CN110712982A - Off-line nuclear fuel pellet appearance surface defect inspection system - Google Patents
Off-line nuclear fuel pellet appearance surface defect inspection system Download PDFInfo
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- CN110712982A CN110712982A CN201910832373.8A CN201910832373A CN110712982A CN 110712982 A CN110712982 A CN 110712982A CN 201910832373 A CN201910832373 A CN 201910832373A CN 110712982 A CN110712982 A CN 110712982A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/82—Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/24—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles
- B65G47/256—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles removing incorrectly orientated articles
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- Mechanical Engineering (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses an off-line inspection system for appearance surface defects of nuclear fuel pellets, which comprises a feeding pushing mechanism, a peripheral surface rotation detection mechanism, a shifting mechanism, an end surface detection mechanism, a discharging pre-arrangement mechanism and a discharging mechanism, wherein the feeding pushing mechanism is used for feeding the whole tray and conveying the pellets row by row, the peripheral surface rotation detection mechanism is in butt joint with the feeding pushing mechanism, the shifting mechanism is used for shifting the pellets transversely and is in butt joint with the peripheral surface rotation detection mechanism, the end surface detection mechanism is in butt joint with the shifting mechanism, the discharging pre-arrangement mechanism is in butt joint with the end surface detection mechanism, and the discharging mechanism is used. The invention sequentially carries out sectional detection on the peripheral surface and the end surface of the nuclear fuel pellet by using a production line type conveying mode, realizes whole-tray feeding and row-by-row pushing by using the feeding pushing mechanism, realizes the integration of comprehensive pellet apparent defect detection and production line transmission, effectively improves the efficiency of pellet apparent defect detection, and also re-trays the detected pellets by using the blanking mechanism, ensures the integrity of the detection process and is convenient for the subsequent treatment and use of the pellets.
Description
Technical Field
The invention relates to the technical field of appearance detection of nuclear fuel pellets, in particular to an off-line detection system for appearance surface defects of the nuclear fuel pellets.
Background
Nuclear fuel pellets are the core portion of a nuclear fuel element, typically small cylindrical blocks. The surface of the nuclear fuel pellet needs to be detected after the nuclear fuel pellet is manufactured, so that appearance defects such as material shortage, material excess, cracks and the like are avoided. Because the pellet itself is small in size, if a single grabbing is inconvenient to detect, the assembly line type detection is an effective detection mode through automation, but it is difficult to detect the appearance of the pellet on the assembly line type equipment in a one-time and comprehensive mode, and the nuclear fuel pellets are mostly arranged and placed in a whole tray in an off-line state, so that the problem of accurately conveying and detecting the pellets placed in the whole tray is also a question worth thinking of technicians in the field.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a nuclear fuel pellet appearance surface defect off-line inspection system which can be used for stably and comprehensively detecting.
In order to achieve the purpose, the technical scheme is as follows:
an off-line inspection system for the appearance surface defects of nuclear fuel pellets comprises a feeding pushing mechanism, a circumferential surface rotation detection mechanism, a shifting mechanism, an end surface detection mechanism, a discharging pre-arrangement mechanism and a discharging mechanism, wherein the feeding pushing mechanism is used for feeding the whole tray and conveying the pellets row by row, the circumferential surface rotation detection mechanism is in butt joint with the feeding pushing mechanism, the shifting mechanism is used for transversely shifting the pellets and is in butt joint with the circumferential surface rotation detection mechanism, the end surface detection mechanism is in butt joint with the shifting mechanism, the discharging pre-arrangement mechanism is in butt joint with the end surface detection mechanism, and the discharging mechanism is in.
Furthermore, the feeding pushing mechanism comprises a fixedly arranged feeding chassis, a feeding discharging groove plate, a feeding linear shaft, a feeding moving block, a feeding motor, a feeding tray and a feeding pushing mechanism, wherein the feeding discharging groove plate is arranged on the feeding chassis and is in butt joint with the circumferential surface rotation detection mechanism, the feeding linear shaft is arranged on the feeding chassis and moves along the feeding direction, the feeding moving block is arranged on the feeding linear shaft, the feeding motor is arranged on the feeding linear shaft and is used for driving the feeding moving block, the feeding tray is arranged on the feeding chassis and is fixedly connected with the feeding moving block, the feeding pushing mechanism is arranged above the feeding chassis through a support and corresponds to the feeding discharging groove plate, and a row of grooves on the feeding tray correspond to the feeding discharging groove plate.
