Cable strength detection device

Abstract

The invention relates to the technical field of cable processing, in particular to a cable strength detection device which comprises a cable strength positioning detection mechanism, a first cable limiting mechanism and a second cable limiting mechanism, on one hand, after a to-be-detected section is positioned, two additional fixing points can be added, and on the other hand, the to-be-detected section can be conveniently positioned; on the other hand, the two added additional fixed points can perform strength detection after being matched with the tension sensor, so that strength data of a plurality of point positions can be obtained in one-time detection, and the detection accuracy is improved. Therefore, the overall trend of the cable strength and the stress distribution of different positions under the influence of the pulling force are obtained.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable processing, in particular to a cable strength detection device. BACKGROUND

[0002] In the cable production process, the quality of the cable needs to be sampled and inspected, and the strength and elongation of the cable are included in the sampling and inspection items. For example, the strength of the cable needs to be detected by clamping the two ends of the cable to be tested by a clamping device, and then detecting the tension that can be borne by a tension sensor and other elements to determine the strength of the cable.

[0003] A cable tensile strength detection device is disclosed in Chinese Patent No. CN214309906U, which provides a solution suitable for detecting cables of various diameters. However, the device can only detect the strength of one detection point, and cannot obtain the strength data of the cable other than the detection point, thereby failing to obtain the overall trend of the cable strength and the stress distribution at different positions under tension. SUMMARY

[0004] The present application aims to provide a cable strength detection device to address the above problems.

[0005] The technical solution adopted by the present application is as follows: a cable strength detection device includes a base, and a support table is arranged on the lower surface of the base. A cable strength positioning detection mechanism, a first cable limiting mechanism, and a second cable limiting mechanism are arranged on the upper surface of the base.

[0006] The first cable limiting mechanism and the second cable limiting mechanism are arranged on both sides of the cable strength positioning detection mechanism, and the first cable limiting mechanism and the second cable limiting mechanism can move on the base. The first cable limiting mechanism and the second cable limiting mechanism are used to fix the limiting section of the cable.

[0007] The cable strength positioning detection mechanism is fixed to the base, and the cable strength positioning detection mechanism is used to fix the detection section of the cable.

[0008] The cable can pass through the cable strength positioning detection mechanism, the first cable limiting mechanism, and the second cable limiting mechanism.

[0009] Optionally, a first sliding groove and a second sliding groove are arranged on the upper surface of the base, and the first sliding groove and the second sliding groove are arranged on both sides of the cable strength positioning detection mechanism and along the direction in which the cable passes through the cable strength positioning detection mechanism.

[0010] Optionally, the first cable limiting mechanism includes a first press, a first push rod, a first limiting shell, and a first limiting part.

[0011] The first limiting shell is open at both ends, and the cable can pass through the first limiting shell, and a first limiting cavity is arranged in the first limiting shell;

[0012] The first limiting part is arranged in the first limiting cavity, and the first limiting part can clamp the cable;

[0013] The first pressing machine is arranged at the top of the first limiting shell, and the power output end of the first pressing machine is connected with one end of the first push rod;

[0014] The other end of the first push rod is connected with the first limiting part.

[0015] Optionally, the first limiting part comprises a first upper limiting clamp and a first lower limiting clamp, the first upper limiting clamp and the first lower limiting clamp are oppositely arranged, and the opposite side is provided with a groove matched with the outer peripheral size of the cable;

[0016] The first upper limiting clamp is detachably connected with the first push rod, and the first upper limiting clamp can move up and down in the first limiting cavity;

[0017] The first lower limiting clamp is arranged below the first upper limiting clamp and is detachably connected with the bottom of the first limiting cavity.

[0018] Optionally, the second cable limiting mechanism comprises a second pressing machine, a second push rod, a second limiting shell and a second limiting part;

[0019] The second limiting shell is open at both ends, and the cable can pass through the second limiting shell, and a second limiting cavity is arranged in the second limiting shell;

[0020] The second limiting part is arranged in the second limiting cavity, and the second limiting part can clamp the cable;

[0021] The second pressing machine is arranged at the top of the second limiting shell, and the power output end of the second pressing machine is connected with one end of the second push rod;

[0022] The other end of the second push rod is connected with the second limiting part.

