A metal powder processing system for 3D printing equipment

Abstract

The present invention discloses a metal powder processing system for 3D printing equipment, including a dovetail column, a slide plate is slidably mounted on the outer wall of one side of the dovetail column, and an inverted U-shaped hanger is fixed on the outer wall of the side of the slide plate away from the dovetail column, and a T-seat is fixed at the corner position of the top wall of the inverted U-shaped hanger, and a four-track lifting guide structure is arranged between the four T-seats in the vertical direction, and the four T-seats are slidably mounted with a support ring through the four-track lifting guide structure. The Z-direction spline gear transmission structure of the present invention enables the air jet powder removal structure to rotate around the metal workpiece, thereby reducing the blind area of ​​the air jet, and the complex outer wall geometry of the workpiece can also be fully cleaned to ensure that each angle can meet the high standard of cleaning requirements. Compared with manual operation, it can greatly shorten the cleaning time and greatly reduce the time cost of the later processing of the metal workpiece.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing equipment, and in particular to a metal powder processing system for 3D printing equipment. Background Art

[0002] 3D printing equipment achieves customized manufacturing of complex metal parts by melting and solidifying metal powder layer by layer. Its basic structure includes a build chamber, a powder supply system, a laser or electron beam emission system, a build platform and a control system. During operation, the build platform is first covered with a layer of metal powder, and then the laser or electron beam accurately melts the powder according to the preset CAD model to form a layer of solid. Subsequently, the build platform descends and the above steps are repeated until the part is completed. This technology can not only manufacture parts with complex geometric shapes, but also respond quickly to market demand and reduce manufacturing costs. At present, most 3D printing equipment uses spherical metal powder as raw material, selectively melts the powder through a concentrated heat source, and solidifies it in the subsequent cooling to form a print. The printed metal workpiece will have a certain amount of unsolidified metal powder on its outer wall and the inner wall of the cavity. These residual powders will have a negative impact on the mechanical properties and surface quality of the parts. At this time, the metal workpiece needs to be removed from the powder area of ​​the build chamber and the metal powder needs to be blown and removed in a closed cabin. That is, the staff uses Manually operate the air gun on the metal workpiece. Under the operation of the staff, the powder on the inner wall of the metal workpiece cavity can be cleared more thoroughly. However, manual blowing of metal powder is a very time-consuming task. The operator must carefully use the air gun or similar equipment to clean the surface and internal cavity of the printed metal workpiece one by one. Especially for parts with complex structures, the cleaning work may take several hours or even longer, which significantly increases the overall time cost of post-processing. Moreover, for metal workpieces of the same specifications, the manual cleaning process is affected by the skills and experience of the operator, and it is difficult to achieve a highly consistent cleaning effect. Summary of the invention

[0003] The purpose of the present invention is to provide a metal powder processing system for 3D printing equipment, which is arranged in a closed cabin structure and mainly performs rapid blowing off of metal powder remaining on the outer surface of a metal workpiece. A screw lifting module is used to control an array-type jet powder removal structure to move along the vertical direction of the metal workpiece and continuously blow powder. A rotary drive module and a Z-axis spline gear transmission structure drive the array-type jet powder removal structure to rotate around the metal workpiece to reduce the jet blind area. A telescopic rotary air intake assembly and a cam self-resetting vibration assembly cause the array-type jet powder removal structure to vibrate reciprocatingly to extend the jet path of the array-type jet powder removal structure on the metal workpiece, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a metal powder processing system for 3D printing equipment, comprising:

[0005] A dovetail column, a slide plate is slidably mounted on the outer wall of one side of the dovetail column, and an inverted U-shaped hanger is fixed on the outer wall of the side of the slide plate away from the dovetail column, a T-seat is fixed at the corner position of the top wall of the inverted U-shaped hanger, a four-track lifting guide structure is arranged between the four T-seats in the vertical direction, a support ring is slidably mounted on the four T-seats through the four-track lifting guide structure, and a Z-direction spline gear transmission structure is installed on the bottom end of the support ring, a hollow air disk is installed on the rotating end of the Z-direction spline gear transmission structure, an array-type jet powder removal structure for forming multiple jet areas is arranged on the lower surface of the hollow air disk, a telescopic rotating air intake component for keeping the air path with the hollow air disk unobstructed is installed on the top wall of the inverted U-shaped hanger, and a screw lifting module for controlling the vertical lifting of the slide plate is installed inside the dovetail column;

