Thickness detection device and thickness detection method

Abstract

The present invention discloses a thickness detection apparatus and a thickness detection method. [Solution] The thickness detection device includes a mounting base, an image collecting device, and a light source, the mounting base is provided with a first mounting groove and a second mounting groove, the first mounting groove extends along a first direction, the second mounting groove extends along a second direction, the image collecting device is movably mounted in the first mounting groove, a predetermined included angle is formed between the imaging direction of the image collecting device and the second direction, the predetermined included angle increases and decreases with the movement of the image collecting device along the first direction, the light source is movably mounted in the second mounting groove, the light source is movable along the second direction to move closer to or away from the detected member. Compared with the prior art, the present invention employs a separate light source and image collecting device, which makes it easy to adjust and multiplex the devices, and eliminates the need for scanning when detecting thickness, shortening the detection time and improving the detection efficiency.

Description

[Technical Field]

[0001] The present invention relates to the technical field of thickness detection devices, and more particularly to a thickness detection device and a thickness detection method. [Background technology]

[0002] In the prior art, the thickness of a product is detected by using an integrated laser and camera. The laser scans the product by emitting a line laser perpendicularly, and the camera is positioned at an angle to capture the image of the product illuminated by the laser and obtain point cloud data. After the scan is completed, the point cloud data of the thickness measurement area is calculated to obtain the thickness measurement result.

[0003] Conventional thickness detection structures and methods have the following deficiencies: 1. Laser scanning takes a long time and detection efficiency is low. 2. The integrated structure of the laser and camera has a narrow application range, and when detecting different types of products, if the camera, lens or laser is not suitable, the equipment needs to be replaced. Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE INVENTION The present invention aims to provide a thickness detection device and a thickness detection method to solve the technical problems in the prior art. [Means for solving the problem]

[0005] In a first aspect, the present invention provides a thickness detection apparatus, the thickness detection apparatus including a mounting seat, an image acquisition device, and a light source; The mounting seat is provided with a first mounting groove and a second mounting groove, the first mounting groove extending along a first direction, and the second mounting groove extending along a second direction; the image collecting device is movably mounted in the first mounting groove, a predetermined angle is formed between an imaging direction of the image collecting device and the second direction, and the predetermined angle increases or decreases as the image collecting device moves along the first direction; The light source is movably attached to the second attachment groove, and is movable along the second direction so as to move toward or away from the member to be detected.

[0006] In the thickness detection device as described above, preferably, the first mounting groove is an arc-shaped groove, and the first direction is an extension direction of the arc-shaped groove.

[0007] In the thickness detecting device as described above, preferably, two first mounting grooves are provided, and the two first mounting grooves are provided in parallel.

[0008] In the thickness detecting device as described above, preferably, the second mounting groove is a groove extending along the direction of gravity, and the second direction is the extension direction of the groove.

[0009] In the thickness detection device as described above, preferably, the image collection device is mounted on a first fixed base, and a first fixing hole is provided on the surface of the first fixed base, and the first fixing hole is provided corresponding to the first mounting groove, and is used for threadably fixing the bolt member with the first fixing hole after the bolt member passes through the first mounting groove.

[0010] In the thickness detection device as described above, preferably, the light source is provided on a second fixing base, and a second fixing hole is provided on the surface of the second fixing base, and the second fixing hole is provided corresponding to the second mounting groove, and is used to form a screw-fitting fixation with the second fixing hole after the bolt member passes through the second mounting groove.

[0011] A thickness detection apparatus as described above, wherein preferably the image acquisition device comprises a camera or video camera.

[0012] The present invention further provides a thickness detection method for performing thickness detection using the above-mentioned thickness detection device, the thickness detection method comprising: Step S100 of placing a detection target member directly under the light source; Step S101: changing the imaging direction of the image collecting device by adjusting the position where the image collecting device is fixed in the first mounting groove; Step S102: changing the height of the light source by adjusting the position where the light source is fixed in the second mounting groove; The light source irradiates the surface of the detected member and a reference surface of known height to form a light spot, the light spot is within the imaging range of the image collection device, the image collection device collects an image of the light spot, and calculates the thickness of the detected member based on the position of the light spot on the surface of the detected member and the reference surface in the image.

