CN115479954A

CN115479954A - Defect detection system based on vision processing

Info

Publication number: CN115479954A
Application number: CN202211290885.4A
Authority: CN
Inventors: 蒋颖; 黄帅; 杨悬
Original assignee: Huizhou Heli Intelligent Technology Co ltd
Current assignee: Huizhou Heli Intelligent Technology Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2022-12-16

Abstract

The invention provides a defect detection system based on visual processing, and relates to the technical field of detection systems. The defect detection system based on visual processing comprises a visual processing workbench, a transfer component, a defect detection component, a first detection component, a second detection component and a detection display screen, wherein a containing cavity is concavely arranged in the middle of the upper surface of the visual processing workbench, the transfer component is installed at one end of the upper surface of the visual processing workbench, the defect detection component is installed in the containing cavity and is used for detecting the cambered surface of a workpiece in multiple directions, and the first detection component is installed on the upper surface of the visual processing workbench and is adjacent to the defect detection component.

Description

Defect detection system based on vision processing

Technical Field

The invention relates to the technical field of detection, in particular to a defect detection system based on visual processing.

Background

Machine vision is a branch of the rapid development of artificial intelligence. In brief, machine vision is to use a machine to replace human eyes for measurement and judgment. The machine vision system converts the shot target into image signals through a machine vision product (namely an image shooting device which is divided into a CMOS (complementary metal oxide semiconductor) and a CCD (charge coupled device), transmits the image signals to a special image processing system to obtain the form information of the shot target, and converts the form information into digital signals according to the information of pixel distribution, brightness, color and the like; the image system performs various calculations on these signals to extract the features of the target, and then controls the operation of the on-site equipment according to the result of the discrimination. At present, a plurality of industries need to carry out quality detection on products, machine vision can be utilized to carry out detection, the defect detection of a workpiece is mainly completed through a mode of detecting a fixed camera, but along with the rise of yield, the detection mode of the camera with a fixed angle obviously cannot meet the production requirement, and the problems of low detection efficiency and low detection precision exist.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a defect detection system based on visual processing to solve at least one of the above technical problems.

The utility model provides a defect detecting system based on vision is handled, including the vision processing workstation, move and carry the subassembly, the defect detecting element, first detecting element, second detecting element and detection display screen, the concave chamber that holds that is equipped with in the middle part of the upper surface of vision processing workstation, move and carry the one end of unit mount in vision processing workstation upper surface, the defect detecting element is installed in holding the intracavity, the cambered surface that the defect detecting element is used for diversified detection work piece, first detecting element installs in vision processing workstation upper surface and neighbouring defect detecting element, first detecting element is used for detecting the cambered surface of work piece, the second detecting element installs in the upper surface of vision processing workstation and is located one side that first detecting element deviates from the defect detecting element, the second detecting element is used for detecting the light transmissivity of work piece and detects the cambered surface radian of work piece, it installs in the one end that the subassembly was kept away from to move in vision processing workstation upper surface to detect the display screen.

In one embodiment, the transfer assembly comprises a transfer cylinder, a transfer plate, a concave block, a holding strip and a clamping piece, the transfer cylinder is mounted at the left end of the upper surface of the visual processing workbench, the transfer plate is connected with the output end of the transfer cylinder, the concave block is mounted on the right side wall of the transfer plate and is supported on the visual processing workbench in a sliding mode, a sliding groove is concavely formed in the upper surface of the concave block and penetrates through two ends of the concave block, the holding strip is convexly arranged at the bottom of one side wall, close to the accommodating cavity, of the concave block in a protruding mode, the clamping piece is mounted in the sliding groove in a sliding mode and used for clamping and fixing a workpiece, and a pressing plate is convexly arranged on one side, facing the transfer cylinder, of the transfer plate.

In one of the embodiment, the holder includes the locating bar, positioning spring, the locating plate, positioning seat and locator card strip, locating bar fixed mounting moves board right side wall upper portion in year, positioning spring's one end is installed in moving board right side wall middle part in year, the locating plate is installed in positioning spring's the other end and is installed in the sliding groove with sliding, the positioning seat is installed in the upper surface of locating plate, locator card strip rotates and installs on the positioning seat, and locator card strip is located the side of locating bar, be connected with the torsional spring between locator card strip and the positioning seat, make locator card strip can reset after keeping away from the direction upset of locating bar, the protruding triangle stopper that is equipped with a plurality of equidistance distribution of direction of locator card strip of locator strip, the triangle stopper is the inclined plane towards the one side of locator card strip, the triangle stopper is used for spacing locator card strip, the both sides of locator spring are provided with clamping structure respectively, clamping structure is used for cooperating the locating plate to carry out the centre gripping action to the work piece.

In one embodiment, the sliding groove is formed in one end, close to the transfer plate, of each of two side walls of the sliding groove, sliding grooves are formed in the bottom surface of each sliding groove, guide grooves are formed in the bottom surface of each sliding groove, the guide grooves are vertically communicated with the sliding grooves, two clamping structures are installed in the two sliding grooves respectively, each clamping structure comprises two linkage springs, a wedge-shaped linkage block, a clamping block and a clamping slide block, the two linkage springs are arranged in parallel, one ends of the two linkage springs are installed on one side wall, away from the positioning plate, of each sliding groove, the wedge-shaped linkage block is installed at the other end of the two linkage springs, a linkage inclined plane is formed in one side, facing the positioning plate, of the wedge-shaped linkage block, the side wall of the positioning plate abuts against the linkage inclined plane, the clamping block is installed in the sliding grooves, the clamping slide block is fixedly installed at the bottom of the clamping block and located in the guide grooves, the clamping slide block can move in the guide grooves, a first rack is convexly arranged on one side, a linkage gear is meshed with the first rack, the linkage gear is installed in the sliding grooves in a rotating mode through a bearing, a second rack is meshed with the second rack, the second rack is fixed on the wedge-shaped linkage block, and the distance between the two linkage inclined planes is gradually increased along the direction away from the transfer cylinder.

In one embodiment, the defect detection assembly comprises two longitudinal limiting plates, two longitudinal abutting springs, an abutting block and a linkage piece, wherein the two longitudinal limiting plates are fixedly arranged at the bottom of the accommodating cavity, the lower ends of the two longitudinal abutting springs are arranged at the bottom of the accommodating cavity, the two longitudinal abutting springs are arranged between the two longitudinal limiting plates, the abutting block is arranged at the upper ends of the two longitudinal abutting springs, longitudinal limiting chutes are formed in the two sides of the abutting block, the two longitudinal limiting plates are respectively clamped in the two longitudinal limiting chutes in a sliding manner, a first inclined surface and a second inclined surface are formed on one side, facing the concave block, of the abutting block, the first inclined surface is positioned below the second inclined surface, a buffer plane is connected between the top of the first inclined surface and the bottom of the second inclined surface, the buffer plane is parallel to the upper surface of the visual processing workbench, the first inclined surface and the second inclined surface are both used for abutting against the abutting strip, a plurality of linkage tooth blocks which are distributed at equal intervals are convexly arranged on one side, the abutting block deviates from the concave block, the linkage piece is rotatably arranged on the two opposite side walls of the accommodating cavity, the abutting block is positioned on one side, and the concave block, and the vertical inclined surface of the second inclined surface is gradually increases in the direction of the moving and the vertical block.

