Powder removing equipment for metal 3D printing forming part

Abstract

The utility model provides powder removing equipment for metal 3D printing forming parts, a powder removing cavity is arranged in an equipment body, and a rocker arm mechanism is arranged in the powder removing cavity and comprises a first driving mechanism, a second driving mechanism and a U-shaped rocker arm frame. The first driving mechanism and the second driving mechanism are matched to drive the U-shaped rocker arm frame to circumferentially rotate around the horizontal axis, the positioning locking assembly is arranged on a bearing platform of the U-shaped rocker arm frame and comprises a first panel, a plurality of locking sliding blocks and a first driving part, a plurality of sliding grooves are formed in the first panel, the locking sliding blocks are in sliding connection with the sliding grooves, and the first driving part is arranged on the first panel. The multiple locking sliding blocks are driven by the first driving part to move in the center direction of the first panel, so that the ends, in the center direction of the first panel, of the locking sliding blocks abut against the circumferential side wall of a base plate to which the metal 3D printing forming piece belongs. By means of the powder removing device, the function that the powder removing device can rapidly and stably clamp and fix the metal 3D printing forming part can be achieved.

Description

Technical Field

[0001] This utility model belongs to the field of metal 3D printing technology, and in particular relates to a powder removal device for metal 3D printed parts. Background Technology

[0002] Metal 3D printing, also known as metal additive manufacturing, is an advanced manufacturing process that builds three-dimensional metal parts by adding materials layer by layer. This technology has wide applications in precision machining fields such as aerospace, automotive, medical, and mold making. It can be used to produce parts with complex geometries and achieves design freedom and performance optimization that is difficult to achieve with traditional manufacturing methods. During the metal 3D printing process, the initially printed metal 3D parts contain a large amount of dust in their internal cavities or joints. The cleanliness of this dust directly affects the quality of subsequent heat treatment processes, and may also affect subsequent machining, surface treatment, and the performance and reliability of the final product.

[0003] Under current technology, conventional methods for removing powder from metal 3D printed parts are either manual or specialized. First, manual methods using tools such as brushes, air guns, or scrapers are employed to remove residual powder from the surface and interior of the metal 3D printed parts. However, this is only suitable for workpieces with simple geometries and cannot guarantee effective powder removal for complex structures. Second, specialized powder removal equipment is used. However, due to the large size and weight of complex metal 3D printed parts, existing powder removal equipment cannot guarantee the stability and safety of the parts. Furthermore, the alignment and fixation process of the metal 3D printed parts within the powder removal equipment is time-consuming, resulting in low overall efficiency of the powder removal operation. Utility Model Content

[0004] This utility model aims to provide a powder removal device for metal 3D printed parts, in order to solve the technical problems that conventional powder removal devices have poor fixation for metal 3D printed parts and low powder removal efficiency under the existing technology.

[0005] To solve the above problems, the technical solution of this utility model is: a powder removal device for metal 3D printed parts, comprising:

[0006] The equipment body has a powder cleaning chamber inside and an inlet / outlet door on one side of the equipment body. The inlet / outlet door is used to connect the powder cleaning chamber to the external space of the equipment body.

[0007] A rocker arm mechanism is provided inside the powder cleaning chamber and includes a first drive mechanism, a second drive mechanism, and a U-shaped rocker arm frame. The output parts of the first drive mechanism and the second drive mechanism are respectively connected to the two side arms of the U-shaped rocker arm frame. The fixed parts of the first drive mechanism and the second drive mechanism are respectively fixed in the side walls of the powder cleaning chamber that are arranged facing each other. The first drive mechanism and the second drive mechanism cooperate to drive the U-shaped rocker arm frame to rotate circumferentially around the horizontal axis.

[0008] A locking mechanism includes a positioning locking component disposed on the support platform of the U-shaped rocker arm frame. The positioning locking component includes a first panel, a plurality of locking sliders, and a first driving part. The first panel has a plurality of sliding grooves, which extend from the edge of the first panel toward the center. The locking sliders pass through the corresponding sliding grooves and are slidably connected to the sliding grooves. The positioning locking component is configured such that the locking sliders move along the extension direction of their corresponding sliding grooves under the driving action of the first driving part. After the locking sliders move a preset distance toward the center of the first panel, the ends of the locking sliders toward the center of the first panel abut against the circumferential sidewall of the substrate to which the metal 3D printed part belongs.

