CN112676564A - Special equipment for cleaning and taking out workpieces in 3D printer forming cylinder - Google Patents

Special equipment for cleaning and taking out workpieces in 3D printer forming cylinder Download PDF

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Publication number
CN112676564A
CN112676564A CN202011619098.0A CN202011619098A CN112676564A CN 112676564 A CN112676564 A CN 112676564A CN 202011619098 A CN202011619098 A CN 202011619098A CN 112676564 A CN112676564 A CN 112676564A
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cabin
forming cylinder
cylinder body
plate
taking
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CN202011619098.0A
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CN112676564B (en
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郭振华
徐大强
金帅
赵新民
关凯
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Tianjin Radium Laser Technology Co ltd
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Tianjin Radium Laser Technology Co ltd
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Abstract

The invention relates to special equipment for cleaning and taking out workpieces in a forming cylinder of a 3D printer, which comprises a forming cylinder body positioning mechanism, a pickup cabin moving mechanism, a pickup sealing cabin, a pickup cabin fixing mechanism, a spilled powder recovery mechanism, an inert gas replacement mechanism, a lifting mechanism and a supporting frame, wherein the pickup cabin moving mechanism is arranged on the forming cylinder body; the forming cylinder body positioning mechanism is arranged on the supporting frame and used for fixing the forming cylinder body; the part taking cabin moving mechanism is used for moving the part taking sealing cabin to the upper part of the forming cylinder body; the part taking cabin fixing mechanism is used for fixing the part taking sealed cabin on the forming cylinder body to form a closed system; the inert gas replacement mechanism is used for replacing the air in the closed system with inert gas; the lifting mechanism is used for lifting parts in the forming cylinder body; the overflowing powder recycling mechanism is used for recycling powder in the forming cylinder body. The invention solves the problems that the part with too large size after being molded can not be taken out from the molding chamber, and time and labor are wasted in cleaning the powder, realizes isolation of the powder, reduces powder pollution, and reduces the potential safety hazard of operators.

Description

Special equipment for cleaning and taking out workpieces in 3D printer forming cylinder
Technical Field
The invention belongs to the technical field of additive manufacturing, and particularly relates to special equipment for cleaning and taking out workpieces in a forming cylinder of a 3D printer.
Background
The additive manufacturing technology is based on three-dimensional CAD model data, and is characterized in that a material layer-by-layer manufacturing mode is added, a computer three-dimensional design model is used as a basis, the material is stacked layer by layer through a software layering dispersion and numerical control forming system by using a high-energy beam, and finally, the material is overlapped and formed to manufacture a solid product.
The SLM is a method for directly forming metal parts, and is the latest development of additive manufacturing technology. The technology is based on the most basic idea of rapid forming, namely an incremental manufacturing mode of layer-by-layer cladding, parts with specific geometric shapes are directly formed according to a three-dimensional CAD model, and metal powder is completely melted in the forming process to generate metallurgical bonding. The metal parts with complex shapes and structures, which can not be manufactured by the traditional machining means, are one of the main directions for applying the laser rapid prototyping technology.
In the equipment that adopts prior art, after the part printing, the vertical drive mechanism in the shaping jar slowly with part jack-up get into the shaping room, the shaping platform is jack-up gradually, and operating personnel clears up unnecessary powder on the part simultaneously, and final part is taken out by the shaping room hatch door. However, the opening of the door of the forming chamber is small, the powder cleaning operation space is small, and particularly when the workpiece is large in forming size, heavy in weight and large in powder amount, the workpiece cannot be taken out of the forming chamber, and the powder cannot be cleaned conveniently, so that time and labor are wasted.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides special equipment for cleaning and taking out workpieces in a forming cylinder of a 3D printer, and solves the problems that the parts cannot be taken out from a forming chamber due to too large size after the parts are formed at present, and time and labor are wasted in powder cleaning.
