A power cord performance detection apparatus and method

Abstract

The present application relates to power line detection technical field, especially to a kind of power line performance detection equipment and method, including base plate, the base plate upper end is equipped with support frame;It further includes end clamping mechanism, the end clamping mechanism is arranged on support frame and is used to clamp the two ends of power line, the end clamping mechanism includes the connecting plate installed in the front end of support frame, two left and right symmetrical distribution rotating rods are rotatably connected on connecting plate.This end clamping mechanism can simultaneously clamp the interface and plug of power line, and drive piece one can drive two end clamping frames reciprocating rotation, realize the connection strength of the interface and plug of power line and cable is simultaneously detected, effectively reduce the operation steps of the two ends of power line respectively detected, improve the detection efficiency of the two ends of power line detected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power cord detection, and particularly relates to a power cord performance detection device and method. BACKGROUND

[0002] A power cord is a wire that transmits electric current. Usually, the way of transmitting electric current is point-to-point transmission. The power cord can be divided into AC power cord and DC power cord according to use. Usually, the AC power cord is a wire material with high voltage alternating current. Such wire material needs to be uniformly standardized and obtain safety certification before formal production due to high voltage.

[0003] The power cord is mainly composed of a plug, a cable and an interface. In order to avoid potential safety hazards of the power cord in long-term use, such as damage of insulating material or fracture of conductor, the tensile property of the power cord cable, the durability of the power cord and the connection strength between parts of the power cord need to be detected. In the prior art, the end of the power cord is first clamped and limited by a clamping device, and then the other end of the power cord is connected to a counterweight so that the power cord is in a straight state. Then, a driving device is started to drive the clamping device to reciprocate, and the clamping device drives the end of the power cord to reciprocate, thereby realizing detection of the durability of the power cord. However, the prior detection device can only detect one end of the power cord in one detection process, and then the power cord is taken down for end change detection, which not only increases the operation steps of detection, but also reduces the detection efficiency. Moreover, the prior detection device can only evaluate the durability of the power cord by the bending resistance of the connection between the plug or the interface and the cable, which leads to low accuracy of the durability detection result of the power cord. The prior detection device can only detect the performance of the power cord by one detection method, which is single and has low applicability.

[0004] Therefore, it is urgent to provide a power cord performance detection device which can improve detection efficiency and increase detection methods. SUMMARY

[0005] Therefore, it is urgent to provide a power cord performance detection device which can improve detection efficiency and increase detection methods.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme: a power cord performance detection device, comprising: a base plate, a support frame is installed on the upper end of the base plate.

[0007] The power line performance detection equipment further comprises an end clamping mechanism arranged on the support frame and used for clamping two ends of the power line, the end clamping mechanism comprises a connecting plate arranged at the front end of the support frame, two left-right symmetrical rotating rods are rotatably connected through the connecting plate, clamping portions and pulleys are respectively connected to front and rear ends of the rotating rods, and a belt is connected between the two pulleys.

[0008] The power line performance detection equipment further comprises a lifting mechanism connected to the lower side of the connecting plate.

[0009] The power line performance detection equipment further comprises a wire clamping mechanism connected to the lower side of the lifting mechanism, the wire clamping mechanism comprises a sliding rail plate connected to the lower side of the lifting mechanism and provided with a sliding hole in the middle portion, two sliding blocks are slidably connected in the sliding hole of the sliding rail plate, a rotating portion is connected to the front end of the sliding block, and a wire clamping portion is connected to the front side of the rotating portion.

[0010] The rotating portion comprises a connecting rod rotatably connected to the front end of the sliding block, a limiting sleeve is sleeved on the outer periphery of the connecting rod and fixedly connected to the front end of the sliding block, two limiting openings are arranged at the front end of the limiting sleeve and arranged at right angles, a sliding ring is slidably sleeved on the connecting rod, and a limiting block is arranged at the rear end of the sliding ring.