[0009] Preferably, the locking mechanism further includes a shock-absorbing component, which is disposed on the bearing platform of the U-shaped rocker arm frame. The shock-absorbing component includes a second panel and a plurality of shock-absorbing blocks uniformly fixed on the top surface of the second panel. The bottom of the positioning locking component is fixedly connected to the top of the shock-absorbing component, and the bottom surface of the first panel abuts against the top surface of the shock-absorbing block.

[0010] Preferably, the first drive mechanism includes an active driver and a first rotating shaft, the output shaft of the active driver is fixedly connected to a first end of the first rotating shaft, and the second end of the first rotating shaft is fixedly connected to a first support arm bearing of the U-shaped rocker arm frame;

[0011] The second drive mechanism includes a driven driver and a second rotating shaft. The output shaft of the driven driver is fixedly connected to the first end of the second rotating shaft, and the second end of the second rotating shaft is rotatably connected to the second support arm bearing of the U-shaped rocker arm frame.

[0012] The first arm pivot and the second arm pivot are arranged along the same axial extension direction.

[0013] Preferably, the rocker arm mechanism further includes a rotating platform and a second drive unit. The rotating platform is fixed on the bearing platform of the U-shaped rocker arm frame, and a plurality of first fixing holes are provided in the rotating platform. A plurality of second fixing holes matching the first fixing holes are provided in the second panel. A bolt assembly is provided to pass through the second panel and the rotating platform to realize the fixed connection between the shock absorption assembly and the rotating platform.

[0014] The second drive unit is located inside the U-shaped rocker arm frame, and the output shaft of the second drive unit is connected to the rotating platform for transmission. The second drive unit is used to drive the rotating platform and the locking mechanism to rotate along the axial direction of the rotating platform.

[0015] Preferably, the top of the shock absorber block is provided with a plurality of third fixing holes, and the first panel is provided with a plurality of fourth fixing holes that match the third fixing holes. A bolt assembly is provided to pass through the first panel and the shock absorber block to achieve a fixed connection between the positioning locking assembly and the shock absorber assembly.

[0016] Preferably, the top surface of the first panel is provided with a plurality of positioning pins, the positioning pins being matched with the positioning holes at the bottom of the metal 3D printed part, and the metal 3D printed part being positioned in the central area of ​​the first panel when it moves to engage with the plurality of positioning pins.

[0017] Preferably, the positioning and locking assembly further includes several connecting plates and a floating joint, the first driving part includes several cylinder assemblies, the connecting plate is disposed at the bottom of the first panel, the locking slider passes through the sliding groove and forms a connecting end at the bottom of the first panel, the two ends of any connecting plate are respectively fixedly connected to the connecting ends of the two adjacent sets of locking sliders, and the output part of the cylinder assembly is connected to the middle section of the corresponding connecting plate through the floating joint.

[0018] Preferably, the positioning and locking assembly further includes a plurality of mounting blocks, which are used to fix the cylinder assembly to the bottom of the first panel.

[0019] Preferably, the positioning and locking assembly further includes a plurality of pressure plates, each pressure plate being fixedly disposed on the bottom surface of its corresponding sliding groove. Each pressure plate has a through pressure plate groove, and the extension direction of each pressure plate groove is consistent with the extension direction of its corresponding sliding groove. The width of the pressure plate groove is smaller than the width of the sliding groove. The locking slider passes through the sliding groove and the pressure plate groove in sequence and then connects to the connecting plate. The width of the connecting plate is greater than the width of the pressure plate groove.

[0020] The area where the pressure plate extends from the bottom of the first panel into the sliding groove and faces the top surface of the first panel is designated as a sliding guide rail. The locking slider has a limiting block on the side of the slider that passes through the sliding groove. The overall width of the limiting block and the locking slider is greater than the width from the edge of the sliding guide rail to the edge of the opposite side of the sliding groove, and less than the width of the sliding groove. The bottom surface of the limiting block is slidably connected to the top surface of the sliding guide rail.

[0021] Preferably, the locking slider has a clamping part at one end facing the center of the first panel, the clamping part extends along the length of the locking slider, and there is a gap between the bottom surface of the clamping part and the top surface of the first panel. The circumferential sidewall of the substrate to which the metal 3D printed part belongs has a slot that matches the clamping part. When the ends of the locking sliders facing the center of the first panel respectively abut against the circumferential sidewall of the substrate to which the metal 3D printed part belongs, the clamping part is deeply engaged in the slot.