[0023] Optionally, the second limiting part is the same in structure as the first limiting part.

[0024] Optionally, the first cable limiting mechanism further comprises a first positioning block and a second positioning block;

[0025] The first positioning block and the second positioning block are arranged on the two sides of the first limiting shell respectively, and are connected with the outer wall of the first limiting shell through a first connecting rod and a second connecting rod respectively;

[0026] The second cable limiting mechanism further comprises a third positioning block and a fourth positioning block;

[0027] The third positioning block and the fourth positioning block are respectively arranged on two sides of the second limiting shell and are connected with the outer wall of the second limiting shell through a third connecting rod and a fourth connecting rod.

[0028] Optionally, the base is further provided with a first positioning slot, a second positioning slot, a third positioning slot and a fourth positioning slot.

[0029] The first positioning slot, the second positioning slot, the third positioning slot and the fourth positioning slot are all provided with tooth-shaped bosses at the bottom.

[0030] The tooth-shaped bosses in the first positioning slot and the second positioning slot are opposite to each other.

[0031] The tooth-shaped bosses in the third positioning slot and the fourth positioning slot are opposite to each other.

[0032] The first positioning block, the second positioning block, the third positioning block and the fourth positioning block can be respectively placed into the first positioning slot, the second positioning slot, the third positioning slot and the fourth positioning slot.

[0033] Optionally, the cable strength positioning detection mechanism comprises a shell, a detection cavity and a third limiting part.

[0034] The shell is of an open structure at both ends, and the cable can pass through the shell.

[0035] The detection cavity is arranged in the shell.

[0036] The third limiting part is arranged in the detection cavity, and the third limiting part can clamp the cable passing through the shell.

[0037] Optionally, the third limiting part comprises a third upper limiting clamp, a third lower limiting clamp, a pull rod and a stretching machine.

[0038] The stretching machine is arranged on the lower surface of the base and below the shell, and the stretching machine can drive the pull rod to move up and down.

[0039] The pull rod passes through the stretching machine, and one end of the pull rod is connected with the third upper limiting clamp.

[0040] The third upper limiting clamp is arranged above the third lower limiting clamp and is oppositely arranged with the third lower limiting clamp, and the opposite surface is provided with a groove matched with the outer peripheral size of the cable, and the third upper limiting clamp is in contact with the inner wall of the detection cavity.

[0041] The third lower limiting clamp is arranged on the base and between adjacent pull rods.

[0042] The beneficial effects of the present application at least include one of the following;

[0043] 1. By setting a cable strength detection device comprising a cable strength positioning detection mechanism, a first cable limiting mechanism and a second cable limiting mechanism, on the one hand, after positioning the to-be-detected section, two additional fixed points can be added, which can reduce the shaking of the cable during detection and improve the accuracy of detection, on the other hand, the two additional fixed points can also be used for strength detection after being matched with a tension sensor, so that the strength data of multiple points can be obtained in one detection, thereby obtaining the overall trend of the cable strength and the stress distribution of different positions under the influence of tension.

[0044] 2. The problem that the prior art can only detect the strength of one detection point during detection and cannot obtain cable strength data other than the detection point, thereby unable to obtain the overall trend of the cable strength and the stress distribution of different positions under the influence of tension. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 It is a structural schematic diagram of a cable strength detection device;

[0046] Figure 2 It is a structural schematic diagram of a cable strength detection device from another perspective;

[0047] Figure 3 It is a structural schematic diagram of a positioning groove and a positioning block;

[0048] Figure 4 It is a structural schematic diagram of a cable limiting mechanism;

[0049] Figure 5 It is a structural schematic diagram of a cable strength positioning detection mechanism.