[0013] In a second aspect, the present invention provides a thickness detection apparatus, the thickness detection apparatus including a mounting seat, a light source, and an image acquisition device; The mounting seat is provided with a first mounting groove and a second mounting groove, the first mounting groove extending along a first direction, and the second mounting groove extending along a second direction; the light source is movably mounted in the first mounting groove, a predetermined angle is formed between the irradiation direction of the light beam emitted from the light source and the second direction, and the predetermined angle increases or decreases as the light source moves along the first direction; The image collecting device is movably attached to the second mounting groove, and the image collecting device is movable along the second direction so as to move toward or away from the member to be detected.

[0014] The present invention further provides a thickness detection method for performing thickness detection using the above-mentioned thickness detection device, the thickness detection method comprising: Step S100: arranging a detection target member directly below the image acquisition device; Step S101: changing the irradiation direction of the light beam emitted from the light source by adjusting the position where the light source is fixed in the first mounting groove; Step S102: changing the height of the image collecting device by adjusting the position where the image collecting device is fixed in the second mounting groove; The light source irradiates the surface of the detected member and a reference surface of known height to form a light spot, the light spot is within the imaging range of the image collection device, the image collection device collects an image of the light spot, and calculates the thickness of the detected member based on the position of the light spot on the surface of the detected member and the reference surface in the image. [Effects of the Invention]

[0015] Compared to the prior art, the present invention employs a separate light source and image collection device, which facilitates adjustment and multiplexing of the device; the light source irradiates the surface of the member to be detected and a reference surface whose height is known to form a light spot; the image collection device is configured to collect an image of the light spot and calculate the thickness of the member to be detected based on the position of the light spot on the surface of the member to be detected and on the reference surface in the image; thereby eliminating the need for scanning when detecting the thickness, shortening the detection time and improving detection efficiency. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a perspective view of an entire structure according to a first embodiment of the present invention. [Figure 2] 1 is a schematic diagram showing a configuration of a mounting seat according to a first embodiment of the present invention. [Figure 3] 1 is a perspective view of a first fixed base according to a first embodiment of the present invention. [Figure 4] 2 is a perspective view 2 of a first fixed base according to the first embodiment of the present invention. FIG. [Figure 5] 1 is a perspective view of a second fixed base according to a first embodiment of the present invention. [Figure 6] 2 is a perspective view 2 of a second fixed base according to the first embodiment of the present invention. FIG. [Figure 7] FIG. 10 is a perspective view of the overall configuration according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0017] The embodiments described below with reference to the drawings are merely illustrative and are intended to explain the present invention and cannot be construed as limiting the present invention.

[0018] Example 1 As shown in FIGS. 1 and 2, this embodiment provides a thickness detection device, which includes a mounting base 10, an image acquisition device 20, and a light source 30.

[0019] The mounting seat 10 is provided with a first mounting groove 11 and a second mounting groove 12, the first mounting groove 11 extending along a first direction, and the second mounting groove 12 extending along a second direction.

[0020] The image collection device 20 is movably mounted in the first mounting groove 11, and a predetermined angle is formed between the imaging direction of the image collection device 20 and the second direction, and the predetermined angle increases or decreases as the image collection device 20 moves along the first direction. By adjusting different mounting positions of the image collection device 20 in the first mounting groove 11, the imaging direction of the image collection device 20 can be changed, thereby adapting to the detection needs of different types and structures of detectable members 60.