The feeding and pushing mechanism comprises an upper pushing linear shaft transversely arranged above the feeding base, a pushing moving plate sleeved on the upper pushing linear shaft, an upper pushing motor arranged on the upper pushing linear shaft and used for driving the pushing moving plate to move, a pushing avoiding cylinder arranged on the pushing moving plate and capable of lifting, and a feeding push rod arranged at the lower part of the movable end of the pushing avoiding cylinder and corresponding to the feeding and discharging chute plate.
The circumferential surface rotation detection mechanism comprises a rotation support frame which is butted with the feeding pushing mechanism and is provided with a detection discharge chute plate, a pair of long rotors which are arranged on the rotation support frame along the direction of material conveying and are used for driving the core block to rotate, a rotation transmission assembly and a rotation motor which are arranged on the rotation support frame and are used for driving the long rotors to rotate, a detection linear shaft which is arranged above the long rotors through a support, a detection moving frame which is sleeved on the detection linear shaft, a detection motor which is arranged on the detection linear shaft and is used for driving the detection moving frame to move, a linear camera and a linear array light source which are arranged on the detection moving frame and correspond to the long rotors, and a material picking transmission line mechanism of which one end is butted with the detection discharge chute plate and the other end is butted with the material picking.
The material picking transmission line mechanism comprises a pair of material picking driven wheels which are arranged side by side through a shaft seat and correspond to the detection discharge groove plate, a material picking driving wheel and a material picking tensioning wheel which are arranged on the longitudinal surface of the material picking driven wheels relative to the material picking driven wheels, a material picking double-row circular belt wound on the material picking driven wheels, the material picking driving wheel and the material picking tensioning wheel, a material picking motor used for driving the material picking driving wheel, a material picking supporting plate arranged between the pair of material picking driven shafts and used for supporting the material picking double-row circular belt, material picking flanges arranged on the material picking supporting plate and located on two sides of the advancing direction of the material picking double-row circular belt, and a material picking port arranged on the material picking flanges, wherein the material picking discharge groove plate butted with the material picking mechanism is arranged at the other end of the material picking driven wheels relative to the detection discharge groove plate.
Further, the material stirring mechanism comprises a material stirring mounting plate arranged at one end of the discharge end of the circumferential rotation detection mechanism, a material stirring motor arranged on the material stirring mounting plate, a material stirring rotating wheel arranged on an output shaft of the material stirring motor, and a plurality of material stirring arms arranged on the material stirring rotating wheel, wherein the material stirring arms are used for transversely stirring out the core blocks from the circumferential rotation detection mechanism.
Furthermore, the end face detection mechanism comprises an end face detection rolling groove in butt joint with the material stirring mechanism, a front end detection port, a rear end detection port and a waste removing port which are arranged on two sides of the end face detection rolling groove and distributed along the trend of the end face detection rolling groove, a front end face array camera and a front end face array light source which are arranged corresponding to the front end detection port, and a rear end face array camera and a rear end face array light source which are arranged corresponding to the rear end detection port, wherein the other end of the end face detection rolling groove is in butt joint with the blanking pre-arranging mechanism.
Furthermore, the discharging pre-discharging mechanism comprises a pre-discharging feeding groove plate which is in butt joint with the end face detection mechanism, a pair of pre-discharging driven wheels which are arranged side by side through a shaft seat and correspond to the pre-discharging feeding groove plate, a pre-discharging driving wheel and a pre-discharging tensioning wheel which are arranged on the longitudinal surface relative to the pre-discharging driven wheels, a pre-discharging double-row circular belt which is wound on the pre-discharging driven wheels, the pre-discharging driving wheel and the pre-discharging tensioning wheel, a pre-discharging motor which is used for driving the pre-discharging driving wheel, a pre-discharging supporting plate which is arranged between the pair of pre-discharging driven shafts and used for supporting the pre-discharging double-row circular belt, pre-discharging blocking edges which are arranged on the pre-discharging supporting plate and are positioned on two sides of the advancing direction of the pre-discharging double.
