Cathode metal plate bending fatigue testing device

Abstract

The application discloses a kind of cathode metal plate bending fatigue test device, it relates to cathode metal plate test technical field.The cathode metal plate bending fatigue test device includes fixed component and test component.Fixed component includes rack and two support frames.Rack is fixedly arranged, two support frames are symmetrically fixed on rack along transverse direction, and cathode metal plate is fixed between two support frames.Test component includes two cylinder fixed beams, two stroke cylinders and two nylon blocks.Two cylinder fixed beams are fixed on rack along longitudinal direction, and are arranged at the two sides of cathode metal plate, two stroke cylinders are respectively fixed on two cylinder fixed beams, and the output end of two stroke cylinders faces cathode metal plate, two nylon blocks are respectively fixed on the output end of two stroke cylinders.The output end of two stroke cylinders can alternately extend or retract, so that two nylon blocks carry out periodic ejection action to the two sides of cathode metal plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cathode metal plate testing, and particularly relates to a cathode metal plate bending fatigue testing device. BACKGROUND

[0002] As a core component of an electrolytic cell, a cathode metal plate is subjected to harsh service conditions, and is subjected to electrolyte pressure, temperature cycles and mechanical loads during loading and unloading for a long time, and is prone to fatigue bending in a metal stress concentration area, resulting in failure.

[0003] The conventional cathode metal plate fatigue condition is only estimated according to the actual use of the cathode plate in the past, and has not been tested, so that the user does not know how many times the cathode plate will produce metal fatigue after use, resulting in problems such as reduced production capacity and even production line shutdown due to cathode plate fatigue.

[0004] In view of the above problems, the present application provides a cathode metal plate bending fatigue testing device to solve the above problems. SUMMARY

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a cathode metal plate bending fatigue testing device, comprising a fixing assembly and a testing assembly. The fixing assembly comprises a rack and two support frames. The rack is fixedly arranged, and the two support frames are symmetrically fixed to the rack in the transverse direction, and the cathode metal plate is fixed between the two support frames. The testing assembly comprises two cylinder fixing beams, two stroke cylinders and two nylon blocks. The two cylinder fixing beams are fixed to the rack in the longitudinal direction, and are arranged on both sides of the cathode metal plate, the two stroke cylinders are fixed to the two cylinder fixing beams respectively, and the output ends of the two stroke cylinders face the cathode metal plate, and the two nylon blocks are fixed to the output ends of the two stroke cylinders respectively. The output ends of the two stroke cylinders can alternately extend or retract, so that the two nylon blocks periodically push out the two sides of the cathode metal plate.

[0006] Further, as a preferred, the cathode metal plate bending fatigue testing device further comprises a first controller; the first controller is fixed to the support frame and is electrically connected to the two stroke cylinders.

[0007] Further, as a preferred, the cathode metal plate comprises a cathode plate conductive beam and a cathode plate body, and the cathode plate conductive beam is fixed to one side of the cathode plate body. The two support frames are provided with clamping assemblies, and the clamping assemblies comprise two beam fixing grooves and clamping rollers; the two beam fixing grooves are fixed to the top of the two support frames in the transverse direction to clamp the cathode plate conductive beam; and the two clamping rollers are arranged at the bottom of the two support frames in the longitudinal direction to clamp the cathode plate body.

[0008] Further, preferably, the two support frames are configured as U-shaped structures. The inner walls of the bottoms of the two support frames are provided with positioning blocks, each of which comprises a guide through slot, and the two guide through slots face each other. Two guide rollers are arranged in each guide through slot, and the four guide rollers are arranged in two groups, and each group of guide rollers is sleeved with a clamping roller, and the two ends of the two clamping rollers abut against the opposite side walls of the two positioning blocks.

[0009] Further, preferably, the cathode metal plate bending fatigue test device further comprises two groups of adjusting assemblies arranged at the ends of the guide rollers away from the clamping rollers. The adjusting assembly comprises a cylinder mounting frame and a double-shaft cylinder, and the double-shaft cylinder is fixed to the cylinder mounting frame, and the two output shafts of the double-shaft cylinder are connected to the ends of the guide rollers through connecting columns.

