Cable pressure test fixture

Abstract

The application relates to the technical field of cable pressure detection equipment, and discloses a cable pressure test jig, which comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a first support, a lead screw is rotationally connected in the first support, the outer circumferential surface of the lead screw is threadedly connected with two threaded pipes, and the outer circumferential surface of each threaded pipe is fixedly connected with two positioning plates. The cable pressure test jig is provided with a control module integrated with an image processing algorithm and a touch display screen, can record, process and monitor the deformation state of the cable instead of manual operation, can gradually increase the pressure applied to the cable through the downward movement of the pressure sensor and the pressing plate driven by the air cylinder, guarantees the accuracy of the cable pressure detection result, and can move the threaded pipes in the opposite direction through the rotation of the lead screw, so that the positioning plates are moved to be retracted and extended, the cables of different sizes are positioned, the cables are prevented from deviating during the cable pressure detection process, and the accuracy of the detection result is further improved.

Description

Technical Field

[0001] This application relates to the field of cable pressure testing equipment technology, specifically cable pressure testing fixtures. Background Technology

[0002] As an important carrier for power transmission and signal transmission, the quality of cables directly affects the stability and safety of the entire system. In the cable production process, pressure testing is one of the key links to ensure cable quality. The existing manual pressure testing method involves increasing the number of weights to compress the cable, observing the deformation of the cable, counting the total mass of the weights, and judging the cable's compressive deformation limit.

[0003] However, relying on visual observation of deformation is easily affected by subjective factors, leading to errors. When loading with weights step by step, the pressure increment is fixed, making it impossible to achieve continuous and precise gradual increase, which makes it difficult to capture the threshold of subtle deformation and affects the reliability of the test results. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a cable pressure testing fixture, which has the advantages of being able to gradually increase the pressure applied to the cable and using a high-definition camera to record and monitor the cable's deformation state instead of manually, thus ensuring the accuracy of the cable pressure test results and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: a cable pressure testing fixture, comprising a base plate, a first bracket fixedly connected to the upper surface of the base plate, a lead screw rotatably connected inside the first bracket, two threaded tubes threadedly connected to the outer circumference of the lead screw, two positioning plates fixedly connected to the outer circumference of each threaded tube, a second bracket fixedly connected to the upper surface of the first bracket, a cylinder fixedly connected to the upper surface of the second bracket, a pressure sensor fixedly connected to the output end of the cylinder, a pressure plate fixedly connected to the bottom surface of the pressure sensor, a base fixedly connected to the upper surface of the base plate, a high-definition camera fixedly connected to one end of the base near the pressure plate, a control module fixedly connected to the upper surface of the base plate, the control module integrating an image processing algorithm, and a touch screen fixedly connected to the upper surface of the control module.

[0006] The above solution addresses the issue that manual pressure testing is susceptible to subjective interference and the fixed pressure increment makes it impossible to achieve continuous and precise gradual increases, thus affecting the reliability of the test results. By setting up a control module with integrated image processing algorithms and a touch screen, the system can replace manual recording, processing, and monitoring of cable deformation. By using a cylinder to drive the pressure sensor and pressure plate downwards, the pressure applied to the cable can be gradually increased, ensuring the accuracy of the cable pressure test results.

[0007] Furthermore, the lead screw is a bidirectional threaded rod, and handwheels are fixedly connected to both ends of the lead screw.

[0008] The above scheme enables the two threaded tubes to move synchronously in opposite directions, facilitating quick adjustment of the positioning plate spacing to accommodate different cable diameters and improving operational efficiency. The handwheel provides a manual control interface, allowing for convenient rotation of the lead screw via the handwheel.

[0009] Furthermore, two limiting rings are fixedly sleeved on the outer circumferential surface of the lead screw. The two limiting rings are respectively disposed on both sides of the first bracket, and the side of the limiting rings closest to the first bracket is in contact with the first bracket.

[0010] Through the above solution, the limiting ring can prevent the lead screw from moving axially, ensure that the threaded tube moves stably and linearly along the lead screw, avoid misalignment of the positioning plate due to lead screw displacement, and thus improve the stability of cable positioning.