In one embodiment, the linkage member comprises a linkage rod, a linkage main gear, a linkage rear end gear and a linkage front end gear, two ends of the linkage rod are rotatably mounted on two opposite side walls of the accommodating cavity, the linkage main gear is fixedly mounted in the middle of the linkage rod and is meshed with the linkage toothed blocks, the linkage rear end gear and the linkage front end gear are fixedly mounted on the linkage rod and are respectively located on two sides of the linkage main gear, and the linkage rod is perpendicular to the sliding groove.

In one embodiment, the defect detecting assembly further comprises a rear-end square sleeve, a front-end square sleeve, a rear-end support member, a front-end support member and a visual detector, wherein the rear-end square sleeve and the front-end square sleeve are respectively and fixedly arranged on two opposite side walls of the accommodating cavity, the rear-end square sleeve is positioned on one side of the linkage rear-end gear departing from the abutting block, the front-end square sleeve is positioned on one side of the linkage front-end gear departing from the abutting block, the rear-end support member is arranged in the rear-end square sleeve in a penetrating manner, the front-end support member is arranged in the front-end square sleeve in a penetrating manner, and the visual detector is rotatably arranged at the tops of the rear-end support member and the front-end support member; the visual detector comprises a containing cavity, a front end connecting block, a rear end driven gear, a rear end connecting shaft, a connecting short rod, a front end driven gear, a front end connecting shaft, a rear end connecting seat, a rear end connecting shaft and a front end connecting shaft, wherein the rear end driven gear is rotatably installed on one side wall of the containing cavity, the rear end driven gear is meshed with one side, deviating from the supporting block, of a linkage rear end gear, the rear end driven gear is meshed with the rear end driven gear, the rear end connecting shaft is fixedly connected to the top end of a rear end supporting piece, the front end driven gear is rotatably installed on the other side wall of the containing cavity, the front end driven gear is meshed with the front end driven gear, the front end driven gear is meshed with one side, deviating from the supporting block, of the linkage front end gear, the front end connecting seat is convexly arranged on the bottom surface of the visual detector, the rear end connecting seat is rotatably connected with the rear end, and the front end connecting shaft is rotatably connected with the front end connecting shaft.

In one embodiment, the first detection assembly comprises a connecting arm, a first detection part and a movable module, the connecting arm is in an inverted 'L' shape and is installed on the upper surface of the visual processing workbench and located on one side of the accommodating cavity, the first detection part is installed at the end, facing one side of the accommodating cavity, of the connecting arm and is located above the accommodating cavity, and the movable module is arranged on the upper surface of the visual processing workbench and located on one side, away from the concave block, of the accommodating cavity.

In one of them embodiment, the shifting chute has been seted up to vision treatment workstation upper surface, and the shifting chute is located and holds the chamber and carry out the one end that moves the cylinder from moving, the shifting chute deviates from the one end that holds the chamber and is connected with reset spring, move the module including detecting base member and removal slider, it is equipped with the detection arcwall face for falling "L" shape and its top one side is concave, it locates the concave one side of detecting base member upper portion orientation concave piece that locates the removal module to detect the arcwall face orientation, and detect the arcwall face orientation and wait to detect the work piece, it is used for detecting the arcwall face of work piece and whether reaches the requirement of predetermineeing to detect the arcwall face, the protruding bottom of locating the removal module of removal slider, and it is connected with reset spring to move the slider card, it establishes in the shifting chute and can slide in the shifting chute to move the slider card.

In one of the embodiments, the second detection component comprises a shielding box and a second detection piece, the shielding box is installed on the upper surface of the visual processing workbench and located above the moving groove, the shielding box is provided with a moving space towards one side of the moving and loading cylinder, the moving and loading plate can move towards the shielding box and seal the moving space, the second detection piece is installed on the top wall inside the shielding box, two detection lamps are installed on the upper surface of the visual processing workbench, the two detection lamps are located in the shielding box and located on two sides of the moving groove respectively, the detection lamps are used for assisting the second detection piece in detecting the light transmittance of a workpiece and the accuracy of the arc surface of the workpiece, and the visual detector is characterized in that the first detection piece and the second detection piece are both electrically connected with the detection display screen.

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

the defect detection assembly is used for detecting defects on the surface of a workpiece, including but not limited to spots, pits, scratches, chromatic aberration, defects and the like, the defect detection assembly can move up and down under the support of the transfer assembly, the detection of different angles of the workpiece to be detected on the transfer assembly is realized, the first detection assembly is positioned on one side of the defect detection assembly, the transfer assembly can support the other end of the defect detection assembly to move, the defect detection assembly can continuously move downwards under the continuous support of the transfer assembly until the workpiece to be detected is completely contained in the containing cavity, the transfer assembly can continuously move, the workpiece on the transfer assembly can support the first detection assembly, at the moment, the first detection assembly can detect the cambered surface of the workpiece, whether the cambered surface has uneven conditions such as convex particles or not is detected, the transfer assembly can drive the first detection assembly to further move into the second detection assembly together, the transfer assembly can be sealed in the second detection assembly, at the second detection assembly is in a dark environment, the second detection assembly can cooperate with the light transmittance of the workpiece on the visual processing worktable to detect the cambered surface of the workpiece and detect the light transmittance of the workpiece automatically, and detect the workpiece by the workpiece.

Concave block with move the board and can slide on the vision treatment work platform under the promotion that moves the year cylinder, treat that the work piece can place on the sliding groove, support the protruding bottom that is close to holding chamber one side of locating the concave block of holding of strip, support the strip and be used for supporting and hold the defect detection subassembly, support the strip and support the defect detection subassembly and make the defect detection subassembly can reciprocate, carry out the defect detection of different angles to the work piece, be provided with the holder with sliding on the sliding groove, the holder is used for centre gripping and fixed detection work piece, it drops to prevent to treat that the work piece drops, can also drive and treat that the work piece removes together, the stability of detection process has been improved, prevent that the work piece skew from causing the detection error to appear.

The torsional spring is connected with between positioning seat and the locator card strip, locator card strip and locating plate roof mutually perpendicular under the natural state, when the work piece supports to hold the locating plate and remove to moving the transfer board, the locator card strip of locating plate top will support and hold in the inclined plane of triangle stopper and carry out the upset of certain angle along the inclined plane, until crossing the triangle stopper, the locator card strip resets under the effect of torsional spring after crossing the triangle stopper, then continue to support and hold next triangle stopper, two clamping structure can continuously carry out the centre gripping to the work piece when the locating plate removes to the direction that moves the support plate, until the work piece centre gripping is fixed when finishing, the locating plate will no longer continue to move to the direction that moves the support plate with the locator card strip, it can block also between two triangle stoppers to decide the card strip, play the effect of stable clamping structure state.

The locating plate can support and hold in the linkage inclined plane when being supported by the work piece and holding and move to the direction that moves the board that carries, thereby drive wedge linkage piece and remove to the direction that deviates from the locating plate, at this moment the second rack on the wedge linkage piece will drive the linkage gear and rotate, the linkage gear again with first rack intermeshing, thereby drive the grip block and remove to the direction of another grip block, two grip blocks move in opposite directions promptly, so that two grip blocks centre gripping work piece, play fixed and the clamping-effect to the work piece, the stability of work piece when removing has been improved greatly, guarantee effect has also been played for subsequent detection process, avoid causing the condition that the mistake appears in the detection because of the unstability and the skew of work piece, guarantee the accuracy nature of detection, improve and detect the precision.

