CN111842190A - Fastener surface defect detection device and detection method - Google Patents
Fastener surface defect detection device and detection method Download PDFInfo
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- CN111842190A CN111842190A CN202010747116.7A CN202010747116A CN111842190A CN 111842190 A CN111842190 A CN 111842190A CN 202010747116 A CN202010747116 A CN 202010747116A CN 111842190 A CN111842190 A CN 111842190A
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- fastener
- plate
- detection device
- motor
- ejection
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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
- B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
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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
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
- B07C5/3422—Sorting according to other particular properties according to optical properties, e.g. colour using video scanning devices, e.g. TV-cameras
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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
-
- 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
- B07C2501/00—Sorting according to a characteristic or feature of the articles or material to be sorted
- B07C2501/0009—Sorting of fasteners, e.g. screws, nuts, bolts
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses a device and a method for detecting surface defects of fasteners, wherein the device comprises a base, a rotary table is arranged on the upper end surface of the base, a rotary seat is arranged on the upper end surface of the rotary table, a detection device is arranged on the left side of the rotary seat, a qualified product ejection device and a defective product ejection device are respectively arranged on the rear side of the detection device, a plurality of fastener mounting grooves are formed in the upper end surface of the rotary seat, and ejection grooves are formed in the lower parts of the fastener mounting grooves, so that the total length, the rod length, the head diameter, the large diameter and the small diameter of a screw can be automatically, efficiently and accurately detected, the head thickness, the tooth pitch, the head rod and the head are concentric, the head grooves are concentric, the torsional groove shape, the head shape, characters, cracks and the like can be accurately recorded, the number of defective products and the number of defective products can be respectively output.
Description
Technical Field
The invention relates to the technical field of fastener production, in particular to a fastener surface defect detection device and a detection method.
Background
Non-destructive inspection techniques are often required for quality inspection of fasteners. Currently, common methods for nondestructive testing include ultrasonic testing, eddy current testing, radiation testing, magnetic particle testing, and penetrant testing. The ultrasonic detection bolt is easy to have missing detection or misjudgment, the ray detection is not widely applied in the field of fastener detection, the eddy current nondestructive detection needs special signal processing due to a plurality of interference factors, the surface is complex in the detection of the fastener, the defects of all parts of the bolt cannot be detected by the positioning and scanning of a probe at a common through coil or a polished rod, the complexity of a detection device is determined by the magnetic leakage detection mechanism, the unreliability of a detection system is correspondingly increased, after the high-strength bolt is magnetized, N, S poles are formed by two threads to form a magnetic leakage field, therefore, cracks between the threads are easy to miss detection, and the penetration detection has the following limitations: the detection procedure is complex, only the surface opening defect can be detected, and the pollution to the environment is serious, so that a device and a method for detecting the surface defect of the fastener are needed.
Disclosure of Invention
The present invention is directed to a device and a method for detecting surface defects of a fastener, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a fastener surface defect detection device, includes the base, the carousel is installed to the base up end, the carousel up end is installed and is rotated the seat, it installs detection device to rotate the seat left side, qualified product ejecting device and substandard product ejecting device are installed respectively to the detection device rear side, it is provided with a plurality of fastener mounting grooves to rotate the seat up end, fastener mounting groove below is provided with the ejecting groove.
As a further scheme of the invention: the rotary table is characterized in that a motor is installed in the base, a fixing column is fixedly connected to the upper end face of the rotary table, the rotary table is sleeved on the outer surface of the fixing column, a top plate is installed at the upper end of the fixing column in a rotating mode, a vertical rod is connected between the bottom end face of the top plate and the rotary table, and the output end of the motor is fixedly connected with the top plate.
As a further scheme of the invention: the detection device comprises a first mounting column, the lower end of the first mounting column is connected with a first supporting plate, the upper end of the first mounting column is connected with a first fixing plate, a first telescopic motor is mounted on the upper end face of the first fixing plate, the output end of the first telescopic motor is connected with a lifting plate, and a plurality of cameras are mounted on the bottom end face of the lifting plate.
As a further scheme of the invention: qualified product ejecting device includes the second erection column, second erection column lower extreme is connected with the second backup pad, second erection column upper end is connected with the second fixed plate, wear to be equipped with a plurality of perpendicular holes in the second fixed plate, erect downthehole ejector pin that is provided with, ejector pin upper end is connected with ejecting piece, and a plurality of ejector pin lower extremes are fixed and are provided with the connecting plate, the flexible motor of second is installed to the second fixed plate bottom face left and right sides, the flexible motor output of second and connecting plate fixed connection.
