DE202020104774U1 - Visual defect inspection system - Google Patents

Abstract

Visual defect inspection system, which comprises a conveying mechanism, a material guiding mechanism (1), a checking mechanism (2) and a sorting mechanism (5) for defective products, the conveying mechanism, the material guiding mechanism (1), the checking mechanism (2) and the sorting out mechanism (5) for defective products are arranged above a work table (3), the checking mechanism (2) being located above the material guiding mechanism (1), the sorting mechanism (5) for defective products being arranged downstream of the checking mechanism (2),
wherein the inspection mechanism (2) comprises a CCD camera (21), a raising and lowering drive means for driving the CCD camera (21) to move up and down, and a translation drive means for driving the CCD camera (21) as one Movement in the horizontal direction, the raising and lowering drive means having a lifting plate (22), a handle (23) and guide plates (24) on the two sides of the lifting plate (22), the lower ends of the guide plates (24) on the work table (3) are attached, the upper ends of the guide plates (24) are connected to a connecting plate (25), the handle (23) with a The threaded rod (26) is connected, the threaded rod (26) being passed through the connecting plate (24) and screwed to the lifting plate (22),
wherein two material guide mechanisms (10) 1 are provided which are located on the left and right side of a product, the material guide mechanism (1) comprising a material guide plate (11), a connecting rod (12) and a guide rod (13), wherein a plurality of guide rollers ( 14) are arranged along the conveying direction of the product on the material guide plate (11), a limiting head (121) being provided at one end of the connecting rod (12), the connecting rod (12) being passed through the mounting plate (15) at the other end and is connected to the material guide plate (11), wherein the mounting plate (15) is attached to the work table (3), the guide rod (13) being attached to the material guide plate (11) and the other end of the guide rod (13) through the mounting plate ( 15) is passed, a spring (16) being placed around the guide rod (13), the spring (16) between the material guide plate (11) and un d of the mounting plate (15), and
wherein the defective product sorting mechanism (5) comprises a suction cup (51), a lift cylinder (52) which can raise and lower the suction cup (51), and a translation drive motor (53) which can move the suction cup (51) horizontally the suction cup (51) is fastened to the lifting cylinder (52), the lifting cylinder (52) being fastened to a slide (54), the slide (54) being screwed to a second threaded rod (55), the second threaded rod (55) being connected to the translational drive motor ( 53) is connected, the translation drive motor (53) being attached to a bracket (56), the bracket (56) being attached to the work table (3).

Description

TECHNICAL AREA

The teachings relate to the technical field of visual inspection, particularly a visual defect inspection system.

STATE OF THE ART

Testing is currently done primarily through testing tools and manual visual testing. Each inspection tool has a high manufacturing cost and cannot detect many defects, adding to the company's cost. Manual testing is laborious and long-term work is tiring. This reduces the testing efficiency. There is also a subjective factor. Therefore, the product quality cannot be fully guaranteed.

In addition, when the objects are transported on the production line, the problem of positional deviation due to changes in the direction of the production line or external influences often occurs, whereby the conveying position of the objects changes and the preset target position of the objects is influenced, so that the inspection accuracy is poor.

CONTENT OF THE TEACHING

The teachings are based on the task of providing a visual defect inspection system which ensures the completeness and accuracy of the visual inspection, can convey the defective products into a collecting container after the inspection and has a high degree of automation.