When the abutting block does not move downwards, the vision detector is aligned to a workpiece to be detected, a vision image of a first angle can be obtained for detection, the first angle is a top view angle, the distance between the workpiece and the vision detector is long, image information of the whole upper surface and the cambered surface of the workpiece can be obtained, defect detection is carried out on the workpiece in a large range, when the abutting strip abuts against the first inclined plane and moves, the rear end connecting shaft and the front end connecting shaft can move downwards together, the descending speed of the rear end connecting shaft and the front end connecting shaft is higher than the descending speed of the abutting block by adjusting the transmission ratio of the gear and the rack, the transmission ratio between the linkage rear end gear and the rear end driven gear is higher than the transmission ratio between the linkage front end gear and the front end driven gear, so that the descending speed of the rear end connecting shaft is higher than the descending speed of the front end connecting shaft, when the abutting strip moves to the buffer plane, the distance from the rear end connecting shaft to the bottom surface of the accommodating cavity is equal to the distance from the front end connecting shaft to the bottom surface of the accommodating cavity, the vision detector and the cambered surface of the workpiece to be detected are positioned at the same height, the vision detector can acquire a vision image of a second angle for detection, the second angle is a front viewing angle, the distance between the workpiece and the vision detector is shorter, the whole detail image information of the cambered surface of the workpiece can be acquired, the defect detection can be more finely performed on the cambered surface of the workpiece, the detection accuracy is improved, when the abutting strip abuts against the second inclined surface and continues to move until the bottom surface of the abutting strip abuts against the top surface of the abutting block, the vision detector is positioned below the upper surface of the vision processing workbench, the vision detector aligns the workpiece to acquire a vision image of a third angle for detection, and the third angle is a front viewing angle, the distance between the workpiece and the vision detector is shorter, the image information of the lower surface and the cambered surface of the workpiece, which is detected from the concave block, can be acquired, the further defect detection can be performed on the lower surface and the more detailed cambered surface, the multi-angle and multi-distance vision detection can be realized, the detection efficiency is greatly improved, the problem of lower detection precision is avoided, the detection precision is improved, and the automation degree is improved.

When the bottom surface of the supporting strip is supported and supported on the top surface of the supporting block, the supporting strip can continue to move in the direction away from the transfer cylinder, the workpiece can also move along with the supporting strip, then the supporting strip is supported and supported on the detection arc-shaped surface of the detection base body, the arc surface is formed on the workpiece, the arc surface on the workpiece and the detection arc-shaped surface are mutually attached, at the moment, the first detection piece can obtain the visual image of the mutual attachment of the first detection piece and the second detection piece, whether the arc surface of the workpiece reaches the preset standard or not can be detected through the attachment degree of the first detection piece and the second detection piece, the automation of the detection process is realized, and the detection efficiency and the detection precision are improved.

The workpiece can be abutted to the detection arc-shaped surface and then continuously moves towards the other end under the work of the transfer cylinder, the moving groove can play a role in guiding the moving module, the workpiece can accurately move to the lower part of the second detection piece, at the moment, the transfer plate can be sealed in the moving space of the shielding box, the interior of the shielding box is in an environment without natural light, the pressing plate can continuously press the top surface of the abutting block when the transfer plate leaves the top surface of the abutting block, the abutting block is prevented from moving upwards, the workpiece is located below the second detection piece at the moment, under the assistance of the two detection lamps, the second detection piece obtains a visual image for detection, the visual image detection results obtained by the visual detector, the second detection piece and the second detection piece can be displayed on the detection display screen, and the detection results can be conveniently observed.

The invention can improve the automation degree and the detection precision, the workpiece is firstly clamped and fixed to ensure the stability of the workpiece during moving, the workpiece is prevented from being subjected to the conditions of position deviation and the like, the visual detector can vertically move, the angle can be adjusted, the defects of whether the surface of the workpiece exists or not can be detected in a targeted manner at multiple angles and multiple distances, the cambered surface, the radian, the light transmittance and the like of the workpiece are detected through the first detection piece and the second detection piece, the detection precision is greatly improved, and the detection efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment.

FIG. 2 is a schematic diagram of another embodiment of the structure shown in FIG. 1.

Fig. 3 is a schematic structural diagram of a clamping member and a clamping structure according to an embodiment.

FIG. 4 is a schematic structural diagram of a defect detection assembly according to an embodiment.

FIG. 5 is a schematic diagram of an embodiment of the structure shown in FIG. 4.

Fig. 6 is a schematic structural view of a mobile module according to an embodiment.

Fig. 7 is a schematic structural diagram of a second detecting element according to an embodiment.

Fig. 8 is a partially enlarged view of a portion a in fig. 1.

Fig. 9 is a partial enlarged view of fig. 2 at B.

Fig. 10 is a partially enlarged view of C in fig. 5.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The invention provides a defect detection system based on visual processing, as shown in fig. 1 to 10, comprising a visual processing workbench 10, a transfer component 20, a defect detection component 30, a first detection component 40, a second detection component 50 and a detection display screen 60, wherein the middle part of the upper surface of the visual processing workbench 10 is concavely provided with a containing cavity 11, the transfer component 20 is installed at one end of the upper surface of the visual processing workbench 10, the defect detection component 30 is installed in the containing cavity 11, the defect detection component 30 is used for detecting the arc surface of a workpiece in multiple directions, the first detection component 40 is installed on the upper surface of the visual processing workbench 10 and is adjacent to the defect detection component 30, the first detection component 40 is used for detecting the arc surface of the workpiece, the second detection component 50 is installed on the upper surface of the visual processing workbench 10 and is positioned at one side of the first detection component 40, which is far away from the defect detection component 30, the second detection component 50 is used for detecting the light transmittance of the workpiece and detecting the arc surface of the workpiece, and the detection display screen 60 is installed at one end of the upper surface of the visual processing workbench 10, which is far away from the transfer component 20.

For example, the vision processing workbench 10 is used for carrying an inspection assembly, a receiving cavity 11 is concavely arranged in the middle of the upper surface of the vision processing workbench 10, the receiving cavity 11 is used for receiving a defect inspection assembly 30, the transferring assembly 20 is used for clamping and moving a workpiece to be inspected, the transferring assembly 20 is located at one end of the surface of the vision processing workbench 10, the transferring assembly 20 can slide on the vision processing workbench 10, the defect inspection assembly 30 is located in the receiving cavity 11, the defect inspection assembly 30 is used for inspecting defects on the surface of the workpiece, including but not limited to spots, pits, scratches, color differences, defects and the like, the defect inspection assembly 30 can move up and down under the abutting of the transferring assembly 20, so as to inspect the workpiece to be inspected on the transferring assembly 20 at different angles, the first inspection assembly 40 is located at one side of the defect inspection assembly 30, the moving component 20 can support the defect detecting component 30 to move towards the other end of the moving component 20, the defect detecting component 30 can continuously move downwards under the continuous support of the moving component 20 until the workpiece is completely accommodated into the accommodating cavity 11, the moving component 20 continuously moves, the workpiece on the moving component 20 can support the first detecting component 40, at this time, the first detecting component 40 can detect the cambered surface of the workpiece, whether the cambered surface has uneven conditions such as convex particles or not is detected, the moving component 20 can drive the first detecting component 40 to further move into the second detecting component 50, the moving component 20 can be sealed in the second detecting component 50, at this time, the second detecting component 50 is in a dark environment, at this time, the second detecting component 50 can detect the light transmittance of the workpiece and the radian of the cambered surface of the workpiece by matching with the light on the visual processing workbench 10, according to the scheme, the workpiece to be detected can be automatically clamped and moved through the transfer component 20, the automatic detection effect is realized, the detection of multiple angles on the surface of the workpiece can be realized through the defect detection component 30, the detection of the cambered surface of the workpiece can be realized through the first detection component 40, and the detection of the light transmittance and the cambered surface radian of the workpiece can be realized through the second detection component 50, so that the automatic detection device is high in automation degree, the detection efficiency can be greatly improved, the detection accuracy is improved, and the detection accuracy is improved.

