CN109986783B - Trace feeding and forming device and method for embedding of selective melting additive manufacturing equipment - Google Patents

Trace feeding and forming device and method for embedding of selective melting additive manufacturing equipment Download PDF

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CN109986783B
CN109986783B CN201910258198.6A CN201910258198A CN109986783B CN 109986783 B CN109986783 B CN 109986783B CN 201910258198 A CN201910258198 A CN 201910258198A CN 109986783 B CN109986783 B CN 109986783B
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additive manufacturing
cylinder
feeding
manufacturing equipment
selective melting
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CN109986783A (en
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汤金钢
赵庄
马绍兴
黄文�
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Institute of Mechanical Manufacturing Technology of CAEP
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Institute of Mechanical Manufacturing Technology of CAEP
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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]
    • 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
    • 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
    • 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
    • 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
    • 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
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/307—Handling of material to be used in additive manufacturing
    • B29C64/321—Feeding
    • 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
    • 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
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
    • 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)
  • Optics & Photonics (AREA)
  • Analytical Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a micro-feeding and forming device embedded in selective melting additive manufacturing equipment, wherein a transmission system comprises a linear module A, a linear module B, a fixed connecting plate A and a fixed connecting plate B; the main body frame structure comprises a lower substrate, an upper substrate, a forming cylinder A, a plunger B, a feeding cylinder A, a plunger A and a receiving cylinder; the plunger B is arranged in the forming cylinder A and moves along the axis of the forming cylinder A; the plunger A is arranged in the feeding cylinder A and moves along the axis of the feeding cylinder A. The invention also discloses a micro-feeding and forming method for embedding the selective melting additive manufacturing equipment. The micro-feeding and forming device and the micro-feeding and forming method for embedding the selective melting additive manufacturing equipment do not need to arrange a special mounting interface on the bed body of the additive manufacturing equipment or to modify the bed body of the additive manufacturing equipment, so that the device and the method can be suitable for all commercial selective laser additive melting additive manufacturing equipment, and the additive cost when smaller parts are printed is greatly reduced.

Description

Trace feeding and forming device and method for embedding of selective melting additive manufacturing equipment
Technical Field
The invention relates to the technical field of selective melting additive manufacturing, in particular to a trace feeding and forming device and a trace feeding and forming method for embedding of selective melting additive manufacturing equipment.
Background
The selective melting additive manufacturing technology is one of the existing mature additive manufacturing technologies, has the characteristics of high forming precision, excellent surface quality and the like, can be used for manufacturing parts in the fields of aviation, aerospace, ships, automobiles, energy sources, chemical engineering, medical treatment and the like, has wide application prospect and huge market, and has huge demand on selective laser melting additive manufacturing equipment and huge number of users. The feeding cylinder of the current commercial selective melting additive manufacturing equipment has a certain size and has the defect that the powder material consumption is not adjustable. To enable additive manufacturing of larger size structural members, selective melting additive manufacturing equipment is often configured with larger size feed and forming cylinders. When the feeding cylinder and the forming cylinder are of a certain size, the feeding cylinder with a larger size needs more sintering powder to perform additive manufacturing. This can increase the cost of additive manufacturing, especially when developing processes for printing small parts, processes and powders, which is a particular problem.
A patent application published in the chinese patent document library and entitled "a bed structure of a laser additive manufacturing equipment capable of micro-feeding" (CN205183785U) discloses a bed structure of a laser additive manufacturing equipment capable of micro-feeding. However, this structure requires the bed of the additive manufacturing apparatus to have a mounting interface, or requires modification of the bed of the additive manufacturing apparatus, and is not suitable for all commercial selective laser additive melting additive manufacturing apparatuses.
Disclosure of Invention
The invention aims to solve the technical problems that in the prior art, when smaller parts are printed, additive manufacturing can be carried out only by using more sintered powder, so that the additive manufacturing cost is increased, and the invention aims to provide a trace feeding and forming device and a trace feeding and forming method for embedding of selective melting additive manufacturing equipment, so as to solve the problems.