In order to solve the above technical problem, a technical solution is as follows: A visual defect inspection system comprises a conveying mechanism, a material guiding mechanism, a checking mechanism and a rejecting mechanism for defective products, the conveying mechanism, the material guiding mechanism, the checking mechanism and the rejecting mechanism for defective products are arranged above a work table, wherein the checking mechanism is located above the material guide mechanism, the sorting out mechanism for defective products being arranged downstream of the checking mechanism; wherein the inspection mechanism comprises a CCD camera, a lifting and lowering drive means for driving the CCD camera to move up and down, and a translation drive means for driving the CCD camera to move in the horizontal direction, the lifting and lowering drive means a lifting plate, a handle and guide plates on the two sides of the lifting plate, wherein the lower ends of the guide plates are attached to the work table, the upper ends of the guide plates are connected to a connecting plate, the handle is connected to a threaded rod, the threaded rod is passed through the connecting plate and screwed to the lifting plate; and wherein two material guide mechanisms are provided on the left and right sides of the products, the material guide mechanism including a material guide plate, a connecting rod and a guide rod, a plurality of guide rollers being arranged along the conveying direction of the products on the material guide plate, at one end the connecting rod is provided with a limiting head, the other end of the connecting rod being passed through the mounting plate and being connected to the material guide plate, the mounting plate being fastened to the work table, the guide rod being fastened to the material guide plate and the other end of the guide rod being passed through the mounting plate a spring being placed around the guide rod, the spring being located between the material guide plate and the mounting plate; and wherein the defective product sorting mechanism includes a suction cup, a lift cylinder capable of raising and lowering the suction cup, and a translational drive motor capable of moving the suction cup horizontally, the suction cup being attached to the lifting cylinder, the lifting cylinder being attached to a slider, wherein the slide is screwed to a second threaded rod, the second threaded rod being connected to the translational drive motor, the translational drive motor being attached to a bracket, the bracket being attached to the work table.

Further, the translation drive device has a mounting rod and a translation cylinder, the CCD camera being connected to the translation cylinder, the translation cylinder being mounted on the mounting rod, the mounting rod being attached to a support plate, the support plate being attached to the lifting plate.

Furthermore, the material guide plate has a guide section, the guide section gradually inclining towards the center of the work table along the conveying direction of the products.

Furthermore, the conveyor mechanism includes a plurality of conveyor rollers.

Furthermore, the material guide plate has a mounting recess, the guide rollers being arranged in the mounting recess and protruding from the mounting recess.

The work table also has a positioning hole for the threaded rod.

Furthermore is the work table 3 with a collecting container 6th provided for defective products.

• Der Prüfmechanismus der Erfindung beinhaltet eine CCD-Kamera, eine Anhebe- und Absenkantriebseinrichtung zum Antreiben der CCD-Kamera zu einer Bewegung nach oben und nach unten und eine Translationsantriebseinrichtung zum Antreiben der CCD-Kamera zu einer Bewegung in horizontaler Richtung, wodurch die Position der Kamera verstellt werden kann, so dass eine vollständige visuelle Prüfung gewährleistet wird.

The advantages of the invention are as follows:

• The inspection mechanism of the invention includes a CCD camera, a raising and lowering drive device for driving the CCD camera to move up and down, and a translation drive device for driving the CCD camera to move in a horizontal direction, thereby adjusting the position of the camera can be adjusted so that a complete visual inspection is guaranteed.

In the teachings, two material guide mechanisms are provided, which are located on the left and right sides of the products, the guide rod being attached to the material guide plate and the other end of the guide rod being passed through the mounting plate, with a spring wrapped around the guide rod, with the spring is located between the material guide plate and the mounting plate, the products being flexibly guided and positioned by the spring, thereby ensuring the accuracy of the visual inspection.

In the teachings, the material guide plate has a guide section, the guide section gradually inclining toward the center of the work table along the conveying direction of the products in order to guide the products. The guide plate preferably has a mounting recess, with several guide rollers being arranged in the mounting recess, whereby the resistance during the transport of the products is reduced.

In the invention, the defective product sorting mechanism includes a suction cup, a lift cylinder that can raise and lower the suction cup, and a translation drive motor that can move the suction cup horizontally to convey the defective products into a collecting container.

Figure list

• 1 eine schematische Darstellung des Aufbaus der Lehren;
• 2 eine schematische Darstellung des Aufbaus des Prüfmechanismus der Lehren; und
• 3 eine schematische Darstellung des Aufbaus des Materialführungsmechanismus der Lehren.

Show it:

• 1 a schematic representation of the structure of the teachings;
• 2 a schematic representation of the structure of the test mechanism of the gauges; and
• 3 a schematic representation of the structure of the material guide mechanism of the teachings.