The transferring assembly 20 comprises a transferring cylinder 21, a transferring plate 22, a concave block 23, a holding strip 24 and a clamping piece 25, wherein the transferring cylinder 21 is installed at the left end of the upper surface of the visual processing workbench 10, the transferring plate 22 is connected with the output end of the transferring cylinder 21, the concave block 23 is installed on the right side wall of the transferring plate 22 and is supported on the visual processing workbench 10 in a sliding mode, a sliding groove 233 is concavely arranged on the upper surface of the concave block 23, the sliding groove 233 penetrates through two ends of the concave block 23, the holding strip 24 is convexly arranged at the lower part of the right side wall of the concave block 23, the clamping piece 25 is installed on the sliding groove 233 in a sliding mode, the clamping piece 25 is used for clamping and fixing a workpiece, and a pressing plate 27 is convexly arranged on one side, facing the transferring plate 22 to the transferring cylinder 21.

The output end of the transferring cylinder 21 is connected with the transferring plate 22, one side of the transferring plate 22, which is far away from the transferring cylinder 21, is provided with a concave block 23, the concave block 23 and the transferring plate 22 can slide on the visual processing workbench 10 under the pushing of the transferring cylinder 21, the upper surface of the concave block 23 is concavely provided with a sliding groove 233, a workpiece to be detected can be placed on the sliding groove 233, a propping strip 24 is convexly arranged at the bottom of one side, which is close to the accommodating cavity 11, of the concave block 23, the propping strip 24 is used for propping against the defect detection assembly 30, the propping strip 24 props against the defect detection assembly 30 so that the defect detection assembly 30 can move up and down, the workpiece can be subjected to defect detection at different angles, a clamping piece 25 is slidably arranged on the sliding groove 233, the clamping piece 25 is used for clamping and fixing the detected workpiece, the workpiece to be detected is prevented from falling off, the workpiece to be detected can also be driven to move together, the stability of the detection process is improved, and the detection error caused by the workpiece deviation is prevented.

The clamping member 25 includes a positioning bar 251, a positioning spring 252, a positioning plate 253, a positioning seat 254 and a positioning clip bar 255, the positioning bar 251 is fixedly installed on the upper portion of the right side wall of the transfer plate 22, one end of the positioning spring 252 is installed in the middle of the right side wall of the transfer plate 22, the positioning plate 253 is installed at the other end of the positioning spring 252 and is slidably installed in the sliding groove 233, the positioning seat 254 is installed on the upper surface of the positioning plate 253, the positioning clip bar 255 is rotatably installed on the positioning seat 254, the positioning clip bar 255 is located on the side of the positioning bar 251, a torsion spring is connected between the positioning clip bar 255 and the positioning seat 254, so that the positioning clip bar 255 can be turned over and reset in a direction away from the positioning bar 251, a plurality of triangular limiting blocks 256 which are equidistantly distributed are convexly arranged in a direction towards the positioning clip bar 255, one surface of the triangular limiting blocks 256 towards the positioning clip bar 255 is an inclined surface with a certain angle, the triangular limiting blocks 256 are used for limiting the positioning clip bar 255, two sides of the positioning spring 252 are respectively provided with clamping structures 26, and the clamping structures 26 are used for cooperating with the positioning plate 253 to clamp a workpiece.

The positioning strip 251 is disposed above the positioning plate 253, the positioning plate 253 is connected to the transfer plate 22 through a positioning spring 252, a positioning seat 254 is mounted on the top wall of the positioning plate 253, a torsion spring is connected between the positioning seat 254 and the positioning clamp strip 255, the positioning clamp strip 255 is perpendicular to the top wall of the positioning plate 253 in a natural state, when the workpiece supports the positioning plate 253 to move towards the transfer plate 22, the positioning clamp strip 255 above the positioning plate 253 supports the inclined plane of the triangular limiting block 256 and overturns along the inclined plane by a certain angle until the workpiece passes over the triangular limiting block 256, the positioning clamp strip 255 resets under the action of the torsion spring after passing over the triangular limiting block 256, and then continues to support the next triangular limiting block 256, when the positioning plate 253 moves towards the transfer plate 22, the two clamping structures 26 can continuously clamp the workpiece, until the workpiece is clamped and fixed, the positioning plate 253 and the positioning clamp strip 255 can no longer move towards the transfer plate 22, and the positioning clamp strip 255 can also be clamped between the two triangular limiting blocks 256, thereby stabilizing the state of the clamping structures 26.

The sliding groove 233 is provided with sliding grooves 231 at one end of two side walls adjacent to the transfer plate 22, a guide groove 232 is provided at the bottom surface of the sliding groove 231, the guide groove is communicated with the sliding groove 233, the two clamping structures 26 are respectively installed in the two sliding grooves, each clamping structure 26 comprises two linkage springs 261, a wedge-shaped linkage block 262, a clamping block 263 and a clamping slider 264, the two linkage springs 261 are arranged in parallel, one end of each linkage spring 261 is installed on one side wall of the sliding groove 231, which is far away from the positioning plate 253, the wedge-shaped linkage block 262 is installed on the other end of each linkage spring 261, a linkage inclined surface 268 is formed on one side of the wedge-shaped linkage block 262, which faces the positioning plate 253, the side wall of the positioning plate 253 abuts against the linkage inclined surface 268, the clamping block 263 is installed in the sliding groove 231, the clamping slider 264 is fixedly installed at the bottom of the clamping block 263 and is located in the guide groove 232, the clamping slider 264 can move in the sliding groove 232, one side of the clamping block 262, a first inclined surface 265 is provided with a first linkage rack 266, the linkage 266 is engaged with a linkage rack 266, the linkage 266 is rotatably installed in the sliding groove 231 through a bearing, the side of the linkage 266 is engaged with a first rack, the second rack is fixed on the side of the second rack which is far away from the sliding groove 21, and the distance between the two linkage blocks is gradually increased along the direction of the wedge-shaped linkage cylinder 267.

One side of the wedge-shaped linkage block 262 facing the positioning plate 253 is formed with a linkage inclined surface 268, the positioning plate 253 is abutted to the linkage inclined surface 268 while being abutted to the workpiece to move in the direction of the transfer plate 22, so as to drive the wedge-shaped linkage block 262 to move in the direction away from the positioning plate 253, at this time, the second rack 267 on the wedge-shaped linkage block 262 drives the linkage gear 266 to rotate, the linkage gear 266 is meshed with the first rack 265, so as to drive the clamping block 263 to move in the direction of the other clamping block 263, namely, the two clamping blocks 263 move oppositely, so as to enable the two clamping blocks 263 to clamp the workpiece, thereby fixing and clamping the workpiece, greatly improving the stability of the workpiece when moving, ensuring the subsequent detection process, avoiding the occurrence of detection errors caused by the instability and deviation of the workpiece, ensuring the detection accuracy, and improving the detection accuracy.

