A cylinder detection device

Abstract

The utility model belongs to surface detection equipment technical field, specifically disclose a kind of oil cylinder detection equipment, including table frame, detection module and positioning tool, positioning tool is installed in table frame, detection module includes first detection component, second detection component and third detection component, first detection component and second detection component are respectively set in the length direction of the two sides of positioning tool, third detection component is set at the position between first detection component and second detection component and located the back side of positioning tool;By setting multiple adjustable detection components and positioning tool, the synchronous detection of oil cylinder multiple angle, multiple position is realized, the problem that traditional detection method is inefficient, poor consistency is solved, with the advantages of improving detection efficiency, guaranteeing detection consistency and accuracy, adapting different specifications oil cylinder detection demand.

Description

Technical Field

[0001] This utility model belongs to the technical field of surface inspection equipment, and in particular relates to a hydraulic cylinder inspection device. Background Technology

[0002] As the core actuator of hydraulic or pneumatic systems, the surface quality of hydraulic cylinders directly affects the reliability and service life of the equipment. Under high-pressure working environments, even minor surface defects such as cracks, rust, and scratches can become stress concentration points, leading to fatigue failure or even explosion of the cylinder wall.

[0003] Traditional inspection methods primarily rely on manual visual inspection or simple tool-assisted testing. This approach is not only inefficient but also highly susceptible to operator subjectivity, making it difficult to guarantee consistency and accuracy. While some automated inspection equipment has emerged, these devices generally suffer from fixed structures and inconvenient adjustments, failing to meet the inspection needs of different cylinder sizes. Particularly in comprehensive multi-angle, multi-position inspections, existing equipment often requires multiple clamping and adjustments, severely impacting inspection efficiency. Furthermore, the layout of existing equipment's inspection modules is unreasonable, hindering simultaneous inspection of critical cylinder components and resulting in incomplete inspection data.

[0004] To address the aforementioned issues, existing technologies urgently need improvement. Utility Model Content

[0005] The purpose of this invention is to provide a hydraulic cylinder testing device that has the advantages of improving testing efficiency, ensuring testing consistency and accuracy, and adapting to the testing needs of hydraulic cylinders of different specifications, so as to solve the problems of low efficiency and poor consistency of traditional testing methods.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: a hydraulic cylinder testing device, including a table frame, a testing module and a positioning fixture, wherein the positioning fixture is installed on the table frame, and the testing module includes a first testing component, a second testing component and a third testing component, wherein the first testing component and the second testing component are respectively disposed on both sides of the length direction of the positioning fixture, and the third testing component is disposed between the first testing component and the second testing component and located on the rear side of the positioning fixture.

[0007] Furthermore, the positioning fixture includes a positioning bracket and positioning blocks. The positioning bracket is a "gate"-shaped bracket consisting of two vertically arranged support plates and a horizontal positioning plate arranged between the two support plates. Multiple positioning blocks are provided, and multiple positioning blocks are installed on the top surface of the positioning plate along the length direction of the positioning plate. The top surface of the positioning block is provided with a recessed positioning slot, and the positioning block positions and fixes the hydraulic cylinder through the positioning slot.

[0008] Furthermore, the detection module also includes a bracket. The first detection component includes a bottom camera I, a rear camera I, and a top camera I. The bottom camera is mounted on the table frame and located below the positioning horizontal plate. The positioning horizontal plate has a first clearance groove corresponding to the position of the bottom camera. The rear camera I and the top camera I are respectively mounted on the table frame with adjustable height via the bracket. The rear camera I is located behind the positioning horizontal plate, and the top camera I is located above the positioning horizontal plate.

[0009] Furthermore, the second detection component includes a side camera and a bottom camera II. The side camera is mounted on the table frame via a bracket and is located at the end near the longitudinal end of the positioning horizontal plate. The side camera can be adjusted to move vertically, and the axis of the side camera and the central axis of the positioning horizontal plate are in the same vertical plane. The bottom camera II is slidably mounted on the table frame via a linear sliding pair and is located below the positioning horizontal plate. The bottom camera II can be driven to slide along the longitudinal direction of the positioning horizontal plate, and the positioning horizontal plate is provided with a second clearance groove corresponding to the position of the bottom camera.

[0010] Furthermore, the third detection component includes a light-shielding platform, a rear camera II, and a top camera II. The light-shielding platform is vertically installed on the table frame and located behind the positioning fixture. The light-shielding platform has an upper slide and a lower slide arranged sequentially from top to bottom. The upper slide is located above the positioning horizontal plate. Multiple top cameras II are provided, and multiple top cameras II are slidably installed on the upper slide. The rear camera II is slidably installed on the lower slide, and in the vertical direction, the height of the rear camera is not lower than the height of the positioning horizontal plate.

