Detection mechanism for efficiently detecting thickness of surface coating of flat washer

The detection mechanism combining ultrasonic probes and eddy current sensors solves the problems of slow coating thickness detection speed and high cost, and realizes efficient and accurate coating thickness detection and automatic sorting, thereby improving production efficiency and product quality.

CN223882946UActive Publication Date: 2026-02-06SHANGHAI SHANGDIAN WASHER CO LTD
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Patent Information

Application Number
CN202520665317.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-02-06
Estimated Expiration
2035-04-10

AI Technical Summary

Technical Problem

Existing methods for coating thickness detection suffer from problems such as slow detection speed, high cost, or impact on coating integrity, making it difficult to meet the needs of modern industrial production.

Method used

The detection mechanism, which combines an ultrasonic probe and an eddy current sensor, transports flat washers via a conveyor belt. A rotating rod drives the probe to rotate and detect the coating thickness. Gears and baffles separate qualified and unqualified products, and the system is automatically sorted by a controller.

Benefits of technology

It achieves efficient and accurate coating thickness detection, ensuring the accuracy of the detection data. At the same time, the automatic sorting function avoids the mixing of qualified and unqualified products, improving production efficiency and product quality consistency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a detection mechanism for efficiently detecting the thickness of a surface coating of a flat washer, and belongs to the field of coating thickness detection.The detection mechanism comprises a frame and a storage box, a conveying belt is fixedly installed on the inner side of the frame, two side plates are symmetrically and fixedly installed on the top of the frame, and a transverse plate is fixedly installed on the tops of the two side plates; the ultrasonic probe and the eddy current sensor are respectively responsible for measuring the thickness change of the flat washer and detecting the position of the metal matrix, so that the coating thickness can be detected, and the rotating rod rotates to drive the ultrasonic probe and the eddy current sensor to rotate, so that the coating thickness detection operation can be performed on different positions of the flat washer; and meanwhile, the lead screw rotates to drive the sliding block to slide up and down on the inner wall of the square groove, so that the heights of the ultrasonic probe and the eddy current sensor can be conveniently adjusted, and the flat washers with different thicknesses can be conveniently detected.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coating thickness detection, and particularly relates to a detection mechanism for efficiently detecting the coating thickness of a flat washer surface. BACKGROUND

[0002] Currently, in the mechanical processing industry, in order to improve the corrosion resistance and wear resistance of the flat washer, a coating treatment is usually applied to the surface of the flat washer. However, in order to ensure the consistency and stability of product quality, the coating thickness must be accurately controlled, so a detection mechanism is needed.

[0003] Traditional detection methods mainly include a microscope measurement method or an X-ray fluorescence spectrometer determination method. Although these methods can obtain relatively accurate results, they are difficult to meet the needs of modern industrial production due to slow detection speed and high cost.

[0004] The commonly used microscope measurement method needs to cut the flat washer sample into a thin slice, and then observe the coating thickness through an optical microscope. This method is complex to operate and time-consuming. Another commonly used method is the X-ray fluorescence spectrometer determination method. This method indirectly calculates the coating thickness by emitting X-rays from the sample and analyzing the reflected signals. Although the accuracy is high, the instrument is expensive and the maintenance cost is high. In addition, there is a contact thickness gauge which can directly contact the coating surface for measurement. However, due to the contact force, the integrity of the coating may be affected, so the application range is limited. CONTENT OF THE INVENTION

[0005] In view of the deficiencies of the prior art, the detection mechanism for efficiently detecting the coating thickness of a flat washer surface overcomes the deficiencies of the prior art and aims to solve the problems in the background art.

[0006] In order to achieve the above object, the technical scheme adopted by the present application is as follows: a detection mechanism for efficiently detecting the surface coating thickness of a flat washer, comprising a frame and a storage box, a conveying belt is fixedly installed on the inner side of the frame, two side plates are fixedly installed on the top of the frame in a symmetrical manner, a horizontal plate is fixedly installed on the top of the two side plates, a motor one is fixedly installed on the top of the horizontal plate through a support, a gear one is fixedly connected to the power output shaft of the motor one, a gear two is engaged with the outer edge of the gear one, a rotating shaft is fixedly connected to the inner wall of the gear two, a baffle is fixedly connected to the bottom of the rotating shaft, a sliding plate is fixedly installed on the outer side of the storage box, a support frame is fixedly installed on the top of the frame, a positioning frame is fixedly installed on the top of the support frame, a motor two is fixedly connected to the power output shaft of the positioning frame, a lead screw is fixedly connected to the power output shaft of the motor two, a sliding block is threadedly connected to the outer edge of the lead screw, a motor three is fixedly installed on the top of the sliding block, a rotating rod is fixedly connected to the power output shaft of the motor three, a disc is fixedly connected to the bottom of the rotating rod, an ultrasonic probe and an eddy current sensor are fixedly connected to the bottom of the disc.

