-11-16 | 2019-02-15 | 汕头大学 | A kind of precinct laser fusion increasing material manufacturing equipment |
| US20190118259A1 (en) * | 2016-04-13 | 2019-04-25 | 3D New Technologies S.R.L. | High-productivity apparatus for additive manufacturing and method of additive manufacturing |
| WO2019085227A1 (en) * | 2017-11-03 | 2019-05-09 | 广东智维立体成型科技有限公司 | Device for 3d printing of metal |
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2023
- 2023-02-24 CN CN202310168385.1A patent/CN116275135A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071795A (en) * | 2013-01-23 | 2013-05-01 | 西安铂力特激光成形技术有限公司 | Mobile galvanometer selective laser melting (SLM) forming device |
| US20190118259A1 (en) * | 2016-04-13 | 2019-04-25 | 3D New Technologies S.R.L. | High-productivity apparatus for additive manufacturing and method of additive manufacturing |
| WO2019085227A1 (en) * | 2017-11-03 | 2019-05-09 | 广东智维立体成型科技有限公司 | Device for 3d printing of metal |
| CN109332697A (en) * | 2018-11-16 | 2019-02-15 | 汕头大学 | A kind of precinct laser fusion increasing material manufacturing equipment |
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