The defect detection assembly 30 comprises two longitudinal limiting plates 31, two longitudinal abutting springs 32, abutting blocks 33 and linkage pieces 34, wherein the two longitudinal limiting plates 31 are fixedly arranged at the bottom of the accommodating cavity 11, the lower ends of the two longitudinal abutting springs 32 are arranged at the bottom of the accommodating cavity 11, the two longitudinal abutting springs 32 are arranged between the two longitudinal limiting plates 31, the abutting blocks 33 are arranged at the upper ends of the two longitudinal abutting springs 32, longitudinal limiting chutes 331 are formed in the two sides of the abutting blocks 33, the two longitudinal limiting plates 31 are respectively clamped in the two longitudinal limiting chutes 331 in a sliding manner, a first inclined surface 332 and a second inclined surface 333 are formed on one side, facing the concave blocks 23, of the abutting blocks 33, the first inclined surface 332 is arranged below the second inclined surface 333, the top of the first inclined surface 332 and the bottom of the second inclined surface 333 are connected with a buffer plane 334, the buffer plane 334 is parallel to the upper surface of the visual processing workbench 10, the first inclined surface 332 and the second inclined surface 333 are both used for abutting the abutting strips 24, a plurality of convex tooth blocks 335 which are distributed at the same distance are arranged on one side, the abutting blocks 33, the side, the abutting blocks 33 are rotatably arranged on one side, which deviates from the concave blocks 23, and the side wall of the abutting blocks 34, and the abutting blocks 23 are rotatably arranged opposite to the side wall of the accommodating cavity 11. The distances between the transfer plate 22 and the first

inclined surfaces

332 and 333 are gradually increased in the vertical upward direction. For example, the slope of the second slope 222 is less than the slope of the first slope 332.

The two longitudinal limiting plates 31 are used for limiting the abutting block 33, so as to prevent the abutting block 33 from laterally deviating when abutted, and the longitudinal abutting spring 32 can play a role of supporting the abutting block 33, in one embodiment, the longitudinal abutting spring 32 has a larger elastic force, so as to play a good supporting role, and only when the abutting strip 24 moves in a direction away from the transfer cylinder 21 and abuts against the abutting block 33, the longitudinal abutting spring 32 can be compressed so as to enable the abutting block 33 to vertically move downwards.

The linkage 34 includes a linkage rod 341, a linkage main gear 342, a linkage rear end gear 343 and a linkage front end gear 344, two ends of the linkage rod 341 are rotatably mounted on two opposite side walls of the accommodating cavity 11, the linkage main gear 342 is fixedly mounted in the middle of the linkage rod 341 and is engaged with the linkage toothed block 335, the linkage rear end gear 343 and the linkage front end gear 344 are both fixedly mounted on the linkage rod 341 and are respectively located at two sides of the linkage main gear 342, and the linkage rod 341 is perpendicular to the sliding groove 233.

The linkage rod 341 is fixedly provided with a linkage main gear 342, a linkage rear end gear 343 and a linkage front end gear 344, when the abutting block 33 moves downwards, one side of the abutting block 33 departing from the concave block 23 is convexly provided with a plurality of linkage tooth blocks 335 distributed at equal intervals, so as to drive the linkage main gear 342 meshed with the abutting block to rotate, and the linkage rear end gear 343 and the linkage front end gear 344 rotate together.

The defect detecting assembly 30 further includes a rear-end square sleeve 354, a front-end square sleeve 364, a rear-end support 35, a front-end support 36 and a visual detector 37, the rear-end square sleeve 354 and the front-end square sleeve 364 are respectively and fixedly mounted on two opposite side walls of the accommodating cavity 11, the rear-end square sleeve 354 is located on one side of the linkage rear-end gear 343 departing from the abutting block 33, the front-end square sleeve 364 is located on one side of the linkage front-end gear 344 departing from the abutting block 33, the rear-end support 35 is inserted into the rear-end square sleeve 354, the front-end support 36 is inserted into the front-end square sleeve 364, and the visual detector 37 is rotatably mounted on the tops of the rear-end support 35 and the front-end support 36; a rear driven gear 351 is rotatably installed on one side wall of the accommodating cavity 11, the rear driven gear 351 and one side of the linkage rear gear 343 departing from the abutting block 33 are mutually meshed, a connecting short rod extends from the middle of the rear supporting member 35 and one side of the bottom facing the abutting block 33, a rear driven rack 352 is fixedly connected between the two connecting short rods, the rear driven rack 352 and the rear driven gear 351 are mutually meshed, a rear connecting shaft 353 is fixedly connected to the top end of the rear supporting member 35, a front driven gear 361 is rotatably installed on the other side wall of the accommodating cavity 11, the front driven gear 361 and one side of the linkage front gear 344 departing from the abutting block 33 are mutually meshed, connecting rods extend from the middle of the front supporting member 36 and one side of the bottom facing the abutting block 33, a front driven rack 362 is fixedly connected between the two connecting rods, the front driven rack 362 and the front driven gear 361 are mutually meshed, a front connecting shaft 363 is fixedly connected to the top end of the front supporting member 36, a rear connecting seat 371 and a front connecting shaft 372 are convexly arranged on the bottom surface of the visual detector 37, the rear connecting seat 371 is rotatably connected with the rear connecting shaft 353, and the front connecting seat 363.

When the holding bar 24 holds the holding block 33 and continuously moves to the other end, the holding block 33 vertically moves downwards, the linkage gear block 335 drives the linkage main gear 342 to rotate, so that the linkage rod 341 rotates, the linkage rear end gear 343 fixedly mounted on the linkage rod 341 and the linkage front end gear 344 also rotate together, the linkage rear end gear 343 drives the rear end driven gear 351 meshed therewith to rotate, the rear end driven gear 351 drives the rear end driven rack 352 meshed therewith to move downwards, the rear end driven rack 352 drives the rear end support 35 to move downwards, the rear end support 35 drives the rear end connecting shaft 353 to move downwards, the linkage front end gear 344 drives the front end driven gear 361 meshed therewith to rotate, the front end driven gear 361 drives the front end driven rack 362 meshed therewith to move downwards, the front end driven rack 362 drives the front end support 36 to move downwards, and the front end 36 drives the front end connecting shaft 363 to move downwards.

When the abutting block 33 is not moved downwards, the vision detector 37 is aligned with the workpiece to be detected and the vision detector 37 has an automatic focusing function, at this time, the vision detector 37 can acquire a vision image at a first angle for detection, the first angle is a top view angle, the distance between the workpiece and the vision detector 37 is long, the image information of the upper surface and the cambered surface of the whole workpiece can be acquired, and the defect detection of the workpiece can be performed in a large range.

For example, in one embodiment, the vision detector 37 is provided with a first camera and a second camera, and the first camera with a deeper focal depth is suitable for capturing images with a long distance in a top view, so as to obtain a clear top view wide-range image.

For example, when the holding bar 24 is held against the first inclined surface 332 and moves, the rear connecting shaft 353 and the front connecting shaft 363 move downward together, the gear ratio between the gear and the rack is adjusted, so that the descending speed of the rear connecting shaft 353 and the front connecting shaft 363 is faster than the descending speed of the holding block 33, the gear ratio between the linkage rear gear 343 and the linkage rear driven gear 351 is greater than the gear ratio between the linkage front gear 344 and the front driven gear 361, so that the descending speed of the rear connecting shaft 353 is faster than the descending speed of the front connecting shaft 363, when the holding bar 24 moves to the buffer plane 334, the distance between the rear connecting shaft 353 and the bottom surface of the accommodating cavity 11 is equal to the distance between the front connecting shaft 363 and the bottom surface of the accommodating cavity 11, and the visual detector 37 is at the same height as the arc surface of the workpiece to be detected, at this time, the visual detector 37 can obtain a visual image of a second angle for detection, the second angle is a front view angle, the distance between the workpiece and the visual detector 37 is shorter, so that the overall detail image information of the arc surface of the workpiece can be obtained, and the defect detection accuracy of the arc surface of the workpiece can be more finely detected.

