A visual inspection apparatus for a hemispherical shell

Abstract

The utility model belongs to visual inspection technical field, specifically discloses a kind of visual inspection device of hemispherical shell, including base, base is connected with sliding table, and sliding table is equipped with carrier, carrier includes one inner positioning block and two side positioning blocks, inner positioning block is located between two side positioning blocks, the top of inner positioning block is hemispherical and with the inside wall curved surface of shell is matched, the same side of two side positioning blocks is formed positioning slope and is arranged obliquely, and the top of carrier is equipped with detection seat, and camera is obliquely installed on detection seat.The utility model is equipped with sliding table on base, and sliding table is equipped with carrier, the cover surface of shell is positioned using two side positioning blocks of carrier, the inside wall curved surface of shell is positioned by inner positioning block of carrier, hemispherical shell is positioned accurately obliquely, detection seat is simultaneously set on the top of carrier, and camera is obliquely installed on detection seat, and the efficient, accurate detection of multiple nut installation state on the curved surface of the side wall of speaker hemispherical shell is realized.

Description

Technical Field

[0001] This utility model belongs to the field of visual inspection technology, and in particular relates to a visual inspection device with a hemispherical shell. Background Technology

[0002] As a crucial component of audio equipment, the quality of the speaker enclosure's assembly directly impacts its overall performance and aesthetic appeal. Proper installation of the nuts is a critical step in the enclosure assembly process. If parameters such as the nut installation height, depth, and orientation do not meet design requirements, it can lead to insecure connections between the speaker enclosure and internal components, causing vibration, noise, and reduced sound quality. Furthermore, improper nut installation also affects the speaker's appearance and reduces its market competitiveness. Therefore, rigorously inspecting the installation status of nuts on speaker enclosures is of significant practical importance.

[0003] Traditional manual visual inspection is inefficient, subjective, and labor-intensive. With the development of automated inspection technology, visual inspection technology has been widely used in industrial production. However, existing visual inspection devices for detecting the installation status of nuts still have the following shortcomings when dealing with hemispherical speaker enclosures.

[0004] Inaccurate positioning: Positioning hemispherical shells is one of the key issues in visual inspection. Existing inspection devices often lack effective positioning structures when positioning hemispherical shells, causing the shells to easily shift and shake during inspection, affecting the camera's shooting accuracy and the accuracy of the inspection results. Some devices, although employing simple positioning methods, cannot adapt to hemispherical shells of different sizes and shapes, resulting in poor versatility and stability in positioning.

[0005] Limited inspection angle: The curved structure of the speaker's hemispherical shell is complex, and the installation position and angle of the nuts vary. Existing visual inspection devices typically have cameras mounted vertically, a relatively simple installation method. They can usually only capture images of the nuts vertically downwards, making it difficult to comprehensively obtain multiple key parameter information of the nuts. For nuts on the curved surface of the shell, due to the limited angle, the camera may not be able to clearly capture their installation status, leading to missed detections.

[0006] Therefore, the inventors dedicated themselves to designing a visual inspection device to solve the above problems. Utility Model Content

[0007] The purpose of this invention is to provide a visual inspection device for a hemispherical shell, which can not only accurately locate the hemispherical shell, but also comprehensively inspect the installation status of the nuts on the shell, preventing missed inspections.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A visual inspection device for a hemispherical shell includes a base, on which a slide is slidably connected longitudinally. At least one carrier for obliquely positioning the hemispherical shell is provided on the slide. The carrier includes an inner positioning block and two side positioning blocks. The inner positioning block is located between the two side positioning blocks. The top of the inner positioning block is hemispherical and matches the inner sidewall curved surface of the shell. The same side of the two side positioning blocks is inclined to form a positioning slope for matching the cover surface of the shell. A detection seat with lateral and vertical movement functions is provided above the carrier. A camera for detecting the installation status of multiple nuts on the sidewall curved surface of the shell is obliquely mounted on the detection seat.

[0010] As an improvement to the visual inspection device of the hemispherical shell of this utility model, the bottom of the inspection seat is provided with a V-shaped inspection groove, and the camera is inserted into the inner wall of the inspection groove.

[0011] As an improvement to the visual inspection device with a hemispherical shell of this utility model, the included angle between the two inner walls of the inspection groove is 90 degrees to 120 degrees.

