Jig for adjusting light emitting angle of linear camera

Abstract

The invention provides a jig for adjusting the light emitting angle of a linear camera, and relates to the technical field of adjusting devices.The jig comprises a debugging jig, a flight camera assembly and a camera calibration base, the debugging jig is provided with an auxiliary detection module, the auxiliary detection module protrudes out of the upper surface of the debugging jig, one end of the flight camera assembly is fixedly connected to the debugging jig, and the other end of the flight camera assembly is fixedly connected to the camera calibration base; the other end of the flight camera assembly extends to the position above the auxiliary detection module and is arranged in an inverted mode, the camera calibration base is fixedly connected to the upper surface of the auxiliary detection module, and the auxiliary detection module drives the camera calibration base to linearly slide in a reciprocating mode below the flight camera assembly so as to assist the flight camera assembly in debugging the light emitting angle; the jig for adjusting the light-emitting angle of the linear camera can effectively assist the linear camera in debugging the light-emitting angle, so that the light-emitting angle can be adjusted more visually.

Description

Technical Field

[0001] The present invention relates to the technical field of adjusting devices, and in particular to a fixture for adjusting the light output angle of a linear camera. Background Art

[0002] In recent years, with the rapid development of industrial automation, line scanning visual inspection technology has been increasingly applied to automated inspection production lines for different products. The basic hardware of the line scanning inspection system is often composed of two important parts: a linear array camera and a linear light source. It is usually used to detect defects on the surface of an object, areas of interest, or to identify features such as length, width, area, and edges. Among them, the lighting angle of the light source determines the recognition effect of the line scanning inspection system in different application scenarios. For example, for defects of varying depths on the surface of the inspected object, the camera captures different brightness difference images at different lighting angles, so the clarity of the identified defects is different; in addition, for inspected objects of different thicknesses, the lighting angle also determines the shadow area at the edge, which is particularly important for application scenarios that require edge detection.

[0003] The existing linear camera's light output angle is often adjusted online, that is, after installation, the camera is connected to the staff and then adjusted remotely. The adjustment process is very inconvenient and inefficient, and it is impossible to determine whether the adjustment is in place. The degree of perfection of the adjustment depends on the operator's experience.

[0004] To this end, it is necessary to propose a fixture for adjusting the light output angle of a linear camera to assist the linear camera in debugging the light output angle, so as to facilitate more intuitive light output angle adjustment. Summary of the invention

[0005] In order to solve the above problems, the present invention proposes a fixture for adjusting the light output angle of a linear camera to assist the linear camera in debugging the light output angle, so as to facilitate more intuitive adjustment of the light output angle.

[0006] The present invention is achieved through the following technical solutions:

[0007] The present invention proposes a jig for adjusting the light-emitting angle of a linear camera, comprising a debugging jig, a flying camera assembly, and a camera calibration seat, wherein the debugging jig is provided with an auxiliary detection module, wherein the auxiliary detection module protrudes from the upper surface of the debugging jig, wherein one end of the flying camera assembly is fixedly connected to the debugging jig, and the other end of the flying camera assembly extends to the top of the auxiliary detection module and is invertedly arranged, wherein the camera calibration seat is fixedly connected to the upper surface of the auxiliary detection module, and the camera calibration seat is driven by the auxiliary detection module to perform a linear reciprocating slide below the flying camera assembly to assist the flying camera assembly in debugging the light-emitting angle.

[0008] Furthermore, the flying camera assembly includes a fixing frame, an adjustment mechanism, a flying line scanning assembly, and a linear array camera. The fixing frame is fixedly connected to the upper surface of the debugging fixture, one end of the fixing frame extends to the top of the auxiliary detection module, the flying line scanning assembly is fixedly connected to one end of the fixing frame and faces the auxiliary detection module, the linear array camera is inserted and fixedly connected to the other end of the fixing frame, the adjustment mechanism is fixedly connected to one side of the fixing frame, and the adjustment mechanism is used to adjust the position of the linear array camera.

