Cable bending test device and method

Abstract

The invention provides a cable bending test device and method, and relates to the technical field of cable detection, the cable bending test device comprises a machine body, a bending winding mechanism, a sliding mechanism, two groups of guide mechanisms and two groups of fixing mechanisms; the bending winding mechanism comprises a vertically-arranged mounting seat, winding wheels are arranged on the upper side and the lower side of the mounting seat, each winding wheel comprises a supporting shaft, a plurality of wheel bodies provided with wheel grooves are arranged on the supporting shafts, and abutting pieces used for abutting against the wheel bodies are arranged at the ends, away from the mounting seat, of the supporting shafts. The two groups of fixing mechanisms are respectively arranged at two ends of the test bed and can fix the end part of the cable, each fixing mechanism comprises an inner seat and an outer seat, the inner seat is fixed on the test bed, a plurality of first clamping grooves for clamping the cable are formed in the inner seat, the outer seat is detachably arranged on the inner seat, and a plurality of second clamping grooves for clamping the cable are formed in the outer seat. According to the invention, the cable in a certain length range can be directly tested without cutting, and the tested sample can be put into use.

Description

Technical Field

[0001] This invention relates to the field of cable testing technology, and more specifically, to a cable bending test apparatus and method. Background Technology

[0002] Cables are crucial carriers of power transmission and information transmission. During research and development and production, it is necessary to sample cables for bending tests. Cable bending tests simulate bending stress in actual use scenarios to evaluate the mechanical and electrical properties of cables under repeated bending. The main focus is on checking the degree of surface damage and cracking of the sample after bending it a specified number of times at a specified bending angle.

[0003] Reference Figure 1 As shown, the existing cable bending test device includes a body, a bending and winding mechanism, a sliding mechanism, and a guiding mechanism. When conducting a bending test on a cable, the cable needs to be cut into a sample of a specified length. The middle section of the cable is wound on the bending and winding mechanism, and the two ends are placed on the guiding mechanism. The two ends of the cable are fixed to the two ends of the body. The sliding mechanism drives the bending and winding mechanism to move so that different parts of the cable are continuously bent on the bending and winding mechanism. After the test, the sample is removed and the surface damage is checked.

[0004] For cables such as power cords for indoor household appliances, power cords for small factory equipment, car charging cables, and power cords for industrial robots, their length is usually around 3m-5m. However, the samples used for bending tests are usually around 1.5m-2m long. When performing bending tests on cables for the above applicable working conditions, the cables are cut. After the test, both the sample and the remaining cable cannot be used, resulting in a waste of materials. Summary of the Invention

[0005] The purpose of this invention is to provide a cable bending test device and method, which can directly test cables within a certain length range without the need for pre-test cutting. Qualified samples after the test can be put into use, avoiding material waste caused by the testing process.

[0006] This invention is achieved through the following technical solution: a cable bending test device, comprising: a body; a test platform is provided on the top of the body; A bending and winding mechanism includes a vertically arranged mounting base with winding wheels on both the upper and lower sides; a sliding mechanism located at the top of the machine body and capable of driving the mounting base to slide along the length of the machine body; two sets of guiding mechanisms, each located at one end of the top of the test bench, each guide mechanism including a guide frame and multiple guide wheels; and two sets of fixing mechanisms, each located at one end of the test bench and capable of fixing the ends of the cable; wherein, the winding wheel includes a support shaft with multiple wheel bodies having grooves, and a clamping element for abutting the wheel bodies is provided at the end of the support shaft away from the mounting base; the fixing mechanism includes an inner seat and an outer seat, the inner seat being fixedly mounted on the test bench and having multiple first slots for cable insertion, and the outer seat being detachably mounted on the inner seat and having multiple second slots for clamping the cable.

[0007] Furthermore, multiple elastic steel sheets are distributed vertically on both sides of the inner seat and on the second slot of the outer seat. Multiple abutting grooves are provided on the groove wall of the outer seat and on the second slot. When the outer seat abuts against the inner seat, the abutting grooves abut against the elastic steel sheets and press the elastic steel sheets against the cable.

[0008] Furthermore, the first and second card slots each have multiple arc-shaped protrusions distributed vertically on their opposite sides.