The invention is realized by the following technical scheme:
the micro-feeding and forming device embedded in the selective melting additive manufacturing equipment comprises a main body frame structure and a transmission system; the transmission system comprises a linear module A, a linear module B, a fixed connecting plate A and a fixed connecting plate B; the main body frame structure comprises a lower substrate, an upper substrate, a forming cylinder A, a plunger B, a feeding cylinder A, a plunger A and a receiving cylinder; the plunger B is arranged in the forming cylinder A and moves along the axis of the forming cylinder A; the plunger A is arranged in the feeding cylinder A and moves along the axis of the feeding cylinder A;
the lower substrate and the upper substrate are arranged oppositely, the forming cylinder A is arranged between the lower substrate and the upper substrate, the forming cylinder A is fixedly connected to the lower bottom of the upper substrate, and the plunger B is fixedly connected to the upper top of the lower substrate; the feeding cylinder A is arranged between the lower substrate and the upper substrate and is fixedly connected to the lower bottom of the upper substrate; the material receiving cylinder is arranged between the lower substrate and the upper substrate and is fixedly connected to the lower bottom of the upper substrate;
the linear module B comprises a moving part B and a fixed part B, and the linear module A comprises a moving part A and a fixed part A; the moving part B moves on the fixed part B, and the moving part A moves on the fixed part A; the fixed part B is fixedly arranged on the lower substrate, and the moving part B is connected to the upper substrate through a fixed connecting plate B; the fixed part A is fixed on the upper substrate or the lower substrate, and the moving part A is connected with the plunger A through a fixed connecting plate A;
the moving part A drives the plunger A to move up and down in the feeding cylinder A through the fixed connecting plate A, and the moving part B drives the upper base plate to move up and down through the fixed connecting plate B.
When the invention is applied, the fixing part A is fixed on the upper substrate or the lower substrate and can be arranged according to different requirements of users, different arrangement modes can correspond to different control processes, but the principle of the whole device is not changed. For the linear module a and the linear module B, the fixed part a and the fixed part B may be various devices that can be used for the movement of the moving part a and the moving part B, such as a slide rail, a guide rail, a slide groove, etc., and the moving part a and the moving part B may adopt a servo motor, a stepping motor, etc., which can be used for components that move on the fixed part a and the fixed part B.
When the small parts need to be subjected to additive manufacturing, the method is placed in a laser melting space of the selective melting additive manufacturing equipment, namely a forming cylinder of the selective melting additive manufacturing equipment, and then the additive manufacturing is started. Parts needing material increase are placed in the forming cylinder A, powder for melting is added in the feeding cylinder A, the plunger A in the feeding cylinder A is adjusted by the moving part A of the linear module A, and the upper surface of the powder in the feeding cylinder A is higher than that of the upper substrate, so that the powder can be conveniently moved by the scraper. And then adjusting the height of the upper substrate through the moving part B of the linear module B to enable the upper surface of the upper substrate to be flush with or lower than the upper surface of the plunger B in the forming cylinder A to perform initial additive positioning.
And then starting laser melting additive manufacturing, when a scraper of the selective melting additive manufacturing equipment moves to the position above a feeding cylinder B of the selective melting additive manufacturing equipment, the upper substrate and a forming cylinder A are lifted through a moving part B of a linear module B, the lifting height is equal to the thickness of a single-layer manufactured by additive manufacturing, a plunger A in the feeding cylinder A is lifted through the moving part A of the linear module A, and the lifting height is 1-3 times of the thickness of the single-layer manufactured by additive manufacturing until additive manufacturing is completed.
By the aid of the structure, a special mounting interface is not required to be arranged on the bed of the additive manufacturing equipment, and the bed of the additive manufacturing equipment is not required to be modified, so that the laser additive manufacturing equipment is suitable for laser additive melting additive manufacturing equipment in all commercial selected areas, and additive cost is greatly reduced when smaller parts are printed.
Furthermore, the device also comprises a control system arranged on the main body frame structure; the control system comprises a sensing sensor, a controller and a limit switch;
the perception sensor detects an external trigger signal and sends the trigger signal to the controller, the controller controls the movement of the movement part A and the movement part B, and the limit switch is fixed on the upper substrate.
When the invention is applied, the limit switch is used for limiting the height position of the upper substrate relative to the laser equipment in the selected area, and in order to carry out the automatic control of the invention, the inventor adopts a sensing sensor and a controller, wherein the sensing sensor detects an external trigger signal, the trigger signal is generally a trigger signal for the operation of a scraper in the material adding process, and the controller controls the movement of the movement part A and the movement part B according to the trigger signal.