[0007] As a preferred embodiment, the two side plates are symmetrically arranged at the two sides of the conveying belt.

[0008] By adopting the above technical scheme, the material moving above the conveying belt can be intercepted and blocked, thereby ensuring that it does not fall off the top of the conveying belt during movement and ensuring the stability of the flat washer during detection.

[0009] As a preferred embodiment, the rotating shaft is rotatably connected to the inner wall of the horizontal plate, and the bottom of the baffle is rotatably connected to the top of the conveying belt.

[0010] By adopting the above technical scheme, the rotation of the rotating shaft in the inner wall of the horizontal plate can drive the baffle to rotate and form an inclined shape that fits the inner wall of one of the side plates, thereby separating the flat washers that have passed the detection or failed the detection and guiding them to the inner cavity of the storage box.

[0011] As a preferred embodiment, the side wall of the sliding plate away from the storage box is fixedly connected to the two side plates, and the side of the sliding plate away from the storage box is overlapped with the outer edge of the conveying belt, a partition plate is fixedly installed in the middle of the storage box and the sliding plate, and the baffle and the partition plate are arranged in the same straight line.

[0012] By adopting the above technical scheme, the partition plate can divide the inner cavity of the storage box and the flat washers that slide down through the sliding plate, ensuring that the qualified products and unqualified products are not mixed together, and the side of the sliding plate away from the storage box is overlapped with the outer edge of the conveying belt, so that the flat washers moving on the top of the conveying belt can directly slide down into the inner cavity of the storage box without falling randomly to the ground.

[0013] As a preferred implementation, the rotating rod is rotatably connected to the inner wall of the sliding block at one end close to the motor three, and the rotating rod is slidably connected to the inner wall of the support frame, and the disc, the ultrasonic probe and the eddy current sensor are all arranged on the inner wall of the support frame.

[0014] By adopting the above technical scheme, the rotating rod can drive the ultrasonic probe and the eddy current sensor to rotate when rotating, so that the coating thickness detection operation can be performed on different positions of the flat washer, and the accuracy of the detection data is ensured, and the rotating rod will not interfere with the sliding block and the support frame when rotating and moving up and down.

[0015] As a preferred implementation, the inner wall of the positioning frame is provided with a square groove, and a circular ring is fixedly installed at the inner bottom of the square groove, the bottom end of the lead screw is rotatably connected to the inner wall of the circular ring, and the sliding block is slidably connected to the inner wall of the square groove.

[0016] By adopting the above technical scheme, the rotating of the lead screw can drive the sliding block to slide up and down on the inner wall of the square groove, so that the height of the ultrasonic probe and the eddy current sensor can be conveniently adjusted, thereby facilitating the detection operation of flat washers of different thicknesses, and the stability of the lead screw during rotation can be ensured, and the lead screw will not easily deviate or swing during rotation.

[0017] As a preferred implementation, the support frame is fixedly installed with a controller on the outer side, the ultrasonic probe, the eddy current sensor, the motor one and the controller are electrically connected, and the motor two and the motor three are also electrically connected with the controller.

[0018] By adopting the above technical scheme, after the ultrasonic probe and the eddy current sensor detect the coating thickness of the flat washer, the signals will be transmitted to the controller, and then the controller will drive the motor one to rotate forward and reverse according to the data detected by the ultrasonic probe and the eddy current sensor, so as to conveniently store the detected flat washer in the inner cavity of the storage box.

[0019] As a preferred implementation, the bottom of the frame is symmetrically connected with four anti-skid pads.

[0020] By adopting the above technical scheme, the stability of the device placed on the ground can be ensured, and displacement will not easily occur.

