Visual inspection equipment

Abstract

The utility model discloses a visual inspection equipment, including support, camera, fixed jig, light source and lens, the support is provided on the work bench, fixed jig and camera are provided on the support, the camera is located below the fixed jig, lens ring is provided in the fixed jig, light source is provided in the fixed jig, and the support is provided on the work bench. An acquisition port is formed in the bottom of the fixing jig, the side edge of the part is reflected to the acquisition port through the lens, and image acquisition is conducted through the camera. According to the utility model, through cooperation of the lens and the camera, image information acquisition of the side surface and the bottom surface of a part is realized, and product appearance detection is realized through image comparison. The number of cameras is greatly reduced, the equipment cost is greatly reduced, and meanwhile, the equipment size is reduced.

Description

Technical Field

[0001] This utility model relates to the field of die casting, and in particular to a visual inspection device. Background Technology

[0002] Current processes use multi-station cameras to identify various appearance defects, such as dents, dirt, bubbles, missing materials, deformation, burrs, and excess material. However, the inspected products have small structures, and the defect characteristics on their surfaces are irregular. Multi-station inspection with accompanying cameras always has blind spots, making it impossible to effectively identify appearance defects. Consequently, unidentifiable defective samples are sent to the client.

[0003] Existing visual inspection equipment uses multiple cameras to capture images based on the inspection location of the part, which undoubtedly increases the equipment cost significantly. Furthermore, the parts need to be switched between different workstations, which greatly affects the inspection efficiency. Utility Model Content

[0004] To address the shortcomings of the existing technology, the main objective of this utility model is to overcome these deficiencies and disclose a visual inspection device, comprising a support, a camera, a fixture, a light source, and a lens. The support is mounted on the workbench, the fixture and the camera are mounted on the support, with the camera located below the fixture. The lens is arranged around the fixture, and the light source is also located within the fixture. The bottom of the fixture has a collection port. The lens reflects the side of the part to the collection port, and the image is captured by the camera.

[0005] Furthermore, the lens is provided in eight parts, and the lens is arranged in a regular octagon within the fixing fixture.

[0006] Furthermore, the light source has a ring-shaped structure.

[0007] Furthermore, the bottom of the fixing fixture has an upward-protruding reflective part, which has a frustum-shaped structure.

[0008] Furthermore, the housing of the light source is made of frosted acrylic material.

[0009] Furthermore, the support includes two vertical plates and two horizontal plates, the horizontal plates are fixed to the lower surface of the workbench, the vertical plates are connected to the horizontal plates, and the fixing fixture is installed on the vertical plates.

[0010] Furthermore, the vertical plate is provided with a number of fixing holes at vertical intervals, and the horizontal plate is connected to the corresponding fixing holes by screws.

[0011] Furthermore, the horizontal plate is provided with a waist-shaped hole.

[0012] Furthermore, the camera is fixed to the bracket via a connecting plate, and the connecting plate has a vertically shaped hole.

[0013] Furthermore, a supplementary light is provided on the side of the fixing fixture.

[0014] The beneficial effects achieved by this utility model are as follows:

[0015] This invention uses a lens and a camera to capture image information of the sides and bottom of parts, and performs product appearance inspection through image comparison. This significantly reduces the number of cameras, greatly lowers equipment costs, and also reduces the size of the equipment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a visual inspection device according to the present invention;

[0017] Figure 2 This is a diagram illustrating the connection between the camera and the bracket.

[0018] Figure 3 for Figure 1 The main view;

[0019] Figure 4 for Figure 3 AA section view;

[0020] Figure 5 This is a schematic diagram showing the connection between the fixture, lens, and light source;

[0021] The attached figures are labeled as follows:

[0022] 1. Bracket, 2. Camera, 3. Fixture, 4. Light source, 5. Lens, 6. Connecting plate, 7. Fill light, 9. Parts, 11. Vertical plate, 12. Horizontal plate, 13. Fixing hole, 31. Acquisition port, 32. Reflector. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0024] A visual inspection device, such as Figures 1-5As shown, the device includes a bracket 1, a camera 2, a fixture 3, a light source 4, and a lens 5. The bracket 1 is set on the workbench 1, the fixture 3 and the camera 2 are set on the bracket 1, and the camera 2 is located below the fixture 3. The lens 5 is arranged in a ring inside the fixture 3, and the light source 4 is set inside the fixture 3. The bottom of the fixture 3 is provided with a collection port 31. The lens 5 reflects the side of the part 9 to the collection port 31, and the image is acquired by the camera 2.