[0009] Furthermore, an image acquisition end is provided at one end of the fixed frame, and the image acquisition end extends to the top of the auxiliary detection module and faces downward, the flight line scanning assembly is fixedly connected to one side of the image acquisition end, and the lens of the linear array camera faces the image acquisition end from the inside of the fixed frame.

[0010] Furthermore, a corner reflector is provided inside the image acquisition end, the incident light of the corner reflector is directed downward, and the lens of the line array camera is directed toward the corner reflector from the inside of the fixing frame.

[0011] Furthermore, the adjustment mechanism includes a support frame and a micro-micrometer, one end of the support frame is fixedly connected to one side of the fixed frame, the support frame is an L-shaped structure, the micro-micrometer passes through the other end of the support frame and is fixedly connected, and one end of the micro-micrometer faces one side of the linear array camera.

[0012] Furthermore, a placement cavity is provided in the fixing frame, and the lens of the linear array camera is accommodated in the placement cavity.

[0013] Furthermore, a positioning block is provided on the upper surface of the debugging fixture, and a positioning boss is provided on the bottom of the fixing frame, and the positioning boss is inserted into the positioning block.

[0014] Furthermore, the flight line scanning assembly includes a mounting frame, a first scanning assembly, and a second scanning assembly. The mounting frame is fixedly connected to one side of the fixed frame, the first scanning assembly is fixedly connected to the top of the mounting frame, the second scanning assembly is fixedly connected to the bottom of the mounting frame, the second scanning assembly faces downward, and the first scanning assembly faces downward from a gap in the second scanning assembly.

[0015] Furthermore, the auxiliary detection module includes a translation mechanism and a precision manual lifting platform, the translation mechanism is fixedly connected to the interior of the debugging jig, the translation mechanism is provided with a mobile platform, the bottom of the precision manual lifting platform is fixedly connected to the upper surface of the mobile platform, the upper surface of the debugging jig is provided with an avoidance groove, the top of the precision manual lifting platform passes through the avoidance groove and extends out of the upper surface of the debugging jig, the camera calibration seat is fixedly connected to the precision manual lifting platform, and the mobile platform drives the precision manual lifting platform to move linearly in the avoidance groove.

[0016] Furthermore, the auxiliary detection module also includes a camera calibration block, which is located in the moving direction of the precision manual lifting platform and on one side of the avoidance groove.

[0017] Beneficial effects of the present invention:

[0018] The present invention adopts a debugging jig to fix the flying camera assembly in reverse, and drives the camera calibration seat to slide back and forth in a straight line under the flying camera assembly through the auxiliary detection module to assist the flying camera assembly in debugging the light output angle. During the debugging process, the image of the camera calibration seat is obtained to test whether the light output angle of the flying camera assembly meets the requirements. Then the worker adjusts the light output angle of the flying camera assembly. After the debugging is completed, the flying camera assembly can be removed for use. The whole debugging process is more intuitive and the debugging efficiency is improved. In summary, the jig for adjusting the light output angle of the linear camera can effectively assist the linear camera in debugging the light output angle, so as to facilitate more intuitive light output angle adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 An exploded view of a fixture for adjusting the light output angle of a linear camera according to the present invention;

[0020] Figure 2 It is an overall schematic diagram of a fixture for adjusting the light output angle of a linear camera according to the present invention;

[0021] Figure 3 An exploded view of a flying camera assembly of a fixture for adjusting the light-emitting angle of a linear camera according to the present invention;

[0022] Figure 4 It is a schematic diagram of another angle of the flying camera assembly of the jig for adjusting the light output angle of a linear camera of the present invention;

[0023] Figure 5 This is a cross-sectional view of a precision manual lifting platform of a fixture for adjusting the light output angle of a linear camera according to the present invention.