[0011] In the power line durability detection, the two rotating clamping portions first drive the two ends of the power line to rotate, and then the lifting mechanism stretches the cable through the wire clamping mechanism; the detection equipment can detect the connection strength of the connection between the power line plug and the cable, the connection between the interface and the cable, and the tensile property of the cable itself.

[0012] Preferably, the end clamping mechanism further comprises a driving member one used for driving the pulley to rotate.

[0013] Preferably, the lifting mechanism comprises a positioning plate arranged at the lower end of the connecting plate, a sliding groove is arranged at the lower end of the positioning plate, a lifting plate is slidably connected in the sliding groove, the lower end of the lifting plate is fixedly connected to the sliding rail plate, and the lifting plate and the rear end of the positioning plate are jointly provided with a driving member two.

[0014] Preferably, the wire clamping mechanism further comprises two driving members three installed at the rear end of the sliding rail plate through mounting seats, and the driving members three are fixedly connected to the corresponding sliding blocks.

[0015] Preferably, the clamping portion comprises an end clamping frame arranged at the front end of the rotating rod and having a U-shaped structure, a partition plate is arranged at the middle portion of the inner end of the middle segment of the end clamping frame, the partition plate and the two side segments of the end clamping frame are jointly rotatably connected to a threaded rod, two screw threads having opposite screw directions are arranged on the threaded rod, and clamping members are symmetrically and threadedly connected to the threaded rod.

[0016] Preferably, the rotating part further comprises a plurality of moving grooves circumferentially arranged on the annular surface of the connecting rod, and a plurality of moving blocks are slidably connected in the moving grooves, and the moving blocks are fixedly connected with the inner annular surface of the sliding ring.

[0017] Preferably, the wire clamping part comprises a wire clamping frame in U-shaped structure mounted at the front end of the connecting rod, and two wire clamping members are symmetrically arranged in the wire clamping frame, one wire clamping member is fixedly mounted on one side wall segment of the wire clamping frame, and the other wire clamping member is rotatably connected with a locking screw.

[0018] Preferably, the wire clamping part further comprises a locking screw threadedly connected with the corresponding side wall segment of the wire clamping frame, the locking screw is provided with a guide rod slidably penetrating through the corresponding side wall segment of the wire clamping frame, the guide rod is fixedly connected with the corresponding wire clamping member, and a roller is rotatably connected with the wire clamping frame through a connecting frame.

[0019] Preferably, the sliding ring is symmetrically provided with two stop blocks fixedly connected with the front end of the limiting sleeve, and the two stop blocks are located at the opposite sides of the two limiting openings, respectively.

[0020] In addition, the power cord performance detection method provided by the application comprises the following steps:

[0021] S1: first, the plugs and interfaces at the two ends of the power cord are mounted on the two clamping parts, respectively, and then the cable of the power cord is connected to the wire clamping mechanism;

[0022] S2: when the bending resistance of the power cord is detected, the two clamping parts are repeatedly rotated to drive the plugs and interfaces to rotate repeatedly, the two wire clamping mechanisms are used to pull the cable, and after a period of time, the connection of the plugs, interfaces and cable is observed;

[0023] S3: after the detection in step S2 is completed, if the cable at the plugs and interfaces is not damaged, the tensile resistance of the cable is detected, at this time, the two wire clamping mechanisms horizontally clamp the middle position of the cable, the wire clamping mechanism is started, and the tensile resistance of the cable is detected by the wire clamping mechanism;

[0024] S4: after the tensile resistance of the cable in step S3 is completed, if the cable is not damaged, the clamping of one wire clamping part on the cable is released, the clamping states of the two wire clamping parts are adjusted through the two rotating parts, then the two wire clamping parts are moved to below the two clamping parts, respectively, and then the wire clamping mechanism is pushed and squeezed through the lifting mechanism, the durability of one end of the power cord is comprehensively evaluated by observing the connection of the cable and the plugs or interfaces on the basis of the bending resistance detection in step S2, and the clamping of the wire clamping part on the cable is released, the other wire clamping part is clamped on the cable, and the durability of the other end of the power cord is comprehensively evaluated by repeating the connection of the cable and the plugs or interfaces.