[0021] The light source 30 is movably mounted in the second mounting groove 12, and the light source 30 can move along the second direction so as to move closer to or away from the detected member 60. By adjusting the position at which the light source 30 is fixed in the second mounting groove 12, the working distance between the light source 30 and the detected member 60 can be changed, thereby adapting to the detection needs of different types and structures of detected members 60.

[0022] Based on the above embodiment, the working process of the present invention is as follows:

[0023] After identifying a fiducial reference (not shown) provided with a reference surface of known height and adjusting the positions of the image acquisition device 20 and the light source 30, the light source 30 irradiates the surface of the detected member 60 to form a real-time light spot and irradiates the reference surface to form a reference light spot, and the image acquisition device 20 collects images of the real-time light spot and the reference light spot, and calculates the thickness of the detected member 60 based on the positions of the real-time light spot and the reference light spot.

[0024] The adoption of a separate image acquisition device 20 and light source 30 facilitates the adjustment and multiplexing of the thickness detection device, and eliminates the need for scanning when detecting thickness, thereby shortening the detection time and improving the detection efficiency.

[0025] Furthermore, the light beam direction of the light source 30 is perpendicular to the plane on which the detected member 60 is located, and the detected member 60 is mounted on a horizontally extending support surface, and the detected member 60 is located directly below the light source 30, so that the position of the light spot is constant. As will be understood by those skilled in the art, the light beam direction of the light source 30 and the plane on which the detected member 60 is located may form an included angle within a certain range, in which case real-time light spots on multiple planes can be obtained, and this is not limited thereto.

[0026] In the embodiment of the present application, as shown in FIG. 2, the mounting seat 10 is composed of a bottom plate 13, side plates 14, and a reinforcing plate 15. The bottom plate 13 has a plurality of third mounting grooves 16 formed therein. The bottom plate 13 is fixed to the table surface through the engagement of bolt members with the third mounting grooves 16. The third mounting grooves 16 have a waist-shaped structure, which makes it easy to adjust the fixing position of the mounting seat 10, fix the mounting seat 10 in an appropriate position, and adapt to the detected member 60 that has moved from the conveying part such as the flow path or the turntable. The side plates 14 are formed on the bottom plate 13. The reinforcing plate 15 is fixed to the base plate 13, the bottom surface of the reinforcing plate 15 is connected to the bottom plate 13, and one side surface of the reinforcing plate 15 is connected to the side plate 14, thereby improving the overall strength of the mounting seat 10 and preventing the side plate 14 from tilting out of place. The first mounting groove 11 and the second mounting groove 12 are both provided in the side plate 14, and the reinforcing plate 15 is further provided with a plurality of lightening holes 17, which are used to reduce the overall weight and can be used for wiring to prevent disruption of the harness layout.

[0027] In an embodiment of the present application, as shown in Figures 1 and 2, the first mounting groove 11 is an arc-shaped groove, the first direction is the extension direction of the arc-shaped groove, the first mounting groove 11 is located diagonally above the detected member 60, the first direction is the direction of the arc-shaped curve, and by moving the position of the image collecting device 20 within the first mounting groove 11, the angle of the imaging direction of the image collecting device 20 can be adjusted, so that real-time light spot information of multiple surfaces can be obtained, thereby adapting to the detection needs of different types and structures of detected members 60. As will be understood by those skilled in the art, the first mounting groove 11 can also be a groove-type with other structures, as long as the imaging angle of the image collecting device 20 can be changed, and is not limited thereto.

[0028] Furthermore, depending on the type of the detected member 60 and the measurement needs, one or more image collecting devices 20 may be provided, and each image collecting device 20 is provided with a corresponding first mounting groove 11 for position fixing and angle adjustment. When two image collecting devices 20 are provided, two first mounting grooves 11 are provided, and the two first mounting grooves 11 are arranged in parallel, with one image collecting device 20 provided in each first mounting groove 11, and each image collecting device 20 can independently adjust its imaging angle. In this way, real-time light spot information at multiple positions on the detected member 60 can be obtained, and thickness values ​​at the multiple positions can be calculated. The obtained multiple thickness values ​​can be averaged to obtain the average thickness, thereby improving detection accuracy.

