A cable bending performance detection device and method

Abstract

The present application relates to cable detection technical field, especially to a kind of cable bending performance detection device and method.The present application provides a kind of cable bending performance detection device for quickly adjusting cable bending state, improve the diversity of detection result.A kind of cable bending performance detection device, including installation frame, cover plate, locking piece, adjusting piece and driven piece etc., cover plate is rotatably connected in installation frame front side, locking piece is rotatably connected in installation frame right part front side, adjusting piece is slidably connected in installation frame left part, driven piece is rotatably connected on adjusting piece.The present application adjusts the position of adjusting piece to adjust the tightness degree of cable, then rotates first rotating part to make that pulley assembly operates, in turn drives adjusting piece to unfold to push sliding piece, at this time, the part of cable and sliding piece contact will be further bent and deformed, realize the effect of adjusting cable bending degree, avoid cable to keep the same bending state, improve the accuracy of detection.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable detection, and in particular to a cable bending performance detection device and method. BACKGROUND

[0002] A cable refers to an electrical device used to transmit power or signals, which is composed of a group of wires or optical cables coated with insulating material and an outer protective material. After the production of the cable is completed, the cable needs to be tested comprehensively to ensure that the cable can be normally put into use.

[0003] The patent with the publication number CN114062159A discloses a cable bending test device and test method, wherein the cable bending test device comprises a frame body, a first bending spool wheel installed on the frame body, a second bending spool wheel installed on the frame body and located below the first bending spool wheel, a rotating motor installed on the frame body and connected to one of the first bending spool wheel and the second bending spool wheel to drive the first bending spool wheel or the second bending spool wheel to rotate, and a tensioning assembly connected to one of the first bending spool wheel and the second bending spool wheel and applying a tensioning force to the first bending spool wheel or the second bending spool wheel. Although the device can test the bending performance of the cable through winding test, the cable always maintains the same bending state during the test, which leads to single detection results and reduced detection accuracy.

[0004] Therefore, in view of the above problems, the present application provides a cable bending performance detection device capable of quickly adjusting the bending state of the cable and improving the diversity of detection results. SUMMARY

[0005] In order to overcome the shortcomings of the prior art that the cable always maintains the same bending state during the test, which leads to single detection results and reduced detection accuracy, the present application provides a cable bending performance detection device capable of quickly adjusting the bending state of the cable and improving the diversity of detection results.

[0006] The technical implementation scheme of the present application is as follows:

[0007] A cable bending performance testing device includes a mounting frame, a cover plate, a locking component, an adjusting component, a driven component, and a testing mechanism. The cover plate is rotatably connected to the front side of the mounting frame, the locking component is rotatably connected to the front right side of the mounting frame, the adjusting component is slidably connected to the left side of the mounting frame, and the driven component is rotatably connected to the adjusting component. The testing mechanism includes a first drive motor, a turntable, a sliding component, a fixing component, a pulley assembly, a first rotating component, and an adjusting component. The first drive motor is connected to the mounting frame near the inner right wall. The turntable is connected to the output shaft of the first drive motor, and the sliding component is slidably connected to the turntable. The fixing component is connected to the mounting frame near the turntable, and the first rotating component is rotatably connected to a part of the fixing component near the turntable. Three adjusting components are rotatably connected to the first fixing component, and a pulley assembly is connected between each adjusting component and the first rotating component.

[0008] As a further preferred embodiment, the testing mechanism also includes a gear, a toothed sliding frame, a first fixed seat, and a rotating threaded component. The gear is connected to the first rotating component, the first fixed seat is connected to the top of the fixed component, the toothed sliding frame that can mesh with the gear is slidably connected to the first fixed seat, and the rotating threaded component for adjusting the position is threadedly connected to the toothed sliding frame.

[0009] As a further preferred embodiment, a tensioning mechanism is also included. The tensioning mechanism includes a second drive motor, a lead screw, and a guide rod. The second drive motor is connected to the top of the mounting frame near the adjusting member. The output shaft of the second drive motor is oriented to the left. The lead screw is connected to the output shaft of the second drive motor. The lead screw is rotatably connected to the top of the mounting frame. The guide rod is connected to the rear side of the top of the mounting frame. The adjusting member is slidably connected to the guide rod and threadedly connected to the lead screw.

[0010] As a further preferred embodiment, a clamping mechanism is also included. The clamping mechanism includes a mounting frame, clamping elements, springs, connecting frames, and rollers. Mounting frames are connected to both the front and rear sides of the right side of the mounting frame. Two clamping elements for clamping and limiting the sliding elements are slidably connected to the mounting frames. Springs are connected between the clamping elements and the mounting frames, and the springs are wound around the mounting frames. Connecting frames that can be pushed and slid by toothed sliding frames are slidably connected between the mounting frames. Rollers that can push the clamping elements are rotatably connected to the upper and lower sides of the front and rear sides of the connecting frames.

