阅读说明：本技术 一种双联齿轮的缺陷检测装置及方法 (Defect detection device and method for duplicate gear ) 是由 蔡玲民 于娜 于 2020-12-30 设计创作，主要内容包括：本发明公开了一种双联齿轮的缺陷检测装置及方法,包括底座,底座的一端固定安装安装板,安装板上安装定位组件,定位组件两侧的底座上均固定安装固定板,两个固定板上分别固定安装第一摄像头和第二摄像头,底座的另一端顶部固定安装处理器,第一摄像头和第二摄像头均连接处理器,处理器的顶部安装显示模块,处理器一侧的底座上安装输入模块,显示模块和输入模块均电连接处理器。则通过定位组件快速将双联齿轮进行定位夹持,使得双联齿轮的两个齿盘正对第一摄像头和第二摄像头,便于进行图像采集,双联齿轮的图像传输至处理器与标准双联齿轮图像参数对比,从而快速判断双联齿轮有无缺陷,并通过显示模块显示,提高检测效率。(The invention discloses a defect detection device and method for a duplicate gear, and the defect detection device comprises a base, wherein one end of the base is fixedly provided with a mounting plate, a positioning component is arranged on the mounting plate, fixing plates are fixedly arranged on the base on two sides of the positioning component, a first camera and a second camera are respectively and fixedly arranged on the two fixing plates, a processor is fixedly arranged at the top of the other end of the base, the first camera and the second camera are both connected with the processor, a display module is arranged at the top of the processor, an input module is arranged on the base on one side of the processor, and both the display module and the input module are electrically connected with the processor. Then fix a position the centre gripping with duplicate gear through locating component fast for two fluted discs of duplicate gear are just to first camera and second camera, are convenient for carry out image acquisition, and the image transmission of duplicate gear is to treater and standard duplicate gear image parameter contrast, thereby judges fast that the duplicate gear has the flawless, and shows through display module, improves detection efficiency.)

1. The utility model provides a defect detection device of duplicate gear, includes base (1), its characterized in that: one end fixed mounting panel (2) of base (1), install positioning component (3) on mounting panel (2), equal fixed mounting fixed plate (4), two on base (1) of positioning component (3) both sides respectively first camera (5) of fixed mounting and second camera (6) on fixed plate (4), other end top fixed mounting treater (7) of base (1), treater (7) are all connected in first camera (5) and second camera (6), display module (8) are installed at the top of treater (7), install input module (9) on base (1) of treater (7) one side, treater (7) are connected to display module (8) and the equal electricity of input module (9).

2. The defect detecting device for the double gear according to claim 1, wherein: locating component (3) includes spout (35), top and the equal slip joint slider (32) of bottom inner wall of spout (35), stud (34), two are cup jointed to spout (35) internal rotation slider (32) cup joints the both ends of stud (34) through the helicitic texture respectively, top fixed mounting motor (31) of mounting panel (2), the top of output shaft fixed connection stud (34) of motor (31), the one end of the equal fixed connection splint (33) of outer wall of slider (32), V type groove (36) have all been opened to the one side that splint (33) are close to mutually.

3. The defect detecting device for the double gear according to claim 2, wherein: the thread pitches of the two ends of the stud (34) are the same, the rotating directions are opposite, reinforcing rib plates are fixedly arranged between the two sides of the clamping plate (33) and the outer wall of the sliding block (32), and the two V-shaped grooves (36) are symmetrically distributed relative to the connecting line of the first camera (5) and the second camera (6).

4. The defect detecting device for the double gear according to claim 1, wherein: be equipped with a plurality of RS485 serial ports on treater (7), first camera (5), second camera (6), display module (8) and input module (9) all connect the RS485 serial port through the transmission line, first camera (5) and second camera (6) are the CCD camera.