[0022] Because of the adoption of the above technical solution, this utility model has the following advantages and positive effects compared with the prior art:

[0023] This invention provides a powder removal device for metal 3D printed parts, comprising a rocker arm mechanism, a positioning and locking assembly, and a shock-absorbing assembly. During the powder removal process, the metal 3D printed part is first quickly positioned by a positioning pin, determining its specific location on the first panel of the positioning and locking assembly. Then, a cylinder assembly drives several locking sliders to move along sliding grooves, causing the clamping parts of these sliders to circumferentially clamp the substrate to which the metal 3D printed part belongs, ensuring the clamping stability of the metal 3D printed part. Finally, the rocker arm mechanism is activated, causing the metal 3D printed part to rotate circumferentially around the horizontal axis of the U-shaped rocker arm frame and also around the vertical axis of the rotating platform, thereby quickly dislodging the powder from the internal cavities and connecting gaps of the metal 3D printed part. During this process, the shock-absorbing assembly provides shock absorption for the rotation of the metal 3D printed part, further improving the clamping stability of the positioning and locking assembly. In summary, this utility model enables rapid positioning and automatic locking of 3D-printed metal parts inside a powder removal device, while ensuring the stability of the clamping of the 3D-printed metal parts. It effectively improves the efficiency of powder removal operations, saves manpower and resources, and reduces the safety risks of manual lifting and handling. It provides ideas and directions for the development of automated production lines in the industry and has excellent practical and promotional value. Attached Figure Description

[0024] Figure 1 This utility model provides an external structural schematic diagram of a powder removal device for metal 3D printed parts.

[0025] Figure 2 This utility model provides a schematic diagram of the structure of the powder cleaning chamber;

[0026] Figure 3 A first structural schematic diagram of the rocker arm mechanism provided by this utility model;

[0027] Figure 4 A second structural schematic diagram of the rocker arm mechanism provided by this utility model;

[0028] Figure 5 A schematic diagram of the locking mechanism provided by this utility model;

[0029] Figure 6 A schematic diagram of the shock absorption component provided by this utility model;

[0030] Figure 7 A top view of the positioning and locking assembly provided by this utility model;

[0031] Figure 8 A bottom view of the positioning and locking assembly provided by this utility model.

[0032] Explanation of reference numerals in the attached drawings: 1: Equipment body; 2: Powder cleaning chamber; 3: Rocker arm mechanism; 31: U-shaped rocker arm frame; 311: First support arm bearing; 312: Second support arm bearing; 313: Bearing platform; 32: Active driver; 33: First rotating shaft; 34: Driven driver; 35: Second rotating shaft; 36: Rotating platform; 361: First fixing hole; 4: Positioning and locking assembly; 41: First panel; 411: Fourth fixing hole; 42 421: Locking slider; 422: Limiting block; 423: Clamping part; 44: Sliding groove; 45: Positioning pin; 46: Connecting plate; 47: Cylinder assembly; 48: Floating joint; 49: Mounting block; 40: Pressure plate; 41: Pressure plate groove; 42: Sliding guide rail; 5: Shock absorption assembly; 51: Second panel; 511: Second fixing hole; 52: Shock absorption block; 522: Third fixing hole; 6: Metal 3D printed part; 61: Slot. Detailed Implementation

[0033] The powder removal device for metal 3D printed parts proposed in this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer from the following description and claims.

[0034] See Figures 1 to 8 This embodiment provides a powder removal device for metal 3D printed parts, which optimizes the clamping and fixing effect of the powder removal device on the metal 3D printed parts 6 during the powder removal process, and improves the powder removal efficiency of the powder removal device.

[0035] Specifically, the main body of the metal 3D printed part powder removal equipment provided in this embodiment includes a powder removal chamber 2, a rocker arm mechanism 3, and a locking mechanism. The powder removal chamber 2 is located inside the equipment body 1 and is used to accommodate the metal 3D printed part 6 for powder removal. An inlet / outlet door that can be opened and closed is provided on one side of the equipment body 1. The inlet / outlet door is used to connect the powder removal chamber 2 to the external space of the equipment body 1. When performing the powder removal operation on the metal 3D printed part 6, the external gantry robot can grab the metal 3D printed part 6 and move it through the inlet / outlet door to place it inside the powder removal chamber 2.