The invention is realized in this way, a 3D printer shaping cylinder workpiece clearance takes out the professional equipment, including shaping cylinder body positioning mechanism, get a cabin moving mechanism, get a sealed cabin, get a cabin fixed establishment, overflowed powder recovery mechanism, inert gas replacement mechanism, lifting mechanism and braced frame;
the forming cylinder body positioning mechanism is arranged on the supporting frame and used for fixing the forming cylinder body containing parts;
the part taking cabin moving mechanism is used for moving the part taking sealed cabin to the upper part of the forming cylinder body;
the part taking cabin fixing mechanism is used for fixing the part taking sealed cabin on the forming cylinder body, so that the part taking sealed cabin and the forming cylinder body form a closed system;
the inert gas replacement mechanism is used for replacing air in the closed system with inert gas;
the lifting mechanism is used for lifting parts in the forming cylinder body;
the overflowing powder recycling mechanism is connected with the forming cylinder body and used for recycling powder in the forming cylinder body.
Transferring the forming cylinder body containing the part to a forming cylinder body positioning mechanism through a transfer forklift for positioning and fixing, connecting the overflowing powder recovery mechanism with the forming cylinder body after the fixing is finished, dragging the part taking sealing cabin to move above the forming cylinder body through the part taking cabin moving mechanism, and fixing the part taking sealing cabin through the part taking cabin fixing mechanism; at the moment, a closed environment is formed in the whole system, the inert gas replacing mechanism replaces the air in the closed system with inert gas, then the parts in the forming cylinder are lifted through the lifting mechanism, and meanwhile, powder cleaning, part taking-out and other operations are carried out through the glove port of the part taking sealing cabin. The invention realizes the complete isolation of the cleaning powder, ensures the safety of operators and reduces the metal pollution.
In the above technical scheme, preferably, the forming cylinder positioning mechanism includes a cylinder positioning plate, a cylinder guide plate and a cylinder limiting plate, and the cylinder positioning plate is fixed on the support frame; the cylinder body guide plate is arranged on the cylinder body positioning plate and used for guiding the formed cylinder body when the formed cylinder body moves; the cylinder body limiting plate is positioned behind the cylinder body positioning plate and used for limiting the movement of the forming cylinder body; the cylinder body bottom plate of the forming cylinder body is fixed on the cylinder body positioning plate through the pressing fixing plate, so that the forming cylinder body is fixed above the cylinder body positioning plate.
In the above technical scheme, preferably, the pickup cabin moving mechanism includes an electric push rod, a bearing with a seat, a hinge seat and a cabin pressing connecting rod, one end of the electric push rod is connected with the supporting frame through the hinge seat, and the other end of the electric push rod is connected with the cabin pressing connecting rod to push the cabin pressing connecting rod to rotate so as to drive the pickup sealing cabin to move to the top of the forming cylinder; and two ends of the cabin pressing connecting rod are respectively connected with the supporting frame and the part taking sealing cabin through a bearing with a seat.
In the above technical scheme, it is further preferred that the support frame is further provided with a limiting support, the top of the limiting support is provided with a limiting block, and the limiting block is used for supporting and limiting the taking-part sealing cabin after the taking-part sealing cabin is separated from the working position.
In the above technical solution, preferably, the part taking sealing cabin comprises a cabin body, a cabin bottom plate, an observation window, an operation glove port, an illuminating lamp and an oxygen content sensor, wherein the cabin body is located above the cabin bottom plate, and the cabin bottom plate is connected with a bearing with a seat at one end of a cabin pressing connecting rod to realize the movement of the cabin; the observation window and the illuminating lamp are positioned on the upper portion of the cabin body, the operation glove port is positioned on the lower portion of the cabin body, and the oxygen content sensor is positioned on the top of the cabin body.
In the above technical scheme, preferably, get a cabin fixed establishment and include pneumatic clamp, pneumatic clamp installs and gets a sealed cabin below for get a sealed cabin and shaping cylinder body roof sealing connection is fixed, realizes sealed environment.
