Wire end connection strength testing device of power supply cabinet

Abstract

The utility model discloses a wire end connection strength testing device of a power supply cabinet, and particularly relates to the technical field of wire end testing of the power supply cabinet, which comprises a working table, two U-shaped fixing frames are arranged at the top of the working table, first electric telescopic rods are fixedly arranged in the two U-shaped fixing frames, and an adjusting mechanism is arranged on one side of each first electric telescopic rod. The adjusting mechanism comprises a fixing plate fixedly arranged at the output end of the first electric telescopic rod, two guide rods are fixedly arranged on one side of the U-shaped fixing frame, one end of each guide rod penetrates through the fixing plate and extends towards the outside of the fixing plate, a stabilizing plate is fixedly arranged on the inner wall of the U-shaped fixing frame, and mounting grooves are formed in the surfaces of the fixing plate and the stabilizing plate. And a T-shaped mounting block is arranged in the mounting groove in a sliding manner. The wire end fixing device can be flexibly adapted to wire ends with different sizes, the rubber layer protects the wire ends and realizes stable fixation, and the connection strength of the wire ends can be accurately tested.

Description

Technical Field

[0001] The utility model relates to the technical field of power cabinet wire end testing, and more specifically, to a wire end connection strength testing device for a power cabinet. Background Art

[0002] G01N is an international patent classification number, belonging to the technical field of "testing or analyzing materials by measuring the chemical or physical properties of materials", covering many technologies for testing various properties of materials, such as the stability of wire connection under the action of tension and vibration. When the power cabinet is connecting the line, the strength test of the connected circuit line will be carried out to ensure that the connected circuit line has a certain tensile strength, which can prevent the circuit line from being torn or broken, and ensure the service life;

[0003] In the past, circuit line strength tests were mostly performed manually, that is, workers pulled the circuit lines by hand for testing. However, due to individual differences, different people had different test results, resulting in a large error between the test results and the actual results. As a result, it was impossible to truly determine whether the connection strength of the wire ends met the requirements, which was extremely inaccurate.

[0004] After searching, a Chinese patent with the authorization announcement number CN203572724U discloses a wire end connection strength test device for a power cabinet. In this structure, the connection plate is directly installed inside the power cabinet. When the strength of the wire end needs to be tested after the circuit line is connected, the circuit line is passed around the roller, and then the wrench is pulled downward on the outside. The wrench drives the rotating plate to rotate upward around the rotating axis, so that the roller also rotates upward with the rotating plate, thereby tightening the circuit line on the roller. When the wrench is at the bottom, it is fixed. At this time, the circuit line reaches the maximum stretching state. This state is maintained for a few minutes to see whether the circuit line wire end is broken, deformed or fallen off, so as to judge whether the wire end connection strength meets the standard. The present embodiment has a simple structure and can accurately test the connection strength of the circuit line wire end. It is more accurate than the previous method of manual pulling, and the test is simple and practical.

[0005] However, when the structure is actually used, the structure of the device is relatively fixed. For circuit lines of different thicknesses and materials, the roller size and the tension transmission ratio of the wrench cannot be adjusted, resulting in a limited scope of use. It is difficult to apply to the connection strength test of circuit line ends of different specifications in various power cabinets, and the versatility is poor, which in turn affects the overall practicality. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a wire end connection strength testing device for a power cabinet to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A wire end connection strength testing device for a power supply cabinet comprises a workbench, wherein two U-shaped fixing frames are arranged on the top of the workbench, and first electric telescopic rods are fixedly arranged inside the two U-shaped fixing frames, and an adjustment mechanism is arranged on one side of the first electric telescopic rod;

[0009] The adjustment mechanism includes a fixing plate fixedly arranged at the output end of the first electric telescopic rod, two guide rods are fixedly arranged on one side of the U-shaped fixing frame, one end of the two guide rods penetrates the fixing plate and extends to the outside of the fixing plate, a stabilizing plate is fixedly arranged on the inner wall of the U-shaped fixing frame, mounting grooves are provided on the surfaces of the fixing plate and the stabilizing plate, a T-shaped mounting block is slidably arranged inside the mounting groove, an arc block is fixedly arranged on one side of the T-shaped mounting block, a rubber layer is fixedly arranged on one side of the arc block, limiting grooves are provided on the surfaces of the fixing plate and the stabilizing plate, a limiting block is slidably arranged inside the limiting groove, a plurality of threaded holes are provided on the surfaces of the limiting block, the plurality of threaded holes are threadedly connected with bolts inside.