[0021] The beneficial effects of the present application are:

[0022] 1. The efficient detection of the surface coating thickness of the flat gasket detection mechanism, the ultrasonic probe and the eddy current sensor are responsible for measuring the thickness change of the flat gasket and detecting the position of the metal substrate respectively, so as to detect the coating thickness, and the rotation of the rotating rod can drive the ultrasonic probe and the eddy current sensor to rotate, so as to detect the coating thickness of the flat gasket at different positions, and ensure the accuracy of the detection data, and the rotation of the screw rod can drive the sliding block to slide up and down on the inner wall of the square groove, so as to conveniently adjust the height of the ultrasonic probe and the eddy current sensor, and then facilitate the detection of flat gaskets of different thicknesses.

[0023] 2. The efficient detection of the surface coating thickness of the flat gasket detection mechanism, the gear one drives the gear two and the rotating shaft to rotate, and then adjusts the inclined baffle to fit the inner side of the side plate, so that the running of the conveyor belt drives the flat gasket to slide and facilitates the separation of the qualified and unqualified flat gaskets after detection and storage in the inner cavity of the storage box. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a perspective structural schematic diagram of the present application;

[0025] Figure 2 It is another perspective structural schematic diagram of the present application;

[0026] Figure 3 It is a local enlarged structural schematic diagram of the present application;

[0027] Figure 4 It is a positioning frame section and local enlarged structural schematic diagram of the present application.

[0028] In the figure, 1 is a frame; 2 is a conveyor belt; 3 is a side plate; 4 is a support frame; 5 is a horizontal plate; 6 is a support; 7 is a motor one; 8 is a gear one; 9 is a gear two; 10 is a rotating shaft; 11 is a baffle; 12 is a sliding plate; 13 is a storage box; 14 is a partition; 15 is a positioning frame; 16 is a motor two; 17 is a screw rod; 18 is a sliding block; 19 is a motor three; 20 is a rotating rod; 21 is a disc; 22 is an ultrasonic probe; 23 is an eddy current sensor. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0030] REFERENCE Figures 1-4The utility model provides a kind of detection mechanism of high efficiency detection flat washer surface coating thickness, including frame 1 and receiving box 13, the inside fixed mounting of frame 1 has conveying belt 2, the top of frame 1 is symmetrically fixed mounting of two side plates 3, the top of two side plates 3 is fixed mounting of crossbeam 5, the top of crossbeam 5 is fixed mounting of motor one 7 by support 6, the power output shaft of motor one 7 is fixedly connected with gear one 8, the outer rim of gear one 8 is engaged with gear two 9, the inner wall of gear two 9 is fixedly connected with rotating shaft 10, the bottom of rotating shaft 10 is fixedly connected with baffle 11, the outside fixed mounting of receiving box 13 has sliding plate 12, the top of frame 1 is fixed mounting of support frame 4, the top of support frame 4 is fixed mounting of positioning frame 15, the power output shaft of positioning frame 15 is fixedly connected with motor two 16, the power output shaft of motor two 16 is fixedly connected with lead screw 17, the outer rim of lead screw 17 is threadedly connected with sliding block 18, the top of sliding block 18 is fixed mounting of motor three 19, the power output shaft of motor three 19 is fixedly connected with rotating rod 20, the bottom of rotating rod 20 is fixedly connected with disc 21, the bottom of disc 21 is fixedly connected with ultrasonic probe 22 and eddy current sensor 23.

[0031] Referring to Figure 1 And Figure 2 , two side plates 3 are symmetrically arranged at the two side positions of the conveying belt 2, so that the material moving above the conveying belt 2 can be intercepted and blocked, thereby ensuring that the material does not fall off the top of the conveying belt 2 during movement, and ensuring the stability of the flat washer during detection.

[0032] Referring to Figure 3 , the rotating shaft 10 is rotatably connected to the inner wall of the crossbeam 5, and the bottom of the baffle 11 is rotatably connected to the top of the conveying belt 2, so that the rotation of the rotating shaft 10 on the inner wall of the crossbeam 5 can drive the baffle 11 to rotate and form an inclined shape that fits the inner wall of one of the side plates 3, thereby separating the flat washers that have passed the detection and are qualified or unqualified and guiding them to be received in the inner cavity of the receiving box 13.