[0009] Furthermore, multiple sets of reversing components are provided on the test bench and at the lower part of each set of fixing mechanisms. On the horizontal projection plane, the reversing components are all located between two adjacent first slots. The reversing component includes a reversing shaft and a rubber block disposed at the end of the reversing shaft.

[0010] Furthermore, the clamping element includes a clamping nut and a clamping washer. The end of the support shaft away from the mounting seat has an external thread. The clamping washer is sleeved on the support shaft and abuts against the wheel located on the outer side. The clamping nut is threadedly connected to the support shaft and abuts against the clamping washer.

[0011] Furthermore, a limiting sleeve is provided on the support shaft and between two adjacent wheel bodies.

[0012] Furthermore, a sliding screw is provided on the side of the winding wheel located on the lower side facing the mounting base. A strip groove is provided on the mounting base in the horizontal direction. The sliding screw is slidably disposed in the strip groove. A positioning nut is threadedly connected to the sliding screw.

[0013] Furthermore, the sliding mechanism includes a drive motor, a lead screw, a drive block, and two guide rails. Mounting blocks are provided at both ends of the test bench. The lead screw is rotatably mounted between the two mounting blocks. The drive motor is fixedly mounted on one of the mounting blocks, and the output shaft of the drive motor is fixedly connected to the lead screw. The drive block is fixedly mounted on the bottom of the mounting base and threadedly connected to the lead screw. The two guide rails are fixedly mounted on the test bench along the length of the test bench and are located on both sides of the drive block.

[0014] The present invention also provides a test method using the above-mentioned cable bending test device, comprising the following steps: S1. Insert one end of the cable into the first slot at the end of the left inner seat, and then lay the cable on the guide wheel of the left guide frame, the corresponding wheel body on the upper winding wheel of the mounting seat, the corresponding wheel body on the lower winding wheel of the mounting seat, and the guide wheel of the right guide frame in sequence. Then insert the cable into the first slot at the corresponding position on the right inner seat. S2. Fold the cable over and insert it into the first slot at the adjacent position. Then, place it on the guide wheel of the right guide frame, the wheel body at the corresponding position of the winding wheel on the lower side of the mounting seat, the wheel body at the corresponding position of the winding wheel on the upper side of the mounting seat, and the guide wheel of the left guide frame in sequence. Finally, insert the cable into the first slot at the corresponding position on the left inner seat. S3. Fold the cable over again and insert it into the first slot at the adjacent position to continue installing the cable until the remaining length of the cable cannot be used for a complete winding operation. S4. Insert the multiple second slots of the outer seat into the cable, so that the outer seat is pressed against the inner seat and the position of the outer seat is fixed, thereby fixing the position of the cable. S5. Start the sliding mechanism to drive the mounting base to slide back and forth along the length of the machine body, so that the bending part of the cable changes continuously, thereby realizing the bending test process of different parts of the entire cable. S6. After the test, close the sliding mechanism, remove the outer seat from the inner seat and take off the cable. Straighten the cable and observe the damage on the outer surface of the cable. If there is no damage on the entire cable surface, the sample can continue to be used. If damage occurs on any segment, the sample should be scrapped.

[0015] Furthermore, in S2 and S3, after folding the cable, the folded portion is hung on the reversing shaft.

[0016] The technical solution of the present invention has at least the following advantages and beneficial effects: 1. This invention improves efficiency by having the winding wheel have multiple wheel bodies, and the inner and outer seats have multiple slots. Multiple guide wheels are set on the guide mechanism so that the cable can be bent into multiple segments and each segment can be fixed separately. Multiple cable segments can be tested at once, eliminating the need to cut the cable into small segments for testing. This preserves the integrity of the cable and allows qualified samples to be put into use after the test.