[0010] Further, preferably, the inner walls of the two cross beams are fixedly provided with adjusting cylinders for adjusting the distance between the cross beam fixing grooves.

[0011] Further, preferably, the cathode metal plate bending fatigue test device further comprises a second controller fixed to the support frame and electrically connected to the double-shaft cylinders and the adjusting cylinders.

[0012] Further, preferably, the cathode metal plate bending fatigue test device further comprises intermittent transmission assemblies arranged between the positioning blocks and the clamping rollers, and the intermittent transmission assemblies are arranged in two groups in a transverse symmetry. The intermittent transmission assembly comprises a ratchet wheel, a support column, a pawl and a return spring, the ratchet wheel is connected to the end wall of the clamping roller, the support column is fixed to the positioning block, the support column is fixedly provided with a limiting block, a T-shaped clasp is connected to the side wall of the pawl, a T-shaped ring groove is arranged in the positioning block, the T-shaped clasp is rotatably arranged in the T-shaped ring groove, a stop block is fixed to the inner wall of the pawl, the pawl is intermittently engaged with the ratchet wheel, and the return spring is connected between the stop block and the limiting block.

[0013] Further, preferably, bearings are fixed to the outer circumferential walls on both sides of the guide rollers, bearing sleeves are fixed to the inner circumferential walls at both ends of the clamping rollers, and the clamping rollers are sleeved with the bearings through the bearing sleeves.

[0014] Further, preferably, rectangular sleeves are fixed to the outer circumferential walls at both ends of the guide rollers, the rectangular sleeves are slidably arranged in the guide through slots, electric telescopic rods are fixedly arranged on the inner walls of the clamping rollers, abrasive pads are fixed to the output ends of the electric telescopic rods, and the abrasive pads are intermittently in contact with the guide rollers.

[0015] Compared with the prior art, the cathode metal plate bending fatigue test device has the following advantages:

[0016] 1. By setting the test assembly, so that the cathode plate body produces plate bending after N times of reciprocating test, so as to judge that the cathode plate body reaches metal fatigue after N times of use, thereby confirming the service life of the cathode plate body, facilitating material selection during production, and determining the number of uses of the cathode plate body.

[0017] 2. By setting the rotatable clamping roller, when the cathode plate body is bent during the test process, the bottom side wall of the cathode plate body and the circumferential wall of the clamping roller are relatively rolled and rubbed, thereby greatly reducing the friction between the bottom side wall of the cathode plate body and the circumferential wall of the clamping roller, and further reducing the wear degree of the side wall of the cathode plate body, thereby ensuring the use performance of the cathode plate body.

[0018] 3. By using the intermittent transmission assembly, when the clamping roller completes one left-right reciprocating movement with the guide roller, the clamping roller will rotate by a fixed angle, so that each time the cathode plate body is clamped, the cathode plate body will contact different arc-shaped parts of the clamping roller, thereby avoiding excessive wear of the same position of the clamping roller, and keeping the relative rolling motion between the cathode plate body and the clamping roller, thereby reducing the wear degree of the bottom side wall of the cathode plate body and further ensuring the use performance of the cathode plate body. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0020] Figure 2 It is a schematic diagram of the position distribution of the positioning block of the present application;

[0021] Figure 3 It is a schematic diagram of the position distribution of the clamping roller and the guide roller of the present application;

[0022] Figure 4 It is a schematic diagram of the Figure 2 enlarged view of A in the present application;

[0023] Figure 5 It is a schematic diagram of the intermittent transmission assembly structure of the present application;

[0024] Figure 6 It is a schematic diagram of the Figure 5 enlarged view of B in the present application;

[0025] Figure 7 It is a schematic diagram of the guide roller and its connecting piece structure of the present application;

[0026] Figure 8 It is a schematic diagram of the internal structure of the clamping roller of the present application.