[0011] Furthermore, the first detection component also includes a supplementary light, which is mounted on the same bracket as the top camera I, and the supplementary light is located between the top camera I and the positioning plate.

[0012] Furthermore, it also includes a protective cover, which is installed on the table frame, and the detection module and positioning fixture are both located inside the protective cover.

[0013] The beneficial effects of this technical solution are as follows:

[0014] This utility model discloses a hydraulic cylinder testing device. By setting up multiple sets of adjustable testing components and positioning fixtures, it realizes synchronous testing of hydraulic cylinders at multiple angles and positions, solving the problems of low efficiency and poor consistency of traditional testing methods. It has the advantages of improving testing efficiency, ensuring testing consistency and accuracy, and adapting to the testing needs of hydraulic cylinders of different specifications. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a hydraulic cylinder testing device according to the present invention;

[0016] Figure 2This is a schematic diagram of the internal structure of a hydraulic cylinder testing device according to the present invention;

[0017] Figure 3 This is a schematic diagram of the positioning fixture for a hydraulic cylinder testing device according to the present invention;

[0018] Figure 4 This is a schematic diagram of the detection module of a hydraulic cylinder testing device according to the present invention. Detailed Implementation

[0019] The following detailed description illustrates the specific implementation method:

[0020] The reference numerals in the accompanying drawings include: table frame 1, protective cover 2, positioning fixture 3, rear camera I 4, top camera I 5, fill light 6, bracket 7, light shield 8, upper slide 9, top camera II 10, side camera 11, linear sliding pair 12, positioning horizontal plate 13, supporting vertical plate 14, positioning block 15, second clearance groove 16, limit block 17, bottom camera II 18, lower slide 19, rear camera II 20, bottom camera I 21.

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. In this embodiment, "front" refers to the side facing the operator, and "rear" refers to the side away from the operator. This is understandable to those skilled in the art and will not be elaborated here.

[0022] The basic implementation examples are as follows: Figure 1-4 As shown: A hydraulic cylinder testing device includes a table frame 1, a testing module, and a positioning fixture 3. The positioning fixture 3 is mounted on the table frame 1. The testing module includes a first testing component, a second testing component, and a third testing component. The first and second testing components are respectively positioned on opposite sides of the positioning fixture 3 along its length. The third testing component is positioned between the first and second testing components and located behind the positioning fixture 3. The table frame 1, as a supporting structure, can be constructed using a steel frame or aluminum alloy profiles. The arrangement of the three testing components ensures comprehensive testing of the hydraulic cylinder under inspection without interfering with its installation or removal. Compared to traditional methods relying on manual visual inspection, this device significantly improves testing efficiency and accuracy while avoiding missed inspections caused by human factors.

[0023] In this embodiment, the positioning fixture 3 includes a positioning bracket 7 and positioning blocks 15. The positioning bracket 7 is a "gate"-shaped bracket 7 composed of two vertically arranged support plates 14 and a horizontal positioning plate 13 disposed between the two support plates 14. Multiple positioning blocks 15 are provided, and the multiple positioning blocks 15 are installed on the top surface of the positioning plate 13 along its length. The top surface of the positioning blocks 15 is provided with recessed positioning slots, through which the positioning blocks 15 position and fix the hydraulic cylinder. As a preferred embodiment, the positioning plate 13 is also provided with a limiting block 17, which is disposed at the end of the positioning plate 13 near the first detection component, further positioning the hydraulic cylinder to be tested. Specifically, the positioning bracket 7 adopts a "gate"-shaped structure, consisting of two support plates 14 and one positioning plate 13. This structure provides stable support and facilitates the installation and testing of the hydraulic cylinder. The number of positioning blocks 15 can be adjusted according to the length of the hydraulic cylinder and the testing requirements. The positioning bayonet design can accommodate hydraulic cylinders of different diameters. Its concave structure secures the cylinder in a predetermined position, preventing displacement during testing. As a preferred embodiment, the positioning bayonet can be V-shaped or U-shaped to accommodate different cylinder surface shapes. Furthermore, the positioning block 15 can be made of a wear-resistant and elastic material to reduce wear on the cylinder surface. Thus, this technical solution, through the "gate"-shaped bracket 7 and the positioning block 15 with the positioning bayonet, achieves rapid positioning and fixation of the hydraulic cylinder, solving the problems of unstable cylinder fixation and easy displacement during testing in existing technologies. Compared with existing technologies, this solution has a simple structure, is easy to operate, and can effectively improve the accuracy and efficiency of testing.

