CN117066139B - Device and method for efficiently detecting concentricity of microchannel plate - Google Patents
Device and method for efficiently detecting concentricity of microchannel plate Download PDFInfo
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- CN117066139B CN117066139B CN202311345206.3A CN202311345206A CN117066139B CN 117066139 B CN117066139 B CN 117066139B CN 202311345206 A CN202311345206 A CN 202311345206A CN 117066139 B CN117066139 B CN 117066139B
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 claims description 52
- 230000008569 process Effects 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 22
- 230000002950 deficient Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 239000011265 semifinished product Substances 0.000 description 6
- 238000004904 shortening Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
- G01B21/24—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes for testing alignment of axes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/04—Sorting according to size
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
- B07C5/362—Separating or distributor mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C2301/00—Sorting according to destination
- B07C2301/0008—Electronic Devices, e.g. keyboard, displays
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a device and a method for efficiently detecting concentricity of a microchannel plate, which relate to the technical field of detecting concentricity of the microchannel plate and comprise a long slat fixedly arranged in a workbench, wherein a bar-shaped groove arranged along the length direction of the long slat is formed in the long slat, a through hole penetrating through the bottom surface of the long slat is formed in the left end part of the bar-shaped groove, and a rotating and jacking mechanism positioned right below the through hole is arranged on the long slat; the rotating and jacking mechanism comprises a lifting air cylinder fixedly arranged on the bottom surface of the strip plate and a lifting plate fixedly arranged on the acting end of a piston rod of the lifting air cylinder, a hollow pipe penetrating through the lifting air cylinder is rotatably arranged in the lifting plate, and a rotary joint is connected to the bottom end opening of the hollow pipe; the workbench is also provided with a portal frame positioned right above the strip plate, and a detection unit and a feeding mechanism are sequentially arranged below the portal frame beam from left to right. The beneficial effects of the invention are as follows: the concentricity detection time of the micro-channel plate is shortened, the detection efficiency of the micro-channel plate is greatly improved, and the automation degree is high.
Description
Technical Field
The invention relates to the technical field of detecting concentricity of a microchannel plate, in particular to a device and a method for efficiently detecting concentricity of the microchannel plate.
Background
The ICMOS camera is an enhanced camera which directly couples the CMOS image sensor with the image enhancer by means of an optical fiber light cone, and the serial products have the characteristics of compact structure, small volume, low power consumption, low distortion and the like, can realize low-illumination, high-resolution, wide-dynamic and large-area image output, and can support product customization according to different application scenes. The ICMOS camera takes an image intensifier as a core, and realizes the gain of weak light signals by controlling the light-electricity-light-electricity conversion through pulse high voltage.
The core component of the image intensifier is a micro-channel plate, the structure of the micro-channel plate is shown in fig. 1-2, the micro-channel plate 1 comprises a cylindrical body and a counter bore 2 formed on the top surface of the cylindrical body, and a plurality of micro-channels are formed on the bottom surface of the counter bore 2. After the micro-channel plate 1 is produced and molded, the concentricity of the micro-channel plate 1 is required to be detected in the process, namely, the roundness of the cylindrical body and the roundness of the counter bore 2 are detected, and if the roundness of the cylindrical body and the roundness of the counter bore 2 are detected to meet the requirement, the concentricity of the micro-channel plate 1 meets the requirement, and a worker puts qualified products into a finished product charging basket; if the roundness of the cylindrical body and the counter bore 2 is detected to be unsatisfactory, the concentricity of the micro-channel plate 1 is proved to be unsatisfactory, and workers put unqualified products into the waste basket.