[0006] A driven shaft is rotatably mounted on an outer wall of one side of the inverted U-shaped hanger, one end of the driven shaft extends to the interior of the inverted U-shaped hanger and is provided with a self-resetting vibration component for driving a support ring to lift and reciprocate in a vertical direction with a cam, a rotation drive module for driving the driven shaft and a Z-axis spline gear transmission structure to rotate is installed on an outer wall of one side of the inverted U-shaped hanger, and a PLC control panel for electrically connecting to a screw lifting module and an input end of the rotation drive module is installed on the outer wall of the other side of the dovetail column.

[0007] Preferably, the Z-direction spline gear transmission structure includes a rectangular convex plate integrally formed on the outer wall of one side of a support ring, an internal spline shaft rotatably installed inside the rectangular convex plate, an external spline shaft installed at the output end of the rotary drive module, and a driving gear fixed at the bottom end of the internal spline shaft, an external gear ring with a cross is rotatably installed at the bottom end of the support ring, the external gear ring and the driving gear are meshed with each other, the bottom end of the external spline shaft extends to the interior of the internal spline shaft, and the hollow air disk is fixed at the bottom end of the external gear ring.

[0008] Preferably, the telescopic rotating air intake assembly includes a U-shaped sheet metal fixed at the center position of the top wall of the inverted U-shaped hanger, an air intake main pipe rotatably installed inside the U-shaped sheet metal, and an external spline air intake pipe installed at the bottom end of the air intake main pipe, and an internal spline air intake pipe coaxial with the external spline air intake pipe is installed at the center position of the top end of the hollow air disk, and the bottom end of the external spline air intake pipe extends to the interior of the internal spline air intake pipe.

[0009] Preferably, a rotary joint is installed at the top end of the air intake main pipe, and a corrugated hose is installed at one end of the rotary joint away from the air intake main pipe.

[0010] Preferably, the four-track lifting guide structure includes a dovetail sleeve fixed on the outer wall of one side of the T-seat and a dovetail guide rail slidably installed inside the dovetail sleeve. The bottom end of the dovetail guide rail is fixedly connected to the top end of the support ring, and the power transmission between the external spline shaft and the driven shaft is maintained through a rotating drive module.

[0011] Preferably, the cam self-resetting vibration assembly includes a T-arm fixed on the outer wall of one side of one of the dovetail guide rails, an arc-shaped upper protrusion integrally formed at the top of the T-arm, and a cam unit fixed at one end of the driven shaft. The cam self-resetting vibration assembly also includes a hydraulic damper installed on the inner wall of one side of the inverted U-shaped hanger, and the top of the piston rod of the hydraulic damper is connected to the outer wall of one side of the T-arm through a convex shaft and a flat-mouth joint.

[0012] Preferably, the rotation drive module includes a stepper motor installed on the outer wall of one side of the support ring, a coupling installed at the output end of the stepper motor, and a bevel gear transmission and a pulley transmission for connecting the driven shaft, and the bottom end of the coupling is fixedly connected to the top end of the external spline shaft.

[0013] Preferably, the bevel gear transmission member includes a longitudinal axis installed on the outer wall of one side of the inverted U-shaped hanger, a driven bevel gear installed at one end of the longitudinal axis surface, and an active bevel gear fixed on one end of the coupling surface, and the active bevel gear and the driven bevel gear are meshed with each other.

[0014] Preferably, the array-type jet powder removal structure includes a plurality of manual control valves installed at the bottom of the hollow air disk at equal intervals in a ring shape, an exhaust straight pipe installed at the air outlet end of the manual control valve, a curved pipe installed on the outer wall of one side of the exhaust straight pipe, and a nozzle installed at the bottom of the nozzle.