[0017] 2. This invention arranges elastic steel sheets on both sides of each first slot in the inner seat and opens a clamping groove in the second slot of the outer seat. When installing the cable, the elastic steel sheets can initially fix the cable. After installation, the clamping groove drives the elastic steel sheets to further clamp onto the cable, further improving the clamping effect. Moreover, the opposite sides of the first and second slots are provided with arc-shaped protrusions. The part of the cable that is clamped is simultaneously subjected to clamping action from four positions. Compared with the clamping action from a single position of the clamping bolt, the stability can be greatly improved. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the existing technology; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the bending winding mechanism and the sliding mechanism of the present invention; Figure 4 This is a schematic diagram of the winding wheel of the present invention; Figure 5 This is a schematic diagram of the structure of the cable after winding is completed according to the present invention; Figure 6 for Figure 5 Enlarged view of part A; Figure 7 This is a first structural schematic diagram of the fixing mechanism of the present invention, used to show the internal structure of the inner seat; Figure 8 This is a second structural schematic diagram of the fixing mechanism of the present invention, used to show the internal structure of the outer seat; Figure 9 This is a schematic diagram of the structure of the lower winding wheel of the present invention on the mounting base; Reference numerals: 1-Machine body, 11-Test bench, 2-Bending and winding mechanism, 21-Mounting seat, 211-Strip groove, 22-Winding wheel, 221-Support shaft, 222-Wheel body, 223-Clamping component, 2231-Clamping nut, 2232-Clamping washer, 224-Limiting sleeve, 225-Sliding screw, 226-Positioning nut, 3-Sliding mechanism, 31-Drive motor, 32-Screw screw, 33-Drive block, 34-Guide rail, 35-Mounting block, 4-Guiding mechanism, 41-Guiding frame, 42-Guiding wheel, 5-Fixing mechanism, 51-Inner seat, 511-First slot, 512-Elastic steel sheet, 52-Outer seat, 521-Second slot, 522-Clamping groove, 53-Arc-shaped protrusion, 54-Fasting bolt, 6-Reversing component, 61-Reversing shaft, 62-Rubber block. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0021] Example The following is for reference Figures 2-9As shown in the figure, and further explained with reference to specific embodiments, this embodiment provides a cable bending test device, including a body 1, a bending and winding mechanism 2, a sliding mechanism 3, two sets of guiding mechanisms 4, and two sets of fixing mechanisms 5; a test platform 11 is provided on the top of the body 1; the bending and winding mechanism 2 includes a vertically arranged mounting base 21, and winding wheels 22 are provided on both the upper and lower sides of the mounting base 21; the sliding mechanism 3 is located on the top of the body 1 and can drive the mounting base 21 to slide along the length direction of the body 1; the two guiding mechanisms 4 are respectively located at the top two ends of the test platform 11, and the guiding mechanism 4 includes a guide frame 41 and multiple guide wheels 42; the two sets of fixing mechanisms 5 are respectively located at the two ends of the test platform 11 and can fix the ends of the cable. The winding wheel 22 includes a support shaft 221, on which a plurality of wheel bodies 222 with grooves are provided. At the end of the support shaft 221 away from the mounting base 21, a clamping member 223 for clamping the wheel bodies 222 is provided. The fixing mechanism 5 includes an inner seat 51 and an outer seat 52. The inner seat 51 is fixedly mounted on the test bench 11 and has a plurality of first slots 511 for inserting cables. The outer seat 52 is detachably mounted on the inner seat 51 and has a plurality of second slots 521 for clamping cables. When testing cables within a range of 3m-5m, the cable can be folded into multiple segments, and each segment can be placed on a wheel 222 at a corresponding position. By securing the end of each segment between the first slot 511 and the second slot 521 at the corresponding position, the entire cable can be divided into multiple segments for simultaneous testing. The testing processes of the multiple cable segments do not interfere with each other, which improves testing efficiency and eliminates the need for cable cutting, preserving the integrity of the cable. This allows qualified samples to be put into use after the test.

[0022] Reference Figure 3 , Figure 4 As shown, a limiting sleeve 224 is provided on the support shaft 221 and between two adjacent wheel bodies 222 to ensure a specified distance between the two adjacent wheel bodies 222, thus preventing wear caused by friction between adjacent cable segments due to excessive proximity during the test. The clamping member 223 includes a clamping nut 2231 and a clamping washer 2232. The end of the support shaft 221 away from the mounting base 21 has an external thread. The clamping washer 2232 is sleeved on the support shaft 221 and abuts against the outer wheel body 222. The clamping nut 2231 is threaded onto the support shaft 221 and abuts against the clamping washer 2232. When installing the wheel body 222, the wheel body 222 and the limiting sleeve 224 are alternately inserted onto the support shaft 221. The number of wheel bodies 222 installed is selected according to the length of the cable to meet the number of folds of the cable. After installation, the clamping washer 2232 is put onto the support shaft 221 and the clamping nut 2231 is tightened to fix the position of the wheel body 222 on the support shaft 221.

