Coupling agent coating device for part surface defect detection
By designing a coupling agent application device that includes a fixed frame, a rotating shaft, a U-shaped rotating rod, and an application roller, the problem of uneven application of coupling agent on the surface of parts was solved, and the uniform application of coupling agent and the improvement of detection efficiency were achieved.
Patent Information
- Application Number
- CN202520362646.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-04
AI Technical Summary
In existing technologies, the coupling agent is not applied evenly to the surface of the parts, requiring multiple operations and affecting the testing efficiency.
A coupling agent coating device was designed, comprising a fixed frame, a rotating shaft, a U-shaped rotating rod, a coating roller, a conveying cylinder, and a one-way valve. By setting up a holding box and a distribution pipe, the coupling agent is evenly distributed on the surface of the coating roller, achieving single-roll coating.
This method achieves uniform application of the coupling agent, reduces repetitive operations by personnel, and improves detection efficiency.
Smart Images

Figure CN223902249U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of surface defect detection technology for parts, specifically a coupling agent coating device for surface defect detection of parts. Background Technology
[0002] Surface defect detection of parts refers to the process of detecting and locating abnormalities or damage on the surface of parts. When using an ultrasonic flaw detector to detect surface defects, it is usually necessary to apply a coupling agent to the surface of the parts. This is mainly to remove air between the probe and the workpiece surface, so that the ultrasonic waves can be smoothly transmitted to the workpiece and improve the detection effect. Currently, in the process of applying coupling agent to the surface of parts, it is usually necessary for personnel to squeeze the coupling agent from the packaging bottle onto the surface of the application roller before rolling it onto the surface of the parts. Because the area of coupling agent squeezed onto the surface of the application roller is relatively concentrated, the uniformity of a single roll coating operation is poor. It is often necessary for personnel to roll the coating multiple times to evenly coat the surface of the parts, which increases the time required for the operation and thus affects the efficiency of the detection operation. Utility Model Content
[0003] The purpose of this invention is to provide a coupling agent application device for detecting surface defects of parts, which has the advantage of making it easy for personnel to quickly apply coupling agent to the surface of the parts to be inspected, thus greatly facilitating the work of personnel.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a coupling agent coating device for detecting surface defects of parts, comprising a fixed frame, a holding box fixedly connected to the top left end of the outer surface of the fixed frame, a fixed cover fixedly connected to the left end of the inner cavity of the fixed frame, a rotating shaft movably connected to the lower right end of the fixed cover via a bearing, a U-shaped rotating rod fixedly connected to the left side of the rotating shaft, an application roller fixedly connected to the right side of the rotating shaft, a conveying cylinder fixedly connected to the top left end of the inner cavity of the fixed frame, and a first one-way valve fixedly installed at both ends of the left side of the conveying cylinder. The input ends of the first one-way valve are fixedly installed at the left end of the bottom of the container via a pipe. The two ends of the right side of the conveying cylinder are fixedly installed with second one-way valves. The output ends of the two second one-way valves are fixedly connected to the right end of the top of the inner cavity of the fixed frame via a pipe. A vertical rod is movably connected to the middle end of the bottom of the conveying cylinder. A piston is fixedly connected to the top of the vertical rod. The surface of the piston is movably connected to the upper end of the inner cavity of the conveying cylinder. A toggle frame plate is fixedly connected to the bottom of the vertical rod. The upper end of the U-shaped rotating rod is movably connected to the middle end of the toggle frame plate.
[0005] As a preferred embodiment, the bottom of the fixed frame is movably connected to support wheels via bearings on all four sides, and a handle is fixedly connected to the top right end of the outer surface of the fixed frame, with a rubber anti-slip sleeve covering the surface of the handle.
[0006] As a preferred scheme, the top of the containing box is fixedly connected with a filling cylinder, the top of the filling cylinder is threadedly connected with a protective cover, and the top of the protective cover is provided with a ventilation hole.
[0007] As a preferred scheme, the lower end of the right side of the inner cavity of the fixed frame is movably connected with a stabilizing shaft through a bearing, and the left side of the stabilizing shaft is fixedly connected with the right side of the smearing roller.