When the holding strip 24 is held on the second inclined surface 333 and continuously moves until the bottom surface of the holding strip 24 is held on the top surface of the holding block 33, the vision detector 37 is located below the upper surface of the vision processing workbench, and at this time, the vision detector 37 aligns with the workpiece to acquire a vision image of a third angle for detection, the third angle is a look-up angle, the distance between the workpiece and the vision detector 37 is shorter, the image information of the lower surface and the arc surface of the workpiece detected from the concave block 23 can be acquired, further defect detection can be performed on the lower surface and the more detailed arc surface, visual detection of multiple angles and multiple distances can be realized, the detection efficiency is greatly improved, the detection precision is improved, and the automation degree is improved.

For example, in one embodiment, short-distance shooting at the bottom view angle is suitable for the second camera with a shallower focal depth to shoot, and a clearer bottom view image is obtained. The top view and the bottom view are respectively matched with the fine structures at the top large-range area and the bottom of the workpiece, targeted image quality is obtained, and the subsequent processing speed and the processing precision are improved.

The first detecting assembly 40 includes a connecting arm 41, a first detecting member 42 and a movable module 43, the connecting arm 41 is in an inverted "L" shape and is installed on the upper surface of the vision processing workbench 10 and located on one side of the accommodating cavity 11, the first detecting member 42 is installed on the end portion of the connecting arm 41 facing one side of the accommodating cavity 11 and located above the accommodating cavity 11, and the movable module 43 is disposed on the upper surface of the vision processing workbench 10 and located on one side of the accommodating cavity 11 away from the concave block 23.

The moving groove 12 has been seted up to vision processing workstation 10 upper surface, and the moving groove 12 is located and holds the chamber 11 and deviate from the one end that moves the year cylinder 21, the moving groove 12 deviates from the one end that holds the chamber 11 and is connected with reset spring 13, the mobile module 43 is including detecting base member 44 and moving slider 432, it is equipped with detection arcwall face 431 for falling "L" shape and its top one side is concave, it locates the concave one side towards concave piece 23 that locates at detection base member 44 upper portion that moves module 43 to detect arcwall face 431, and detect arcwall face 431 orientation and wait to detect the work piece, it reaches the preset requirement to detect arcwall face that arcwall face 431 is used for detecting the work piece, the protruding bottom of moving module 43 that locates moving slider 432, and moving slider 432 is connected with reset spring 13, moving slider 432 card is established in moving groove 12 and can slide in moving groove 12.

When the bottom surface of the abutting strip 24 abuts against the top surface of the abutting block 33, the abutting strip continues to move in the direction away from the transfer cylinder 21, the workpiece also moves along with the movement, and then abuts against the detection arc-shaped surface 431 of the detection base 44, an arc surface is formed on the workpiece, the arc surface on the workpiece and the detection arc-shaped surface 431 are attached to each other, at this time, the first detection piece 42 can obtain visual images of the two which are attached to each other, whether the arc surface of the workpiece reaches a preset standard or not can be detected through the attachment degree of the two, the automation of a detection process is improved, and the detection efficiency and the detection precision are improved.

The second detecting component 50 includes a shielding box 51 and a second detecting part 52, the shielding box 51 is installed on the upper surface of the visual processing workbench 10, and is located above the moving groove 12, the shielding box 51 has a moving space 511 towards one side of the moving cylinder 21, the moving plate 22 can move towards the shielding box 51 and seal the moving space 511, the second detecting part 52 is installed on the inner top wall of the shielding box 51, the upper surface of the visual processing workbench 10 is provided with two detecting lamps 14, the two detecting lamps 14 are all located in the shielding box 51 and respectively located at two sides of the moving groove 12, the detecting lamps 14 are used for assisting the second detecting part 52 to detect the light transmittance of the workpiece and the accuracy of the radian of the workpiece, the visual detector 37, the first detecting part 42 and the second detecting part 52 are electrically connected with the detecting display screen 60.

The workpiece can be abutted against the detection arc-shaped surface and then continuously moves towards the other end under the work of the transfer cylinder 21, the moving groove 12 can guide the moving module 43 to enable the moving module to accurately move to the lower part of the second detection piece 52, at this time, the transfer plate 22 can be sealed in the moving space 511 of the shielding box 51, so that the shielding box 51 is in an environment without natural light, the pressing plate 27 can continuously press the top surface of the abutting block 33 when the transfer plate 22 leaves the top surface of the abutting block 33 to prevent the abutting block 33 from moving upwards, at this time, the workpiece is positioned below the second detection piece 52, under the assistance of the two detection lamps 14, the second detection piece 52 obtains a visual image for detection, and the visual image detection results obtained by the visual detector 37, the second detection piece 42 and the second detection piece 52 can be displayed on the detection display screen 60.

When the visual processing device is installed, a transfer cylinder 21 is installed at the left end of the upper surface of a visual processing workbench 10, a transfer plate 22 is connected with the output end of the transfer cylinder 21, a concave block 23 is installed on the right side wall of the transfer plate 22 and is supported on the visual processing workbench 10 in a sliding mode, a propping bar 24 is convexly arranged at the bottom of one side wall of the concave block 23 close to a containing cavity 11, a clamping piece 25 is installed on a sliding groove 233 in a sliding mode, a pressing plate 27 is convexly arranged on one side, facing the transfer cylinder 21, of the transfer plate 22, two longitudinal limiting plates 31 are both fixedly installed at the bottom of the containing cavity 11, the lower ends of the two longitudinal propping springs 32 are installed at the bottom of the containing cavity 11, a propping block 33 is installed at the upper ends of the two longitudinal propping springs 32, both ends of a linkage rod 341 are rotatably installed on the two opposite side walls of the containing cavity 11, a linkage main gear 342 is fixedly installed in the middle of the linkage rod 341 and is meshed with the linkage gear 335, and a linkage front-end gear 343 and 344 are both fixedly installed on the linkage rod 341.

The rear-end square sleeve 354 and the front-end square sleeve 364 are respectively fixedly mounted on two opposite side walls of the accommodating cavity 11, the rear-end support 35 is arranged in the rear-end square sleeve 354 in a penetrating manner, the front-end support 36 is arranged in the front-end square sleeve 364 in a penetrating manner, and the visual detector 37 is rotatably mounted at the tops of the rear-end support 35 and the front-end support 36; hold and rotate on the chamber 11 a lateral wall and install rear end driven gear 351, hold and rotate on the other lateral wall of chamber 11 and install front end driven gear 361, connecting arm 41 is installed in visual processing workstation 10 upper surface and is located the one side that holds chamber 11, first detection piece 42 is installed in connecting arm 41 towards the tip that holds chamber 11 one side and is located and holds the chamber 11 top, movable module 43 is installed in the upper surface of visual processing workstation 10, it installs in the upper surface of visual processing workstation 10 to shelter from box 51, and be located the top of shifting chute 12, second detection piece 52 is installed in sheltering from the inboard roof of box 51, the upper surface of visual processing workstation 10 installs two detection lamps 14, visual detector 37, first detection piece 42 and second detection piece 52 all with detect display screen 60 electric connection.