[0024] The reference numerals are as follows:

[0025] Debugging fixture 1, auxiliary detection module 11, translation mechanism 111, mobile platform 1111, precision manual lifting platform 112, fixed seat 1121, lifting platform 1122, micrometer pusher 1123, prying rotating member 1124, camera calibration block 113, positioning block 12, avoidance groove 13;

[0026] Flying camera assembly 2, fixing frame 21, image acquisition end 211, corner reflector 2111, placement cavity 212, positioning boss 213, adjustment mechanism 22, supporting frame 221, micrometer 222, flying line scanning assembly 23, mounting frame 231, first scanning assembly 232, second scanning assembly 233, line array camera 24;

[0027] Camera calibration stand 3. DETAILED DESCRIPTION

[0028] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0029] Please refer to Figure 1-Figure 5 The present invention proposes a fixture for adjusting the light-emitting angle of a linear camera, comprising a debugging fixture 1, a flying camera assembly 2, and a camera calibration seat 3. The debugging fixture 1 is provided with an auxiliary detection module 11, the auxiliary detection module 11 is electrically connected to the debugging fixture 1, and the auxiliary detection module 11 protrudes from the upper surface of the debugging fixture 1. The flying camera assembly 2 is electrically connected to an external controller through a conductive wire. The external controller is provided with a display. During the test, the detection information of the flying camera assembly 2 can be synchronized on the display in real time. One end of the flying camera assembly 2 is fixedly connected to the debugging fixture 1, and the other end of the flying camera assembly 2 extends to the upper side of the auxiliary detection module 11 and is inverted. The camera calibration seat 3 is fixedly connected to the upper surface of the auxiliary detection module 11. The camera calibration seat 3 is used as an image model for debugging the flying camera assembly 2. The camera calibration seat 3 is driven by the auxiliary detection module 11 to slide back and forth linearly below the flying camera assembly 2, so that the light at different positions of the camera calibration seat 3 is irradiated into the flying camera assembly 2 to assist the flying camera assembly 2 in debugging the light-emitting angle.

[0030] In this embodiment, the debugging fixture 1 is used to fix the flying camera assembly 2 upside down, and the auxiliary detection module 11 drives the camera calibration seat 3 to slide back and forth in a straight line below the flying camera assembly 2. During the reciprocating sliding process, the flying camera assembly 2 can obtain the shape of the camera calibration seat 3 located below and at different positions to assist the flying camera assembly 2 in debugging the light output angle. During the debugging process, obtaining the image of the camera calibration seat 3 at different positions can test whether the light output angle of the flying camera assembly 2 meets the requirements, and then the worker adjusts the light output angle of the flying camera assembly 2. After the debugging is completed, the flying camera assembly 2 can be removed for use. During the test, the detection information of the flying camera assembly 2 can be synchronized and viewed on the display in real time, and the entire debugging process is more intuitive, and the debugging efficiency is improved.

[0031] In summary, the fixture for adjusting the light output angle of a linear camera can effectively assist the linear camera in debugging the light output angle, so as to facilitate more intuitive light output angle adjustment.

[0032] In this embodiment, the flying camera assembly 2 includes a fixing frame 21, an adjusting mechanism 22, a flying line scanning assembly 23, and a linear array camera 24. The fixing frame 21 is fixedly connected to the upper surface of the debugging fixture 1, and one end of the fixing frame 21 extends to the top of the auxiliary detection module 11. The flying line scanning assembly 23 is fixedly connected to one end of the fixing frame 21 and vertically downward toward the auxiliary detection module 11. The linear array camera 24 is inserted and fixedly connected to the other end of the fixing frame 21. The adjusting mechanism 22 is fixedly connected to one side of the fixing frame 21. The adjusting mechanism 22 is used to adjust the position of the linear array camera 24. The flying line scanning assembly 2 3. The line array cameras 24 are electrically connected to the external controller; the fixing frame 21 is used to provide a stable installation structure for the adjustment mechanism 22, the flight line scanning component 23, and the line array camera 24. When the auxiliary detection module 11 drives the camera calibration seat 3 to slide back and forth in a straight line under the flight camera component 2, the flight line scanning component 23 can scan the shape contour of the camera calibration seat 3, and the line array camera 24 can simultaneously acquire light from the camera calibration seat 3. The adjustment mechanism 22 can adjust the position of the line array camera 24 to change the light output angle of the line array camera 24, and then adjust it to the optimal light output angle.