[0027] In the figure: 11, rack; 12, support frame; 13, fixed crossbeam; 21, crossbeam fixing groove; 22, clamping roller; 31, stroke cylinder; 32, nylon block; 1, cathode plate conductive crossbeam; 2, cathode plate body; 41, positioning block; 42, guide roller; 411, guide groove; 421, connecting column; 51, cylinder mounting frame; 52, double-shaft cylinder; 61, ratchet wheel; 62, support column; 63, pawl; 64, return spring; 621, limit block; 631, stop block; 71, bearing; 72, bearing sleeve; 422, rectangular sleeve; 221, electric telescopic rod; 222, sanding sheet. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the use of the terms "including," "comprising," "having" and variations thereof herein is meant to encompass the inclusion of the recited elements but not the exclusion of others not recited.

[0030] The orientation words appearing in the following description are the directions shown in the drawings, and are not limited to the specific structure of the present application. For example, in the description of the present application, the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientation or position relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element 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 present application.

[0031] In addition, the terms "first", "second", and the like in the specification and claims of the present application or the above drawings are used to distinguish different objects, and are not used to describe a particular order, and can explicitly or implicitly include one or more of the features.

[0032] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, the "connection" or "connecting" of mechanical structures can mean physical connection, for example, the physical connection can be fixed connection, for example, fixed connection by screws, bolts or other fixing members; the physical connection can also be detachable connection, for example, mutual clamping or clamping connection; the physical connection can also be integrally connected, for example, welding, bonding or integrally formed connection. 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.

[0033] With reference to Figures 1-8 The present application provides a technical solution:

[0034] A cathode metal plate bending fatigue test device, comprising a fixing assembly and a test assembly. The fixing assembly comprises a rack 11 and two support frames 12. The rack 11 is fixedly arranged; the two support frames 12 are fixedly arranged on the rack 11 in a transverse symmetry, and the cathode metal plate is fixed between the two support frames 12. The test assembly comprises two cylinder fixing cross beams 13, two stroke cylinders 31 and two nylon blocks 32. The two cylinder fixing cross beams 13 are fixedly arranged on the rack 11 in a longitudinal direction, and are arranged on both sides of the cathode metal plate; the two stroke cylinders 31 are respectively fixed on the two cylinder fixing cross beams 13, and the output ends of the two stroke cylinders 31 are directed towards the cathode metal plate; the two nylon blocks 32 are respectively fixed on the output ends of the two stroke cylinders 31.

[0035] The output ends of the two stroke cylinders 31 can alternately extend or retract, so that the two nylon blocks 32 periodically push out the two sides of the cathode metal plate, and the cathode metal plate can complete repeated bending test.

[0036] Among them, one side of the two nylon blocks 32 close to each other is configured as an arc surface, when the nylon block 32 pushes out the cathode plate body 2, the cathode plate body 2 bends, the nylon block 32 configured as an arc surface can always contact the center part of the cathode plate body 2 in the bending state, avoiding the rest of the nylon block 32 from causing extrusion damage to the cathode plate body 2.

[0037] As a preferred embodiment, the present application further comprises a first controller; the first controller is fixed on the support frame 12 and is electrically connected to the two stroke cylinders 31.

[0038] It should be explained that the first controller writes a control program on the controller according to actual needs, when the first controller is started, the first controller controls the output rod of the stroke cylinder 31 to push out or retract through the pre-written control program.

[0039] In the application, the cathode metal plate comprises a cathode plate conductive crossbeam 1 and a cathode plate plate body 2, and the cathode plate conductive crossbeam 1 is fixed at one side edge of the cathode plate plate body 2. The two support frames 12 are provided with clamping assemblies, and the clamping assemblies comprise two crossbeam fixing grooves 21 and clamping rollers 22. The two crossbeam fixing grooves 21 are fixed at the top of the two support frames 12 respectively in the transverse direction to clamp the cathode plate conductive crossbeam 1, and the two clamping rollers 22 are arranged at the bottom of the two support frames 12 in the longitudinal direction to clamp the cathode plate plate body 2.