Furthermore, the blanking mechanism comprises a fixedly arranged blanking bottom frame, a blanking feeding trough plate, a blanking linear shaft, a blanking moving block, a blanking motor, a blanking tray and a blanking pushing mechanism, wherein the blanking feeding trough plate is arranged on the blanking bottom frame and is in butt joint with the blanking pre-arranging mechanism, the blanking linear shaft is arranged on the blanking bottom frame and moves along the blanking direction, the blanking moving block is arranged on the blanking linear shaft, the blanking motor is arranged on the blanking linear shaft and is used for driving the blanking moving block, the blanking tray is arranged on the blanking bottom frame and is fixedly connected with the blanking moving block, the blanking pushing mechanism is arranged above the blanking bottom frame through a support and corresponds to the blanking feeding trough plate, and a row of grooves on.
Furthermore, the blanking pushing mechanism comprises a lower blanking linear shaft transversely arranged above the blanking bottom frame, a blanking moving plate sleeved on the lower blanking linear shaft, a lower blanking motor arranged on the lower blanking linear shaft and used for driving the blanking moving plate to move, and a blanking clamping jaw arranged on the blanking moving plate and corresponding to the blanking feeding trough plate.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention sequentially carries out sectional detection on the peripheral surface and the end surface of the pellet by using a production line type conveying mode, realizes the integration of comprehensive pellet appearance detection and production line transmission, and effectively improves the efficiency of pellet appearance detection.
(2) The invention skillfully arranges the long rotor to bear and rotate the core block, greatly facilitates the appearance defect detection of the peripheral surface of the core block by the linear array camera above, and eliminates the unqualified core block after the peripheral surface detection, thereby reducing the burden of the subsequent detection process to a certain extent.
(3) The invention skillfully utilizes the material poking arm to change the vertically conveyed core blocks into the transverse conveying and separate the core blocks one by one, thereby greatly facilitating the subsequent detection of the end surfaces of the core blocks.
(4) According to the invention, the blanking pre-discharging mechanism is configured before blanking and discharging, and the pellets conveyed one by one are gathered and pre-discharged again, so that the reciprocating times of the blanking mechanism in the discharging process are effectively reduced, and the blanking and discharging efficiency is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the feeding pusher mechanism.
Fig. 3 is a schematic structural view of the circumferential surface rotation detection mechanism.
Fig. 4 is a schematic structural diagram of the material poking mechanism and the end face detection mechanism.
Fig. 5 is a schematic structural diagram of a blanking pre-arranging mechanism.
Fig. 6 is a schematic structural view of the blanking mechanism.
Wherein, the names corresponding to the reference numbers are:
100-a feeding pushing mechanism, 101-a feeding chassis, 102-a feeding discharging groove plate, 103-a feeding linear shaft, 104-a feeding motor, 105-a feeding disc, 106-a table top, 107-a linear guide rail, 110-a feeding and pushing mechanism, 111-a feeding linear shaft, 112-a pushing moving plate, 113-a feeding motor, 114-a pushing avoiding cylinder and 115-a feeding push rod,
200-a peripheral surface rotation detection mechanism, 201-a rotation support frame, 202-a long rotor, 203-a rotation transmission assembly, 204-a rotation motor, 205-a detection linear shaft, 206-a detection moving frame, 207-a detection motor, 208-a linear array camera, 209-a linear array light source, 210-a material rejecting transmission line mechanism, 211-a material rejecting driven wheel, 212-a material rejecting driving wheel, 213-a material rejecting tension wheel, 214-a material rejecting double-row circular belt, 215-a material rejecting motor, 216-a material rejecting support plate, 217-a material rejecting flange, 218-a material rejecting port, 219-a material rejecting discharge groove plate,
300-a material-shifting mechanism, 301-a material-shifting mounting plate, 302-a material-shifting motor, 303-a material-shifting rotating wheel, 304-a material-shifting arm,
400-end face detection mechanism, 401-end face detection rolling slot, 402-front end detection port, 403-rear end detection port, 404-waste removal port, 405-front end face array camera, 406-front end face array light source, 407-rear end face array camera, 408-rear end face array light source,
500-blanking pre-arranging mechanism, 501-pre-arranging feeding trough plate, 502-pre-arranging driven wheel, 503-pre-arranging driving wheel, 504-pre-arranging tension wheel, 505-pre-arranging double-row circular belt, 506-pre-arranging motor, 507-pre-arranging supporting plate, 508-pre-arranging flange, 509-pre-arranging fixed clamping jaw,
600-blanking mechanism, 601-blanking bottom frame, 602-blanking feeding trough plate, 603-blanking linear shaft, 604-blanking motor, 605-blanking tray, 610-blanking pusher mechanism, 611-lower blanking linear shaft, 612-blanking moving plate, 613-lower blanking motor and 614-blanking clamping jaw.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include, but are not limited to, the following examples.
