Peripheral side appearance detection light source compatible with detected products of different sizes

Abstract

A peripheral side appearance detection light source compatible with detected products of different sizes comprises a base, a light source channel is formed in the middle of the base, first reflectors are arranged on the periphery of the light source channel, an adjustable light source module is arranged on the outer side of each first reflector, and the adjustable light source modules are rotatably arranged on the base. A linkage adjusting reflection module is arranged at the top or above the light source channel, the linkage adjusting reflection module comprises an adjusting annular plate, a height adjusting assembly arranged on at least one side of the adjusting annular plate and an adjusting reflection assembly arranged on the periphery of the adjusting annular plate, and the height adjusting assembly comprises a sliding piece and a height positioning piece; the adjusting reflection assembly comprises a hinge base arranged on the adjusting annular plate, a rotating connecting rod rotationally connected to the hinge base, a supporting rod arranged on the base and a second reflector rotationally connected with the rotating connecting rod and the supporting rod. The light source is convenient to adjust, the four reflection assemblies can be linked at a time for angle adjustment, and the efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of appearance detection light sources, and in particular to a light source for detecting the appearance of the sides of products to be detected that is compatible with products of different sizes. Background Art

[0002] In the field of machine vision, there are two ways to detect the side appearance of a product:

[0003] 1. Step-by-step light source detection, that is, the appearance detection light source device first performs light source detection on one side of the product under test, and then rotates the product under test through the rotating device under the product under test, and then performs light source detection on the next side of the product under test;

[0004] 2. Integral light source detection, that is, the appearance detection light source device performs light source detection on the overall plane of the product being tested, and then detects and processes each side of the overall plane in the machine image program.

[0005] Compared with step-by-step light source detection, integrated light source detection is more efficient and can save a lot of time in automated detection. The industry usually adopts the integrated light source detection method.

[0006] However, the integrated light source detection has the following disadvantages:

[0007] 1. The light source is set inside the reflector, and the light source cannot be adjusted or the light source device needs to be removed before adjustment, which makes the adjustment of the light source difficult;

[0008] 2. The reflectors of this integrated light source detection need to be adjusted one by one, which is complicated to debug and has poor efficiency;

[0009] Therefore, because of the above two shortcomings, after the integrated light source detection is debugged, it is generally used to detect products of a certain size, which is not universal. If the detection is forced on products of different sizes, the debugging will be very complicated and cumbersome, which will seriously affect the detection efficiency. Summary of the invention

[0010] The purpose of the present invention is to overcome the above-mentioned defects in the prior art and provide a light source for detecting the appearance of the sides of the tested products of different sizes, which is used to solve the following two problems:

[0011] First, the adjustable light source module is located outside the first reflector of the light source channel, and the angle can be adjusted easily;

[0012] Second, the adjustment ring plate of the linkage adjustment reflection module only needs to adjust the height of the adjustment ring plate to adjust the angle of the second reflectors of the four adjustment reflection components at one time. The angle adjustment of the second reflector is simple, which greatly saves the detection efficiency.

[0013] In summary, the first and second aspects facilitate user adjustment, so that the device can be compatible with tested products of different sizes for use.

[0014] To achieve the above-mentioned objectives, the present invention provides a light source for side appearance inspection of products under test of different sizes, comprising a base, a light source channel being opened in the middle of the base, first reflectors being respectively installed around the light source channel, an adjustable light source module being installed on the outer side of each of the first reflectors, the adjustable light source module being rotatably disposed on the base, a linkage adjustment reflection module being installed on the top or above the light source channel, the linkage adjustment reflection module comprising an adjustment annular plate, a height adjustment component installed on at least one side of the adjustment annular plate, and an adjustment reflection component installed around the adjustment annular plate, the height adjustment component comprising a sliding part for facilitating the sliding of the adjustment annular plate and a height positioning part for fixing the adjustment annular plate, the adjustment reflection component comprising a hinge seat installed on the adjustment annular plate, a rotating connecting rod rotatably connected to the hinge seat, a supporting rod installed on the base, and a second reflector rotatably connected to the rotating connecting rod and the supporting rod, respectively.

[0015] Preferably, an outer cover is installed on the top of the base, and the outer cover covers the linkage adjustment reflection module.