5. The defect detecting device for the double gear according to claim 1, wherein: the processor (7) comprises an image acquisition card, an image processing unit, a comparison unit, an information transmission unit and a data storage unit, wherein the image acquisition card is used for acquiring images shot by the first camera (5) and the second camera (6) and digitizing charge information of the images through an internal A/D conversion circuit, the image processing unit is used for processing the image information transmitted by the image acquisition card, the information transmission unit is used for transmitting information among modules, the data storage unit is used for storing image parameters of a standard duplicate gear which is input in advance, and the comparison unit is used for calling the image parameters of the standard duplicate gear in the data storage unit and comparing the image parameters with an actual duplicate gear image processed by the image processing unit, so that whether the duplicate gear has defects or not is judged.

6. The defect detecting device for the double gear according to claim 5, wherein: the image processing unit comprises noise elimination, form operation and image fusion, wherein the noise elimination is used for filtering and eliminating noise of image data acquired by shooting, the form operation is used for carrying out edge and contour processing on the image, and the image fusion is used for fusing a dual gear fluted disc acquired by the first camera and the second camera.

7. The defect detecting device for the double gear according to claim 6, wherein: the method for eliminating noise by filtering is to use linear filtering and threshold binary segmentation to carry out filtering operation on an original image, the edge and contour processing method is to carry out binarization operation on a threshold of an image to be detected, and carry out pixel-level segmentation on an object and a background in the image through the threshold operation, so as to extract a contour and obtain a geometric contour of a target in an image area.

8. The defect detecting device for the double gear according to claim 1, wherein: fixed mounting has lighting module and luminance sensor on fixed plate (4), luminance sensor responds to external light, and lighting module opens when external light luminance is lower, provides light, and the first camera (5) and second camera (6) of being convenient for shoot.

9. A defect detection method for a duplicate gear is characterized by comprising the following steps:

s1, a connecting shaft between two fluted discs of the duplicate gear is placed between clamping plates (33), a motor (31) drives a stud (34) to rotate, the stud (34) drives two sliding blocks (32) to synchronously approach, so that a V-shaped groove (36) on the clamping plate (33) gradually approaches to the clamping connecting shaft, the duplicate gear is quickly fixed, and the first camera (5) and the second camera (6) just face the two fluted discs of the duplicate gear through self-centering positioning of the V-shaped groove (36), so that quick positioning is realized;

s2, the first camera (5) and the second camera (6) respectively shoot images of two fluted discs of the dual gear, and the image information is transmitted to the processor (7);

s3, the processor (7) receives and converts the image through the image acquisition card and transmits the image to the image processing unit, and the image processing unit is used for filtering, correcting and fusing the image information transmitted by the image acquisition card;

s4, the comparison module calls image parameters of the standard duplicate gear in the data storage unit and compares the image parameters with the actual duplicate gear image processed by the image processing unit, so as to judge whether the duplicate gear has defects, if the parameters of the actual image of the measured duplicate gear fall within the parameter range of the standard duplicate gear image, the measured duplicate gear is judged to be a qualified product, and the qualified product is displayed through the display module; and if the parameters of the actual image of the measured duplicate gear fall out of the parameter range of the standard duplicate gear image, judging that the measured duplicate gear is a 'unqualified product', and displaying through the display module.

Technical Field

The invention relates to the technical field of duplex gear production, in particular to a defect detection device and method for a duplex gear.

Background

The double gears are two gears which are connected into a whole, the gears are called as sliding gears in a transmission and are used for changing the rotating speed or the speed of an output shaft, the defects of two fluted discs need to be detected after the double gears are produced, the existing detection method still adopts a method of manually observing the eyes by means of a magnifying glass, the workload is large, the efficiency is low, the reliability is poor, the omission ratio is high, and the detection method is quite different from the automatic production.

Disclosure of Invention

The present invention is directed to a defect detection apparatus and method for a dual gear, so as to solve the problems mentioned in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a defect detection device of duplicate gear, includes the base, the one end fixed mounting panel of base, install positioning component on the mounting panel, equal fixed mounting fixed plate, two on the base of positioning component both sides first camera of fixed mounting and second camera respectively on the fixed plate, the other end top fixed mounting treater of base, the treater is all connected to first camera and second camera, the top installation display module of treater, install input module on the base of treater one side, the treater is connected to the equal electricity of display module and input module.