Examples
As shown in fig. 1 to 6, the off-line inspection system for the appearance surface defects of nuclear fuel pellets comprises a feeding pushing mechanism 100 for feeding the whole tray and conveying the pellets row by row, a peripheral surface rotation detection mechanism 200 connected with the feeding pushing mechanism, a shifting mechanism 300 for shifting the pellets transversely connected with the peripheral surface rotation detection mechanism, an end surface detection mechanism 400 connected with the shifting mechanism, a discharging pre-arrangement mechanism 500 connected with the end surface detection mechanism, and a discharging mechanism 600 connected with the discharging pre-arrangement mechanism and arranging the pellets into a tray. In order to improve the stability of the mounting structure of each mechanism, the system can be also provided with an electrical cabinet, and a mounting platform, a mounting bracket, a power energy source and other components are arranged in the electrical cabinet, so that each mechanism can be stably and accurately arranged and operated.
The feeding pushing mechanism 100 comprises a fixed feeding chassis 101, a feeding discharging trough plate 102 arranged on the feeding chassis and butted with the peripheral surface rotation detection mechanism, a feeding linear shaft 103 arranged on the feeding chassis and moving along the feeding direction, a feeding moving block arranged on the feeding linear shaft, a feeding motor 104 arranged on the feeding linear shaft and used for driving the feeding moving block, a feeding tray 105 arranged on the feeding chassis and fixedly connected with the feeding moving block, and a feeding pushing mechanism 110 arranged above the feeding chassis through a bracket and corresponding to the feeding discharging trough plate, wherein a row of grooves on the feeding tray correspond to the feeding discharging trough plate, the feeding chassis mainly limits the two ends of the feeding tray, the feeding tray is in the form of a corrugated plate, the corrugated plate can be regarded as a structure formed by connecting a plurality of long V-shaped grooves side by side, so that the whole tray of nuclear fuel to be inspected can be placed, the groove direction of the long V-shaped groove is vertical to the moving direction of the feeding disc, the groove body on the feeding and discharging groove plate corresponds to the long V-shaped groove, and the feeding and pushing mechanism pushes a row of nuclear fuel pellets placed in the long V-shaped groove to the feeding and discharging groove plate at each time. The feeding tray can be supported by a table-board 106, and the table-board is connected and fixed with the feeding moving block, so that the table-board, the feeding tray and the core blocks placed on the feeding tray are driven to move along the feeding direction, in order to improve the stability of the table-board and the feeding tray, linear guide rails 107 along the feeding direction can be arranged on two sides of the feeding linear shaft, and the bottom of the table-board is supported and fixed by the linear guide blocks matched with the linear guide rails. The feeding linear shaft can adopt the existing integrated equipment, the support and the bottom of the feeding chassis are fixedly arranged, the transmission screw rod in the feeding linear shaft is driven by the feeding motor to stably drive the feeding moving block to move, and in the structure shown in figure 2, the feeding linear shaft only shows that the end support is fixedly arranged, and the middle support wrapping the transmission screw rod is not shown.
Further, the feeding and pushing mechanism 110 includes an upper pushing linear shaft 111 disposed above the feeding chassis and fixedly connected to the mounting bracket inside the electrical cabinet, a pushing moving plate 112 sleeved on the upper pushing linear shaft, an upper pushing motor 113 disposed on the upper pushing linear shaft and used for driving the pushing moving plate to move, a pushing avoiding cylinder 114 disposed on the pushing moving plate and capable of lifting, and a feeding push rod 115 disposed below the movable end of the pushing avoiding cylinder and corresponding to the feeding discharging chute plate. The upper pushing linear shaft is similar to the feeding linear shaft, the existing integrated equipment is also adopted, an end support and a middle support of the upper pushing linear shaft wrap an internal transmission screw rod, a guide plate can be arranged on the middle support, the pushing moving plate is connected with the transmission screw rod, and the pushing moving plate can stably move along the guide plate under the driving of an upper pushing motor.