The method for detecting the concentricity of the microchannel plate 1 in the workshop comprises the following steps:
s1, taking out a micro-channel plate 1 to be detected by a worker, putting the micro-channel plate 1 on a rotary table horizontally, holding a displacement sensor by the worker, touching the detection head of the displacement sensor against the inner wall of a counter bore 2 of the micro-channel plate 1, cleaning the readings on the displacement sensor, rotating the rotary table, driving the micro-channel plate 1 to synchronously rotate around the axis of the rotary table, rotating the counter bore 2 of the micro-channel plate 1 relative to the detection head, and judging that the micro-channel plate 1 is a defective product by the worker if the readings on the displacement sensor change, and putting the defective product into a waste basket by the worker; if the reading on the displacement sensor is not changed after the microchannel plate 1 rotates for one circle, the roundness of the counter bore 2 is proved to be in accordance with the requirement, and a worker judges that the microchannel plate 1 is a semi-product;
s2, detecting the roundness of the cylindrical body of the semi-finished product by workers by adopting the same method, rotating the cylindrical body of the semi-finished product relative to the detection head, and if the reading on the displacement sensor changes in the rotating process, indicating that the roundness of the cylindrical body does not meet the requirement, judging that the semi-finished product is unqualified by the workers, and removing the unqualified product; if the reading on the displacement sensor is not changed after the semi-finished product rotates for one circle, the roundness of the cylindrical body of the semi-finished product is proved to be in accordance with the requirement, and a worker judges that the semi-finished product is a qualified product, so that the concentricity of one micro-channel plate 1 is finally detected;
s3, repeating the operations of the steps S1-S2, so that concentricity of the micro-channel plates 1 can be continuously detected.
However, although the method in the shop can detect concentricity of the microchannel plate, in actual operation, the following technical drawbacks still exist:
I. the concentricity of the micro-channel plate can be detected only by adopting the displacement sensor to detect the roundness of the counter bore 2 and the cylindrical body of the micro-channel plate 1 respectively, which clearly increases the detection procedure, increases the detection time of the concentricity of the micro-channel plate and further reduces the detection efficiency of the micro-channel plate.
II. The workers are required to put the micro-channel plates to be detected on the turntable one by one, which clearly increases the detection time of concentricity of the subsequent micro-channel plates, and further greatly reduces the detection efficiency of the micro-channel plates. Therefore, there is a need for a device and method for shortening the concentricity detection time of a microchannel plate and greatly improving the detection efficiency of the microchannel plate.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a device and a method for efficiently detecting the concentricity of a micro-channel plate, which are used for shortening the detection time of the concentricity of the micro-channel plate, greatly improving the detection efficiency of the micro-channel plate and realizing high automation degree.
The aim of the invention is achieved by the following technical scheme: the device for efficiently detecting the concentricity of the microchannel plate comprises a long slat fixedly arranged in a workbench, wherein a bar-shaped groove arranged along the length direction of the long slat is formed in the long slat, a through hole penetrating through the bottom surface of the long slat is formed in the left end part of the bar-shaped groove, and a rotating and jacking mechanism positioned right below the through hole is arranged on the long slat;
the rotating and jacking mechanism comprises a lifting cylinder fixedly arranged on the bottom surface of the strip plate and a lifting plate fixedly arranged on the acting end of a piston rod of the lifting cylinder, a hollow pipe penetrating through the lifting plate is rotatably arranged in the lifting plate, a bottom end opening of the hollow pipe is connected with a rotary joint, the bottom end opening of the rotary joint is connected with a working port of a vacuum pump through a hose, a sucker extending into the through hole is fixedly arranged at the top end opening of the hollow pipe, the top surface of the sucker is level with the bottom of the strip groove, vacuum holes distributed in a circumference manner are formed in the outer edge of the top surface of the sucker, each vacuum hole is communicated with an inner cavity of the sucker, and a driving mechanism for driving the hollow pipe to rotate is arranged on the lifting plate;
the workbench is also provided with a portal frame positioned right above the long strip plate, a detection unit and a feeding mechanism are sequentially arranged below the portal frame beam from left to right, the detection unit comprises a feeding cylinder fixedly arranged on the bottom surface of the beam, an L plate is fixedly arranged at the acting end of a piston rod of the feeding cylinder, a first displacement sensor and a second displacement sensor are fixedly arranged on the bottom surface of the L plate horizontal plate, connecting plates are fixedly arranged on detection heads of the first displacement sensor and the second displacement sensor, and rollers are rotatably arranged on the bottom surfaces of the two connecting plates through rotating shafts;
the feeding mechanism is arranged on the right side of the detection unit and comprises a screw-nut pair arranged on the cross beam, a push plate is fixedly arranged on the bottom surface of a nut of the screw-nut pair, and the lower end part of the push plate extends into the strip-shaped groove.