[0016] Preferably, a shooting station for placing a camera lens is provided directly above the light source channel, and a placement station for placing products is provided at the bottom or directly below the light source channel.

[0017] Preferably, placement grooves for placing and adjusting the angle of the adjustable light source module are respectively provided on the outer sides of the base.

[0018] Preferably, a first rotating shaft groove is respectively provided at both ends of the placement groove, and an arc-shaped mounting groove is installed on one side of the first rotating shaft groove. The rotating shaft is inserted through the first rotating shaft groove so that the adjustable light source module can be rotatably set on the placement groove, and the bolt is screwed into the arc-shaped mounting groove so that the adjustable light source module is fixedly set on the placement groove.

[0019] Preferably, the sliding part of the height adjustment assembly includes a guide column inserted on the base and a bushing mounted on one side of the adjusting annular plate, the bushing is slidably connected to the guide column, and the height positioning part includes a positioning column inserted on the base and a positioning bolt threadedly connected to one side of the adjusting annular plate, when the height of the adjusting annular plate is fixed, the positioning bolt abuts against one end of the positioning column.

[0020] Preferably, the number of the hinge seat, the rotating connecting rod and the supporting rod of the adjustable reflection component are two each.

[0021] Preferably, it also includes an annular convex wall arranged on the top of the light source channel, the adjustment annular plate is slidably connected to the annular convex wall, the hinge seat includes a mounting groove for one end of the rotating connecting rod to be placed in, a mounting bolt inserted into the mounting groove and rotatably connected to one end of the rotating connecting rod, and a retaining spring clamped at one end of the mounting bolt, and an adjustment window is opened on one side of the casing to facilitate height adjustment of the height adjustment component.

[0022] Preferably, the angle adjustment range of the adjustable light source module is 0 degrees to 90 degrees.

[0023] Preferably, the angle adjustment range of the second reflector is 0 degrees to 90 degrees.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention is provided with an adjustable light source module, which is arranged on the outside of the first reflector of the light source channel. It has the advantage of convenient angle adjustment. At the same time, the adjustable light source module with a certain angle on all sides is adopted to meet the lighting requirements of the sides of the tested product.

[0026] 2. The present invention is provided with a linkage adjustment reflection module, which can adjust the height of the adjusting annular plate up and down, thereby linking the second reflectors of the four reflection components at one time to adjust the angles, which makes debugging simple and the use and detection efficiency fast.

[0027] 3. The optical path layout of the present invention adjusts the angle of the adjustable light source module so that the adjustable light source module illuminates the side of the product under test. Then, the side of the product under test is reflected onto the first reflector. Then, the light on the first reflector is reflected onto the second reflector with a certain angle. Finally, the light on the plane of the product under test and the second reflector is photographed by the camera lens. This optical path layout can greatly improve the light contrast, so that the camera lens can clearly capture the plane of the product under test on the one hand, and on the other hand, the four sides of the product under test have good light contrast.

[0028] 4. In summary, the present invention is a light source for side appearance inspection that is compatible with products of different sizes. The above points 1 and 2 make it easier for users to adjust and find the most suitable brightness, thereby greatly improving the efficiency of appearance inspection, and effectively being compatible with products of different sizes for use, avoiding wasting too much angle debugging and measurement design costs, and greatly saving test time.

[0029] The optical path layout of the third point above makes the appearance inspection quality of the surrounding side appearance inspection light source higher, and is further effectively compatible with the appearance inspection of products of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a structural schematic diagram of one viewing angle of a light source for peripheral side appearance inspection of products of different sizes provided by an embodiment of the present invention;

[0032] Figure 2 It is a structural schematic diagram of another viewing angle of a peripheral side appearance inspection light source compatible with products of different sizes provided by an embodiment of the present invention;

[0033] Figure 3 It is a front section optical path principle diagram of a light source for detecting the appearance of the sides of a product under test of different sizes, provided by an embodiment of the present invention;

[0034] Figure 4 It is a structural schematic diagram of a light source for detecting the appearance of the sides of products under test of different sizes provided by an embodiment of the present invention, with the outer cover omitted;

[0035] Figure 5 It is a structural schematic diagram of a light source for detecting the appearance of the sides of products under test of different sizes provided by an embodiment of the present invention, omitting the outer cover and the linkage adjustment reflection module;

[0036] Figure 6 It is a structural schematic diagram of a linkage adjustment reflection module provided in an embodiment of the present invention.