[0029] In an embodiment of the present application, as shown in FIGS. 1 and 2, the second mounting groove 12 is a groove extending in the direction of gravity, and the second direction is the extension direction of the groove. The second mounting groove 12 is located directly above the detectable member 60. The distance between the light source 30 and the detectable member 60 can be adjusted by moving the position of the light source 30 within the second mounting groove 12, thereby adapting to the detection needs of detectable members 60 of different types and structures. As will be understood by those skilled in the art, the second mounting groove 12 may be a groove-type with other structures as long as the height position of the light source 30 can be changed, and is not limited thereto.

[0030] In an embodiment of the present application, as shown in Figures 3 and 4, the image collection device 20 is mounted on a first fixed base 40, and a first fixing hole 41 is provided on the surface of the first fixed base 40, and the first fixing hole 41 is provided corresponding to the first mounting groove 11. After the bolt member passes through the first mounting groove 11, it is used to form a screw-fitting engagement with the first fixing hole 41. If the position of the first fixed base 40 needs to be adjusted, the bolt member can be loosened, and when the first fixed base 40 reaches the predetermined position, the bolt member can be further tightened, which is convenient and quick.

[0031] In an implementable embodiment, as shown in Figures 3 and 4, the first fixed base 40 is an "L"-shaped block, the first fixing hole 41 is provided in the horizontal plate segment of the first fixed base 40, and a plurality of fourth mounting grooves 42 are provided in the vertical plate segment of the first fixed base 40, the image collection device 20 is assembled to the fourth mounting groove 42 via a bolt member, and the fourth mounting groove 42 has a waist-shaped structure, which allows the fixed position of the image collection device 20 to be adjusted so as to fine-tune the distance between the image collection device 20 and the detected member 60.

[0032] 5 and 6, in an embodiment of the present application, the light source 30 is mounted on a second fixing base 50, and a second fixing hole 51 is formed on the surface of the second fixing base 50. The second fixing hole 51 is formed corresponding to the second mounting groove 12, and is used for threadably fixing a bolt member to the second fixing hole 51 after passing through the second mounting groove 12. If the position of the second fixing base 50 needs to be adjusted, the bolt member can be loosened, and when the second fixing base 50 reaches the desired position, the bolt member can be further tightened, which is convenient and quick.

[0033] In a possible embodiment, as further shown in Figures 5 and 6, a fixing groove 52 penetrates the second fixing base 50, the light source 30 passes through the fixing groove 52, the fixing groove 52 forms an opening 53 in the second fixing base 50, and a bolt member passes through this opening 53. By tightening or loosening the bolt member, the light source 30 can be clamped or released, which is convenient and quick, and the height position of the light source 30 can also be fine-tuned by adjusting the mounting position of the light source 30 in the fixing groove 52.

[0034] In an embodiment of the present application, the image collection device 20 includes a camera or a video camera, and based on the ability to capture an image including a light spot, the image collection device 20 may take continuous images to form a video image, or may collect images at regular time intervals, and is not limited thereto.

[0035] In the embodiment of the present application, the light source 30 includes a laser light source, and the light beam emitted from the laser light source 30 has directional light emission characteristics, small divergence, good focusing effect, high brightness, high resolution, and easy discrimination, providing favorable conditions for subsequent thickness detection. As will be understood by those skilled in the art, the light source 30 may be of other types, such as a focused halogen lamp, a focused xenon lamp, a focused incandescent lamp, or any other light source 30 that can form a real-time light spot on the surface of the detected member 60, and is not limited thereto.

