JPS638509A - Orientation detecting apparatus for article with through-hole - Google Patents

Abstract

PURPOSE:To detect easily and accurately an abnormal posture of an article perforated with a through-hole, by detecting transmissivity of an irradiate beam of light from a light-source by a through-hole of an article for judgement of a normal or abnormal postured of the article. CONSTITUTION:An article 2 is delivered to a product receiver 4 from a charge chute 1. And a beam 4 light irradiated from a light flashing apparatus 22 is detected for its arrival at a light-receiving apparatus 23. In this case, if the article 2 assumes a proper posture, namely, if a through-hole 2a of the article 2 is aligned with a straightening axes 5, 6, the beam of light from the apparatus 22 arrives at the apparatus 23 after passing through the through-hole 2a of the article 2 and consequently, the proper posture of the article 2 is detected. Later, each straightening rod 5 and 6 is displaced to the product receiver side 4 by operating swing arms 15, 16. By this arrangement, ends of the straightening rods 5, 6 are brought to contact with a surface 2b on the inside taper of the article 2 for straightening.

Description

DETAILED DESCRIPTION OF THE INVENTION [ClLl Industrial Field] The present invention relates to an orientation detection device for detecting whether an article having a through hole is in a normal posture.

[Conventional technology]

For example, in order to straighten the inner peripheral surface of a cylindrical sintered oil-impregnated bearing that has a through hole in the center, when inserting a straightening frame from both ends of the through hole of the oil-impregnated bearing, the through hole and the straightening frame It is necessary to match the axes of the

For this reason, it is necessary to set the oil-impregnated bearings in the straightening device with their posture aligned in a certain direction, but when many types of oil-impregnated bearings are sent to the straightening device using one conveyance device, It is difficult to set the posture of each oil-impregnated bearing in the correct position, and there is a risk that the orientation will deviate. In particular, in a bearing whose outer peripheral surface is formed into a spherical shape, it is easy to determine the orientation.

[Problem that the invention seeks to solve]

Then, when the posture of the oil-impregnated bearing has been photographed in this way, when trying to correct its inner peripheral surface with the correction frame,
Rigging) If the deviation of the posture of the Ill bearing is small, the correction frame is inserted into the through hole of the oil-impregnated bearing while correcting the posture of the oil-impregnated bearing, but if the deviation of the posture is large, the correction frame is inserted into the through-hole of the oil-impregnated bearing. There is a risk that the bearing may be damaged or the correction device may malfunction. Therefore, before making corrections,
It is desired to develop a device that can easily confirm whether or not an oil-impregnated bearing is in a normal position.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an orientation detection device that can easily and reliably detect an abnormality in the posture of an article having a through hole.

[Means for solving problems]

In order to achieve the above object, the present invention provides a height that substantially coincides with the center line of the through hole on the side of the conveyance path in which the article is moving in a direction perpendicular to the center line of the through hole. The apparatus is equipped with a light emitting device that emits light in a direction across the conveyance path, and a light receiver that detects whether the article is in a normal posture by detecting the emitted light.

[For production]

In the apparatus for detecting the orientation of an article having a through hole according to the present invention, the light receiver detects whether the light emitted from the light emitter passes through the through hole of the article, and determines whether the orientation of the article is normal. Detect.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on FIGS. 1 and 2.

FIG. 1 is an explanatory diagram illustrating the principle of a direction detection device according to an embodiment of the present invention, and FIG. 2 is an external view showing an example of a correction device incorporating the direction detection device of the present invention. In these figures, reference numeral 1 denotes a charge chute for supplying an article (oil-impregnated bearing) 2 having a through hole 2 a in the center, and this charge chute 2 is arranged above a base 3 . A product receiver section 4 is connected below the charge chute 2. This product receiving part 4 is for stopping the L article 2 at a predetermined position, and both sides of the product receiving part 4 are open.
A pair of correction frames 5 and 6 are each installed horizontally.

These correction frames 5 and 6 have tapered tip portions, and are adapted to correct the inner circumferential curved surface 2b of the article 2. Also,
These correction frames 5, 6 are each movably supported by a pair of support members 7, 8, 9, 10 installed on the base 3, and the tips of each correction frame 5, 6 are Insertion member 1
1.12. Furthermore, receiving plates 13 and 14 fixed to the intermediate portions of each of the correction frames 5 and 6, respectively.
The upper ends of swing arms 15 and 16, which are provided to be swingable in the left-right direction by cam drive, are in contact with the upper ends of the swing arms 15 and 16, and the fixed plates 17 are respectively attached to the base ends of the correction frames 5 and 6. .18 and the support members 7, 1o are mounted springs 19.20 which pull each correction frame 5.6 away from the product receiver part 4.