Further, the power supply system is arranged on the main body frame structure; the power supply system comprises a power supply management module and a battery; the battery provides electric power for the whole device, and the power management module has voltage stabilization, protection, charging and electric quantity display functions on the battery.
Further, when the upper base plate moves downwards to the lowest position, the upper top surface of the upper base plate is higher than the upper end surface of the plunger A in the feeding cylinder A, and the upper top surface of the upper base plate is lower than the upper end surface of the plunger B in the forming cylinder A.
When the feeding cylinder A is used, when the upper base plate moves downwards to the lowest position, in order to ensure that the plunger A does not influence a scraper and ensure the use safety, the upper top surface of the upper base plate is higher than the upper end surface of the plunger A in the feeding cylinder A, and in order to ensure that parts are more convenient to take down after the material increase is finished, the upper top surface of the upper base plate is lower than the upper end surface of the plunger B in the forming cylinder A.
Further, felt sealing is adopted between the forming cylinder A and the plunger B, and felt sealing is adopted between the feeding cylinder A and the plunger A.
Furthermore, the lower substrate is provided with a through hole matched with a substrate mounting interface of the selective melting additive manufacturing equipment, and the lower substrate can be fixedly mounted on the substrate of the selective melting additive manufacturing equipment through the through hole and a screw.
The selective melting additive manufacturing equipment is embedded with a feeding and forming method, and comprises a forming cylinder BB and a feeding cylinder B; the method comprises the following steps:
s1: lifting a reference platform in a forming cylinder B of selective melting additive manufacturing equipment to the upper end of the forming cylinder B, and mounting the selective melting additive manufacturing equipment in the forming cylinder B by using a trace feeding and forming device in an embedded manner;
s2: the height of the upper substrate is adjusted through the motion part B of the linear module B, and the upper surface of the upper substrate is flush with or lower than the upper surface of the plunger B in the forming cylinder A;
s3: adding selective melting powder into a feeding cylinder A, and adjusting a plunger A in the feeding cylinder A by using a moving part A of a linear module A to enable the upper surface of the powder in the feeding cylinder A to be higher than the upper surface of an upper substrate;
s4: and starting laser melting additive manufacturing, wherein when a scraper of the selective melting additive manufacturing equipment moves to the position above a feeding cylinder B of the selective melting additive manufacturing equipment, the upper base plate and the forming cylinder A are lifted by a moving part B of a linear module B, the lifting height is the thickness of a single-layer to be manufactured in an additive manufacturing mode, and a plunger A in the feeding cylinder A is lifted by the moving part A of the linear module A, and the lifting height is 1-3 times of the thickness of the single-layer to be manufactured in an additive manufacturing mode.
Furthermore, the micro-feeding and forming device embedded in the selective melting additive manufacturing equipment further comprises a sensing sensor and a controller which are arranged on the main body frame structure; step S4 includes the following substeps: when the perception sensor detects a scraper of selective melting additive manufacturing equipment, a trigger signal is sent to the controller, and the controller controls the movement of the movement part B and the movement part A;
furthermore, the micro-feeding and forming device for embedding in the selective melting additive manufacturing equipment further comprises a limit switch arranged on the main body frame structure, and the limit switch is used for limiting the height position of the upper substrate relative to the selective laser equipment.
Furthermore, the lower substrate is provided with a through hole matched with a substrate mounting interface of the selective melting additive manufacturing equipment, and the selective melting additive manufacturing equipment is embedded with a trace feeding and forming device and is mounted in the forming cylinder B through the through hole.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the micro-feeding and forming device and the micro-feeding and forming method for embedding the selective melting additive manufacturing equipment do not need to arrange a special mounting interface on the bed body of the additive manufacturing equipment or to modify the bed body of the additive manufacturing equipment, so that the device and the method can be suitable for all commercial selective laser additive melting additive manufacturing equipment, and the additive cost when smaller parts are printed is greatly reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of an embodiment of the present invention;
FIG. 2 is a schematic diagram of an embodiment of the present invention.
