Sealing ring detection device

Abstract

The utility model discloses a sealing ring detection device, which belongs to the technical field of sealing rings and comprises a working table, a cavity is arranged in the working table, sliding blocks are arranged at two ends in the cavity in a sliding manner, a driving assembly for driving the two sliding blocks to move reversely is arranged in the cavity, a rotating shaft is rotatably arranged on the top surfaces of the sliding blocks, and the rotating shaft is connected with the working table. Moving grooves are formed in the two sides of the top face of the workbench. According to the sealing ring detection device, the driving assembly drives the two sliding blocks to be far away from each other, the two rotating shafts are far away from each other, then the two mounting sleeves stretch the sealing ring, the motor drives one of the rotating shafts and the mounting sleeves to rotate, then the sealing ring is rotated, and the laser assembly is matched with the two machine vision assemblies in the middle of the workbench, so that the sealing ring is detected. Compared with an existing device, the device has the advantages that the problem that burrs and cracks of the soft transparent sealing ring are difficult to recognize is solved, the recognition success rate of the camera is increased, and the production and use quality of the sealing ring is further improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sealing ring technical field especially relates to a sealing ring detection device. BACKGROUND

[0002] Sealing ring, as indispensable sealing element in mechanical equipment, is widely used in many fields such as automobile, aerospace, petroleum chemical industry, machinery manufacturing, electronic appliances, medical equipment etc. Its main function is to prevent fluid (including gas and liquid) from leaking from one part of the device to another part, or from the inside of the device to the outside environment, so as to ensure the normal operation and safety of the device.

[0003] Due to limited production conditions, part of the sealing ring will produce defects on it during production, and slight defects will affect the appearance, and serious defects will affect the use. The surface burrs, cracks and other defects of the sealing ring should be detected during production and use.

[0004] The existing detection means for sealing ring is mostly identified by camera, but since part of the sealing ring is soft and transparent, the burrs and cracks on it are difficult to identify, and the identification failure rate of the camera is high, which affects the quality of sealing ring production and use.

[0005] Therefore, we propose a sealing ring detection device to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the problem that soft and transparent sealing ring defects are difficult to identify in the prior art, and proposes a sealing ring detection device.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A sealing ring detection device, comprising a workbench, a cavity is arranged in the workbench, two sliding blocks are arranged at both ends of the cavity, a driving assembly is arranged in the cavity to drive the two sliding blocks to move in opposite directions, a rotating shaft is rotatably arranged on the top surface of the sliding block, a moving groove is formed in the top surface of the workbench on both sides, a mounting sleeve is fixedly connected to the top end of the rotating shaft, and a first motor is fixedly connected to the bottom surface of one of the sliding blocks to drive the rotating shaft to rotate.

[0009] The top surface of the workbench is fixedly connected with a mounting plate, the mounting plate is fixedly connected with a laser assembly on the side, and the top and bottom of the mounting plate are fixedly connected with opposite machine vision assemblies.

[0010] Preferably, the driving assembly comprises a lead screw rotatably arranged in the cavity, and the two sliding blocks are threadedly connected to the two ends of the lead screw respectively, and a second motor is fixedly connected to one side of the workbench to drive the lead screw to rotate.

[0011] Preferably, the threads at both ends of the lead screw are equidistant and opposite.

[0012] Preferably, the bottom surface of the mounting sleeve is attached to the top surface of the workbench.

[0013] Preferably, a plurality of anti-skid strips are fixedly arranged on the circumferential surface of the side surface of the mounting sleeve.

[0014] Preferably, the mounting plate is C-shaped, the laser assembly is fixedly installed on the side wall of the mounting plate, and the two machine vision assemblies are respectively installed on the top wall and the bottom wall of the mounting plate.

[0015] Preferably, a working groove is formed in the top surface of the bottom wall of the mounting plate, and one of the machine vision assemblies is located at the bottom of the working groove.

[0016] In summary, the technical effects and advantages of the sealing ring detection device are as follows: the two sliding blocks are driven away from each other by the driving assembly, the two rotating shafts are driven away from each other, the two mounting sleeves stretch the sealing ring, one of the rotating shafts and the mounting sleeve are rotated by the motor, the sealing ring is rotated, the sealing ring is detected by the laser assembly and the two machine vision assemblies in the middle of the workbench, compared with the existing device, the problem that burrs and cracks of the soft transparent sealing ring are difficult to identify is avoided, the identification success rate of the camera is improved, and the quality of the sealing ring production and use is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the utility model;

[0018] Figure 2 is a sectional structural schematic view of the utility model at the rotating shaft;

[0019] Figure 3 is a top view of the utility model;

[0020] Figure 4 is a sectional top view of the utility model.

[0021] In the figure: 1, workbench; 2, cavity; 3, sliding block; 4, rotating shaft; 5, moving groove; 6, mounting sleeve; 7, first motor; 8, mounting plate; 9, laser assembly; 10, machine vision assembly; 11, lead screw; 12, second motor; 13, anti-skid strip; 14, working groove. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0023] Reference Figures 1-3The utility model provides a sealing ring detection device, including workbench 1, be equipped with cavity 2 inside workbench 1, the both ends sliding of cavity 2 are equipped with sliding block 3, be equipped with the drive assembly of driving two sliding block 3 reverse movement in cavity 2.

[0024] Workbench 1 top middle part fixedly connected with mounting plate 8, mounting plate 8 side surface horizontal fixed mounting has laser assembly 9, mounting plate 8 top and bottom are fixedly installed with the machine vision assembly 10 of facing each other.Laser assembly 9 and machine vision assembly 10 are prior art, and laser assembly 9 includes the laser of emitting visible laser, and machine vision assembly 10 includes identification camera.Although camera is easy to be damaged by high-energy laser, but since laser assembly 9 is located on the side and irradiates the sealing ring horizontally, and machine vision assembly 10 is located on the upper and lower sides, only a small part of laser enters the camera during normal use, and no substantial damage occurs.