In the above technical scheme, preferably, the overflow powder recovery mechanism includes a forming cylinder powder receiving funnel, a manual butterfly valve, a vacuum hose, and an overflow powder recovery barrel, the forming cylinder powder receiving funnel is mounted on a top plate of the forming cylinder body, the bottom of the forming cylinder powder receiving funnel is connected with the manual butterfly valve, and the manual butterfly valve is connected with the overflow powder recovery barrel through the vacuum hose.
In the above technical solution, preferably, the inert gas replacement mechanism includes an inert gas source, a gas replacement inlet and a gas replacement outlet, the gas replacement inlet and the gas replacement outlet are respectively disposed behind and above the part taking sealing cabin, and a tail gas filtering mechanism is disposed at a tail end of the gas replacement outlet.
In the above technical scheme, it is preferred, lifting mechanism includes driving motor, speed reducer, ball, bearing frame, lifting plate, deflector, top dish, electromagnet, driving motor and speed reducer are fixed on the lifting plate, driving motor connects the speed reducer, the speed reducer is connected with the ball bottom, the ball bottom is installed in the bearing frame, the bearing frame is installed on the lifting plate, ball and the screw thread connection of installing on the deflector, the deflector is fixed on braced frame, ball's top is passed through the bearing and is linked to each other with the top dish, electromagnet is equipped with in the top dish.
In the above technical scheme, it is further preferred that guide shafts are arranged on two sides of the ball screw, a flanged linear bearing is arranged between the guide shafts and the top plate, and the guide shafts pass through the flanged linear bearing and are connected with the lifting plate and the top plate at two ends respectively.
The invention has the advantages and positive effects that:
according to the special equipment for cleaning and taking out the workpiece in the forming cylinder of the 3D printer, which is designed by the invention, the forming cylinder body is moved to the special equipment for taking out the part, so that the problems that the part cannot be taken out from a forming chamber due to too large size after the part is formed at present, and time and labor are wasted in powder cleaning are solved. Human powder isolation is realized when parts are cleaned and taken out, and powder pollution is reduced; in addition, because the amount of powder contacted by personnel is reduced, the potential safety hazard of operators is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a special device for cleaning and taking out a workpiece in a forming cylinder of a 3D printer, provided by an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a connection between a special device for cleaning and taking out a workpiece in a forming cylinder of a 3D printer and the forming cylinder provided by the embodiment of the invention;
FIG. 3 is a perspective view of a forming cylinder positioning mechanism provided by an embodiment of the present invention;
FIG. 4 is a front view of a forming cylinder positioning mechanism provided by an embodiment of the present invention;
fig. 5 is a perspective view of a lifting mechanism provided in an embodiment of the present invention.
In the figure: 10. a positioning mechanism for the forming cylinder body; 101. a cylinder positioning plate; 102. a cylinder guide plate; 103. a cylinder body limiting plate; 104. compressing the fixed plate;
20. a pickup cabin moving mechanism; 201. an electric push rod; 202. a pedestal bearing; 203. a hinge mount; 204. the cabin compresses the connecting rod; 205. a limiting bracket; 206. a limiting block;
30. taking a piece and sealing the cabin; 301. a cabin floor; 302. a cabin body; 303. an observation window; 304. operating a glove port; 305. an illuminating lamp; 306. an oxygen content sensor;
40. a pickup cabin fixing mechanism; 401. pneumatic clamps;
50. a spilled powder recovery mechanism; 501. a powder collecting funnel of the forming cylinder; 502. a manual butterfly valve; 503. KF50 vacuum hose; 504. a spilled powder recycling bin;
60. an inert gas displacement mechanism; 601. a gas displacement inlet; 602. a gas displacement outlet;
70. a lifting mechanism; 701. a drive motor; 702. a speed reducer; 703. a ball screw; 704. a bearing seat; 705. a lifting plate; 706. a guide plate; 707. a top tray; 708. an electromagnetic chuck; 709. a nut; 710. a guide shaft; 711. a flanged linear bearing;
80. a support frame;
90. forming a cylinder body; 901. forming a bottom plate of the cylinder body; 902. and forming a top plate of the cylinder body.