[0040] Specific test process: first, insert the bottom of the cathode plate plate body 2 to be tested into the gap between the two clamping rollers 22, then clamp the two ends of the cathode plate conductive crossbeam 1 into the crossbeam fixing grooves 21 respectively, when the cathode plate plate body 2 and the cathode plate conductive crossbeam 1 are both fixed, press the start switch, at this time the first controller runs through the program written in advance, one of the stroke cylinders 31 drives the nylon block 32 at the output end to push out, one side of the cathode plate plate body 2 is pushed out, stays for 0.2 seconds, then the stroke cylinder 31 with the nylon block 32 at the output end is retracted, waits for 30 seconds, the other stroke cylinder 31 drives the nylon block 32 at the output end to push out, the other side of the cathode plate plate body 2 is pushed out, stays for 0.2 seconds and is retracted, at this time the first controller counts 1 time, and the cycle is repeated. When the counter counts to 100 times, the first controller stops the program, and the two stroke cylinders 31 are automatically reset. At this time, the cathode plate plate body 2 and the cathode plate conductive crossbeam 1 are taken out together, the flatness of the plate surface of the cathode plate plate body 2 and the sag of the cathode plate plate body 2 are measured, and then the above process is repeatedly cycled. If the plate surface of the cathode plate plate body 2 is bent after N times of reciprocating test, it is judged that the cathode plate plate body 2 reaches metal fatigue after N times of use, that is, the cathode plate plate body 2 cannot normally return to the original position after being pushed out, so as to confirm the service life of the cathode plate plate body 2, facilitate the selection of materials during production, and clearly define the number of times of use of the cathode plate plate body 2.

[0041] As a preferred embodiment, the two support frames 12 are both configured in a U-shaped structure. The inner walls of the bottoms of the two support frames 12 are both provided with positioning blocks 41, each of the positioning blocks 41 comprises a guide through slot 411, and the two guide through slots 411 are opposite to each other. Two guide rollers 42 are arranged in each of the guide through slots 411, and the four guide rollers 42 are opposite to each other in pairs to form two groups. One clamping roller 22 is sleeved on each of the guide rollers 42 in each group, and the two ends of the two clamping rollers 22 abut against the opposite side walls of the two positioning blocks 41 respectively.

[0042] Firstly, the two guide rollers 42 move along the guide grooves 411, and the two clamping rollers 22 move synchronously, so that when the two guide rollers 42 are subjected to forces in opposite directions at the same time, the two clamping rollers 22 move synchronously to approach or move away, and the two clamping rollers 22 can complete the opening and closing action to clamp the bottom of the cathode plate body 2.

[0043] It should be explained that for the cathode plate, if the cathode plate body 2 is clamped and limited by the clamping roller 22 in a fixed manner, high-frequency reciprocating relative sliding motion occurs between the bottom side wall of the cathode plate body 2 and the clamping roller 22 for clamping the cathode plate body 2, which causes serious wear of the bottom side wall of the cathode plate body 2 and affects the use performance of the cathode plate body 2.

[0044] Therefore, in the present application, the rotatable clamping roller 22 is provided, and when the cathode plate body 2 bends during the test, the bottom side wall of the cathode plate body 2 rolls relative to the peripheral wall of the clamping roller 22, so that the friction between the bottom side wall of the cathode plate body 2 and the peripheral wall of the clamping roller 22 is greatly reduced, thereby reducing the wear degree of the side wall of the cathode plate body 2 and ensuring the use performance of the cathode plate body 2.

[0045] As a preferred embodiment, the present application further includes two sets of adjusting assemblies, which are arranged at one end of the guide roller 42 away from the clamping roller 22; the adjusting assembly includes a cylinder mounting frame 51 and a double-shaft cylinder 52, the double-shaft cylinder 52 is fixed to the cylinder mounting frame 51, and the two output shafts of the double-shaft cylinder 52 are connected to the end of the guide roller 42 through a connecting column 421.