[0008] As a preferred scheme, the two ends of the bottom of the inner cavity of the fixed cover are fixedly connected with guide sliding rods, and the surface of the dialing frame plate is movably connected with the upper ends of the guide sliding rods.
[0009] As a preferred scheme, the surface of the piston is fixedly connected with a first rubber ring, the surface of the first rubber ring is movably connected with the upper end of the inner cavity of the conveying cylinder, the middle end of the bottom of the conveying cylinder is fixedly connected with a second rubber ring, and the surface of the vertical rod is movably connected with the surface of the second rubber ring.
[0010] As a preferred scheme, the lower end of the left side of the U-shaped rotating rod is fixedly connected with a supporting shaft, and the left side of the supporting shaft is movably connected with the lower end of the left side of the inner cavity of the fixed frame through a bearing.
[0011] Compared with the prior art, the utility model has the advantages that:
[0012] 1、The utility model discloses a part surface defect detection device, which comprises a containing box, a fixed frame, a rotating shaft, a fixed cover, a U-shaped rotating rod, a dialing frame plate, a vertical rod, a piston, a conveying cylinder, a first one-way valve, a second one-way valve and a shunt pipe.
[0013] 2, the utility model discloses a support wheel's setting can avoid the bottom of fixed frame and the surface contact of part in the process of coupling agent coating, and reduced the resistance in the moving process, through the setting of handle and rubber antiskid sleeve, personnel is convenient in the process of coupling agent coating to the whole holding, through the setting of filling cylinder, convenient personnel to the inside of holding box carries out coupling agent filling, through the setting of stable axle, reached the right side of the roller is stabilized and supported purpose, avoid the roller and incline due to stress, through the setting of guide slide, reached the support and guide purpose of the frame board, avoid the frame board and incline due to stress, through the setting of first rubber ring and second rubber ring, effectively improved the sealing property of the contact between piston and conveying cylinder, vertical rod and conveying cylinder, through the setting of support shaft, reached the left side of the u-shaped rotating lever is supported purpose, avoid the u-shaped rotating lever and incline due to stress. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the perspective view of the utility model;
[0015] Figure 2 It is the fixed frame front view structure schematic diagram of the utility model;
[0016] Figure 3 It is the conveying cylinder bottom structure schematic diagram of the utility model;
[0017] Figure 4 It is the conveying cylinder front view structure schematic diagram of the utility model.
[0018] In the drawing: 1, fixed frame;2, fixed cover;3, roller;4, holding box;5, handle;6, filling cylinder;7, shunt;8, conveying cylinder;9, first check valve;10, u-shaped rotating lever;11, support shaft;12, guide slide;13, second check valve;14, rotating shaft;15, stable axle;16, support wheel;17, frame board;18, vertical rod;19, piston;20, first rubber ring;21, second rubber ring. DETAILED DESCRIPTION
[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0020] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0021] Example 1:
[0022] Please see Figures 1-4 As shown, this utility model provides a coupling agent coating device for detecting surface defects of parts, including a fixed frame 1. A holding box 4 is fixedly connected to the top left end of the outer surface of the fixed frame 1. A fixed cover 2 is fixedly connected to the left end of the inner cavity of the fixed frame 1. A rotating shaft 14 is movably connected to the lower right end of the fixed cover 2 via a bearing. A U-shaped rotating rod 10 is fixedly connected to the left side of the rotating shaft 14. An application roller 3 is fixedly connected to the right side of the rotating shaft 14. A conveying cylinder 8 is fixedly connected to the top left end of the inner cavity of the fixed frame 1. First one-way valves 9 are fixedly installed at both ends of the left side of the conveying cylinder 8. The two first one-way valves 9 are connected to the conveying cylinder 8. The inlet end is fixedly installed at the left end of the bottom of the container 4 through a pipe. The two ends of the right side of the conveying cylinder 8 are fixedly installed with a second one-way valve 13. The output ends of the two second one-way valves 13 are fixedly connected to the right end of the top of the inner cavity of the fixed frame 1 through a pipe. The middle end of the bottom of the conveying cylinder 8 is movably connected with a vertical rod 18. The top of the vertical rod 18 is fixedly connected with a piston 19. The surface of the piston 19 is movably connected to the upper end of the inner cavity of the conveying cylinder 8. The bottom of the vertical rod 18 is fixedly connected with a toggle frame plate 17. The upper end of the U-shaped rotating rod 10 is movably connected to the middle end of the toggle frame plate 17.