As shown in fig. 3, the circumferential rotation detecting mechanism 200 includes a rotation bracket 201 abutting against the feeding and discharging slot plate of the feeding and pushing mechanism and having a detecting and discharging slot plate, a pair of long rotors 202 disposed on the rotation bracket along the feeding direction and driving the core block to rotate, a rotation transmission assembly 203 and a rotation motor 204 disposed on the rotation bracket and driving the long rotors to rotate, a detecting linear shaft 205 disposed above the long rotors through a bracket, a detecting moving frame 206 sleeved on the detecting linear shaft, a detecting motor 207 disposed on the detecting linear shaft and driving the detecting moving frame to move, a linear array camera 208 and a linear array light source 209 disposed on the detecting moving frame and corresponding to the long rotors, and a material picking transmission line mechanism 210 having one end abutting against the detecting and discharging slot plate and the other end abutting against the material picking mechanism. The detection linear shaft adopts the existing integrated equipment which is the same as the upper pushing linear shaft. The long rotors are arranged side by side, a rotary groove for placing the core block is formed between the long rotors and the long rotors, the two ends of the rotary groove are respectively in butt joint with the feeding discharging groove plate and the detection discharging groove plate, and notches corresponding to the feeding discharging groove plate and the detection discharging groove plate are arranged at the two ends of the rotary support frame. And a core block diameter measuring instrument for measuring the diameter of the core block can be arranged at the position for detecting the discharging groove plate.
Further, the material rejecting transmission line mechanism 210 comprises a pair of material rejecting driven wheels 211 which are arranged side by side through a shaft seat and correspond to the detection discharging groove plates, a material rejecting driving wheel 212 and a material rejecting tensioning wheel 213 which are arranged on the longitudinal surface of the material rejecting driven wheels, a material rejecting double-row circular belt 214 wound on the material rejecting driven wheels, the material rejecting driving wheel and the material rejecting tensioning wheel, a material rejecting motor 215 for driving the material rejecting driving wheel, a material rejecting supporting plate 216 arranged between the pair of material rejecting driven shafts and used for supporting the material rejecting double-row circular belt, material rejecting blocking edges 217 arranged on the material rejecting supporting plate and located on two sides of the advancing direction of the material rejecting double-row circular belt, and material rejecting ports 218 arranged on the material rejecting blocking edges, wherein the material rejecting driven wheels are provided with material rejecting discharging groove plates 219 butted with the material rejecting mechanism relative to the other ends of the detection discharging groove plates. The two material-removing driven wheels are arranged at intervals along the material feeding and discharging direction on the same mounting height, and the mounting height of the two material-removing driven wheels is matched with the detection discharge groove plate, so that the stable transition of the nuclear fuel pellets from the detection discharge groove plate to the material-removing double-row circular belt can be realized. The lower part of the material-removing baffle edge is used for limiting the material-removing double-row round belt, the upper part of the material-removing baffle edge is used for limiting nuclear fuel pellets conveyed on the material-removing double-row round belt, and when the pellets detected to have apparent defects pass through the material-removing opening, the pellets are blown off from the round belt from the material-removing opening by an externally arranged air blowing device or are pulled off from the round belt from the material-removing opening by an externally arranged pulling-off device.
As shown in fig. 4, the material-shifting mechanism 300 includes a material-shifting mounting plate 301 disposed at a discharging end of the circumferential rotation detecting mechanism, a material-shifting motor 302 disposed on the material-shifting mounting plate, a material-shifting rotating wheel 303 disposed on an output shaft of the material-shifting motor, and a plurality of material-shifting arms 304 disposed on the material-shifting rotating wheel, wherein the material-shifting arms are in an arc hook shape corresponding to the shape of the core block, and the material-shifting arms laterally shift out the core block from the circumferential rotation detecting mechanism to the end surface detecting mechanism at an end position of the material-picking discharging chute plate, and accordingly, a notch facilitating movement of the material-shifting arms is formed at an end of the material-picking discharging chute plate.
The end face detection mechanism 400 comprises an end face detection rolling groove 401 which is in butt joint with the material shifting mechanism and used for receiving nuclear fuel pellets shifted out by the material shifting arm, a front end detection port 402, a rear end detection port 403 and an inspection port 404 which are arranged on two sides of the end face detection rolling groove and distributed along the trend of the end face detection rolling groove, a front end face array camera 405 and a front end face array light source 406 which are arranged corresponding to the front end detection port, and a rear end face array camera 407 and a rear end face array light source 408 which are arranged corresponding to the rear end detection port, wherein the other end of the end face detection rolling groove is in butt joint with the blanking pre-arranging mechanism. When nuclear fuel pellets roll along the end face detection rolling groove, two ends of the pellets are exposed through the front end detection port and the rear end detection port respectively, the corresponding front end face array camera and the rear end face array camera can correspondingly acquire images at two ends of the pellets for defect detection, the corresponding pellets are removed by an external device in a blowing or shifting mode when the defective pellets pass through the waste removal port, and the pellets which are not detected to have apparent defects enter the blanking pre-arranging mechanism from the tail end of the end face detection rolling groove.