[0046] As a preferred embodiment, the inner walls of the two beam fixing grooves 21 are respectively fixedly installed with adjusting cylinders for adjusting the distance between the beam fixing grooves 21.

[0047] As a preferred embodiment, the present application further includes a second controller, which is fixed to the support frame 12 and is respectively electrically connected to the double-shaft cylinder 52 and the adjusting cylinder (not shown in the figure).

[0048] It should be explained that the double-shaft cylinder 52 is controlled by the second controller, and when the second controller controls the double-shaft cylinder 52 to start, the two output shafts of the double-shaft cylinder 52 synchronously extend or retract, so that the double-shaft cylinder 52 drives the two guide rollers 42 to synchronously approach or move away, and the two guide rollers 42 drive the respective clamping rollers 22 to synchronously move.

[0049] Specifically, when the bottom of the cathode plate body 2 needs to be clamped, the second controller controls the double-shaft air cylinder 52 to drive the two clamping rollers 22 to move away synchronously, and then the bottom of the cathode plate body 2 is placed in the gap between the two clamping rollers 22. Then the second controller controls the double-shaft air cylinder 52 to drive the two clamping rollers 22 to move close synchronously until the two clamping rollers 22 completely clamp the bottom of the cathode plate body 2, and then the second controller controls the double-shaft air cylinder 52 to be closed.

[0050] The adjusting air cylinder also has two output shafts, and is controlled by the second controller.

[0051] In addition, when the cathode plate body 2 is installed, the two ends of the cathode plate conductive cross beam 1 fixed at the top of the cathode plate body 2 are respectively clamped in the two cross beam fixing grooves 21. Then the second controller controls the two adjusting air cylinders to start synchronously and drive the respective slot distances to be centered and reduced. When the cathode plate conductive cross beam 1 is completely clamped, the second controller is closed. Therefore, the cathode plate conductive cross beam 1 can be centered and positioned, and the entire cathode plate body 2 can always be kept in a vertical state, ensuring that the pushing amount of the two nylon blocks 32 to the cathode plate body 2 is consistent, thereby improving the accuracy of the test results.

[0052] As a preferred embodiment, the application further comprises a gap between the positioning block 41 and the clamping roller 22, and each set of intermittent transmission assemblies is arranged in two symmetrical directions. The intermittent transmission assembly comprises a ratchet wheel 61, a support 62, a pawl 63, and a return spring 64. The ratchet wheel 61 is connected to the end wall of the clamping roller 22. The support 62 is fixed on the positioning block 41. The support 62 is fixed with a limiting block 621. The pawl 63 is connected with a T-shaped clasp ring (not shown in the figure) on the side wall. A T-shaped ring groove is formed in the positioning block 41, and the T-shaped clasp ring is rotatably arranged in the T-shaped ring groove. The pawl 63 is fixed with a stop block 631 on the inner wall. The pawl 63 is intermittently engaged with the ratchet wheel 61. The return spring 64 is connected between the stop block 631 and the limiting block 621.

[0053] First of all, it needs to be noted that, if the cathode plate body 2 bottom side wall and the same position of the clamping roller 22 continue to contact, the same position of the clamping roller 22 will be excessively worn, the reason is: macroscopically, the two are in rolling contact, but microscopically, there is inevitable sliding (slip) contact, the micro protrusions on the surface of the cathode plate body 2, hard particles in the environment will act as abrasive, under the high pressure of the cyclic contact stress, these hard particles will continuously scratch the contact area of the clamping roller 22 like sandpaper, causing the material of the clamping roller 22 to be micro-cut and peeled off, if the same position is long-term effect, the contact area of the clamping roller 22 gradually appears wear pits or grooves, which will completely change the geometry of the clamping roller 22, making the cathode plate body 2 change from "line contact" to "surface contact", eventually leading to the relative rolling motion between the clamping roller 22 and the cathode plate body 2 to relative sliding motion, resulting in increased friction loss, affecting the performance of the cathode plate body 2.