The longitudinal width of the strip-shaped groove is larger than the diameter of the micro-channel plate, and the diameter of the through hole is larger than the diameter of the micro-channel plate.
The workbench is internally provided with a through groove, and the long strip plate is welded in the through groove.
The bottom surface of the workbench is fixedly provided with a plurality of supporting legs which are supported on the ground.
The driving mechanism comprises a motor fixedly arranged on the bottom surface of the lifting plate, a driving gear fixedly arranged on an output shaft of the motor, and a driven gear fixedly arranged on the outer side wall of the hollow tube, wherein the driven gear is meshed with the driving gear.
The rotation and jacking mechanism comprises two lifting cylinders which are respectively fixedly arranged at the left side and the right side of the through hole.
The bearing seat is fixedly arranged on the bottom surface of the lifting plate, and the hollow tube is rotatably arranged in the bearing seat.
The device also comprises a controller, wherein the controller is electrically connected with the motor, the first displacement sensor, the second displacement sensor, the lifting cylinder, the feeding cylinder and the vacuum pump through signal wires.
A method for efficiently detecting concentricity of a microchannel plate comprises the following steps:
s1, a worker sequentially places a plurality of micro-channel plates to be detected in a strip-shaped groove and between a through hole and a push plate;
s2, feeding of a microchannel plate: the servo motor of the screw-nut pair is controlled to rotate positively, the nut moves leftwards, the nut drives the push plate to synchronously move leftwards, the push plate pushes the microchannel plate in the strip-shaped groove to move leftwards, and when the push plate moves leftwards for a certain distance, the leftmost microchannel plate in the strip-shaped groove moves to the top surface of the sucker, so that the feeding of the microchannel plate is realized;
s3, detecting concentricity of the first microchannel plate, wherein the specific operation steps are as follows:
s31, starting a vacuum pump of the rotation and jacking mechanism, wherein the vacuum pump vacuumizes the inner cavity of the hollow pipe, the inner cavity of the sucker and the vacuum hole, and a micro-channel plate positioned on the top surface of the sucker is adsorbed on the sucker under negative pressure;
s32, a piston rod of a lifting cylinder of the control rotation and jacking mechanism is retracted upwards, the piston rod drives a lifting plate to move upwards, the lifting plate drives a motor and a hollow tube to move upwards, the hollow tube drives a sucker to move upwards, the sucker drives a microchannel plate to move upwards, when the piston rod of the lifting cylinder is retracted completely, the bottom surface of a roller positioned on the right side is contacted with the bottom of a counter bore of the microchannel plate, and the roller positioned on the left side is opposite to the microchannel plate in left and right sides;
s33, controlling a piston rod of a feeding cylinder of the detection unit to extend rightwards, enabling the piston rod to drive the L plate to extend rightwards, enabling the L plate to drive the first displacement sensor and the second displacement sensor to synchronously move rightwards, further driving the corresponding roller to do rectilinear motion rightwards, enabling the roller on the left side to contact with a cylindrical body of the microchannel plate after the piston rod of the feeding cylinder extends completely, and enabling the roller on the right side to contact with the inner wall of a counter bore of the microchannel plate;
s34, controlling a motor to start, wherein an output shaft of the motor drives a driving gear to rotate, the driving gear drives a driven gear to rotate, the driven gear drives a hollow pipe to rotate, the hollow pipe drives a sucker to rotate, the sucker drives a micro-channel plate adsorbed on the hollow pipe to synchronously rotate, in the rotating process, if a first displacement sensor or a second displacement sensor sends a displacement signal to a controller, the roundness of a cylindrical body or a counter bore of the micro-channel plate is not met, and further, the concentricity of the micro-channel plate is not met, the micro-channel plate is a defective product, at the moment, the controller controls the motor to be closed, and controls a vacuum pump to be closed, the defective product is not adsorbed on the sucker any more, then a piston rod of a lifting cylinder is controlled to extend downwards, the piston rod drives the lifting plate to downwards move synchronously, the hollow pipe and the sucker drive the defective product to downwards synchronously move, and when the sucker moves to a long place, a worker takes the defective product from the sucker;
if the microchannel plate rotates 180 degrees, the first displacement sensor and the second displacement sensor do not send displacement signals to the controller, the fact that the roundness of the cylindrical body and the roundness of the counter bore of the microchannel plate meet the requirements is indicated, the fact that the concentricity of the microchannel plate meets the requirements is further indicated, the microchannel plate is a qualified product, at the moment, the controller controls the motor to be closed, controls the vacuum pump to be closed, then controls the piston rod of the lifting cylinder to extend downwards, and when the sucker moves to the long strip plate, a worker takes the qualified product away from the sucker, so that the concentricity of the first microchannel plate is finally detected;
s4, repeating the operations of the steps S2-S3 by workers, and detecting the concentricity of the microchannel plate continuously.