Reference numbers and corresponding part names in the drawings:
1-lower substrate, 2-fixed connecting plate A, 3-linear module A, 4-upper substrate, 5-plunger A, 6-feeding cylinder A, 7-plunger B, 8-forming cylinder A, 9-fixed connecting plate B, 10-linear module B, 11-power management module, 12-receiving cylinder, 13-sensing sensor, 14-controller, 15-battery and 16-limit switch.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
The invention relates to a micro-feeding and forming device embedded in selective melting additive manufacturing equipment, which comprises a main body frame structure and a transmission system; the transmission system comprises a linear module A3, a linear module B10, a fixed connecting plate A2 and a fixed connecting plate B9; the main body frame structure comprises a lower base plate 1, an upper base plate 4, a forming cylinder A8, a plunger B7, a feeding cylinder A6, a plunger A5 and a receiving cylinder 12; the plunger B7 is arranged in the forming cylinder A8 and moves along the axis of the forming cylinder A8; the plunger A5 is arranged in the feeding cylinder A6 and moves along the axis of the feeding cylinder A6; the lower substrate 1 and the upper substrate 4 are oppositely arranged, the forming cylinder A8 is arranged between the lower substrate 1 and the upper substrate 4, the forming cylinder A8 is fixedly connected to the lower bottom of the upper substrate 4, and the plunger B7 is fixedly connected to the upper top of the lower substrate 1; the feeding cylinder A6 is arranged between the lower substrate 1 and the upper substrate 4, and the feeding cylinder A6 is fixedly connected to the lower bottom of the upper substrate 4; the material receiving cylinder 12 is arranged between the lower substrate 1 and the upper substrate 4, and the material receiving cylinder 12 is fixedly connected to the lower bottom of the upper substrate 4; the linear module B10 comprises a moving part B and a fixed part B, and the linear module A3 comprises a moving part A and a fixed part A; the fixed part B is fixedly arranged on the lower substrate 1, and the moving part B is connected to the upper substrate 4 through a fixed connecting plate B9; the fixed part A is fixed on the upper substrate 4 or the lower substrate 1, and the moving part A is connected with a plunger A5 through a fixed connecting plate A2; the moving part A drives the plunger A5 to move up and down in the feeding cylinder A6 through the fixed connecting plate A2, and the moving part B drives the upper base plate 4 to move up and down through the fixed connecting plate B9.
In the embodiment, the fixing portion a fixed on the upper substrate or the lower substrate can be set according to different needs of a user, as shown in fig. 1, the fixing portion a is connected to the upper substrate 4, and as another embodiment, as shown in fig. 2, the fixing portion a is connected to the lower substrate 1; different arrangements may correspond to different control processes, but the principle of the entire device is not changed. For the linear module a3 and the linear module B10, the fixed part a and the fixed part B may be various devices that can be used for the movement of the moving part a and the moving part B, such as a slide rail, a guide rail, a slide groove, etc., and the moving part a and the moving part B may adopt components that can be used for the movement on the fixed part a and the fixed part B, such as a servo motor, a stepping motor, etc., and the control and combination modes of these components are well-established in the prior art, so the description is not repeated here.
When the small parts need to be subjected to additive manufacturing, the method is placed in a laser melting space of the selective melting additive manufacturing equipment, namely a forming cylinder of the selective melting additive manufacturing equipment, and then the additive manufacturing is started. Parts needing material addition are placed in the forming cylinder A8, powder for melting is added into the feeding cylinder A6, the plunger A5 in the feeding cylinder A6 is adjusted by the moving part A of the linear module A3, so that the upper surface of the powder in the feeding cylinder A6 is higher than the upper surface of the upper substrate 4, and powder movement can be conveniently carried out by a scraper. The initial additive positioning is then performed by adjusting the height of the upper base plate 4 by the moving part B of the linear die set B10 such that the upper surface of the upper base plate 4 is flush with or below the upper surface of the plunger B7 in the forming cylinder a 8.
And then starting laser melting additive manufacturing, when a scraper of the selective melting additive manufacturing equipment moves to the position above a feeding cylinder B of the selective melting additive manufacturing equipment, the upper base plate 4 and the forming cylinder A8 are lifted by a moving part B of a linear module B10, the lifting height is the thickness of a single-layer to be manufactured in an additive manufacturing mode, a plunger B7 in the feeding cylinder A6 is lifted by a moving part A of a linear module A3, and the lifting height is 1-3 times of the thickness of the single-layer to be manufactured in an additive manufacturing mode until the additive manufacturing is completed.
The motion part in the linear module A3 and the linear module B10 can be a servo motor or a stepping motor, the motion part and the fixed part can be linearly connected, deflected by 90 degrees, arranged on the left side, arranged on the right side and arranged on the lower side, and the right of the patent is not influenced by the type selection of the motion part and the spatial arrangement of the motion part relative to the fixed part.
