Model surface flaw detection device for 3D printing

Abstract

The utility model discloses a model surface flaw detection device for 3D printing, and belongs to the technical field of model surface flaw detection devices for 3D printing, and the technical scheme is characterized in that the model surface flaw detection device comprises a placing assembly, the top of the placing assembly is fixedly connected with a frame, and a plurality of first acrylic plates are arranged in the frame; a detection assembly is arranged in the frame; the detection assembly comprises a first servo motor, the bottom of the first servo motor is fixedly connected with a hollow plate, the bottom of the hollow plate is provided with an adjusting groove, and the interior of the hollow plate is fixedly connected with a second servo motor. The problems that in the prior art, some models may have cavities, most existing camera structures are straight-up and straight-down structures, under the condition that the models are detected, after one side is detected, manual adjustment is needed again, and the workload is increased are solved.

Description

A device for detecting surface defects in 3D printed models Technical Field

[0001] This utility model relates to the technical field of surface defect detection device for 3D printed models, and particularly to a surface defect detection device for 3D printed models. Background Technology

[0002] As a typical representative of advanced manufacturing technology, 3D printing technology has made remarkable progress in recent years. With the help of computer-aided design models, it directly transforms digital models into physical products by stacking materials layer by layer. It has given rise to a variety of printing and forming methods such as stereolithography, selective laser sintering, selective laser melting, layered solid manufacturing, and fused deposition modeling. Among them, FDM3D process has become one of the most promising process methods due to its advantages such as low printing cost, diverse material selection, and high reliability.

[0003] To address the aforementioned issues, existing patents offer solutions. In most cases of defect detection for printed models, defects are captured by cameras. Some models may have cavities, and most existing camera structures are vertical. When inspecting a model, after inspecting one side, manual readjustment is required, which increases the workload.

[0004] To address this, a surface defect detection device for 3D printed models is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a surface defect detection device for 3D printed models, which can solve the problem that in most existing defect detection methods for printed models, defects are mostly captured by cameras. Some models may have cavities, and most existing camera structures are vertical structures. When detecting a model, after detecting one side, manual readjustment is required, which increases the workload.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a surface defect detection device for 3D printing models, comprising a placement component, a frame fixedly connected to the top of the placement component, a plurality of first acrylic plates disposed inside the frame, and a detection component disposed inside the frame;

[0007] The detection component includes a first servo motor, a hollow plate fixedly connected to the bottom of the first servo motor, an adjustment groove being provided at the bottom of the hollow plate, a second servo motor fixedly connected inside the hollow plate, a screw rod fixedly connected to the left side of the second servo motor, an adjustment block being threadedly connected to the surface of the screw rod, an electric telescopic rod fixedly connected to the bottom of the adjustment block, a motor fixedly connected to the bottom of the electric telescopic rod, and a defect camera detector body threadedly connected to the bottom of the motor.

[0008] Preferably, the placement component includes a base, the top of which has a cavity, the cavity is connected to a connecting pipe, and a vacuum pump is connected to the side of the connecting pipe away from the cavity.

[0009] Preferably, a partition plate is snapped into the interior of the cavity, and a soft pad is fixedly connected to the top of the partition plate. Holes are formed on the surfaces of both the partition plate and the soft pad.

[0010] Preferably, a sealing block is engaged with the inner wall of the hole, a top cover is fixedly connected to the top of the sealing block, and an adjusting column is fixedly connected to the top of the top cover.

[0011] Preferably, a protective frame is snapped onto the surface of the defect camera body, and several LED fill lights are fixedly connected inside the protective frame.

[0012] Preferably, the bottom of the base is fixedly connected to a support leg, and the bottom of the support leg is fixedly connected to an anti-slip pad.

[0013] Preferably, auxiliary grooves are provided on both the front and rear sides of the inner wall of the adjusting groove, and auxiliary blocks are fixedly connected to both the front and rear sides of the adjusting block. The auxiliary blocks are disposed on the inner wall of the auxiliary groove, and the side of the auxiliary block away from the adjusting block contacts the inner wall of the auxiliary groove.

