CN116559182B - Visual detection device for thermistor - Google Patents
Visual detection device for thermistor Download PDFInfo
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- CN116559182B CN116559182B CN202310831108.4A CN202310831108A CN116559182B CN 116559182 B CN116559182 B CN 116559182B CN 202310831108 A CN202310831108 A CN 202310831108A CN 116559182 B CN116559182 B CN 116559182B
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- 238000001514 detection method Methods 0.000 title claims abstract description 70
- 230000000007 visual effect Effects 0.000 title abstract description 7
- 230000007246 mechanism Effects 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims description 5
- 230000007306 turnover Effects 0.000 claims description 5
- 238000011179 visual inspection Methods 0.000 claims description 5
- 230000000452 restraining effect Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 abstract description 16
- 238000010586 diagram Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/007—Testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/13—Moving of cuvettes or solid samples to or from the investigating station
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Signal Processing (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Mechanical Engineering (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses a thermistor visual detection device, which adopts the scheme that a material guide mechanism is arranged between supporting frames and is connected with an inclined guide plate, and the lower end of the inclined guide plate is connected with a detection mechanism; the material guide mechanism adopts a linkage design, when in detection, the transfer air pipe is pulled by the first air cylinder, the transfer air pipe synchronously drives the suction nozzle piece to adsorb the thermistor strip, the L-shaped pulling piece is pushed by the U-shaped connecting frame in the moving process of the transfer air pipe, the push plate is pushed by the L-shaped pulling piece, and the push plate slides in the annular guide rail in the pushing process; loosening the thermistor strip when the suction nozzle piece is positioned above the inclined guide plate, and dropping the thermistor strip into the detection mechanism to finish material taking; simultaneously, the ring member pushes the push plate, the compressed supporting plate falls off in the pushing process of the push plate, the side sliding column drives the push plate, and the push plate drives the thermistor strip to dial forwards, so that feeding is completed; the material guide mechanism is used for rapidly taking materials from the thermistor strip and simultaneously rapidly feeding materials, so that the detection efficiency is improved.
Description
Technical Field
The invention relates to the technical field of resistance detection, in particular to a thermistor detection device.
Background
A thermistor is a sensor resistor whose resistance value changes with a change in temperature. The positive temperature coefficient thermistor and the negative temperature coefficient thermistor are classified according to the difference of temperature coefficients, the resistance value of the positive temperature coefficient thermistor increases with the increase of temperature, and the resistance value of the negative temperature coefficient thermistor decreases with the increase of temperature. After the production of the thermistor is finished, the appearance of the thermistor needs to be visually detected to ensure the quality, and in the prior art, the thermistor is mostly detected by naked eyes, the efficiency is low, and a certain subjective judgment exists to cause missed detection or over detection.
Chinese patent (CN 113899743 a) discloses a thermistor visual inspection device, which utilizes a CCD camera to perform omnibearing inspection on the appearance of the thermistor during the transportation process of the thermistor. However, the device adopts the ratchet wheel in the poking assembly to drive the thermistor to move along the horizontal direction, the rotation angle of the ratchet wheel is required to be matched with the interval between the standard thermistor strips, so that the detected thermistor strips are single, the condition that the distribution of the thermistor on the conveyor belt is asymmetric can occur in the actual production process, the ratchet wheel is poked at the standard interval, and the whole detection dislocation can be caused by the asymmetric thermistor strips, so that the detection error problem can be caused.
Disclosure of Invention
The invention aims at: aiming at the defects of the prior art, a thermistor visual detection device is provided.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a thermistor vision inspection device, comprising:
a support frame; the support frame bilateral symmetry sets up, all is provided with the installation connecting block on the inner wall of two support frames, has between two installation connecting blocks to be used for carrying thermistor strip guide mechanism.
One side of the material guide mechanism is connected with an inclined guide plate, and the lower end of the inclined guide plate is connected with a detection mechanism for collecting surface images of the thermistor strips.
On the basis of the above scheme, further, guide mechanism includes: the inner guide rails are arranged on two sides and are respectively connected with the mounting connecting blocks; the annular guide rail is arranged below the installation connecting block; the sideslip column is connected in the annular guide rail in a sliding way; a push plate arranged between the two sideslip columns; the push plate can slide in the annular inner cavity of the annular guide rail through sideslip columns at two sides; one side of the push plate is connected with a limit connecting piece, a ring piece is sleeved on the outer wall of the limit connecting piece, one side of the ring piece is connected with an L-shaped pulling piece, and one end of the L-shaped pulling piece is connected with a U-shaped connecting frame.