[0011] As a further preferred embodiment, a synchronization mechanism is also included, which includes a synchronization wheel, a second rotating member, and a synchronization belt. The synchronization wheel is connected to the lower part of the driven member, and the second rotating member is rotatably connected to the inner left wall of the mounting frame. A synchronization belt is wound between the second rotating member and the turntable, and the synchronization belt meshes with the synchronization wheel.

[0012] As a further preferred, still further comprising a connecting mechanism, the connecting mechanism comprising a second fixing base, a third rotating piece and a connecting piece, the second fixing base is connected to the middle position of the upper side of the front part of the mounting frame, the third rotating piece is rotatably connected to the second fixing base, the connecting piece for connecting the two ends of the cable is clamped to the rear part of the third rotating piece, and the rear part of the third rotating piece is a C-shaped structure.

[0013] As a further preferred, still further comprising a limiting mechanism, the limiting mechanism comprising a third fixing base, a limiting piece and a clamping bolt, the third fixing base is connected to the upper side of the rear part of the mounting frame, the limiting piece for limiting and guiding the cable is rotatably connected to the third fixing base, and the clamping bolt capable of being clamped between the limiting piece is slidably connected to the third fixing base.

[0014] As a further preferred, the adjusting pieces are all arc-shaped structures.

[0015] As a further preferred, the belt pulley assembly comprises belt pulleys and a transmission belt, the belt pulleys are all installed on the adjusting pieces and the rotating pieces, and the transmission belt is wound around the belt pulleys respectively.

[0016] A use method of a cable bending performance detection device, and the specific steps are as follows:

[0017] Step 1: when testing, first, the cable is wound around the driven piece and the rotating disc, then the second driving motor is controlled to drive the lead screw to rotate, the position of the adjusting piece is adjusted, the tightness of the cable is adjusted, and then the two ends of the cable are connected and closed through the connecting piece;

[0018] Step 2: then, the cable is placed on the third fixing base, the cable is guided by the limiting piece and the third fixing base, then the rotating screw is rotated and adjusted, so that the toothed sliding frame and the gear are disengaged, then the first rotating piece is adjusted so that the adjusting piece is opened, then the first driving motor is started to drive the rotating disc to rotate, in the process of rotating the rotating disc, the adjusting piece drives the sliding piece to slide and expand, so that the bending state of the cable changes;

[0019] Step 3: with the reset of the toothed sliding frame, the compression pieces are compressed under the cooperation of the springs and the rollers, so as to prevent the sliding piece from sliding accidentally and causing abnormal bending test of the cable;

[0020] Step 4: in the process of rotating the rotating disc, the synchronous wheel, the second rotating piece and the synchronous belt cooperate to ensure that the driven piece and the rotating disc rotate stably and synchronously, and after the detection is completed, the first driving motor is turned off.

[0021] The present application has the following advantages:

[0022] 1. This invention adjusts the tightness of the cable by adjusting the position of the adjusting component. Then, the first rotating component is rotated to make the pulley assembly run, which in turn drives the adjusting component to unfold and push the sliding component. At this time, the part of the cable that contacts the sliding component will be further bent and deformed, thereby achieving the effect of adjusting the degree of cable bending, avoiding the cable from always maintaining the same bending state, and improving the accuracy of detection.

[0023] 2. This invention uses the output shaft of the second drive motor to drive the lead screw to rotate, thereby quickly adjusting the position of the adjusting component, realizing rapid adjustment of the tightness of the cable winding and improving adjustment efficiency.

[0024] 3. The present invention uses a toothed sliding frame to drive the connecting frame to move, so that the sliding part is no longer limited, making it easier for the inspection personnel to adjust the sliding part. After the adjustment is completed, as the toothed sliding frame resets, the clamping parts will push the rollers to move under the action of the spring, thereby resetting the connecting frame. At the same time, the clamping parts will press and limit the upper and lower sides of the sliding part, improving the stability of the clamping parts. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0026] Figure 2 This is a partial structural schematic diagram of the present invention.

[0027] Figure 3 This is a three-dimensional structural diagram of the detection mechanism of the present invention.

[0028] Figure 4 This is a partial three-dimensional structural diagram of the detection mechanism of the present invention.

[0029] Figure 5 This is a three-dimensional structural diagram of the tensioning mechanism of the present invention.

[0030] Figure 6 This is a partial three-dimensional structural diagram of the clamping mechanism of the present invention.

[0031] Figure 7 This is a three-dimensional structural diagram of the synchronization mechanism of the present invention.

[0032] Figure 8 This is a partial three-dimensional structural diagram of the connecting mechanism of the present invention.

[0033] Figure 9 This is a partial three-dimensional structural diagram of the limiting mechanism of the present invention.