[0011] Furthermore, the first bracket has two limiting holes inside, and the outer surface of the positioning plate is slidably connected to the first bracket through the limiting holes.

[0012] The above solution mechanically constrains the positioning plate through the limiting hole, eliminating the risk of positioning plate deflection caused by the rotation of the threaded tube, ensuring that the positioning plate always moves laterally, and improving the geometric accuracy and stability of cable positioning.

[0013] Furthermore, each of the positioning plates has an anti-slip pad fixedly connected to its outer surface, and the anti-slip pad is made of rubber.

[0014] The above solution increases the friction between the cable and the positioning plate, preventing the cable from slipping during testing. It also buffers the local pressure of the positioning plate on the cable, avoiding damage to the cable surface and improving the safety and reliability of the test.

[0015] Furthermore, two guide blocks are fixedly connected to the outer surface of the pressure plate, and two guide holes are opened inside the second bracket. The guide blocks are slidably connected to the second bracket through the guide holes respectively.

[0016] The above solution eliminates the influence of the cylinder output torque on the pressure plate by matching the guide block with the guide hole, ensuring that the pressure plate presses down vertically and preventing lateral displacement of the cable when it is under pressure, thereby improving the uniformity of pressure distribution and the accuracy of test data.

[0017] Furthermore, one side of the base is fixedly connected with equally spaced lighting lamps, which are symmetrically arranged on both sides of the high-definition camera.

[0018] The above solution eliminates shadow interference, provides a uniform lighting environment for high-definition cameras, ensures that image processing algorithms can accurately identify cable deformation features, and improves the reliability and sensitivity of visual inspection.

[0019] Furthermore, two mounting plates are fixedly connected to the outer surface of the base plate, and the mounting plates have equidistantly arranged positioning holes inside.

[0020] The above solution provides a standardized mechanical interface for mounting plates and positioning holes, making it easy to fix fixtures to test benches or production lines.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This cable pressure testing fixture, with its integrated image processing algorithm control module and touch screen, can replace manual recording, processing, and monitoring of cable deformation. By using a cylinder to drive the pressure sensor and pressure plate downwards, the pressure applied to the cable can be gradually increased, ensuring the accuracy of the cable pressure test results. Rotating the lead screw moves the threaded tube in the opposite direction, causing the positioning plate to move and retract, positioning cables of different sizes and preventing deviation during cable pressure testing, further improving the accuracy of the test results. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0024] Figure 2 This is a side view of the overall structure of this application;

[0025] Figure 3 This is a top view of the overall structure of this application;

[0026] Figure 4 This is a structural diagram of the first support structure in this application;

[0027] Figure 5 This is a structural diagram of the second support structure in this application.

[0028] In the picture:

[0029] 1. Base plate; 2. First bracket; 3. Lead screw; 4. Threaded tube; 5. Positioning plate; 6. Second bracket; 7. Cylinder; 8. Pressure sensor; 9. Pressure plate; 10. Base; 11. High-definition camera; 12. Control module; 13. Touch screen; 14. Limit ring; 15. Limit hole; 16. Anti-slip pad; 17. Guide block; 18. Guide hole; 19. Lighting lamp; 20. Mounting plate. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 1 , Figure 2 and Figure 4 The cable pressure testing fixture in this embodiment includes a base plate 1. A first bracket 2 is fixedly connected to the upper surface of the base plate 1. A lead screw 3 is rotatably connected inside the first bracket 2. Two threaded tubes 4 are threadedly connected to the outer circumference of the lead screw 3. Two positioning plates 5 are fixedly connected to the outer circumference of each threaded tube 4. A second bracket 6 is fixedly connected to the upper surface of the first bracket 2. A cylinder 7 is fixedly connected to the upper surface of the second bracket 6. A pressure sensor 8 is fixedly connected to the output end of the cylinder 7. A pressure plate 9 is fixedly connected to the bottom surface of the pressure sensor 8. A base 10 is fixedly connected to the upper surface of the base plate 1. A high-definition camera 11 is fixedly connected to the end of the base 10 near the pressure plate 9. A control module 12 is fixedly connected to the upper surface of the base plate 1. The control module 12 integrates an image processing algorithm. A touch screen 13 is fixedly connected to the upper surface of the control module 12.