[0024] In this embodiment, the detection module further includes a bracket 7. The first detection component includes a bottom camera I21, a rear camera I4, and a top camera I5. The bottom camera is mounted on the table frame 1 and located below the positioning horizontal plate 13. The positioning horizontal plate 13 has a first clearance groove corresponding to the position of the bottom camera. The rear camera I4 and the top camera I5 are respectively mounted on the table frame 1 with adjustable height via the bracket 7. The rear camera I4 is located behind the positioning horizontal plate 13, and the top camera I5 is located above the positioning horizontal plate 13. Specifically, the bracket 7 is a column structure, and each camera is mounted on the bracket 7 via a mounting plate and can be height-adjusted along the bracket 7. The size of the first clearance groove must be larger than the lens diameter of the bottom camera I21. Thus, this technical solution solves the problem of blind spots in the detection of the cylinder surface through a multi-angle camera layout. The bottom camera I21 achieves unobstructed imaging of the bottom of the cylinder through the first clearance groove, while the rear camera I4 and the top camera I5 cover the rear and top detection areas, respectively. The height-adjustable design allows the camera to adapt to the inspection needs of hydraulic cylinders of different sizes, significantly improving inspection coverage and adaptability compared to fixed inspection equipment. As a preferred implementation method, the image data acquired by each camera can be synthesized by software to generate a complete three-dimensional model of the hydraulic cylinder surface, facilitating accurate identification of surface defects.

[0025] In this embodiment, the second detection component includes a side camera 11 and a bottom camera II 18. The side camera 11 is mounted on the table frame 1 via a bracket 7 and is located at the end of the positioning horizontal plate 13 along its length. It should be noted that this end is the end furthest from the first positioning component. The side camera 11 can be adjusted to move vertically, and its axis is in the same vertical plane as the central axis of the positioning horizontal plate 13. The bottom camera II 18 is slidably mounted on the table frame 1 via a linear sliding pair 12 and is located below the positioning horizontal plate 13. The bottom camera II 18 can be driven to slide along the length of the positioning horizontal plate 13. The positioning horizontal plate 13 has a second clearance groove 16 corresponding to the position of the bottom camera. Specifically, the design of the side camera 11's axis being coplanar with the central axis of the positioning horizontal plate 13, combined with the height-adjustable function of the side camera, ensures that the lens of the side camera is always directly facing the corresponding end face of the hydraulic cylinder along its axis. The size of the second clearance groove 16 is preferably designed to cover all movement paths of the bottom-mounted camera lens, ensuring that the image data acquired by the bottom-mounted camera II 18 is complete and unobstructed. Thus, this technical solution, by setting up a vertically movable side camera 11 and a horizontally movable bottom camera II 18, achieves flexible multi-angle detection of the sides and bottom of the hydraulic cylinder. The height adjustment function of the side camera 11 can adapt to the detection needs of hydraulic cylinders of different diameters, and the sliding detection method of the bottom camera II 18 can cover defect detection along the entire length of the bottom of the hydraulic cylinder. Compared with fixed detection equipment, this solution significantly improves detection coverage and adaptability, solving the problem of blind spots caused by insufficient flexibility in existing equipment; through the collaborative work of the two cameras, complete surface condition image data of the sides and bottom of the hydraulic cylinder can be acquired.

[0026] In this embodiment, the third detection component includes a light-shielding platform 8, a rear camera II 20, and a top camera II 10. The light-shielding platform 8 is vertically mounted on the table frame 1 and located behind the positioning fixture 3. The light-shielding platform 8 has an upper sliding platform 9 and a lower sliding platform 19 arranged sequentially from top to bottom. The sliding direction of both the upper and lower sliding platforms 9 and 19 is along the length of the positioning horizontal plate 13. The upper sliding platform 9 is located above the positioning horizontal plate 13. Multiple top cameras II 10 are provided, each slidably mounted on the upper sliding platform 9. The rear camera II 20 is slidably mounted on the lower sliding platform 19, and in the vertical direction, the height of the rear camera is not lower than the height of the positioning horizontal plate 13. Specifically, the light-shielding platform 8 is used to eliminate ambient light interference and improve shooting quality. The upper and lower sliding platforms 9 and 19 can use a linear guide rail structure to achieve the sliding function. The top camera II 10 can adjust its shooting position by sliding on the upper sliding platform 9, achieving detection coverage of different areas on the top of the cylinder. The rear camera II 20 slides on the lower slide platform 19, and its height is set no lower than the height of the positioning horizontal plate 13, ensuring that the shooting angle always covers the back of the cylinder. As a preferred embodiment, the upper slide platform 9 and the lower slide platform 19 can each be equipped with a servo motor drive to achieve precise positioning control. Thus, this technical solution solves the problem of poor flexibility in existing testing equipment by setting up a sliding multi-camera detection system. The setting of the light-shielding platform 8 effectively eliminates ambient light interference and improves detection accuracy. The sliding arrangement of multiple top cameras II 10 achieves full coverage detection of the top surface of the cylinder, while the sliding installation of the rear camera II 20 ensures full coverage of the back-side detection angle. Compared with fixed testing equipment, this solution significantly improves detection flexibility and adaptability, meeting the detection requirements of cylinders of different specifications, while ensuring detection accuracy and reliability.