An embodiment of preferred, the locating component includes the spout, the equal slip joint slider of top and bottom inner wall of spout, stud is cup jointed to the spout internal rotation, two stud is cup jointed through the helicitic texture respectively to the slider both ends, the top fixed mounting motor of mounting panel, the output shaft fixed connection stud's of motor top, the equal fixed connection splint's of outer wall one end of slider, the one side that the splint are close to all opens V type groove.

In a preferred embodiment, the thread pitches of the two ends of the stud are the same and the rotation directions are opposite, reinforcing rib plates are fixedly mounted between the two sides of the clamping plate and the outer wall of the sliding block, and the two V-shaped grooves are symmetrically distributed about a connecting line of the first camera and the second camera.

In an embodiment, the processor is provided with a plurality of RS485 serial ports, the first camera, the second camera, the display module and the input module are all connected with the RS485 serial ports through transmission lines, and the first camera and the second camera are both CCD cameras.

Preferably, the processor includes an image acquisition card, an image processing unit, a comparison unit, an information transmission unit and a data storage unit, the image acquisition card is configured to acquire images captured by the first camera and the second camera and digitize charge information of the images through an internal a/D conversion circuit, the image processing unit is configured to process image information transmitted by the image acquisition card, the information transmission unit is configured to transmit information between the modules, the data storage unit is configured to store image parameters of the standard duplicate gear that are input in advance, and the comparison unit is configured to call the image parameters of the standard duplicate gear in the data storage unit and compare the image parameters with an actual duplicate gear image processed by the image processing unit, so as to determine whether the duplicate gear has a defect.

In a preferred embodiment, the image processing unit includes noise elimination, morphological operation and image fusion, the noise elimination is used for filtering and eliminating noise of the image data acquired by shooting, the morphological operation is used for performing edge and contour processing on the image, and the image fusion is used for fusing the dual gear fluted discs acquired by the first camera and the second camera.

In a preferred embodiment, the filtering and noise removing method is to perform filtering operation on the original image by using linear filtering and threshold binary segmentation, and the edge and contour processing method is to perform binarization operation on a threshold of the image to be detected, and perform pixel-level segmentation on an object and a background in the image by using the threshold operation, so as to extract a contour and obtain a geometric contour of the object in the image area.

In an embodiment of the present invention, the fixing plate is fixedly provided with an illumination module and a brightness sensor, the brightness sensor senses external light, and the illumination module is turned on to provide light when the external light has low brightness, so as to facilitate the first camera and the second camera to shoot.

A defect detection method for a duplicate gear comprises the following steps:

s1, placing a connecting shaft between two fluted discs of the dual gear between clamping plates, driving a double-end stud to rotate by a motor, driving two sliding blocks to synchronously approach by the double-end stud, enabling a V-shaped groove on the clamping plates to gradually approach to the clamping connecting shaft, so that the dual gear is quickly fixed, and enabling a first camera and a second camera to just face the two fluted discs of the dual gear through self-centering positioning of the V-shaped groove, so that quick positioning is realized;

s2, the first camera and the second camera respectively shoot images of the two fluted discs of the duplicate gear and transmit image information to the processor;

s3, the processor receives and converts the image through the image acquisition card and transmits the image to the image processing unit, and the image processing unit is used for filtering, correcting and fusing the image information transmitted by the image acquisition card;

s4, the comparison module calls image parameters of the standard duplicate gear in the data storage unit and compares the image parameters with the actual duplicate gear image processed by the image processing unit, so as to judge whether the duplicate gear has defects, if the parameters of the actual image of the measured duplicate gear fall within the parameter range of the standard duplicate gear image, the measured duplicate gear is judged to be a qualified product, and the qualified product is displayed through the display module; and if the parameters of the actual image of the measured duplicate gear fall out of the parameter range of the standard duplicate gear image, judging that the measured duplicate gear is a 'unqualified product', and displaying through the display module.