[0050] In the drawings:

[0051] 1 is a base, 2 is a support table, 3 is a cable strength positioning detection mechanism, 4 is a cable, 5 is a first cable limiting mechanism, 6 is a second cable limiting mechanism, 7 is a first limiting shell, 8 is a second limiting shell, 9 is a first pressing machine, 10 is a second pressing machine, 11 is a first sliding groove, 12 is a second sliding groove, 13 is a first opening, 14 is a second opening, 15 is a first positioning block, 16 is a second positioning block, 17 is a first connecting rod, 18 is a second connecting rod, 19 is a first positioning groove, 20 is a second positioning groove, 21 is a third positioning block, 22 is a fourth positioning block, 23 is a third connecting rod, 24 is a fourth connecting rod, 25 is a third positioning groove, 26 is a fourth positioning groove, 27 is a first push rod, 28 is a first lower limiting clamp, 29 is a first upper limiting clamp, 30 is a first limiting cavity, 31 is a protruding part, 32 is a detection cavity, 33 is a pull rod, 34 is a third upper limiting clamp, 35 is a third lower limiting clamp, and 36 is a stretching machine. DETAILED DESCRIPTION

[0052] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Generally, the components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0053] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0054] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0055] It should be noted that: similar reference numerals and letters in the following drawings represent similar items, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0056] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the indicated device or element 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. In addition, the terms "first", "second" and the like are only used to distinguish description, and cannot be understood as indicating or implying relative importance.

[0057] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrange", "mount", "connect", "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 inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0058] As Figure 1 and Figure 2As shown in the figure, a cable strength detection device includes a base 1, and a support table 2 is arranged on the lower surface of the base 1. The upper surface of the base 1 is provided with a cable strength positioning detection mechanism 3, a first cable limiting mechanism 5, and a second cable limiting mechanism 6.

[0059] The first cable limiting mechanism 5 and the second cable limiting mechanism 6 are respectively arranged on the two sides of the cable strength positioning detection mechanism 3, and the first cable limiting mechanism 5 and the second cable limiting mechanism 6 can move on the base 1. The first cable limiting mechanism 5 and the second cable limiting mechanism 6 are used for fixing the limiting section of the cable 4. The cable strength positioning detection mechanism 3 is fixed on the base 1, and the cable strength positioning detection mechanism 3 is used for fixing the section to be detected of the cable 4.

[0060] The cable 4 can pass through the cable strength positioning detection mechanism 3, the first cable limiting mechanism 5, and the second cable limiting mechanism 6.

[0061] The purpose of such design is that, by arranging the cable strength detection device including the cable strength positioning detection mechanism, the first cable limiting mechanism, and the second cable limiting mechanism, on one hand, after positioning the section to be detected, two additional fixing points can be added, which can reduce the shaking of the cable during detection, improve the accuracy of detection, and on the other hand, the two additional fixing points can also be used for strength detection after being matched with a tension sensor. In this way, the strength data of multiple points can be obtained in one detection, so as to obtain the overall trend of the cable strength and the stress distribution of different positions when affected by tension. The problem that the existing technology can only detect the strength of one detection point and cannot obtain the cable strength data except the detection point, so as to obtain the overall trend of the cable strength and the stress distribution of different positions when affected by tension is solved.

[0062] In this embodiment, a slidable structure of the first cable limiting mechanism 5 and the second cable limiting mechanism 6 is provided, in which the upper surface of the base 1 is provided with a first sliding groove 11 and a second sliding groove 12. The first sliding groove 11 and the second sliding groove 12 are respectively arranged on the two sides of the cable strength positioning detection mechanism 3 and are arranged along the direction in which the cable 4 passes through the cable strength positioning detection mechanism 3.

[0063] It should be pointed out that, as shown in the figure, Figure 4 In actual use, in order to improve the connection tightness of the first cable limiting mechanism 5 and the second cable limiting mechanism 6 with the sliding grooves, a protruding part can be arranged below the cable limiting mechanism in general. The structure of the protruding part is matched with the shape of the sliding groove, which can be a I-shaped structure or other common structures.

[0064] In this embodiment, a specific structure of the first cable limiting mechanism is also provided, in which the first cable limiting mechanism 5 includes a first pressing machine 9, a first push rod 27, a first limiting shell 7, and a first limiting part.

[0065] The first limiting shell 7 is open at both ends, and the cable 4 can pass through the first limiting shell 7, and a first limiting cavity 30 is arranged in the first limiting shell 7;

[0066] The first limiting part is arranged in the first limiting cavity 30, and the first limiting part can clamp the cable 4;

[0067] The first pressing machine 9 is arranged at the top of the first limiting shell 7, and one end of the power output end of the first pressing machine 9 is connected with the first push rod 27;

[0068] The other end of the first push rod 27 is connected with the first limiting part.

