CN113008548A

CN113008548A - Method for detecting defects of sealing ring

Info

Publication number: CN113008548A
Application number: CN202110279191.XA
Authority: CN
Inventors: 夏小波
Original assignee: Xiamen Huyiming Electronic Industry Co ltd
Current assignee: Xiamen Huyiming Electronic Industry Co ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-06-22

Abstract

The invention relates to the technical field of production and inspection of sealing rings, in particular to a method for detecting defects of a sealing ring, which comprises the steps of S1, flatly placing a detection base, and then placing a sealing ring to be detected at a detection port of the detection base; s2, pressing down switches on the upper side and the lower side respectively to adjust the positioning seats on the two sides to the positions in contact with the sealing ring, wherein the standard is that the end part of the movable pin is exposed out of the positioning seats by 2 cm; s3, pressing a button, starting a device, manually rotating a sealing ring in situ, detecting whether the surface of the sealing ring is short of materials or has a plurality of materials, when a problem occurs, the movable pin moves up and down, at the moment, an indicator light flickers, otherwise, the indicator light flickers, namely, if the indicator light flickers, the sealing ring has a defect. The surface of the sealing ring is detected by designing the detection base so as to judge whether the surface of the sealing ring has the problem of more materials or less materials, and the detection quality and the detection efficiency can be effectively improved.

Description

Method for detecting defects of sealing ring

Technical Field

The invention relates to the technical field of production and inspection of sealing rings, in particular to a method for detecting defects of a sealing ring.

Background

The selection of the material of the sealing ring has important significance on the sealing performance and the service life of the sealing ring, and the performance of the material directly influences the use performance of the sealing ring. Common seal ring types include NBR nitrile rubber seal rings, HNBR hydrogenated nitrile rubber seal rings, SIL silicone rubber seal rings, FLS fluorosilicone rubber seal rings, CR neoprene seal rings, and the like.

In the production process of the sealing ring, due to improper factors in the injection molding process, the sealing ring is made to have a phenomenon of more material or less material, so that the quality of a finished sealing ring product is influenced, and therefore, a method for detecting the defects of the sealing ring is provided for solving the problems.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a method for detecting the defects of a sealing ring.

The utility model provides a detect device of sealing washer defect, includes and detects the base, it has seted up the detection mouth on the detection base, the both sides of detecting the mouth all are equipped with the positioning seat through electric putter activity, seted up the cavity in the positioning seat, be equipped with the multiunit activity round pin through the spring activity in the cavity, all welded the slider on the both sides lateral wall of activity round pin, the slider slides on the guide arm, the guide arm welding is between the inner wall of cavity, and the upper surface of slider has inlayed photosensitive diode, and the position relative with photosensitive diode has inlayed emitting diode on the inner wall of cavity.

Preferably, the detection base is provided with two switches, an indicator light and a button.

Preferably, the positioning seat is of a U-shaped structure, and the side wall of the positioning seat is connected and fixed with the movable end of the electric push rod.

Preferably, one end of the movable pin is arranged in a pointed shape and is of a spherical structure.

Preferably, the indicator light is electrically connected with the photosensitive diode, and the button is also electrically connected with the light emitting diode.

A method for detecting the defects of a sealing ring comprises the following steps:

s1, horizontally placing the detection base, and then placing the sealing ring to be detected at the detection opening of the detection base;

s2, pressing down switches on the upper side and the lower side respectively to adjust the positioning seats on the two sides to the positions in contact with the sealing ring, wherein the standard is that the end part of the movable pin is exposed out of the positioning seats by 2 cm;

s3, pressing a button, starting a device, manually rotating a sealing ring in situ, detecting whether the surface of the sealing ring is short of materials or has a plurality of materials, when a problem occurs, the movable pin moves up and down, at the moment, an indicator light flickers, otherwise, the indicator light flickers, namely, if the indicator light flickers, the sealing ring has a defect.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the group of detection bases is designed, the sealing ring is arranged in the detection bases, the positioning bases are positioned by contacting the positioning bases with the sealing ring, and then workers rotate the sealing ring, so that the movable pins continuously detect the surface of the sealing ring to judge whether the surface of the sealing ring has the problem of excessive material or insufficient material, and the detection quality and the detection efficiency can be effectively improved.

Drawings

FIG. 1 is a schematic structural diagram of a detection base used in a method for detecting defects of a seal ring according to the present invention;

FIG. 2 is a schematic view of the positioning socket and the inner movable pin thereof shown in FIG. 1;

fig. 3 is an enlarged structural diagram of a part a in fig. 2.

In the figure: the device comprises a detection base 1, a switch 11, an indicator light 12, a button 13, a sealing ring 2, a positioning seat 3, a guide rod 31, a movable pin 4, a sliding block 41, a light-emitting diode 5 and a photosensitive diode 6.

Detailed Description

The present invention will be further illustrated with reference to the following specific examples.

Referring to fig. 1-3, a device for detecting defects of a sealing ring, comprising a detection base 1, wherein the detection base 1 is provided with a detection port, two sides of the detection port are both movably provided with a positioning seat 3 through an electric push rod for positioning a sealing ring 2, the positioning seat 3 is in a U-shaped structure, the side wall of the positioning seat 3 is connected and fixed with the movable end of the electric push rod, a cavity is arranged in the positioning seat 3, a plurality of groups of movable pins 4 are movably arranged in the cavity through springs for judging whether bulges or grooves exist on the surface of the sealing ring 2, the bottom end of each movable pin 4 is in a pointed shape and is in a spherical structure, sliding blocks 41 are welded on the side walls of two sides of each movable pin 4 for determining the signal receiving time between a photosensitive diode 6 and a light emitting diode 5, each sliding block 41 slides on a guide rod 31, the guide rod 31 is welded between the, and the upper surface of the slider 41 is embedded with a photodiode 6, and a light emitting diode 5 is embedded on the inner wall of the cavity at a position opposite to the photodiode 6.