As shown in fig. 5, the discharging pre-arranging mechanism 500 includes a pre-arranging feeding groove plate 501 abutting against the end face detecting mechanism, a pair of pre-arranging driven wheels 502 disposed side by side through a shaft seat and corresponding to the pre-arranging feeding groove plate, a pre-arranging driving wheel 503 and a pre-arranging tension wheel 504 disposed on a longitudinal surface with respect to the pre-arranging driven wheels, a pre-arranging double-row circular belt 505 wound on the pre-arranging driven wheels, the pre-arranging driving wheel, and the pre-arranging tension wheel, a pre-arranging motor 506 for driving the pre-arranging driving wheel, a pre-arranging support plate 507 disposed between the pair of pre-arranging driven shafts for supporting the pre-arranging double-row circular belt, pre-arranging blocking edges 508 disposed on the pre-arranging support plate and located at both sides of the advancing direction of the pre-arranging double-row circular belt, and a pre-arranging fixing clamping jaw 509 disposed.
As shown in fig. 6, the discharging mechanism 600 includes a fixed discharging bottom frame 601, a discharging feeding trough plate 602 disposed on the discharging bottom frame and abutting against the discharging pre-arranging mechanism, a discharging linear shaft 603 disposed on the discharging bottom frame and moving along the discharging direction, a discharging moving block disposed on the discharging linear shaft, a discharging motor 604 disposed on the discharging linear shaft and used for driving the discharging moving block, a discharging tray 605 disposed on the discharging bottom frame and fixedly connected to the discharging moving block, and a discharging pushing mechanism 610 disposed above the discharging bottom frame through a bracket and corresponding to the discharging feeding trough plate, wherein a row of slots on the discharging tray corresponds to the discharging feeding trough plate. Specifically, the blanking pushing mechanism 610 includes a lower pushing linear shaft 611 disposed transversely above the blanking bottom frame, a blanking moving plate 612 sleeved on the lower pushing linear shaft, a lower pushing motor 613 disposed on the lower pushing linear shaft for driving the blanking moving plate to move, and a blanking clamping jaw 614 disposed on the blanking moving plate and corresponding to the blanking feeding trough plate. In the blanking mechanism, a blanking bottom frame, a blanking linear shaft, a blanking moving block, a blanking motor, a blanking disc, a lower blanking linear shaft, a blanking moving plate, a lower blanking motor and a matched structure (such as a table board and a linear guide rail) adopt the same arrangement and structure as those in the feeding pushing mechanism 100, and the difference is that the feeding direction in the feeding pushing mechanism is from front to back along the feeding bottom frame, and the blanking direction in the blanking mechanism is from back to front along the blanking bottom frame.
The working process of the invention is as follows:
firstly, the whole tray of the core blocks to be detected is put into a feeding tray of a feeding pushing mechanism (or the whole tray of the core blocks with the feeding tray is put on a table top), a feeding motor drives the feeding tray to move, so that the long V-shaped grooves are in butt joint with a feeding discharging groove plate row by row, and a feeding push rod pushes the whole row of core blocks to a long rotor of a circumferential surface rotation detection mechanism. The long rotor rotates to drive the core blocks on the long rotor to rotate around the axial direction of the long rotor, the linear array camera reciprocates above the long rotor to completely detect the peripheral surfaces of the core blocks, the core blocks which are subsequently entered can push the core blocks which are detected by the peripheral surfaces to a material picking transmission line mechanism, the core blocks are sequentially picked to an end surface detection rolling groove by a material picking rotating wheel and a material picking arm after the peripheral surfaces are detected, the core blocks which are detected and rejected by the end surface detection enter a blanking pre-arranging mechanism to be pre-arranged, finally the blanking clamping jaws on the blanking mechanism push the pre-arranged whole core blocks into a long V-shaped groove on a blanking disc, and the blanking disc moves row by row to finally complete the blanking arrangement of the whole disc.
The above-mentioned embodiments are only preferred embodiments of the present invention, and do not limit the scope of the present invention, but all the modifications made by the principles of the present invention and the non-inventive efforts based on the above-mentioned embodiments shall fall within the scope of the present invention.