[0015] Preferably, the curved pipe gradually bends and extends from one end close to the exhaust straight pipe to the other end toward the vertical center line of the hollow air disk.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the metal powder processing system for 3D printing equipment is provided with an array-type jet powder removal structure and a cam self-resetting vibration component and other structures that cooperate with each other. The screw lifting module and the array-type jet powder removal structure enable the jet end to move along the vertical direction of the metal workpiece. Through precise control, the system can ensure that the entire surface can be thoroughly cleaned without dead corners or missed areas, and the Z-axis spline gear transmission structure enables the jet powder removal structure to rotate around the metal workpiece, thereby reducing the blind area of ​​the jet. The complex outer wall geometry of the workpiece can also be fully cleaned to ensure that each angle can meet high standards of cleaning requirements. Compared with manual operation, it can greatly shorten the cleaning time, greatly reduce the time cost of post-processing of metal workpieces, and ensure that the cleaning quality of each workpiece is highly consistent, reducing the differences caused by human operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the main structure of the present invention;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of an inverted U-shaped hanger according to the second embodiment of the present invention;

[0021] Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0022] Figure 6 It is a side view structural schematic diagram of the second embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the three-dimensional structure of a rotation drive module according to the third embodiment of the present invention;

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the array-type air-jet powder removal structure according to the third embodiment of the present invention.

[0025] In the figure: 1. dovetail column; 2. screw lifting module; 3. slide plate; 4. inverted U-shaped hanger; 5. T-seat; 6. four-track lifting guide structure; 601. dovetail sleeve; 602. dovetail guide rail; 7. support ring; 701. rectangular convex plate; 8. Z-direction spline gear transmission structure; 801. internal spline shaft; 802. external spline shaft; 803. driving gear; 804. external gear ring; 9. hollow air disc; 10. array-type jet powder removal structure; 1001. manual control valve; 1002. exhaust straight pipe; 1003. elbow; 1004. nozzle; 11. Rotation drive module; 1101. Stepper motor; 1102. Coupling; 1103. Bevel gear transmission; 1104. Pulley transmission; 12. Driven shaft; 13. Cam self-resetting vibration assembly; 1301. T-arm; 1302. Hydraulic damper; 1303. Cam unit; 1304. Arc-shaped upper convex part; 14. Telescopic rotary air intake assembly; 1401. U-shaped sheet metal; 1402. Air intake main pipe; 1403. Rotary joint; 1404. Internal spline air intake pipe; 1405. External spline air intake pipe; 15. PLC control panel. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1, by Figures 1 to 3 The present invention comprises a dovetail column 1, a slide plate 3 is slidably mounted on the outer wall of one side of the dovetail column 1, and an inverted U-shaped hanger 4 is fixed on the outer wall of the slide plate 3 away from the dovetail column 1, a T-shaped seat 5 is fixed at the corner position of the top wall of the inverted U-shaped hanger 4, a four-track lifting guide structure 6 is arranged between the four T-shaped seats 5 in the vertical direction, a support ring 7 is slidably mounted on the four T-shaped seats 5 through the four-track lifting guide structure 6, and a Z-direction spline gear transmission structure 8 is installed at the bottom end of the support ring 7, and a center gear transmission structure 8 is installed at the rotating end of the Z-direction spline gear transmission structure 8 The air disk 9, the lower surface of the hollow air disk 9 is provided with an array-type jet powder removal structure 10 for forming multiple jet areas, the top wall of the inverted U-shaped hanger 4 is installed with a telescopic rotary air intake assembly 14 for keeping the air path with the hollow air disk 9 unobstructed, and the inside of the dovetail column 1 is installed with a screw lifting module 2 for controlling the vertical lifting of the slide plate 3, the screw lifting module 2 accurately controls the array-type jet powder removal structure 10 to move in the vertical direction, ensuring that the array-type jet powder removal structure 10 can be adjusted to different heights, thereby covering the entire surface of the metal workpiece and avoiding dead corners;

[0028] A driven shaft 12 is rotatably mounted on one side outer wall of the inverted U-shaped hanger 4, one end of the driven shaft 12 extends to the interior of the inverted U-shaped hanger 4 and is provided with a cam self-resetting vibration assembly 13 for driving the support ring 7 to reciprocate in the vertical direction. A rotation drive module 11 for driving the driven shaft 12 and the Z-axis spline gear transmission structure 8 to rotate is installed on one side outer wall of the inverted U-shaped hanger 4, and a PLC control panel 15 for electrically connecting to the screw lifting module 2 and the input end of the rotation drive module 11 is installed on the other side outer wall of the dovetail column 1.

