Blade and hole image detector

Abstract

The present invention discloses a blade and hole image detector, comprising: a base; a material placing rack, arranged on the base, for placing an object to be tested; an illumination assembly, arranged on the base and located below the object to be tested, the illumination device being used to illuminate the object to be tested; a moving device, arranged on the base; a CCD camera, arranged on the moving device and located above the object to be tested, the moving device drives the CCD camera to move so that the CCD camera collects an image of the object to be tested; a processor, connected to the CCD camera, the processor being used to receive and analyze the image output by the CCD camera. The present invention provides a blade and hole image detector for detecting the periphery of a hole or the quality of a tool blade.

Description

Technical Field

[0001] The invention relates to the technical field of detection equipment, and in particular to a blade and hole forming image detector. Background Art

[0002] The existing image measuring instrument is equipped with lighting and CCD camera, which are located above the target. The visual brightness of the CCD camera is controlled by lighting, and the CCD camera is used to capture the target and output the captured image. The captured image is transmitted to the display, and measurement is performed based on data comparison to achieve the size measurement of the hole or tool. However, it is impossible to detect the periphery of the hole or the quality of the tool blade, such as whether there is a blank or a notch. Summary of the invention

[0003] The main purpose of the present invention is to provide a blade and hole image detector, aiming to provide a blade and hole image detector for detecting the periphery of a hole or the quality of a tool blade.

[0004] To achieve the above-mentioned purpose, the present invention provides a blade and hole image detector, comprising:

[0005] matrix;

[0006] A material placing rack, arranged on the base body, for placing the object to be tested;

[0007] An illumination assembly is provided on the base and is located below the object to be tested, and the illumination device is used to illuminate the object to be tested;

[0008] A moving device, disposed on the base;

[0009] A CCD camera is arranged on the mobile device and is located above the object to be measured, and the mobile device drives the CCD camera to move so that the CCD camera collects an image of the object to be measured;

[0010] A processor is connected to the CCD camera, and is used for receiving and analyzing the image output by the CCD camera.

[0011] Preferably, the blade and hole image detector also includes a coaxial light source arranged on the mobile device, the CCD camera and the coaxial light source are arranged in sequence in a direction perpendicular to the object to be measured, and the coaxial light source is located between the CCD camera and the object to be measured, and the CCD camera has a lens facing the coaxial light source.

[0012] Preferably, the lens is a telecentric lens.

[0013] Preferably, the blade and hole forming image detector further comprises a clamp device, wherein the clamp device comprises a movable outer frame slidably disposed on the material placing rack, and a clamp connected to the movable outer frame, wherein the clamp is used to clamp the object to be tested.

[0014] Preferably, the fixture device further comprises a calibration piece slidably connected to the movable outer frame, the calibration piece and the fixture are arranged relative to each other, the calibration piece has a calibration surface relative to the object to be measured, and the calibration surface is used to calibrate the position of the object to be measured.

[0015] Preferably, the clamp device further comprises a lifting assembly, the lifting assembly comprises a fixing seat fixed to the movable outer frame, a lifting rod slidably connected to the fixing seat, and the clamp is arranged on the lifting rod.

[0016] Preferably, the clamp device further comprises a sliding block slidably arranged on the lifting rod, the lifting rod is provided with a sliding rail slidably matched with the sliding block, and the clamp is arranged on the sliding block.

[0017] Preferably, the clamp device further comprises a tension piece provided on the sliding block, and the tension piece is used to control the sliding block to fix or release the tension piece of the lifting rod.

[0018] Preferably, the fixture includes a support plate arranged on the sliding block, and a first clamping member and a second clamping member slidably arranged on the support plate, the first clamping member and the second clamping member are arranged at intervals, the object to be tested is placed on the support plate, and the first clamping member and the second clamping member are used to clamp both ends of the object to be tested.

[0019] Preferably, the blade and hole image detector also includes a display, and the processor is electrically connected to the display.