The linear module A3 can be fixed on the lower side of the upper substrate 4 or the lower substrate 1, and the change of the fixed position of the linear module A3 does not affect the right of the patent;
the linear die set A3 and the linear die set B10 can be positioned at the left side, the right side, the front side and the rear side of the forming cylinder A8 and the feeding cylinder A6, and the right of the patent is not influenced by the change of the spatial positions of the linear die set A3 and the linear die set B10 relative to the forming cylinder A8 and the feeding cylinder A6;
the feeding cylinder A6, the forming cylinder A8 and the receiving cylinder 12 can be positioned at the left side, the right side, the front side and the rear side of the upper base plate 4, and the right of the patent is not influenced by the change of the spatial positions of the feeding cylinder A6, the forming cylinder A8 and the receiving cylinder 12;
the perception sensor 13 can be positioned on the left side, the right side, the front side and the rear side of the upper substrate 4, and the right of the patent is not influenced by the change of the spatial position of the perception sensor 13;
the controller 14, the power management module 11 and the battery 15 can be positioned at the left side, the right side, the front side and the rear side between the upper substrate and the lower substrate, and the change of the spatial positions of the controller 14, the power management module 11 and the battery 15 does not influence the right of the patent;
the right of the patent is not influenced by the arrangement of the supporting structure between the upper substrate 4 and the lower substrate 1;
the feeding cylinder 6, the forming cylinder 8, the linear module A3 and the linear module B10 influence the right of the patent due to the change of space according to the position;
the battery 15, the power management module 11 and the controller 14 are arranged between the lower substrate 1 and the upper substrate 4 to form closed-loop control and power supply;
the plunger A5 and the plunger B7 can be square, round, semicircular and the like, and do not depend on the shapes of the plunger A5 and the plunger B7, which is the right of the patent.
To further illustrate the working condition of the present embodiment, the present embodiment further includes a control system disposed on the main frame structure; the control system comprises a perception sensor 13, a controller 14 and a limit switch 16;
the sensor 13 detects an external trigger signal and transmits the trigger signal to the controller 14, the controller 14 controls the movement of the moving part a and the moving part B, and the limit switch 16 is fixed on the upper substrate 4.
The limit switch 16 is used to limit the height position of the upper substrate 4 relative to the laser device in the selected area, and for the purpose of automatic control of the present invention, the inventor adopts the sensing sensor 13 and the controller 14, the sensing sensor 13 detects an external trigger signal, the trigger signal is generally a trigger signal of the scraper operation in the material adding process, and the controller 14 controls the movement of the moving part a and the moving part B according to the trigger signal.
To further illustrate the power supply situation of the present embodiment, the present embodiment further includes a power system disposed on the main frame structure; the power supply system comprises a power supply management module 11 and a battery 15; the battery 15 provides power to the whole device, and the power management module 11 performs voltage stabilization, protection, charging and power display functions on the battery 15.
In order to further realize the use function, in the embodiment, when the upper base plate 4 moves down to the lowest position, the upper top surface of the upper base plate 4 is higher than the upper end surface of the plunger a5 in the supply cylinder a6, and the upper top surface of the upper base plate 4 is lower than the upper end surface of the plunger B7 in the forming cylinder A8.
When the upper base plate 4 moves downwards to the lowest position, in order to ensure that the plunger A5 does not affect the scraper and ensure the use safety, the upper top surface of the upper base plate 4 is higher than the upper end surface of the plunger A5 in the feeding cylinder A6, and in order to ensure that parts are more convenient to take down after the material adding is finished, the upper top surface of the upper base plate 4 is lower than the upper end surface of the plunger B7 in the forming cylinder A8.
In order to further explain the sealing condition of the present embodiment, in the present embodiment, felt is used for sealing between the forming cylinder A8 and the plunger B7, and felt is used for sealing between the feeding cylinder a6 and the plunger a 5.
In order to further explain the installation manner of the embodiment, in the embodiment, the lower substrate 1 is provided with a through hole matching with the substrate installation interface of the selective melting additive manufacturing apparatus, and the lower substrate 1 may be fixedly installed on the substrate of the selective melting additive manufacturing apparatus through the through hole and a screw.