[0023] Reference Figure 3 As shown, the sliding mechanism 3 includes a drive motor 31, a lead screw 32, a drive block 33, and two guide rails 34. Mounting blocks 35 are provided at both ends of the test bench 11. The lead screw 32 is rotatably mounted between the two mounting blocks 35. The drive motor 31 is fixedly mounted on one of the mounting blocks 35, and its output shaft is fixedly connected to the lead screw 32. The drive block 33 is fixedly mounted on the bottom of the mounting base 21 and threadedly connected to the lead screw 32. The two guide rails 34 are fixedly mounted on the test bench 11 along its length and are located on both sides of the drive block 33. By driving the lead screw 32 to rotate via the drive motor 31, the drive block 33 can cause the mounting base 21 to slide along the length of the test bench 11, thereby changing the position of the winding wheel 22. Since the cable is wound between the upper and lower winding wheels 22, the bending position of the cable changes when the position of the winding wheel 22 changes, thus enabling bending at different positions along the entire cable.

[0024] Reference Figure 2 , Figure 5 As shown, multiple sets of reversing components 6 are provided on the test bench 11, located below each set of fixing mechanisms 5. On the horizontal projection plane, the reversing components 6 are all located between two adjacent first slots 511. (Refer to...) Figure 6 As shown, the commutator 6 includes a commutator shaft 61 and a rubber block 62 disposed at the end of the commutator shaft 61. After each section of cable is bent, the bent portion is hung on the commutator shaft 61. After hanging, the rubber block 62 can prevent the bent portion from moving off the commutator shaft 61, thereby providing initial fixation for the installed portion of the cable, thus facilitating the installation process of the entire cable.

[0025] The specific connection method between the outer seat 52 and the inner seat 51 is as follows: threaded holes are provided on both sides of the inner seat 51, and countersunk holes are provided on the outer seat 52. Fastening bolts 54 are inserted into the countersunk holes. When installing the cable, the outer seat 52 is removed from the inner seat 51 to facilitate the cable installation process. After the cable is installed, the outer seat 52 is pressed onto the inner seat 51, and the fastening bolts 54 are inserted into the threaded holes and tightened to fix the position of the outer seat 52. After fixing, the outer seat 52 can press against the cable to achieve the function of fixing the cable.

[0026] Reference Figure 7 , Figure 8As shown, multiple elastic steel plates 512 are vertically distributed on both sides of the inner seat 51 and located in the first slot 511, which play a preliminary positioning role for the ends of the installed cable segments. Multiple clamping grooves 522 are provided on the outer seat 52 and located in the groove wall of the second slot 521. When the outer seat 52 is clamped against the inner seat 51, the clamping grooves 522 abut against the elastic steel plates 512 and clamp the elastic steel plates 512 against the cable, thereby achieving stable fixation of the ends of the installed cable segments. This ensures that the position of each segment end of the cable is fixed during the test, thereby improving the accuracy of the test results.

[0027] The first slot 511 and the second slot 521 each have multiple arc-shaped protrusions 53 distributed vertically on their opposite sides. When the end of the cable segment is installed between the first slot 511 and the second slot 521, the arc-shaped protrusions 53 in the first slot 511 and the second slot 521 are pressed against the cable. At the same time, since the clamping groove 522 can press the elastic steel sheet 512 against the cable, the part of the cable that is clamped is simultaneously subjected to clamping action from four positions. Compared with the clamping action from only one position of the clamping bolt, the stability can be greatly improved.

[0028] Reference Figure 9 As shown, a sliding screw 225 is provided on the side of the lower winding wheel 22 facing the mounting base 21. A strip groove 211 is formed on the mounting base 21 in the horizontal direction. The sliding screw 225 is slidably disposed in the strip groove 211, and a positioning nut 226 is threadedly connected to the sliding screw 225. By adjusting the position of the sliding screw 225 along the length of the strip groove 211, and after adjustment, by tightening the positioning nut 226 to press it against the mounting base 21, the position of the lower winding wheel 22 can be adjusted, thereby changing the bending angle when the cable is bent.