The invention has the following advantages: the invention shortens the concentricity detection time of the micro-channel plate, greatly improves the detection efficiency of the micro-channel plate and has high automation degree.
Drawings
FIG. 1 is a schematic structural diagram of a microchannel plate;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic diagram of the structure of the present invention;
FIG. 4 is a schematic diagram of the main section of FIG. 3;
FIG. 5 is a structural view of a long slat;
FIG. 6 is a schematic diagram of the main section of FIG. 5;
FIG. 7 is a schematic view of a rotation and lift mechanism;
FIG. 8 is a schematic view in the direction A of FIG. 7;
FIG. 9 is a schematic diagram of the structure of the detection unit;
FIG. 10 is a schematic view of a feed mechanism;
FIG. 11 is a schematic illustration of placing a plurality of microchannel plates to be tested in a bar slot;
FIG. 12 is a schematic diagram of microchannel plate loading;
FIG. 13 is a schematic view of a suction cup moving a microchannel plate upward;
FIG. 14 is a schematic view of the feed cylinder with the piston rod fully extended;
FIG. 15 is a schematic view of the suction cup driving reject synchronously moving downward;
in the figure, 1-microchannel plate, 2-counter bore, 3-workbench, 4-long slat, 5-bar slot, 6-through hole, 7-rotation and lifting mechanism, 8-lifting cylinder, 9-lifting plate, 10-hollow tube, 11-rotary joint, 12-sucker, 13-vacuum hole, 14-portal frame, 15-detecting unit, 16-feeding mechanism, 17-feeding cylinder, 18-L plate, 19-first displacement sensor, 20-second displacement sensor, 21-connecting plate, 22-rotating shaft, 23-roller, 24-nut, 25-push plate, 26-motor, 27-driving gear and 29-unqualified product.
Description of the embodiments
The invention is further described below with reference to the accompanying drawings, the scope of the invention not being limited to the following:
as shown in fig. 3-10, the device for efficiently detecting concentricity of a microchannel plate comprises a long slat 4 fixedly arranged in a workbench 3, a through groove is formed in the workbench 3, the long slat 4 is welded in the through groove, a plurality of supporting legs supported on the ground are fixedly arranged on the bottom surface of the workbench 3, a bar-shaped groove 5 arranged along the length direction of the long slat 4 is formed in the long slat 4, a through hole 6 penetrating through the bottom surface of the long slat 4 is formed in the left end part of the bar-shaped groove 5, and a rotation and jacking mechanism 7 positioned right below the through hole 6 is arranged on the long slat 4; the longitudinal width of the strip-shaped groove 5 is larger than the diameter of the micro-channel plate 1, and the diameter of the through hole 6 is larger than the diameter of the micro-channel plate 1.