[0036] Based on the above embodiments, the present invention further provides a thickness detection method for performing thickness detection using the above-mentioned thickness detection device, Step S100: arranging a detection target member 60 directly below a light source 30; Step S101: By adjusting the position where the image collecting device 20 is fixed in the first mounting groove 11, the imaging direction of the image collecting device 20 is changed, and the position of the image collecting device 20 is determined according to the detection needs of different types and structures of the detection target member 60; Step S102: adjust the position where the light source 30 is fixed in the second mounting groove 12 to change the height of the light source 30, and determine the position of the light source 30 according to the detection needs of different types and structures of the detection target members 60; The method includes step S103 of identifying a reference object provided with a reference surface of known height, irradiating the surface of the detected member 60 and the reference surface of known height with a light source 30 to form a light spot, the light spot being within the imaging range of the image acquisition device 20, and acquiring an image of the light spot, and calculating the thickness of the detected member 60 based on the position of the real-time light spot on the surface of the detected member 60 and the reference light spot on the reference surface in the image.

[0037] Example 2 As shown in FIG. 7, this embodiment provides a thickness detection device, which includes a mounting base 10, an image acquisition device 20, and a light source 30.

[0038] The mounting seat 10 is provided with a first mounting groove 11 and a second mounting groove 12, the first mounting groove 11 extending along a first direction, and the second mounting groove 12 extending along a second direction.

[0039] The light source 30 is movably mounted in the first mounting groove 11, and a predetermined angle is formed between the radiation direction of the light beam emitted from the light source 30 and the second direction, and the predetermined angle increases or decreases as the light source 30 moves along the first direction. By adjusting the different mounting positions of the light source 30 in the first mounting groove 11, the radiation direction of the light beam emitted from the light source 30 can be changed, thereby adapting to the detection needs of different types and structures of detectable components 60.

[0040] The image collection device 20 is movably mounted in the second mounting groove 12, and the image collection device 20 can move along the second direction, thereby approaching or moving away from the detected member 60, and by adjusting the position at which the image collection device 20 is fixed in the second mounting groove 12, the working distance between the image collection device 20 and the detected member 60 can be changed, thereby adapting to the detection needs of different types and structures of detected members 60.

[0041] Based on the above embodiment, the working process of the present invention is as follows:

[0042] After identifying a fiducial reference (not shown) provided with a reference surface of known height and adjusting the positions of the light source 30 and the image collection device 20, the light source 30 irradiates the surface of the detected member 60 to form a real-time light spot and irradiates the reference surface to form a reference light spot, and the image collection device 20 collects images of the real-time light spot and the reference light spot, and calculates the thickness of the detected member 60 based on the positions of the real-time light spot and the reference light spot.

[0043] The adoption of a separate light source 30 and image acquisition device 20 facilitates the adjustment and multiplexing of the thickness detection device, and eliminates the need for scanning when detecting thickness, thereby shortening the detection time and improving the detection efficiency.

[0044] Furthermore, the imaging direction of the image collection device 20 is perpendicular to the plane on which the detected member 60 is located, the detected member 60 is mounted on a horizontally extending support surface, the detected member 60 is located directly below the image collection device 20, the center of the field of view is fixed, and the image collection device 20 collects the real-time light spots located on the top surface of the detected member 60 without interference from the real-time light spots on other surfaces of the detected member 60, making it easier to calculate and analyze the collected real-time light spot pattern. As will be understood by those skilled in the art, the imaging direction of the image collection device 20 and the plane on which the detected member 60 is located may form a certain range of included angle, in which case real-time light spot information of multiple surfaces can be obtained, and is not limited here.

[0045] In the embodiment of the present application, the first mounting groove 11 is an arc-shaped groove, the first direction is the extension direction of the arc-shaped groove, the first mounting groove 11 is located diagonally above the detectable member 60, the first direction is the direction of the arc-shaped curve, by moving the position of the light source 20 within the first mounting groove 11, the irradiation angle of the light beam emitted from the light source 20 can be adjusted, and the position of the light spot on the detectable member 60 will also change accordingly, thereby adapting to the detection needs of detectable members 60 of different types and structures, as will be understood by those skilled in the art, the first mounting groove 11 can also be a groove-type with other structures, as long as the light beam angle of the light source 20 can be changed, and is not limited thereto.