1,

Materialführungsmechanismus

11,

Materialführungsplatte

111,

Führungsabschnitt

112,

Montageausnehmung

12,

Verbindungsstange

121,

Begrenzungskopf

13,

Führungsstange

14,

Führungswalze

15,

Montageplatte

16,

Feder

2,

Prüfmechanismus

21,

CCD-Kamera

22,

Hubplatte

23,

Griff

24,

Führungsplatte

25,

Verbindungsplatte

26,

Gewindestange

27,

Montagestange

28,

Translationszylinder

29,

Stützplatte

3,

Arbeitstisch

4,

Förderwalze

5

Aussortiermechanismus für defekte Produkte

51,

Saugnapf

52,

Hubzylinder

53,

Translationsantriebsmotor

54,

Schieber

55,

zweite Gewindestange

6

Sammelbehälter für defekte Produkte

In the figures, parts have the following reference symbols:

1,

Material guide mechanism

11,

Material guide plate

111,

Guide section

112,

Mounting recess

12,

Connecting rod

121,

Boundary head

13,

Guide rod

14,

Guide roller

15,

Mounting plate

16,

feather

2,

Checking mechanism

21,

CCD camera

22

Lifting plate

23,

Handle

24,

Guide plate

25,

Connecting plate

26,

Threaded rod

27

Assembly rod

28,

Translation cylinder

29

Support plate

3,

Work table

4,

Conveyor roller

5

Sorting out mechanism for defective products

51,

suction cup

52,

Lifting cylinder

53,

Translational drive motor

54,

Slider

55,

second threaded rod

6th

Collection container for defective products

DETAILED DESCRIPTION

A preferred embodiment of the teachings will now be described in detail with reference to the drawings so that those skilled in the art may more readily understand the advantages and features of the invention, so that the scope of the teachings may be more clearly defined.

A visual defect inspection system, as in 1 to 3 shown comprises a conveyor mechanism, a material guide mechanism 1 , a checking mechanism 2 and a sorting mechanism 5 for defective products. The conveying mechanism, the material guiding mechanism 1 , the checking mechanism 2 and the sorting mechanism 5 for defective products are above a work table 3 arranged. The checking mechanism 2 is located above the material handling mechanism 1 . The sorting mechanism 5 for defective products is the checking mechanism 2 subordinate.

The checking mechanism 2 includes a CCD camera 21st , a raising and lowering drive device for driving the CCD camera 21st to move up and down and a translation drive device to drive the CCD camera 21st to a movement in the horizontal direction. The lifting and lowering drive device has a lifting plate 22nd , a handle 23 and guide plates 24 on both sides of the lifting plate 22nd on. The lower ends of the guide plates 24 are at the work table 3 attached. The top ends of the guide plates 24 are with a connecting plate 25th connected. The handle 23 is with a threaded rod 26th connected. The threaded rod 26th is through the connecting plate 25th passed through and with the lifting plate 22nd screwed.

There are two material handling mechanisms 1 located on the left and right sides of the products. The material guide mechanism 1 includes a material guide plate 11 , a connecting rod 12 and a guide rod 13 . Multiple guide rollers 14th are along the conveying direction of the products on the material guide plate 11 arranged. At one end of the connecting rod 12 is a limitation head 121 intended. The connecting rod 12 is with the other end through the mounting plate 15th passed through and with the material guide plate 11 connected. The mounting plate 15th is at the work table 3 attached. The guide bar 13 is on the material guide plate 11 attached and the other end of the guide rod 13 is through the mounting plate 15th passed through. Around the guide bar 13 is a feather 16 placed. The feather 16 is located between the material guide plate 11 and the mounting plate 15th .

The sorting mechanism 5 for defective products includes a suction cup 51 , a lifting cylinder 52 holding the suction cup 51 can raise and lower, and a translation drive motor 53 holding the suction cup 51 can move horizontally. The suction cup 51 is on the lifting cylinder 52 attached. The lifting cylinder 52 is on a slide 54 attached. The slider 54 is with a second threaded rod 55 screwed. The second threaded rod 55 is with the translational drive motor 53 connected. The translational drive motor 53 is on a bracket 56 attached. The bracket 56 is at the work table 3 attached.

The translation drive device has a mounting rod 27 and a translation cylinder 28 on. The CCD camera 21st is with the translation cylinder 28 connected. The translation cylinder 28 is on the assembly pole 27 assembled. The assembly rod 27 is on a support plate 29 attached. The support plate 29 is on the lifting plate 22nd attached.

In use are the CCD cameras 21st , the translation cylinder 28 , the lifting cylinder 52 and the translational drive motor 53 electrically connected to a controller.

The material guide plate 11 has a guide section 111 on. The guide section 111 gradually inclines towards the center of the work table along the conveying direction of the products 3 .

The conveyor mechanism includes several conveyor rollers 4th .