As a further scheme of the invention: and one side of the camera is provided with an illuminating lamp.
As a further scheme of the invention: the qualified product ejection device and the defective product ejection device are arranged in the same structure.
As a further scheme of the invention: the diameter of the ejection groove is the same as that of the vertical hole, and the diameter of the ejection groove is smaller than that of the fastener mounting groove.
A method for detecting surface defects of a fastener comprises the following steps:
s1: clamping the fastener in the fastener mounting slot;
s2: starting a motor to drive the top plate to rotate, rotating at a constant speed along the turntable through the vertical rod and the rotating seat connected with the vertical rod, and placing the fastener mounting groove provided with the fastener below the detection device;
s3: the first telescopic motor pushes the lifting plate and the camera on the bottom end face of the lifting plate to move downwards and extend into the mounting groove of the fastener, the characteristics of the cross section of the fastener in each direction are imaged, and the acquired image is sent to the image acquisition unit;
s4: the image acquisition unit performs A/D conversion on the image, converts the analog image signal into a digital image signal which can be received and processed by a computer, and sends the digital image signal to the error calculation unit;
s5: the error calculation unit calculates errors between the fasteners and standards according to various standards of the production quality of the fasteners arranged in the MCU, and then feeds back calculation results to the MCU;
s6: the MCU judges and records the position of the problematic fastener according to the calculation result;
s7: and for qualified fasteners, the qualified fasteners are ejected out through the qualified product ejection device, the defective products are ejected out through the defective product ejection device, and when the ejection operation is actually carried out, the second telescopic motor pushes the connecting plate and the ejection rod connected with the connecting plate to move upwards to eject the fasteners in the fastener mounting grooves, so that the fastener detection is realized.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a fastener surface defect detection device and a detection method, which can realize automatic, high-efficiency and accurate detection of the total length, rod length, head diameter, large diameter, small diameter, head thickness, tooth pitch, head-rod concentricity, head-groove concentricity, torsion-groove shape, head shape, characters, cracks and the like of a screw, can accurately record the number of good products and defective products, respectively outputs the defective products and the good products, and greatly improves the finished product quality of the screw.
Drawings
FIG. 1 is a schematic view of the overall structure of a device and method for detecting surface defects of a fastener;
FIG. 2 is a schematic diagram of a partial structure of a top view of a rotary base for an apparatus and a method for detecting surface defects of a fastener;
FIG. 3 is a schematic structural view of a qualified product ejecting apparatus of a fastener surface defect detecting apparatus and a detecting method.
In the figure: 1-connecting plate, 2-first supporting plate, 3-first mounting column, 4-ejection groove, 5-fastener mounting groove, 6-camera, 7-lifting plate, 8-first fixing plate, 9-first telescopic motor, 10-detection device, 11-top plate, 12-fixing column, 13-vertical rod, 14-rotating seat, 15-rotating disc, 16-base, 17-motor, 18-defective product ejection device, 19-defective product ejection device, 20-second supporting plate, 21-second mounting column, 22-second fixing plate, 23-vertical hole, 24-ejection block, 25-second telescopic motor and 26-ejection rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a technical solution: the device for detecting the surface defects of the fasteners comprises a base 16, wherein a rotary table 15 is installed on the upper end face of the base 16, a rotary seat 14 is installed on the upper end face of the rotary table 15, a detection device 10 is installed on the left side of the rotary seat 14, a qualified product ejection device 19 and a defective product ejection device 18 are installed on the rear side of the detection device 10 respectively, a plurality of fastener installation grooves 5 are formed in the upper end face of the rotary seat 14, and ejection grooves 4 are formed below the fastener installation grooves 5.
Install motor 17 in the base 16, carousel 15 up end fixedly connected with fixed column 12, it installs roof 11 to rotate 14 suits of seat at fixed column 12 surface, fixed column 12 upper end is rotated, be connected with montant 13 between roof 11 bottom face and the seat 14 that rotates, motor 17 output and roof 11 fixed connection.