[0036] See Figures 2 to 4 The rocker arm mechanism 3 is located inside the powder cleaning chamber 2 and includes a first drive mechanism, a second drive mechanism, and a U-shaped rocker arm frame 31. The first drive mechanism and the second drive mechanism are devices for providing a power source. The output parts of the first drive mechanism and the second drive mechanism are respectively connected to the two side arms of the U-shaped rocker arm frame 31. The fixed parts of the first drive mechanism and the second drive mechanism are respectively fixed in the side walls arranged opposite to each other inside the powder cleaning chamber 2. In one embodiment, a fixed frame may be provided inside the powder cleaning chamber 2, and the fixed parts of the first drive mechanism and the second drive mechanism are respectively fixedly connected to the fixed frame by bolt assemblies. When the rocker arm mechanism 3 is not performing the powder removal operation of the metal 3D printed part 6, the U-shaped rocker arm frame 31 hangs down naturally with its U-shaped opening facing the top of the equipment body 1. When the rocker arm mechanism 3 performs the powder removal operation of the metal 3D printed part 6, the first drive mechanism and the second drive mechanism cooperate to drive the U-shaped rocker arm frame 31 to rotate circumferentially around its horizontal axis, thereby realizing the function of throwing off the powder in the internal cavity and connecting gap of the metal 3D printed part 6. The horizontal axis of the U-shaped rocker arm frame 31 refers to the connection position where the output part of the first drive mechanism and the second drive mechanism are connected to the two side arms of the U-shaped rocker arm frame 31 as the rotation axis. The line connecting the rotation axes of the two side arms of the U-shaped rocker arm frame 31 is the horizontal axis of the U-shaped rocker arm frame 31.

[0037] The U-shaped rocker arm frame 31 has a horizontally extending support platform 313 at the bottom of its inner side of the U-shaped structure. The locking mechanism includes a positioning locking component 4, which is located on the support platform 313 of the U-shaped rocker arm frame 31. The positioning locking component 4 includes a first panel 41, a plurality of locking sliders 42 and a first drive part. A plurality of sliding grooves 43 are provided in the first panel 41. The plurality of sliding grooves 43 extend from the edge of the first panel 41 toward the center. A set of locking sliders 42 corresponds to a set of sliding grooves 43, and the locking sliders 42 pass through the sliding grooves 43. The locking sliders 42 and the sliding grooves 43 are slidably connected. The locking slider 42 is also connected to the first driving unit. When the metal 3D printed part 6 is first placed on the first panel 41 of the positioning and locking assembly 4, the locking sliders 42 move along the extension direction of their corresponding sliding grooves 43 under the driving action of the first driving unit. After the locking sliders 42 move a preset distance toward the center of the first panel 41, one end of the locking sliders 42 toward the center of the first panel 41 abuts against the circumferential sidewall of the bottom substrate of the metal 3D printed part 6, thereby realizing the automatic clamping and fixing function of the positioning and locking assembly 4 on the metal 3D printed part 6.

[0038] In this design, several sliding grooves 43 extend from the edge of the first panel 41 towards the center. The arrangement of the sliding grooves 43 includes radial distribution and radial offset distribution. Radial distribution means the sliding grooves 43 are arranged so that they point directly towards the center point from the edge of the first panel 41. Radial distribution of the sliding grooves 43 is suitable for a circular substrate of the metal 3D printed part 6. Radial offset distribution means the sliding grooves 43 extend from the edge of the first panel 41 towards the center, but do not point directly towards the center point. Ultimately, the ends of several sliding grooves 43 near the center of the first panel 41 form a specific geometric shape, such as a rectangle. Therefore, radial offset distribution of the sliding grooves 43 is suitable for a rectangular substrate of the metal 3D printed part 6. (See [reference]). Figure 5 .

[0039] The specific structure and function of the powder removal equipment for metal 3D printed parts provided in this embodiment will be described in further detail below:

[0040] See Figures 5 to 6Preferably, in this embodiment, the locking mechanism further includes a shock-absorbing component 5, which is disposed on the bearing platform 313 of the U-shaped rocker arm frame 31. The shock-absorbing component 5 includes a second panel 51 and a plurality of shock-absorbing blocks 52. The plurality of shock-absorbing blocks 52 are evenly distributed on the top surface of the second panel 51 and are fixedly connected to the second panel 51 by bolt assembly. The shock-absorbing blocks 52 are preferably made of rubber, polyurethane or silicone material. In this embodiment, the bottom of the positioning locking component 4 is fixedly connected to the top of the shock-absorbing component 5. At this time, the bottom surface of the first panel 41 abuts against the top surface of the shock-absorbing block 52. The shock-absorbing block 52 is used to absorb, dissipate and isolate vibration energy, reduce the vibration and impact on the positioning locking component 4 and the metal 3D printed part 6 during the rotation of the U-shaped rocker arm frame 31, and thus improve the stability and safety of the positioning locking component 4 clamping the metal 3D printed part 6.