The cross section of the annular inner cavity of the annular guide rail is of a parallelogram structure, a spring is arranged in the inner cavity of the apex angle of the annular guide rail, which is close to the left lower side, a supporting plate is connected to the spring, when the push plate moves annularly in the annular guide rail, a sideslip column on the push plate extrudes the supporting plate when the push plate moves to the apex angle of the annular guide rail, and meanwhile the supporting plate extrudes the spring, so that the supporting plate can jack the sideslip column into a track above the annular guide rail, and the sideslip column drives the push plate to form a height difference motion.
The inner cavity of the U-shaped connecting frame is provided with an air transfer pipe, and one side of the air transfer pipe is symmetrically provided with suction nozzle pieces about the transverse central line of the air transfer pipe, and the suction nozzle pieces are used for adsorbing the thermistor strips; the upper end of the switching air pipe is connected with an air pipe, and one side of the switching air pipe, which is far away from the suction nozzle, is connected with a first air cylinder for driving the switching air pipe to horizontally move.
The first air cylinder drives the transfer air pipe to horizontally move, so that when the air pipe is ventilated, the suction nozzle piece on the transfer air pipe can rapidly take the adjacent thermistor strip, and the detection speed of the thermistor strip is greatly improved.
The using method of the device comprises the following steps: when the thermistor strip is detected, the transfer air pipe is pulled through the first air cylinder, then the transfer air pipe can synchronously drive the suction nozzle piece to adsorb the thermistor strip through the air pipe, and in the process that the transfer air pipe moves towards the thermistor strip, the L-shaped pulling piece can be pushed through the U-shaped connecting frame, then the L-shaped pulling piece pushes the push plate, then the push plate can slide in the track close to the lower side of the annular guide rail through the sideslip columns on two sides in the pushed process, then the suction nozzle piece pulls the thermistor strip when the first air cylinder pushes the suction nozzle piece, the suction nozzle piece drives the thermistor strip to loosen when the thermistor strip is positioned above the inclined guide plate, then the thermistor strip can drop into the detection mechanism through the inclined guide plate, meanwhile, the ring piece pushes the push plate, then the push plate and the compressed supporting plate in the pushing process are separated, the sideslip columns are pushed into the slide rail close to the upper side under the action of the spring, then the push plate drives the push plate to move the thermistor strip forwards, so that the thermistor strip can be conveniently and rapidly loaded, and the thermistor strip enters the detection mechanism to be detected.
Based on the above scheme, further, the detection mechanism includes: the device comprises a detection frame, a turnover mechanism, a first CCD camera for detecting the front surface of the thermistor strip and a second CCD camera for detecting the back surface of the thermistor strip;
a guide hole is formed in one side of the detection frame in the vertical direction, an arc-shaped rotating piece is arranged on one side of the detection frame, and a plurality of arc-shaped guide pieces are arranged on one side of the inner cambered surface of the arc-shaped rotating piece along the length direction of the inner cambered surface of the arc-shaped rotating piece; the arc guide piece and the arc rotating piece form an arc guide rail component, and a transmission belt is arranged at the end of the arc guide rail component;
the turnover mechanism is arranged on the detection frame and used for turning over the thermistor strip.
Specifically, the tilting mechanism includes: the pulling plate piece is arranged on the lower surface of the inner cavity of the detection frame; one side of the pulling plate piece is connected with a second air cylinder, and the second air cylinder is arranged on the side edge of the detection frame; the second cylinder drives the pulling plate to pull the thermistor strip into the guide hole for overturning.
Specifically, the detection frame is of a U-shaped structure with an opening facing to the side, a first CCD camera is mounted on the upper surface of an inner cavity of the detection frame, the first CCD camera is opposite to the lower surface of the inner cavity of the detection frame, a second CCD camera is arranged on the lower surface of the detection frame, and the second CCD camera is opposite to a belt on the conveying belt.