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 the accompanying drawings. It will be appreciated by those of skill in the art that the following specific examples or embodiments are illustrative of a series of preferred arrangements of the invention to further explain the principles of the invention, and that such arrangements may be used in conjunction or association with one another, unless it is explicitly stated that some or all of the specific examples or embodiments cannot be used in conjunction or association with other examples or embodiments in the invention. Meanwhile, the following specific examples or embodiments are only provided as an optimized arrangement mode and are not to be understood as limiting the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 5, the present embodiment provides a special apparatus for cleaning and taking out a workpiece in a forming cylinder of a 3D printer, including a forming cylinder positioning mechanism 10, a pickup compartment moving mechanism 20, a pickup sealing compartment 30, a pickup compartment fixing mechanism 40, an overflow powder recovery mechanism 50, an inert gas replacement mechanism 60, a lifting mechanism 70 and a supporting frame 80;
the forming cylinder positioning mechanism 10 is mounted on the supporting frame 80 and used for fixing a forming cylinder 90 containing parts;
the picking chamber moving mechanism 20 is used for moving the picking sealing chamber 30 to the upper part of the forming cylinder 90;
the part taking chamber fixing mechanism 40 is used for fixing the part taking sealed chamber 30 on the forming cylinder body 90, so that the part taking sealed chamber 30 and the forming cylinder body 90 form a closed system;
the inert gas replacement mechanism 60 is used for replacing the air in the closed system with inert gas;
the lifting mechanism 70 is used for lifting the parts in the forming cylinder 90;
the overflow powder recovery mechanism 50 is connected to the forming cylinder 90 for recovering the powder in the forming cylinder 90.
The forming cylinder body 90 containing the parts is transferred to the forming cylinder body positioning mechanism 10 through a transfer forklift for positioning and fixing, after the fixing is finished, the overflowing powder recovery mechanism 50 is connected with the forming cylinder body 90, the part taking sealing cabin 30 is dragged to move to the upper part of the forming cylinder body 90 through the part taking cabin moving mechanism 20, and the part taking sealing cabin 30 is fixed through the part taking cabin fixing mechanism 40; at this time, a closed environment is formed in the whole system, the inert gas replacement mechanism 60 replaces the air inside the closed system with inert gas, the lifting mechanism 70 lifts the parts inside the forming cylinder 90, and the powder cleaning, the part taking-out and the like are performed through the glove port of the part taking-out sealing chamber 30. The invention realizes the complete isolation of the cleaning powder, ensures the safety of operators and reduces the metal pollution.
The forming cylinder positioning mechanism 10 comprises a cylinder positioning plate 101, a cylinder guide plate 102 and a cylinder limiting plate 103, wherein the cylinder positioning plate 101 is fixed on the supporting frame 80; the cylinder guide plate 102 is mounted on the cylinder positioning plate 101 and used for guiding the forming cylinder 90 when moving; the cylinder body limiting plate 103 is positioned behind the cylinder body positioning plate 101 and used for limiting the movement of the forming cylinder body 90; the bottom plate 901 of the forming cylinder is fixed on the cylinder positioning plate 101 through the pressing fixing plate 104, so that the forming cylinder 90 is fixed above the cylinder positioning plate 101. The forming cylinder 90 is transported by a forklift and then moved to the forming cylinder positioning mechanism 10 through the guiding of the cylinder guide plate 102 and the limiting of the cylinder limiting plate 103, and the forming cylinder 90 is fixed by a pressing fixing plate 104. The functions of guiding, positioning and fixing when the cylinder body 90 is transferred and formed are realized.