[0054] The intermittent transmission assembly is provided to ensure that the cathode plate body 2 and the clamping roller 22 always maintain relative rolling motion, thereby solving the above problems, which will be explained as follows:

[0055] For example, please refer to Figures 5-6 When the overall cathode plate is taken out for detection of flatness and sag, the second controller needs to control the double-shaft air cylinder 52 to drive the two guide rollers 42 to move away from each other, so that the cathode plate body 2 is separated from the clamping roller 22, and then the first controller controls the double-shaft air cylinder 52 to drive the two guide rollers 42 to move towards each other, so that the cathode plate body 2 is clamped on the clamping roller 22. Figure 5 For example, the intermittent transmission assembly on the left side of the middle, when the guide roller 42 moves to the left, it will drive the clamping roller 22 to move to the left synchronously, the ratchet wheel 61 connected to the clamping roller 22 will move to the left, the pawl 63 will automatically embed into the tooth groove of the ratchet wheel 61, when the limiting block 621 contacts the stop block 631, the pawl 63 is completely limited, the jaw surface of the pawl 63 pushes the working surface of the tooth groove of the ratchet wheel 61, so that the ratchet wheel 61 will rotate in the clockwise direction by a certain angle, and then the ratchet wheel 61 will drive the clamping roller 22 to rotate in the clockwise direction by the same angle, and then the guide roller 42 moves to the right, the pawl 63 will slide on the tooth back of the ratchet wheel 61 and lift up, and the ratchet wheel 61 will not rotate during the rightward movement. Therefore, when the clamping roller 22 completes one reciprocating movement left and right with the guide roller 42, the clamping roller 22 will rotate by a fixed angle, so that each time the cathode plate body 2 is clamped, the cathode plate body 2 will contact different arc-shaped parts of the clamping roller 22, thereby avoiding excessive wear of the same position of the clamping roller 22, preventing the cathode plate body 2 from changing from "line contact" to "surface contact", and making the cathode plate body 2 and the clamping roller 22 always maintain relative rolling motion, thereby reducing the degree of wear of the bottom side wall of the cathode plate body 2, and further ensuring the performance of the cathode plate body 2.

[0056] Wherein, after the pawl 63 is separated from the ratchet wheel 61, it will return to the initial position under the elastic force of the return spring 64.

[0057] As a preferred embodiment, bearings 71 are fixed on the outer circumferential walls of the guide rollers 42, and bearing sleeves 72 are fixed on the inner circumferential walls of the clamping rollers 22, and the clamping rollers 22 are sleeved on the guide rollers 42 through the bearing sleeves 72 and the bearings 71.

[0058] The bearing sleeves 72 provide accurate positioning, stable support and reliable protection for the bearings 71, and the bearings 71 enable the clamping rollers 22 to normally perform the rotating function.

[0059] It should be noted here that due to the bearings 71, the friction between the clamping rollers 22 and the guide rollers 42 is greatly reduced, so that when the ratchet 61 is stressed during the movement of the clamping rollers 22 along with the guide rollers 42, the clamping rollers 22 will continue to rotate under the action of inertia, eventually resulting in uncontrollable rotation angle of the clamping rollers 22 each time.

[0060] Therefore, as a preferred embodiment, rectangular sleeves 422 are fixed on the outer circumferential walls of the guide rollers 42, the rectangular sleeves 422 are slidingly arranged in the guide grooves 411, electric telescopic rods 221 are fixedly installed on the inner walls of the clamping rollers 22, and abrasive sheets 222 are fixed on the output ends of the electric telescopic rods 221, and the abrasive sheets 222 intermittently contact the guide rollers 42.

[0061] The electric telescopic rods 221 are controlled by a second controller, and specifically, when the clamping rollers 22 move, the second controller controls the electric telescopic rods 221 to extend, and the abrasive sheets 222 contact and press the guide rollers 42, so that the mutual friction between the clamping rollers 22 and the guide rollers 42 increases during the movement of the clamping rollers 22 along with the guide rollers 42, thereby preventing the ratchet 61 from continuing to rotate after being stressed, and making the rotation angle of the clamping rollers 22 each time a uniform value, and preventing the same position of the clamping rollers 22 from being excessively worn.