[0025] S5: After completing the various tests on the power cord, remove the power cord from the testing equipment. The testing is now complete.

[0026] In summary, the present invention has the following beneficial effects:

[0027] 1. The end clamping mechanism used in this invention can simultaneously clamp and limit the interface and plug of the power cord, and the driving component can drive the two end clamps to rotate back and forth, so as to simultaneously detect the bending strength of the plug and interface of the power cord and the cable, effectively reducing the operation steps of separately detecting both ends of the power cord and improving the detection efficiency of the two ends of the power cord.

[0028] 2. The end clamping mechanism and lifting mechanism used in this invention can perform tensile testing on the connection points of the power cord plug and interface with the cable, and, in conjunction with the power cord's bending resistance testing, increase the conditions for evaluating the durability of the power cord and improve the accuracy of the power cord durability testing.

[0029] 3. The end clamp mechanism, lifting mechanism and wire clamp mechanism used in this invention cooperate with each other. The durability test of the power cord, the connection strength test of the power cord plug and interface with the cable, and the tensile performance test of the power cord can all be carried out on one testing device. This effectively solves the problem of the single testing method of existing testing equipment and improves the diversity and applicability of the testing equipment. Attached Figure Description

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] Figure 1 A three-dimensional structural schematic diagram of the present invention from a first perspective is shown.

[0032] Figure 2 A three-dimensional structural schematic diagram of the present invention from a second perspective is shown.

[0033] Figure 3 A front view of the present invention is shown.

[0034] Figure 4 It shows Figure 3 Sectional view of AA.

[0035] Figure 5 It shows Figure 3 A cross-sectional view of BB.

[0036] Figure 6 A schematic diagram of the end clamp mechanism of the present invention is shown.

[0037] Figure 7 A schematic diagram of the wire clamp mechanism of the present invention is shown.

[0038] Figure 8 The working state diagram of the anti-bending detection and the cable strength detection of the power cord of the application is shown.

[0039] Figure 9 The working state diagram of the anti-pulling performance detection of the plug, the interface and the cable of the power cord of the application is shown.

[0040] Among them, the above drawings include the following reference signs: 1, base plate; 2, support frame; 3, end clamping mechanism; 30, connecting plate; 31, rotating rod; 32, clamping part; 320, end clamping frame; 321, partition plate; 322, threaded rod; 323, clamping piece; 33, belt pulley; 34, driving piece one; 4, lifting mechanism; 40, positioning plate; 41, sliding groove; 42, lifting plate; 43, driving piece two; 5, wire clamping mechanism; 50, sliding rail plate; 51, sliding block; 52, rotating part; 520, connecting rod; 521, limiting sleeve; 522, limiting opening; 523, sliding ring; 524, limiting block; 525, moving groove; 526, moving block; 527, stop block; 53, wire clamping part; 530, wire clamping frame; 531, wire clamping piece; 532, locking screw; 533, guide rod; 534, roller; 54, driving piece three. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned purposes, features and advantages of the application more obvious and easy to understand, the specific embodiments of the application will be described in detail below with reference to the drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the application. However, the application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the application, so the application is not limited by the specific embodiments disclosed below.

[0042] Referring to Figures 1-3 A power cord performance detection device includes a base plate 1, and a support frame 2 is installed on the upper end of the base plate 1.

[0043] During specific work, the base plate 1 is fixedly installed at the working position by bolts.

[0044] Referring to Figure 1 and Figure 2 The power cord performance detection device further includes an end clamping mechanism 3, which is arranged on the support frame 2 and is used for clamping both ends of the power cord. The end clamping mechanism 3 includes a connecting plate 30 installed on the front end of the support frame 2, two left and right symmetrical rotating rods 31 rotatably connected through the connecting plate 30, clamping parts 32 and belt pulleys 33 respectively connected to the front and rear ends of the rotating rods 31, and a belt connected between the two belt pulleys 33.

