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 in particular 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 emits a line laser vertically to scan the product, and the camera is arranged at an angle to photograph the product irradiated by the laser and obtain point cloud data. After the scanning 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 application area of ​​the integrated structure of the laser and the camera is narrow. When detecting different kinds 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 PRESENT EMBODIMENT The present invention aims to provide a thickness detection device and a thickness detection method in order 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 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 collecting device is movably attached to the first mounting groove, and a predetermined angle is formed between an imaging direction of the image collecting device and the second direction, and the predetermined angle increases and decreases with the movement of the image collecting device 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 a 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 detection 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 detection 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 a surface of the first fixed base, and the first fixing hole is provided corresponding to the first mounting groove and is used to form a screw-fitting fixation 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 fixed base, and a second fixing hole is provided on a surface of the second fixed base, 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 a bolt member passes through the second mounting groove.

[0011] A thickness detection apparatus as described above, wherein preferably said 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 the steps of: A step S100 of disposing a detection target member directly under the light source; A step S101 of changing an imaging direction of the image collecting device by adjusting a position where the image collecting device is fixed to the first mounting groove; Step S102 of changing a height of the light source by adjusting a position where the light source is fixed in the second mounting groove; The method includes a step S103 in which the light source irradiates the surface of the detectable member and a reference surface of known height to form a light spot, the light spot being within an imaging range of the image collection device, the image collection device collecting an image of the light spot, and calculating the thickness of the detectable member based on the position of the light spot on the surface of the detectable 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 capture 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 attached to the first attachment groove, and 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 with the movement of the light source 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.

[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 the steps of: A step S100 of disposing a detection target member directly under the image acquisition device; Step S101 of changing a direction of irradiation of a light beam emitted from the light source by adjusting a position where the light source is fixed in the first mounting groove; A step S102 of changing a height of the image collecting device by adjusting a position where the image collecting device is fixed to the second mounting groove; The method includes a step S103 in which the light source irradiates the surface of the detectable member and a reference surface of known height to form a light spot, the light spot being within an imaging range of the image collection device, the image collection device collecting an image of the light spot, and calculating the thickness of the detectable member based on the position of the light spot on the surface of the detectable member and the reference surface in the image. Effect of the Invention

[0015] Compared with the prior art, the present invention employs a separate light source and image collection device, which facilitates adjustment and multiplexing of the equipment; the light source irradiates the surface of the detected member 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 detected member based on the position of the light spot on the surface of the detected member and the reference surface in the image, thereby eliminating the need for scanning when detecting the thickness, shortening the detection time and improving the detection efficiency. [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 is a perspective view of an overall structure according to a first embodiment of the present invention. [Diagram 2] FIG. 2 is a schematic diagram showing a configuration of a mounting seat according to the first embodiment of the present invention. [Diagram 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 of a first fixed base according to the first embodiment of the present invention; FIG. [Diagram 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 of a second fixed base according to the first embodiment of the present invention; FIG. [Figure 7] FIG. 11 is a perspective view of the entire configuration according to the second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

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

[0018] Example 1 As shown in FIG. 1 and FIG. 2, the present 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 and the second direction of the image collection device 20, 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 a second direction 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 collection device 20 and the light source 30, the light source 30 illuminates the surface of the detected member 60 to form a real-time light spot and illuminates 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.

[0024] The adoption of a separate image acquisition device 20 and light source 30 facilitates the coordination 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 irradiation direction of the light source 30 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, 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 irradiation 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 of multiple surfaces can be obtained, and is not limited here.

[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 is provided with a plurality of third mounting grooves 16. The bottom plate 13 is fixed to the table surface through the engagement between the bolt members and 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 and fix the mounting seat 10 in an appropriate position to accommodate the detected member 60 that has moved from the conveying part such as the flow path or the turntable. The side plates 14 are provided with a plurality of third mounting grooves 16. The reinforcing plate 15 is fixed to the mounting seat 10, with its bottom surface connected to the bottom plate 13 and one side surface of the reinforcing plate 15 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 disruptions to 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 detectable member 60, and the first direction is the arc-shaped curve direction. By moving the position of the image collection device 20 within the first mounting groove 11, the angle of the imaging direction of the image collection 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 detectable members 60 of different types and structures. As can be understood by those skilled in the art, the first mounting groove 11 may also be a groove type of other structure, as long as the imaging angle of the image collection device 20 can be changed, and is not limited here.

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

[0029] In an embodiment of the present application, as shown in Figures 1 and 2, the second mounting groove 12 is a groove extending along the direction of gravity, the second direction is the extension direction of the groove, the second mounting groove 12 is located directly above the detectable member 60, and 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 of other structure, 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, and is used for forming a screw-fitting fixation with the first fixing hole 41 after the bolt member passes through the first mounting groove 11. When 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 a 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, so that the fixed position of the image collection device 20 can be adjusted to fine-tune the distance between the image collection device 20 and the detected member 60.

[0032] 5 and 6, in the embodiment of the present application, the light source 30 is mounted on the second fixed base 50, and the surface of the second fixed base 50 is provided with a second fixing hole 51, which is provided corresponding to the second mounting groove 12 and is used for forming a screw-fitting connection with the second fixing hole 51 after the bolt member passes through the second mounting groove 12. When the position of the second fixed base 50 needs to be adjusted, the bolt member can be loosened, and when the second fixed base 50 reaches a predetermined position, the bolt member can be further tightened, which is convenient and quick.