[0037] Included in the figure are:

[0038] 1. Base; 11. Adjustable light source module; 12. First reflector; 13. Light source channel; 14. Linkage adjustment reflector module; 141. Adjustment ring plate; 142. Height adjustment component; 1421. Sliding member; 14211. Guide column; 14212. Bushing; 1422. Height positioning member; 14221. Positioning column; 14222. Positioning bolt; 143. Adjustment reflector component; 1431. Hinge seat; 14311. Mounting groove; 14312. Mounting bolt; 14313. Retaining spring; 1432. Rotating connecting rod; 1433. Support rod; 1434. Second reflector; 16. Annular convex wall; 17. Placement groove; 18. First shaft groove; 19. Arc-shaped installation groove; 2. Outer cover; 21. Adjustment window; 3. Shooting station; 4. Placement station. DETAILED DESCRIPTION

[0039] The technical scheme in this embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in this embodiment of the present invention. Obviously, the described embodiment is one embodiment of the present invention, not all embodiments of the present invention. Based on this embodiment of the present invention, all other embodiments of the present invention obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figures 1 to 6 The embodiment of the present invention provides a light source for side appearance inspection of products under test of different sizes, including a base 1, a light source channel 13 is provided in the middle of the base 1, first reflectors 12 are respectively installed around the light source channel 13, and an adjustable light source module 11 is installed outside each first reflector 12, and the adjustable light source module 11 is rotatably arranged on the base 1, and a linkage adjustment reflection module 14 is installed on the top or above the light source channel 13, and the linkage adjustment reflection module 14 includes an adjustment ring plate 141, and a height adjustment group installed on at least one side of the adjustment ring plate 141. The height adjustment component 142 and the adjustment reflection component 143 installed around the adjustment annular plate 141, the height adjustment component 142 includes a sliding component 1421 for facilitating the sliding of the adjustment annular plate 141 and a height positioning component 1422 for fixing the adjustment annular plate 141, the adjustment reflection component 143 includes a hinge seat 1431 installed on the adjustment annular plate 141, a rotating connecting rod 1432 rotatably connected to the hinge seat 1431, a supporting rod 1433 installed on the base 1 and a second reflecting mirror 1434 rotatably connected to the rotating connecting rod 1432 and the supporting rod 1433 respectively.

[0041] Among them, the first reflecting mirror is embedded in the inner side of the base 1, and the second reflecting mirror is installed through a mirror seat, and the mirror seat is rotatably connected to the rotating connecting rod 1432 and the supporting rod 1433 respectively.

[0042] An outer cover 2 is installed on the top of the base 1, and the outer cover 2 covers the linkage adjustment reflection module 14. The outer cover 2 can firstly protect the optical channel, the first reflector 12 and the second reflector 1434 to prevent external foreign matter from affecting the first reflector 12 and the second reflector 1434, secondly improve the overall structural strength, and thirdly, can focus light so that the light reflected by the first reflector 12 and the second reflector 1434 can be more focused on the camera lens.

[0043] A shooting station 3 for placing a camera lens is provided directly above the light source channel 13 , and a placement station 4 for placing a product to be tested is provided at the bottom or directly below the light source channel 13 .

[0044] Placement slots 17 for placing and adjusting the angle of the adjustable light source module 11 are respectively arranged on the outer sides of the base 1 .

[0045] A first rotating shaft groove 18 is respectively provided at both ends of the placement groove 17, and an arc-shaped mounting groove 19 is installed on one side of the first rotating shaft groove 18. The rotating shaft is inserted through the first rotating shaft groove 18 so that the adjustable light source module 11 can be rotatably set on the placement groove 17, and the bolt is screwed into the arc-shaped mounting groove 19 so that the adjustable light source module 11 is fixedly set on the placement groove 17.