[0014] Preferably, the first servo motor is fixedly connected to the top of the frame, and two shielding doors are rotatably connected to the front side of the frame, with a second acrylic plate connected inside each of the two shielding doors.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This application detects the model from different directions. This multi-angle adjustment function can scan the model surface in all directions, effectively avoiding blind spots in detection. Even if the model has complex structures such as cavities, it can detect defects in various parts.

[0017] 2. In this application, the partition plate and pad not only support the model, but the holes on their surface also allow negative pressure to be applied evenly to the model, keeping the model stable during the inspection process and avoiding the impact of positional displacement on the accuracy of the inspection results. For models with a bottom plane, this ensures that the defect camera inspection instrument can accurately inspect the model surface. Attached Figure Description

[0018] Figure 1 is an overall structural diagram of the 3D printing model surface defect detection device of this utility model;

[0019] Figure 2 is a schematic diagram of the detection component of this utility model;

[0020] Figure 3 is a structural schematic diagram of the placement component of this utility model;

[0021] Figure 4 is a schematic diagram of the structure of a partial component of this utility model;

[0022] Figure 5 is an enlarged schematic diagram of point A in Figure 2 of this utility model.

[0023] In the diagram, 1. Placement component; 101. Base; 102. Cavity; 103. Connecting pipe; 104. Vacuum pump; 105. Divider plate; 106. Pad; 107. Hole; 108. Sealing block; 109. Top cover; 110. Adjusting column; 2. Frame; 3. First acrylic plate; 4. Detection component; 401. First servo motor; 402. Hollow plate; 403. Adjustment groove; 404. Second servo motor; 405. Screw rod; 406. Adjustment block; 407. Electric telescopic rod; 408. Motor; 409. Defect camera detector body; 5. Protective frame; 6. LED fill light; 7. Support leg; 8. Anti-slip pad; 9. Auxiliary groove; 10. Auxiliary block; 11. Shielding door; 12. Second acrylic plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please refer to Figures 1-5. The technical solution provided by this utility model is as follows:

[0026] A surface defect detection device for 3D printed models includes a placement component 1, a frame 2 fixedly connected to the top of the placement component 1, a plurality of first acrylic plates 3 disposed inside the frame 2, and a detection component 4 disposed inside the frame 2.

[0027] The detection component 4 includes a first servo motor 401, a hollow plate 402 fixedly connected to the bottom of the first servo motor 401, an adjustment groove 403 opened at the bottom of the hollow plate 402, a second servo motor 404 fixedly connected inside the hollow plate 402, a spiral rod 405 fixedly connected to the left side of the second servo motor 404, an adjustment block 406 threadedly connected to the surface of the spiral rod 405, an electric telescopic rod 407 fixedly connected to the bottom of the adjustment block 406, a motor 408 fixedly connected to the bottom of the electric telescopic rod 407, and a defect camera detector body 409 threadedly connected to the bottom of the motor 408.

[0028] In this embodiment: The placement component 1 supports the model and the frame 2. The frame 2 supports the detection component 4. Several first acrylic plates 3 reduce the effect of light inside the frame 2. The detection component 4 performs the detection function on the model. The system includes a first servo motor 401, a hollow plate 402, an adjustment groove 403, a second servo motor 404, a spiral rod 405, an adjustment block 406, an electric telescopic rod 407, a motor 408, and a defect camera detection instrument body 409. First, the user adjusts the second servo motor 404 according to the situation, so that the second servo motor 404 supports the spiral rod 405. 5. Adjust the screw rod 405 to the inner wall of the adjustment groove 403, then adjust the adjustment block 406 to the inner wall of the adjustment groove 403, then move the electric telescopic rod 407 to the appropriate position, then the user starts the electric telescopic rod 407 to adjust the height of the motor 408, then start the defect camera inspection instrument body 409 to inspect the surface of the model. During the inspection process, the angle of the defect camera inspection instrument body 409 can be adjusted by the motor 408, and the angle of the hollow plate 402 can be adjusted by the first servo motor 401. As the angle of the hollow plate 402 is adjusted, the shooting angle is adjusted, thereby improving the inspection effect.

[0029] Specifically, as shown in Figure 3, the placement component 1 includes a base 101, a cavity 102 is provided on the top of the base 101, a connecting pipe 103 is connected inside the cavity 102, and a vacuum pump 104 is connected to the side of the connecting pipe 103 away from the cavity 102.