After the thermistor strip enters the detection mechanism, the front face of the thermistor strip is detected through the first CCD camera, then the pull plate piece is driven by the second air cylinder to push the thermistor strip into the guide hole, the overturning of the thermistor strip in the arc-shaped guide rail component is completed, the overturned thermistor strip enters the transmission belt, and therefore the second CCD camera can rapidly detect the back face of the thermistor strip, and therefore the front face and the back face of the thermistor strip can be rapidly detected.
On the basis of the scheme, further, one side of the conveying belt is provided with the side baffle, the side baffle is of an L-shaped structure, the horizontal direction of the side baffle is provided with the strip-shaped through hole, and the strip-shaped through hole is matched with the belt. The thermistor strips falling onto the conveying belt can be restrained on the belt through the strip-shaped through holes to carry out linear conveying through the side baffles.
Compared with the prior art, the invention has the beneficial effects that:
the method comprises the following steps: according to the invention, the pushing plate is pushed by the ring piece, the supporting plate compressed in the pushing process of the pushing plate falls off, so that the supporting plate pushes the sideslip column into the slide rail close to the upper side of the annular guide rail under the action of the spring, then the sideslip column drives the pushing plate, and then the pushing plate toggles the thermistor strip forwards, so that the material guide mechanism can quickly take materials from the thermistor strip and simultaneously can quickly feed materials, and the visual detection efficiency of the thermistor is higher.
And two,: according to the invention, the first air cylinder drives the transfer air pipe to horizontally move, so that the suction nozzle piece on the transfer air pipe can rapidly take the thermistor strip, and the detection speed of the thermistor strip is greatly improved.
And thirdly,: according to the invention, the arc guide rail part is formed by the arc guide piece and the arc rotating piece, so that the thermistor strip can be quickly turned over, and the other surface of the thermistor strip after being subjected to thermal turning over can be conveniently detected.
Fourth, it is: according to the invention, the thermistor strip is conveniently fed through the material guide mechanism, the front surface of the thermistor strip is detected through the first CCD camera when the thermistor strip enters the detection mechanism, then the thermistor strip is overturned through the arc-shaped guide piece and the arc-shaped rotating piece, and then the lower surface of the thermistor strip is detected through the second CCD camera, so that the thermistor strip can be detected through the detection mechanism in a self-adaptive manner, and the problem of detection dislocation is avoided.
Drawings
FIG. 1 is a schematic diagram of the whole structure of a visual detection device for a thermistor;
FIG. 2 is a block diagram of the guide mechanism of the present invention;
FIG. 3 is a block diagram of the transfer tube and detection mechanism of the present invention;
FIG. 4 is an enlarged schematic view of the structure of FIG. 1A according to the present invention;
FIG. 5 is a block diagram of the detection mechanism of the present invention;
FIG. 6 is a side view of the present invention;
FIG. 7 is a block diagram of a conveyor belt and arcuate rotating member of the present invention;
FIG. 8 is a partial cross-sectional view of a test rack of the present invention;
fig. 9 is a structural view of the circular guide rail of the present invention.
In the figure: 1. a support frame; 2. installing a connecting block; 3. a thermistor strip; 4. a material guiding mechanism; 401. an L-shaped pull member; 402. a push plate; 403. an inner rail; 404. an annular guide rail; 405. a ring member; 406. a limit connecting piece; 407. a U-shaped connecting frame; 408. an air pipe is connected in a switching way; 409. a suction nozzle member; 4010. a sideslip column; 5. a first cylinder; 6. an air pipe; 7. an inclined guide plate; 8. a detection mechanism; 801. a detection frame; 802. an arc guide; 803. an arc-shaped rotating piece; 804. a first CCD camera; 805. a second CCD camera; 806. a guide hole; 9. a transmission belt; 10. a second cylinder; 11. pulling the plate; 12. side baffles; 13. a supporting plate; 14. and (3) a spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment 1, referring to fig. 1, a thermistor visual inspection device includes:
a support frame 1; the support frames 1 are arranged in bilateral symmetry, the inner walls of the two support frames 1 are respectively provided with an installation connecting block 2, and a material guide mechanism 4 for conveying the thermistor strips 3 is arranged between the two installation connecting blocks 2.
One side of the material guiding mechanism 4 is connected with an inclined guide plate 7, and the lower end of the inclined guide plate 7 is connected with a detection mechanism 8 for collecting the surface images of the thermistor strips 3.