The detection base 1 is provided with two switches 11, an indicator light 12 and a button 13, the indicator light 12 is electrically connected with the photosensitive diode 6, and the button 13 is also electrically connected with the light emitting diode 5.

s1, horizontally placing the detection base 1, and then placing the sealing ring 2 to be detected at the detection opening of the detection base 1;

s2, pressing down the switches 11 on the upper and lower sides respectively to adjust the positioning seats 3 on both sides to the position contacting with the sealing ring 2, based on the end of the movable pin 4 exposing 2cm outside the positioning seat 3;

s3, pressing the button 13, starting the device, manually rotating the sealing ring 2 in situ, detecting whether the surface of the sealing ring has the condition of material shortage or excessive material, when a problem occurs, the movable pin 4 moves up and down, at the moment, the indicator lamp 12 flickers, otherwise, the indicator lamp 12 does not flick, namely, if the indicator lamp 12 flickers, the sealing ring 2 has a defect.

In this embodiment:

firstly, horizontally placing a detection base 1, then placing a sealing ring 2 to be detected at a detection opening of the detection base 1, and enabling the sealing ring 2 to be positioned in the vertical direction of the detection opening;

then, the switches 11 on the upper side and the lower side are respectively pressed down, the electric push rods on the two sides are started, so that the electric push rods drive the positioning seats 3 to move and adjust, the switches 11 are released to stop after the electric push rods are adjusted to the position in contact with the sealing rings 2, when the two groups of electric push rods stop, the sealing rings 2 are clamped between the positioning seats 3 on the two sides, and the end parts of the movable pins 4 are exposed out of the positioning seats 3 by 2 cm;

then, press button 13, starting device, manual pivot rotation sealing washer 2 detects whether there is the condition of lacking material or many materials to its surface, and when the problem appeared, the condition that movable pin 4 appeared and moved about, and this moment, pilot lamp 12 glimmered, otherwise, pilot lamp 12 does not glimmer, if pilot lamp 12 had appeared the scintillation, this sealing washer 2 had the defect.

In the process, when the problem of material shortage or material excess occurs, that is, a protrusion or a groove exists on the surface of the sealing ring 2, when the movable pin 4 passes through the protrusion position, the movable pin 4 moves into the positioning seat 3, at the moment, the time of receiving the signal of the light emitting diode 5 by the photosensitive diode 6 is shortened, when the movable pin 4 passes through the groove position, the movable pin 4 moves out of the positioning seat 3, at the moment, the time of receiving the signal of the light emitting diode 5 by the photosensitive diode 6 is prolonged, under the two conditions, the signal received by the photosensitive diode 6 fluctuates for a short time, so that the indicator lamp 12 is controlled to flicker through an electric signal, when the indicator lamp 12 flickers, the button 13 can be pressed down, the device is closed, the sealing ring 2 with the defect is taken down, and the detection of the next sealing ring 2 is continued.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a detect device of sealing washer defect, including detecting base (1), a serial communication port, it detects the mouth to have seted up on base (1), the both sides that detect the mouth all are equipped with positioning seat (3) through the electric putter activity, the cavity has been seted up in positioning seat (3), be equipped with multiunit movable pin (4) through the spring activity in the cavity, slider (41) have all been welded on the both sides lateral wall of movable pin (4), slider (41) slide on guide arm (31), guide arm (31) welding is between the inner wall of cavity, and photosensitive diode (6) have been inlayed to the upper surface of slider (41), position relative with photosensitive diode (6) has inlayed emitting diode (5) on the inner wall of cavity.

2. A device for detecting sealing ring defects according to claim 1, characterized in that two switches (11), an indicator light (12) and a button (13) are arranged on the detection base (1).

3. The device for detecting the defects of the sealing ring according to claim 1, wherein the positioning seat (3) is in a U-shaped structure, and the side wall of the positioning seat is fixedly connected with the movable end of the electric push rod.

4. The device for detecting the defects of the sealing ring according to claim 1, wherein one end of the movable pin (4) is arranged in a pointed shape and is of a spherical structure.

5. The device for detecting the defects of the sealing ring according to claim 2, wherein the indicator light (12) is electrically connected with the photosensitive diode (6), and the button (13) is electrically connected with the light emitting diode (5).

6. A method for detecting the defects of a sealing ring is characterized by comprising the following steps:

s1, horizontally placing the detection base (1), and then placing the sealing ring (2) to be detected at the detection opening of the detection base (1);

s2, pressing down the switches (11) on the upper side and the lower side respectively to adjust the positioning seats (3) on the two sides to the positions contacted with the sealing ring (2) by taking the end part of the movable pin (4) exposed out of the positioning seats (3) by 2cm as the standard;

s3, pressing a button (13), starting a device, manually rotating a sealing ring (2) in situ, detecting whether the surface of the sealing ring is short of materials or rich of materials, when a problem occurs, moving the movable pin (4) up and down, at the moment, the indicator lamp (12) flickers, otherwise, the indicator lamp (12) does not flicker, namely, if the indicator lamp (12) flickers, the sealing ring (2) has a defect.