[0030] Specifically, as shown in Figure 3, a partition plate 105 is snapped into the cavity 102, and a soft pad 106 is fixedly connected to the top of the partition plate 105. Holes 107 are opened on the surfaces of both the partition plate 105 and the soft pad 106.

[0031] Specifically, as shown in Figure 3, a sealing block 108 is snapped into the inner wall of the hole 107, a top cover 109 is fixedly connected to the top of the sealing block 108, and an adjusting column 110 is fixedly connected to the top of the top cover 109.

[0032] In this embodiment: by setting up a base 101, a cavity 102, a connecting pipe 103, a vacuum pump 104, a partition plate 105, a soft pad 106, and holes 107, a model with a flat bottom is manually placed on top of the soft pad 106. Then, by starting the vacuum pump 104, the vacuum pump 104 works in conjunction with the connecting pipe 103 to create negative pressure inside the cavity 102. The partition plate 105 supports the soft pad 106. Then, through the holes 107 on the two surfaces, the negative pressure generated inside the cavity 102 is further amplified. The pressure is used to attach the model to the top of the base 101, thereby limiting the model's position and reducing the problem of model displacement during the inspection process. By setting a sealing block 108, a top cover 109, and an adjusting column 110, the sealing block 108 is engaged with the inner wall of the hole 107, and the top cover 109 is in contact with the top of the soft pad 106 to seal the hole 107, reducing the entry of dust into the cavity 102. The adjusting column 110 allows for easy adjustment of the position of the top cover 109.

[0033] Specifically, as shown in Figure 4, a protective frame 5 is snapped onto the surface of the defect camera inspection instrument body 409, and several LED supplementary lights 6 are fixedly connected inside the protective frame 5.

[0034] Specifically, as shown in Figures 1 and 3, a support leg 7 is fixedly connected to the bottom of the base 101, and an anti-slip pad 8 is fixedly connected to the bottom of the support leg 7.

[0035] In this embodiment: by setting up a protective frame 5, several LED fill lights 6 can be placed. By setting up several LED fill lights 6, they can be adjusted to facilitate the defect camera inspection instrument body 409 to inspect the model. By setting up support legs 7, the base 101 can be supported. By setting up anti-slip pads 8, the problem of positional displacement of support legs 7 can be reduced.

[0036] Specifically, as shown in Figure 5, auxiliary grooves 9 are provided on the front and rear sides of the inner wall of the adjusting groove 403, and auxiliary blocks 10 are fixedly connected to the front and rear sides of the adjusting block 406. The auxiliary blocks 10 are disposed on the inner wall of the auxiliary groove 9, and the side of the auxiliary block 10 away from the adjusting block 406 contacts the inner wall of the auxiliary groove 9.

[0037] Specifically, as shown in Figure 1, the first servo motor 401 is fixedly connected to the top of the frame 2, and two shielding doors 11 are rotatably connected to the front side of the frame 2. The interior of each of the two shielding doors 11 is connected to a second acrylic plate 12.

[0038] In this embodiment: by setting the auxiliary groove 9 and the auxiliary block 10, when the adjusting block 406 moves in the inner wall position of the adjusting groove 403, the auxiliary block 10 moves in the inner wall of the auxiliary groove 9, thereby reducing the problem of the positional offset of the adjusting block 406. By setting two shielding doors 11, the front side of the frame 2 can be shielded. The second acrylic plate 12 can prevent the shielding doors 11 from blocking the light.