[0010] By adopting the above technical solution: through the cooperation of the U-shaped fixing frame, the electric telescopic rod and the adjustment mechanism, different wire ends can be flexibly fixed. The limit and bolt designs are convenient for adjustment. The arc block rubber layer protects the wire ends, which is conducive to accurate testing of the connection strength of the wire ends.

[0011] As a further description of the above technical solution: a testing mechanism is provided at the bottom of the U-shaped fixed frame, and the testing mechanism includes a second electric telescopic rod fixedly arranged at the bottom of the U-shaped fixed frame, wherein the bottom of one of the second electric telescopic rods is fixedly connected to the surface of the workbench, and a movable block is fixedly arranged at the bottom of the other second electric telescopic rod, a support plate is fixedly arranged on one side of the workbench, and a stepping motor is fixedly arranged on the top of the support plate.

[0012] By adopting the above technical solution: the second electric telescopic rod, the movable block and the stepper motor cooperate with each other, and through reasonable structural design, it can effectively produce displacement changes and accurately simulate the external force to apply tension to the wire head, which is conducive to scientifically and accurately testing the connection strength of the power cabinet wire head.

[0013] As a further description of the above technical solution: a threaded shaft is fixedly provided at the output end of the stepper motor, one end of the threaded shaft passes through the movable block and is connected to the internal thread of the movable block, a movable groove is opened on the surface of the workbench, the movable block is slidably connected to the movable groove, two third electric telescopic rods are fixedly provided at the bottom of the workbench, a bottom plate is fixedly provided at the bottom of the two third electric telescopic rods, a plurality of universal wheels are fixedly provided at the bottom of the bottom plate, a displacement sensor is fixedly provided on the surface of one of the U-shaped fixed frames, a tension sensor is embedded in the inner wall of one of the arc blocks, and a controller is fixedly provided on one side of the workbench.

[0014] By adopting the above technical solution: it is easy to adjust the position and height, the displacement and tension sensors are combined with the controller to accurately detect the data, and the overall strength of the power cabinet wire connection can be tested efficiently and accurately.

[0015] Technical effects and advantages of the utility model:

[0016] 1. By setting the adjustment mechanism, compared with the existing technology, the arc blocks of different sizes can be replaced by adjusting the position of the arc block, which can be flexibly adjusted according to the thickness of the wire head, and can be easily adapted to wire heads of various specifications, effectively improving the versatility and adaptability of the device, and can meet the detection needs of wire heads of different power supply cabinets. In addition, the rubber layer on one side of the arc block can increase the friction force when clamping the wire head to ensure that the wire head is firmly fixed, avoid loosening during the test to affect the results, and prevent damage to the surface of the wire head, thereby ensuring the accuracy of the test and the integrity of the wire head. Through the control of the electric telescopic rod, the two ends of the wire head can be fixed efficiently, making it straight and stable, laying a good foundation for the smooth implementation of subsequent tensile tests, and overall helping to improve the quality and efficiency of the test;

[0017] 2. By setting up a test mechanism, compared with the existing technology, with the help of universal wheels and the third electric telescopic rod, the height of the device can be flexibly moved and accurately adjusted, which is convenient for testing at a suitable position. The operation is convenient and efficient. Moreover, through the coordinated cooperation of the stepper motor, threaded shaft, movable block and electric telescopic rod, it can simulate the actual external force situation and apply tension to the wire head stably and continuously. The tension will gradually increase with the displacement, which is in line with the actual working conditions. At the same time, displacement sensors and tension sensors are configured to transmit the wire head elongation and tension size data to the controller in real time. The controller accurately controls the number of turns of the stepper motor based on this, and comprehensively evaluates whether the connection strength of the wire head meets the standard, thereby realizing precise testing, effectively ensuring the accuracy and scientificity of the test results, and providing a reliable basis for judging the connection quality of the power cabinet wire head. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2It is a schematic diagram of the structure of the regulating mechanism of the utility model.