[0027] In this embodiment, the first detection component further includes a supplementary light 6, which is mounted on the same bracket 7 as the top camera I5, and is located between the top camera I5 and the positioning plate 13. The supplementary light 6 uses an LED light source and can be a ring light or a strip light. By optimizing the installation position and structural parameters of the supplementary lighting device, the problem of unstable imaging quality in the top area of ​​the oil cylinder caused by ambient light interference is effectively solved.

[0028] This embodiment also includes a protective cover 2, which is installed on the table frame 1. The detection module and positioning fixture 3 are both located inside the protective cover 2. Specifically, the protective cover 2 can be made of transparent or semi-transparent material to facilitate observation of the internal detection process. Specifically, the protective cover 2 can be designed as an openable / closable structure, for example, through a hinged connection to allow side or top opening, facilitating the placement and removal of the hydraulic cylinder. Thus, by setting up the protective cover 2, interference from the external environment on the detection process can be effectively isolated, preventing dust, foreign objects, etc., from affecting the detection results. The protective cover 2 can reduce the impact of changes in ambient light on camera imaging, improving detection stability. Simultaneously, the protective cover 2 also provides safety protection, preventing accidental injury from equipment components during the detection process. Compared with existing technologies, this solution solves the problem of open detection equipment being susceptible to environmental interference, improving the reliability and consistency of the detection.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A hydraulic cylinder testing device, characterized in that: The device includes a table frame, a detection module, and a positioning fixture. The positioning fixture is installed on the table frame. The detection module includes a first detection component, a second detection component, and a third detection component. The first and second detection components are respectively disposed on both sides of the positioning fixture along its length. The third detection component is disposed between the first and second detection components and is located on the rear side of the positioning fixture.

2. The hydraulic cylinder testing device according to claim 1, characterized in that: The positioning fixture includes a positioning bracket and positioning blocks. The positioning bracket is a "gate"-shaped bracket consisting of two vertically arranged support plates and a horizontal positioning plate arranged between the two support plates. Multiple positioning blocks are provided, and the multiple positioning blocks are installed on the top surface of the positioning plate along the length direction of the positioning plate. The top surface of the positioning block is provided with a recessed positioning slot, and the positioning block positions and fixes the oil cylinder through the positioning slot.

3. The hydraulic cylinder testing device according to claim 2, characterized in that: The detection module also includes a bracket. The first detection component includes a bottom camera I, a rear camera I, and a top camera I. The bottom camera is mounted on the table frame and located below the positioning horizontal plate. The positioning horizontal plate has a first clearance groove corresponding to the position of the bottom camera. The rear camera I and the top camera I are respectively mounted on the table frame with adjustable height via the bracket. The rear camera I is located behind the positioning horizontal plate, and the top camera I is located above the positioning horizontal plate.

4. The hydraulic cylinder testing device according to claim 3, characterized in that: The second detection component includes a side camera and a bottom camera II. The side camera is mounted on the table frame via a bracket and is located at the end of the positioning horizontal plate along its length. The side camera can be adjusted to move vertically, and the axis of the side camera is in the same vertical plane as the central axis of the positioning horizontal plate. The bottom camera II is slidably mounted on the table frame via a linear sliding pair and is located below the positioning horizontal plate. The bottom camera II can be driven to slide along the length of the positioning horizontal plate, and the positioning horizontal plate is provided with a second clearance groove corresponding to the position of the bottom camera.

5. The hydraulic cylinder testing device according to claim 4, characterized in that: The third detection component includes a light-shielding platform, a rear camera II, and a top camera II. The light-shielding platform is vertically mounted on the table frame and located behind the positioning fixture. The light-shielding platform has an upper slide and a lower slide arranged sequentially from top to bottom. The upper slide is located above the positioning horizontal plate. Multiple top cameras II are provided, and the multiple top cameras II are slidably mounted on the upper slide. The rear cameras II are slidably mounted on the lower slide, and in the vertical direction, the height of the rear cameras is not lower than the height of the positioning horizontal plate.

6. The hydraulic cylinder testing device according to claim 5, characterized in that: The first detection component also includes a supplementary light, which is mounted on the same bracket as the top camera I, and the supplementary light is located between the top camera I and the positioning plate.

7. The hydraulic cylinder testing device according to claim 6, characterized in that: It also includes a protective cover, which is installed on the table frame, and the detection module and positioning fixture are both located inside the protective cover.

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