[0033] In this embodiment, an image acquisition end 211 is provided at one end of the fixed frame 21, and the image acquisition end 211 extends to the top of the auxiliary detection module 11 and faces downward. The flight line scanning component 23 is fixedly connected to one side of the image acquisition end 211, and the lens of the linear array camera 24 faces the image acquisition end 211 from the inside of the fixed frame 21; the bottom of the image acquisition end 211 is a transparent structure, which can acquire the image located below and then reflect it to the lens of the linear array camera 24, which is equivalent to the linear array camera 24 being inverted, so that the linear array camera 24 can be installed at the rear end of the fixed frame 21.

[0034] In this embodiment, a corner reflector 2111 is provided in the image acquisition end 211, and the incident light of the corner reflector 2111 is directed downward, and the lens of the linear array camera 24 is directed toward the corner reflector 2111 from the inside of the fixed frame 21; the corner reflector 2111 is a triangular pyramid structure, and the hypotenuse of the corner reflector 2111 has a certain inclination, which can reflect the image below to the lens of the linear array camera 24.

[0035] In this embodiment, there can be two adjustment mechanisms 22, which are respectively arranged on both sides of the fixed frame 21. The adjustment mechanism 22 includes a support frame 221 and a micrometer 222. One end of the support frame 221 is fixedly connected to one side of the fixed frame 21. The support frame 221 is an L-shaped structure, has greater hardness, and is not easy to deform. The micrometer 222 passes through the other end of the support frame 221 and is fixedly connected. One end of the micrometer 222 faces one side of the linear array camera 24. When adjusting the position of the linear array camera 24, the knob of the micrometer 222 is turned to push the linear array camera 24 to move a small distance, thereby adjusting the light output angle of the linear array camera 24.

[0036] In this embodiment, a placement cavity 212 is provided in the fixing frame 21, and the lens of the line array camera 24 is accommodated in the placement cavity 212; when the line array camera 24 is installed, the lens of the line array camera 24 is inserted into the placement cavity 212, and then the line array camera 24 is semi-locked to the rear end of the fixing frame 21, and after the light output angle is adjusted, the line array camera 24 is locked.

[0037] In this embodiment, a positioning block 12 is provided on the upper surface of the debugging jig 1, and a positioning boss 213 is provided on the bottom of the fixing frame 21, and the positioning boss 213 is inserted into the positioning block 12; when the flying camera assembly 2 is installed on the debugging jig 1, in order to facilitate quick installation, a positioning block 12 is provided on the upper surface of the debugging jig 1, and during installation, the positioning boss 213 is directly inserted into the positioning block 12, and the fixing frame 21 is fixed on the debugging jig 1, which saves installation time.

[0038] In this embodiment, the flight line scanning assembly 23 includes a mounting frame 231, a first scanning assembly 232, and a second scanning assembly 233. The mounting frame 231 is fixedly connected to one side of the fixing frame 21, the first scanning assembly 232 is fixedly connected to the top of the mounting frame 231, and the second scanning assembly 233 is fixedly connected to the bottom of the mounting frame 231. The second scanning assembly 233 faces downward, and the first scanning assembly 232 faces downward from the gap of the second scanning assembly 233; the first scanning assembly 232 is used to scan the coaxial light of the camera calibration seat 3, and the second scanning assembly 233 is used to scan the side light of the camera calibration seat 3. When the camera calibration seat 3 moves laterally to the bottom of the flight line scanning assembly 23, the first scanning assembly 232 and the second scanning assembly 233 simultaneously scan the shape of the camera calibration seat 3 and transmit it back to the external controller to compare parameters for adjusting the light output angle of the line array camera 24.

