Brake master cylinder piston compensation hole defect detection mechanism

Abstract

The utility model relates to a brake master cylinder piston compensation hole defect detection mechanism, which comprises a placing table, an image acquisition assembly and a detection assembly, and is characterized in that the image acquisition assembly is arranged on the placing table and is used for carrying out image acquisition on a compensation hole of a to-be-detected piston to obtain a detection image of the compensation hole of the to-be-detected piston; the brake master cylinder piston compensation hole defect detection device has the advantages that semi-automatic defect detection processing of the brake master cylinder piston compensation hole is achieved, the compensation hole defect detection efficiency is improved, the detection precision is improved, and the detection precision is improved. And meanwhile, the situation of missing inspection or not-in-place inspection existing in manual visual inspection is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts detection equipment, in particular to a brake master cylinder piston compensation hole defect detection mechanism. Background Art

[0002] The vehicle's brake master cylinder is the power source of the service brake system. In the traditional brake master cylinder, the braking force comes from the pedal force applied by the driver on the brake pedal and the vacuum of the engine intake manifold, which converts the mechanical force applied by the driver on the brake pedal and the force of the vacuum booster into brake oil pressure. With the development of the automobile industry, the requirements for the appearance of products are getting higher and higher, especially those involving matching issues, such as the matching of the brake master cylinder freight forwarding compensation hole and the leather cup sealing lip.

[0003] When there is a bulge defect at the position of the piston compensation hole, after the piston is pushed forward, the piston compensation hole will pass through the lip of the leather cup. At this time, the bulge of the piston compensation hole will scratch the leather cup, damage the sealing function of the leather cup, and even cause the brake master cylinder to be unable to maintain pressure, thereby causing brake failure. Therefore, the appearance of the piston compensation hole needs to be inspected during production to avoid bulges at the piston compensation hole.

[0004] The existing inspection of the convex defects of the piston compensation hole is all done through manual visual inspection, but due to the difference in manual visual inspection, there may be omissions in inspection or inadequate inspection, and the manual visual inspection is inefficient. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a brake master cylinder piston compensation hole defect detection mechanism to solve the technical problem in the prior art that there are missed inspections or inadequate inspections due to differences in human visual observation.

[0006] The utility model provides a brake master cylinder piston compensation hole defect detection mechanism, comprising:

[0007] Placement table;

[0008] An image acquisition component is arranged on the placement table and is used to acquire an image at the compensation hole of the piston to be tested to obtain a detection image of the compensation hole of the piston to be tested;

[0009] The detection component is used to detect the detection image and determine whether there is a protrusion at the compensation hole of the piston to be tested.

[0010] Optionally, a placement component is further included, the piston to be tested is placed on the placement component, and the image acquisition component is directly opposite to the compensation hole of the piston to be tested on the placement component.

[0011] Optionally, a rotating member is provided at the placement component, and the placement component is located on the rotating end of the rotating member. The rotating member is used to drive the placement component and the piston to be tested on the placement component to rotate around their axis, so that the image acquisition component can capture images of the circumference of the compensation hole of the piston to be tested.

[0012] Optionally, the image acquisition assembly includes a support base arranged on the placement table and a camera arranged on the support base, and the camera head of the camera is facing the piston to be tested.

[0013] Optionally, a mounting base is provided between the camera and the supporting base, and the camera is detachably connected to the supporting base via the mounting base.

[0014] Optionally, the mounting base is slidably connected to the supporting base along a height direction of the supporting base to adjust the height of the camera.

[0015] Optionally, a light source is further included, and the light source is facing the piston to be tested on the placement component, and is used to illuminate the compensation hole of the piston to be tested.

[0016] Optionally, a waste box is further included, which is mounted on the placement table and is used to collect pistons with protrusions detected by the detection component.

[0017] Optionally, a display screen is further included, which is mounted on the placement table, the display screen is electrically connected to the detection component, and the display screen is used to display the detection result of the detection component in real time.

[0018] Optionally, a controller is further included, on which at least two control buttons are provided, the control buttons are electrically connected to the image acquisition component and the rotating member respectively, and the two control buttons are used to control the image acquisition component and the rotating member to start and stop respectively.

