CN111570300A

CN111570300A - Self-checking system of nut

Info

Publication number: CN111570300A
Application number: CN202010480201.1A
Authority: CN
Inventors: 叶伟峰
Original assignee: Wuhu Zhaohe Auto Parts Technology Co ltd
Current assignee: Wuhu Zhaohe Auto Parts Technology Co ltd
Priority date: 2020-05-30
Filing date: 2020-05-30
Publication date: 2020-08-25

Abstract

The invention provides a self-checking system of a nut, which has reasonable structural design, realizes double-time double-sided detection imaging by arranging two groups of machine vision detection devices and arranging a turnover structure between the two groups of machine vision detection devices, and arranges a sorting structure at each group of machine vision devices; the turnover structure is realized by the groove and the sliding block, and the turnover structure is simple in structure and convenient to operate.

Description

Self-checking system of nut

Technical Field

The invention mainly relates to the technical field of nut production, in particular to a self-checking system of a nut.

Background

The machine vision system is to use a machine to replace human eyes to make various measurements and judgments. Machine vision is a very important research field in the engineering field and the scientific field, and is a comprehensive discipline relating to a plurality of fields such as optics, machinery, computers, mode recognition, image processing, artificial intelligence, signal processing, photoelectric integration and the like. The application range of the method is gradually improved and popularized along with the development of industrial automation, wherein the development of the machine vision is powerfully promoted by the rapid development of the technologies such as a parent-subsidiary image sensor, a CMOS (complementary metal oxide semiconductor) and CCD (charge coupled device) camera, a DSP (digital signal processor), an ARM (advanced RISC machine) embedded technology, image processing, mode recognition and the like.

However, the existing automatic machine vision detection system for nuts is generally only provided with one nut, imaging is carried out from one direction of the nut, but the surface of the nut, which is in contact with the supporting surface, is not detected, so that detection errors occur.

Disclosure of Invention

Problems to be solved by the invention

The invention provides a self-checking system of a nut, which is used for solving the technical problem that the detection error is caused because the existing machine vision automatic detection device of the nut in the background technology is only provided with one group, the imaging is carried out from one direction of the nut, but the surface of the nut, which is contacted with a supporting surface, is not detected.

Technical scheme

In order to achieve the purpose, the technical scheme provided by the invention is as follows: the utility model provides a self-checking system of nut, sets up behind conveyor, and is including two sets of machine vision detection device, it is two sets of be equipped with the turn-over structure between the vision detection device, the turn-over structure is used for carrying out the turn-over with the nut that normally passes through and transports next a set of machine vision detection device department.

Further, turn-over structure includes first backup pad and second backup pad, first backup pad with form first movable groove between the second backup pad, first movable groove both ends are equipped with the limiting plate, just first movable groove accordant connection first fly leaf, first fly leaf swing joint first backup pad with the second backup pad, just first fly leaf one end swing joint drive unit, its other end are equipped with the extension board, extension board surface suction cup.

Furthermore, the sucker is an electromagnetic sucker, and an angle adjusting structure is arranged at the joint of the sucker and the support plate.

Furthermore, a first sliding block and a second sliding block are respectively arranged on two sides of the first movable plate, the first sliding block is connected with a first sliding groove in a matching mode, the first sliding groove is formed in the side face of the first supporting plate, two ends of the first sliding groove are in a linear structure, and the middle of the first sliding groove is in a V-shaped structure; the second sliding block is connected with a second sliding groove in a matching mode, the second sliding groove is formed in the second supporting plate, and the second sliding block penetrates through one end of the second sliding groove and is movably connected with one end of a second movable plate.

Furthermore, the other end of the second movable plate is movably connected to the supporting block, a third sliding groove is formed in the second movable plate and connected with a third sliding block in a matched mode, the third sliding block is fixedly connected with one end of the rocking plate, and the other end of the rocking plate is fixedly connected with the driving end of the first motor.

Furthermore, the angle adjusting structure comprises a supporting block, the supporting block is in an isosceles trapezoid structure, one end of the supporting block is fixedly connected with the supporting plate, the other end of the supporting block is movably connected with the middle part of the mounting plate, and the mounting plate is detachably connected with the sucker; two electric telescopic rods are symmetrically arranged on the two sides of the supporting block and the supporting plate, and the other ends of the electric telescopic rods are hinged to the mounting plate.

Furthermore, each group of machine vision detection devices is provided with a sorting structure, the machine vision detection devices can detect unqualified products, abnormal products and normal products, the sorting structure is utilized to push the detected nuts into the unqualified product collection boxes and the abnormal product collection boxes according to results, the nuts enter the turnover structure for secondary detection when being detected normally, and the secondary detection products can be conveyed into the normal product collection boxes when being detected normally.

Further, the sorting structure can use a mechanical arm to push the nuts.

Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

the double-side detection imaging device is reasonable in structural design, two groups of machine vision detection devices are arranged, a turnover structure is arranged between the two groups of machine vision detection devices, double-side detection imaging is achieved, sorting structures are arranged at the positions of the machine vision devices in each group, unqualified products, abnormal products and normal products can be detected by the machine vision detection devices, detected nuts are pushed into an unqualified product collection box and an abnormal product collection box according to results by using a sorting structure, the nuts enter the turnover structure for secondary detection when being detected normally, the secondary detection products can be conveyed into a normal product collection box when being detected normally, and the detection precision of the nuts is improved; the turnover structure is realized by the groove and the sliding block, and the turnover structure is simple in structure and convenient to operate.

Drawings

FIG. 1 is a block flow diagram of the present invention;

FIG. 2 is a schematic view of a turn-over structure of the present invention;

FIG. 3 is a schematic view of the turn-over structure of the present invention in exploded form;

fig. 4 is a schematic view of an angle adjusting structure of the present invention.

Reference numerals

1-a turn-over structure; 11-a first support plate; 111-a first runner; 12-a second support plate; 121-a second chute; 13-a first active slot; 131-a limiting plate; 14-a first flap; 141-a first slider; 142-a second slider; 15-a support plate; 151-suction cup; 16-a second flap; 161-supporting block; 162-a third runner; 17-a third slide; 18-a rocker plate; 19-a first electric machine; 2-an angle adjustment structure; 21-branch block; 22-a mounting plate; 23-electric telescopic rod.

Detailed Description

In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in many different forms and are not limited to the embodiments described herein, but rather are provided for the purpose of providing a more thorough disclosure of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

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

Examples

Referring to fig. 1-4, a self-checking system for nuts, which is arranged behind a conveying device, includes two sets of machine vision inspection devices, a turn-over structure 1 is arranged between the two sets of vision inspection devices, and the turn-over structure 1 is used for turning over nuts that normally pass through and conveying the nuts to the next set of machine vision inspection devices; wherein the machine vision detection device uses the prior art, and the turnover structure 1 does not influence the normal work of the machine vision detection device.

Turn-over structure 1 includes first backup pad 11 and second backup pad 12, first backup pad 12 with form first movable groove 13 between the second backup pad 12, first movable groove 13 both ends are equipped with limiting plate 131, just first movable groove 13 accordant connection first movable plate 14, first movable plate 14 swing joint first backup pad 11 with second backup pad 12, just first movable plate 14 one end swing joint drive unit, its other end are equipped with sucking disc 151, sucking disc 151 uses electromagnet, just sucking disc 151 with extension board 15 junction is equipped with angle modulation structure 2.

The angle adjusting structure 2 comprises a supporting block 21, the supporting block 21 is in an isosceles trapezoid structure, one end of the supporting block 21 is fixedly connected with the supporting plate 15, the other end of the supporting block 21 is movably connected with a mounting plate 22, and the mounting plate 22 is detachably connected with the sucker 151; two electric telescopic rods 23 are symmetrically arranged on two sides of the support block 21 and the support plate 15, and the other ends of the electric telescopic rods 23 are hinged to the mounting plate 22.

In this embodiment, the support block 21 is used as the middle pivot of the mounting plate 22, the mounting plate 22 is a seesaw structure capable of being adjusted to a certain angle from left to right, when the angle of the suction cup 151 is not required to be adjusted, the lengths of the two electric telescopic rods 23 are kept consistent, when the angle of the suction cup 151 is required to be adjusted, one electric telescopic rod is extended and the other is shortened, so that the mounting plate 22 is inclined, that is, the angle adjustment of the suction cup 151 in a certain range is realized.

A first sliding block 141 and a second sliding block 142 are respectively arranged on two sides of the first movable plate 14, the first sliding block 141 is connected with a first sliding groove 111 in a matching manner, the first sliding groove 111 is arranged on the side surface of the first supporting plate 11, two ends of the first sliding groove 111 are linear structures, and the middle part of the first sliding groove 111 is in a V-shaped structure; the second sliding block 142 is connected to the second sliding groove 121 in a matching manner, the second sliding groove 121 is disposed on the second support plate 12, and one end of the second sliding block 142 passing through the second sliding groove 121 is movably connected to one end of the second movable plate 16.

The other end of the second movable plate 16 is movably connected to the supporting block 161, the second movable plate 16 is provided with a third sliding groove 162, the third sliding groove 162 is connected to the third sliding block 17 in a matching manner, the third sliding block 17 is fixedly connected to one end of the rocking plate 18, and the other end of the rocking plate 18 is fixedly connected to the driving end of the first motor 19.