[0041] See Figures 3 to 4 Preferably, in this embodiment, the first driving mechanism includes an active driver 32 and a first rotating shaft 33. The output shaft of the active driver 32 is fixedly connected to the first end of the first rotating shaft 33, and the second end of the first rotating shaft 33 is fixedly connected to the first support arm bearing 311 of the U-shaped rocker arm frame 31. The second driving mechanism includes a driven driver 34 and a second rotating shaft 35. The output shaft of the driven driver 34 is fixedly connected to the first end of the second rotating shaft 35, and the second end of the second rotating shaft 35 is rotatably connected to the second support arm bearing 312 of the U-shaped rocker arm frame 31. The first and second support arm rotating shafts are arranged along the same axial direction. In this embodiment, the active driver 32 can be enabled to rotate its output shaft by a motor, while the output shaft of the driven driver 34 remains stationary. The rotation of the output shaft of the active driver 32 can drive the U-shaped rocker arm frame 31 to rotate around its horizontal axis. The driven driver 34 is used to ensure that the rotation on both sides of the U-shaped rocker arm frame 31 is consistent, achieving synchronous movement and thus improving the stability of the rotation of the U-shaped rocker arm frame 31. In another embodiment, the driven driver 34 can also be enabled by a motor to rotate its output shaft, and the output shaft of the driven driver 34 is fixedly connected to the first end of the second rotating shaft 35. The second end of the second rotating shaft 35 is fixedly connected to the second support arm bearing 312 of the U-shaped rocker arm frame 31. The active driver 32 and the driven driver 34 serve as power sources at the same time, which can increase the speed at which the U-shaped rocker arm frame 31 rotates around its horizontal axis.

[0042] See Figure 4Preferably, in this embodiment, the rocker arm mechanism 3 further includes a rotating platform 36 and a second drive unit. The rotating platform 36 is fixedly mounted on the bearing platform 313 of the U-shaped rocker arm frame 31, and a plurality of first fixing holes 361 are provided in the rotating platform 36. A plurality of second fixing holes 511 matching the first fixing holes 361 are provided in the second panel 51. A bolt assembly is provided to pass through the second panel 51 and the rotating platform 36 to achieve a fixed connection between the shock absorption component 5 and the rotating platform 36. The second drive unit is located inside the U-shaped rocker arm frame 31, and the output shaft of the second drive unit is connected to the rotating platform 36 for transmission. In this embodiment, when the powder removal device performs the powder removal operation on the metal 3D printed part 6, in addition to the first drive mechanism and the second drive mechanism cooperating to drive the U-shaped rocker arm frame 31 to rotate around its horizontal axis, the second drive unit is activated at the same time, driving the rotating platform 36 to rotate around its axis. The rotating platform 36 then drives the locking mechanism and the metal 3D printed part 6 to rotate synchronously, thereby improving the efficiency of powder falling from the internal cavity and connecting gaps of the metal 3D printed part 6.

[0043] See Figures 6 to 7 Preferably, in this embodiment, the top of the shock absorber 52 is provided with a plurality of third fixing holes 522, and the first panel 41 is provided with a plurality of fourth fixing holes 411 that match the third fixing holes 522. A bolt assembly is provided to pass through the first panel 41 and the shock absorber 52 to realize the fixed connection between the positioning locking assembly 4 and the shock absorber 5. Thus, while realizing the connection between the positioning locking assembly 4 and the shock absorber 5, the first panel 41 and the shock absorber 52 can be in direct contact, thereby simplifying the connection structure between the positioning locking assembly 4 and the shock absorber 5.

[0044] See Figure 7 Preferably, in this embodiment, the top surface of the first panel 41 is provided with a plurality of positioning pins 44, and the bottom of the substrate of the metal 3D printed part 6 is pre-set with a plurality of positioning holes that match the distribution positions of the positioning pins 44. When the metal 3D printed part 6 is first placed on the first panel 41 of the positioning locking assembly 4, by moving and rotating the placement position and angle of the metal 3D printed part 6, the positioning holes of the metal 3D printed part 6 are fully engaged with the positioning pins 44, realizing the function of rapid and accurate alignment of the metal 3D printed part 6. At the same time, in this embodiment, when the metal 3D printed part 6 moves to engage with all the positioning pins 44, the metal 3D printed part 6 is located in the central area of ​​the first panel 41, reducing the centrifugal force experienced by the metal 3D printed part 6 during the rotation of the U-shaped rocker arm frame 31 and the rotating platform 36, which helps to improve the stability and firmness of the positioning locking assembly 4 in holding the metal 3D printed part 6.