[0012] As an improvement to the visual inspection device for the hemispherical shell of this utility model, the carrier further includes two fixing blocks, which are spaced apart and located between the two side positioning blocks, and the inner positioning block is fixed to the top of the two fixing blocks.

[0013] As an improvement to the visual inspection device for the hemispherical shell of this utility model, two second fixing grooves are provided on the top surface of the slide table, each of the second fixing grooves is arranged along the transverse direction of the slide table, and the two fixing blocks are respectively fixed in the two second fixing grooves.

[0014] As an improvement to the visual inspection device for the hemispherical shell of this utility model, the top surface of the slide is provided with two first fixing grooves, each of which is arranged along the longitudinal direction of the slide, and the two side positioning blocks are respectively fixed in the two first fixing grooves.

[0015] As an improvement to the visual inspection device with a hemispherical shell of this utility model, the number of carriers is multiple and arranged in a row at intervals on the slide.

[0016] As an improvement to the visual inspection device for the hemispherical shell of this utility model, the position of the inner positioning block corresponds to the position of the heat dissipation through hole on the side wall of the shell, and all nuts are spaced around the heat dissipation through hole. The nuts are connected to the through hole of the shell by a hot-melt process.

[0017] As an improvement to the visual inspection device for the hemispherical shell of this utility model, a longitudinal linear module is provided on the top of the base, and the slide is slidably disposed on the top of the longitudinal linear module.

[0018] As an improvement of the visual inspection device with a hemispherical shell of this utility model, a horizontal linear module is fixed on the base by two support columns, a vertical linear module is slidably connected to the horizontal linear module, a slide is slidably connected to the vertical linear module, and the inspection seat is fixed on the slide.

[0019] Compared with the prior art, the visual inspection device for the hemispherical shell of this utility model sets a longitudinally sliding slide on the base, and a carrier is equipped on the slide for oblique and precise positioning of the hemispherical shell. The two side positioning blocks of the carrier are used to position the mating surface of the hemispherical shell, and the inner positioning block of the carrier positions the inner side wall curved surface of the shell, thus accurately positioning the hemispherical shell. At the same time, a detection seat with horizontal and vertical movement functions is set above the carrier, and a camera is installed obliquely on the detection seat, so as to realize efficient and accurate detection of the installation status of multiple nuts on the side wall curved surface of the speaker hemispherical shell. Attached image description:

[0020] Figure 1 This is a perspective view of the visual inspection device with a hemispherical shell according to this utility model;

[0021] Figure 2 This is an enlarged side view of the visual inspection device with a hemispherical shell according to this utility model;

[0022] Figure 3 This is a three-dimensional enlarged view of the detection seat and camera of this utility model;

[0023] Figure 4 This is a three-dimensional enlarged view of the slide and the two carriers in this utility model;

[0024] Figure 5 This is a three-dimensional enlarged view of one of the carriers on the slide in an exploded state in this utility model;

[0025] Figure 6 This is a three-dimensional enlarged view of the outer shell and nut of this utility model.

[0026] Figure 7 This is another three-dimensional enlarged view of the outer shell and nut of this utility model.

[0027] Illustration:

[0028] 1. Base; 11. Support column; 12. Display screen; 2. Horizontal linear module; 21. Vertical linear module; 211. Carriage; 22. Longitudinal linear module; 3. Detection seat; 31. Detection slot; 32. Camera; 4. Slide table; 41. First fixing slot; 42. Second fixing slot; 5. Carrier; 51. Inner positioning block; 52. Side positioning block; 521. Positioning inclined surface; 53. Fixing block; 6. Outer shell; 61. Heat dissipation hole; 62. Nut; 63. Mounting hole; 64. Cover surface. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below with reference to the accompanying drawings. The drawings are for reference and illustration only and do not constitute a limitation on the scope of patent protection of this utility model.

[0030] Reference Figures 1 to 7 A visual inspection device for a hemispherical shell includes a base 1, a slide 4 and a detection seat 3. The slide 4 is slidably disposed on the base 1. At least one carrier 5 for obliquely positioning the hemispherical shell 6 is provided on the slide 4. The detection seat 3 with horizontal and vertical movement functions is provided above the carrier 5. A camera 32 for detecting the installation status of multiple nuts 62 on the curved surface of the side wall of the shell 6 is obliquely mounted on the detection seat 3.

