JP2019012033A - Component inspection device - Google Patents

Abstract

To provide a component inspection device capable of inspecting bottom faces of components to be inspected while continuously carrying the components in an upright state.SOLUTION: A component inspection device includes: a rotary disk 3 in which a plurality of slits that a component W to be inspected can enter are formed in an outer peripheral part; a floor part 5 that is disposed in a lower portion of the rotary disk and includes a conveyance surface for placing the component to be inspected entering the slits; imaging means for imaging a bottom face of a component to be inspected; a movable floor part 11 that is provided in connection with the floor part and hence transfers the component to be inspected to be conveyed along the conveyance surface of the floor part following intermittent rotation of the rotary disk, and travels to a position not intercepting the bottom face when the imaging means images the bottom face of the component to be inspected; and pressing means 12 for pressing the component to be inspected to the rotary disk side when the imaging means images the bottom face of the component to be inspected.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a component inspection apparatus that inspects the appearance of a component to be inspected placed on a conveyance surface while sequentially conveying the component to be inspected.

  Conventionally, as an apparatus for inspecting the appearance while sequentially conveying parts to be inspected, there is one disclosed in Patent Document 1. This component flaw inspection device inspects a nut as an example of a component to be inspected, and has a rotating disk in which a plurality of storage grooves capable of storing nuts are formed on the outer peripheral portion. In addition, a guide plate is disposed below the rotating disk, and the nut stored in the storage groove is placed on the conveyance surface of the guide plate. For this reason, the nut stored in the storage groove of the rotating disk is transported along the transport surface of the guide plate along with the intermittent rotation of the rotating disk. Images are taken and these parts are inspected for scratches, dimensions, and the like.

JP 2011-237441 A

  However, in the component inspection flaw inspection apparatus, the part where the inspected part is in contact with the conveying surface of the guide plate (the bottom surface of the inspected part) is blocked by the guide plate. It had a problem that it could not be imaged and inspected.

  The present invention has been made in view of the above problems, and provides a component inspection apparatus capable of inspecting the bottom surface of a component to be inspected placed on a conveyance surface while continuously conveying the component to be inspected. For the purpose.

  A rotating disk in which a plurality of slits into which the part to be inspected can be inserted are formed on the outer peripheral part, a floor having a conveying surface on which the part to be inspected placed on the lower part of the rotating disk is placed, and the part to be inspected The image pickup means for picking up the bottom surface of the image pickup device and the part to be inspected conveyed along the transfer surface of the floor portion along with the intermittent rotation of the rotary disk by being connected to the floor portion, When imaging the bottom surface of the part to be inspected, a movable floor that moves to a position that does not block the bottom surface, and when the imaging means images the bottom surface of the part to be inspected, press the part to be inspected toward the rotating disk. And a pressing means for performing the inspection.

  When the imaging means images the bottom surface of the part to be inspected, it is preferable that the movable floor portion is operated after the pressing means is operated.

  According to the present invention, the movable floor moves to a position that does not block the bottom surface of the part to be inspected, so that the bottom surface of the part to be inspected can be imaged with the imaging camera. In order to prevent the falling, it is possible to provide a component inspection apparatus capable of inspecting the bottom surface of the component to be inspected while the component to be inspected is placed on the conveyance surface and continuously conveyed.

The top view which shows the whole structure of the components inspection apparatus which is this invention. The principal part enlarged plan view which shows operation | movement of the components inspection apparatus which is this invention. The principal part expanded sectional view which shows operation | movement of the components inspection apparatus which is this invention. The principal part enlarged plan view which shows operation | movement of the components inspection apparatus which is this invention. The principal part expanded sectional view which shows operation | movement of the components inspection apparatus which is this invention.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a component inspection device, and a component to be inspected is a rod-shaped component W that does not have a head and a collar. A base plate 2 is attached to a base (not shown) of the component inspection apparatus, and the base plate 2 is rotated in the circumferential direction in the direction of arrow A as a motor (not shown) is driven. A disk 3 is placed.

  A plurality of U-shaped slits 4 are provided on the outer peripheral edge of the rotating disk 3 for each predetermined division angle. In addition, a component supply feeder (not shown) is connected to the rotary disk 3 so as to sequentially supply rod-shaped components to the slit 4 at the point B. The slit 4 has a shape with an open top and bottom.

  A floor portion 5 is disposed below the rotating disk 3 so as to close the bottom of the slit 4. For this reason, the rod-shaped component supplied to the slit 4 is stored in the slit 4 in a state of being erected on the floor 5, and is conveyed while sliding on the conveyance surface 5 a of the floor 5 as the rotating disk 3 rotates. The In addition, since the rotary disk 3 is composed of thin plates 3a and 3b arranged in parallel at a predetermined interval in the vertical direction, the slit 4 is configured to support the side surface of the rod-shaped component in the vertical direction.

  Further, a guide member 6 is provided along the outer peripheral surface of the rotary disk 3 so that the rod-shaped component housed in the slit 4 does not fall from the slit 4.