[0045] See Figure 8Preferably, in this embodiment, the positioning and locking assembly 4 further includes several connecting plates 45 and floating joints 47. The first driving part includes several cylinder assemblies 46. The connecting plates 45 are disposed at the bottom of the first panel 41. The locking sliders 42 pass through the sliding grooves 43 and form a connecting end at the bottom of the first panel 41. In this embodiment, two adjacent sets of locking sliders 42 share a connecting plate 45, that is, the two ends of any connecting plate 45 are fixedly connected to the connecting ends of the two adjacent sets of locking sliders 42 respectively. The output part of the cylinder assembly 46 is connected to the middle section of the corresponding connecting plate 45 through the floating joints 47. Therefore, in this embodiment, a single cylinder assembly 46 can simultaneously control two sets of locking sliders 42 to achieve synchronous movement, improve the clamping efficiency of the locking sliders 42 on the metal 3D printed part 6, and reduce the assembly quantity requirement of the cylinder assembly 46.

[0046] Preferably, in this embodiment, the positioning and locking component 4 further includes a plurality of mounting blocks 48, which are used to fix the cylinder assembly 46 to the bottom of the first panel 41, thereby achieving a fixed connection between the cylinder assembly 46 and the first panel 41.

[0047] See Figures 7 to 8 Preferably, in this embodiment, the positioning and locking assembly 4 further includes a plurality of pressure plates 49, which are respectively fixed to the bottom of the first panel 41, and each pressure plate 49 corresponds to a sliding groove 43. That is, the plurality of pressure plates 49 are respectively disposed on the bottom surface of the corresponding sliding groove 43. The pressure plate 49 is provided with a through pressure plate groove 491. The extension direction of each pressure plate groove 491 is consistent with the extension direction of its corresponding sliding groove 43. The length of the pressure plate groove 491 is consistent with the length of the sliding groove 43, or the length of the pressure plate groove 491 is longer than the length of the sliding groove 43, but the width of the pressure plate groove 491 is less than the width of the sliding groove 43. At the same time, the width of the connecting plate 45 is greater than the width of the pressure plate groove 491. The locking slider 42 passes through the sliding groove 43 and the pressure plate groove 491 in sequence and then connects to the connecting plate 45.

[0048] Since the width of the pressure plate groove 491 is smaller than the width of the sliding groove 43, when one side edge of the pressure plate groove 491 is aligned with one side edge of the sliding groove 43, the other side edge of the pressure plate groove 491 is located inside the sliding groove 43. The area where the pressure plate 49 extends from the bottom of the first panel 41 into the sliding groove 43 and faces the top surface of the first panel 41 is designated as the sliding guide rail 492. The locking slider 42 has a limiting block 421 on the slider side that passes through the sliding groove 43. The overall width of the limiting block 421 and the locking slider 42 is greater than the width from the edge of the sliding guide rail 492 to the opposite side edge of the sliding groove 43, and less than the width of the sliding groove 43. That is, after the locking slider 42, the sliding groove 43, the pressure plate 49 and the connecting plate 45 are assembled, the bottom surface of the limiting block 421 contacts the top surface of the sliding guide rail 492 and achieves a sliding connection. In this embodiment, the sliding guide rail 492 and the limiting block 421 cooperate to restrict the locking slider 42 from moving towards the bottom of the first panel 41. At the same time, the connecting plate 45 and the pressure plate 49 cooperate to restrict the locking slider 42 from moving towards the top of the first panel 41. That is, the locking slider 42 remains basically stationary in the vertical direction of the first panel 41, thereby ensuring the stability of the moving posture and direction of the locking slider 42 and ensuring the accuracy and firmness of the locking slider 42 in clamping the metal 3D printed part 6.