Referring to fig. 2, the guide mechanism 4 includes: an inner rail 403 provided at both sides and connected to the mounting connection block 2, respectively; an annular guide 404 provided below the mounting connection block 2; a side slip column 4010 slidably coupled within the annular rail 404; a push plate 402 disposed between the two side-slip columns 4010; the push plate 402 can slide in the annular inner cavity of the annular guide rail 404 through side sliding columns 4010 on two sides; one side of the push plate 402 is connected with a limit connecting piece 406, a ring piece 405 is sleeved on the outer wall of the limit connecting piece 406, one side of the ring piece 405 is connected with an L-shaped pulling piece 401, and one end of the L-shaped pulling piece 401 is connected with a U-shaped connecting frame 407.
Referring to fig. 9, the cross section of the annular inner cavity of the annular guide rail 404 is in a parallelogram structure, a spring 14 is arranged in the inner cavity of the apex angle of the annular guide rail 404 near the lower left, a supporting plate 13 is connected to the spring 14, when the push plate 402 moves in an annular manner in the annular guide rail 404, when the push plate 402 moves to the apex angle of the annular guide rail 404 near the lower left, a sideslip post 4010 on the push plate 402 extrudes the supporting plate 13, and meanwhile, the supporting plate 13 extrudes the spring 14, so that the supporting plate 13 can jack the sideslip post 4010 into a track above the annular guide rail 404, and the sideslip post 4010 drives the push plate 402 to form a height difference motion.
Referring to fig. 3, an inner cavity of the u-shaped connection frame 407 is provided with an adapting air pipe 408, and one side of the adapting air pipe 408 is symmetrically provided with a suction nozzle piece 409 about a transverse center line thereof, the suction nozzle piece 409 being used for sucking the thermistor strip 3; the upper end of the transfer air pipe 408 is connected with an air pipe 6, and a first air cylinder 5 for driving the transfer air pipe 408 to move horizontally is connected to one side of the transfer air pipe 408 away from the suction nozzle piece 409, in this example, the first air cylinder 5 is mounted on the side wall of the inner guide rail 403.
The transfer air pipe 408 is driven to horizontally move through the first air cylinder 5, so that when the air pipe 6 is ventilated, the suction nozzle piece 409 on the transfer air pipe 408 can rapidly take the adjacent thermistor strip 3, and the detection speed of the thermistor strip 3 is greatly improved.
The using method of the device comprises the following steps: when the thermistor strip 3 is detected, the transfer air pipe 408 is pulled through the first air cylinder 5, then the transfer air pipe 408 can synchronously drive the suction nozzle piece 409 to adsorb the thermistor strip 3 through the air pipe 6, and in the process that the transfer air pipe 408 moves towards the thermistor strip 3, the L-shaped pulling piece 401 can be pushed through the U-shaped connecting frame 407, then the L-shaped pulling piece 401 pushes the push plate 402, then the push plate 402 can slide in the track close to the lower side of the annular guide rail 404 through the sideslip posts 4010 on two sides in the pushing process, then the suction nozzle piece 409 pushes the suction nozzle piece 409, the suction nozzle piece 409 pulls the thermistor strip 3, and the suction nozzle piece 409 drives the thermistor strip 3 to loosen the thermistor strip 3 when being located above the inclined guide plate 7, then the thermistor strip 3 can drop into the detection mechanism 8 through the inclined guide plate 7, meanwhile the push plate 402 is pushed by the ring piece 405, then the push plate 402 and the supporting plate 13 compressed in the pushing process, thus the sideslip posts 4010 are pushed into the slide rail close to the upper side of the annular guide rail 404 under the action of the spring 14, then the push plate 4010 can push plate 4010 pushes the thermosensitive strip 3 to enter the detection mechanism 3, and the thermistor strip 3 can be conveniently detected.
In this example, the material guide mechanism 4 can quickly feed the thermistor strip 3 and simultaneously can quickly feed the thermistor strip, so that the efficiency of visual detection of the thermistor is higher.
Example 2, on the basis of example 1, further defines the detection mechanism 8:
referring to fig. 5 and 6, the detection mechanism 8 includes: the detection frame 801, the guide hole 806 has been seted up to detection frame 801 vertically one side, and detection frame 801 one side corresponds guide hole 806 arc and changes piece 803, and one side of arc in the arc changes piece 803 is provided with a plurality of arc guide 802 along its length direction. The arc guide 802 and the arc rotating 803 constitute an arc guide member, and the end of the arc guide member is provided with a conveyor belt 9.