The rotary lifting mechanism comprises a lifting cylinder 8 fixedly arranged on the bottom surface of a long strip plate 4, a lifting plate 9 fixedly arranged on the acting end of a piston rod of the lifting cylinder 8, a hollow pipe 10 penetrating through the lifting plate 9 is rotatably arranged on the lifting plate 9, a bearing seat is fixedly arranged on the bottom surface of the lifting plate 9, the hollow pipe 10 is rotatably arranged in the bearing seat, a rotary joint 11 is connected to the bottom port of the hollow pipe 10, the bottom port of the rotary joint 11 is connected with a working port of a vacuum pump through a hose, a sucking disc 12 stretching into the through hole 6 is fixedly arranged at the top port of the hollow pipe 10, the top surface of the sucking disc 12 is flush with the bottom of the strip groove 5, vacuum holes 13 distributed circumferentially are formed in the outer edge of the top surface of the sucking disc 12, each vacuum hole 13 is communicated with the inner cavity of the sucking disc 12, a driving mechanism for driving the hollow pipe 10 to rotate is arranged on the lifting plate 9, and comprises a motor 26 fixedly arranged on the bottom surface of the lifting plate 9, a driving gear 27 fixedly arranged on an output shaft of the motor 26, and a driven gear fixedly arranged on the outer side wall of the hollow pipe 10, and meshed with the driving gear 27. The rotation and jacking mechanism 7 comprises two lifting cylinders 8, and the two lifting cylinders 8 are respectively fixedly arranged on the left side and the right side of the through hole 6.
The workbench 3 is also provided with a portal frame 14 positioned right above the long strip plate 4, a detection unit 15 and a feeding mechanism 16 are sequentially arranged below a cross beam of the portal frame 14 from left to right, the detection unit 15 comprises a feeding cylinder 17 fixedly arranged on the bottom surface of the cross beam, an L plate 18 is fixedly arranged at the acting end of a piston rod of the feeding cylinder 17, a first displacement sensor 19 and a second displacement sensor 20 are fixedly arranged on the bottom surface of a horizontal plate of the L plate 18, connecting plates 21 are fixedly arranged on detection heads of the first displacement sensor 19 and the second displacement sensor 20, and rollers 23 are rotatably arranged on the bottom surfaces of the two connecting plates 21 through rotating shafts 22;
the feeding mechanism 16 is arranged on the right side of the detection unit 15, the feeding mechanism 16 comprises a screw-nut pair arranged on the cross beam, a push plate 25 is fixedly arranged on the bottom surface of a nut 24 of the screw-nut pair, and the lower end part of the push plate 25 extends into the strip-shaped groove 5.
The device also comprises a controller, wherein the controller is electrically connected with the motor 26, the first displacement sensor 19, the second displacement sensor 20, the lifting cylinder 8, the feeding cylinder 17 and the vacuum pump through signal wires, the controller can control the starting or closing of the motor 26 and the vacuum pump, and meanwhile, the controller can also control the extension or retraction of piston rods of the lifting cylinder 8 and the feeding cylinder 17, so that the device has the characteristic of high automation degree.
A method for efficiently detecting concentricity of a microchannel plate comprises the following steps:
s1, a worker sequentially places a plurality of micro-channel plates 1 to be detected in the strip-shaped groove 5 and between the through holes 6 and the push plates 25, as shown in FIG. 11;
s2, feeding of the microchannel plate 1: the servo motor of the screw-nut pair is controlled to rotate positively, the nut 24 moves leftwards, the nut 24 drives the push plate 25 to synchronously move leftwards, the push plate 25 pushes the microchannel plate 1 in the strip-shaped groove 5 to move leftwards, when the push plate 25 moves leftwards for a certain distance, the leftmost microchannel plate 1 in the strip-shaped groove 5 moves to the top surface of the sucker 12, so that feeding of the microchannel plate 1 is realized, as shown in fig. 12;
s3, detecting concentricity of the first microchannel plate 1, wherein the specific operation steps are as follows:
s31, starting a vacuum pump of the rotation and jacking mechanism 7, wherein the vacuum pump vacuumizes the inner cavity of the hollow pipe 10, the inner cavity of the sucker 12 and the vacuum holes 13, and under negative pressure, the microchannel plate 1 positioned on the top surface of the sucker 12 is adsorbed on the sucker 12;