[0020] Figure 3 It is a schematic diagram of the disassembled structure of the regulating mechanism of the utility model.

[0021] Figure 4 For the utility model Figure 3 Enlarged structural diagram at A in the middle.

[0022] Figure 5 This is a schematic diagram of the test mechanism structure of the utility model.

[0023] The accompanying drawings are marked as follows: 1. workbench; 2. U-shaped fixing frame; 3. first electric telescopic rod; 4. fixing plate; 5. guide rod; 6. stabilizing plate; 7. T-shaped mounting block; 8. arc block; 9. rubber layer; 10. limit groove; 11. limit block; 12. bolt; 13. second electric telescopic rod; 14. movable block; 15. stepping motor; 16. threaded shaft; 17. movable groove; 18. third electric telescopic rod; 19. bottom plate; 20. universal wheel; 21. displacement sensor; 22. tension sensor; 23. controller. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0025] The embodiments of this application disclose Figure 1-5 The wire end connection strength testing device of the power cabinet shown in the figure comprises a workbench 1, two U-shaped fixing frames 2 are arranged on the top of the workbench 1, first electric telescopic rods 3 are fixedly arranged inside the two U-shaped fixing frames 2, and an adjustment mechanism is arranged on one side of the first electric telescopic rod 3;

[0026] The adjusting mechanism includes a fixing plate 4 fixedly arranged at the output end of the first electric telescopic rod 3, two guide rods 5 are fixedly arranged on one side of the U-shaped fixing frame 2, one end of the two guide rods 5 penetrates the fixing plate 4 and extends to the outside of the fixing plate 4, a stabilizing plate 6 is fixedly arranged on the inner wall of the U-shaped fixing frame 2, the surfaces of the fixing plate 4 and the stabilizing plate 6 are provided with mounting grooves, a T-shaped mounting block 7 is slidably arranged inside the mounting groove, an arc block 8 is fixedly arranged on one side of the T-shaped mounting block 7, a rubber layer 9 is fixedly arranged on one side of the arc block 8, a limiting groove 10 is arranged on the surface of the fixing plate 4 and the stabilizing plate 6, a limiting block 11 is slidably arranged inside the limiting groove 10, a plurality of threaded holes are arranged on the surface of the limiting block 11, the fixing plate 4 and the stabilizing plate 6, bolts 12 are threadedly connected to the inside of the plurality of threaded holes, the position of the arc block 8 is adjusted according to the thickness of the wire head of the power cabinet to be tested, and the position of the arc block 8 is adjusted by The controller 23 controls the first electric telescopic rod 3 to start and retract it, driving the fixed plate 4 connected thereto to move along the guide rod 5 toward the inside of the U-shaped fixed frame 2 to leave enough space for placing the wire ends, and then, place one end of the wire end of the power supply cabinet between the two arc blocks 8 in one of the U-shaped fixed frames 2, and start the first electric telescopic rod 3 again to extend it, pushing the fixed plate 4 to move outward along the guide rod 5 until the two arc blocks 8 tightly clamp the wire end to complete the fixation of one end of the wire end, and the rubber layer 9 on one side of the arc block 8 can both increase the friction with the wire end to ensure the clamping effect and avoid damaging the surface of the wire end, and then follow the same operating steps as above to fix the other end of the wire end at the adjustment mechanism corresponding to the other U-shaped fixed frame 2 to ensure that the wire end is straightened and firmly fixed between the two U-shaped fixed frames 2, so as to prepare for the subsequent tensile test;

[0027] When it is necessary to detect thread ends of different sizes, first loosen the bolt 12 on the limit block 11. At this time, the limit block 11 can slide in the limit slot 10, and then drive the limit block 11 to move to the other end of the limit slot 10, thereby releasing the fixed restriction on the T-shaped mounting block 7. The T-shaped mounting block 7 can move freely in the mounting slot, and pull the arc block 8 outward to drive the T-shaped mounting block 7 to be taken out of the mounting slot, and then replace the arc blocks 8 of different sizes. The above steps can be reversed for installation, so that the distance between the two relative arc blocks 8 can be effectively adjusted, so that the different sizes of thread ends can be better adapted, ensuring that the arc block 8 can firmly and appropriately clamp the thread ends when the thread end connection strength test is performed, thereby improving the versatility and adaptability of the device for detecting thread ends of different specifications.