Compared with the prior art, the invention has the beneficial effects that:

1. the dual gear is quickly positioned and clamped through the positioning assembly, so that two fluted discs of the dual gear are over against the first camera and the second camera, and image acquisition is facilitated;

2. the image parameters of the duplex gear to be detected are compared with the parameters of the standard duplex gear through the processor, so that whether the duplex gear is flawless or not and is qualified or not is quickly detected, the efficiency of duplex gear detection is improved, and the automatic production is facilitated.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of module connections according to the present invention;

FIG. 3 is a diagram illustrating the processor architecture of the present invention;

FIG. 4 is a diagram of an image processing unit according to the present invention.

In the figure: 1. a base; 2. mounting a plate; 3. a positioning assembly; 31. a motor; 32. a slider; 33. a splint; 34. a stud; 35. a chute; 36. a V-shaped groove; 4. a fixing plate; 5. a first camera; 6. a second camera; 7. a processor; 8. a display module; 9. and an input module.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a defect detection device of duplicate gear, the on-line screen storage device comprises a base 1, base 1's one end fixed mounting panel 2, install positioning component 3 on the mounting panel 2, equal fixed mounting fixed plate 4 on the base 1 of positioning component 3 both sides, respectively first camera 5 of fixed mounting and second camera 6 on two fixed plates 4, base 1's other end top fixed mounting treater 7, first camera 5 and second camera 6 all connect treater 7, treater 7's top installation display module 8, install input module 9 on the base 1 of treater 7 one side, treater 7 is connected to the equal electricity of display module 8 and input module 9. Then fix a position the centre gripping with the duplicate gear fast through locating component 3 for two fluted discs of duplicate gear are just to first camera 5 and second camera 6, are convenient for carry out image acquisition, and the image transmission of duplicate gear is to treater 7 and standard duplicate gear image parameter contrast, thereby judges fast that the duplicate gear has the flawless, and shows through display module 8, improves detection efficiency.

Further, the positioning assembly 3 includes a sliding groove 35, the top and bottom inner walls of the sliding groove 35 are slidably engaged with the sliding blocks 32, the sliding groove 35 is rotatably sleeved with the stud 34, the two sliding blocks 32 are respectively sleeved with two ends of the stud 34 through a threaded structure, the top of the mounting plate 2 is fixedly provided with the motor 31, an output shaft of the motor 31 is fixedly connected with the top of the stud 34, the outer walls of the sliding blocks 32 are fixedly connected with one end of the clamping plate 33, one side of the clamping plate 33, which is close to the stud, is provided with V-shaped grooves 36, the thread pitches of the two ends of the stud 34 are the same and opposite in rotation direction, reinforcing ribs are fixedly arranged between two sides of the clamping plate 33 and the outer wall of the sliding block 32, the two V-shaped grooves 36 are symmetrically distributed about the connection line of the first camera 5 and the second camera 6, the connection shaft between the two fluted discs of the dual gear is placed between the clamping plate 33, make V type groove 36 on splint 33 be close to the tight connecting axle of clamp gradually to fix duplicate gear fast, and through the location of the self-centering of V type groove 36, make first camera 5 and second camera 6 just to two fluted discs to duplicate gear, realize quick location, be convenient for first camera 5 and second camera 6 carry out image acquisition to two fluted discs of duplicate gear.

Be equipped with a plurality of RS485 serial ports on the treater 7, first camera 5, second camera 6, display module 8 and input module 9 all pass through transmission line connection RS485 serial ports, and first camera 5 and second camera 6 are the CCD camera, the data transmission of being convenient for.

Further, the processor 7 includes an image acquisition card, an image processing unit, a comparison unit, an information transmission unit and a data storage unit, the image acquisition card is used for acquiring images shot by the first camera 5 and the second camera 6 and digitizing charge information of the images through an internal a/D conversion circuit, the image processing unit is used for processing image information transmitted by the image acquisition card, the information transmission unit is used for transmitting information among the modules, the data storage unit is used for storing pre-input image parameters of the standard duplicate gear, and the comparison unit is used for calling the image parameters of the standard duplicate gear in the data storage unit and comparing the image parameters with an actual duplicate gear image processed by the image processing unit, so as to judge whether the duplicate gear has defects.