Claims (10)
1. The off-line nuclear fuel pellet appearance surface defect inspection system is characterized by comprising a feeding pushing mechanism (100) for feeding a whole tray and conveying the pellets row by row, a peripheral surface rotation detection mechanism (200) in butt joint with the feeding pushing mechanism, a shifting mechanism (300) for transversely shifting the pellets in butt joint with the peripheral surface rotation detection mechanism, an end surface detection mechanism (400) in butt joint with the shifting mechanism, a discharging pre-arrangement mechanism (500) in butt joint with the end surface detection mechanism, and a discharging mechanism (600) which is in butt joint with the discharging pre-arrangement mechanism and arranges the pellets into a tray.
2. The off-line nuclear fuel pellet appearance surface defect inspection system according to claim 1, wherein the feeding pushing mechanism (100) comprises a fixedly arranged feeding bottom frame (101), a feeding discharging groove plate (102) which is arranged on the feeding bottom frame and is butted with the circumferential surface rotation detection mechanism, a feeding linear shaft (103) which is arranged on the feeding bottom frame and runs along the feeding direction, a feeding moving block which is arranged on the feeding linear shaft, a feeding motor (104) which is arranged on the feeding linear shaft and is used for driving the feeding moving block, a feeding tray (105) which is arranged on the feeding bottom frame and is fixedly connected with the feeding moving block, and a feeding pushing mechanism (110) which is arranged above the feeding bottom frame through a support and corresponds to the feeding discharging groove plate, wherein a row of grooves on the feeding tray corresponds to the feeding discharging groove plate.
3. The off-line nuclear fuel pellet appearance surface defect inspection system according to claim 2, wherein the feeding and pushing mechanism (110) comprises an upper pushing linear shaft (111) transversely arranged above the feeding underframe, a pushing moving plate (112) sleeved on the upper pushing linear shaft, an upper pushing motor (113) arranged on the upper pushing linear shaft and used for driving the pushing moving plate to move, a pushing avoiding cylinder (114) arranged on the pushing moving plate and capable of lifting and moving, and a feeding push rod (115) arranged at the lower part of the movable end of the pushing avoiding cylinder and corresponding to the feeding discharging chute plate.
4. The off-line nuclear fuel pellet appearance surface defect inspection system according to claim 1, wherein the peripheral surface rotation detection mechanism (200) comprises a rotation bracket (201) abutting against the feeding pushing mechanism and having a detection discharging slot plate, a pair of long rotors (202) arranged on the rotation bracket along the feeding direction and driving the pellets to rotate, a rotation transmission assembly (203) and a rotation motor (204) arranged on the rotation bracket and driving the long rotors to rotate, a detection linear shaft (205) arranged above the long rotors through a support, a detection moving frame (206) sleeved on the detection linear shaft, a detection motor (207) arranged on the detection linear shaft and driving the detection moving frame to move, a linear array camera (208) and a linear array light source (209) arranged on the detection moving frame and corresponding to the long rotors, and a material picking and conveying line mechanism (210) abutting against the detection discharging slot plate at one end and abutting against the material picking mechanism at the other end .
5. The off-line inspection system for the appearance surface defects of nuclear fuel pellets according to claim 4, wherein the material picking and conveying mechanism (210) comprises a pair of material picking driven wheels (211) which are arranged side by side through a shaft seat and correspond to the detection discharge slot plate, a material picking driving wheel (212) and a material picking tension wheel (213) which are arranged on the longitudinal surface relative to the material picking driven wheels, a double-row material picking belt (214) wound on the material picking driven wheels, the material picking driving wheel and the material picking tension wheel, a material picking motor (215) for driving the material picking driving wheel, a material picking support plate (216) arranged between the pair of material picking driven shafts and used for supporting the double-row material picking belt, material picking retaining edges (217) arranged on the material picking support plate and positioned on two sides of the advancing direction of the double-row material picking belt, and material picking retaining edges (218) arranged on the material picking retaining edges, wherein the material picking driven wheels are provided with material picking discharge slot plates (219) which are butted with the material picking discharge slot plate relative to the other end of the detection discharge slot plate ).
6. The off-line nuclear fuel pellet appearance surface defect inspection system of claim 1, wherein the material stirring mechanism (300) comprises a material stirring mounting plate (301) arranged at the discharging end of the circumferential surface rotation detection mechanism, a material stirring motor (302) arranged on the material stirring mounting plate, a material stirring rotating wheel (303) arranged on the output shaft of the material stirring motor, and a plurality of material stirring arms (304) arranged on the material stirring rotating wheel, wherein the material stirring arms are used for transversely stirring out the pellets from the circumferential surface rotation detection mechanism.