[0033] Referring to Figure 2 And Figure 3 , the side wall of the sliding plate 12 away from the receiving box 13 is fixedly connected to the two side plates 3, and the side of the sliding plate 12 away from the receiving box 13 is lapped with the outer edge of the conveying belt 2, the middle of the receiving box 13 and the sliding plate 12 is fixedly installed with a partition 14, the baffle 11 and the partition 14 are arranged in the same straight line, so that the partition 14 can divide the inner cavity of the receiving box 13 and the flat washers that fall through the sliding plate 12, ensuring that the qualified and unqualified products are not mixed together, and the side of the sliding plate 12 away from the receiving box 13 is lapped with the outer edge of the conveying belt 2, so that the flat washers moving on the top of the conveying belt 2 can directly move and fall into the inner cavity of the receiving box 13, and will not fall randomly to the ground.

[0034] Referring to Figure 4The end of the rotating rod 20 close to the motor three 19 is rotationally connected to the inner wall of the sliding block 18, the rotating rod 20 is slidingly connected to the inner wall of the support frame 4, the disc 21, the ultrasonic probe 22 and the eddy current sensor 23 are all arranged on the inner wall of the support frame 4, so that the rotating rod 20 can drive the ultrasonic probe 22 and the eddy current sensor 23 to rotate when rotating, thereby the coating thickness detection operation of different positions of the flat washer can be performed, the accuracy of the detection data is ensured, and the rotating rod 20 will not interfere with the sliding block 18 and the support frame 4 when rotating and moving up and down.

[0035] Referring to Figure 4 The inner wall of the positioning frame 15 is provided with a square groove, and a circular ring is fixedly installed at the inner bottom of the square groove. The bottom end of the lead screw 17 is rotationally connected to the inner wall of the circular ring. The sliding block 18 is slidingly connected to the inner wall of the square groove, so that the lead screw 17 can drive the sliding block 18 to slide up and down on the inner wall of the square groove, thereby the height of the ultrasonic probe 22 and the eddy current sensor 23 can be conveniently adjusted, thereby the detection operation of flat washers with different thicknesses can be conveniently coped with, and meanwhile the stability of the lead screw 17 during rotation can be ensured, and the lead screw 17 will not easily deviate and swing during rotation.

[0036] Referring to Figure 2 - Figure 4 The controller is fixedly installed on the outer side of the support frame 4. The ultrasonic probe 22, the eddy current sensor 23, the motor one 7 and the controller are electrically connected. The motor two 16 and the motor three 19 are also electrically connected with the controller, so that the ultrasonic probe 22 and the eddy current sensor 23 will transmit signals to the controller after detecting the coating thickness of the flat washer, and then the controller will drive the motor one 7 to run in forward and reverse directions according to the data detected by the ultrasonic probe 22 and the eddy current sensor 23, thereby the detected flat washer can be conveniently stored in the inner cavity of the storage box 13 on both sides of the partition 14.

[0037] Referring to Figure 1 and Figure 2 The bottom of the frame 1 is symmetrically screw-connected with four anti-skid pads, so that the stability of the device when placed on the ground can be ensured, and displacement of the device will not easily occur.

[0038] Working principle: when using the device, first, the device can be placed at the use site, then the flat washer to be detected can be placed on the top of the conveying belt 2 in sequence for conveying, until it is conveyed to the position below the disc 21, then the conveying belt 2 stops running, the motor two 16 drives the lead screw 17 to rotate, drives the sliding block 18 to slide on the inner wall of the square groove, then the disc 21 is driven to move downward through the rotating rod 20, until the bottom of the ultrasonic probe 22 and the eddy current sensor 23 is close to the top of the flat washer, then the coating thickness detection is completed, at the same time, the motor three 19 drives the rotating rod 20 to rotate, so that the rotating rod 20 can drive the ultrasonic probe 22 and the eddy current sensor 23 to rotate when rotating, so that the coating thickness detection work of different positions of the flat washer can be carried out, the accuracy of the detection data is ensured, after detection, the signal is transmitted to the controller, then the controller drives the motor one 7 to run in forward and reverse directions according to the data detected by the ultrasonic probe 22 and the eddy current sensor 23, the gear one 8 drives the gear two 9 and the rotating shaft 10 to rotate, then the baffle 11 is adjusted to be in an inclined state and is attached to the inner side of the side plate 3, so that the flat washer is slid by the operation of the conveying belt 2, and the qualified and unqualified flat washers after detection are conveniently separated and stored in the inner cavity of the storage box 13 on the two sides of the partition plate 14.