[0049] Preferably, in this embodiment, the locking slider 42 has a clamping part 422 at one end facing the center of the first panel 41. The clamping part 422 extends further along the length of the locking slider 42, and there is a certain gap between the bottom surface of the clamping part 422 and the top surface of the first panel 41. The metal 3D printed part 6 has a slot 61 on the circumferential sidewall of its substrate that matches the clamping part 422, and there is also a certain gap between the bottom of the slot 61 and the top surface of the first panel 41. When the positioning locking component 4 clamps the metal 3D printed part 6, several locking sliders 42 move toward the center of the first panel 41 until the clamping part 422 of the locking slider 42 is deeply engaged in the slot 61 of the substrate to which the metal 3D printed part 6 belongs, thereby realizing the clamping and locking function of the positioning locking component 4 for the metal 3D printed part 6, and effectively improving the stability of the positioning locking component 4 in clamping the metal 3D printed part 6. In another embodiment, a pressure sensor may also be provided in the clamping part 422 of the locking slider 42. During the process of the locking slider 42 clamping the metal 3D printed part 6, the value of the pressure sensor is read to determine whether the clamping part 422 of the locking slider 42 has reached a suitable clamping force with the surface of the metal 3D printed part 6.

[0050] In summary, this embodiment provides a powder removal device for metal 3D printed parts. During the powder removal process of the metal 3D printed part 6, the metal 3D printed part 6 is first quickly positioned by the positioning pin 44, thereby determining the specific position of the metal 3D printed part 6 on the first panel 41 of the positioning locking assembly 4. Then, the cylinder assembly 46 drives several locking sliders 42 to move along the sliding groove 43, so that the clamping parts 422 of the several locking sliders 42 circumferentially clamp the metal 3D printed part 6, ensuring the clamping stability of the metal 3D printed part 6. Finally, the rocker arm mechanism 3 is activated, so that the metal 3D printed part 6 rotates circumferentially around the horizontal axis of the U-shaped rocker arm frame 31 and rotates around the axis of the rotating platform 36. Through multi-directional rotation, the powder in the internal cavity and connecting gap of the metal 3D printed part 6 is quickly thrown off. During this process, the shock absorption assembly 5 can provide shock absorption and buffer for the rotation of the metal 3D printed part 6, further improving the clamping stability of the positioning locking assembly 4 for the metal 3D printed part 6. In summary, this utility model enables rapid positioning and automatic locking of the 3D-printed metal part 6 inside the powder removal equipment, while fully ensuring the clamping stability of the 3D-printed metal part 6. This effectively improves the efficiency of powder removal operations, saves manpower and resources, and reduces the safety risks of manual lifting and handling. It provides ideas and directions for the development of automated production lines in the industry and has excellent practical and promotional value.

[0051] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A metal 3D printed shaped part powder removal apparatus, characterized in that, The device comprises: a device body, which is internally provided with a powder cleaning chamber, and one side of the device body is provided with an inlet and outlet door for connecting the powder cleaning chamber to the space outside the device body; a rocker mechanism, which is arranged inside the powder cleaning chamber and comprises a first driving mechanism, a second driving mechanism and a U-shaped rocker frame, the output parts of the first driving mechanism and the second driving mechanism are respectively connected to the two side arms of the U-shaped rocker frame, the fixed parts of the first driving mechanism and the second driving mechanism are respectively fixed to the opposite side walls in the powder cleaning chamber, and the first driving mechanism and the second driving mechanism are used to drive the U-shaped rocker frame to produce circumferential rotation around a horizontal axis; a locking mechanism, which comprises a positioning and locking assembly arranged on the bearing platform of the U-shaped rocker frame, the positioning and locking assembly comprises a first panel, a plurality of locking sliders and a first driving part, a plurality of sliding grooves are formed in the first panel and extend from the edge of the first panel to the center, and a plurality of locking sliders are respectively arranged in the corresponding sliding grooves, the locking sliders and the sliding grooves are connected in a sliding manner, and the positioning and locking assembly is configured to move the plurality of locking sliders in the extension direction of the corresponding sliding grooves under the driving action of the first driving part, and when the plurality of locking sliders move towards the center of the first panel by a preset distance, the plurality of locking sliders respectively abut against the circumferential side wall of the substrate of the metal 3D printing formed part at one end of the center of the first panel.

2. The metal 3D-printed formation powder removal apparatus of claim 1, wherein, The locking mechanism further comprises a damping assembly arranged on the bearing platform of the U-shaped rocker frame, the damping assembly comprises a second panel and a plurality of damping blocks uniformly fixed on the top surface of the second panel, the bottom of the positioning and locking assembly is fixedly connected to the top of the damping assembly, and the bottom surface of the first panel abuts against the top surface of the damping blocks.