7. The off-line nuclear fuel pellet appearance surface defect inspection system according to claim 1, wherein the end face detection mechanism (400) comprises an end face detection rolling groove (401) butted with the material stirring mechanism, a front end detection port (402), a rear end detection port (403) and a waste removal port (404) which are arranged on two sides of the end face detection rolling groove and arranged along the direction of the end face detection rolling groove, a front end face matrix camera (405) and a front end face matrix light source (406) which are arranged corresponding to the front end detection port, and a rear end face matrix camera (407) and a rear end face matrix light source (408) which are arranged corresponding to the rear end detection port, wherein the other end of the end face detection rolling groove is butted with the blanking prearrangement mechanism.
8. The off-line nuclear fuel pellet appearance surface defect inspection system of claim 1, the blanking pre-arranging mechanism (500) comprises a pre-arranging feeding groove plate (501) butted with the end face detection mechanism, a pair of pre-arranging driven wheels (502) which are arranged side by side through a shaft seat and correspond to the pre-arranging feeding groove plate, a pre-arranging driving wheel (503) and a pre-arranging tension wheel (504) which are arranged on the longitudinal surface corresponding to the pre-arranging driven wheels, and a pre-arranging double-row circular belt (505) wound on the pre-arranging driven wheels, the pre-arranging driving wheel and the pre-arranging tension wheel, a pre-arranging motor (506) for driving the pre-arranging driving wheel, a pre-arranging support plate (507) arranged between the pair of pre-arranging driven shafts and used for supporting the pre-arranging double-row circular belt, pre-arranging baffle edges (508) arranged on the pre-arranging support plate and positioned at two sides of the advancing direction of the pre-arranging double-row circular belt, and a pre-arranged fixed clamping jaw (509) arranged above the discharging end of the pre-arranged double-row circular belt through a bracket.
9. The off-line nuclear fuel pellet appearance surface defect inspection system according to claim 1, wherein the blanking mechanism (600) comprises a fixedly arranged blanking bottom frame (601), a blanking feeding trough plate (602) arranged on the blanking bottom frame and butted with the blanking pre-arranging mechanism, a blanking linear shaft (603) arranged on the blanking bottom frame and moving along a blanking direction, a blanking moving block arranged on the blanking linear shaft, a blanking motor (604) arranged on the blanking linear shaft and used for driving the blanking moving block, a blanking disc (605) arranged on the blanking bottom frame and fixedly connected with the blanking moving block, and a blanking pushing mechanism (610) arranged above the blanking bottom frame through a support and corresponding to the blanking feeding trough plate, wherein a row of grooves on the blanking disc correspond to the blanking feeding trough plate.
10. The off-line nuclear fuel pellet appearance surface defect inspection system of claim 9, wherein the blanking pushing mechanism (610) comprises a lower blanking linear shaft (611) transversely arranged above the blanking bottom frame, a blanking moving plate (612) sleeved on the lower blanking linear shaft, a lower blanking motor (613) arranged on the lower blanking linear shaft and used for driving the blanking moving plate to move, and a blanking clamping jaw (614) arranged on the blanking moving plate and corresponding to the blanking feeding trough plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910832373.8A CN110712982A (en) | 2019-09-04 | 2019-09-04 | Off-line nuclear fuel pellet appearance surface defect inspection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910832373.8A CN110712982A (en) | 2019-09-04 | 2019-09-04 | Off-line nuclear fuel pellet appearance surface defect inspection system |
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| Publication Number | Publication Date |
|---|---|
| CN110712982A true CN110712982A (en) | 2020-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910832373.8A Pending CN110712982A (en) | 2019-09-04 | 2019-09-04 | Off-line nuclear fuel pellet appearance surface defect inspection system |
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| CN (1) | CN110712982A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380033A (en) * | 2021-12-13 | 2022-04-22 | 中国核电工程有限公司 | Automatic core block length arranging device and fuel rod production system |
-
2019
- 2019-09-04 CN CN201910832373.8A patent/CN110712982A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380033A (en) * | 2021-12-13 | 2022-04-22 | 中国核电工程有限公司 | Automatic core block length arranging device and fuel rod production system |
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