s32, controlling a piston rod of a lifting cylinder 8 of the rotation and jacking mechanism 7 to retract upwards, driving a lifting plate 9 to move upwards by the piston rod, driving a motor 26 and a hollow tube 10 to move upwards by the lifting plate 9, driving a sucking disc 12 to move upwards by the hollow tube 10, and driving a micro-channel plate 1 to move upwards by the sucking disc 12, wherein when the piston rod of the lifting cylinder 8 is completely retracted, the bottom surface of a roller 23 positioned on the right side is contacted with the bottom of a hole of a counter bore 2 of the micro-channel plate 1, and simultaneously the roller 23 positioned on the left side is opposite to the micro-channel plate 1 in left and right directions;
s33, controlling a piston rod of a feeding cylinder 17 of a detection unit 15 to extend rightwards, driving an L plate 18 to extend rightwards by the piston rod, driving a first displacement sensor 19 and a second displacement sensor 20 to synchronously move rightwards by the L plate 18, and further driving a corresponding roller 23 to linearly move rightwards, wherein after the piston rod of the feeding cylinder 17 extends completely, as shown in FIG. 14, the roller 23 on the left side is contacted with a cylindrical body of the microchannel plate 1, and meanwhile, the roller 23 on the right side is contacted with the inner wall of a counter bore 2 of the microchannel plate 1;
s34, controlling the motor 26 to start, wherein an output shaft of the motor 26 drives the driving gear 27 to rotate, the driving gear 27 drives the driven gear to rotate, the driven gear drives the hollow tube 10 to rotate, the hollow tube 10 drives the suction cup 12 to rotate as shown by an arrow in FIG. 14, the suction cup 12 drives the micro-channel plate 1 adsorbed on the hollow tube 10 to synchronously rotate, in the rotating process, if the first displacement sensor 19 or the second displacement sensor 20 sends displacement signals to the controller, the fact that the roundness of the cylindrical body or the counter bore 2 of the micro-channel plate 1 does not meet the requirement is indicated, the fact that the concentricity of the micro-channel plate 1 does not meet the requirement is indicated, the micro-channel plate 1 is a defective product, at the moment, the controller controls the motor 26 to be closed, and controls the vacuum pump to be closed, the defective product is not adsorbed on the suction cup 12 any more, then controls a piston rod of the lifting cylinder 8 to downwards extend, the piston rod drives the lifting plate 9 to downwards move the hollow tube 10 and the suction cup 12 to synchronously downwards, and a worker takes the defective product 29 downwards synchronously as shown in FIG. 15 when the suction cup 12 moves to the long place 4, and the defective product 29 is removed from the suction cup 12;
if the micro-channel plate 1 rotates 180 degrees, the first displacement sensor 19 and the second displacement sensor 20 do not send displacement signals to the controller, the fact that the roundness of the cylindrical body of the micro-channel plate 1 and the roundness of the counter bore 2 meet the requirement is indicated, the fact that the concentricity of the micro-channel plate 1 meets the requirement is further indicated, the micro-channel plate 1 is qualified, at the moment, the controller controls the motor 26 to be closed, controls the vacuum pump to be closed, then controls the piston rod of the lifting cylinder 8 to extend downwards, and when the sucker 12 moves to the long plate 4, a worker takes the qualified product from the sucker 12, so that the concentricity of the first micro-channel plate 1 is finally detected;
s4, repeating the operations of the steps S2-S3 by workers, and detecting the concentricity of the microchannel plate 1 continuously.
In step S2, the device only needs to control the servo motor 26 of the screw-nut pair of the feeding mechanism 16 to start, and can drive the push plate 25 to move leftwards through the nut 24, so that the microchannel plate 1 in the strip groove 5 is fed onto the suction cup 12 to automatically feed the microchannel plate 1, therefore, compared with a detection method in a workshop, the device does not need to manually place the microchannel plates to be detected on a turntable one by one, thereby greatly shortening the detection time of concentricity of subsequent microchannel plates, and further greatly improving the detection efficiency of the microchannel plates.