[0062] In addition, the rectangular sleeves 422 can ensure that the guide rollers 42 only move along the guide grooves 411, preventing the guide rollers 42 from rotating during movement.

[0063] Finally, it should be noted that since the top of the cathode plate body 2 is fixed on the cathode plate conductive beam 1, and the top of the cathode plate body 2 does not contact the beam fixing groove 21, the top of the cathode plate body 2 does not need to be clamped.

[0064] In specific implementation:

[0065] Firstly, the second controller controls the double-shaft cylinder 52 to drive the two clamping rollers 22 to move away synchronously, and controls the adjusting cylinder to expand the distance between the beam fixing grooves 21, then the two ends of the cathode plate conductive beam 1 are clamped into the two beam fixing grooves 21 respectively, and the bottom of the cathode plate body 2 is placed in the gap between the two clamping rollers 22, then the second controller controls the double-shaft cylinder 52 to drive the two clamping rollers 22 to move close and clamp the bottom of the cathode plate body 2, and controls the adjusting cylinder to reduce the distance between the beam fixing grooves 21.

[0066] When testing, the first controller is started, one of the two stroke cylinders 31 drives the nylon block 32 at the output end to push out, one side of the cathode plate body 2 is pushed out, and after 0.2 seconds, the stroke cylinder 31 with the nylon block 32 at the output end is retracted, after 30 seconds, the other stroke cylinder 31 drives the nylon block 32 at the output end to push out, the other side of the cathode plate body 2 is pushed out, and after 0.2 seconds, it is retracted, at this time, the first controller counts 1 time, and the above-mentioned cycle is repeated, when the first controller counts to 100 times, the first controller stops the program, and the two stroke cylinders 31 are automatically reset. At this time, the cathode plate body 2 and the cathode plate conductive beam 1 are taken down together, the flatness of the cathode plate body 2 and the sag of the cathode plate body 2 are measured, and then the above-mentioned process is repeatedly cycled, if the cathode plate body 2 is bent after N times of reciprocating test (N is a positive integer), it is judged that the cathode plate body 2 reaches metal fatigue after being used for N times, and the number of times of using the cathode plate body 2 is determined.

[0067] When the cathode plate body 2 and the cathode plate conductive beam 1 are taken down each time, the second controller controls the double-shaft cylinder 52 to drive the two clamping rollers 22 to move away synchronously, and controls the adjusting cylinder to expand the distance between the beam fixing grooves 21, and then the two cathode plate body 2 and the cathode plate conductive beam 1 are taken down, during which the second controller controls the electric telescopic rod 221 to extend. Conversely, when the cathode plate body 2 and the cathode plate conductive beam 1 are installed each time, the second controller controls the double-shaft cylinder 52 to drive the two clamping rollers 22 to move close synchronously, and controls the adjusting cylinder to reduce the distance between the beam fixing grooves 21, and then the two cathode plate body 2 and the cathode plate conductive beam 1 are clamped, during which the second controller controls the electric telescopic rod 221 to retract.