3. The metal 3D-printed formation powder removal apparatus of claim 1, wherein, The first driving mechanism comprises a driving driver and a first shaft, the output shaft of the driving driver is fixedly connected to the first end of the first shaft, and the second end of the first shaft is fixedly connected to the first arm shaft seat of the U-shaped rocker frame. The second driving mechanism comprises a driven driver and a second shaft, the output shaft of the driven driver is fixedly connected to the first end of the second shaft, and the second end of the second shaft is rotatably connected to the second arm shaft seat of the U-shaped rocker frame. The first shaft and the second shaft are arranged along the same axis extension direction.

4. The metal 3D-printed shaped part powder removal apparatus of claim 2, wherein, The rocker mechanism further comprises a rotating platform and a second driving part, the rotating platform is fixedly arranged on the bearing platform of the U-shaped rocker frame, a plurality of first fixing holes are arranged in the rotating platform, a plurality of second fixing holes matched with the first fixing holes are arranged in the second panel, and a bolt assembly is arranged to pass through the second panel and the rotating platform to realize the fixed connection between the damping assembly and the rotating platform. The second driving part is arranged inside the U-shaped rocker frame, and an output shaft of the second driving part is in transmission connection with the rotating platform, and the second driving part is used for driving the rotating platform and the locking mechanism to produce rotation along an axis direction of the rotating platform.

5. The metal 3D-printed formation powder removal apparatus of claim 2, wherein, The top of the damping block is respectively provided with a plurality of third fixing holes, a plurality of fourth fixing holes matched with the third fixing holes are provided in the first panel, and a bolt assembly is provided to pass through the first panel and the damping block to realize the fixed connection between the positioning and locking assembly and the damping assembly.

6. The metal 3D-printed formation powder removal apparatus of claim 1, wherein, The top surface of the first panel is provided with a plurality of positioning pins, the positioning pins are positionally matched with the positioning holes at the bottom of the metal 3D printing forming part, and it is set that when the metal 3D printing forming part moves to be clamped with the plurality of positioning pins, the metal 3D printing forming part is located in the central region of the first panel.

7. The metal 3D-printed formation powder removal apparatus of claim 1, wherein, The positioning and locking assembly further comprises a plurality of connecting plates and floating joints, the first driving part comprises a plurality of cylinder assemblies, the connecting plates are arranged at the bottom of the first panel, the locking sliders pass through the sliding grooves and form connecting ends at the bottom of the first panel, the two ends of any connecting plate are fixedly connected with the connecting ends of the two groups of locking sliders adjacent to the connecting plate, and the output portions of the cylinder assemblies are connected with the middle sections of the corresponding connecting plates through the floating joints.

8. The metal 3D-printed shaped part powder removal apparatus of claim 7, wherein, The positioning and locking assembly further comprises a plurality of mounting blocks, and the mounting blocks are used for fixing the cylinder assemblies to the bottom of the first panel.

9. The metal 3D-printed formation powder removal apparatus of claim 7, wherein, The positioning and locking assembly further comprises a plurality of pressing plates, the pressing plates are respectively fixedly arranged on the bottom surfaces of the sliding grooves, the pressing plates are provided with pressing plate grooves penetrating through the pressing plates, the extension directions of the pressing plate grooves are respectively consistent with the extension directions of the sliding grooves, the widths of the pressing plate grooves are smaller than the width of the sliding groove, the locking sliders are connected with the connecting plates after sequentially passing through the sliding grooves and the pressing plate grooves, and the width of the connecting plate is greater than the width of the pressing plate groove. It is set that the pressing plates extend into the sliding grooves at the bottom of the first panel and the areas of the pressing plates towards the top surface of the first panel are sliding guide rails, the locking sliders are provided with limiting blocks at the slider side portions passing through the sliding grooves, the overall width of the limiting block and the locking slider is greater than the width from the edge of the sliding guide rail to the edge on the opposite side of the sliding groove and is smaller than the width of the sliding groove, and the bottom surface of the limiting block is in sliding connection with the top surface of the sliding guide rail.

10. The metal 3D-printed formation powder removal apparatus of claim 1, wherein, One end of the locking slider towards the central direction of the first panel is provided with a clamping portion, the clamping portion extends along the length direction of the locking slider, a gap is arranged between the bottom surface of the clamping portion and the top surface of the first panel, the circumferential side wall of the substrate of the metal 3D printing forming part is provided with a clamping groove matched with the clamping portion, and when one end of the locking slider towards the central direction of the first panel abuts against the circumferential side wall of the substrate of the metal 3D printing forming part, the clamping portion is clamped into the clamping groove.

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