In step S3, the device firstly lifts the microchannel plate 1 to the detection station of the detection unit 15 through the rotation and lifting mechanism 7, then extends the piston rod of the feeding cylinder 17 of the detection unit 15 rightward, so that the two rollers 23 are respectively contacted with the cylindrical surface of the cylindrical body of the microchannel plate 1 and the inner wall of the counterbore 2, and then rotates the microchannel plate 1 through the rotation and lifting mechanism 7, thereby simultaneously detecting the roundness of the cylindrical body and the counterbore 2, and completing the detection of the concentricity of the microchannel plate 1. Therefore, the roundness of the cylindrical body and the roundness of the counter bore 2 can be detected simultaneously, compared with a detection method in a workshop, the detection procedure is saved, the detection time of the concentricity of the microchannel plate 1 is greatly shortened, and the detection efficiency of the microchannel plate is greatly improved.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. The method for efficiently detecting the concentricity of the microchannel plate comprises a long slat (4) fixedly arranged in a workbench (3), wherein a bar-shaped groove (5) arranged along the length direction of the long slat (4) is formed in the long slat (4), a through hole (6) penetrating through the bottom surface of the long slat (4) is formed in the left end part of the bar-shaped groove (5), and a rotating and jacking mechanism (7) positioned right below the through hole (6) is arranged on the long slat (4);
the rotary and jacking mechanism comprises a lifting cylinder (8) fixedly arranged on the bottom surface of the long strip plate (4), a lifting plate (9) fixedly arranged on the acting end of a piston rod of the lifting cylinder (8), a hollow pipe (10) penetrating through the lifting plate (9) is rotatably arranged in the lifting plate (9), a rotary joint (11) is connected to the bottom end opening of the hollow pipe (10), the bottom end opening of the rotary joint (11) is connected with a working port of a vacuum pump through a hose, a sucker (12) extending into the through hole (6) is fixedly arranged at the top end opening of the hollow pipe (10), the top surface of the sucker (12) is flush with the bottom of the strip groove (5), vacuum holes (13) distributed circumferentially are formed in the outer edge of the top surface of the sucker (12), each vacuum hole (13) is communicated with the inner cavity of the sucker (12), and a driving mechanism for driving the hollow pipe (10) to rotate is arranged on the lifting plate (9).
The workbench (3) is also provided with a portal frame (14) positioned right above the long slat (4), a detection unit (15) and a feeding mechanism (16) are sequentially arranged below a cross beam of the portal frame (14) from left to right, the detection unit (15) comprises a feeding cylinder (17) fixedly arranged on the bottom surface of the cross beam, an acting end of a piston rod of the feeding cylinder (17) is fixedly provided with an L plate (18), the bottom surface of the L plate (18) horizontal plate is fixedly provided with a first displacement sensor (19) and a second displacement sensor (20), detection heads of the first displacement sensor (19) and the second displacement sensor (20) are fixedly provided with connecting plates (21), and the bottom surfaces of the two connecting plates (21) are rotatably provided with idler wheels (23) through rotating shafts (22);
the feeding mechanism (16) is arranged on the right side of the detection unit (15), the feeding mechanism (16) comprises a screw-nut pair arranged on the cross beam, a push plate (25) is fixedly arranged on the bottom surface of a nut (24) of the screw-nut pair, and the lower end part of the push plate (25) extends into the strip-shaped groove (5); the longitudinal width of the strip-shaped groove (5) is larger than the diameter of the micro-channel plate (1), and the diameter of the through hole (6) is larger than the diameter of the micro-channel plate (1); a through groove is formed in the workbench (3), and the long slat (4) is welded in the through groove; a plurality of supporting legs which are supported on the ground are fixedly arranged on the bottom surface of the workbench (3); the driving mechanism comprises a motor (26) fixedly arranged on the bottom surface of the lifting plate (9), a driving gear (27) fixedly arranged on the output shaft of the motor (26), and a driven gear fixedly arranged on the outer side wall of the hollow tube (10), wherein the driven gear is meshed with the driving gear (27); the rotation and jacking mechanism (7) comprises two lifting cylinders (8), and the two lifting cylinders (8) are respectively fixedly arranged at the left side and the right side of the through hole (6); a bearing seat is fixedly arranged on the bottom surface of the lifting plate (9), and the hollow tube (10) is rotatably arranged in the bearing seat; the device also comprises a controller, wherein the controller is electrically connected with the motor (26), the first displacement sensor (19), the second displacement sensor (20), the lifting cylinder (8), the feeding cylinder (17) and the vacuum pump through signal wires, and the device is characterized in that: it comprises the following steps:
s1, a plurality of micro-channel plates (1) to be detected are sequentially placed in a strip-shaped groove (5) by workers and between a through hole (6) and a push plate (25);
s2, feeding of a microchannel plate (1): the servo motor of the screw-nut pair is controlled to rotate positively, the nut (24) moves leftwards, the nut (24) drives the push plate (25) to synchronously move leftwards, the push plate (25) pushes the microchannel plate (1) in the strip-shaped groove (5) to move leftwards, and after the push plate (25) moves leftwards for a certain distance, the leftmost microchannel plate (1) in the strip-shaped groove (5) moves to the top surface of the sucker (12), so that feeding of the microchannel plate (1) is realized;
s3, detecting concentricity of the first microchannel plate (1), wherein the specific operation steps are as follows:
s31, starting a vacuum pump of the rotation and jacking mechanism (7), wherein the vacuum pump vacuumizes the inner cavity of the hollow pipe (10), the inner cavity of the sucker (12) and the vacuum hole (13), and under negative pressure, a micro-channel plate (1) positioned on the top surface of the sucker (12) is adsorbed on the sucker (12);
s32, controlling a piston rod of a lifting cylinder (8) of the rotation and jacking mechanism (7) to retract upwards, driving a lifting plate (9) to move upwards by the piston rod, driving a motor (26) and a hollow tube (10) to move upwards by the lifting plate (9), driving a sucker (12) to move upwards by the hollow tube (10), driving a microchannel plate (1) to move upwards by the sucker (12), and enabling the bottom surface of a roller (23) positioned on the right side to be in contact with the bottom of a hole of a counter bore (2) of the microchannel plate (1) after the piston rod of the lifting cylinder (8) is completely retracted, and enabling the roller (23) positioned on the left side to be opposite to the microchannel plate (1) in left-right direction;
s33, controlling a piston rod of a feeding cylinder (17) of a detection unit (15) to extend rightwards, driving an L plate (18) to extend rightwards by the piston rod, driving a first displacement sensor (19) and a second displacement sensor (20) to synchronously move rightwards by the L plate (18), and further driving a corresponding roller (23) to do rectilinear motion rightwards, wherein after the piston rod of the feeding cylinder (17) extends completely, the roller (23) on the left side is contacted with a cylindrical body of the microchannel plate (1), and meanwhile, the roller (23) on the right side is contacted with the inner wall of a counter bore (2) of the microchannel plate (1);
s34, controlling a motor (26) to start, wherein an output shaft of the motor (26) drives a driving gear (27) to rotate, the driving gear (27) drives a driven gear to rotate, the driven gear drives a hollow pipe (10) to rotate, the hollow pipe (10) drives a suction cup (12) to rotate, the suction cup (12) drives a micro-channel plate (1) adsorbed on the suction cup to synchronously rotate, in the rotating process, if a first displacement sensor (19) or a second displacement sensor (20) sends a displacement signal to a controller, the fact that the roundness of a cylindrical body or a counter bore (2) of the micro-channel plate (1) does not meet the requirement is described, further, the fact that the concentricity of the micro-channel plate (1) does not meet the requirement is described, at the moment, the controller controls the motor (26) to be closed, and controls a vacuum pump to be closed, the unqualified product is not adsorbed on the suction cup (12), then a piston rod of a lifting cylinder (8) is controlled to downwards extend, and the lifting plate (9) drives the hollow pipe (10) and the suction cup (12) to synchronously move downwards, and when the lifting plate (9) drives the hollow pipe (10) and the suction cup (12) to synchronously move downwards, and the suction cup (12) is moved downwards, and the qualified product (29) is moved downwards from the suction cup (12) to the position to the unqualified product is removed;
if the microchannel plate (1) rotates 180 degrees, the first displacement sensor (19) and the second displacement sensor (20) do not send displacement signals to the controller, the roundness of the cylindrical body and the roundness of the counter bore (2) of the microchannel plate (1) are required, the concentricity of the microchannel plate (1) is required, the microchannel plate (1) is qualified, at the moment, the controller controls the motor (26) to be closed, controls the vacuum pump to be closed, then controls the piston rod of the lifting cylinder (8) to extend downwards, and when the sucker (12) moves to the place of the long slat (4), a worker takes the qualified product away from the sucker (12), so that the concentricity of the first microchannel plate (1) is finally detected;
s4, repeating the operations of the steps S2-S3 by workers, and detecting the concentricity of the microchannel plate (1) continuously.
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| CN117066139A (en) | 2023-11-17 |
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