[0032] Please see Figure 1 , Figure 3 and Figure 4 The lead screw 3 is a bidirectional threaded rod, and handwheels are fixedly connected to both ends of the lead screw 3. The bidirectional threaded design can realize the synchronous movement of the two threaded tubes 4 in opposite directions, which facilitates the quick adjustment of the spacing of the positioning plates 5 to adapt to different cable diameters and improves operating efficiency. The handwheel provides a manual control interface, which makes it convenient to rotate the lead screw 3 through the handwheel.

[0033] Please see Figure 1 , Figure 3 and Figure 4 Two limiting rings 14 are fixedly sleeved on the outer circumference of the lead screw 3. The two limiting rings 14 are respectively set on both sides of the first bracket 2. The side of the limiting ring 14 closest to the first bracket 2 contacts the first bracket 2. The limiting rings 14 can prevent the lead screw 3 from moving axially, ensure that the threaded tube 4 moves stably and linearly along the lead screw 3, and avoid the positioning plate 5 from being misaligned due to the displacement of the lead screw 3, thereby improving the stability of cable positioning.

[0034] Please see Figure 1 , Figure 3 and Figure 4The first bracket 2 has two limiting holes 15 inside. The outer surface of the positioning plate 5 is slidably connected to the first bracket 2 through the limiting holes 15. The limiting holes 15 mechanically constrain the positioning plate 5, eliminate the risk of the positioning plate 5 deflection caused by the rotation of the threaded tube 4, and ensure that the positioning plate 5 always moves laterally, thereby improving the geometric accuracy and stability of cable positioning.

[0035] Please see Figure 1 and Figure 4 Each positioning plate 5 has an anti-slip pad 16 fixedly connected to its outer surface. The anti-slip pad 16 is made of rubber. The rubber anti-slip pad 16 can increase the friction between the cable and the positioning plate 5, prevent the cable from slipping during the test, and at the same time buffer the local pressure of the positioning plate 5 on the cable, avoid damage to the cable surface, and improve the safety and reliability of the test.

[0036] Please see Figure 1 , Figure 2 and Figure 5 Two guide blocks 17 are fixedly connected to the outer surface of the pressure plate 9. Two guide holes 18 are opened inside the second bracket 6. The guide blocks 17 are slidably connected to the second bracket 6 through the guide holes 18. The cooperation between the guide blocks 17 and the guide holes 18 can eliminate the influence of the rotational torque of the cylinder 7 output end on the pressure plate 9, ensure that the pressure plate 9 presses down vertically, and avoid lateral displacement when the cable is pressed, thereby improving the uniformity of pressure distribution and the accuracy of test data.

[0037] Please see Figure 1 , Figure 2 and Figure 3 An equally spaced array of lighting lamps 19 are fixedly connected to one side of the base 10. The lighting lamps 19 are symmetrically arranged on both sides of the high-definition camera 11. Symmetrical lighting can eliminate shadow interference, provide a uniform lighting environment for the high-definition camera 11, ensure that the image processing algorithm can accurately identify cable deformation characteristics, and improve the reliability and sensitivity of visual inspection.

[0038] Please see Figure 1 and Figure 3 Two mounting plates 20 are fixedly connected to the outer surface of the base plate 1. The mounting plates 20 have equidistantly arranged positioning holes inside. The mounting plates 20 and the positioning holes provide a standardized mechanical interface, which makes it easy to fix the fixture to the test bench or production line.

[0039] The cable pressure testing fixture in this embodiment, by setting up a control module 12 with integrated image processing algorithm and a touch screen 13, can replace manual recording, processing and monitoring of cable deformation. By driving the pressure sensor 8 and pressure plate 9 downward by the cylinder 7, the pressure applied to the cable can be gradually increased, ensuring the accuracy of the cable pressure test results. By rotating the lead screw 3, the threaded tube 4 is moved in the opposite direction, causing the positioning plate 5 to move and retract, positioning cables of different sizes, avoiding deviation during cable pressure testing, and further improving the accuracy of the test results.