The invention relates to a feeding and forming method for embedding of selective melting additive manufacturing equipment, which comprises a forming cylinder BB and a feeding cylinder B; the method comprises the following steps: s1: lifting a reference platform in a forming cylinder B of selective melting additive manufacturing equipment to the upper end of the forming cylinder B, and mounting the selective melting additive manufacturing equipment in the forming cylinder B by using a trace feeding and forming device in an embedded manner; s2: the height of the upper base plate 4 is adjusted by the moving part B of the linear die set B10 until the upper surface of the upper base plate 4 is flush with or lower than the upper surface of the plunger B7 in the forming cylinder A8; s3: adding selective melting powder to a feed cylinder A6, and adjusting a plunger A5 in the feed cylinder A6 by using a moving part A of a linear die set A3 so that the upper surface of the powder in the feed cylinder A6 is higher than the upper surface of the upper substrate 4; s4: when the scraper of the selective melting additive manufacturing equipment moves to the position above the feeding cylinder B of the selective melting additive manufacturing equipment, the upper base plate 4 and the forming cylinder A8 are lifted by the moving part B of the linear die set B10 to reach the single-layer thickness of additive manufacturing, and the plunger A5 in the feeding cylinder A6 is lifted by the moving part A of the linear die set A3 to reach the height 1-3 times of the single-layer thickness of additive manufacturing.
In order to further automatically control the invention, the micro-feeding and forming device embedded in the selective melting additive manufacturing equipment further comprises a sensing sensor 13 and a controller 14 which are arranged on the main body frame structure; step S4 includes the following substeps: when the perception sensor 13 detects a scraper of the selective melting additive manufacturing equipment, a trigger signal is sent to the controller 14, and the controller 14 controls the movement of the movement part B and the movement part A.
In order to further improve the invention, the micro-feeding and forming device embedded in the selective melting additive manufacturing equipment further comprises a limit switch 16 arranged on the main body frame structure, and the limit switch 16 is used for limiting the height position of the upper substrate 4 relative to the selective laser equipment.
In order to facilitate installation, the lower substrate 1 is provided with a through hole matched with a substrate installation interface of selective melting additive manufacturing equipment, and the selective melting additive manufacturing equipment is embedded with a trace feeding and forming device and installed in the forming cylinder B through the through hole.
To further illustrate the working principle and the working state of the invention, when small parts are added, the complete steps are as follows:
a. turning on a power supply and a control system of the selective melting additive manufacturing equipment;
b. opening a cabin door of selective melting additive manufacturing equipment, lifting a reference platform in a forming cylinder of the selective melting additive manufacturing equipment to the upper end of the forming cylinder, and placing the selective melting additive manufacturing equipment in the forming cylinder of laser melting equipment by using a trace feeding and forming device in an embedded mode;
c. the selective melting additive manufacturing equipment is embedded in a micro-feeding and forming device by using the through hole on the lower substrate 1 and a screw to be fixed in a forming cylinder of the selective melting additive manufacturing equipment, and a limit switch 16 is installed and adjusted;
d. the controller 14 is used for adjusting the height of the upper base plate 4 through the linear module B10, so that the upper surface of the upper base plate 4 is flush with or slightly lower than the upper surface of the plunger B7 in the forming cylinder A8;
e. adding selective melting powder into the feeding cylinder 6, and adjusting a plunger A5 in the feeding cylinder 6 by using a linear module A3 to make the upper surface of the powder in the feeding cylinder 6 slightly higher than the upper surface of the upper substrate 4;
f. closing a forming cylinder B of selective melting additive manufacturing equipment, setting laser melting technological parameters, and starting laser melting additive manufacturing;
h. in the forming process, a sensor of the control system detects a scraper of selective melting additive manufacturing equipment, after the scraper returns to the position above a feeding cylinder of the selective melting additive manufacturing equipment, the upper substrate 4 and the forming cylinder A8 are lifted through a linear module B10, and the lifting height is the thickness of a single-layer manufactured by additive manufacturing; simultaneously, the plunger A5 in the feeding cylinder A6 is lifted by the linear module A10, and the lifting height is 1 to 3 times of the thickness of a single-layer manufactured by additive manufacturing;
i. after the selective melting additive manufacturing, taking out the selective melting additive manufacturing equipment by using a trace feeding and forming device to finish the laser melting additive manufacturing;
the feeding and forming method for the embedding of the selective melting additive manufacturing equipment does not influence the movement of the forming cylinder B and the feeding cylinder B of the selective melting additive manufacturing equipment.