[0029] Embodiment 2, based on embodiment 1, Figure 4 , Figure 5 and Figure 6It is given that the Z-direction spline gear transmission structure 8 includes a rectangular convex plate 701 integrally formed on the outer wall of one side of the support ring 7, an inner spline shaft 801 rotatably installed inside the rectangular convex plate 701, an outer spline shaft 802 installed at the output end of the rotation drive module 11, and a driving gear 803 fixed at the bottom end of the inner spline shaft 801. An outer gear ring 804 with a cross is rotatably installed at the bottom end of the support ring 7. The outer gear ring 804 and the driving gear 803 are meshed with each other. The bottom end of the outer spline shaft 802 extends to the inside of the inner spline shaft 801, and the hollow disk 9 is fixed at the bottom of the outer gear ring 804. At the end, during the upward movement of the array-type jet powder removal structure 10, the rotary drive module 11 drives the outer spline shaft 802 in the Z-direction spline gear transmission structure 8 to rotate, and the outer spline shaft 802 drives the inner spline shaft 801 and the driving gear 803 to rotate in turn. At this time, the driving gear 803 actively drives the outer gear ring 804 and the hollow air disc 9 to rotate, thereby making the array-type jet powder removal structure 10 rotate around the metal workpiece, so that all angles of the metal workpiece can be covered during the cleaning process, avoiding the common cleaning dead angles in traditional manual operations;

[0030] The telescopic rotary air intake assembly 14 comprises a U-shaped sheet metal part 1401 fixed at the center position of the top wall of the inverted U-shaped hanger 4, an air intake main pipe 1402 rotatably installed inside the U-shaped sheet metal part 1401, and an external spline air intake pipe 1405 installed at the bottom end of the air intake main pipe 1402, an internal spline air intake pipe 1404 coaxial with the external spline air intake pipe 1405 is installed at the center position of the top end of the hollow air disk 9, the bottom end of the external spline air intake pipe 1405 extends to the inside of the internal spline air intake pipe 1404, a rotary joint 1403 is installed at the top end of the air intake main pipe 1402, and a corrugated hose is installed at the end of the rotary joint 1403 away from the air intake main pipe 1402;

[0031] During the rotation of the hollow air disk 9, the outer gear ring 804 will drive the inner spline air inlet pipe 1404, the outer spline air inlet pipe 1405 and the air inlet main pipe 1402 to rotate together. When the bellows at the top of the rotary joint 1403 is connected to the external pump air end, the air inlet main pipe 1402 keeps rotating with the bellows through the rotary joint 1403, and ensures that the air path is unobstructed. During this process, the high-pressure gas in the bellows is sequentially delivered to the hollow air disk 9 through the rotary joint 1403, the air inlet main pipe 1402, the outer spline air inlet pipe 1405 and the inner spline air inlet pipe 1404;

[0032] The four-track lifting guide structure 6 includes a dovetail sleeve 601 fixed on the outer wall of one side of the T-seat 5 and a dovetail guide rail 602 slidably installed inside the dovetail sleeve 601, the bottom end of the dovetail guide rail 602 is fixedly connected to the top of the support ring 7, the external spline shaft 802 and the driven shaft 12 maintain power transmission through the rotation drive module 11, the cam self-resetting vibration assembly 13 includes a T-arm 1301 fixed on the outer wall of one side of one of the dovetail guide rails 602, an arc-shaped upper convex portion 1304 integrally formed at the top of the T-arm 1301, and a cam monomer 1303 fixed at one end of the driven shaft 12, the cam self-resetting vibration assembly 13 also includes a hydraulic damper 1302 installed on the inner wall of one side of the inverted U-shaped hanger 4, and the top end of the piston rod of the hydraulic damper 1302 is connected to the outer wall of one side of the T-arm 1301 through a convex shaft and a flat joint;

[0033] The rotary power generated by the rotary drive module 11 when working is synchronously transmitted to the driven shaft 12, and the driven shaft 12 drives the cam monomer 1303 to rotate. When the end of the cam monomer 1303 contacts the arc-shaped upper convex portion 1304 at the top of the T-arm 1301, the cam monomer 1303 drives the T-arm 1301, the dovetail guide rail 602, the support ring 7, the array-type jet powder removal structure 10 and other components to move down a distance through the arc-shaped upper convex portion 1304. The dovetail sleeve 601 is used to assist the dovetail guide rail 602, the support ring 7 and other components to slide vertically to ensure the sliding stability of each component. At this time, the hydraulic damper 1302 is stretched, and the internal spline The air intake pipe 1404, the inner spline shaft 801 and the support ring 7 will all move downward. During this process, the inner spline shaft 801 and the outer spline shaft 802 will maintain a power connection state, while the outer spline air intake pipe 1405 and the outer spline air intake pipe 1405 will still maintain an air path unobstructed state. When the cam monomer 1303 is no longer in contact with the arc-shaped upper protrusion 1304, the hydraulic damper 1302 begins to reset, and then each shaft body and pipe fitting is also reset to wait for the next action. Through the vibration mechanism driven by the cam, the array-type jet powder removal structure 10 can effectively loosen and remove metal powder, especially in small holes or complex internal structures of the workpiece, thereby increasing the thoroughness of cleaning.