[0069] Meanwhile, the first limiting part includes a first upper limiting clamp 29 and a first lower limiting clamp 28, the first upper limiting clamp 29 and the first lower limiting clamp 28 are oppositely arranged, and a groove matched with the outer peripheral size of the cable 4 is arranged on the opposite side;

[0070] The first upper limiting clamp 29 is detachably connected with the first push rod 27, and the first upper limiting clamp 29 can move up and down in the first limiting cavity 30;

[0071] The first lower limiting clamp 28 is arranged below the first upper limiting clamp 29 and is detachably connected with the bottom of the first limiting cavity 30.

[0072] The purpose of such design is that the pressing machine arranged above exerts a force on the first push rod, so that the first push rod moves downward, and the first upper limiting clamp moves downward at the same time, thereby clamping and fixing the cable placed on the first lower limiting clamp.

[0073] It should be pointed out that in specific implementation, in addition to this arrangement, a return spring and a rotating screw can also be used for replacement, the rotating screw exerts a downward force on the first upper limiting clamp by rotating downward, and the return spring resets the structure after clamping and fixing.

[0074] In addition, through the detachable structure, the on-site staff can replace different adaptive upper and lower limiting clamps according to the size of the cable.

[0075] It should be further pointed out that at present, the technical solution provided in the application is mainly improved in structure, and a tension sensor needs to be added to display the cable strength, and the person skilled in the art can arrange the tension sensor near the upper and lower limiting clamps when implementing the present solution.

[0076] In the embodiment, a specific structure of a second cable limiting mechanism is also provided, wherein the second cable limiting mechanism 6 includes a second pressing machine 10, a second push rod, a second limiting shell 8 and a second limiting part;

[0077] The second limiting shell 8 is open at both ends, and the cable 4 can pass through the second limiting shell 8, and a second limiting cavity is arranged in the second limiting shell 8;

[0078] The second limiting part is arranged in the second limiting cavity, and the second limiting part can clamp the cable 4;

[0079] The second pressing machine 10 is arranged at the top of the second limiting shell 8, and the power output end of the second pressing machine 10 is connected with one end of the second push rod;

[0080] The other end of the second push rod is connected with the second limiting part.

[0081] It should be pointed out that in the embodiment, the functions of the first limiting part and the second limiting part are the same, so the structures of the two can also be selected to be the same in specific implementation.

[0082] As shown in Figure 3 In the embodiment, the first cable limiting mechanism 5 further comprises a first positioning block 15 and a second positioning block 16;

[0083] The first positioning block 15 and the second positioning block 16 are respectively arranged on both sides of the first limiting shell 7, and are respectively connected with the outer wall of the first limiting shell 7 through a first connecting rod 17 and a second connecting rod 18;

[0084] The second cable limiting mechanism 6 further comprises a third positioning block 21 and a fourth positioning block 22;

[0085] The third positioning block 21 and the fourth positioning block 22 are respectively arranged on both sides of the second limiting shell 8, and are respectively connected with the outer wall of the second limiting shell 8 through a third connecting rod 23 and a fourth connecting rod 24.

[0086] In addition, the base 1 is further provided with a first positioning groove 19, a second positioning groove 20, a third positioning groove 25 and a fourth positioning groove 26;

[0087] The first positioning groove 19, the second positioning groove 20, the third positioning groove 25 and the fourth positioning groove 26 are all provided with tooth-shaped bosses at the bottom;

[0088] The tooth-shaped boss in the first positioning groove 19 and the tooth-shaped boss in the second positioning groove 20 are opposite to each other;

[0089] The tooth-shaped boss in the third positioning groove 25 and the tooth-shaped boss in the fourth positioning groove 26 are opposite to each other;

[0090] The first positioning block 15, the second positioning block 16, the third positioning block 21 and the fourth positioning block 22 can be respectively put into the first positioning groove 19, the second positioning groove 20, the third positioning groove 25 and the fourth positioning groove 26.