[0029] This embodiment also provides a test method using the above-mentioned cable bending test device, including the following steps: S1. Insert one end of the cable into the first slot 511 at the end of the left inner seat 51, and then lay the cable sequentially on the guide wheel 42 of the left guide frame 41, the wheel body 222 at the corresponding position on the upper winding wheel 22 of the mounting seat 21, the wheel body 222 at the corresponding position on the lower winding wheel 22 of the mounting seat 21, and the guide wheel 42 of the right guide frame 41. Then insert the cable into the first slot 511 at the corresponding position on the right inner seat 51. S2. Fold the cable and insert it into the first slot 511 at the adjacent position, and then place it on the guide wheel 42 of the right guide frame 41, the wheel body 222 at the corresponding position of the winding wheel 22 on the lower side of the mounting base 21, the wheel body 222 at the corresponding position of the winding wheel 22 on the upper side of the mounting base 21, and the guide wheel 42 of the left guide frame 41. Then insert the cable into the first slot 511 at the corresponding position on the left inner seat 51. S3. Fold the cable over again and insert it into the first slot 511 in the adjacent position to continue installing the cable until the remaining length of the cable cannot be used for a complete winding operation. S4. The multiple second slots 521 of the outer seat 52 are inserted into the cable, so that the outer seat 52 is pressed against the inner seat 51 and the position of the outer seat 52 is fixed, thereby fixing the position of the cable. S5. Start the sliding mechanism 3 to drive the mounting base 21 to slide back and forth along the length of the body 1, so that the bending part of the cable changes continuously, thereby realizing the bending test process of different parts of the entire cable. S6. After the test, close the sliding mechanism 3, remove the outer seat 52 from the inner seat 51 and take off the cable. Straighten the cable and observe the damage on the outer surface of the cable. If there is no damage on the entire surface of the cable, the sample can continue to be used. If damage occurs on any segment, the sample should be scrapped.

[0030] It should be noted that in S2 and S3, after each fold of the cable, the folded part is hung on the reversing shaft 61 to improve the stability of the folded part and facilitate the installation process of the cable.

[0031] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cable bend test apparatus characterized by, The utility model relates to a cable bending and winding test device, which comprises: a machine body (1), the top of the machine body (1) is provided with a test bench (11); a bending and winding mechanism (2), the bending and winding mechanism (2) comprises a vertically arranged mounting seat (21), the upper and lower sides of the mounting seat (21) are both provided with winding wheels (22); a sliding mechanism (3), the sliding mechanism (3) is arranged on the top of the machine body (1) and can drive the mounting seat (21) to slide along the length direction of the machine body (1), two groups of guide mechanisms (4), the two guide mechanisms (4) are respectively arranged at the two ends of the top of the test bench (11), and the guide mechanism (4) comprises a guide frame (41) and a plurality of guide wheels (42); and two groups of fixing mechanisms (5), the two groups of fixing mechanisms (5) are respectively arranged at the two ends of the test bench (11) and can fix the end of the cable; wherein the winding wheel (22) comprises a support shaft (221), a plurality of wheel bodies (222) provided with wheel grooves are arranged on the support shaft (221), and a pressing piece (223) for pressing the wheel body (222) is arranged at the end of the support shaft (221) away from the mounting seat (21); the fixing mechanism (5) comprises an inner seat (51) and an outer seat (52), the inner seat (51) is fixedly arranged on the test bench (11), a plurality of first clamping grooves (511) for clamping the cable are arranged on the inner seat (51), and the outer seat (52) is detachably arranged on the inner seat (51), a plurality of second clamping grooves (521) for clamping the cable are arranged on the outer seat (52).

2. The cable bend test apparatus of claim 1, wherein, a plurality of elastic steel sheets (512) are arranged on the inner seat (51) and located on the two sides of the first clamping groove (511) in the vertical direction, a plurality of pressing grooves (522) are arranged on the groove wall of the second clamping groove (521) on the outer seat (52), when the outer seat (52) is pressed against the inner seat (51), the pressing groove (522) is in abutment with the elastic steel sheet (512) and makes the elastic steel sheet (512) press against the cable.

3. The cable bend test apparatus of claim 1 or 2, wherein, a plurality of arc-shaped protrusions (53) are arranged on the side of the first clamping groove (511) and the second clamping groove (521) facing each other in the vertical direction.