[0034] Embodiment 2, based on embodiment 1, comprises 6 and Figure 7It is given that the rotation drive module 11 includes a stepper motor 1101 installed on the outer wall of one side of the support ring 7, a coupling 1102 installed at the output end of the stepper motor 1101, and a bevel gear transmission member 1103 and a pulley transmission member 1104 for connecting the driven shaft 12. The bottom end of the coupling 1102 is fixedly connected to the top end of the external spline shaft 802. The bevel gear transmission member 1103 includes a longitudinal axis installed on the outer wall of one side of the inverted U-shaped hanger 4, a driven bevel gear installed at one end of the longitudinal axis surface, and a bevel gear fixed to one end of the coupling 1102 surface. The active bevel gear and the driven bevel gear are meshed with each other. When the rotation drive module 11 is working, the stepper motor 1101 drives the coupling 1102 and the external spline shaft 802 in the Z-direction spline gear transmission structure 8 to rotate, so that the array-type jet powder removal structure 10 rotates, and the driven shaft 12 is driven to rotate by the bevel gear transmission member 1103 and the pulley transmission member 1104, so that the self-rotation of the array-type jet powder removal structure 10 and the vibration powder removal action share a power source, and the structure is simple, and the operation is stable and reliable;

[0035] The array-type jet powder removal structure 10 comprises a plurality of manual control valves 1001 at the bottom of the hollow air disk 9 installed at equal intervals in an annular manner, an exhaust straight pipe 1002 installed at the air outlet end of the manual control valve 1001, a bend pipe 1003 installed on the outer wall of one side of the exhaust straight pipe 1002, and a nozzle 1004 installed at the bottom of the nozzle 1004, wherein the bend pipe 1003 gradually bends and extends toward the vertical center line direction of the hollow air disk 9 from one end close to the exhaust straight pipe 1002 to the other end; the high-pressure gas in the hollow air disk 9 is sprayed toward the workpiece through the manual control valve 1001, the exhaust straight pipe 1002, the bend pipe 1003 and finally through the nozzle 1004, wherein each jet area can work independently and clean the surface of the workpiece at the same time, and due to the existence of multiple jet areas, the array-type jet powder removal structure can also cover a wider range of workpiece surfaces;

[0036] The staff opens the manual control valve 1001 at the corresponding position to make the exhaust straight pipe 1002, the curved pipe 1003 and the nozzle 1004 connected to the manual control valve 1001 in a passage state, so that the blowing density of the array-type jet powder removal structure 10 can be controlled as needed.