[0031] Reference Figure 1 and Figure 2 In this utility model, the horizontal direction of the base 1 is defined as the X-axis direction, the vertical direction of the base 1 is defined as the Y-axis direction, and the vertical direction of the base 1 is defined as the Z-axis direction. A longitudinal linear module 22 is provided on the top of the base 1 along its longitudinal direction. The slide table 4 is slidably disposed on the top of the longitudinal linear module 22 and is driven by the longitudinal linear module 22 to move along the longitudinal direction of the base 1. A display screen 12 is fixedly connected to one of the corners of the top of the base 1 through a column.

[0032] Reference Figure 4 and Figure 5 The number of carriers 5 is multiple and arranged in a row at intervals on the slide table 4. In this embodiment, two carriers 5 are preferred. The two carriers 5 have the same structure and are arranged side by side on the top surface of the slide table 4. Two second fixing grooves 42 and two first fixing grooves 41 are provided at both the left and right ends of the top surface of the slide table 4. At the same end of the slide table 4, the two second fixing grooves 42 are located between the two first fixing grooves 41. Each second fixing groove 42 is arranged along the transverse direction of the slide table 4, and each first fixing groove 41 is arranged along the longitudinal direction of the slide table 4.

[0033] Reference Figure 4 and Figure 5Each carrier 5 includes an inner positioning block 51, two side positioning blocks 52 and two fixing blocks 53. The two side positioning blocks 52 are spaced apart and fixed in two first fixing grooves 41 respectively. The same side (i.e., the front side) of the two side positioning blocks 52 is inclined to form a positioning slope 521 for matching the cover surface 64 of the housing 6. The two fixing blocks 53 are spaced apart and located between the two side positioning blocks 52. The two fixing blocks 53 are fixed in two second fixing grooves 42 respectively. The inner positioning block 51 is located between the two side positioning blocks 52 and fixed to the top of the two fixing blocks 53. The top of the inner positioning block 51 is hemispherical and matches the inner sidewall curved surface of the housing 6.

[0034] Reference Figures 1 to 3 The top of the base 1 is fixed with a horizontal linear module 2 by two support columns 11. The horizontal linear module 2 is arranged along the horizontal direction of the base 1. A vertical linear module 21 is slidably connected to the horizontal linear module 2. A T-shaped carriage 211 is slidably connected to the vertical linear module 21. The detection seat 3 is fixed on the carriage 211. The bottom of the detection seat 3 is provided with a V-shaped detection groove 31. The included angle between the two inner walls of the detection groove 31 is 90 degrees to 120 degrees. Preferably, there are two cameras 32. The two cameras 32 are inserted side by side on the front inner wall of the detection groove 31 so that the cameras 32 are tilted backward.

[0035] Reference Figure 4 , Figure 6 and Figure 7 The outer shell 6 is generally hemispherical in shape, and its open surface is its covering surface 64, which is mainly used to cover and connect with the base of another hemispherical speaker. The two corresponding side walls of the outer shell 6 are respectively provided with a mounting hole 63 and multiple heat dissipation holes 61. In this embodiment, four nuts 62 are preferably arranged in a circle around all the heat dissipation holes 61. Each nut 62 is connected to the through hole of the outer shell 6 by a hot-melt process. The position of the inner positioning block 51 corresponds to the position of the heat dissipation hole 61 on the side wall of the outer shell 6.

[0036] Reference Figures 1 to 7 The working principle of the visual inspection device for the hemispherical shell of this utility model is as follows:

[0037] Two outer shells 6 (each outer shell 6 has four nuts 62 heat-fused on it) are obliquely fitted onto two carriers 5, so that the covering surface 64 of each outer shell 6 matches the positioning inclined surface 521 of the carrier 5. The inner wall of the outer shell 6 with heat dissipation through holes 61 matches the top surface of the inner positioning block 51 of the carrier 5. At this time, the entire outer shell 6 is obliquely set on the carrier 5, the heat dissipation through holes 61 are located on the top of the obliquely placed outer shell 6, the four nuts 62 are located on the curved surface around the heat dissipation through holes 61, and the mounting hole 63 is located at the front end of the carrier 5.