[0068] The above-mentioned is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A cathode metal plate bending fatigue testing device, characterized in that: include: The fixing assembly includes a frame (11) and two support frames (12); the frame (11) is fixedly installed; the two support frames (12) are symmetrically fixed to the frame (11) in the transverse direction, and a cathode metal plate is fixed between the two support frames (12); The test assembly includes two cylinder fixing beams (13), two stroke cylinders (31), and two nylon blocks (32); the two cylinder fixing beams (13) are fixed longitudinally on the frame (11) and arranged on both sides of the cathode metal plate; the two stroke cylinders (31) are respectively fixed on the two cylinder fixing beams (13), and the output ends of the two stroke cylinders (31) face the cathode metal plate; the two nylon blocks (32) are respectively fixed on the output ends of the two stroke cylinders (31); the output ends of the two stroke cylinders (31) can extend or retract alternately, so that the two nylon blocks (32) periodically push out on both sides of the cathode metal plate; It also includes a first controller; the first controller is fixed to the support frame (12); The cathode metal plate includes a cathode plate conductive beam (1) and a cathode plate body (2), and the cathode plate conductive beam (1) is fixed to one side of the cathode plate body (2); The two support frames (12) are provided with clamping assemblies, which include two crossbeam fixing grooves (21) and clamping rollers (22); the two clamping rollers (22) are arranged longitudinally at the bottom of the two support frames (12) to clamp the cathode plate body (2). The bottom inner walls of both support frames (12) are provided with positioning blocks (41). It also includes an intermittent transmission assembly disposed between the positioning block (41) and the clamping roller (22), two of which are symmetrically arranged in the transverse direction; The intermittent transmission assembly includes a ratchet (61), a support (62), a pawl (63), and a return spring (64). The ratchet (61) is keyed to the end peripheral wall of the clamping roller (22). The support (62) is fixed on the positioning block (41). A limit block (621) is fixed on the support (62). A T-shaped retaining ring is connected to the side wall of the pawl (63). A T-shaped ring groove is opened on the positioning block (41). The T-shaped retaining ring is rotatably disposed in the T-shaped ring groove. A stop block (631) is fixed on the inner wall of the pawl (63). The pawl (63) intermittently meshes with the ratchet (61). The return spring (64) is connected between the stop block (631) and the limit block (621).

2. The cathode metal plate bending fatigue testing device according to claim 1, characterized in that: The first controller is electrically connected to the two stroke cylinders (31).

3. The cathode metal plate bending fatigue testing device according to claim 1, characterized in that: The two beam fixing slots (21) are fixed to the top of the two support frames (12) in the transverse direction to engage the cathode plate conductive beam (1).

4. The cathode metal plate bending fatigue testing device according to claim 1, characterized in that: Both of the aforementioned support frames (12) are configured as U-shaped structures; Each of the positioning blocks (41) includes a guide groove (411), and two guide grooves (411) face each other. Two guide rollers (42) are inserted in each guide groove (411), and the four guide rollers (42) are arranged in pairs to form two groups. Each group of guide rollers (42) is fitted with a clamping roller (22), and the two end walls of the two clamping rollers (22) respectively abut against the opposite side walls of the two positioning blocks (41).

5. The cathode metal plate bending fatigue testing device according to claim 4, characterized in that: It also includes two sets of adjustment components, which are disposed at one end of the guide roller (42) facing away from the clamping roller (22); the adjustment components include a cylinder mounting bracket (51) and a dual-axis cylinder (52), the dual-axis cylinder (52) is fixed on the cylinder mounting bracket (51), and the two output shafts of the dual-axis cylinder (52) are connected to the end of the guide roller (42) through a connecting column (421).

6. The cathode metal plate bending fatigue testing device according to claim 5, characterized in that: Adjustment cylinders for adjusting the spacing of the two beam fixing grooves (21) are fixedly installed on the inner walls of the two beam fixing grooves (21).

7. The cathode metal plate bending fatigue testing device according to claim 6, characterized in that: It also includes a second controller, which is fixed to the support frame (12) and electrically connected to the dual-axis cylinder (52) and the regulating cylinder, respectively.

8. The cathode metal plate bending fatigue testing device according to claim 4, characterized in that: Bearings (71) are fixed on the outer peripheral walls on both sides of the guide roller (42), and bearing sleeves (72) are fixed on the inner peripheral walls at both ends of the clamping roller (22). The clamping roller (22) is connected to the guide roller (42) by the bearing sleeves (72) and the bearings (71).

9. The cathode metal plate bending fatigue testing device according to claim 8, characterized in that: A rectangular sleeve (422) is fixed on the outer peripheral wall at both ends of the guide roller (42). The rectangular sleeve (422) is slidably disposed in the guide groove (411). An electric telescopic rod (221) is fixedly installed on the inner wall of the clamping roller (22). A sanding disc (222) is fixed at the output end of the electric telescopic rod (221). The sanding disc (222) is in intermittent contact with the guide roller (42).

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