[0046] The sliding member 1421 of the height adjustment assembly 142 includes a guide column 14211 inserted on the base 1 and a bushing 14212 sleeved on one side of the adjusting annular plate 141, the bushing 14212 is slidably connected to the guide column 14211, and the height positioning member 1422 includes a positioning column 14221 inserted on the base 1 and a positioning bolt 14222 threadedly connected to one side of the adjusting annular plate 141, when the height of the adjusting annular plate 141 is fixed, the positioning bolt 14222 is pressed against one end of the positioning column 14221.

[0047] The number of the hinge seat 1431 , the rotating connecting rod 1432 and the supporting rod 1433 of the adjusting reflection component 143 are all two.

[0048] An embodiment of the present invention that is compatible with tested products of different sizes also includes an annular convex wall 16 arranged on the top of the light source channel 13, an adjusting annular plate 141 is slidably connected to the annular convex wall 16, a hinge seat 1431 includes a mounting groove 14311 for one end of a rotating connecting rod 1432 to be placed in, a mounting bolt 14312 inserted into the mounting groove 14311 and rotatably connected to one end of the rotating connecting rod 1432, and a retaining spring 14313 clamped on one end of the mounting bolt 14312, and an adjustment window 21 is opened on one side of the outer cover 2 to facilitate height adjustment of the height adjustment component 142.

[0049] The angle adjustment range of the adjustable light source module 11 is 0 degrees to 90 degrees.

[0050] The angle adjustment range of the second reflector 1434 is 0 degrees to 90 degrees.

[0051] An operating principle of an embodiment of the present invention that is compatible with tested products of different sizes is:

[0052] 1. Place the product to be tested on the placement station 4, place the camera lens on the shooting station 3, and observe the imaging of the camera lens;

[0053] 2. Adjust the angle of the adjustable light source module 11 (the maximum adjustment angle range is 0-90 degrees) so that the adjustable light source module 11 is aligned with the side of the product to be tested. First, unscrew the bolts on the arc-shaped mounting groove 19 of the placement groove 17 of the base 1, and then adjust the adjustable light source module 11 to the best angle through the shaft on the first shaft groove 18. After confirming the imaging condition of the camera lens, lock the bolts on the arc-shaped mounting groove 19 to fix the adjustable light source module 11 on the placement groove 17;

[0054] 3. Adjust the angle of the linkage adjustment reflection module 14 (the maximum adjustment angle range is 0-90 degrees).

[0055] a. Adjust the height of the adjusting annular plate 141 through the height adjustment component 142, find the adjustment window 21 of the outer cover 2, remove or loosen the bolts of the height adjustment component 142, and slide the adjusting annular plate 141 up and down by hand (the bushing 14212 will slide up and down on the guide column 14211, and the adjusting annular plate 141 will slide up and down on the annular convex wall 16). At this time, the following action changes will occur in step b. After the angle of the linkage adjustment reflection module 14 is adjusted, tighten the bolts against one end of the positioning column 14221. At this time, the adjusting annular plate 141 is fixed;

[0056] b. When the annular plate 141 is adjusted to slide up and down, the rotating link 1432 will be driven to move. However, the support rod 1433 is mounted on the base 1, and the support rod 1433 is fixed, so that the second reflector 1434 will not be moved by the rotating link 1432, but can only be rotated by the rotating link 1432, thereby realizing the linkage adjustment angle of the four second reflectors 1434 on the annular plate 141;

[0057] 4. The camera lens takes photos of the product under test.

[0058] An embodiment of the present invention is a light source for detecting the appearance of the sides of products under test that is compatible with products of different sizes. First, its optical path layout makes the imaging quality of the appearance detection of the sides of the products under test clearer, with more contrast and higher detection quality. Second, its adjustable light source module 11 has an easy-to-adjust angle, and its four second reflectors of the linkage-adjustable reflection module 14 can be adjusted in a linkage manner at one time, which makes the angle adjustment convenient, the adjustment simple, and the detection efficiency high.