[0020] In the technical solution of the present invention, the object to be tested is placed on a material discharging rack, the lighting component is located below the material discharging rack and illuminates the object to be tested, the CCD camera is located above the object to be tested, and the moving device drives the CCD camera to move, so that the CCD camera and the lighting component are respectively located on opposite sides of the object to be tested; in the process of the CCD camera collecting the image of the object to be tested, the light of the lighting component passes through the edge of the object to be tested and enters the CCD camera, so that the CCD camera collects the image of the object to be tested or the image of the object to be tested more accurately; the CCD camera collects the image of the object to be tested and transmits it to the processor. When the object to be tested is a scraper, the processor analyzes the straight line value of the black and white boundary at the blade of the scraper to detect whether the blade has a notch, thereby effectively realizing the blade quality detection; when the object to be tested is a PCB steel mesh, the processor analyzes the aperture value and hole type value of the black and white boundary around the hole to detect whether the hole has a blank, thereby effectively realizing the quality detection of the hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 This is a schematic structural diagram of a blade and hole forming image detector according to a first embodiment of the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure of the clamp device;

[0024] Figure 3 The figure is a schematic diagram of the detection process of the blade and hole image detector according to the embodiment of the present invention.

[0025] Description of Figure Numbers:

[0026] Label name Label name 10 Material rack 621 Support plate 20 Lighting components 622 First clamping piece 30 Mobile devices 623 Second clamping member 31 Y-axis module 63 Lifting components 32 X-axis module 631 Fixed seat 40 CCD Camera 632 Lifting rod 41 Telecentric lens 641 Slide Block 50 Coaxial light source 642 Elastic parts 60 Fixture device 65 Calibration parts 61 Move the frame 70 Object to be tested 62 Fixture 80 scraper

[0027] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] The invention provides a knife edge and hole forming image detector.

[0033] See also Figures 1 to 3 In one embodiment of the present invention, the blade and hole forming image detector comprises:

[0034] matrix;

[0035] A material placing rack 10 is provided on the base body and is used to place the object to be tested 70;

[0036] The lighting assembly 20 is disposed on the base and is located below the object to be tested 70. The lighting device is used to illuminate the object to be tested 70.

[0037] A moving device 30, disposed on the base;

[0038] The CCD camera 40 is disposed on the moving device 30 and is located above the object to be tested 70. The moving device 30 drives the CCD camera 40 to move so that the CCD camera 40 captures an image of the object to be tested 70.

[0039] The processor is connected to the CCD camera 40 , and is used for receiving and analyzing the image output by the CCD camera 40 .

[0040] The structure of the material unloading rack 10 is not limited, and any structure that can suspend and fix the object to be tested 70 is also included in the protection scope of the present invention. In this embodiment, the material unloading rack 10 is preferably two support seats arranged opposite to each other, and both support seats are provided with slide rails, and the object to be tested 70 can be slidably connected between the two slide rails, which is convenient for disassembly.

[0041] In this embodiment, the moving device 30 includes a Y-axis module 31, and an X-axis module 32 arranged at an angle with the Y-axis module 31, and the CCD camera 40 is arranged on the X-axis module 32. The Y-axis module 31 drives the X-axis module 32 and the CCD camera 40 to move horizontally, and the X-axis module 32 drives the CCD camera 40 to move along the X direction. It can be understood that the X-axis module 32 and the Y-axis module 31 can drive the CCD camera 40 to move in the X and Y directions to collect images or videos of the object to be tested 70 placed on the unloading rack 10.

[0042] The blade and hole image detector also includes a control device electrically connected to the processor, the control device is electrically connected to the mobile device 30, the control device is provided with an external line for connecting a power supply, the processor is installed in a computer, and when the user operates the computer, the control information is sent to the control device through the control system preset by the processor, so as to effectively regulate the mobile device 30 and cooperate with the CCD camera 40 to collect the image or video of the object to be tested 70; the image collected by the CCD camera 40 is a black and white image, and the video is a black and white image. After the CCD camera 40 acquires the image or video, the processor performs analysis through the preset analysis system programming, detects the straight line value or the aperture value and the hole type value of the black and white boundary on the image, and effectively detects the quality of the blade or the hole of the object to be tested 70.

[0043] The technical solution of the present invention is that the object to be tested 70 is placed on a material discharging rack 10, the lighting component 20 is located below the material discharging rack 10 and illuminates the object to be tested 70, the CCD camera 40 is located above the object to be tested 70, and the moving device 30 drives the CCD camera 40 to move, so that the CCD camera 40 and the lighting component 20 are respectively located on opposite sides of the object to be tested 70; in the process of the CCD camera 40 collecting the image of the object to be tested 70, the light of the lighting component 20 passes through the edge of the object to be tested 70 and enters the CCD camera 40, so that the CCD camera 40 collects the image of the object to be tested 70 or the image of the image more accurately; the CCD camera 40 collects the image of the object to be tested 70 and transmits it to the processor. When the object to be tested 70 is a scraper 80, the processor analyzes the straight line value of the black and white boundary at the blade of the scraper 80, detects whether the blade has a notch, and effectively realizes the blade quality detection; when the object to be tested 70 is a pcb steel mesh, the processor analyzes the aperture value and the hole type value of the black and white boundary around the hole, detects whether the hole has a blank, and effectively realizes the quality detection of the hole.