[0023] In this technical solution, the container 4 is used to hold the coupling agent to be applied during the defect detection of the part surface. The fixed frame 1, rotating shaft 14, fixed cover 2, U-shaped rotating rod 10, actuating frame plate 17, upright rod 18, piston 19, conveying cylinder 8, first one-way valve 9, second one-way valve 13 and diverting pipe 7 are used to ensure that the coupling agent contained in the container 4 is evenly distributed on the surface of the application roller 3 as the application roller 3 moves along the surface of the part. The application roller 3 can evenly apply the coupling agent to the area of the part to be detected in a single roll. The overall operation is convenient and quick, effectively avoiding the need for repetitive operations during the application of coupling agent and improving the overall efficiency of the operation.
[0024] Example 2:
[0025] Based on Embodiment 1, this utility model is as follows: Figures 1-4As shown, the bottom of the fixed frame 1 is movably connected with a support wheel 16 through a bearing, the right end of the top of the outer surface of the fixed frame 1 is fixedly connected with a handle 5, the surface of the handle 5 is sleeved with a rubber anti-skid sleeve, the top of the containing box 4 is fixedly connected with a filling cylinder 6, the top of the filling cylinder 6 is threadedly connected with a protective cover, the top of the protective cover is provided with a ventilation hole, the lower end of the right side of the inner cavity of the fixed frame 1 is movably connected with a stabilizing shaft 15, the left side of the stabilizing shaft 15 is fixedly connected to the right side of the smearing roller 3, the both ends of the bottom of the inner cavity of the fixed cover 2 are fixedly connected with guide sliding rods 12, the surface of the driving frame plate 17 is movably connected to the upper end of the guide sliding rod 12, the surface of the piston 19 is fixedly connected with a first rubber ring 20, the surface of the first rubber ring 20 is movably connected to the upper end of the inner cavity of the conveying cylinder 8, the middle end of the bottom of the conveying cylinder 8 is fixedly connected with a second rubber ring 21, the surface of the vertical rod 18 is movably connected to the surface of the second rubber ring 21, the lower end of the left side of the U-shaped rotating rod 10 is fixedly connected with a support shaft 11, and the left side of the support shaft 11 is movably connected to the lower end of the left side of the inner cavity of the fixed frame 1 through a bearing.
[0026] In the technical scheme, the support wheel 16 is arranged to avoid the bottom of the fixed frame 1 from contacting the surface of the part during the coupling agent coating process, thereby reducing the resistance during movement, the handle 5 and the rubber anti-skid sleeve are arranged to facilitate personnel to hold the whole during the coupling agent coating process, the filling cylinder 6 is arranged to facilitate personnel to add coupling agent to the inside of the containing box 4, the stabilizing shaft 15 is arranged to stably support the right side of the smearing roller 3, avoid the smearing roller 3 from tilting due to stress, the guide sliding rod 12 is arranged to support and guide the driving frame plate 17, avoid the driving frame plate 17 from tilting due to stress, the first rubber ring 20 and the second rubber ring 21 are arranged to effectively improve the sealing between the piston 19 and the conveying cylinder 8 and between the vertical rod 18 and the conveying cylinder 8, and the support shaft 11 is arranged to support the left side of the U-shaped rotating rod 10, avoid the U-shaped rotating rod 10 from tilting due to stress.
[0027] The working principle of the utility model is: through the setting of containing box 4, the coupling agent needed to be attached can be contained in the process of part surface defect detection, and when the surface of the part needs to be coated with the coupling agent, the coating roller 3 is pulled to move along the area needed to be detected on the surface of the part, the movement of the coating roller 3 can drive the rotating shaft 14 to rotate along the bearing on the fixed cover 2, the rotation of the rotating shaft 14 can drive the U-shaped rotating rod 10 to rotate, the U-shaped rotating rod 10 rotates while driving the surface of the dial frame plate 17, the dial frame plate 17, the vertical rod 18 and the piston 19 to reciprocate vertically, the piston 19 moves while the coupling agent in the containing box 4 can be extracted through the conveying cylinder 8, the first one-way valve 9 and the pipeline, and be transported into the shunt pipe 7 through the second one-way valve 13 and the pipeline, so that the coupling agent can uniformly flow to the surface of the coating roller 3 through the shunt pipe 7, effectively ensuring the uniformity of the coupling agent distributed on the surface of the coating roller 3, so that the coupling agent can be uniformly attached to the area needed to be detected on the part in the process of single rolling of the coating roller 3, the whole operation is convenient and fast, and the repeated operation of personnel in the coupling agent attachment process is avoided, and the overall operation efficiency of personnel is improved.