The part taking cabin moving mechanism 20 comprises an electric push rod 201, a bearing 202 with a seat, a hinge seat 203 and a cabin pressing connecting rod 204, wherein one end of the electric push rod 201 is connected with the supporting frame 80 through the hinge seat 203, the other end of the electric push rod is connected with the cabin pressing connecting rod 204, and the cabin pressing connecting rod 204 is pushed to rotate so as to drive the part taking sealing cabin 30 to move to the top of the forming cylinder body 90; the two ends of the cabin pressing connecting rod 204 are respectively connected with the supporting frame 80 and the part taking sealing cabin 30 through the bearing 202 with a seat. In this embodiment, two electric push rods 201 and four cabin pressing connecting rods 204 are provided, and the electric push rod mechanism formed by the two electric push rods 201 pushes the link mechanism formed by the four cabin pressing connecting rods 204 to move the workpiece taking sealing cabin 30 to the top of the forming cylinder 90.
Preferably, the supporting frame 80 is further provided with a limiting bracket 205, the top of the limiting bracket 205 is provided with a limiting block 206, and the limiting block 206 is used for supporting and limiting the taking-out sealing cabin 30 after the taking-out sealing cabin 30 is separated from the working position.
The part taking sealing cabin 30 comprises a cabin bottom plate 301, a cabin body 302, an observation window 303, an operating glove opening 304, an illuminating lamp 305 and an oxygen content sensor 306, wherein the cabin bottom plate 301 is connected with a bearing 202 with a seat at one end of a cabin pressing connecting rod 204 to realize the cabin movement; the cabin body 302 is located above the cabin bottom plate 301, an observation window 303, an operating glove port 304, an illuminating lamp 305 and an oxygen content sensor 306 are arranged on the cabin body 302, the observation window 303 and the illuminating lamp 305 are located on the upper portion of the cabin body 302, the operating glove port 304 is located on the lower portion of the cabin body 302, and the oxygen content sensor 306 is located on the top portion of the cabin body 302.
The part taking cabin fixing mechanism 40 comprises a pneumatic clamp 401, and the pneumatic clamp 401 is installed below the part taking sealed cabin 30 and used for connecting and fixing the part taking sealed cabin 30 and a top plate 902 of a forming cylinder in a sealing mode to achieve a sealed environment.
The overflow powder recovery mechanism 50 comprises a forming cylinder powder receiving funnel 501, a manual butterfly valve 502, a KF50 vacuum hose 503 and an overflow powder recovery barrel 504, wherein the forming cylinder powder receiving funnel 501 is mounted on a top plate 902 of a forming cylinder body, the bottom of the forming cylinder powder receiving funnel 501 is connected with the manual butterfly valve 502, the manual butterfly valve 502 is connected with the overflow powder recovery barrel 504 through the KF50 vacuum hose 503, and the manual butterfly valve 502 is switched on and off to realize powder recovery.
The inert gas replacement mechanism 60 comprises an inert gas source, a gas replacement inlet 601 and a gas replacement outlet 602, wherein the gas replacement inlet 601 and the gas replacement outlet 602 are respectively arranged at the rear and above the part taking sealing chamber 30, and the tail end of the gas replacement outlet 602 is provided with a tail gas filtering mechanism. The oxygen content sensor 306 at the top of the part taking sealed cabin 30 monitors the oxygen content in the part taking sealed cabin 30 in real time, the rear side is ventilated, the top is ventilated to realize rapid and stable inert gas replacement, the replaced gas is exhausted to clean air through the tail gas filtering mechanism, the safe exhaust of tail gas is realized, and no pollution is caused, and the safety is ensured.
The lifting mechanism 70 comprises a driving motor 701, a speed reducer 702, a ball screw 703, a bearing seat 704, a lifting plate 705, a guide plate 706, a top plate 707 and an electromagnetic chuck 708, wherein the driving motor 701 and the speed reducer 702 are fixed on the lifting plate 705, the driving motor 701 is connected with the speed reducer 702, the speed reducer 702 is connected with the bottom end of the ball screw 703, the bottom end of the ball screw 703 is installed in the bearing seat 704, the bearing seat 704 is installed on the lifting plate 705, the ball screw 703 is in threaded connection with a nut 709 installed on the guide plate 706, the guide plate 706 is fixed on the support frame 80, the top end of the ball screw 703 is connected with the top plate 707 through a bearing, and the electromagnetic chuck 708 is installed in the top plate 707. The piston in the forming cylinder 90 is connected and fixed by the electromagnetic chuck 708.