[0028] Reference Figure 2-3As shown, a testing mechanism is provided at the bottom of the U-shaped fixed frame 2, and the testing mechanism includes a second electric telescopic rod 13 fixedly provided at the bottom of the U-shaped fixed frame 2, wherein the bottom of one of the second electric telescopic rods 13 is fixedly connected to the surface of the workbench 1, and a movable block 14 is fixedly provided at the bottom of the other second electric telescopic rod 13, and a support plate is fixedly provided on one side of the workbench 1, and a stepper motor 15 is fixedly provided on the top of the support plate. The stepper motor 15 is controlled to work by a controller 23, and the stepper motor 15 starts to rotate at a uniform speed, driving the threaded shaft 16 fixedly connected to its output end to rotate synchronously. Since the threaded shaft 16 and the movable block 14 are threadedly connected, and the movable block 14 is restricted in the movable groove 17 on the surface of the workbench 1 and can only slide linearly, the rotation of the threaded shaft 16 drives the movable block 14 to move horizontally and linearly along the movable groove 17;

[0029] The second electric telescopic rod 13 connected to the bottom of the movable block 14 will move with the movable block 14, thereby driving the U-shaped fixed frame 2 connected thereto to be displaced, while the other U-shaped fixed frame 2 is relatively fixed by the second electric telescopic rod 13 fixed to the workbench 1 at the bottom, so that a relative lateral displacement is generated between the two U-shaped fixed frames 2, exerting a pulling force on the thread ends, simulating the external force that the thread ends may be subjected to in actual use scenarios, and the pulling force will gradually increase with the continuous movement of the movable block 14;

[0030] At the same time, the displacement sensor 21 embedded on the surface of one of the U-shaped fixing frames 2 will monitor the moving distance of the U-shaped fixing frame 2 in real time, that is, the elongation data generated by the thread end under the action of tension, and transmit these data to the controller 23 in real time. At the same time, the tension sensor 22 embedded in the inner wall of one of the arc blocks 8 can accurately measure the tension exerted on the thread end at this moment, and also transmit the tension data to the controller 23. After receiving the data from the displacement sensor 21 and the tension sensor 22, the controller 23 will control the number of stepping turns of its stepper motor 15, and comprehensively evaluate whether the connection strength of the thread end meets the standard through the displacement and tension data, so as to perform precise strength testing.

[0031] Reference Figure 4-5As shown, a threaded shaft 16 is fixedly provided at the output end of the stepper motor 15, one end of the threaded shaft 16 passes through the movable block 14 and is threadedly connected to the inner part of the movable block 14, a movable groove 17 is provided on the surface of the workbench 1, and the movable block 14 is slidably connected to the movable groove 17, and two third electric telescopic rods 18 are fixedly provided at the bottom of the workbench 1, and a bottom plate 19 is fixedly provided at the bottom of the two third electric telescopic rods 18, and a plurality of universal wheels 20 are fixedly provided at the bottom of the bottom plate 19, a displacement sensor 21 is fixedly provided on the surface of one of the U-shaped fixed frames 2, and a tension sensor 22 is embedded in the inner wall of one of the arc blocks 8, A controller 23 is fixedly provided on one side of the workbench 1, and a plurality of universal wheels 20 are provided at the bottom of the base plate 19. The workbench 1 is first pushed to drive the plurality of universal wheels 20 at the bottom to rotate, so that the device can be flexibly moved to a position close to the power cabinet and convenient for operation. Then, the overall height of the entire test device is adjusted with the help of the two third electric telescopic rods 18 at the bottom of the workbench 1. The operator controls the third electric telescopic rod 18 to work through the controller 23 to extend or contract it, thereby driving the base plate 19 and the entire device to move in the vertical direction, ensuring that the device is at a suitable working height, and facilitating the subsequent installation and testing operations of the thread ends.