[0046] Furthermore, depending on the type of the workpiece 60 and the measurement needs, one or more light sources 30 may be provided, and each light source 30 is provided with a corresponding first mounting groove 11 for position fixing and angle adjustment. If two light sources 30 are provided, two first mounting grooves 11 are provided, and the two first mounting grooves 11 are arranged in parallel, with one light source 30 provided in each first mounting groove 11, and the light beam angle of each light source 30 can be adjusted independently. In this way, real-time light spots at multiple positions on the workpiece 60 can be obtained and thickness values ​​at multiple positions can be calculated. The obtained multiple thickness values ​​can be averaged to obtain the average thickness, thereby improving detection accuracy.

[0047] In the embodiment of the present application, the second mounting groove 12 is a groove extending along the direction of gravity, and the second direction is the extension direction of the groove. The second mounting groove 12 is located directly above the detectable member 60. By moving the position of the image collection device 20 within the second mounting groove 12, the distance between the image collection device 20 and the detectable member 60 can be adjusted, thereby adapting to the detection needs of detectable members 60 of different types and structures. As will be understood by those skilled in the art, the second mounting groove 12 may also be a groove-type with other structures, as long as the height position of the image collection device 20 can be changed, and is not limited thereto.

[0048] Based on the above-mentioned embodiments, the present invention further provides a thickness detection method for performing thickness detection using the above-mentioned thickness detection device, the thickness detection method comprising: Step S100: arranging a detection target member 60 directly below the image acquisition device 20; Step S101: By adjusting the position where the light source 30 is fixed in the first mounting groove 11, the irradiation direction of the light beam emitted from the light source 30 is changed, and the position of the light source 30 is determined according to the detection needs of different types and structures of the detection target member 60; Step S102: adjust the position of the image collecting device 20 fixed in the second mounting groove 12 to change the height of the image collecting device 20, and determine the position of the image collecting device 20 according to the detection needs of different types and structures of the detected members 60; The method includes step S103 of identifying a reference object provided with a reference surface having a known height, irradiating the surface of the detected member 60 and the reference surface having a known height with the light source 30 to form a light spot, the light spot being within the imaging range of the image acquisition device 20, and acquiring an image of the light spot, and calculating and obtaining the thickness of the detected member 60 based on the position of the real-time light spot on the surface of the detected member 60 and the reference light spot on the reference surface in the image.

[0049] The above has described in detail the structure, features and operational effects of the present invention based on the embodiments shown in the drawings. However, the above is only a preferred embodiment of the present invention, and the present invention is not limited to the scope of implementation shown in the drawings. Any modifications made to the concept of the present invention or modifications to equivalent embodiments that are equivalent changes should still fall within the scope of protection of the present invention, provided that they do not exceed the spirit contained in the specification and drawings. [Explanation of symbols]

[0050] 10 Mounting seat 11 First mounting groove 12 Second mounting groove 13 Bottom plate 14 Side panel 15 Reinforcement plate 16 Third mounting groove 17 Lightening hole 20 Image acquisition equipment 30 light source 40 1st fixed base 41 1st fixing hole 42 4th mounting groove 50 Second fixed base 51 2nd fixing hole 52 Fixed groove 53 Aperture 60 Detected member

Claims

1. A thickness detection device, comprising: a mounting base, an image acquisition device, and a light source; The mounting seat is provided with a first mounting groove and a second mounting groove, the first mounting groove extending along a first direction, and the second mounting groove extending along a second direction; the image acquisition device is movably mounted in the first mounting groove, a predetermined angle is formed between an imaging direction of the image acquisition device and the second direction, and the predetermined angle increases or decreases as the image acquisition device moves along the first direction; the light source is movably attached to the second attachment groove, and the light source is movable along the second direction so as to move toward or away from the detection member; the first mounting groove is an arc-shaped groove, and the first direction is an extension direction of the arc-shaped groove; the mounting seat is composed of a bottom plate, a side plate, and a reinforcing plate, the side plate is fixed to the bottom plate, a bottom surface of the reinforcing plate is connected to the bottom plate, and one side surface of the reinforcing plate is connected to the side plate; The thickness detecting device, wherein the first mounting groove and the second mounting groove are both provided on the side plate.