The feeding cylinder A6, the forming cylinder A8 and the material receiving cylinder 12 are all placed in a forming cylinder B of the selective melting additive manufacturing equipment.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. The micro-feeding and forming device is embedded in selective melting additive manufacturing equipment and is characterized by comprising a main body frame structure and a transmission system; the transmission system comprises a linear module A (3), a linear module B (10), a fixed connecting plate A (2) and a fixed connecting plate B (9); the main body frame structure comprises a lower base plate (1), an upper base plate (4), a forming cylinder A (8), a plunger B (7), a feeding cylinder A (6), a plunger A (5) and a material receiving cylinder (12); the plunger B (7) is arranged in the forming cylinder A (8) and moves along the axis of the forming cylinder A (8); the plunger A (5) is arranged in the feeding cylinder A (6) and moves along the axis of the feeding cylinder A (6);
the lower substrate (1) and the upper substrate (4) are oppositely arranged, the forming cylinder A (8) is arranged between the lower substrate (1) and the upper substrate (4), the forming cylinder A (8) is fixedly connected to the lower bottom of the upper substrate (4), and the plunger B (7) is fixedly connected to the upper top of the lower substrate (1); the feeding cylinder A (6) is arranged between the lower substrate (1) and the upper substrate (4), and the feeding cylinder A (6) is fixedly connected to the lower bottom of the upper substrate (4); the material receiving cylinder (12) is arranged between the lower substrate (1) and the upper substrate (4), and the material receiving cylinder (12) is fixedly connected to the lower bottom of the upper substrate (4);
the linear module B (10) comprises a moving part B and a fixed part B, and the linear module A (3) comprises a moving part A and a fixed part A; the moving part B moves on the fixed part B, and the moving part A moves on the fixed part A; the fixed part B is fixedly arranged on the lower substrate (1), and the moving part B is connected to the upper substrate (4) through a fixed connecting plate B (9); the fixed part A is fixed on the upper substrate (4) or the lower substrate (1), and the moving part A is connected with the plunger A (5) through a fixed connecting plate A (2);
the moving part A drives the plunger A (5) to move up and down in the feeding cylinder A (6) through the fixed connecting plate A (2), and the moving part B drives the upper base plate (4) to move up and down through the fixed connecting plate B (9).
2. The apparatus of claim 1, further comprising a control system disposed on the frame structure of the body; the control system comprises a perception sensor (13), a controller (14) and a limit switch (16);
the perception sensor (13) detects an external trigger signal and sends the trigger signal to the controller (14), the controller (14) controls the movement of the movement part A and the movement part B, and the limit switch (16) is fixed on the upper substrate (4).
3. The apparatus of claim 2, further comprising a power system disposed on the frame structure of the body; the power supply system comprises a power supply management module (11) and a battery (15); the battery (15) provides power for the whole device, and the power management module (11) performs voltage stabilization, protection, charging and electric quantity display functions on the battery (15).
4. The micro feeding and forming device embedded in the selective melting additive manufacturing equipment according to claim 1, wherein when the upper base plate (4) moves downwards to the lowest position, the upper top surface of the upper base plate (4) is higher than the upper end surface of the plunger A (5) in the feeding cylinder A (6), and the upper top surface of the upper base plate (4) is lower than the upper end surface of the plunger B (7) in the forming cylinder A (8).
5. The micro-feeding and forming device embedded in the selective melting additive manufacturing equipment according to claim 1, wherein the forming cylinder (8) A and the plunger B (7) are sealed by felt, and the feeding cylinder A (6) and the plunger A (5) are sealed by felt.
6. The micro-feeding and forming device embedded in the selective melting additive manufacturing equipment according to claim 1, wherein the lower substrate (1) is provided with a through hole matched with a substrate mounting interface of the selective melting additive manufacturing equipment, and the lower substrate (1) can be fixedly mounted on the substrate of the selective melting additive manufacturing equipment through the through hole and a screw.