[0045] Referring to Figure 1 ,Figure 2 , Figure 4 , Figure 5 and Figure 6 The clamping part 32 includes an end clamp 320 with a U-shaped structure installed at the front end of the rotating rod 31. A partition plate 321 is installed in the middle of the inner end of the middle section of the end clamp 320. The partition plate 321 and the two side sections of the end clamp 320 are rotatably connected to a threaded rod 322. The threaded rod 322 is provided with two threaded teeth with opposite helical directions. A clamping member 323 is symmetrically threaded on the threaded rod 322.

[0046] In practice, the plug of the power cord to be tested is first placed between two clamping members 323 within the same end clamp 320. The structure of the clamping member 323 matches the plug or interface of the power cord to be clamped. Then, the corresponding threaded rod 322 is rotated, which causes the two clamping members 323 to move closer together and clamp the plug of the power cord. Similarly, the interface of the power cord is placed between two clamping members 323 within another end clamp 320. Then, the corresponding threaded rod 322 is rotated, which causes the two clamping members 323 to move closer together and clamp the interface of the power cord.

[0047] See Figure 1 , Figure 4 and Figure 5 The power cord performance testing equipment also includes a lifting mechanism 4, which is connected to the lower side of the connecting plate 30.

[0048] See Figure 1 , Figure 2 , Figure 4 and Figure 5 The power cord performance testing equipment also includes a wire clamp mechanism 5, which is connected to the lower side of the lifting mechanism 4. The wire clamp mechanism 5 includes a slide rail plate 50 connected to the lower side of the lifting mechanism 4 and having a sliding hole in the middle. Two sliding blocks 51 are slidably connected in the sliding hole on the slide rail plate 50. A rotating part 52 is connected to the front end of the sliding block 51, and a wire clamp part 53 is connected to the front side of the rotating part 52.

[0049] See Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 7 The wire clamp part 53 includes a wire clamp frame 530 with a U-shaped structure installed at the front end of the rotating part 52. Two wire clamping parts 531 are symmetrically arranged inside the wire clamp frame 530. One wire clamping part 531 is fixedly installed on a side wall section of the wire clamp frame 530, and the other wire clamping part 531 is rotatably connected to a locking screw 532.

[0050] See Figure 1 , Figure 2 ,Figure 4 、 Figure 5 and Figure 7 The wire clamp part 53 further comprises a locking screw 532 threadedly connected to the corresponding side wall segment of the wire clamp 530, and a guide rod 533 is arranged on one side of the locking screw 532 and penetrates through the corresponding side wall segment of the wire clamp 530, the guide rod 533 is fixedly connected with the corresponding wire clamping part 531, and the wire clamp 530 is rotationally connected with a roller 534 through a connecting frame.

[0051] In specific work, in the initial state, the two wire clamps 530 are located below and transversely through the two end clamping frames 320, then the cables of the power supply line are placed on the upper ends of the lower wire clamping parts 531 in the two wire clamps 530, the structure of the wire clamping part 531 matches the cable of the power supply line to be clamped, then the two locking screws 532 are rotated in sequence, the locking screw 532 drives the lower wire clamping part 531 to move upward and drives the cable to be close to the upper wire clamping part 531, the two wire clamping parts 531 of the same wire clamp 530 clamp and position the cable, the roller 534 guides the cable to avoid the phenomenon of angle appearing at the contact position of the cable with the detection equipment after the cable is connected and positioned, to avoid damage of the cable beyond detection, and to ensure the accuracy of subsequent detection.

[0052] Referring to Figure 1 、 Figure 4 and Figure 5 The lifting mechanism 4 comprises a positioning plate 40 mounted at the lower end of the connecting plate 30, a sliding groove 41 is formed at the lower end of the positioning plate 40, a lifting plate 42 is slidably connected in the sliding groove 41, the lower end of the lifting plate 42 is fixedly connected with the slide rail plate 50, and the lifting plate 42 and the rear end of the positioning plate 40 are jointly provided with a driving part two 43.

