Cable bending tester

Abstract

This utility model discloses a cable bending test machine, specifically relating to the field of cable testing technology. It includes a housing, with an upper panel and a lower panel fixedly mounted at the front end of the housing. A rotating shaft is fixedly threaded through the upper panel, and a protractor is fitted onto the rotating shaft. The protractor is fixed to the upper panel. A fixing mechanism is fixedly mounted at the front end of the rotating shaft. The fixing mechanism includes transverse and longitudinal slide rails distributed front to back. Two symmetrically distributed clamping blocks are connected to the longitudinal slide rail for clamping the cable. A long plate is provided at the front end of the lower panel. This utility model uses the transverse and longitudinal slide rails to fix the cable, facilitating cable position adjustment. The rotating shaft drives the cable to rotate for bending tests. Simultaneously, the protractor allows for precise control of the bending angle. Compared to traditional manual bending tests, this device is simple to operate, very quick to use, greatly improving testing efficiency, and also enhancing the accuracy of the bending test.

Description

Technical Field

[0001] This utility model relates to the field of cable testing technology, and more specifically to a cable bending tester. Background Technology

[0002] Cables are inevitably subjected to bending during installation, laying, and operation. Bending can cause insulation cracking and sheath damage, leading to leakage or short circuits. Their performance should not be degraded or damaged under bending conditions; therefore, bending performance is a crucial component of cable testing. Traditional cable bending tests are typically conducted manually, which is difficult and inefficient. Currently, cable bending testing machines are used to improve bending efficiency.

[0003] For example, a cable bending tester with prior art publication number CN219046048U has a simple structure and can easily adjust the bending radius of the bending part of the cable under test to facilitate durability testing of the cable under test in various bending states.

[0004] However, the existing technology described above still has the following problems in use: traditional cable bending testing machines cannot accurately set different angles for bending tests, and angle adjustment is prone to errors, resulting in low accuracy of the bending test. Therefore, this invention provides a cable bending testing machine with high accuracy and efficiency. Utility Model Content

[0005] To overcome the aforementioned deficiencies of the prior art, this utility model provides a cable bending test machine. The cable is fixed by a combination of transverse and longitudinal slide rails, facilitating cable position adjustment. A rotating shaft drives the cable to rotate for bending tests. Simultaneously, a protractor is included for precise control of the bending angle. Compared to traditional manual bending tests, this device is simple to operate and very quick to use, greatly improving testing efficiency and accuracy, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cable bending tester, comprising a housing, an upper panel and a lower panel fixedly disposed at the front end of the housing, a rotating shaft fixedly passing through the upper panel, a protractor sleeved on the rotating shaft, the protractor being fixed to the upper panel, a fixing mechanism fixedly disposed at the front end of the rotating shaft, the fixing mechanism comprising a transverse slide rail and a longitudinal slide rail distributed front and rear, two symmetrically distributed clamping blocks connected to the longitudinal slide rail for clamping the cable, a long plate disposed at the front end of the lower panel, the long plate being mounted on the lower panel via an adjustment mechanism, a rectangular groove being formed at the front end of the long plate, and two limiting rods being disposed inside the rectangular groove.

[0007] In a preferred embodiment, the adjustment mechanism includes a slide groove, a slider is slidably disposed inside the slide groove, the rear end of the long plate is fixed to the front end of the slider, and the slider and the slide groove are fixed by fastening bolts, which facilitates the adjustment of the height of the long plate.

[0008] In a preferred embodiment, a servo motor is fixedly installed inside the housing, and the servo motor is connected to the rotating shaft through a gearbox. The servo motor drives the rotating shaft to rotate, thereby improving the efficiency of the bending test.

[0009] In a preferred embodiment, a first lead screw is rotatably mounted on the transverse slide rail, and two first nut blocks are threadedly connected to the first lead screw. The two first nut blocks and the first lead screw have opposite thread directions, so that the two first nut blocks move in opposite directions. The two first nut blocks are respectively fixed to two clamping blocks, and the height of the transverse slide rail can be easily adjusted by using the first lead screw and the first nut blocks.

[0010] In a preferred embodiment, a second lead screw is rotatably mounted on the longitudinal slide rail, and a second nut block is threadedly connected to the second lead screw. The front end of the second nut block is fixed to the rear end of the transverse slide rail. The two second nut blocks on the second lead screw drive the two clamping blocks to move respectively, thereby achieving synchronous movement of the two clamping blocks and improving the cable fixing speed.