[0044] Specifically, the blade and hole image detector also includes a display, and the processor is electrically connected to the display.

[0045] The user can observe the image in the display and / or observe the image being analyzed by the display through the display.

[0046] Preferably, the blade and hole image detector also includes a coaxial light source 50 arranged on the mobile device 30, the CCD camera 40 and the coaxial light source 50 are arranged in sequence in a direction perpendicular to the object to be tested 70, and the coaxial light source 50 is located between the CCD camera 40 and the object to be tested 70, and the CCD camera 40 has a lens facing the coaxial light source 50.

[0047] It can be understood that the coaxial light source 50 has a semi-transparent and semi-reflective mirror, and the CCD camera 40 collects the image or video of the object to be tested 70 through the semi-transparent and semi-reflective mirror through the viewing angle of the lens. The light of the lighting component 20 passes through the edge of the object to be tested 70 and enters the lens through the semi-transparent and semi-reflective mirror, wherein a part of the light is reflected by the semi-transparent and semi-reflective mirror, and the other part enters the lens, thereby effectively diffusely reflecting the light source of the lighting component 20, avoiding interference caused by excessive brightness of the light source of the lighting component 20, and improving the accuracy and reproducibility of the lens vision.

[0048] The coaxial light source 50 can be fixedly connected to the mobile device 30 by snapping. Specifically, the mobile device 30 is provided with a slot, and the periphery of one end of the coaxial light source 50 is embedded in the slot, which is convenient for disassembly and assembly and improves production efficiency.

[0049] In this embodiment, the lens is a telecentric lens 41, which effectively increases the magnification of the image or video.

[0050] Preferably, the blade and hole image detector further includes a clamp device 60 , which includes a movable outer frame 61 slidably disposed on the material placement rack 10 , and a clamp 62 connected to the movable outer frame 61 , and the clamp 62 is used to clamp the object to be tested 70 .

[0051] The movable outer frame 61 includes a first connecting rod, a second connecting rod, a third connecting rod, and a fourth connecting rod. The first connecting rod and the second connecting rod are arranged opposite to each other, and the third connecting rod and the fourth connecting rod are arranged opposite to each other. One end of the first connecting rod and the second connecting rod is fixedly connected to the third connecting rod by welding, and the other end of the first connecting rod and the second connecting rod is fixedly connected to the fourth connecting rod by welding. Obviously, the present design is not limited thereto, and the opposite surfaces of the third connecting rod and the fourth connecting rod may be concavely provided with grooves, and the two ends of the first connecting rod and the second connecting rod are respectively embedded in the corresponding grooves of the third connecting rod and the fourth connecting rod. The movable outer frame 61 has a simple structure and is easy to produce.

[0052] The two ends of the clamp 62 are respectively connected to the first connecting rod and the second connecting rod. When the object to be tested 70 is clamped in the clamp 62, the user can directly slide the movable outer frame 61 between the two slide rails of the material rack 10, so that the object to be tested 70 is fixed above the lighting assembly 20, which effectively facilitates loading and unloading.

[0053] Furthermore, the clamp device 60 also includes a lifting assembly 63 , which includes a fixed seat 631 fixed to the movable outer frame 61 , and a lifting rod 632 slidably connected to the fixed seat 631 , and the clamp 62 is arranged on the lifting rod 632 .

[0054] The fixing seat 631 is provided with a slide rail, and the fixing seat 631 includes two. The two ends of the lifting rod 632 and the two fixing seats 631 are slidably connected to form a lifting structure. By manually adjusting the two ends of the lifting rod 632 to move on the corresponding fixing seat 631, the lifting rod 632 drives the clamp 62 away from or close to the CCD camera 40, thereby effectively realizing lifting; the two fixing seats 631 can be fixedly connected to the first connecting rod and the second connecting rod respectively by screwing. The screwing method can be specifically that threaded holes are set on the opposite surfaces of the first connecting rod and the second connecting rod, and each fixing seat 631 is set with a through hole, and a bolt passes through a corresponding through hole and is threadedly connected to a corresponding threaded hole, and another bolt passes through a corresponding through hole and is threadedly connected to a corresponding threaded hole.