4. The cable bend test apparatus of claim 1, wherein, a plurality of reversing pieces (6) are arranged on the test bench (11) and located at the lower part of each fixing mechanism (5), and the reversing piece (6) is located between the adjacent two first clamping grooves (511) in the horizontal projection plane; the reversing piece (6) comprises a reversing shaft (61) and a rubber block (62) arranged at the end of the reversing shaft (61).

5. The cable bend test apparatus of claim 1, wherein, the pressing piece (223) comprises a pressing nut (2231) and a pressing gasket (2232), the support shaft (221) is provided with an external thread at the end away from the mounting seat (21), the pressing gasket (2232) is sleeved on the support shaft (221) and is in abutment with the wheel body (222) located on the outer side, and the pressing nut (2231) is threadedly connected on the support shaft (221) and is in abutment with the pressing gasket (2232).

6. The cable bend test apparatus of claim 5, wherein, a limiting sleeve (224) is arranged on the support shaft (221) and located between the adjacent two wheel bodies (222).

7. The cable bend test apparatus of claim 1, wherein, The wire winding wheel (22) located on the lower side is provided with a sliding screw rod (225) on the side of the mounting base (21), a strip-shaped slot (211) is formed on the mounting base (21) in the horizontal direction, the sliding screw rod (225) is slidingly arranged in the strip-shaped slot (211), and the positioning nut (226) is threadedly connected to the sliding screw rod (225).

8. The cable bend test apparatus of claim 1, wherein, The sliding mechanism (3) comprises a driving motor (31), a lead screw (32), a driving block (33) and two guide rails (34). The test table (11) is provided with mounting blocks (35) at both ends. The lead screw (32) is rotatably arranged between the two mounting blocks (35). The driving motor (31) is fixedly arranged on one of the mounting blocks (35) and the output shaft of the driving motor (31) is fixedly connected with the lead screw (32). The driving block (33) is fixedly arranged on the bottom of the mounting base (21) and is threadedly connected with the lead screw (32). The two guide rails (34) are fixedly arranged on the test table (11) along the length direction of the test table (11) and are respectively located on the two sides of the driving block (33).

9. A test method using the cable bending test apparatus according to any one of claims 4 to 8, characterized by, The method comprises the following steps: S1, one end of the cable is clamped into the first clamping groove (511) on the left inner seat (51), and then the cable is sequentially arranged on the guide wheels (42) of the left guide frame (41), the wheel bodies (222) on the corresponding positions of the upper winding wheel (22) of the mounting base (21), the wheel bodies (222) on the corresponding positions of the lower winding wheel (22) of the mounting base (21), the guide wheels (42) of the right guide frame (41), and then the cable is clamped into the first clamping groove (511) on the corresponding position of the right inner seat (51); S2, the cable is folded and clamped into the first clamping groove (511) at the adjacent position, and is sequentially arranged on the guide wheels (42) of the right guide frame (41), the wheel bodies (222) on the corresponding positions of the lower winding wheel (22) of the mounting base (21), the wheel bodies (222) on the corresponding positions of the upper winding wheel (22) of the mounting base (21), the guide wheels (42) of the left guide frame (41), and then the cable is clamped into the first clamping groove (511) on the corresponding position of the left inner seat (51); S3, the cable is folded again and clamped into the first clamping groove (511) at the adjacent position to continue the installation of the cable, until the remaining length of the cable cannot be wound once; S4, the plurality of second clamping grooves (521) of the outer seat (52) are clamped on the cable, so that the outer seat (52) abuts against the inner seat (51) and fixes the position of the outer seat (52), thereby fixing the position of the cable; S5, the sliding mechanism (3) is started to drive the mounting base (21) to reciprocate along the length direction of the machine body (1), so that the bending parts of the cable change continuously, thereby realizing the bending test process of different parts of the whole cable. S6. After the test, close the sliding mechanism (3), remove the outer seat (52) from the inner seat (51) and take off the cable. Straighten the cable and observe the damage on the outer surface of the cable. If there is no damage on the entire cable surface, the sample can continue to be used. If damage occurs on any folded segment, the sample should be scrapped.

10. The test method of claim 9, wherein, In S2 and S3, after the cable is folded, the folded part is hung on the reversing shaft (61).

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