[0019] The technical solution of the utility model has the following advantages:

[0020] The utility model provides a brake master cylinder piston compensation hole defect detection mechanism, when in use, moves the piston to be tested to the image acquisition component, and after acquiring a clear, stable and reliable detection image of the compensation hole of the piston to be tested through the image acquisition component, uses the detection component to perform real-time detection and processing of the raised defects at the compensation hole position in the detection image, thereby realizing semi-automatic defect detection and processing of the compensation hole of the brake master cylinder piston, improving the efficiency of compensation hole defect detection, and avoiding the situation of missed detection or inadequate inspection in manual visual inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the brake master cylinder piston compensation hole defect detection mechanism of the utility model;

[0023] Figure 2 for Figure 1 A magnified view of part A in FIG.

[0024] Figure 3 for Figure 1 A magnified view of part B in FIG.

[0025] Figure 4 It is a schematic diagram of the image acquisition component in the utility model;

[0026] Figure 5 It is an exploded view of the image acquisition component in the utility model.

[0027] Description of reference numerals:

[0028] 1. Placement table; 2. Image acquisition component; 21. Support seat; 22. Camera; 23. Mounting seat; 3. Shielding plate; 4. Bracket; 5. Universal wheel; 6. Adjustment screw; 7. Contact plate; 8. Placement component; 81. Placement rod; 82. Step surface; 9. Rotating part; 10. Slide groove; 11. Sliding block; 12. Limit bolt; 13. Light source; 14. Display screen; 15. Controller; 16. Control button; 17. Waste box. DETAILED DESCRIPTION

[0029] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the description of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Unless otherwise clearly specified and limited, the terms "disposed", "installed", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0032] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0033] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0034] Example

[0035] Reference Figure 1-Figure 5 As shown, the utility model provides a brake master cylinder piston compensation hole defect detection mechanism, including a placement table 1, an image acquisition component 2 and a detection component, wherein the placement table 1 is horizontally arranged, the image acquisition component 2 is arranged on the upper surface of the placement table 1, and is used to capture images at the compensation hole of the piston to be tested to obtain a detection image of the compensation hole of the piston to be tested, and the detection component (not shown in the figure) is used to detect the detection image to determine whether there is a protrusion at the compensation hole of the piston to be tested.

[0036] When in use, the piston to be tested is moved to the image acquisition component 2. After the image acquisition component 2 is used to acquire a clear, stable and reliable detection image of the compensation hole of the piston to be tested, the detection component is used to perform real-time detection and processing of the raised defects at the compensation hole position in the detection image, thereby realizing semi-automatic defect detection and processing of the compensation hole of the brake master cylinder piston, improving the efficiency of compensation hole defect detection, and avoiding missed detection or inadequate inspection that exists in manual visual inspection.

[0037] As a specific implementation manner, a shielding plate 3 is mounted on the top of the placing table 1, and a space is left between the shielding plate 3 and the top of the placing table 1 for setting other components. The shielding plate 3 is fixed to the top of the placing table 1 by a bracket 4, and four universal wheels 5 are arranged circumferentially at the bottom of the placing table 1. The placing table 1 can be moved by the universal wheels 5 to move the placing table 1 to different positions for work; at the same time, a horizontally arranged resistance plate 7 is also provided at the bottom of the placing table 1, and a vertically arranged adjusting screw 6 is provided on the side of the resistance plate 7 facing the placing table 1, the bottom of the adjusting screw 6 is located at the center of the resistance plate 7 and is fixedly connected to the resistance plate 7, and the top of the adjusting screw 6 penetrates into the bottom of the placing table 1 and is fixed to the placing table 1 Threaded connection, by rotating the adjusting screw 6, the contact plate 7 can be driven to move up and down. When the placement table 1 is moved to a suitable position under the action of the universal wheel 5, the adjusting screw 6 is rotated at this time to move the contact plate 7 downward until the contact plate 7 is tightly pressed against the ground. Under the action of the friction between the contact plate 7 and the ground, the placement table 1 is not easy to slide, thereby making the placement table 1 more stable, so that the placement table 1 will not move at will when the brake master cylinder piston compensation hole defect detection mechanism is in use. When the placement table 1 needs to be moved, the adjusting screw 6 is rotated in the opposite direction again to drive the contact plate 7 to move upward until the contact plate 7 is separated from the ground. At this time, the placement table 1 can be easily driven to move by the universal wheel 5.

[0038] In order to facilitate the placement of the piston to be tested without the need for manpower to take the piston to be tested, the piston to be tested is aligned with the image acquisition component 2 to reduce manpower. A placement component 8 is provided on the upper surface of the placement table 1, and the piston to be tested is placed on the placement component 8 so that the image acquisition component 2 at this time is just opposite to the compensation hole of the piston to be tested on the placement component 8, so that the image acquisition component 2 can perform image acquisition on the compensation hole of the piston to be tested to obtain a detection image of the compensation hole of the piston to be tested. Regarding the placement component 8, a vertically arranged placement rod 81 matching the shape of the piston to be tested can be used, and a step surface 82 is provided at the bottom of the placement rod 81. When the piston to be tested is placed on the placement rod 81, the lower surface of the piston to be tested just conflicts with the step surface 82, so that the piston to be tested is stably placed on the placement component 8 for the image acquisition component 2 to perform image acquisition.