[0053] In specific work, after the cable of the power supply line is positioned, the driving part two 43 is started, the driving part two 43 is a displacement driving part, which can be a hydraulic push rod or an electric push rod, the driving part two 43 drives the lifting plate 42 to move downward, the lifting plate 42 drives the slide rail plate 50 to move downward, the slide rail plate 50 drives the rotating part 52 and the wire clamp part 53 to move through the two sliding blocks 51, and the wire clamp part 53 drives the cable to move, so that the cable between the wire clamp part 53 and the clamping part 32 is in a straightened state (as shown in Figure 8 ).

[0054] Referring to Figure 1 、 Figure 2 、 Figure 4 and Figure 5 The end clamping mechanism 3 further comprises a driving part one 34 for driving the belt pulley 33 to rotate, an output shaft of the driving part one 34 is fixedly connected with any one of the belt pulleys 33, and the driving part one 34 is mounted on the connecting plate 30 through a mounting frame.

[0055] In the durability detection of the power cord, the two rotating clamping parts 32 rotate the two ends of the power cord, and the cable clamping mechanism 5 clamps the cable. The specific steps are as follows: start the driving part one 34 to make the driving part one 34 reciprocate. The driving part one 34 is a rotating driving part, which can be a servo motor or a stepping motor. The driving part one 34 drives the corresponding belt pulley 33 to rotate. The rotating belt pulley 33 drives the other belt pulley 33 through the belt. The two reciprocating belt pulleys 33 drive the two clamping parts 32 to reciprocate through the two rotating rods 31. The two clamping parts 32 drive the plugs and interfaces of the power cord to reciprocate. The function of detecting the bending resistance of the connection between the plugs and the cable and the connection between the interfaces and the cable is realized through the torsion detection. After a period of time, stop the work of the driving part one 34, and then observe the connection position of the plugs and the cable and the connection position of the interfaces and the cable. If there is no rupture or damage at the connection position, the detection is qualified and the next detection is performed. If there is rupture or damage at the connection position, the power cord detection is unqualified. The bending resistance detection of the plugs and the cable and the bending resistance detection of the interfaces and the cable can be realized simultaneously in one detection operation, which effectively improves the efficiency of the power cord detection and reduces the operation steps of the power cord detection.

[0056] Referring to Figure 1 , Figure 5 and Figure 7 , the cable clamping mechanism 5 further comprises two driving parts three 54 installed on the rear end of the slide rail plate 50 through the mounting seat. The driving part three 54 is fixedly connected with the corresponding sliding block 51.

[0057] In the tensile resistance detection of the power cord cable, the cable clamping mechanism 5 stretches the cable. The specific steps are as follows: start the two driving parts three 54. The driving part three 54 is a displacement driving part, which can be a hydraulic push rod or an electric push rod. The two driving parts three 54 drive the two sliding blocks 51 away from each other. The two sliding blocks 51 drive the two rotating parts 52 and the two clamping parts 53 away from each other. The two clamping parts 53 clamp the two points of the power cord cable and stretch the cable. The stretching force of the power cord cable is gradually increased by increasing the driving force of the driving part three 54. When the stretching force reaches the maximum detection value, the condition of the cable is observed. If the cable is not ruptured or damaged, the detection is qualified and the next detection is performed. If the cable is ruptured or damaged, the power cord detection is unqualified. Then stop the work of the driving part three 54.

[0058] Referring to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 7The rotating part 52 comprises a connecting rod 520 rotatably connected to the front end of the sliding block 51, a thread clamp 530 fixedly connected to the front end of the connecting rod 520, a limiting sleeve 521 fixedly connected to the front end of the sliding block 51 and sleeved on the outer periphery of the connecting rod 520, two limiting openings 522 in right angles and arranged on the front end of the limiting sleeve 521, a sliding ring 523 sleeved on the connecting rod 520, and a limiting block 524 mounted on the rear end of the sliding ring 523.