When the device is used, a workpiece is placed in the sliding groove 233 by a manipulator or manually and slightly pressed towards the positioning plate 253, so that the two clamping blocks 263 are clamped on the workpiece, at this time, one end of the workpiece with an arc-shaped surface is protruded out of the sliding groove 233, the transfer cylinder 21 is started to drive the workpiece to move, at this time, the vision detector 37 starts to acquire and detect a vision image of a first angle, the first angle is a top view angle, the distance between the workpiece and the vision detector 37 is long, the whole upper surface and arc surface image information of the workpiece can be acquired, the workpiece is detected in a larger range, the holding strip 24 is moved to be held against the holding block 33 under the operation of the transfer cylinder 21, so that the holding block 33 vertically moves downwards, until the holding strip 24 moves to the buffer plane 334, the vision detector 37 is at the same horizontal height with the workpiece, and acquires and detects a vision image of a second angle, the second angle is a front view angle, the distance between the workpiece and the vision detector 37 is short, the whole detail image information of the workpiece arc surface can be acquired, the arc surface of the workpiece can be detected more finely, the vision detector 37 detects the defect, and the arc surface of the workpiece, when the third angle is detected, the arc surface, the concave image, the holding strip 23 is detected, the arc surface defect, the workpiece can be detected, the arc surface detection detector 37, the detection detector 37 is further detected, the detection is further, the arc surface detection detector 37, the arc surface detection is further, the arc surface detection angle is a third arc surface detection angle is further, the arc surface detection angle is obtained, the arc surface detection angle is a third arc surface detection angle, the arc surface detection angle is obtained, the arc surface detection detector 37, the arc surface detection angle is further shorter, the arc surface detection angle is further detected, the arc surface detection angle is obtained, the arc surface detection angle is further detected, the arc surface detection device 23, the arc surface detection is further obtained, work piece through moving cylinder 21 continues to remove, the cambered surface laminating of work piece is in the detection arcwall face 431 that detects base member 44, at this moment first detection piece 42 can obtain the cambered surface of visual image to the work piece and detect, then the work piece supports to hold and continues to remove until the below that moves second detection piece 52 in detecting arcwall face 431, at this moment because of moving the board 22 and seal in removal space 511 and make the inside no natural light of box 51 that shelters from, through the light that detects lamp 14, second detection piece 52 obtains the visual image and detects, further detect the light transmissivity of work piece and the radian of work piece arcwall face, degree of automation has been improved greatly, the lower condition of detection precision has been avoided, detection efficiency has been promoted, the detection precision has been improved. For example, the vision detector 37 may be a camera system. The first angle is greater than the second angle.

The invention can improve the degree of automation, improve the detection precision and is lower, the workpiece is clamped and fixed firstly to ensure the stability of the workpiece during moving, the workpiece is prevented from being subjected to the conditions of position deviation and the like, the vision detector 37 can move vertically, the angle can be adjusted, the integral and local detection of whether defects exist on each part of the surface of the workpiece in a targeted manner at multiple angles and multiple distances can be realized, the cambered surface, the radian, the light transmittance and the like of the workpiece are detected through the first detection piece 42 and the second detection piece 52, the detection precision is greatly improved, and the detection efficiency is improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above embodiments only express a few embodiments of the present invention, and the description is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a defect detecting system based on vision is handled, a serial communication port, including vision processing workstation (10), move and carry subassembly (20), defect detecting component (30), first detecting component (40), second detecting component (50) and detection display screen (60), the concave chamber (11) that holds that is equipped with in the middle part of the upper surface of vision processing workstation (10), move and carry subassembly (20) and install the one end in vision processing workstation (10) upper surface, defect detecting component (30) are installed in holding chamber (11), defect detecting component (30) are used for the cambered surface of diversified detection work piece, first detecting component (40) are installed in vision processing workstation (10) upper surface and near defect detecting component (30), first detecting component (40) are used for detecting the cambered surface of work piece, second detecting component (50) are installed in the upper surface of vision processing workstation (10) and are located the one side that first detecting component (40) deviates from defect detecting component (30), second detecting component (50) are used for detecting the cambered surface of work piece and detect the light transmissivity to the work piece, the radian of detection component (60) is installed in the upper surface of moving and is kept away from the upper surface of vision processing workstation (20).

2. The defect detection system based on visual processing as claimed in claim 1, wherein the transfer assembly (20) comprises a transfer cylinder (21), a transfer plate (22), a concave block (23), a holding strip (24) and a clamping member (25), the transfer cylinder (21) is installed at the left end of the upper surface of the visual processing workbench (10), the transfer plate (22) is connected with the output end of the transfer cylinder (21), the concave block (23) is installed on the right side wall of the transfer plate (22) and is slidably supported on the visual processing workbench (10), a sliding groove (233) is formed in the concave surface of the concave block (23), the sliding groove (233) penetrates through two ends of the concave block (23), the holding strip (24) is convexly arranged at the bottom of one side wall of the concave block (23) close to the accommodating cavity (11), the clamping member (25) is slidably arranged in the sliding groove (233), the clamping member (25) is used for clamping and fixing a workpiece, and a convex pressing plate (27) is arranged on one side of the transfer plate (22) facing the transfer cylinder (21).

3. The defect detection system based on visual processing as claimed in claim 2, wherein the clamping member (25) comprises a positioning bar (251), a positioning spring (252), a positioning plate (253), a positioning seat (254) and a positioning clip bar (255), the positioning bar (251) is fixedly installed on the upper portion of the right side wall of the transfer plate (22), one end of the positioning spring (252) is installed in the middle of the right side wall of the transfer plate (22), the positioning plate (253) is installed at the other end of the positioning spring (252) and is slidably installed in the sliding groove (233), the positioning seat (254) is installed on the upper surface of the positioning plate (253), the positioning clip bar (255) is rotatably installed on the positioning seat (254), the positioning clip bar (255) is located on the side of the positioning bar (251), a torsion spring is connected between the positioning clip bar (255) and the positioning seat (254), so that the positioning clip bar (255) can be reset after being turned over in a direction away from the positioning bar (251), one surface of the positioning bar (251) facing the positioning bar (255) is provided with a plurality of cams (256) distributed in an equal distance, the triangular structures (255) are respectively provided for clamping the positioning clip bar (256), and the limiting structures (252) are provided for clamping the workpiece (256) and the limiting structures (26) are respectively provided for clamping the positioning clip bar (255).

4. The defect detection system based on visual processing as claimed in claim 3, wherein one end of two side walls of the sliding groove (233) adjacent to the transfer plate (22) is respectively provided with a sliding groove (231), the bottom surface of the sliding groove (231) is provided with a guide groove (232), the guide groove (232) is vertically communicated with the sliding groove (233), two clamping structures (26) are respectively installed in the two sliding grooves (231), each clamping structure (26) comprises two linkage springs (261), a wedge-shaped linkage block (262), a clamping block (263) and a clamping slider (264), the two linkage springs (261) are arranged in parallel, one end of each linkage spring is installed on one side wall of the sliding groove (231) away from the positioning plate (253), the wedge-shaped linkage block (262) is installed on the other end of the two linkage springs (261), the side of the wedge-shaped linkage block (262) facing the positioning plate (253) is provided with a linkage inclined surface (268), the side wall of the positioning plate (253) is abutted against the linkage inclined surface (268), the clamping block (263) is installed in the sliding groove (231), the clamping slider (264) is fixedly installed on one side of the clamping slider (264) which is located in the guide groove (262), and the clamping slider (232) can move towards the first side of the first clamping block (263), the first rack (265) is meshed with a linkage gear (266), the linkage gear (266) is rotatably installed in the sliding groove (231) through a bearing, one side, away from the first rack (265), of the linkage gear (266) is meshed with a second rack (267), the second rack (267) is fixed on the wedge-shaped linkage block (262), and the distance between the two linkage inclined planes (268) is gradually increased along the direction away from the transfer cylinder (21).