[0033] In an embodiment that can be implemented, as further shown in Figures 5 and 6, a fixing groove 52 penetrates the second fixed base 50, the light source 30 passes through the fixing groove 52, the fixing groove 52 forms an opening 53 in the second fixed base 50, and the bolt member passes through this opening 53, and the light source 30 is clamped or released by tightening or loosening the bolt member, 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 emission characteristics, small divergence, good focusing effect, and high brightness, high resolution, and easy to distinguish, providing favorable conditions for subsequent thickness detection. As can be understood by those skilled in the art, the light source 30 may be of other types, such as any light source 30 that can form a real-time light spot on the surface of the detected member 60, such as a focused halogen lamp, a focused xenon lamp, a focused incandescent lamp, etc., and is not limited thereto.

[0036] Based on the above embodiment, the present invention further provides a thickness detection method for performing thickness detection using the above-mentioned thickness detection device, Step S100 of disposing a detection target member 60 directly under a light source 30; Step S101: by adjusting the position where the image collecting device 20 is fixed in the first mounting groove 11, changing the imaging direction of the image collecting device 20, and determining the position of the image collecting device 20 according to the detection needs of the detection target member 60 of different types and structures; Step S102: changing the height of the light source 30 by adjusting the position where the light source 30 is fixed in the second mounting groove 12, and determining the position of the light source 30 according to the detection needs of the detection target members 60 of different types and structures; The method includes step S103 of identifying a reference object provided with a reference surface of known height, a light source 30 irradiating the surface of the detected member 60 and the reference surface of known height to form a light spot, the light spot being within an imaging range of an image collection device 20, the image collection device 20 collecting an image of the light spot, and calculating a 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 irradiation 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 irradiation 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 members 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 a second direction, thereby moving closer to or 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 is 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 image collection device 20, the light source 30 illuminates the surface of the detected member 60 to form a real-time light spot and illuminates 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 coordination and multiplexing of the thickness detection device, and eliminates the need for scanning when detecting the 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 detectable member 60 is located, the detectable member 60 is mounted on a supporting surface extending horizontally, the detectable member 60 is located directly below the image collection device 20, and the center of the field of view is fixed, so that the image collection device 20 collects the real-time light spots located on the top surface of the detectable member 60 without interference from the real-time light spots on other surfaces of the detectable member 60, and the collected real-time light spot pattern is easy to calculate and analyze. As can be understood by those skilled in the art, the imaging direction of the image collection device 20 and the plane on which the detectable member 60 is located may form an included angle within a certain range, 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 arc-shaped curve direction, and 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 also changes 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 may also be a groove type of other structure, as long as the light beam angle of the light source 20 can be changed, and is not limited here.

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

[0047] In the embodiment of the present application, the second mounting groove 12 is a groove extending along the direction of gravity, the second direction is the extension direction of the groove, the second mounting groove 12 is located directly above the detectable member 60, and the distance between the image collection device 20 and the detectable member 60 can be adjusted by moving the position of the image collection device 20 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 also be a groove type of other structure, as long as the height position of the image collection device 20 can be changed, and is not limited here.

[0048] Based on the above embodiment, 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 60 directly under an image acquisition device 20; Step S101: by adjusting the position where the light source 30 is fixed in the first mounting groove 11, the direction of the light emitted from the light source 30 is changed, and the position of the light source 30 is determined according to the detection needs of the detection target members 60 of different types and structures; Step S102: by adjusting the position where the image collecting device 20 is fixed in the second mounting groove 12, the height 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 the detection target member 60 of different types and structures; The method includes a step S103 of identifying a reference object provided with a reference surface of known height, a light source 30 irradiating the surface of the detectable member 60 and the reference surface of known height to form a light spot, the light spot being within an imaging range of an image collection device 20, and the image collection device 20 collecting an image of the light spot, and calculating and obtaining a thickness of the detectable member 60 based on the position of the real-time light spot on the surface of the detectable member 60 and the reference light spot on the reference surface in the image.

[0049] The above describes in detail the structure, features and 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 equivalent 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 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 Detectable 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 collecting device is movably attached to 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 and decreases with the movement of the image collecting device along the first direction; A thickness detection device, characterized in that the light source is movably mounted in the second mounting groove, and the light source is movable along the second direction so as to move closer to or away from the member to be detected.

2. The thickness detection device according to claim 1 , wherein the first mounting groove is an arc-shaped groove, and the first direction is an extension direction of the arc-shaped groove.

3. The thickness detection device according to claim 1 , wherein the number of the first mounting grooves is two, and the two first mounting grooves are arranged in parallel.

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

5. 2. The thickness detection device of 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 screw-fitting fixation with the first fixing hole after a bolt member passes through the first mounting groove.

6. 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 a surface of the second fixed base, 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 a bolt member passes through the second mounting groove.

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

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

9. 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 attached to the first attachment groove, and 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 with the movement of the light source along the first direction; A thickness detection device, characterized in that the image collection device is movably mounted in the second mounting groove, and the image collection device is movable along the second direction so as to move closer to or away from the detected member.

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

Images