[0039] In addition, a rotating part 9 is also provided at the placement component 8. The rotating part 9 is provided at the bottom of the placement component 8 and is detachably connected to the upper surface of the placement table 1. The placement component 8 is detachably connected to the rotating end of the rotating part 9, and the rotating axis of the rotating part 9 and the placement component 8 are on the same axis. The rotating part 9 is used to drive the placement component 8 and the piston to be tested on the placement component 8 to rotate around its axis, so that the image acquisition component 2 can capture images of the circumference of the compensation hole of the piston to be tested on the placement component 8. When the detection is performed, the rotating part 9 is directly started at this time, and the rotating part 9 can drive the placement component 8 and the piston to be tested on the placement component 8 to rotate around its axis, so that the image acquisition component 2 can capture images of the compensation hole of the piston to be tested 360 degrees without the need for manual adjustment of the position of the piston to be tested, and the circumference of the entire freight forwarding compensation hole to be tested can be automatically and comprehensively detected.

[0040] As a specific embodiment, the image acquisition component 2 includes a support base 21 fixedly set on the upper surface of the placement table 1, and the support base 21 is extended in the height direction so that the support base 21 extends into a long strip and is vertically set. A camera 22 is set on the support base 21, and the camera 22 is directly facing the compensation hole of the piston to be tested placed on the placement component 8, so that the camera 22 can accurately capture the detection image at the compensation hole of the piston to be tested. In order to install the camera 22 on the support base 21, a mounting base 23 is set between the camera 22 and the support base 21, and the mounting base 23 and the camera 22 are fixedly connected, while the mounting base 23 and the support base 21 are detachably connected, so that the camera 22 can be easily detached from the support base 21, so as to replace or adjust the camera 22.

[0041] The mounting seat 23 is slidably connected to the supporting seat 21 along the height direction of the supporting seat 21 to adjust the height of the camera 22 to adapt to pistons to be tested of different sizes. Specifically, the mounting seat 23 is provided with a slide groove 10 toward the side of the supporting seat 21, and the slide groove 10 extends along the height direction of the supporting seat 21 and passes through the top wall and the bottom wall of the mounting seat 23, and the support seat 21 is provided with a slider 11 toward the side of the slide groove 10, and the slider 11 is extended along the length direction of the supporting seat 21, and the slider 11 is partially located in the slide groove 10 and conflicts with the inside of the slide groove 10, and the slide groove 10 can slide on the slider 11, so that the mounting seat 23 is slidably connected to the supporting seat 21. In order to fix the mounting seat 23 on the supporting seat 21, a limiting bolt 12 is provided on the side wall of the mounting seat 23 at this time, and the end of the limiting bolt 12 facing away from its nut penetrates into the side wall of the mounting seat 23 and is threadedly connected with the mounting seat 23, and continues to penetrate into the slide groove 10 until it conflicts with the slider 11. When it needs to be fixed The friction between the limit bolt 12 and the slider 11 at this time makes the mounting seat 23 unable to slide on the slider 11, so that the mounting seat 23 can be detachably fixed on the support seat 21. When the height of the camera 22 needs to be adjusted, the limit bolt 12 is rotated in reverse to disengage the limit bolt 12 and the slider 11. For the end of the limit bolt 12 facing away from its nut, some material layers with high friction can be provided to make it easier to limit the mounting seat 23 and the support seat 21. In addition, for the slider 11 and the slide groove 10, it is not limited to that only the slider 11 can be set on the support seat 21 and the slide groove 10 is opened on the mounting seat 23. The slider 11 can also be set on the mounting seat 23, and the slide groove 10 can be opened on the support seat 21, as long as the mounting seat 23 and the support seat 21 can be slidably connected and the movement of the two can be limited by the limit bolt 12.