[0059] Referring to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 7 , the rotating part 52 further comprises a plurality of moving grooves 525 circumferentially arranged on the annular surface of the connecting rod 520, a plurality of moving blocks 526 slidably connected in the moving grooves 525, and the plurality of moving blocks 526 fixedly connected to the inner annular surface of the sliding ring 523, two stop blocks 527 fixedly connected to the front end of the limiting sleeve 521 and symmetrically arranged at the rear of the sliding ring 523, and the two stop blocks 527 respectively located at the opposite sides of the two limiting openings 522.

[0060] In the specific work, on the basis of the torsion detection, the anti-pulling detection is performed on the connection between the power cord plug, the interface and the cable, the lifting mechanism 4 pulls the cable vertically downward through the wire clamp mechanism 5, and the specific steps are as follows: firstly, one wire clamp part 53 is released from clamping the power cord cable, and the specific operation is that the corresponding locking screw 532 is rotated, the locking screw 532 drives the corresponding wire clamp 531 to descend, so that the clamping of the cable is released, then the wire clamping state of the two wire clamp parts 53 is adjusted through the two rotating parts 52 in turn, and the specific operation is that the sliding ring 523 is moved, the sliding ring 523 drives the limiting block 524 to separate from the corresponding limiting opening 522 through the plurality of moving blocks 526 in the plurality of moving grooves 525, then the sliding ring 523 is rotated, the sliding ring 523 drives the connecting rod 520 to rotate through the cooperation of the plurality of moving blocks 526 and the plurality of moving grooves 525, and then the wire clamp part 53 is rotated, until the rotating limiting block 524 is attached to the corresponding stop block 527, at this time, the wire clamp part 53 is rotated by 90°, so that the opening of the end clamp frame 320 is vertically penetrated, then the sliding ring 523 is pushed, the sliding ring 523 drives the limiting block 524 to be inserted and matched with the corresponding limiting opening 522, so that the wire clamp part 53 after adjustment is repositioned, at this time, one wire clamp part 53 clamps the cable, and then the driving part two 43 is started, the driving part two 43 drives the lifting plate 42 to move downward, the lifting plate 42 drives the sliding rail plate 50 to move downward, the sliding rail plate 50 drives the rotating part 52 and the wire clamp part 53 to move through the sliding block 51, and the wire clamp part 53 pulls the cable downward to make it straight (as shown in Figure 9As shown in the figure, on the basis of the torsion detection, different sizes of pulling force (i.e. stretching detection) are applied to the cable by changing the size of the force applied by the driving member two 43, the durability is evaluated by observing the cracking degree or the breaking condition of the connection, then the clamping of the cable by the wire clamp part 53 is released, the driving member two 43 drives the lifting plate 42 to reset, another wire clamp part 53 clamps the cable, and then the steps of the anti-pulling detection of the connection between the power cord interface or plug and the cable are repeated.

[0061] In addition, the connection strength of the connection between the power cord plug and the cable and the connection between the interface and the cable can also be detected by the detection device, and the specific detection method is as follows: the power cord plug and the interface are clamped by the two clamping parts 32 respectively, the cable is clamped by the two wire clamp parts 53, and the driving member two 43 continuously applies pulling force to the cable until the connection between the power cord plug and the cable or the connection between the interface and the cable is broken, and the connection strength of the connection between the power cord plug and the cable and the connection between the interface and the cable is evaluated by the size of the measured pulling force value.

[0062] It should be noted that the pulling force value is obtained by monitoring the pulling force sensor, and the pulling force sensor is arranged on the wire clamping part 531. When the wire clamping part 531 clamps the cable and pulls the cable, the pulling force sensor can monitor the pulling force value of the cable in real time.