Referring to fig. 8, a pulling plate 11 is provided on the lower surface of the inner cavity of the inspection rack 801, and a second cylinder 10 is connected to one side of the pulling plate 11, and the second cylinder 10 is mounted on the side of the inspection rack 801. The second cylinder 10 can drive the pulling plate 11 to pull the thermistor strip 3 into the guide hole 806 for overturning.
The detection frame 801 is of a U-shaped structure with an opening facing the side, a first CCD camera 804 is mounted on the upper surface of the inner cavity of the detection frame 801, the first CCD camera 804 is opposite to the lower surface of the inner cavity of the detection frame 801, a second CCD camera 805 is arranged on the lower surface of the detection frame 801, and the second CCD camera 805 is opposite to a belt on the conveying belt 9.
The first CCD camera 804 is used for conveniently detecting the front surface of the thermistor strip 3, and the second CCD camera 805 is used for quickly detecting the back surface of the thermistor strip 3.
After the thermistor strip 3 enters the detection mechanism 8, the front surface of the thermistor strip 3 is detected by the first CCD camera 804, then the pull plate 11 is driven by the second cylinder 10 to push the thermistor strip 3 into the guide hole 806, the thermistor strip 3 in the arc-shaped guide rail component is overturned, the overturned thermistor strip 3 enters the transmission belt 9, and thus the second CCD camera 805 can rapidly detect the back surface of the thermistor strip 3, so that the front surface and the back surface of the thermistor strip 3 can be rapidly detected.
Example 3, on the basis of example 2, further defines a conveyor belt 9:
referring to fig. 7 and 8, a side baffle 12 is arranged on one side of the conveyor belt 9, the side baffle 12 is in an L-shaped structure, a strip-shaped restraining hole is formed in the horizontal direction of the side baffle 12, and the strip-shaped restraining hole is matched with the belt. The thermistor strip 3 falling onto the conveyor belt 9 can be restrained on the belt by the side shield 12 for linear conveyance.
The working process of the device is as follows:
when the thermistor strip 3 is detected, the transfer air pipe 408 is pulled through the first air cylinder 5, then the transfer air pipe 408 can synchronously drive the suction nozzle piece 409 to adsorb the thermistor strip 3 through the air pipe 6, the L-shaped pulling piece 401 can be pushed through the U-shaped connecting frame 407 in the process that the transfer air pipe 408 moves towards the thermistor strip 3, then the L-shaped pulling piece 401 pushes the push plate 402, then the push plate 402 can slide in a track close to the lower side of the annular guide rail 404 through the sideslip posts 4010 on two sides in the pushing process, then the suction nozzle piece 409 pulls the thermistor strip 3 when the first air cylinder 5 pushes the suction nozzle piece 409, the suction nozzle piece 409 drives the thermistor strip 3 to be located above the inclined guide plate 7, then the thermistor strip 3 falls into the detection mechanism 8 through the inclined guide plate 7, meanwhile the ring piece 405 pushes the push plate 402, then the push plate 402 and the supporting plate 13 compressed in the pushing process, so that the sideslip posts 4010 are pushed into the track close to the upper side of the annular guide rail 404 under the action of the spring 14, and then the push plate 4010 drives the push plate 4010 to push the thermistor strip 402 to finish the thermistor strip 3, and then the thermistor strip 3 is pushed forward.
After the thermistor strip 3 enters the detection mechanism 8, the front surface of the thermistor strip 3 is detected by the first CCD camera 804, then the pull plate 11 is driven by the second cylinder 10 to push the thermistor strip 3 into the guide hole 806, the thermistor strip 3 in the arc-shaped guide rail component is overturned, the overturned thermistor strip 3 enters the transmission belt 9, and thus the second CCD camera 805 can rapidly detect the back surface of the thermistor strip 3, so that the front surface and the back surface of the thermistor strip 3 can be rapidly detected.