2. The thickness detecting device according to claim 1 , wherein two first mounting grooves are provided, and the two first mounting grooves are provided in parallel.

3. The thickness detecting device according to claim 1 , wherein the second mounting groove is a groove extending along the direction of gravity, and the second direction is the extension direction of the groove.

4. 2. The thickness detection device according to claim 1, wherein the image collection device is mounted on a first fixed base, a first fixing hole is provided on a surface of the first fixed base, the first fixing hole is provided corresponding to the first mounting groove, and is used to form a threaded fixation with the first fixing hole after a bolt member passes through the first mounting groove.

5. 2. The thickness detection device of claim 1, wherein the light source is provided on a second fixed base, a second fixing hole is provided on the surface of the second fixed base, the second fixing hole is provided corresponding to the second mounting groove, and is used to form a threaded fixation with the second fixing hole after a bolt member passes through the second mounting groove.

6. The thickness detection apparatus of claim 1 , wherein the image acquisition device comprises a camera or a video camera.

7. A thickness detection method for detecting thickness using the thickness detection device according to any one of claims 1 to 6, comprising: Step S100: arranging a detection target member directly under the light source; Step S101: changing an imaging direction of the image acquisition device by adjusting a position where the image acquisition device is fixed in the first mounting groove; Step S102: changing the height of the light source by adjusting the position where the light source is fixed in the second mounting groove; a step S103 in which the light source irradiates the surface of the detected member and a reference surface of known height to form a light spot, the light spot being within an imaging range of the image acquisition device, the image acquisition device acquiring an image of the light spot, and calculating and obtaining the thickness of the detected member based on the position of the light spot on the surface of the detected member and the reference surface in the image.

8. A thickness detection device, comprising: a mounting base, a light source, and an image acquisition device; The mounting seat is provided with a first mounting groove and a second mounting groove, the first mounting groove extending along a first direction, and the second mounting groove extending along a second direction; the light source is movably mounted in the first mounting groove, a predetermined angle is formed between an irradiation direction of a light beam emitted from the light source and the second direction, and the predetermined angle increases or decreases as the light source moves along the first direction; the image collecting device is movably attached to the second mounting groove, and the image collecting device is movable along the second direction so as to move toward or away from the detected member; the first mounting groove is an arc-shaped groove, and the first direction is an extension direction of the arc-shaped groove; the mounting seat is composed of a bottom plate, a side plate, and a reinforcing plate, the side plate is fixed to the bottom plate, a bottom surface of the reinforcing plate is connected to the bottom plate, and one side surface of the reinforcing plate is connected to the side plate; The thickness detecting device, wherein the first mounting groove and the second mounting groove are both provided on the side plate.

9. 9. A thickness detection method for detecting thickness using the thickness detection device according to claim 8, comprising: Step S100: arranging a detection target member directly below the image acquisition device; Step S101: changing the irradiation direction of the light beam emitted from the light source by adjusting the position where the light source is fixed in the first mounting groove; Step S102: changing the height of the image acquisition device by adjusting the position where the image acquisition device is fixed in the second mounting groove; a step S103 in which the light source irradiates the surface of the detected member and a reference surface of known height to form a light spot, the light spot being within an imaging range of the image acquisition device, the image acquisition device acquiring an image of the light spot, and calculating and obtaining the thickness of the detected member based on the position of the light spot on the surface of the detected member and the reference surface in the image.

Images