Qualified product ejecting device 19 includes second erection column 21, second erection column 21 lower extreme is connected with second backup pad 20, second erection column 21 upper end is connected with second fixed plate 22, wear to be equipped with a plurality of perpendicular holes 23 in the second fixed plate 22, be provided with ejector pin 26 in the perpendicular hole 23, ejector pin 26 upper end is connected with ejecting block 24, and a plurality of ejector pin 26 lower extremes are fixed and are provided with connecting plate 1, the flexible motor 25 of second is installed to the second fixed plate 22 bottom face left and right sides, the flexible motor 25 output of second and connecting plate 1 fixed connection.
And an illuminating lamp is arranged on one side of the camera 6.
The qualified product ejection device 19 and the defective product ejection device 18 are arranged in the same structure.
The diameter of the ejection groove 4 is the same as that of the vertical hole 23, and the diameter of the ejection groove 4 is smaller than that of the fastener mounting groove 5.
A method for detecting surface defects of a fastener comprises the following steps:
s1: the fastener is clamped in the fastener mounting groove 5;
s2: starting a motor 17 to drive the top plate 11 to rotate, rotating at a constant speed along the turntable 15 through the vertical rod 13 and the rotating seat 14 connected with the vertical rod, and placing the fastener installation groove 5 provided with the fastener below the detection device 10;
s3: the first telescopic motor 9 pushes the lifting plate 7 and the camera 6 at the bottom end face of the lifting plate to move downwards and extend into the fastener mounting groove 5, the characteristics of the cross section of the fastener in each direction are imaged, and the acquired image is sent to the image acquisition unit;
s4: the image acquisition unit performs A/D conversion on the image, converts the analog image signal into a digital image signal which can be received and processed by a computer, and sends the digital image signal to the error calculation unit;
s5: the error calculation unit calculates errors between the fasteners and standards according to various standards of the production quality of the fasteners arranged in the MCU, and then feeds back calculation results to the MCU;
s6: the MCU judges and records the position of the problematic fastener according to the calculation result;
s7: and for qualified fasteners, ejecting qualified fasteners by the qualified product ejection device 19, ejecting defective fasteners by the defective product ejection device 18, and during actual ejection operation, pushing the connecting plate 1 and the ejection rod 26 connected with the connecting plate by the second telescopic motor 25 to move upwards to eject the fasteners in the fastener mounting grooves 5, thereby realizing fastener detection.
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 attributes 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 description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A fastener surface defect detection device, includes base (16), its characterized in that: the improved fixture is characterized in that a rotary table (15) is installed on the upper end face of the base (16), a rotary seat (14) is installed on the upper end face of the rotary table (15), a detection device (10) is installed on the left side of the rotary seat (14), a qualified product ejection device (19) and a defective product ejection device (18) are installed on the rear side of the detection device (10) respectively, a plurality of fastener installation grooves (5) are formed in the upper end face of the rotary seat (14), and ejection grooves (4) are formed in the lower portions of the fastener installation grooves (5).
2. A fastener surface defect inspection apparatus as defined in claim 1, wherein: install motor (17) in base (16), carousel (15) up end fixedly connected with fixed column (12), rotate seat (14) suit at fixed column (12) surface, fixed column (12) upper end is rotated and is installed roof (11), be connected with montant (13) between roof (11) bottom face and the rotation seat (14), motor (17) output and roof (11) fixed connection.
3. A fastener surface defect inspection apparatus as defined in claim 2, wherein: detection device (10) include first erection column (3), first erection column (3) lower extreme is connected with first backup pad (2), first erection column (3) upper end is connected with first fixed plate (8), first flexible motor (9) are installed to first fixed plate (8) up end, first flexible motor (9) output is connected with lifter plate (7), a plurality of cameras (6) are installed to lifter plate (7) bottom face.
4. A fastener surface defect inspection apparatus as defined in claim 3, wherein: qualified product ejecting device (19) include second erection column (21), second erection column (21) lower extreme is connected with second backup pad (20), second erection column (21) upper end is connected with second fixed plate (22), wear to be equipped with a plurality of perpendicular holes (23) in second fixed plate (22), be provided with ejector rod (26) in perpendicular hole (23), ejector rod (26) upper end is connected with ejecting piece (24), and a plurality of ejector rod (26) lower extreme are fixed and are provided with connecting plate (1), the flexible motor of second (25) is installed to both sides about second fixed plate (22) bottom face, flexible motor of second (25) output and connecting plate (1) fixed connection.