[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, and are not limited to the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the essence and scope of the technical solutions of the utility model.
Claims
1. A coupling agent application device for part surface defect detection, comprising a fixed frame (1), characterized in that: The left end of the top outer surface of the fixed frame (1) is fixedly connected with a containing box (4), the left end of the inner cavity of the fixed frame (1) is fixedly connected with a fixed cover (2), the lower right side of the fixed cover (2) is movably connected with a rotating shaft (14) through a bearing, the left side of the rotating shaft (14) is fixedly connected with a U-shaped rotating rod (10), the right side of the rotating shaft (14) is fixedly connected with an application roller (3), the left end of the top inner cavity of the fixed frame (1) is fixedly connected with a conveying cylinder (8), the left side of the conveying cylinder (8) is fixedly connected with a first check valve (9) at both ends, the input ends of the two first check valves (9) are fixedly connected with the left end of the bottom of the containing box (4) through a pipeline, the right side of the conveying cylinder (8) is fixedly connected with a second check valve (13) at both ends, the output ends of the two second check valves (13) are fixedly connected with the right end of the top inner cavity of the fixed frame (1) through a pipeline and a shunt pipe (7), the middle end of the bottom of the conveying cylinder (8) is movably connected with a vertical rod (18), the top of the vertical rod (18) is fixedly connected with a piston (19), the surface of the piston (19) is movably connected with the upper end of the inner cavity of the conveying cylinder (8), the bottom of the vertical rod (18) is fixedly connected with a driving frame plate (17), and the upper end of the U-shaped rotating rod (10) is movably connected with the middle end of the driving frame plate (17).
2. The coupling agent applicator for part surface defect inspection according to claim 1, characterized by: The bottom of the fixed frame (1) is movably connected with a supporting wheel (16) through a bearing around the periphery, the right end of the top outer surface of the fixed frame (1) is fixedly connected with a handle (5), and the surface of the handle (5) is sleeved with a rubber anti-skid sleeve.
3. The coupling agent applicator for part surface defect inspection according to claim 1, characterized in that: The top of the containing box (4) is fixedly connected with a filling cylinder (6), the top of the filling cylinder (6) is threadedly connected with a protective cover, and a ventilation hole is formed in the top of the protective cover.
4. The coupling agent applicator for part surface defect inspection according to claim 1, characterized in that: The lower right side of the fixed frame (1) is movably connected with a stabilizing shaft (15) through a bearing, and the left side of the stabilizing shaft (15) is fixedly connected to the right side of the application roller (3).
5. The coupling agent applicator for part surface defect inspection according to claim 1, wherein: Both ends of the bottom inner cavity of the fixed cover (2) are fixedly connected with guide sliding rods (12), and the surface of the driving frame plate (17) is movably connected to the upper ends of the guide sliding rods (12).
6. The coupling agent applicator for part surface defect inspection according to claim 1, wherein: The surface of the piston (19) is fixedly connected with a first rubber ring (20), the surface of the first rubber ring (20) is movably connected to the upper end of the inner cavity of the conveying cylinder (8), the middle end of the bottom of the conveying cylinder (8) is fixedly connected with a second rubber ring (21), and the surface of the vertical rod (18) is movably connected to the surface of the second rubber ring (21).
7. The coupling agent applicator for part surface defect inspection according to claim 1, wherein: The lower left side of the U-shaped rotating rod (10) is fixedly connected with a supporting shaft (11), and the left side of the supporting shaft (11) is movably connected to the lower left side of the inner cavity of the fixed frame (1) through a bearing.