[0055] The lifting assembly 63 further includes a driving member disposed on the base, the driving member having a push rod that can be telescopically moved, the driving member drives the push rod to abut against the lifting rod 632, and drives the lifting rod 632 and the clamp 62 away from or close to the CCD camera 40, effectively realizing automatic lifting;

[0056] When the CCD camera 40 is capturing images or videos, the driving member drives the push rod to drive the lifting rod 632 and the clamp 62 away from or close to the CCD camera 40, so that the distance between the object to be tested 70 clamped in the clamp 62 and the CCD camera 40 is fine-tuned, effectively cooperating with the CCD camera 40 to capture images or videos.

[0057] Furthermore, the clamp device 60 also includes a sliding block 641 slidably disposed on the lifting rod 632 , the lifting rod 632 is provided with a slide rail slidably matched with the sliding block 641 , and the clamp 62 is disposed on the sliding block 641 .

[0058] It can be understood that the fixture 62 slides on the lifting rod 632 through the sliding block 641 to effectively adjust the position; in this embodiment, the top surface of the lifting rod is accurately engraved with equally spaced parallel lines as length measurement and positioning elements, and the line spacing of the linear ruler is generally 1 mm or 0.1 mm. The object 70 to be measured clamped in the fixture 62 can be measured in approximate length by the equally spaced parallel lines of the linear ruler.

[0059] In this embodiment, the clamp device 60 further includes a tension piece 642 disposed on the sliding block 641, and the tension piece 642 is used to control the sliding block 641 to fix or loosen the tension piece 642 of the lifting rod 632. It can be understood that the sliding block 641 is provided with a threaded hole, and the tension piece 642 includes a screw rod and a rotating handle disposed at one end of the screw rod. The screw rod of the tension piece 642 is threadedly connected to the threaded hole. The user rotates the rotating handle to drive the screw rod to tighten or screw it into the threaded hole to achieve positioning, thereby preventing the sliding block 641 from sliding due to the weight biased to one end.

[0060] Preferably, the fixture 62 includes a support plate 621 arranged on the sliding block 641, and a first clamping member 622 and a second clamping member 623 slidably arranged on the support plate 621, the first clamping member 622 and the second clamping member 623 are arranged at intervals, and the object to be tested 70 is placed on the support plate 621, and the first clamping member 622 and the second clamping member 623 are used to clamp the two ends of the object to be tested 70.

[0061] The support plate 621 is formed with a slide groove, and the first clamping member 622 and the second clamping member 623 are L-shaped plates. One end of the first clamping member 622 and the second clamping member 623 is inserted into the slide groove and slides in the slide groove. The bottom wall of the slide groove is provided with a plurality of threaded holes. The first clamping member 622 and the second clamping member 623 are both provided with a through hole connected to any threaded hole. A bolt passes through the through hole and is threadedly connected to any threaded hole, which effectively adjusts the distance between the first clamping member 622 and the second clamping member 623. The object to be tested 70 is clamped at the other end of the first clamping member 622 and the second clamping member 623, which effectively facilitates the clamping of the object to be tested 70.

[0062] Preferably, the fixture device 60 further comprises a calibration piece 65 slidably connected to the movable outer frame 61 , the calibration piece 65 and the fixture 62 are arranged opposite to each other, and the calibration piece 65 has a calibration surface relative to the object to be measured 70 , and the calibration surface is used to calibrate the position of the object to be measured 70 .

[0063] The calibration member 65 is used to calibrate the placement angle of the object to be measured 70. The two ends of the calibration member 65 are slidably connected to the first connecting rod and the second connecting rod, respectively. In this embodiment, the calibration member 65 is preferably a column structure with a rectangular cross section. The column is conducive to production and weight reduction. In order to further reduce the weight and service life of the calibration member 65, the material of the calibration member 65 is preferably made of metal materials such as aluminum alloy.

[0064] The calibration piece 65 is arranged opposite to the fixture 62. A groove is concavely provided on one side of the calibration piece 65 relative to the fixture 62, and the bottom surface of the groove is the calibration surface. When the fixture 62 clamps the object to be measured 70, the calibration piece 65 is translated close to the object to be measured 70, so that the object to be measured 70 abuts against the calibration surface of the calibration piece 65, and the calibration surface of the calibration piece 65 drives the object to be measured 70 to move on the fixture 62, so that one side edge of the object to be measured 70 abuts against the calibration surface, thereby effectively realizing the position calibration of the object to be measured 70 and improving the analysis accuracy of the processor.