[0037] When the embodiment of the present application is in use, the staff first arranges the metal powder processing system in a sealed cabin structure, and installs a metal workpiece for supporting the printing in the cabin structure. After the staff places the metal workpiece in the cabin structure, the PLC control panel 15 is used to turn on the screw lifting module 2 to work, and the screw lifting module 2 drives the inverted U-shaped hanger 4, the support ring 7, the rotation drive module 11, the array-type jet powder removal structure 10 and other structures to move downward until the jet end of the array-type jet powder removal structure 10 is located at the bottom of the metal workpiece. Then the staff connects the telescopic rotary air intake assembly 14 to an external pump air end, such as an air pump. At this time, the pump air end pumps the compressed high-pressure gas into the hollow through the telescopic rotary air intake assembly 14. The powder is sprayed out at multiple points in the air disk 9 in the form of a circular array through the array-type jet powder removal structure 10, so that the array-type jet powder removal structure 10 forms a jet area at multiple points on the outside of the metal workpiece, which effectively removes the powder from the fine structure on the surface of the metal workpiece with a high-speed jet airflow. The staff turns on the screw lifting module 2 and the rotary drive module 11 through the PLC control panel 15 to work, and uses the screw lifting module 2 to control the inverted U-shaped hanger 4, the support ring 7, the rotary drive module 11, the array-type jet powder removal structure 10 and other components to move along the vertical direction of the metal workpiece, ensuring that the array-type jet powder removal structure 10 can be accurately adjusted to different heights to cover the entire workpiece surface. The rotation of the rotary drive module 11 in the process The power is synchronously transmitted to the Z-direction spline gear transmission structure 8 and the driven shaft 12, and the Z-direction spline gear transmission structure 8 drives the hollow air disk 9 and the array-type jet powder removal structure 10 to start rotating, that is, driving the array-type jet powder removal structure 10 to rotate around the metal workpiece, ensuring that all angles of the metal workpiece can be covered during the entire cleaning process, reducing the blind area of ​​powder blowing and avoiding the cleaning dead angle caused by angle problems. When the driven shaft 12 is driven by the rotating drive module 11, the driven shaft 12 uses the cam self-resetting vibration component 13 to drive the support ring 7, the hollow air disk 9, the array-type jet powder removal structure 10 and other components to reciprocate in the vertical direction. Even if the array-type jet powder removal structure 10 vibrates back and forth, during this process, the four-track lifting guide The structure 6 ensures the stability and accuracy of the movement of the support ring 7, and realizes an action similar to a manual swinging spray gun. On the one hand, it extends the jet path of the array-type jet powder removal structure 10 on the metal workpiece. On the other hand, this vibration can effectively loosen the metal powder adhering to the surface of the workpiece, especially in complex internal structures or small holes, to improve the thoroughness and efficiency of cleaning. During the rotation and reciprocating vertical vibration of the array-type jet powder removal structure 10, the telescopic rotating air intake assembly 14 allows the position of the array-type jet powder removal structure 10 to be adjusted, and can reciprocate and vibrate during operation to ensure the smooth flow of the air path. When the array-type jet powder removal structure 10 is moved to the extreme position by the screw lifting module 2, the outer peripheral surface of the metal workpiece completes the powder blowing work.After that, the staff can use the spray gun to remove the metal powder remaining on the inner wall of the metal workpiece chamber; the staff can also first clean the metal powder on the inner wall of the metal workpiece chamber, and then use the metal powder treatment system to clean the metal powder on the outer wall of the metal workpiece.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal powder processing system for 3D printing equipment, characterized in that: include: A dovetail column (1), a slide plate (3) is slidably mounted on the outer wall of one side of the dovetail column (1), and an inverted U-shaped hanger (4) is fixed on the outer wall of the slide plate (3) away from the dovetail column (1), a T-shaped seat (5) is fixed at the corner position of the top wall of the inverted U-shaped hanger (4), a four-track lifting guide structure (6) is arranged between four of the T-shaped seats (5) in the vertical direction, and a support ring (7) is slidably mounted on the four T-shaped seats (5) through the four-track lifting guide structure (6), and the support ring (7) A Z-direction spline gear transmission structure (8) is installed at the bottom end, a hollow air disk (9) is installed at the rotating end of the Z-direction spline gear transmission structure (8), an array-type jet powder removal structure (10) for forming a plurality of jet areas is arranged on the lower surface of the hollow air disk (9), a telescopic rotary air intake assembly (14) for maintaining an unobstructed air path with the hollow air disk (9) is installed on the top wall of the inverted U-shaped hanger (4), and a screw lifting module (2) for controlling the vertical lifting of the slide plate (3) is installed inside the dovetail column (1); A driven shaft (12) is rotatably mounted on an outer wall of one side of the inverted U-shaped hanger (4); one end of the driven shaft (12) extends into the interior of the inverted U-shaped hanger (4) and is provided with a cam self-resetting vibration assembly (13) for driving the support ring (7) to reciprocate in the vertical direction; a rotation drive module (11) for driving the driven shaft (12) and the Z-direction spline gear transmission structure (8) to rotate is installed on the outer wall of one side of the inverted U-shaped hanger (4); A PLC control panel (15) for electrically connecting to the screw lifting module (2) and the input end of the rotation drive module (11) is installed on the outer wall of the other side of the dovetail column (1); the Z-direction spline gear transmission structure (8) comprises a rectangular convex plate (701) integrally formed on the outer wall of one side of the support ring (7), an inner spline shaft (801) rotatably installed inside the rectangular convex plate (701), an outer spline shaft (802) installed at the output end of the rotation drive module (11), and an inner spline shaft (801) rotatably installed inside the rectangular convex plate (701), and an outer spline shaft (802) installed at the output end of the rotation drive module (11). A driving gear (803) is fixed at the bottom end of the spline shaft (801); an outer gear ring (804) with a cross is rotatably mounted on the bottom end of the support ring (7); the outer gear ring (804) and the driving gear (803) are meshed with each other; the bottom end of the outer spline shaft (802) extends to the inside of the inner spline shaft (801); the hollow air disc (9) is fixed at the bottom end of the outer gear ring (804); the telescopic rotary air intake assembly (14) includes a rotating air intake assembly (14) fixed to the top wall of the inverted U-shaped hanger (4); A U-shaped sheet metal part (1401) at the center position, an intake pipe (1402) rotatably installed inside the U-shaped sheet metal part (1401), and an external spline intake pipe (1405) installed at the bottom end of the intake pipe (1402); an internal spline intake pipe (1404) coaxial with the external spline intake pipe (1405) is installed at the center position of the top end of the hollow air disk (9); and the bottom end of the external spline intake pipe (1405) extends to the inside of the internal spline intake pipe (1404).