[0025] Refer to Figures 1-3 The sealing ring detection device, when in use, first, the sealing ring to be detected is sleeved outside the two mounting sleeves 6, and the bottom surface of the sealing ring is attached to the top surface of the workbench 1. At this time, the drive assembly drives the two sliding blocks 3 to move in opposite directions, and the rotating shafts 4 on the sliding blocks 3 and the mounting sleeves 6 move accordingly, and the sealing ring is stretched. After completion, turn on the laser assembly 9 and the machine vision assembly 10. Due to the effect of stretching, burrs and cracks on the sealing ring are more easily identified by the machine vision assembly 10. At the same time, the laser assembly 9 irradiates the side surface of the sealing ring. Since laser has good coherence, when the laser does not encounter burrs and cracks, the light beam will pass through the sealing ring relatively parallelly; when the laser encounters burrs and cracks, refraction and diffraction will occur at the defects, facilitating the identification of the machine vision assembly 10.

[0026] When identifying, turn on the first motor 7 and drive one of the rotating shafts 4 to rotate, and the mounting sleeve 6 on the rotating shaft 4 drives the sealing ring to rotate until the sealing ring rotates one revolution, and the machine vision assembly 10 completes the detection of the sealing ring.

[0027] Refer to Figure 4 The drive assembly includes a lead screw 11 rotatably arranged in the cavity 2, and the two sliding blocks 3 are threadedly sleeved on both ends of the lead screw 11. A second motor 12 is fixedly installed on one side of the workbench 1 to drive the lead screw 11 to rotate. The drive assembly drives the lead screw 11 to rotate through the second motor 12, and the two sliding blocks 3 move in opposite directions accordingly. In order to make the two sliding blocks 3 move equal distances in opposite directions when the lead screw 11 rotates, the threads on both ends of the lead screw 11 are equidistant and opposite.

[0028] Refer to Figures 1-3The bottom surface of the mounting sleeve 6 is attached to the top surface of the workbench 1, so as to avoid the sealing ring from being clamped in the gap between the workbench 1 and the mounting sleeve 6 when the sealing ring is placed, and improve the stability of the device.

[0029] In order to increase the friction between the sealing ring and the mounting sleeve 6 and avoid slipping, a plurality of anti-skid strips 13 are fixedly arranged on the side surface of the mounting sleeve 6 in an array, so as to improve the stability of the device.

[0030] The mounting plate 8 is in a C shape, the laser assembly 9 is fixedly installed on the side wall of the mounting plate 8, and the two machine vision assemblies 10 are respectively installed on the top wall and the bottom wall of the mounting plate 8, so as to simultaneously identify the top surface and the bottom surface of the sealing ring and improve the identification efficiency.

[0031] Since the bottom surface of the sealing ring is attached to the top surface of the workbench 1 when the sealing ring is placed, and the machine vision assembly 10 needs a distance for focusing, the bottom wall of the mounting plate 8 is provided with a working groove 14 on the top surface, and one of the machine vision assemblies 10 is located at the bottom of the working groove 14 to leave space for focusing; in addition, the two sides of the working groove 14 can be inclined, so as to improve the light entering angle range of the machine vision assembly 10, thereby improving the stability of the machine vision identification.

[0032] The above is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, and all of them should be covered in the protection scope of the present application.

Claims

1. A sealing ring detection device comprising a worktable (1), characterized in that, The workbench (1) is internally provided with a cavity (2), the cavity (2) is provided with a sliding block (3) at both ends, the cavity (2) is provided with a driving assembly for driving the two sliding blocks (3) to move in opposite directions, the sliding block (3) is provided with a rotating shaft (4) on the top surface, the workbench (1) is provided with a moving groove (5) on both sides of the top surface, the rotating shaft (4) is fixedly provided with a mounting sleeve (6) on the top end, one of the sliding blocks (3) is fixedly provided with a first motor (7) for driving the rotating shaft (4) to rotate; The workbench (1) is fixedly connected with a mounting plate (8) on the top surface, the mounting plate (8) is fixedly provided with a laser assembly (9) on the side surface, and the mounting plate (8) is fixedly provided with opposite machine vision assemblies (10) on the top and bottom.

2. The sealing ring detection device of claim 1, wherein The driving assembly comprises a lead screw (11) rotatably arranged in the cavity (2), and the two sliding blocks (3) are threadedly sleeved on both ends of the lead screw (11), and the workbench (1) is fixedly provided with a second motor (12) for driving the lead screw (11) to rotate.

3. The sealing ring detection device of claim 2, wherein The threads on both ends of the lead screw (11) are equidistant and opposite.

4. The sealing ring detection device of claim 1, wherein The bottom surface of the mounting sleeve (6) is attached to the top surface of the workbench (1).

5. The seal detection apparatus of claim 4, wherein A plurality of anti-skid strips (13) are fixedly arranged on the side surface of the mounting sleeve (6).

6. The sealing ring detection device of claim 1, wherein The mounting plate (8) is C-shaped, the laser assembly (9) is fixedly installed on the side wall of the mounting plate (8), and the two machine vision assemblies (10) are respectively installed on the top wall and the bottom wall of the mounting plate (8).

7. The seal detection apparatus of claim 6, wherein The bottom wall of the mounting plate (8) is provided with a working groove (14) on the top surface, and one of the machine vision assemblies (10) is located at the bottom of the working groove (14).

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