[0059] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A light source for detecting the appearance of the sides of products under test of different sizes, characterized in that: The invention comprises a base (1), wherein a light source channel (13) is provided in the middle of the base (1), first reflectors (12) are respectively arranged around the light source channel (13), an adjustable light source module (11) is arranged outside each of the first reflectors (12), the adjustable light source module (11) is rotatably arranged on the base (1), a linkage adjustment reflection module (14) is arranged on the top or above the light source channel (13), and the linkage adjustment reflection module (14) comprises an adjustment annular plate (141), a height adjustment component (142) arranged on at least one side of the adjustment annular plate (141), and a height adjustment component (142) arranged on the adjustment annular plate (141). 1) an adjustable reflective assembly (143) arranged around the base (1), the height adjustment assembly (142) comprising a sliding member (1421) for facilitating the sliding of the adjustable annular plate (141) and a height positioning member (1422) for fixing the adjustable annular plate (141), the adjustable reflective assembly (143) comprising a hinge seat (1431) mounted on the adjustable annular plate (141), a rotating connecting rod (1432) rotatably connected to the hinge seat (1431), a supporting rod (1433) mounted on the base (1), and a second reflector (1434) rotatably connected to the rotating connecting rod (1432) and the supporting rod (1433), respectively.

2. According to claim 1, a light source for detecting the appearance of the sides of the products under test that is compatible with different sizes is characterized in that: An outer cover (2) is arranged on the top of the base (1), and the outer cover (2) covers the linkage adjustment reflection module (14).

3. According to claim 1, a light source for detecting the appearance of the sides of the products under test that is compatible with different sizes is characterized in that: A shooting station (3) for placing a camera lens is provided directly above the light source channel (13), and a placement station (4) for placing a product to be tested is provided at the bottom or directly below the light source channel (13).

4. According to claim 1, a light source for detecting the appearance of the sides of the products under test that is compatible with different sizes is characterized in that: The base (1) is provided with placement grooves (17) on the outer sides thereof for placing the adjustable light source module (11) and adjusting the angle thereof.

5. The light source for detecting the appearance of the sides of the products under test according to claim 4, which is compatible with the products under test of different sizes, is characterized in that: The two ends of the placement slot (17) are respectively provided with a first rotating shaft slot (18), and one side of the first rotating shaft slot (18) is provided with an arc-shaped mounting slot (19). The rotating shaft is inserted through the first rotating shaft slot (18) so that the adjustable light source module (11) can be rotatably arranged on the placement slot (17), and the bolt is screwed into the arc-shaped mounting slot (19) so that the adjustable light source module (11) is fixedly arranged on the placement slot (17).

6. The light source for detecting the appearance of the sides of the products under test of claim 1, which is compatible with the products under test of different sizes, is characterized in that: The sliding member (1421) of the height adjustment assembly (142) comprises a guide column (14211) inserted on the base (1) and a bushing (14212) sleeved on one side of the adjustment annular plate (141); the bushing (14212) is slidably connected to the guide column (14211); the height positioning member (1422) comprises a positioning column (14221) inserted on the base (1) and a positioning bolt (14222) threadedly connected to one side of the adjustment annular plate (141); when the height of the adjustment annular plate (141) is fixed, the positioning bolt (14222) is pressed against one end of the positioning column (14221).

7. The light source for detecting the appearance of the sides of the products under test of claim 1, which is compatible with the products under test of different sizes, is characterized in that: The number of the hinge seat (1431), the rotating connecting rod (1432) and the supporting rod (1433) of the adjusting reflection component (143) are all two.

8. The light source for detecting the appearance of the sides of the products under test of claim 1, which is compatible with the products under test of different sizes, is characterized in that: The hinge assembly (1431) further comprises an annular convex wall (16) disposed at the top of the light source channel (13); the adjusting annular plate (141) is slidably connected to the annular convex wall (16); the hinge seat (1431) comprises a mounting groove (14311) for receiving one end of the rotating connecting rod (1432); a mounting bolt (14312) inserted into the mounting groove (14311) and rotatably connected to one end of the rotating connecting rod (1432); and a retaining spring (14313) clamped at one end of the mounting bolt (14312); and an adjusting window (21) is provided on one side of the outer cover (2) for facilitating height adjustment of the height adjustment component (142).

9. The light source for detecting the appearance of the sides of the products under test of claim 1, which is compatible with the products under test of different sizes, is characterized in that: The adjustable light source module (11) has an angle adjustment range of 0 degrees to 90 degrees.

10. The light source for detecting the appearance of the sides of the products under test of claim 1, which is compatible with the products under test of different sizes, is characterized in that: The angle adjustment range of the second reflector (1434) is 0 degrees to 90 degrees.

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