[0042] As an alternative embodiment, it also includes a light source component 13, which can be set on the mounting seat 23. The light source component 13 is opposite to the piston to be tested on the placement component 8, and is used to illuminate the compensation hole of the piston to be tested on the placement component 8. Three light source components can be provided, and the three light source components are arranged circumferentially. When the piston to be tested is placed on the placement component 8, the three light source components are just located at the circumference of the piston to be tested, so as to comprehensively illuminate the compensation hole of the piston to be tested, so that the light on the surface of the compensation hole of the piston to be tested is more uniform, which is conducive to the camera 22 to capture a picture with clearer features, thereby increasing the detection accuracy of the subsequent detection component. Specifically, the light source component 13 can be set to an ultra-bright linear light source.

[0043] As a specific implementation method, the detection component can be configured as an industrial computer or server that provides identification and detection functions. Such industrial computers and servers are provided with an operating environment for identification and detection related algorithms. Such industrial computers or servers are a common detection method in the industry and can be adjusted according to different needs. In this embodiment, after the image acquisition component 2 transmits the image taken at the compensation hole of the piston to be tested to the detection component, the detection component can be used to determine whether there is a protrusion in the captured image.

[0044] In addition, it also includes a display screen 14, which is mounted on the placement table 1. The display screen 14 is electrically connected to the detection component. The display screen 14 is used to display the detection result of the detection component in real time. At this time, the detection process of the defect detection mechanism is displayed in real time through the display screen 14 for the staff to watch, to prevent whether the piston to be tested has a bulge, so that the staff can grasp its detection situation in real time.

[0045] In addition, it includes a waste box 17, which is set on the placement table 1 and is used to collect pistons with protrusions detected by the detection component. When the detection component detects the presence of a protrusion at the compensation hole of the piston to be tested and displays it on the display screen 14, the staff can directly place the piston with the protrusion on the placement component 8 into the waste box 17 for subsequent processing.

[0046] As an alternative embodiment, it also includes a controller 15, which is detachably connected to the upper surface of the placement table 1, and is provided with two control buttons 16. The control buttons 16 are electrically connected to the image acquisition component 2 and the rotating member 9 respectively, and the two control buttons 16 are used to control the start and stop of the image acquisition component 2 and the rotating member 9 respectively.

[0047] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A brake master cylinder piston compensation hole defect detection mechanism, characterized in that: include: Placement table; An image acquisition component is arranged on the placement table and is used to acquire an image at the compensation hole of the piston to be tested to obtain a detection image of the compensation hole of the piston to be tested; The detection component is used to detect the detection image and determine whether there is a protrusion at the compensation hole of the piston to be tested.

2. The brake master cylinder piston compensation hole defect detection mechanism according to claim 1, characterized in that: It also includes a placement component, the piston to be tested is placed on the placement component, and the image acquisition component is directly facing the compensation hole of the piston to be tested on the placement component.

3. The brake master cylinder piston compensation hole defect detection mechanism according to claim 2, characterized in that: A rotating member is provided at the placement component, and the placement component is located on the rotating end of the rotating member. The rotating member is used to drive the placement component and the piston to be tested on the placement component to rotate around its axis, so that the image acquisition component can capture images of the circumference of the compensation hole of the piston to be tested.

4. The brake master cylinder piston compensation hole defect detection mechanism according to claim 1, characterized in that: The image acquisition component includes a support base arranged on the placement table and a camera arranged on the support base, and the camera head of the camera faces the piston to be tested.

5. The brake master cylinder piston compensation hole defect detection mechanism according to claim 4, characterized in that: A mounting seat is arranged between the camera and the supporting seat, and the camera is detachably connected to the supporting seat through the mounting seat.

6. The brake master cylinder piston compensation hole defect detection mechanism according to claim 5, characterized in that: The mounting seat is slidably connected to the supporting seat along the height direction of the supporting seat to adjust the height of the camera.

7. The brake master cylinder piston compensation hole defect detection mechanism according to claim 2, characterized in that: It also includes a light source component, which is directly facing the piston to be tested on the placement component and is used to illuminate the compensation hole of the piston to be tested.

8. The brake master cylinder piston compensation hole defect detection mechanism according to claim 1, characterized in that: It also includes a waste box, which is set on the placement table and is used to collect pistons with protrusions detected by the detection component.

9. The brake master cylinder piston compensation hole defect detection mechanism according to any one of claims 1 to 8, characterized in that: It also includes a display screen, which is mounted on the placement table. The display screen is electrically connected to the detection component, and the display screen is used to display the detection result of the detection component in real time.

10. The brake master cylinder piston compensation hole defect detection mechanism according to claim 3, characterized in that: It also includes a controller, on which at least two control buttons are arranged, the control buttons are electrically connected to the image acquisition component and the rotating member respectively, and the two control buttons are used to control the image acquisition component and the rotating member to start and shut down respectively.

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