[0091] The purpose of such design is that, in specific implementation, the first cable limiting mechanism and the second cable limiting mechanism can move in position as needed for detection, in order to enable better fixation after displacement and reduce shaking during detection.

[0092] After the positioning block and the positioning groove are fixed, the connecting rod is used to fix the limiting shell.

[0093] As shown in Figure 5 In this embodiment, the cable strength positioning detection mechanism 3 includes a shell, a detection cavity 32, and a third limiting part.

[0094] The shell has an open structure at both ends, and the cable 4 can pass through the shell.

[0095] The detection cavity 32 is arranged in the shell.

[0096] The third limiting part is arranged in the detection cavity 32, and the third limiting part can clamp the cable 4 passing through the shell.

[0097] In addition, the third limiting part includes a third upper limiting clamp 34, a third lower limiting clamp 35, a pull rod 33, and a stretching machine 36.

[0098] The stretching machine 36 is arranged on the lower surface of the base 1 and below the shell, and the stretching machine 36 can drive the pull rod 33 to move up and down.

[0099] The pull rod 33 passes through the stretching machine 36, and one end of the pull rod 33 is connected with the third upper limiting clamp 34.

[0100] The third upper limiting clamp 34 is arranged above the third lower limiting clamp 35 and is arranged opposite to the third lower limiting clamp 35, and the opposite surface is provided with a groove matching the outer diameter of the cable 4, and the third upper limiting clamp 34 is in contact with the inner wall of the detection cavity 32.

[0101] The third lower limiting clamp 35 is arranged on the base 1 and between adjacent pull rods 33.

[0102] The purpose of such design is that, the third limiting part adopts a clamping and fixing method different from the first cable limiting mechanism and the second cable limiting mechanism, and a display screen can be arranged on the surface of the shell of the cable strength positioning detection mechanism in specific implementation, and the cable strength detection data transmitted by the tension sensor can be displayed through wireless connection or wired connection.

[0103] It should be noted that the technical scheme provided by the present application is mainly improved in structure, and the existing tension sensor needs to be added to display the cable strength. The person skilled in the art can set the tension sensor on the upper and lower limit position clamps during implementation of the present application.

[0104] Although the present application has been described in detail with reference to the foregoing embodiments, the skilled in the art can modify the technical scheme recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cable strength detection device, comprising a base (1), wherein a support platform (2) is provided on the lower surface of the base (1), characterized in that: The upper surface of the base (1) is provided with a cable strength positioning detection mechanism (3), a first cable limiting mechanism (5) and a second cable limiting mechanism (6); The first cable limiting mechanism (5) and the second cable limiting mechanism (6) are respectively arranged on both sides of the cable strength positioning detection mechanism (3), and the first cable limiting mechanism (5) and the second cable limiting mechanism (6) are movable on the base (1), and the first cable limiting mechanism (5) and the second cable limiting mechanism (6) are used to fix the limiting section of the cable (4); The cable strength positioning detection mechanism (3) is fixed on the base (1), and the cable strength positioning detection mechanism (3) is used to fix the section of the cable (4) to be detected; The cable (4) can pass through the cable strength positioning detection mechanism (3), the first cable limiting mechanism (5) and the second cable limiting mechanism (6).

2. A cable strength detection device according to claim 1, characterized in that: A first slide groove (11) and a second slide groove (12) are provided on the upper surface of the base (1); the first slide groove (11) and the second slide groove (12) are respectively provided on both sides of the cable strength positioning detection mechanism (3), and are arranged along the direction in which the cable (4) passes through the cable strength positioning detection mechanism (3).

3. A cable strength detection device according to claim 1, characterized in that: The first cable limiting mechanism (5) comprises a first press (9), a first push rod (27), a first limiting shell (7) and a first limiting portion; Both ends of the first limiting shell (7) are open structures, and the cable (4) can pass through the first limiting shell (7). A first limiting cavity (30) is provided in the first limiting shell (7); The first limiting portion is disposed in the first limiting cavity (30), and the first limiting portion is capable of clamping the cable (4); The first press (9) is arranged on the top of the first limiting shell (7), and the power output end of the first press (9) is connected to one end of the first push rod (27); The other end of the first push rod (27) is connected to the first limiting portion.