[0063] The durability detection of the power cord, the connection strength detection of the cable and the anti-pulling strength detection of the power cord and cable can be realized on one detection device, effectively solving the problem of single detection mode of the existing detection device, improving the diversity of the detection of the detection device, and further improving the applicability of the detection device.

[0064] In addition, the present application also provides a power cord performance detection method, which specifically comprises the following steps:

[0065] S1: First, the plugs and interfaces at both ends of the power cord are respectively installed on the two clamping parts 32, and then the cable of the power cord is connected to the wire clamp mechanism 5.

[0066] S2: During the anti-bending detection of the connection between the power cord plug and the cable and the connection between the interface and the cable, the two clamping parts 32 are repeatedly rotated to drive the plug and the interface to be repeatedly rotated, the two wire clamp mechanisms 5 pull the cable, and after a period of time, the conditions of the connections between the plug and the cable and the interface and the cable are observed.

[0067] S3: After the detection in step S2 is completed, if the cable at the plug and the interface has no problem, the detection of the cable strength is continued, at this time, the two wire clamp mechanisms 5 horizontally clamp the middle position of the cable, the wire clamp mechanism 5 is started, and the anti-pulling detection of the cable is performed.

[0068] S4: After the cable tensile strength detection in step S3 is completed, if the cable has no problem, one of the cable clamping parts 53 is released, the clamping state of the two cable clamping parts 53 is adjusted through the two rotating parts 52, then the two cable clamping parts 53 are moved to below the two clamping parts 32 respectively, and then the cable clamping mechanism 5 is pushed by the lifting mechanism 4, the durability of one end of the power cable is evaluated by observing the connection between the cable and the plug or the interface on the basis of the bending resistance detection in step S2, and the clamping of the cable by the working cable clamping part 53 is released, the clamping of the cable by the other cable clamping part 53 is performed, and the durability of the other end of the power cable is evaluated by repeating the observation of the connection between the cable and the plug or the interface.

[0069] S5: After the various detections of the power cable are completed, the power cable is removed from the detection device, and the detection is completed.

[0070] In the description of the embodiments of the present application, it should be noted that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "top", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise specified and limited, the term "a plurality of" means two or more.

[0071] In the description of the present application, it should also be noted that, unless otherwise specified and limited, the terms "set", "mount", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between the two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0072] The embodiments of the specific implementation are the preferred embodiments of the present application, and do not limit the protection scope of the present application, so that any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A power cord performance testing device, comprising a base plate, wherein a support frame is mounted on the upper end of the base plate, characterized in that: An end clamping mechanism is mounted on a support frame and used to clamp both ends of a power cord. The end clamping mechanism includes a connecting plate mounted on the front end of the support frame. Two symmetrical rotating rods are rotatably connected through the connecting plate. The front and rear ends of the rotating rods are respectively connected to a clamping part and a pulley. A belt is connected between the two pulleys. The lifting mechanism is connected to the lower side of the connecting plate; A wire clamp mechanism is connected to the lower side of the lifting mechanism. The wire clamp mechanism includes a slide rail plate connected to the lower side of the lifting mechanism. Two sliding blocks are slidably connected to the slide rail plate. A rotating part is connected to the front end of the sliding block, and a wire clamp part is connected to the front side of the rotating part. The rotating part includes a connecting rod rotatably connected to the front end of the sliding block. A limiting sleeve fixedly connected to the sliding block is sleeved on the outer periphery of the connecting rod. Two limiting openings distributed at right angles are opened at the front end of the limiting sleeve. A sliding ring is slidably sleeved on the connecting rod, and a limiting block is installed at the rear end of the sliding ring. In the power cord durability test, two rotating clamping parts first drive the two ends of the power cord to rotate, and then the lifting mechanism stretches the cable through the wire clamp mechanism; the testing equipment can test the connection strength of the connection between the power cord plug and the cable, the connection between the interface and the cable, and the tensile strength of the cable itself.