[0040] It should be noted that the outer circumferential surfaces of the handwheels at both ends of the lead screw 3 are provided with equidistant anti-slip protrusions, which can increase the friction between the handwheel and the palm, and provide convenience for the rotation operation of the handwheel and the lead screw 3.

[0041] The working principle of the above embodiments is as follows:

[0042] During cable pressure testing, the cable is placed on the first support 2, with the portion of the cable to be tested positioned below the pressure plate 9. Then, the screw 3 is rotated via handwheel to move the threaded tube 4 in the opposite direction. The threaded tube 4 moves the positioning plate 5 and anti-slip pad 16 inwards, clamping and positioning the cable to prevent slippage during subsequent tensile testing, which would affect the test results. The cylinder 7 is activated to drive the pressure sensor 8 and pressure plate 9 downwards, compressing the cable and gradually increasing the pressure applied. During the compression process, the pressure sensor 8 collects pressure data in real time and transmits it to the control module 12. The pressure data is displayed on the touch screen 13. The high-definition camera 11 captures cable deformation images under uniform illumination provided by the symmetrical lighting lamp 19 and feeds the image information back to the control module 12, as well as displaying the image on the touch screen 13. This achieves gradual pressure increase and dynamic monitoring. The control module 12 identifies deformation characteristics using image processing algorithms. When the deformation reaches a preset threshold, the control module 12 automatically shuts off the cylinder 7. Combined with the pressure data detected by the pressure sensor 8, a test report is generated and displayed intuitively on the touch screen 13.

[0043] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cable pressure test fixture comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is fixedly connected to a first bracket (2), and the inside of the first bracket (2) is rotatably connected to a lead screw (3). The outer circumferential surface of the lead screw (3) is threaded with two threaded tubes (4). The outer circumferential surface of each threaded tube (4) is fixedly connected to two positioning plates (5). The upper surface of the first bracket (2) is fixedly connected to a second bracket (6). The upper surface of the second bracket (6) is fixedly connected to a cylinder (7). The output end of the cylinder (7) is fixedly connected to a pressure sensor (8). The bottom surface of the pressure sensor (8) is fixedly connected to a pressure plate (9). The upper surface of the base plate (1) is fixedly connected to a base (10). The end of the base (10) near the pressure plate (9) is fixedly connected to a high-definition camera (11). The upper surface of the base plate (1) is fixedly connected to a control module (12). The control module (12) integrates an image processing algorithm. The upper surface of the control module (12) is fixedly connected to a touch screen (13).

2. The cable stress testing fixture of claim 1, wherein: The lead screw (3) is a bidirectional threaded rod, and handwheels are fixedly connected to both ends of the lead screw (3).

3. The cable stress testing fixture of claim 1, wherein: Two limiting rings (14) are fixedly sleeved on the outer circumferential surface of the lead screw (3). The two limiting rings (14) are respectively set on both sides of the first bracket (2). The side of the limiting ring (14) closest to the first bracket (2) is in contact with the first bracket (2).

4. The cable stress testing fixture of claim 1, wherein: The first bracket (2) has two limiting holes (15) inside, and the outer surface of the positioning plate (5) is slidably connected to the first bracket (2) through the limiting holes (15).

5. The cable stress testing fixture of claim 1, wherein: Each of the positioning plates (5) has an anti-slip pad (16) fixedly connected to its outer surface. The anti-slip pad (16) is made of rubber.

6. The cable stress testing fixture of claim 1, wherein: Two guide blocks (17) are fixedly connected to the outer surface of the pressure plate (9), and two guide holes (18) are opened inside the second bracket (6). The guide blocks (17) are slidably connected to the second bracket (6) through the guide holes (18).

7. The cable stress testing fixture of claim 1, wherein: One side of the base (10) is fixedly connected to an equally spaced lighting lamp (19), which is symmetrically arranged on both sides of the high-definition camera (11).

8. The cable stress testing fixture of claim 1, wherein: Two mounting plates (20) are fixedly connected to the outer surface of the base plate (1), and the mounting plates (20) have equidistantly arranged positioning holes inside.

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