Preferably, guide shafts 710 are arranged on two sides of the ball screw 703, a flanged linear bearing 711 is arranged between the guide shaft 710 and the top plate, and the guide shafts 710 penetrate through the flanged linear bearing 711 and are connected with the lifting plate 705 and the top plate 707 at two ends respectively.
The forming cylinder 90 is transported by a forklift and then moved to the forming cylinder positioning mechanism 10 by the guidance of the cylinder guide plate 102 and the limitation of the cylinder limiting plate 103, and the forming cylinder 90 is fixed by a pressing fixing plate 104. The overflow powder recovery pipeline is connected with the overflow powder discharge port of the forming cylinder body 90, the electric push rod 201 is controlled to move the piece taking sealing cabin 30 to the position right above the forming cylinder body 90 and then automatically stop moving, the piece taking cabin fixing mechanism 40 is controlled to hermetically connect the top plate of the forming cylinder body 90 with the piece taking sealing cabin 30, the rear part and the upper part of the piece taking sealing cabin 30 are started to work through the air inlet and outlet to carry out gas replacement, the inert gas atmosphere in the piece taking sealing cabin 30 is achieved, the powder is cleaned while parts in the forming cylinder body 90 are lifted through the lifting mechanism 70, and the forming cylinder body 90 is moved after cleaning is completed.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or some or all of the technical features may be equivalently replaced, and the modifications or the replacements may not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The utility model provides a workpiece clearance takes out professional equipment in 3D printer shaping jar which characterized in that: the device comprises a molding cylinder body positioning mechanism, a pickup cabin moving mechanism, a pickup sealing cabin, a pickup cabin fixing mechanism, a spilled powder recovery mechanism, an inert gas replacement mechanism, a lifting mechanism and a supporting frame;
the forming cylinder body positioning mechanism is arranged on the supporting frame and used for fixing the forming cylinder body containing parts;
the part taking cabin moving mechanism is used for moving the part taking sealed cabin to the upper part of the forming cylinder body;
the part taking cabin fixing mechanism is used for fixing the part taking sealed cabin on the forming cylinder body, so that the part taking sealed cabin and the forming cylinder body form a closed system;
the inert gas replacement mechanism is used for replacing air in the closed system with inert gas;
the lifting mechanism is used for lifting parts in the forming cylinder body;
the overflowing powder recycling mechanism is connected with the forming cylinder body and used for recycling powder in the forming cylinder body.
2. The special equipment for cleaning and taking out the workpieces in the forming cylinder of the 3D printer according to claim 1, wherein the forming cylinder positioning mechanism comprises a cylinder positioning plate, a cylinder guide plate and a cylinder limiting plate, and the cylinder positioning plate is fixed on a supporting frame; the cylinder body guide plate is arranged on the cylinder body positioning plate and used for guiding the formed cylinder body when the formed cylinder body moves; the cylinder body limiting plate is positioned behind the cylinder body positioning plate and used for limiting the movement of the forming cylinder body; the cylinder body bottom plate of the forming cylinder body is fixed on the cylinder body positioning plate through the pressing fixing plate, so that the forming cylinder body is fixed above the cylinder body positioning plate.
3. The special equipment for cleaning and taking out the workpieces in the forming cylinder of the 3D printer as claimed in claim 1, wherein the workpiece taking cabin moving mechanism comprises an electric push rod, a bearing with a seat, a hinge seat and a cabin pressing connecting rod, one end of the electric push rod is connected with the supporting frame through the hinge seat, the other end of the electric push rod is connected with the cabin pressing connecting rod, and the cabin pressing connecting rod is pushed to rotate so as to drive the workpiece taking sealing cabin to move to the top of the forming cylinder body; and two ends of the cabin pressing connecting rod are respectively connected with the supporting frame and the part taking sealing cabin through a bearing with a seat.