[0025] When using, such as Figures 1-5 As shown, the interior of the fixture 3 is illuminated by a light source to ensure clear image acquisition. The camera 2 faces the acquisition port 31 to capture images. The side image of part 9 is reflected to the acquisition port 31 by the surrounding lens 5, and then captured by the camera 2. Through this structure, utilizing the image reflection principle of the lens 5, only one camera assembly is needed to capture images of the circumference and bottom of part 9.

[0026] In one embodiment, such as Figures 1-5 As shown, eight lenses 5 are arranged in a regular octagon within the fixture 3. The number of lenses 5 is not limited to eight; however, in this embodiment, setting the number of lenses 5 to eight, and their regular octagonal distribution, is the preferred option. The eight lenses 5 allow for the acquisition of data from the sides and side connections, increasing the acquisition range and improving detection accuracy.

[0027] In one embodiment, such as Figures 1-5 As shown, the light source 4 has a ring-shaped structure, which allows the light to be evenly irradiated within the fixed fixture 3.

[0028] In one embodiment, such as Figures 1-5 As shown, the housing of light source 4 is made of frosted acrylic material, which makes the light source diffuse and thus makes the light soft.

[0029] In one embodiment, such as Figures 1-5 As shown, the bottom of the fixing fixture 3 has an upward-protruding reflective part 32, which has a frustum-shaped structure. The reflective part 32 reflects the light source. In particular, the reflective part 32 diffuses the light, making the light within the fixing fixture 3 more uniform.

[0030] In one embodiment, such as Figures 1-5 As shown, the support 1 includes two vertical plates 11 and two horizontal plates 12. The horizontal plates 12 are fixed to the lower surface of the workbench 1, and the vertical plates 11 are fixedly connected to the horizontal plates 12 respectively. The fixing fixture 3 is installed on the top of the vertical plates 11 for fixing.

[0031] In the above embodiments, such as Figures 1-5As shown, several fixing holes 13 are vertically spaced on the vertical plate 11. The horizontal plate 12 is connected to the corresponding fixing holes on the vertical plate 11 by screws, thereby adjusting the height of the vertical plate 11. The horizontal plate 12 is provided with waist-shaped holes, thereby adjusting the horizontal position of the vertical plate 11 and the distance between the two vertical plates 11.

[0032] In the above embodiments, such as Figures 1-5 As shown, the camera 2 is fixed to the bracket 1 via the connecting plate 6. Specifically, the connecting plate 6 is provided with an oblong hole, and the connecting plate 6 is fixed to the fixing hole 13 by screws. The height of the connecting plate 6 can be adjusted, thereby realizing the adjustment of the height of the camera 2.

[0033] In one embodiment, such as Figures 1-5 As shown, a supplementary light 7 is provided on the side of the fixing fixture 3.

[0034] When using this utility model, such as Figures 1-5 As shown, part 9 is picked up by a suction cup gripper and moved above the fixture 3. The side of part 9 is reflected to the acquisition port by the lens 5, and then the camera 2 acquires images of the side and bottom of part 9.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of implementation of the present utility model. Any modifications or equivalent substitutions to the present utility model without departing from the spirit and scope thereof should be covered within the protection scope of the claims of the present utility model.

Claims

1. A vision inspection apparatus, characterized by, Including first support, camera, fixture, light source and lens, the support is arranged on the workbench, the fixture and the camera are arranged on the support, and the camera is below the fixture, the lens is arranged in the fixture, the light source is arranged in the fixture, the bottom of the fixture is provided with a collection port, the side edge of the part is reflected to the collection port by the lens, and the image is collected by the camera.

2. The vision inspection apparatus of claim 1, wherein The lens is provided with eight pieces, and the lens is arranged in the fixture in the form of regular octagon.

3. The vision inspection apparatus of claim 1, wherein The light source is a ring structure.

4. The vision inspection apparatus of claim 1, wherein The bottom of the fixture is upwardly convexly provided with a reflection part, and the reflection part is in the form of a conical frustum.

5. The vision inspection apparatus of claim 1, wherein The shell of the light source is frosted acrylic material.

6. The vision inspection apparatus of claim 1, wherein The support includes two vertical plates and two horizontal plates, the horizontal plates are fixed on the lower surface of the workbench, the vertical plates are connected with the horizontal plates, and the fixture is installed on the vertical plates.

7. A vision inspection apparatus according to claim 6, wherein A plurality of fixing holes are vertically arranged on the vertical plates, and the horizontal plates are connected with the corresponding fixing holes through screws.

8. The vision inspection apparatus of claim 6, wherein A waist-shaped hole is arranged on the horizontal plate.

9. The vision inspection apparatus of claim 6, wherein The camera is fixed with the support through a connecting plate, and a waist-shaped hole is vertically arranged on the connecting plate.

10. The vision inspection apparatus of claim 1, wherein A fill light is arranged on the side edge of the fixture.

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