[0011] In a preferred embodiment, a crank handle is fixedly provided at both ends of the first lead screw and at the top of the second lead screw. The crank handle is located in front of the protractor to facilitate the operator to quickly adjust the position of the transverse slide rail and the clamping block.

[0012] In a preferred embodiment, a pad is fixedly provided at the front end of the housing, and multiple evenly distributed support legs are fixedly provided at the bottom of the pad and the bottom of the housing. Providing multiple support legs can improve the stability of the pad and the housing.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model uses a combination of transverse and longitudinal slide rails to fix the cable, which facilitates the adjustment of the cable position and allows for flexible testing. It also uses a rotating shaft to drive the cable to rotate for bending tests. At the same time, a protractor is provided to facilitate precise control of the bending angle. Compared with the traditional manual bending test, this device is simple to operate and very quick to use, which greatly improves the testing efficiency and the accuracy of the bending test.

[0015] 2. By setting two limiting rods below the fixing mechanism, the two limiting rods can prevent the cable from swaying left and right and affecting the bending test. The height of the limiting rods can be quickly adjusted by pushing the slider to move in the groove, which improves practicality. In addition, the distance between the two limiting rods can also be adjusted to accommodate cables of different thicknesses. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a front view of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the fixing mechanism structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the servo motor, gearbox, and shaft of this utility model;

[0020] Figure 5 This is a schematic diagram of the long plate and adjustment mechanism of this utility model.

[0021] The attached diagram is labeled as follows: 1. Housing; 2. Top panel; 3. Bottom panel; 4. Rotating shaft; 5. Protractor; 6. Fixing mechanism; 7. Long plate; 8. Adjustment mechanism; 9. Rectangular groove; 10. Limiting rod; 11. Servo motor; 12. Gearbox; 13. Crank handle; 14. Pad; 15. Support leg;

[0022] 61. Transverse slide rail; 611. First lead screw; 612. First nut block; 62. Longitudinal slide rail; 621. Second lead screw; 622. Second nut block; 63. Clamping block;

[0023] 81. Slide groove; 82. Slider. Detailed Implementation

[0024] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Refer to the instruction manual appendix Figures 1-5This utility model provides a cable bending test machine, including a housing 1. The front end of the housing 1 is fixedly provided with an upper panel 2 and a lower panel 3. A rotating shaft 4 is fixedly passed through the upper panel 2. A protractor 5 is sleeved on the rotating shaft 4 and fixed to the upper panel 2. A fixing mechanism 6 is fixedly provided at the front end of the rotating shaft 4. The fixing mechanism 6 includes a transverse slide rail 61 and a longitudinal slide rail 62 distributed front and rear. Two symmetrically distributed clamping blocks 63 are connected to the longitudinal slide rail 62 for clamping the cable. The front end of the lower panel 3 is provided with a long plate 7. The front end of the long plate 7 has a rectangular groove 9. Two limiting rods 10 are provided inside the rectangular groove 9. Both limiting rods 10 are fixed to the long plate 7 by bolts.

[0026] A servo motor 11 is fixedly installed inside the housing 1. The servo motor 11 is connected to the rotating shaft 4 through a gearbox 12. The gearbox 12 is configured to cooperate with the servo motor 11. The gearbox 12 amplifies the output torque of the servo motor 11 through a mechanical transmission ratio, which is suitable for bending tests of large-specification cables. Furthermore, the gearbox 12 shares the load through a mechanical structure, preventing the servo motor 11 from operating under overload conditions for a long time.

[0027] In actual use, the operator first fixes one end of the cable between two clamps 63. Then, the operator uses the control panel on the housing 1 to control the servo motor 11 to drive the rotating shaft 4 to rotate. The rotating shaft 4 drives the longitudinal slide rail 62, the transverse slide rail 61, and the cable to rotate clockwise and counterclockwise at a specified angle, thus automatically performing a bending test. At the same time, the lower part of the cable is placed between two limit rods 10. The two limit rods 10 can prevent the cable from swaying left and right and affecting the bending test. After the test is completed, the operator removes the cable and puts the cable to be tested back in. Compared with the traditional manual bending test, this device is simple to operate and very quick to use, which greatly improves the test efficiency. In addition, the control panel can improve the accuracy of the bending test.

[0028] In this embodiment, a first lead screw 611 is rotatably mounted on the transverse slide rail 61. Two first nut blocks 612 are threadedly connected to the first lead screw 611. The threads of the two first nut blocks 612 and the first lead screw 611 are opposite in direction, so that the two first nut blocks 612 move in opposite directions. The two first nut blocks 612 are respectively fixed to two clamping blocks 63.