4. The special equipment for cleaning and taking out the workpiece in the forming cylinder of the 3D printer as claimed in claim 3, wherein the supporting frame is further provided with a limiting support, the top of the limiting support is provided with a limiting block, and the limiting block is used for supporting and limiting the part taking sealing cabin after the part taking sealing cabin is separated from the working position.
5. The special equipment for cleaning and taking out the workpieces in the forming cylinder of the 3D printer as claimed in claim 1, wherein the workpiece taking and sealing cabin comprises a cabin body, a cabin bottom plate, an observation window, an operation glove port, an illuminating lamp and an oxygen content sensor, the cabin body is positioned above the cabin bottom plate, and the cabin bottom plate is connected with a bearing with a seat at one end of a cabin pressing connecting rod to realize the movement of the cabin; the observation window and the illuminating lamp are positioned on the upper portion of the cabin body, the operation glove port is positioned on the lower portion of the cabin body, and the oxygen content sensor is positioned on the top of the cabin body.
6. The special equipment for cleaning and taking out the workpieces in the forming cylinder of the 3D printer as claimed in claim 1, wherein the workpiece taking cabin fixing mechanism comprises a pneumatic clamp, and the pneumatic clamp is installed below the workpiece taking sealing cabin and is used for connecting and fixing the workpiece taking sealing cabin and a top plate of a forming cylinder body in a sealing manner to achieve a sealed environment.
7. The special equipment for cleaning and taking out the workpieces in the forming cylinder of the 3D printer as claimed in claim 1, wherein the powder overflowing recovery mechanism comprises a forming cylinder powder collecting funnel, a manual butterfly valve, a vacuum hose and a powder overflowing recovery barrel, the forming cylinder powder collecting funnel is mounted on a top plate of a forming cylinder body, the bottom of the forming cylinder powder collecting funnel is connected with the manual butterfly valve, and the manual butterfly valve is connected with the powder overflowing recovery barrel through the vacuum hose.
8. The special equipment for cleaning and taking out the workpiece in the forming cylinder of the 3D printer as claimed in claim 1, wherein the inert gas replacement mechanism comprises an inert gas source, a gas replacement inlet and a gas replacement outlet, the gas replacement inlet and the gas replacement outlet are respectively arranged behind and above the workpiece taking sealing cabin, and a tail gas filtering mechanism is arranged at the tail end of the gas replacement outlet.
9. The special device for cleaning and taking out the workpiece in the 3D printer forming cylinder is characterized in that the lifting mechanism comprises a driving motor, a speed reducer, a ball screw, a bearing seat, a lifting plate, a guide plate, a top plate and an electromagnetic chuck, the driving motor and the speed reducer are fixed on the lifting plate, the driving motor is connected with the speed reducer, the speed reducer is connected with the bottom end of the ball screw, the bottom end of the ball screw is installed in the bearing seat, the bearing seat is installed on the lifting plate, the ball screw is in threaded connection with a nut installed on the guide plate, the guide plate is fixed on a supporting frame, the top end of the ball screw is connected with the top plate through a bearing, and the electromagnetic chuck is arranged in the top plate.
10. The special device for cleaning and taking out the workpiece in the forming cylinder of the 3D printer as claimed in claim 9, wherein guide shafts are arranged on two sides of the ball screw, a flanged linear bearing is arranged between the guide shafts and the top plate, the guide shafts penetrate through the flanged linear bearing, and two ends of the guide shafts are respectively connected with the lifting plate and the top plate.
CN202011619098.0A 2020-12-31 2020-12-31 Special equipment for cleaning and taking out workpieces in 3D printer forming cylinder Active CN112676564B (en)

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