7. The micro-feeding and forming method embedded in the selective melting additive manufacturing equipment adopting the device of any one of claims 1-6 is characterized in that the selective melting additive manufacturing equipment comprises a forming cylinder B and a feeding cylinder B; the method comprises the following steps:
s1: lifting a reference platform in a forming cylinder B of selective melting additive manufacturing equipment to the upper end of the forming cylinder B, and mounting the selective melting additive manufacturing equipment in the forming cylinder B by using a trace feeding and forming device in an embedded manner;
s2: the height of the upper base plate (4) is adjusted through a moving part B of the linear module B (10) until the upper surface of the upper base plate (4) is flush with or lower than the upper surface of a plunger B (7) in a forming cylinder A (8);
s3: adding selective melting powder to a feeding cylinder A (6), and adjusting a plunger A (5) in the feeding cylinder A (6) by using a moving part A of a linear module A (3) to enable the upper surface of the powder in the feeding cylinder A (6) to be higher than the upper surface of an upper substrate (4);
s4: and starting laser melting additive manufacturing, when a scraper of the selective melting additive manufacturing equipment moves to the position above a feeding cylinder B of the selective melting additive manufacturing equipment, the upper substrate (4) and the forming cylinder A (8) are lifted by a moving part B of a linear module B (10) to reach the thickness of a single-layer to be additively manufactured, and a plunger A (3) in a feeding cylinder A (6) is lifted by a moving part A of a linear module A (3) to reach the height of 1-3 times of the thickness of the single-layer to be additively manufactured.
8. The micro-feeding and forming method embedded in the selective melting additive manufacturing equipment according to claim 7, wherein the micro-feeding and forming device embedded in the selective melting additive manufacturing equipment further comprises a sensing sensor (13) and a controller (14) arranged on the main frame structure; step S4 includes the following substeps:
when the perception sensor (13) detects a scraper of the selective melting additive manufacturing equipment, a trigger signal is sent to the controller (14), and the controller (14) controls the movement of the movement part B and the movement part A.
9. The micro-feeding and forming method embedded in the selective melting additive manufacturing equipment as claimed in claim 7, wherein the micro-feeding and forming device embedded in the selective melting additive manufacturing equipment further comprises a limit switch (16) arranged on the main frame structure, and the limit switch (16) is used for limiting the height position of the upper substrate (4) relative to the selective laser equipment.
10. The micro-feeding and forming method embedded in the selective melting additive manufacturing equipment as claimed in claim 7, wherein the lower substrate (1) is provided with a through hole matched with a substrate mounting interface of the selective melting additive manufacturing equipment, and the micro-feeding and forming device embedded in the selective melting additive manufacturing equipment is mounted in the forming cylinder B through the through hole.
CN201910258198.6A 2019-04-01 2019-04-01 Trace feeding and forming device and method for embedding of selective melting additive manufacturing equipment Active CN109986783B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102615281A (en) * 2012-04-09 2012-08-01 西安交通大学 Regional mobile light source scanning system for laser rapid prototyping technology
EP2871043A1 (en) * 2013-11-07 2015-05-13 Marcha Technology S.L. Horizontal feeder system for additive manufacturing devices
CN105196550A (en) * 2015-10-30 2015-12-30 兰红波 Multi-material multi-scale 3D (3-dimensional) printing device provided with single spray nozzle as well as working method of 3D printing device
CN105345002A (en) * 2015-12-08 2016-02-24 中国工程物理研究院机械制造工艺研究所 Lathe body structure of laser material additive manufacturing equipment capable of supplying materials in small-amount mode
CN108372300A (en) * 2017-01-04 2018-08-07 中国航空制造技术研究院 A kind of laser or electron beam selective melting subregion power spreading device and its method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102615281A (en) * 2012-04-09 2012-08-01 西安交通大学 Regional mobile light source scanning system for laser rapid prototyping technology
EP2871043A1 (en) * 2013-11-07 2015-05-13 Marcha Technology S.L. Horizontal feeder system for additive manufacturing devices
CN105196550A (en) * 2015-10-30 2015-12-30 兰红波 Multi-material multi-scale 3D (3-dimensional) printing device provided with single spray nozzle as well as working method of 3D printing device
CN105345002A (en) * 2015-12-08 2016-02-24 中国工程物理研究院机械制造工艺研究所 Lathe body structure of laser material additive manufacturing equipment capable of supplying materials in small-amount mode
CN108372300A (en) * 2017-01-04 2018-08-07 中国航空制造技术研究院 A kind of laser or electron beam selective melting subregion power spreading device and its method

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