  The inspection unit 10 shown in FIGS. 2 to 5 is arranged at a position rotated by a predetermined distance from the point B. The inspection unit 10 includes a movable floor 11, a pressing member 12 that is an example of a pressing unit, and a CCD camera 13 that is an example of an imaging unit.

  The movable floor 11 is connected to the floor 5 and is configured to reciprocate in the direction of arrow C by driving the air cylinder 14.

  The pressing member 12 is disposed at a height at which the side surface of the bar-shaped part can be pressed from the lateral direction to the center side of the rotating disk 3 at the tip, and is configured to reciprocate in the direction of arrow D by driving the air cylinder 15. Has been.

  Below the movable floor 11, a mirror 16 is disposed at a predetermined angle and is configured to project the bottom surface of the bar-shaped part that has reached point C. A projector (not shown) is preferably disposed between the movable floor 11 and the mirror 16.

  In addition, a CCD camera 13 is disposed at a position where the bottom surface of the rod-shaped part projected on the mirror 16 can be imaged. It is configured to perform pass / fail determination.

  As shown in FIG. 1, a floor portion 5 connected to the movable floor portion 11 is provided from the point where the inspection unit 10 is arranged to the point E and the point F. Is transported while sliding on the transport surface 5 a of the floor 5.

  In addition, a defective product discharging means (not shown) is disposed at the point E, and the guide member 6 is not provided. With this configuration, the bar-shaped part determined to be defective is directed outward by the defective product discharging means. Is discharged.

  Further, the guide part 6 and the floor part 5 are not provided at the point F shown in FIG. 1, and the bar-shaped part determined to be a non-defective product by the CCD camera 13 falls at this point.

  Hereinafter, the operation of the component inspection apparatus 1 will be described. The rotating disk 3 configured to be intermittently rotatable by driving the motor temporarily stops every time the slit 4 reaches the point B, and sequentially stores the rod-shaped parts supplied from the part supply feeder in the slit 4 for rotation. Along with this, the conveyance surface of the floor portion 5 is conveyed to the inspection unit 10 while sliding.

  Subsequently, since the upper surface of the movable floor portion 11 is provided on the same plane as the conveying surface of the floor portion 5, the bar-shaped parts are moved from the floor portion 5 to the movable floor portion 11 as the rotating disk 3 rotates. The rotating disk 3 is temporarily stopped here. At this time, as shown in FIGS. 2 and 3, the pressing member 12 is retracted and is in a position where it does not press the bar-shaped component.

  Subsequently, when the CCD camera 13 captures an image of the bar-shaped part, as shown in FIGS. 4 and 5, the pressing member 12 moves forward to a position where the side surface of the bar-shaped part is pressed by driving the air cylinder 15. Then, the movable floor portion 11 is retracted by driving the air cylinder 14, and the bottom surface of the bar-shaped part is exposed. For this reason, the bottom surface of the rod-shaped part is projected on the mirror 16, and this is imaged by the CCD camera for image processing.

  When the above inspection is completed, the pressing member 12 moves backward again, and the movable floor portion 11 moves forward again and returns to the position shown in FIGS.

  Subsequently, the rotating disk 3 starts to rotate and conveys it to the point E while sliding the bottom surface of the bar-shaped part on the floor 5. At this time, those determined as defective by the above inspection are discharged at point E.

  On the other hand, the bar-shaped part determined to be non-defective is transported to the point F without being discharged at the point E, and is collected here.

  According to the component inspection apparatus, the inspection unit 10 can be imaged by the CCD camera 13 when the movable floor portion 11 moves to a position where the bottom surface of the rod-shaped component is not blocked, and at this time, the pressing member 12 is rod-shaped. Provided is a component inspection device that can inspect a bottom surface of a mechanism that continuously conveys a rod-shaped component in a state of being erected by a rotating disk 3 while being configured to prevent the component from falling. Can do.

DESCRIPTION OF SYMBOLS 1 Parts inspection apparatus 2 Pace plate 3 Rotating disk 3a, 3b Thin plate 4 Slit 5 Floor part 6 Guide member 10 Inspection unit 11 Movable floor part 12 Holding member 13 CCD camera 14, 15 Air cylinder 16 Mirror W Rod-shaped part

Claims (2)

A rotating disk in which a plurality of slits into which the part to be inspected can be inserted are formed on the outer periphery;
A floor portion disposed at the bottom of the rotating disk and having a conveying surface on which the inspected part that has entered the slit is placed;
Imaging means for imaging the bottom surface of the part to be inspected;
When the part to be inspected that is transported along the transport surface of the floor part is transferred along with the intermittent rotation of the rotary disk by being connected to the floor part, the imaging means images the bottom surface of the part to be inspected. Includes a movable floor portion that moves to a position that does not block the bottom surface;
When the imaging means images the bottom surface of the part to be inspected, a pressing means for pressing the part to be inspected to the rotating disk side;
A component inspection device comprising: The component inspection apparatus according to claim 1, wherein when the imaging unit images the bottom surface of the component to be inspected, the movable floor portion operates after the pressing unit operates.

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