[0065] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A blade and hole image detector, characterized in that: include: matrix; A material placing rack, arranged on the base body, for placing the object to be tested; An illumination component is disposed on the base and below the object to be tested, and is used to illuminate the object to be tested; A moving device, disposed on the base; A CCD camera is arranged on the mobile device and is located above the object to be measured, and the mobile device drives the CCD camera to move so that the CCD camera collects an image of the object to be measured; A processor connected to the CCD camera, the processor being used to receive and analyze the image output by the CCD camera; The blade and hole image detector also includes a coaxial light source arranged on the mobile device, the CCD camera and the coaxial light source are arranged in sequence in a direction perpendicular to the object to be measured, and the coaxial light source is located between the CCD camera and the object to be measured, and the CCD camera has a lens facing the coaxial light source; The coaxial light source has a semi-transparent and semi-reflective mirror, a part of the light of the lighting assembly is reflected by the semi-transparent and semi-reflective mirror, and another part of the light of the lighting assembly passes through the edge of the object to be measured and then penetrates the semi-transparent and semi-reflective mirror to enter the lens of the CCD camera; The blade and hole forming image detector further comprises a clamp device, wherein the clamp device comprises a movable outer frame slidably arranged on the material placing rack, and a clamp connected to the movable outer frame, wherein the clamp is used to clamp the object to be tested; The fixture device further comprises a calibration piece slidably connected to the movable outer frame, the calibration piece and the fixture are arranged opposite to each other, the calibration piece has a calibration surface relative to the object to be measured, and the calibration surface is used to calibrate the position of the object to be measured; The movable outer frame includes a first connecting rod, a second connecting rod, a third connecting rod, and a fourth connecting rod, and the first connecting rod and the second connecting rod are arranged opposite to each other; The calibration piece is used to calibrate the placement angle of the object to be measured, and the two ends of the calibration piece are slidably connected to the first connecting rod and the second connecting rod respectively. The calibration piece is arranged opposite to the fixture, and a groove is concavely provided on a side surface of the calibration piece relative to the fixture, and the bottom surface of the groove is the calibration surface. When the fixture clamps the object to be measured, the calibration piece is translated close to the object to be measured, so that the object to be measured abuts against the calibration surface of the calibration piece, and the calibration surface of the calibration piece drives the object to be measured to move on the fixture, so that one side edge of the object to be measured abuts against the calibration surface; The image captured by the CCD camera is a black and white image. After the CCD camera acquires the image, the straight line value or the aperture value and the hole type value of the black and white boundary on the image are detected; The CCD camera collects the image of the object to be tested and transmits it to the processor. When the object to be tested is a scraper, the processor analyzes the straight line value of the black and white boundary at the scraper blade to detect whether the blade has a gap; when the object to be tested is a PCB steel mesh, the processor analyzes the aperture value and hole type value of the black and white boundary around the hole to detect whether the hole has a blank.

2. The blade and hole image detector according to claim 1, characterized in that: The lens is a telecentric lens.

3. The blade and hole image detector according to claim 1 or 2, characterized in that: The clamp device further comprises a lifting assembly, which comprises a fixing seat fixed on the movable outer frame and a lifting rod slidably connected to the fixing seat, and the clamp is arranged on the lifting rod.

4. The blade and hole image detector according to claim 3, characterized in that: The clamp device also includes a sliding block slidably arranged on the lifting rod, the lifting rod is provided with a sliding rail slidably matched with the sliding block, and the clamp is arranged on the sliding block.

5. The blade and hole image detector according to claim 4, characterized in that: The clamp device further comprises a tension piece arranged on the sliding block, and the tension piece is used to control the sliding block to fix or release the tension piece of the lifting rod.

6. The blade and hole image detector according to claim 5, characterized in that: The fixture includes a support plate arranged on the sliding block, and a first clamping member and a second clamping member slidably arranged on the support plate, the first clamping member and the second clamping member are arranged at an interval, the object to be measured is placed on the support plate, and the first clamping member and the second clamping member are used to clamp both ends of the object to be measured.

7. The blade and hole image detector according to any one of claims 1 or 2, 4 to 6, characterized in that: The blade and hole image detector also includes a display, and the processor is electrically connected to the display.

Images