[0032] Working principle of this utility model:

[0033] The utility model is a wire end connection strength test device for a power supply cabinet. When the device is in use, due to the multiple universal wheels 20 equipped at the bottom of the bottom plate 19, the workbench 1 is first pushed to drive the multiple universal wheels 20 at the bottom to rotate, so that the device can be flexibly moved to a position close to the power supply cabinet and convenient for operation. Then, the two third electric telescopic rods 18 at the bottom of the workbench 1 are used to adjust the overall height of the entire test device. The operator controls the third electric telescopic rod 18 to work through the controller 23 to extend or contract it, so as to drive the bottom plate 19 and the entire device to move in the vertical direction, so as to ensure that the device is at a suitable working height, and facilitate the subsequent installation and testing of the wire ends.

[0034] Then, the position of the arc block 8 is adjusted according to the thickness of the power cabinet wire to be tested, and the first electric telescopic rod 3 is controlled by the controller 23 to start and shrink, driving the fixed plate 4 connected thereto to move along the guide rod 5 toward the inside of the U-shaped fixed frame 2 to leave enough space for placing the wire end. Then, one end of the wire end of the power cabinet is placed between the two arc blocks 8 in one of the U-shaped fixed frames 2, and the first electric telescopic rod 3 is started again to extend it, pushing the fixed plate 4 to move outward along the guide rod 5 until the two arc blocks 8 tightly clamp the wire end to complete the fixation of one end of the wire end, and the rubber layer 9 on one side of the arc block 8 can both increase the friction with the wire end to ensure the clamping effect and avoid damaging the surface of the wire end. Then, according to the same operating steps as above, the other end of the wire end is also fixed at the adjustment mechanism corresponding to the other U-shaped fixed frame 2 to ensure that the wire end is straightened and firmly fixed between the two U-shaped fixed frames 2, so as to prepare for the subsequent tensile test.

[0035] Then, the controller 23 controls the stepper motor 15 to work, and the stepper motor 15 starts to rotate at a constant speed, driving the threaded shaft 16 fixedly connected to its output end to rotate synchronously. Since the threaded shaft 16 and the movable block 14 are threadedly connected, and the movable block 14 is restricted in the movable groove 17 on the surface of the workbench 1 and can only slide linearly, the rotation of the threaded shaft 16 drives the movable block 14 to move horizontally and linearly along the movable groove 17;

[0036] The second electric telescopic rod 13 connected to the bottom of the movable block 14 will move with the movable block 14, thereby driving the U-shaped fixed frame 2 connected thereto to be displaced, while the other U-shaped fixed frame 2 is relatively fixed by the second electric telescopic rod 13 fixed to the workbench 1 at the bottom, so that a relative lateral displacement is generated between the two U-shaped fixed frames 2, exerting a pulling force on the thread ends, simulating the external force that the thread ends may be subjected to in actual use scenarios, and the pulling force will gradually increase with the continuous movement of the movable block 14;

[0037] At the same time, the displacement sensor 21 embedded in the surface of one of the U-shaped fixing frames 2 will monitor the moving distance of the U-shaped fixing frame 2 in real time, that is, the elongation data of the thread head under the action of tension, and transmit these data to the controller 23 in real time. At the same time, the tension sensor 22 embedded in the inner wall of one of the arc blocks 8 can accurately measure the tension applied to the thread head at this moment, and also transmit the tension data to the controller 23. After receiving the data from the displacement sensor 21 and the tension sensor 22, the controller 23 will control the number of steps of its stepping motor 15, and comprehensively evaluate whether the connection strength of the thread head meets the standard through the displacement and tension data, so as to accurately perform strength test.