[0039] Working principle: In use, first place the model with a flat bottom on top of the soft pad 106, start the vacuum pump 104, the vacuum pump 104 generates negative pressure inside the cavity 102 through the connecting pipe 103, the partition plate 105 supports the soft pad 106, and the holes 107 on the surface of the partition plate 105 and the soft pad 106 allow the negative pressure to be transmitted, thereby adsorbing the model onto the top of the base 101, effectively limiting the model position and reducing the model displacement during the inspection process. Depending on the specific situation of the model, start the second servo motor 404, the second servo motor 404 drives the screw rod 405 to rotate, the screw rod 405 rotates in the adjustment groove 403, causing the adjustment block 406 to move in the inner wall of the adjustment groove 403. After the adjustment block 406 moves to the appropriate position, start the electric telescopic rod 407, the electric telescopic rod 407 adjusts the height of the motor 408, and moves the defect camera inspection instrument body 409 to a position close to the model. Start the defect camera inspection instrument body 409. The inspection of the model surface begins. During the inspection process, motor 408 is activated, which drives the defect camera inspection instrument body 409 to rotate and adjust the inspection angle. At the same time, the first servo motor 401 is activated, which drives the hollow plate 402 to rotate, further adjusting the shooting angle of the defect camera inspection instrument body 409. This enables all-round inspection of different positions and angles on the model surface, improving the inspection effect. The LED supplementary light 6 inside the protective frame 5 can provide sufficient light to ensure that the defect camera inspection instrument body 409 can clearly capture the model surface. The auxiliary groove 9 and the auxiliary block 10 cooperate. When the adjusting block 406 moves, the auxiliary block 10 moves within the auxiliary groove 9, reducing the positional offset of the adjusting block 406 and ensuring the stability of the adjustment of the inspection component 4. The shielding door 11 on the front side of the frame 2 can prevent external interference. The second acrylic plate 12 can both shield and prevent the shielding door 11 from blocking too much light.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A surface defect detection device for 3D printed models, comprising a placement component (1), characterized in that: The top of the placement component (1) is fixedly connected to a frame (2), and a plurality of first acrylic plates (3) are arranged inside the frame (2). The frame (2) is also equipped with a detection component (4). The detection component (4) includes a first servo motor (401), a hollow plate (402) is fixedly connected to the bottom of the first servo motor (401), an adjustment groove (403) is provided at the bottom of the hollow plate (402), a second servo motor (404) is fixedly connected inside the hollow plate (402), a spiral rod (405) is fixedly connected to the left side of the second servo motor (404), an adjustment block (406) is threadedly connected to the surface of the spiral rod (405), an electric telescopic rod (407) is fixedly connected to the bottom of the adjustment block (406), a motor (408) is fixedly connected to the bottom of the electric telescopic rod (407), and a defect camera detector body (409) is threadedly connected to the bottom of the motor (408).

2. The 3D printing model surface defect detection device according to claim 1, characterized in that: The placement assembly (1) includes a base (101), the top of which has a cavity (102), the interior of which is connected to a connecting pipe (103), and a vacuum pump (104) is connected to the side of the connecting pipe (103) away from the cavity (102).

3. The surface defect detection device for 3D printed models according to claim 2, characterized in that: A partition plate (105) is snapped into the cavity (102), and a soft pad (106) is fixedly connected to the top of the partition plate (105). Holes (107) are opened on the surface of both the partition plate (105) and the soft pad (106).

4. The 3D printing model surface defect detection device according to claim 3, characterized in that: The inner wall of the hole (107) is fitted with a sealing block (108), the top of the sealing block (108) is fixedly connected with a top cover (109), and the top of the top cover (109) is fixedly connected with an adjusting column (110).

5. The surface defect detection device for 3D printed models according to claim 1, characterized in that: The surface of the defect camera body (409) is fitted with a protective frame (5), and several LED fill lights (6) are fixedly connected inside the protective frame (5).

6. The surface defect detection device for 3D printing models according to claim 2, characterized in that: The bottom of the base (101) is fixedly connected to a support leg (7), and the bottom of the support leg (7) is fixedly connected to an anti-slip pad (8).

7. The surface defect detection device for 3D printed models according to claim 1, characterized in that: The front and rear sides of the inner wall of the adjustment groove (403) are provided with auxiliary grooves (9), and the front and rear sides of the adjustment block (406) are fixedly connected with auxiliary blocks (10). The auxiliary blocks (10) are disposed on the inner wall of the auxiliary groove (9), and the side of the auxiliary block (10) away from the adjustment block (406) is in contact with the inner wall of the auxiliary groove (9).

8. The surface defect detection device for 3D printed models according to claim 1, characterized in that: The first servo motor (401) is fixedly connected to the top of the frame (2). The front side of the frame (2) is rotatably connected to two shielding doors (11), and the interior of each shielding door (11) is connected to a second acrylic plate (12).

Images