4. A cable strength detection device according to claim 3, characterized in that: The first limiting portion comprises a first upper limiting clamp (29) and a first lower limiting clamp (28), the first upper limiting clamp (29) and the first lower limiting clamp (28) being arranged opposite to each other, and a groove matching the outer circumference size of the cable (4) is provided on the opposite side; The first upper limit clamp (29) is detachably connected to the first push rod (27), and the first upper limit clamp (29) can move up and down in the first limit cavity (30); The first lower limiting clamp (28) is arranged below the first upper limiting clamp (29) and is detachably connected to the bottom of the first limiting cavity (30).

5. A cable strength detection device according to claim 3, characterized in that: The second cable limiting mechanism (6) comprises a second press (10), a second push rod, a second limiting shell (8) and a second limiting portion; Both ends of the second limiting shell (8) are open structures, and the cable (4) can pass through the second limiting shell (8), and a second limiting cavity is provided in the second limiting shell (8); The second limiting portion is arranged in the second limiting cavity, and the second limiting portion can clamp the cable (4); The second press (10) is arranged on the top of the second limiting shell (8), and the power output end of the second press (10) is connected to one end of the second push rod; The other end of the second push rod is connected to the second limiting portion.

6. A cable strength detection device according to claim 5, characterized in that: The second limiting portion has the same structure as the first limiting portion.

7. A cable strength detection device according to claim 5, characterized in that: The first cable limiting mechanism (5) further comprises a first positioning block (15) and a second positioning block (16); The first positioning block (15) and the second positioning block (16) are respectively arranged on both sides of the first limiting shell (7), and are respectively connected to the outer wall of the first limiting shell (7) through a first connecting rod (17) and a second connecting rod (18); The second cable limiting mechanism (6) further comprises a third positioning block (21) and a fourth positioning block (22); The third positioning block (21) and the fourth positioning block (22) are respectively arranged on both sides of the second limiting shell (8), and are respectively connected to the outer wall of the second limiting shell (8) through a third connecting rod (23) and a fourth connecting rod (24).

8. A cable strength detection device according to claim 7, characterized in that: The base (1) is further provided with a first positioning groove (19), a second positioning groove (20), a third positioning groove (25) and a fourth positioning groove (26); The bottoms of the first positioning groove (19), the second positioning groove (20), the third positioning groove (25) and the fourth positioning groove (26) are all provided with tooth-shaped bosses; The tooth-shaped boss in the first positioning groove (19) and the tooth-shaped boss in the second positioning groove (20) face in opposite directions; The inner tooth-shaped boss of the third positioning groove (25) and the inner tooth-shaped boss of the fourth positioning groove (26) face in opposite directions; The first positioning block (15), the second positioning block (16), the third positioning block (21) and the fourth positioning block (22) can be placed in the first positioning groove (19), the second positioning groove (20), the third positioning groove (25) and the fourth positioning groove (26) respectively.

9. The cable strength detection device according to claim 1, characterized in that: The cable strength positioning detection mechanism (3) comprises a housing, a detection cavity (32) and a third limiting portion; Both ends of the shell are open structures, and the cable (4) can pass through the shell; The detection cavity (32) is arranged in the housing; The third limiting portion is arranged in the detection cavity (32), and the third limiting portion can clamp the cable (4) passing through the shell.

10. A cable strength detection device according to claim 9, characterized in that: The third limiting portion includes a third upper limiting clamp (34), a third lower limiting clamp (35), a pull rod (33) and a stretching machine (36); The stretching machine (36) is arranged on the lower surface of the base (1) and is located below the shell. The stretching machine (36) can drive the pull rod (33) to move up and down; The pull rod (33) passes through the stretching machine (36), and one end of the pull rod (33) is connected to the third upper limit clamp (34); The third upper limit clamp (34) is arranged above the third lower limit clamp (35) and is arranged opposite to the third lower limit clamp (35), and a groove matching the outer circumference size of the cable (4) is provided on the opposite side, and the third upper limit clamp (34) contacts the inner wall of the detection cavity (32); The third lower limit clamp (35) is provided on the base (1) and is located between adjacent pull rods (33).

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