[0039] In this embodiment, the auxiliary detection module 11 includes a translation mechanism 111 and a precision manual lifting platform 112. The translation mechanism 111 is fixedly connected to the inside of the debugging fixture 1. The translation mechanism 111 is electrically connected to the debugging fixture 1. After the debugging fixture 1 issues a motion command to the translation mechanism 111, the translation mechanism 111 performs lateral movement. The translation mechanism 111 is provided with a mobile platform 1111. The bottom of the precision manual lifting platform 112 is fixedly connected to the upper surface of the mobile platform 1111. The upper surface of the debugging fixture 1 is provided with an avoidance groove 13. The top of the precision manual lifting platform 112 passes through the avoidance groove 13 and extends out of the upper surface of the debugging fixture 1. The camera calibration seat 3 is fixedly connected to the precision manual lifting platform 112. On the precision manual lifting platform 112, the mobile platform 1111 drives the precision manual lifting platform 112 to move linearly in the avoidance groove 13; the translation mechanism 111 is a reciprocating translation motion module, which drives the synchronous belt to drive the sliding parts to perform translational motion through the forward or reverse rotation of the motor, and the mobile platform 1111 is driven by the movement of the synchronous belt. The precision manual lifting platform 112 can be manually lifted and lowered to adjust the height of the camera calibration seat 3. The precision manual lifting platform 112 includes a fixed seat 1121, a lifting platform 1122, a micrometer propeller 1123, and a prying rotating member 1124. The bottom of the fixed seat 1121 is fixedly connected to the mobile platform 1111. The lifting platform 1122 is connected to the fixed seat 1121 in a longitudinal sliding manner, the micrometer pusher 1123 is fixedly connected to the bottom side of the fixed seat 1121, the prying rotating member 1124 is in a triangular structure, and the first end of the prying rotating member 1124 is rotatably connected to the fixed seat 1121. The lifting platform 1122 is provided with a push rod, which extends to the inside of the fixed seat 1121 and abuts against the second end of the prying rotating member 1124. One end of the micrometer pusher 1123 extends into the fixed seat 1121 and abuts against the third end of the prying rotating member 1124. When the micrometer pusher 1123 is turned in the forward direction, the prying rotating member 1124 can be pushed to move with the first end The shaft rotates forward, thereby prying the lifting platform 1122 upward to rise. When the micrometer pusher 1123 is turned in the reverse direction, the driving force on the prying rotating member 1124 can be withdrawn. Under the action of gravity, the prying rotating member 1124 rotates in the reverse direction with the first end as the shaft, thereby withdrawing the support for the lifting platform 1122, and the lifting platform 1122 is lowered. When the auxiliary detection module 11 is operating, the translation mechanism 111 drives the mobile platform 1111 to move laterally, thereby driving the precision manual lifting platform 112 to move laterally in the avoidance groove 13, thereby causing the camera calibration seat 3 to move laterally under the flying camera assembly 2.

[0040] In this embodiment, the auxiliary detection module 11 also includes a camera calibration block 113, which is located in the moving direction of the precision manual lifting platform 112 and on one side of the avoidance groove 13; the camera calibration block 113 can block the side external light of the camera calibration seat 3 to ensure that the incident light of the camera calibration seat 3 relative to the flying camera assembly 2 is constant, so as to reduce the error of adjusting the light output angle of the flying camera assembly 2.

[0041] Of course, the present invention may have many other implementations. Based on this implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present invention.