5. The defect detection system based on visual processing according to claim 4, wherein the defect detection assembly (30) comprises two longitudinal limit plates (31), two longitudinal abutting springs (32), abutting blocks (33) and a linkage member (34), the two longitudinal limit plates (31) are both fixedly mounted at the bottom of the accommodating cavity (11), the lower ends of the two longitudinal abutting springs (32) are mounted at the bottom of the accommodating cavity (11), the two longitudinal abutting springs (32) are both located between the two longitudinal limit plates (31), the abutting blocks (33) are mounted at the upper ends of the two longitudinal abutting springs (32), the two sides of the abutting blocks (33) are both provided with longitudinal limit chutes (331), two longitudinal limiting plates (31) are respectively clamped in two longitudinal limiting sliding grooves (331) in a sliding manner, a first inclined surface (332) and a second inclined surface (333) are formed on one side, facing the concave block (23), of the abutting block (33), the first inclined surface (332) is positioned below the second inclined surface (333), the top of the first inclined surface (332) and the bottom of the second inclined surface (333) are connected with a buffer plane (334), the buffer plane (334) is parallel to the upper surface of the visual processing workbench (10), the first inclined surface (332) and the second inclined surface (333) are both used for abutting against the abutting strip (24), and a plurality of linkage tooth blocks (a) (333) which are distributed at equal intervals are convexly arranged on one side, facing away from the concave block (23), of the abutting block (33) 335 The linkage piece (34) is rotatably installed on two opposite side walls of the accommodating cavity (11) and located on one side, away from the concave block (23), of the abutting block (33), and the distances between the first inclined surface (332) and the transfer plate (22) and the distances between the second inclined surface (333) and the transfer plate (22) are gradually increased along the vertical upward direction.

6. The defect detection system based on visual processing as claimed in claim 5, wherein the linkage member (34) comprises a linkage rod (341), a linkage main gear (342), a linkage rear end gear (343) and a linkage front end gear (344), two ends of the linkage rod (341) are rotatably mounted on two opposite side walls of the accommodating cavity (11), the linkage main gear (342) is fixedly mounted in the middle of the linkage rod (341) and is meshed with the linkage toothed block (335), the linkage rear end gear (343) and the linkage front end gear (344) are both fixedly mounted on the linkage rod (341) and are respectively located on two sides of the linkage main gear (342), and the linkage rod (341) is perpendicular to the sliding groove (233).

7. The defect detection system based on visual processing according to claim 6, wherein the defect detection assembly (30) further comprises a rear-end square sleeve (354), a front-end square sleeve (364), a rear-end support (35), a front-end support (36) and a visual detector (37), the rear-end square sleeve (354) and the front-end square sleeve (364) are respectively and fixedly mounted on two opposite side walls of the accommodating cavity (11), the rear-end square sleeve (354) is located on one side of the linkage rear-end gear (343) departing from the abutting block (33), the front-end square sleeve (364) is located on one side of the linkage front-end gear (344) departing from the abutting block (33), the rear-end support (35) is arranged in the rear-end square sleeve (354), the front-end support (36) is arranged in the front-end square sleeve (364), and the visual detector (37) is rotatably mounted on the tops of the rear-end support (35) and the front-end support (36); a rear driven gear (351) is rotatably arranged on one side wall of the accommodating cavity (11), and the rear driven gear (351) and one side of the linkage rear gear (343) departing from the holding block (33) are mutually meshed, the connecting short rods are respectively extended from the middle part and one side of the bottom of the rear support (35) facing the holding block (33), a rear driven rack (352) is fixedly connected between the two connecting short rods, the rear driven rack (352) is mutually meshed with the rear driven gear (351), the top end of the rear support (35) is fixedly connected with a rear connecting shaft (353), the other side wall of the accommodating cavity (11) is rotatably provided with a front driven gear (361), and front end driven gear (361) and linkage front end gear (344) deviate from the one side intermeshing that supports and hold piece (33), the connecting rod has all been extended towards one side that supports and hold piece (33) with the bottom in front end support piece (36) middle part, fixedly connected with front end driven rack (362) between two connecting rods, front end driven rack (362) and front end driven gear (361) intermeshing, front end support piece (36) top fixedly connected with front end connecting axle (363), the protruding rear end connecting seat (371) and front end connecting seat (372) that are equipped with of bottom surface of vision detector (37), rear end connecting seat (371) rotate with rear end connecting axle (353) and are connected, front end connecting seat (372) rotate with front end connecting axle (363) and are connected.

8. The defect detection system based on visual processing according to claim 7, wherein the first detection assembly (40) comprises a connecting arm (41), a first detection member (42) and a movable module (43), the connecting arm (41) is in an inverted L shape, and is installed on the upper surface of the visual processing workbench (10) and located on one side of the accommodating cavity (11), the first detection member (42) is installed on the end portion, facing one side of the accommodating cavity (11), of the connecting arm (41) and located above the accommodating cavity (11), and the movable module (43) is arranged on the upper surface of the visual processing workbench (10) and located on one side, facing away from the concave block (23), of the accommodating cavity (11).

9. The defect detection system based on visual processing as claimed in claim 8, wherein a moving groove (12) is formed in the upper surface of the visual processing workbench (10), the moving groove (12) is located at one end, departing from the transfer cylinder (21), of the accommodating cavity (11), one end, departing from the accommodating cavity (11), of the moving groove (12) is connected with a return spring (13), the moving module (43) comprises a detection base body (44) and a moving slider (432), the detection base body (44) is in an inverted L shape, a detection arc-shaped surface (431) is concavely arranged on one side of the top of the detection base body (44) and is concavely arranged on one side, facing towards the concave block (23), of the detection base body (43), the detection arc-shaped surface (431) faces towards a workpiece to be detected, the detection arc-shaped surface (431) is used for detecting whether the arc-shaped surface of the workpiece reaches a preset requirement, the moving slider (432) is convexly arranged at the bottom of the moving module (43), the moving slider (432) is connected with the return spring (13), and the moving slider (432) is clamped in the moving groove (12) and can slide in the moving groove (12).

10. The defect detection system based on visual processing according to claim 9, wherein the second detection assembly (50) comprises a shielding box (51) and a second detection piece (52), the shielding box (51) is installed on the upper surface of the visual processing workbench (10) and located above the moving groove (12), a moving space (511) is opened on one side of the shielding box (51) facing the transferring cylinder (21), the transferring plate (22) can move towards the shielding box (51) and seal the moving space (511), the second detection piece (52) is installed on the top wall of the inner side of the shielding box (51), two detection lamps (14) are installed on the upper surface of the visual processing workbench (10), the two detection lamps (14) are located in the shielding box (51) and located on two sides of the moving groove (12), the detection lamps (14) are used for assisting the second detection piece (52) in detecting the light transmittance of the workpiece and the accuracy of the arc-shaped surface of the workpiece, and the visual detector (37), the first detection piece (42) and the second detection piece (52) are electrically connected with the detection display screen (60).