The action of these swing arms 15, 16 and springs 19, 20 allows each correction frame 5.6 to move in the left-right direction. Furthermore, a discharge chute 21 is disposed below the product receiving section 4.

Furthermore, a light emitter 22 and a light receiver 23 that receives light emitted from the light emitter 22 are attached to the center of the tip of each of the correction frames 5.6. Electrical wiring 24 and 25 from the light emitter 22 and the light receiver 23 are disposed through the inside of each correction frame 5, 6.

Next, a case will be described in which the inner circumferential tapered surface 2b of the oil-impregnated bearing 2 is corrected using a correction device incorporating the orientation detection device configured as described above.

First, the article 2 is supplied from the charge chute 1 to the product receiving section 4. Then, the light emitted by the emitter 22 is transmitted to the receiver 2.
It is detected whether or not the number reaches 3.

In this case, if the article 2 is in a normal posture, that is, in a posture where the through hole 2a of the article 2 and the axis of each correction frame 5, 6 are aligned, the light from the light emitter 22 will be transmitted to the article 2. Through hole 2a
It passes through °C1 and reaches the optical receiver 23, so the optical receiver 2
3, it is detected that the article 2 is in a normal posture.

In this way, after it is confirmed that the article F is in the normal position, each swing arm 15, 16 is actuated,
Each of the correction bodies 5 and 6 is moved to the product receiver section 4 side. As a result, the tips of the correction frames 5 and 6 come into contact with the inner circumferential tapered surface 2b of the article 2, and both inner circumferential tapered surfaces 2b are corrected. When the correction operation is completed, the right swing arm 16 is swung to the right, the right correction frame 6 is moved backward by the action of the spring 20, and the left correction frame 5 is moved back by the left swing arm 15. The article 1 is pushed out to the right by the correction frame 5 using a forward spoon. As a result, the article 2 is removed from the product receiving section 4 and delivered to the discharge chute 21.

In addition, if the posture of the article 2 supplied to the product receiver section 4 is shifted, the light from the light emitter 22 will be blocked by the article 2 and will not reach the light receiver 23 side. Abnormal postures are easily and reliably detected. Therefore, by performing operations such as correcting the posture of the article 2 in step 1, the straightening operation can be continued smoothly, and damage to the article 2 or malfunction of the straightening device will not occur.

Note that in this embodiment, a configuration has been described in which the light emitter 22 is provided on the correction frame 5 side and the light receiver 23 is provided on the correction frame 6 side, but light emission! 522.23 may be arranged in reverse. Also,
The light emitter 22 and the light receiver 23 may be arranged on the - side of the correction frame 5.6, and the anti-11Flti may be arranged on the other side.

〔Effect of the invention〕

As explained above, according to the present invention, there is a height that substantially coincides with the center line of the through hole on the side of the conveyance path in which the article is moving in a direction perpendicular to the center line of the through hole. The light emitting device is equipped with a light emitting device that emits light in a direction across the conveyance path, and a light receiver that detects whether the article is in a normal posture by detecting the emitted light. By using a light receiver to detect whether the irradiated light passes through the through-hole of the article and detecting whether the posture of the article is normal or not, it is possible to easily and reliably detect abnormalities in the posture of articles that have through-holes. It has the excellent effect that the b structure can be detected by B alone and is easy to manufacture.

[Brief explanation of drawings]

Figures 1 and 2 show one embodiment of the present invention.
The figure is a schematic explanatory diagram of the orientation detection device, and FIG. 2 is a schematic front view of the correction device. 1... Ch17-DISYKOTE, 2... Goods (oil-impregnated bearing), 4... Product holder, 21... Discharge chute, 22... ... Light emitter, 23 ... Light receiver, 2a ... Through hole.

Claims (1)

[Claims] At a height that substantially coincides with the center line of the through hole, on the side of the stopping position of the article in the conveyance path where the article having the through hole is moving in a direction perpendicular to the center line of the through hole, A light emitter that emits light in a direction across the conveyance path and a light receiver that detects whether the article is in a normal posture by detecting the emitted light are installed. A device for detecting the orientation of an article having a through hole.