Claims

1. A fixture for adjusting the light output angle of a linear camera, characterized in that: The invention comprises a debugging jig, a flying camera assembly and a camera calibration seat. The debugging jig is provided with an auxiliary detection module, and the auxiliary detection module protrudes from the upper surface of the debugging jig. One end of the flying camera assembly is fixedly connected to the debugging jig, and the other end of the flying camera assembly extends to the top of the auxiliary detection module and is inverted. The camera calibration seat is fixedly connected to the upper surface of the auxiliary detection module, and the camera calibration seat is driven by the auxiliary detection module to perform linear reciprocating sliding below the flying camera assembly to assist the flying camera assembly in debugging the light output angle.

2. The fixture for adjusting the light output angle of a linear camera according to claim 1, characterized in that: The flying camera assembly includes a fixing frame, an adjustment mechanism, a flying line scanning assembly, and a linear array camera. The fixing frame is fixedly connected to the upper surface of the debugging fixture, one end of the fixing frame extends to the top of the auxiliary detection module, the flying line scanning assembly is fixedly connected to one end of the fixing frame and faces the auxiliary detection module, the linear array camera is inserted and fixedly connected to the other end of the fixing frame, the adjustment mechanism is fixedly connected to one side of the fixing frame, and the adjustment mechanism is used to adjust the position of the linear array camera.

3. The fixture for adjusting the light output angle of a linear camera according to claim 2, characterized in that: An image acquisition end is provided at one end of the fixing frame, and the image acquisition end extends to the top of the auxiliary detection module and faces downward, the flight line scanning assembly is fixedly connected to one side of the image acquisition end, and the lens of the linear array camera faces the image acquisition end from the inside of the fixing frame.

4. The fixture for adjusting the light output angle of a linear camera according to claim 3, characterized in that: A corner reflector is arranged inside the image acquisition end, the incident light of the corner reflector is directed downward, and the lens of the line array camera is directed toward the corner reflector from the inside of the fixing frame.

5. The fixture for adjusting the light output angle of a linear camera according to claim 2, characterized in that: The adjustment mechanism includes a support frame and a micrometer. One end of the support frame is fixedly connected to one side of the fixed frame. The support frame is in an L-shaped structure. The micrometer passes through the other end of the support frame and is fixedly connected. One end of the micrometer faces one side of the linear array camera.

6. The fixture for adjusting the light output angle of a linear camera according to claim 2, characterized in that: A placement cavity is provided in the fixing frame, and the lens of the linear array camera is accommodated in the placement cavity.

7. The fixture for adjusting the light output angle of a linear camera according to claim 2, characterized in that: A positioning block is provided on the upper surface of the debugging fixture, and a positioning boss is provided on the bottom of the fixing frame, and the positioning boss is inserted into the positioning block.

8. The fixture for adjusting the light output angle of a linear camera according to claim 2, characterized in that: The flight line scanning assembly includes a mounting frame, a first scanning assembly, and a second scanning assembly. The mounting frame is fixedly connected to one side of the fixing frame, the first scanning assembly is fixedly connected to the top of the mounting frame, the second scanning assembly is fixedly connected to the bottom of the mounting frame, the second scanning assembly faces downward, and the first scanning assembly faces downward from a gap in the second scanning assembly.

9. The fixture for adjusting the light output angle of a linear camera according to claim 1, characterized in that: The auxiliary detection module includes a translation mechanism and a precision manual lifting platform. The translation mechanism is fixedly connected to the interior of the debugging fixture. The translation mechanism is provided with a mobile platform. The bottom of the precision manual lifting platform is fixedly connected to the upper surface of the mobile platform. The upper surface of the debugging fixture is provided with an avoidance groove. The top of the precision manual lifting platform passes through the avoidance groove and extends out of the upper surface of the debugging fixture. The camera calibration seat is fixedly connected to the precision manual lifting platform. The mobile platform drives the precision manual lifting platform to move linearly in the avoidance groove.

10. The fixture for adjusting the light output angle of a linear camera according to claim 9, characterized in that: The auxiliary detection module also includes a camera calibration block, which is located in the moving direction of the precision manual lifting platform and on one side of the avoidance groove.

Images