2. A metal powder processing system for 3D printing equipment according to claim 1, characterized in that: A rotating joint (1403) is installed at the top end of the air intake main pipe (1402), and a corrugated hose is installed at one end of the rotating joint (1403) away from the air intake main pipe (1402).

3. A metal powder processing system for 3D printing equipment according to claim 2, characterized in that: The four-track lifting guide structure (6) comprises a dovetail sleeve (601) fixed on the outer wall of one side of the T-shaped seat (5) and a dovetail guide rail (602) slidably installed inside the dovetail sleeve (601), the bottom end of the dovetail guide rail (602) is fixedly connected to the top end of the support ring (7), and power transmission is maintained between the external spline shaft (802) and the driven shaft (12) through the rotating drive module (11).

4. The metal powder processing system for 3D printing equipment according to claim 3, characterized in that: The cam self-resetting vibration assembly (13) comprises a T-arm (1301) fixed on the outer wall of one side of one of the dovetail guide rails (602), an arc-shaped upper convex portion (1304) integrally formed at the top of the T-arm (1301), and a cam unit (1303) fixed to one end of the driven shaft (12). The cam self-resetting vibration assembly (13) also comprises a hydraulic damper (1302) mounted on the inner wall of one side of the inverted U-shaped hanger (4), and the top end of the piston rod of the hydraulic damper (1302) is connected to the outer wall of one side of the T-arm (1301) via a convex shaft and a flat joint.

5. The metal powder processing system for 3D printing equipment according to claim 4, characterized in that: The rotary drive module (11) comprises a stepper motor (1101) mounted on an outer wall of one side of a support ring (7), a coupling (1102) mounted on the output end of the stepper motor (1101), and a bevel gear transmission member (1103) and a pulley transmission member (1104) for connecting to a driven shaft (12); the bottom end of the coupling (1102) is fixedly connected to the top end of an external spline shaft (802).

6. A metal powder processing system for 3D printing equipment according to claim 5, characterized in that: The bevel gear transmission member (1103) comprises a longitudinal axis mounted on the outer wall of one side of the inverted U-shaped hanger (4), a driven bevel gear mounted on one end of the longitudinal axis surface, and a driving bevel gear fixed on one end of the coupling (1102) surface, wherein the driving bevel gear and the driven bevel gear are meshed with each other.

7. A metal powder processing system for 3D printing equipment according to claim 6, characterized in that: The array-type air jet powder removal structure (10) comprises a plurality of manual control valves (1001) at the bottom end of a hollow air disk (9) installed at equal intervals in a ring shape, an exhaust straight pipe (1002) installed at the air outlet end of the manual control valve (1001), a curved pipe (1003) installed on the outer wall of one side of the exhaust straight pipe (1002), and a nozzle (1004) installed at the bottom end of the nozzle (1004).

8. The metal powder processing system for 3D printing equipment according to claim 7, characterized in that: The curved pipe (1003) gradually bends and extends from one end close to the exhaust straight pipe (1002) to the other end toward the vertical center line of the hollow air disk (9).

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