After the detection, the thermistor strip 3 is transported to the next process via the conveyor belt 9.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (4)
1. A thermistor vision inspection device, comprising:
a support (1); the thermistor feeding device is characterized in that the supporting frames (1) are symmetrically arranged left and right, the inner walls of the two supporting frames (1) are respectively provided with an installation connecting block (2), and a material guiding mechanism (4) for conveying the thermistor strips (3) is arranged between the two installation connecting blocks (2); one side of the material guiding mechanism (4) is connected with an inclined guide plate (7), and the lower end of the inclined guide plate (7) is connected with a detection mechanism (8) for collecting the surface image of the thermistor strip (3);
the method is characterized in that:
the material guiding mechanism (4) comprises: an inner guide rail (403) arranged at both sides and respectively connected with the installation connecting blocks (2); an annular guide rail (404) arranged below the mounting connection block (2); a side slip column (4010) slidably coupled within the annular rail (404); a push plate (402) disposed between two of the side-slip columns (4010);
the pushing plate (402) slides in the annular inner cavity of the annular guide rail (404) through the sideslip columns (4010) on two sides; one side of the push plate (402) is connected with a limit connecting piece (406), a ring piece (405) is sleeved on the outer wall of the limit connecting piece (406), one side of the ring piece (405) is connected with an L-shaped pulling piece (401), and one end of the L-shaped pulling piece (401) is connected with a U-shaped connecting frame (407);
the cross section of the annular inner cavity of the annular guide rail (404) is in a parallelogram structure, a spring (14) is arranged in the inner cavity of the apex angle of the annular guide rail (404) close to the lower left, a supporting plate (13) is connected to the spring (14), when the push plate (402) moves in an annular manner to the apex angle of the lower left of the annular guide rail (404) in the annular guide rail (404), the supporting plate (13) is extruded by a sideslip column (4010) on the push plate (402), the spring (14) is extruded by the supporting plate (13), the sideslip column (4010) is jacked into a track above the annular guide rail (404), and the push plate (402) forms a high-low difference motion;
an inner cavity of the U-shaped connecting frame (407) is provided with an adapting air pipe (408), and one side of the adapting air pipe (408) is provided with a suction nozzle piece (409) for adsorbing the thermistor strip (3); the upper end of the transfer air pipe (408) is connected with an air pipe (6), and one side of the transfer air pipe (408) is connected with a first air cylinder (5) for driving the transfer air pipe to horizontally move;
the detection mechanism (8) comprises: the device comprises a detection frame (801), a turnover mechanism, a first CCD camera (804) for detecting the front surface of the thermistor strip (3) and a second CCD camera (805) for detecting the back surface of the thermistor strip (3);
a guide hole (806) is formed in one side of the detection frame (801) in the vertical direction, an arc-shaped rotating piece (803) is arranged on one side of the detection frame (801), and a plurality of arc-shaped guide pieces (802) are arranged on one side of the inner cambered surface of the arc-shaped rotating piece (803) along the length direction of the inner cambered surface; the arc guide piece (802) and the arc rotating piece (803) form an arc guide rail component, and a transmission belt (9) is arranged at the end of the arc guide rail component;
the turnover mechanism is arranged on the detection frame (801) and is used for turning over the thermistor strip (3).
2. A thermistor visual inspection apparatus as set forth in claim 1, wherein: the turnover mechanism comprises:
the pulling plate (11) is arranged on the lower surface of the inner cavity of the detection frame (801); a second air cylinder (10) is connected to one side of the pull plate piece (11), and the second air cylinder (10) is arranged on the side edge of the detection frame (801); the second air cylinder (10) drives the pull plate piece (11) to pull the thermistor strip (3) into the guide hole (806) for overturning.
3. A thermistor visual inspection apparatus as set forth in claim 1, wherein: the detection rack (801) is of a U-shaped structure with an opening facing to the side face; the first CCD camera (804) is mounted on the upper surface of the inner cavity of the detection frame (801), the first CCD camera (804) is opposite to the lower surface of the inner cavity of the detection frame (801), the second CCD camera (805) is arranged on the lower surface of the detection frame (801), and the second CCD camera (805) is opposite to a belt on the conveying belt (9).
4. A thermistor visual inspection apparatus as set forth in claim 1, wherein: a side baffle (12) is arranged on one side of the transmission belt (9); the side baffle (12) is of an L-shaped structure, a strip-shaped restraining hole is formed in the horizontal direction, and the thermistor strip (3) is conveyed on the belt in a linear mode through the strip-shaped restraining hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310831108.4A CN116559182B (en) | 2023-07-07 | 2023-07-07 | Visual detection device for thermistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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