The material guide plate 11 has a mounting recess 112 on. The guide rollers 14th are in the mounting recess 112 arranged and protrude from the mounting recess 112 out.

The work table 3 has a positioning hole for the threaded rod 26th on.

The work table 3 is with a collecting container 6th provided for defective products.

The principle of operation of the invention is as follows: the handle is rotated manually until the CCD camera reaches a suitable height. The products are conveyed by the conveyor rollers and brought under the inspection mechanism under the guidance of the material guide mechanism. The camera is moved left and right by the drive of the translation drive device to take pictures of the products, so that the completeness and accuracy of the visual inspection can be ensured. The defective products are transported by the suction cup into the collecting container. The entire process is highly automated, which enables automatic production.

The above description is only an exemplary embodiment of the invention and is not intended to limit the patent claims.

Claims (7)

Visual defect inspection system, which comprises a conveying mechanism, a material guiding mechanism (1), a checking mechanism (2) and a sorting mechanism (5) for defective products, the conveying mechanism, the material guiding mechanism (1), the checking mechanism (2) and the sorting out mechanism (5) for defective products are arranged above a work table (3), the checking mechanism (2) being located above the material guiding mechanism (1), the sorting mechanism (5) for defective products being arranged downstream of the checking mechanism (2), wherein the inspection mechanism (2) comprises a CCD camera (21), a raising and lowering drive means for driving the CCD camera (21) to move up and down, and a translation drive means for driving the CCD camera (21) as one Movement in the horizontal direction, the raising and lowering drive means having a lifting plate (22), a handle (23) and guide plates (24) on the two sides of the lifting plate (22), the lower ends of the guide plates (24) on the work table (3), the upper ends of the guide plates (24) being connected to a connecting plate (25), the handle (23) being connected to a threaded rod (26), the threaded rod (26) being connected to the connecting plate (24 ) is passed through and screwed to the lifting plate (22), wherein two material guide mechanisms (10) 1 are provided which are located on the left and right side of a product, the material guide mechanism (1) comprising a material guide plate (11), a connecting rod (12) and a guide rod (13), wherein a plurality of guide rollers ( 14) are arranged along the conveying direction of the product on the material guide plate (11), a limiting head (121) being provided at one end of the connecting rod (12), the connecting rod (12) being passed through the mounting plate (15) at the other end and is connected to the material guide plate (11), wherein the mounting plate (15) is attached to the work table (3), the guide rod (13) being attached to the material guide plate (11) and the other end of the guide rod (13) through the mounting plate ( 15) is passed, a spring (16) being placed around the guide rod (13), the spring (16) between the material guide plate (11) and un d of the mounting plate (15), and wherein the defective product sorting mechanism (5) comprises a suction cup (51), a lift cylinder (52) which can raise and lower the suction cup (51), and a translation drive motor (53) which can move the suction cup (51) horizontally wherein the suction cup (51) is attached to the lifting cylinder (52), wherein the lifting cylinder (52) is attached to a slide (54), wherein the slide (54) is screwed to a second threaded rod (55), the second threaded rod (55) is connected to the translational drive motor (53), the translational drive motor (53) being fastened to a holder (56), the holder (56) being fastened to the work table (3). Visual defect inspection system according to Claim 1 , characterized in that the translation drive device comprises a mounting rod (27) and a translation cylinder (28), the CCD camera (21) being connected to the translation cylinder (28), the translation cylinder (28) being mounted on the mounting rod (27) wherein the mounting rod is attached to a support plate (29), and wherein the support plate (29) is attached to the lifting plate (22). Visual defect inspection system according to Claim 1 , characterized in that the material guide plate (11) has a guide section (111), the guide section (111) gradually inclining towards the center of the work table (3) along the conveying direction of the products. Visual defect inspection system according to Claim 1 , characterized in that the conveyor mechanism includes a plurality of conveyor rollers (4). Visual defect inspection system according to Claim 1 , characterized in that the material guide plate (11) has a mounting recess (112), the guide rollers (14) being arranged in the mounting recess (112) and protruding from the mounting recess (112). Visual defect inspection system according to Claim 1 , characterized in that the work table (3) has a positioning hole for the threaded rod (26). Visual defect inspection system according to Claim 1 , characterized in that the work table (3) is provided with a collecting container (6) for defective products.

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