Furthermore, the image processing unit comprises noise elimination, form operation and image fusion, wherein the noise elimination is used for carrying out filtering and noise elimination on the image data acquired by shooting, the form operation is used for carrying out edge and contour processing on the image, and the image fusion is used for fusing the dual gear fluted disc acquired by the first camera and the second camera.

Further, the filtering and noise eliminating method is to perform filtering operation on the original image by using linear filtering and threshold binary segmentation, the edge and contour processing method is to perform binarization operation on the threshold of the image to be detected, and perform pixel-level segmentation on objects and backgrounds in the image through the threshold operation, so as to extract the contour and obtain the geometric contour of the target in the image area.

Further, fixed mounting has lighting module and luminance sensor on the fixed plate 4, and luminance sensor responds to external light, and lighting module opens when external light luminance is lower, provides light, and the first camera 5 and the second camera 6 of being convenient for shoot.

A defect detection method for a duplicate gear comprises the following steps:

s1, placing the connecting shaft between the two fluted discs of the duplex gear between the clamping plates 33, driving the stud 34 to rotate by the motor 31, driving the two sliders 32 to synchronously approach by the stud 34, and enabling the V-shaped groove 36 on the clamping plates 33 to gradually approach the clamping connecting shaft, so that the duplex gear is quickly fixed, and the first camera 5 and the second camera 6 just face the two fluted discs of the duplex gear through self-centering positioning of the V-shaped groove 36, so that quick positioning is realized;

s2, the first camera 5 and the second camera 6 respectively take images of two fluted discs of the dual gear and transmit the image information to the processor 7;

s3, the processor 7 receives and converts the image through the image acquisition card and transmits the image to the image processing unit, and the image processing unit is used for filtering, correcting and fusing the image information transmitted by the image acquisition card;

s4, the comparison module calls image parameters of the standard duplicate gear in the data storage unit and compares the image parameters with the actual duplicate gear image processed by the image processing unit, so as to judge whether the duplicate gear has defects, if the parameters of the actual image of the measured duplicate gear fall within the parameter range of the standard duplicate gear image, the measured duplicate gear is judged to be a qualified product, and the qualified product is displayed through the display module; and if the parameters of the actual image of the measured duplicate gear fall out of the parameter range of the standard duplicate gear image, judging that the measured duplicate gear is a 'unqualified product', and displaying through the display module.

The working principle is as follows: when the double-gear self-centering positioning device is used, a connecting shaft between two fluted discs of the double-gear is placed between the clamping plates 33, the motor 31 drives the double-end stud 34 to rotate, the double-end stud 34 drives the two sliding blocks 32 to synchronously approach, so that the V-shaped groove 36 on the clamping plates 33 gradually approaches to the clamping connecting shaft, the double-gear is quickly fixed, the first camera 5 and the second camera 6 just face the two fluted discs of the double-gear through self-centering positioning of the V-shaped groove 36, quick positioning is realized, the first camera 5 and the second camera 6 respectively take images of the two fluted discs of the double-gear and transmit the image information to the processor 7, the processor 7 receives and converts the images through the image acquisition card and transmits the images to the image processing unit, the image processing unit is used for filtering, correcting and fusing the image information transmitted by the image acquisition card, and the comparison module is used for adjusting the image parameters of the standard double-gear in the data storage unit and processing the image parameters with the image processing unit Comparing the actual duplex gear image to judge whether the duplex gear has defects, if the parameters of the actual duplex gear image to be detected fall within the parameter range of the standard duplex gear image, judging that the duplex gear to be detected is a qualified product, and displaying the qualified product through a display module; if the parameters of the actual image of the measured duplicate gear fall out of the parameter range of the image of the standard duplicate gear, the measured duplicate gear is judged to be an unqualified product, and the unqualified product is displayed through the display module, so that the efficiency of detecting the duplicate gear is improved, and the automatic production is facilitated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.