[0038] The longitudinal linear module 22 drives the slide 4, the two carriers 5 and the two housings 6 equipped with nuts 62 to move together along the longitudinal direction of the base 1 to the appropriate position;

[0039] The horizontal linear module 2 drives the vertical linear module 21, the carriage 211, the detection seat 3 and the two cameras 32 to move horizontally together. The vertical linear module 21 drives the carriage 211 and the detection seat 3 on it and the two cameras 32 to move vertically together, adjusting the two cameras 32 to the appropriate position.

[0040] The two cameras 32 first take angled shots of the two nuts 62 at the front end of the left outer casing 6, then move back and take angled shots of the two nuts 62 at the rear end of the left outer casing 6. After that, the two cameras 32 move to the right and repeat taking angled shots of the nuts 62 on the right outer casing 6. Finally, the obtained data is transmitted to the display screen 12, and the data is used to determine OK & NG through the system algorithm.

[0041] This utility model relates to a visual inspection device for a hemispherical shell. A slide table 4, longitudinally slidably connected, is mounted on a base 1. A carrier 5 is mounted on the slide table 4 for precise positioning of the hemispherical shell 6. Two side positioning blocks 52 of the carrier 5 position the mating surface 64 of the hemispherical shell 6, and an inner positioning block 51 of the carrier 5 positions the inner sidewall curved surface of the shell 6, thus precisely positioning the hemispherical shell 6. Simultaneously, a detection seat 3 with horizontal and vertical movement functions is set above the carrier 5, and a camera 32 is obliquely mounted on the detection seat 3. This enables efficient and accurate detection of the installation status (e.g., installation height, depth, and orientation) of multiple nuts 62 on the sidewall curved surface of the speaker hemispherical shell 6.

[0042] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of protection of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the patent application of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A visual inspection device with a hemispherical shell, comprising a base, characterized in that, A slide table is longitudinally slidably connected to the base. At least one carrier for obliquely positioning the hemispherical shell is provided on the slide table. The carrier includes an inner positioning block and two side positioning blocks. The inner positioning block is located between the two side positioning blocks. The top of the inner positioning block is hemispherical and matches the inner sidewall curved surface of the shell. The same side of the two side positioning blocks is inclined to form a positioning slope for matching the cover surface of the shell. A detection seat with horizontal and vertical movement functions is provided above the carrier. A camera for detecting the installation status of multiple nuts on the sidewall curved surface of the shell is obliquely mounted on the detection seat.

2. The visual inspection device for a hemispherical shell according to claim 1, characterized in that, The bottom of the detection seat is provided with a V-shaped detection groove, and the camera is inserted into the inner wall of the detection groove.

3. The visual inspection device for a hemispherical shell according to claim 2, characterized in that, The included angle between the two inner walls of the detection groove is 90 degrees to 120 degrees.

4. The visual inspection device for a hemispherical shell according to claim 1, characterized in that, The carrier also includes two fixing blocks, which are spaced apart and located between the two side positioning blocks, and the inner positioning block is fixed to the top of the two fixing blocks.

5. The visual inspection device for a hemispherical shell according to claim 4, characterized in that, The top surface of the slide table is provided with two second fixing grooves, each of which is arranged along the transverse direction of the slide table, and the two fixing blocks are respectively fixed in the two second fixing grooves.

6. The visual inspection device for a hemispherical shell according to claim 1, characterized in that, The top surface of the slide table is provided with two first fixing grooves, each of which is arranged along the longitudinal direction of the slide table, and the two side positioning blocks are respectively fixed in the two first fixing grooves.

7. The visual inspection device for a hemispherical shell according to claim 1, characterized in that, The number of the carriers is multiple, and they are arranged in a row at intervals on the slide.

8. The visual inspection device for a hemispherical shell according to claim 1, characterized in that, The position of the inner positioning block corresponds to the position of the heat dissipation through hole on the side wall of the outer shell. All nuts are spaced around the heat dissipation through hole and are connected to the through hole of the outer shell by a hot-melt process.

9. The visual inspection device for a hemispherical shell according to claim 1, characterized in that, The top of the base is provided with a longitudinal linear module, and the slide is slidably disposed on the top of the longitudinal linear module.

10. The visual inspection device for a hemispherical shell according to claim 1, characterized in that, A horizontal linear module is fixed on the base by two support columns. A vertical linear module is slidably connected to the horizontal linear module. A slide is slidably connected to the vertical linear module. The detection seat is fixed on the slide.

Images