[0038] When it is necessary to detect thread ends of different sizes, first loosen the bolt 12 on the limit block 11. At this time, the limit block 11 can slide in the limit slot 10, and then drive the limit block 11 to move to the other end of the limit slot 10, thereby releasing the fixed restriction on the T-shaped mounting block 7. The T-shaped mounting block 7 can move freely in the mounting slot, and pull the arc block 8 outward to drive the T-shaped mounting block 7 to be taken out of the mounting slot, and then replace the arc blocks 8 of different sizes. The above steps can be reversed for installation, so that the distance between the two relative arc blocks 8 can be effectively adjusted, so that the different sizes of thread ends can be better adapted, ensuring that the arc block 8 can firmly and appropriately clamp the thread ends when the thread end connection strength test is performed, thereby improving the versatility and adaptability of the device for detecting thread ends of different specifications.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A wire connection strength testing device for a power supply cabinet, comprising a workbench (1), characterized in that: Two U-shaped fixed frames (2) are arranged on the top of the workbench (1), a first electric telescopic rod (3) is fixedly arranged inside the two U-shaped fixed frames (2), and an adjustment mechanism is arranged on one side of the first electric telescopic rod (3); The adjustment mechanism comprises a fixing plate (4) fixedly arranged at the output end of the first electric telescopic rod (3); two guide rods (5) are fixedly arranged on one side of the U-shaped fixing frame (2); one end of each of the two guide rods (5) penetrates the fixing plate (4) and extends to the outside of the fixing plate (4); a stabilizing plate (6) is fixedly arranged on the inner wall of the U-shaped fixing frame (2); mounting grooves are provided on the surfaces of the fixing plate (4) and the stabilizing plate (6); a T-shaped mounting block (7) is slidably arranged inside the mounting groove; an arc block (8) is fixedly arranged on one side of the T-shaped mounting block (7); and a rubber layer (9) is fixedly arranged on one side of the arc block (8).

2. The wire end connection strength testing device for a power supply cabinet according to claim 1, characterized in that: The surfaces of the fixing plate (4) and the stabilizing plate (6) are provided with limit grooves (10), the interior of the limit grooves (10) is slidably provided with limit blocks (11), the surfaces of the limit blocks (11), the fixing plate (4) and the stabilizing plate (6) are provided with a plurality of threaded holes, and the interiors of the plurality of threaded holes are all threadedly connected with bolts (12).

3. The wire end connection strength testing device for a power supply cabinet according to claim 1, characterized in that: A testing mechanism is provided at the bottom of the U-shaped fixed frame (2), the testing mechanism comprising a second electric telescopic rod (13) fixedly arranged at the bottom of the U-shaped fixed frame (2), wherein the bottom of one of the second electric telescopic rods (13) is fixedly connected to the surface of the workbench (1).

4. The wire connection strength testing device for a power supply cabinet according to claim 3, characterized in that: A movable block (14) is fixedly arranged at the bottom of the other second electric telescopic rod (13), a support plate is fixedly arranged at one side of the workbench (1), and a stepping motor (15) is fixedly arranged at the top of the support plate.

5. The wire connection strength testing device for a power supply cabinet according to claim 4, characterized in that: A threaded shaft (16) is fixedly provided at the output end of the stepping motor (15), one end of the threaded shaft (16) passes through the movable block (14) and is threadably connected to the inside of the movable block (14), a movable groove (17) is provided on the surface of the workbench (1), and the movable block (14) is slidably connected to the movable groove (17).

6. The wire end connection strength testing device for a power supply cabinet according to claim 1, characterized in that: Two third electric telescopic rods (18) are fixedly arranged at the bottom of the workbench (1), a bottom plate (19) is fixedly arranged at the bottom of the two third electric telescopic rods (18), and a plurality of universal wheels (20) are fixedly arranged at the bottom of the bottom plate (19).

7. The wire end connection strength testing device for a power supply cabinet according to claim 1, characterized in that: A displacement sensor (21) is fixedly provided on the surface of one of the U-shaped fixing frames (2), a tension sensor (22) is embedded in the inner wall of one of the arc-shaped blocks (8), and a controller (23) is fixedly provided on one side of the workbench (1).

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