[0029] A second lead screw 621 is rotatably mounted on the longitudinal slide rail 62. A second nut block 622 is threaded onto the second lead screw 621. The front end of the second nut block 622 is fixed to the rear end of the transverse slide rail 61. A crank handle 13 is fixedly mounted on both ends of the first lead screw 611 and the top end of the second lead screw 621. The crank handle 13 is located in front of the protractor 5.

[0030] During cable bending tests, operators can rotate the second lead screw 621 by turning the crank 13 on the second lead screw 621. The second nut block 622 on the second lead screw 621 causes the transverse slide rail 61 to move up and down, facilitating the adjustment of the height of the transverse slide rail 61. At the same time, turning the crank 13 on the first lead screw 611 drives the first lead screw 611 to rotate, and the two first nut blocks 612 on the first lead screw 611 move synchronously, thereby achieving synchronous adjustment of the two clamping blocks 63. This allows operators to quickly adjust the two clamping blocks 63 to clamp the cable. Furthermore, since the clamping blocks 63 are fixed to the first nut blocks 612 by bolts, it is easy to disassemble and replace the clamping blocks 63.

[0031] Refer to the instruction manual appendix Figure 1 , Figure 2 and Figure 5 The long plate 7 is mounted on the lower panel 3 via an adjustment mechanism 8. The adjustment mechanism 8 includes a slide groove 81, and a slider 82 is slidably disposed inside the slide groove 81. The rear end of the long plate 7 is fixed to the front end of the slider 82, and the slider 82 is fixed to the slide groove 81 by fastening bolts.

[0032] The operator loosens the fastening bolts on the slider 82 and then pushes the slider 82 up and down to adjust the position of the two limit rods 10. At the same time, the bolts fixing the limit rods 10 can be loosened to adjust the distance between the two limit rods 10, so that cables of different thicknesses can be used within a certain range.

[0033] A pad 14 is fixedly provided at the front end of the housing 1. Multiple evenly distributed support legs 15 are fixedly provided at the bottom of the pad 14 and the bottom of the housing 1. The multiple support legs 15 can improve the stability of the pad 14 and the housing 1.

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cable bending tester comprising a housing (1), characterised in that: The front end of the housing (1) is fixedly provided with an upper panel (2) and a lower panel (3). A rotating shaft (4) is fixedly passed through the upper panel (2). A protractor (5) is sleeved on the rotating shaft (4). The protractor (5) is fixed to the upper panel (2). A fixing mechanism (6) is fixedly provided at the front end of the rotating shaft (4). The fixing mechanism (6) includes a transverse slide rail (61) and a longitudinal slide rail (62) distributed in front and back. Two symmetrically distributed clamping blocks (63) are connected to the longitudinal slide rail (62) for clamping the cable. The lower panel (3) has a long plate (7) at its front end. The long plate (7) is installed on the lower panel (3) through an adjustment mechanism (8). The front end of the long plate (7) has a rectangular groove (9), and two limiting rods (10) are provided inside the rectangular groove (9).

2. The cable bend tester of claim 1, wherein: The adjustment mechanism (8) includes a slide groove (81), inside which a slider (82) is slidably disposed. The rear end of the long plate (7) is fixed to the front end of the slider (82), and the slider (82) is fixed to the slide groove (81) by fastening bolts.

3. The cable bend tester of claim 1, wherein: A servo motor (11) is fixedly installed inside the housing (1), and the servo motor (11) is connected to the rotating shaft (4) through a gearbox (12).

4. The cable bend tester of claim 1, wherein: A first lead screw (611) is rotatably mounted on the transverse slide rail (61). Two first nut blocks (612) are threadedly connected to the first lead screw (611). The threads of the two first nut blocks (612) and the first lead screw (611) are opposite, so that the two first nut blocks (612) move in opposite directions. The two first nut blocks (612) are respectively fixed to two clamping blocks (63).

5. The cable bend tester of claim 4, wherein: A second lead screw (621) is rotatably mounted on the longitudinal slide rail (62), and a second nut block (622) is threadedly connected to the second lead screw (621). The front end of the second nut block (622) is fixed to the rear end of the transverse slide rail (61).

6. The cable bend tester of claim 5, wherein: A crank handle (13) is fixedly provided at both ends of the first lead screw (611) and at the top of the second lead screw (621), and the crank handle (13) is located in front of the protractor (5).

7. The cable bend tester of claim 1, wherein: A pad (14) is fixedly provided at the front end of the housing (1), and multiple evenly distributed support legs (15) are fixedly provided at the bottom of the pad (14) and the bottom of the housing (1).

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