[0039] In the description of the present application, it should be pointed out that the positions or position relationships indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end" and "the other end" are based on the positions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the indicated device or element to have a specific position, to be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, and can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific situation.

[0041] The present application has been described above in combination with specific embodiments, but those skilled in the art should understand that these descriptions are exemplary and are not limiting the protection scope of the present application. Those skilled in the art can make various modifications and changes to the present application according to the spirit and principles of the present application, and these modifications and changes are also within the scope of the present application.

Claims

1. A detection mechanism for efficiently detecting the thickness of a surface coating of a flat washer, comprising a frame (1) and a receiving box (13), characterized in that, The inner side of the frame (1) is fixedly installed with a conveying belt (2), the top of the frame (1) is symmetrically fixedly installed with two side plates (3), the top of the two side plates (3) is fixedly installed with a horizontal plate (5), the top of the horizontal plate (5) is fixedly installed with a motor one (7) through a support (6), the power output shaft of the motor one (7) is fixedly connected with a gear one (8), the outer edge of the gear one (8) is engaged with a gear two (9), the inner wall of the gear two (9) is fixedly connected with a rotating shaft (10), the bottom of the rotating shaft (10) is fixedly connected with a baffle (11), the outer side of the storage box (13) is fixedly installed with a sliding plate (12), the top of the frame (1) is fixedly installed with a supporting frame (4), the top of the supporting frame (4) is fixedly installed with a positioning frame (15), the power output shaft of the positioning frame (15) is fixedly connected with a motor two (16), the power output shaft of the motor two (16) is fixedly connected with a lead screw (17), the outer edge of the lead screw (17) is threadedly connected with a sliding block (18), the top of the sliding block (18) is fixedly installed with a motor three (19), the power output shaft of the motor three (19) is fixedly connected with a rotating rod (20), the bottom of the rotating rod (20) is fixedly connected with a disc (21), the bottom of the disc (21) is fixedly connected with an ultrasonic probe (22) and an eddy current sensor (23).

2. The detection mechanism for efficiently detecting the thickness of the surface coating of a flat washer according to claim 1, wherein The two side plates (3) are symmetrically arranged at the two side positions of the conveying belt (2).

3. The detection mechanism for efficiently detecting the thickness of the surface coating of a flat washer according to claim 1, wherein The rotating shaft (10) is rotatably connected to the inner wall of the horizontal plate (5), and the bottom of the baffle (11) is rotatably connected to the top of the conveying belt (2).

4. The detection mechanism for efficiently detecting the thickness of the surface coating of a flat washer according to claim 1, wherein The side wall of the sliding plate (12) away from the storage box (13) is fixedly connected with the two side plates (3), and the side of the sliding plate (12) away from the storage box (13) is overlapped with the outer edge of the conveying belt (2), the middle part of the storage box (13) and the sliding plate (12) is fixedly installed with a partition plate (14), and the baffle (11) and the partition plate (14) are arranged in the same straight line.

5. The detection mechanism for efficiently detecting the thickness of the surface coating of a flat washer according to claim 1, wherein The end of the rotating rod (20) close to the motor three (19) is rotatably connected to the inner wall of the sliding block (18), the rotating rod (20) is slidably connected to the inner wall of the supporting frame (4), and the disc (21), the ultrasonic probe (22) and the eddy current sensor (23) are arranged on the inner wall of the supporting frame (4).

6. The detection mechanism for efficiently detecting the thickness of the surface coating of a flat washer according to claim 1, wherein The inner wall of the positioning frame (15) is provided with a square groove, and the inner bottom of the square groove is fixedly installed with a circular ring, the bottom end of the lead screw (17) is rotatably connected to the inner wall of the circular ring, and the sliding block (18) is slidably connected to the inner wall of the square groove.

7. The detection mechanism for efficiently detecting the thickness of the surface coating of a flat washer according to claim 1, wherein The outer side of the supporting frame (4) is fixedly installed with a controller, the ultrasonic probe (22), the eddy current sensor (23), the motor one (7) and the controller are electrically connected, and the motor two (16) and the motor three (19) are also electrically connected with the controller.

8. The detection mechanism for efficiently detecting the thickness of the surface coating of a flat washer according to claim 1, wherein The bottom of the frame (1) is symmetrically and threadedly connected with four anti-skid pads.