2. The power cord performance testing device according to claim 1, characterized in that: The end clamping mechanism also includes a drive component for driving the pulley to rotate.

3. The power cord performance testing device according to claim 1, characterized in that: The lifting mechanism includes a positioning plate installed at the lower end of the connecting plate. A sliding groove is provided at the lower end of the positioning plate, and a lifting plate is slidably connected in the sliding groove. The lower end of the lifting plate is fixedly connected to the slide rail plate. A driving component is installed at the rear end of the lifting plate and the positioning plate.

4. The power cord performance testing device according to claim 1, characterized in that: The clamp mechanism also includes two drive components three that are mounted on the rear end of the slide rail plate via mounting bases, and the drive components three are fixedly connected to the corresponding sliding blocks.

5. The power cord performance testing device according to claim 1, characterized in that: The clamping part includes an end clamp with a U-shaped structure installed at the front end of the rotating rod. A partition plate is installed in the middle of the inner end of the middle section of the end clamp. The partition plate and the two side sections of the end clamp are rotatably connected to a threaded rod. The threaded rod is provided with two threaded teeth with opposite helical directions. Clamping components are symmetrically threaded on the threaded rod.

6. The power cord performance testing device according to claim 1, characterized in that: The rotating part also includes multiple movable grooves circumferentially opened on the annular surface of the connecting rod, with movable blocks slidably connected in the movable grooves, and multiple movable blocks simultaneously fixedly connected to the inner annular surface of the sliding ring.

7. The power cord performance testing device according to claim 1, characterized in that: The wire clamp includes a U-shaped wire clamp frame installed at the front end of the connecting rod. Two wire clamping components are symmetrically arranged inside the wire clamp frame. One wire clamping component is fixedly installed on a side wall section of the wire clamp frame, and the other wire clamping component is rotatably connected to a locking screw.

8. The power cord performance testing device according to claim 7, characterized in that: The wire clamp also includes a locking screw threaded to the corresponding side wall section of the wire clamp frame. A guide rod is provided on one side of the locking screw, which slides through the corresponding side wall section of the wire clamp frame. The guide rod is fixedly connected to the corresponding wire clamping component. Rollers are rotatably connected to the wire clamp frame via a connecting frame.

9. The power cord performance testing device according to claim 1, characterized in that: Two stop blocks are symmetrically arranged behind the sliding ring and are fixedly connected to the front end of the limiting sleeve. The two stop blocks are located on opposite sides of the two limiting openings.

10. A method for testing the performance of a power cord, characterized in that, The test is performed using the power cord performance testing equipment as described in claim 1, and includes the following steps: S1: First, install the plugs and interfaces at both ends of the power cord onto the two clamping parts respectively, and then connect the power cord cable to the clamping mechanism; S2: During the power cord bending resistance test, the two clamping parts rotate repeatedly, causing the plug and interface to rotate repeatedly. The two clamping mechanisms pull the cable. After a period of time, observe the connection between the plug and interface and the cable. S3: After the test in step S2 is completed, if there is no problem with the cable at the plug and interface, continue to test the tensile strength of the cable. At this time, the two clamping mechanisms horizontally clamp the middle position of the cable. Start the clamping mechanism and the clamping mechanism will test the tensile strength of the cable. S4: After the cable tensile performance test in step S3 is completed, if there are no problems with the cable, release one of the clamps from the cable and adjust the clamping state of the two clamps through the two rotating parts. Then, move the two clamps to the bottom of the two clamping parts respectively, and push the clamp mechanism through the lifting mechanism. Based on the bending performance test in step S2, comprehensively evaluate the durability of one end of the power cord by observing the connection between the cable and the plug or interface. Similarly, release the working clamp from the cable and clamp the cable with the other clamp. Repeat the process of comprehensively evaluating the durability of the other end of the power cord by observing the connection between the cable and the plug or interface. S5: After completing the various tests on the power cord, remove the power cord from the testing equipment. The testing is now complete.

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