In this embodiment, after the first set of machine vision inspection device detects the nut and determines that the nut is normal, the suction cup 151 sucks the detected nut, the first motor 19 is turned on to drive the rocker 18 to rotate, so that the third slider 17 slides in the third sliding slot 162 and drives the second movable plate 16 to swing left and right, and the other end of the second movable plate 16 drives the first slider 141 on the first movable plate 14 to slide on the first sliding slot 111, so that the first movable plate moves and turns over on the first movable slot 13, thereby turning over the nut.

The machine vision detection device can detect unqualified products, abnormal products and normal products, the sorting structure is used for pushing the detected nuts into the unqualified product collection box and the abnormal product collection box according to results, the nuts enter the turnover structure to perform secondary detection when being detected normally, the secondary detection products can be conveyed into the normal product collection box when being detected normally, and the sorting structure can push the nuts by using a mechanical arm or a cylinder.

In conclusion, the double-side detection imaging device is reasonable in structural design, two sets of machine vision detection devices are arranged, the turnover structure is arranged between the two sets of machine vision detection devices, double-side detection imaging is achieved, the sorting structures are arranged at the positions of the machine vision devices in each set, when the machine vision detection devices can detect unqualified products, abnormal products and normal products, the nuts after detection are pushed into the unqualified product collection box and the abnormal product collection box according to results by the sorting structures, the nuts enter the turnover structure for secondary detection when being detected normally, the secondary detection products can be conveyed into the normal product collection box when being detected normally, and the detection precision of the nuts is improved; the turnover structure is realized by the groove and the sliding block, and the turnover structure is simple in structure and convenient to operate.

The above-mentioned embodiments only express a certain implementation mode of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which are within the protection scope of the present invention; therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a self-checking system of nut, sets up behind conveyor, its characterized in that: the machine vision detection device comprises two sets of machine vision detection devices, wherein a turnover structure (1) is arranged between the vision detection devices, and the turnover structure (1) is used for turning over and transporting nuts which normally pass through to the next set of machine vision detection devices.

2. A self-testing system for nuts, as claimed in claim 1, wherein: turn-over structure (1) includes first backup pad (11) and second backup pad (12), first backup pad (12) with form first activity groove (13) between second backup pad (12), first activity groove (13) both ends are equipped with limiting plate (131), just first activity groove (13) first fly leaf (14) of accordant connection, first fly leaf (14) swing joint first backup pad (11) with second backup pad (12), just first fly leaf (14) one end swing joint drive unit, its other end are equipped with extension board (15), extension board (15) surface suction cup (151).

3. A self-checking system for nuts, as claimed in claim 2, wherein: the sucker (151) uses an electromagnetic sucker, and an angle adjusting structure (2) is arranged at the joint of the sucker (151) and the support plate (15).

4. A self-checking system for nuts, as claimed in claim 2, wherein: a first sliding block (141) and a second sliding block (142) are respectively arranged on two sides of the first movable plate (14), the first sliding block (141) is connected with a first sliding groove (111) in a matching mode, the first sliding groove (111) is arranged on the side face of the first supporting plate (11), two ends of the first sliding groove (111) are in a linear structure shape, and the middle of the first sliding groove (111) is in a V-shaped structure;

the second sliding block (142) is connected with a second sliding chute (121) in a matching mode, the second sliding chute (121) is arranged on the second supporting plate (12), and one end, penetrating through the second sliding chute (121), of the second sliding block (142) is movably connected with one end of a second movable plate (16).

5. A self-checking system for nuts, as claimed in claim 2, wherein: the other end swing joint of second fly leaf (16) is in supporting shoe (161), just be equipped with third spout (162) on second fly leaf (16), third spout (162) accordant connection third slider (17), third slider (17) fixed connection rocking plate (18) one end, the drive end of rocking plate (18) other end fixed connection first motor (19).

6. A nut self-testing system according to claim 3, wherein: the angle adjusting structure (2) comprises a supporting block (21), the supporting block (21) is in an isosceles trapezoid structure, one end of the supporting block (21) is fixedly connected with the supporting plate (15), the other end of the supporting block (21) is movably connected with the middle of a mounting plate (22), and the mounting plate (22) is detachably connected with the sucker (151); two electric telescopic rods (23) are symmetrically arranged on two sides of the supporting block (21) and the supporting plate (15), and the other ends of the electric telescopic rods (23) are hinged to the mounting plate (22).

7. A self-testing system for nuts, as claimed in claim 1, wherein: the machine vision detection device can detect unqualified products, abnormal products and normal products, the sorting structure is utilized to push the detected nuts into the unqualified product collection box and the abnormal product collection box according to results, the nuts enter the turnover structure for secondary detection when being detected normally, and the secondary detection products can be conveyed into the normal product collection box when being detected normally.

8. A self-checking system of nuts, as claimed in claim 6, wherein: the sorting structure can use a mechanical arm to push the nuts.