5. The apparatus of claim 4, wherein: and an illuminating lamp is arranged on one side of the camera (6).
6. The apparatus of claim 5, wherein: the qualified product ejection device (19) and the defective product ejection device (18) are arranged in the same structure.
7. The apparatus of claim 6, wherein: the diameter of the ejection groove (4) is the same as that of the vertical hole (23), and the diameter of the ejection groove (4) is smaller than that of the fastener mounting groove (5).
8. A method for detecting surface defects of a fastener is characterized by comprising the following steps:
s1: clamping the fastener in the fastener mounting groove (5);
s2: the motor (17) is started to drive the top plate (11) to rotate, the vertical rod (13) and the rotating seat (14) connected with the vertical rod rotate at a constant speed along the turntable (15), and the fastener mounting groove (5) provided with the fastener is arranged below the detection device (10);
s3: the first telescopic motor (9) pushes the lifting plate (7) and the camera (6) on the bottom end face of the lifting plate to move downwards and extend into the fastener mounting groove (5), the characteristics of the cross section of the fastener in each direction are imaged, and the acquired image is sent to the image acquisition unit;
s4: the image acquisition unit performs A/D conversion on the image, converts the analog image signal into a digital image signal which can be received and processed by a computer, and sends the digital image signal to the error calculation unit;
s5: the error calculation unit calculates errors between the fasteners and standards according to various standards of the production quality of the fasteners arranged in the MCU, and then feeds back calculation results to the MCU;
s6: the MCU judges and records the position of the problematic fastener according to the calculation result;
s7: and for qualified fasteners, the qualified fasteners are ejected out through a qualified product ejection device (19), defective products are ejected out through a defective product ejection device (18), and when ejection operation is actually carried out, the second telescopic motor 25 pushes the connecting plate (1) and an ejection rod (26) connected with the connecting plate to move upwards to eject the fasteners in the fastener mounting grooves (5), so that fastener detection is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010747116.7A CN111842190A (en) | 2020-07-29 | 2020-07-29 | Fastener surface defect detection device and detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010747116.7A CN111842190A (en) | 2020-07-29 | 2020-07-29 | Fastener surface defect detection device and detection method |
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| CN111842190A true CN111842190A (en) | 2020-10-30 |
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| CN202010747116.7A Pending CN111842190A (en) | 2020-07-29 | 2020-07-29 | Fastener surface defect detection device and detection method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114405870A (en) * | 2021-12-15 | 2022-04-29 | 铭昊汽车金属零部件(广州)有限公司 | Multi-step tubular part sorting equipment and use method |
| CN116944085A (en) * | 2023-09-20 | 2023-10-27 | 江苏零界科技集团有限公司 | Automatic grade sorting equipment for wood boards |
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| CN109632821A (en) * | 2017-10-09 | 2019-04-16 | 南京敏光视觉智能科技有限公司 | A kind of fastener defect detecting device and method |
| CN209334237U (en) * | 2018-12-17 | 2019-09-03 | 优涂扣紧固件（苏州）有限公司 | A kind of automatic detection apparatus for fastener |
| CN210411601U (en) * | 2019-08-07 | 2020-04-28 | 重庆市灵龙自动化设备有限公司 | Stator withstand voltage detection device |
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2020
- 2020-07-29 CN CN202010747116.7A patent/CN111842190A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1250036A (en) * | 1969-07-15 | 1971-10-20 | Spranger Kg Polyplaste | A device for testing the dimensional accuratcy of axially symmetrical parts |
| JPS5539001A (en) * | 1978-09-13 | 1980-03-18 | Hayashi Yakuhin Kikai Kk | Defective capsule detector |
| CN109632821A (en) * | 2017-10-09 | 2019-04-16 | 南京敏光视觉智能科技有限公司 | A kind of fastener defect detecting device and method |
| CN208321369U (en) * | 2018-03-09 | 2019-01-04 | 江苏丁是丁精密科技有限公司 | A kind of lens collar class decoration CCD detection device |
| CN209334237U (en) * | 2018-12-17 | 2019-09-03 | 优涂扣紧固件（苏州）有限公司 | A kind of automatic detection apparatus for fastener |
| CN210411601U (en) * | 2019-08-07 | 2020-04-28 | 重庆市灵龙自动化设备有限公司 | Stator withstand voltage detection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114405870A (en) * | 2021-12-15 | 2022-04-29 | 铭昊汽车金属零部件(广州)有限公司 | Multi-step tubular part sorting equipment and use method |
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