[0034] Figure 10 This is a cross-sectional three-dimensional structural diagram of the limiting mechanism of the present invention.

[0035] Wherein: 1-installation frame, 2-cover plate, 3-locking element, 4-adjusting element, 5-follower, 6-detection mechanism, 61-first drive motor, 62-rotary disc, 63-sliding element, 64-fixing element, 65-pulley assembly, 66-first rotating element, 67-gear, 68-toothed sliding frame, 69-first fixing seat, 610-rotary threaded element, 611-adjusting element, 7-tensioning mechanism, 71-second drive motor, 72-screw rod, 73-guide rod, 8-pressing mechanism, 81-mounting frame, 82-pressing element, 83-spring, 84-connecting frame, 85-roller, 9-synchronization mechanism, 91-synchronization wheel, 92-second rotating element, 93-synchronization belt, 10-connecting mechanism, 101-second fixing seat, 102-third rotating element, 103-connecting element, 11-limiting mechanism, 111-third fixing seat, 112-limiting element, 113-latch. DETAILED DESCRIPTION

[0036] The application will be further described below in connection with specific embodiments. It needs to be noted that unless otherwise explicitly specified and limited, terms such as: setting, installing, connecting, and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0037] A cable bending performance detection device, such as Figures 1-4As shown in the figure, it comprises a mounting frame 1, a cover plate 2, a locking piece 3, an adjusting piece 4, a driven piece 5 and a detection mechanism 6, the cover plate 2 is rotatably connected to the front side of the mounting frame 1, the locking piece 3 for locking and fixing the cover plate 2 is rotatably connected to the front side of the right part of the mounting frame 1, the adjusting piece 4 is slidably connected to the left part of the mounting frame 1, the driven piece 5 is rotatably connected to the adjusting piece 4, the detection mechanism 6 comprises a first driving motor 61, a rotating disc 62, a sliding piece 63, a fixed piece 64, a pulley assembly 65, a first rotating piece 66 and an adjusting piece 611, the first driving motor 61 is bolted to the position close to the inner right wall of the mounting frame 1, the output shaft of the first driving motor 61 is upwardly arranged, the rotating disc 62 for winding the cable in cooperation with the driven piece 5 is connected to the output shaft of the first driving motor 61, the sliding piece 63 for adjusting the bending degree of the cable is slidably connected to the rotating disc 62, the fixed piece 64 is bolted to the position close to the rotating disc 62 of the mounting frame 1, the first rotating piece 66 is rotatably connected to the part of the fixed piece 64 close to the rotating disc 62, three adjusting pieces 611 for pushing the sliding piece 63 are rotatably connected to the first fixed piece 64, the adjusting pieces 611 are all arc-shaped structures, the pulley assembly 65 is connected between the adjusting piece 611 and the first rotating piece 66, the pulley assembly 65 comprises pulleys and transmission belts, the pulleys are all mounted on the adjusting piece 611 and the rotating piece, and the transmission belts are respectively wound around the pulleys.

[0038] As shown in the figure, Figure 1 , Figure 2 and Figure 4 The detection mechanism 6 further comprises a gear 67, a toothed sliding frame 68, a first fixed seat 69 and a rotating threaded piece 610, the gear 67 is connected to the first rotating piece 66, the first fixed seat 69 is bolted to the top of the fixed piece 64, the toothed sliding frame 68 is slidably connected to the first fixed seat 69, the toothed sliding frame 68 can be intermeshed with the gear 67, and the rotating threaded piece 610 is threadedly connected to the toothed sliding frame 68, and the rotating threaded piece 640 is used for adjusting the position.

[0039] It needs to be explained that when the cable is factory, the cable needs to be detected from multiple directions, so as to ensure that the cable can be used normally, at this time the device can be used to detect the bending performance of the cable, first the cable is wound between the driven part 5 and the turntable 62, and the position of the adjusting part 4 is adjusted, so as to adjust the tightness of the cable, after adjustment, start the first driving motor 61, the output shaft of the first driving motor 61 drives the turntable 62 to rotate, so that the cable starts to rotate, in the process of cable rotation, the bending degree of each part of the cable can be tested, and the tester can rotate the rotating screw 610 during the process, so that the toothed sliding frame 68 slides to the right and disengages with the gear 67, then the first rotating part 66 is rotated, so that the belt pulley assembly 65 starts to rotate, and then the adjusting part 611 rotates outward, at this time, with the continuous rotation of the turntable 62, the sliding part 63 will contact and be extruded by the adjusting part 611, so as to slide outward, and then push the cable, so that the position of the cable contacting with the sliding part 63 is deformed, realizing the effect of adjusting the bending degree of the cable, avoiding that the cable always keeps the same bending state, and improving the accuracy of detection.

[0040] After adjustment, the rotating screw 610 is reversely rotated, so that the toothed sliding frame 68 slides left to reset and engages with the gear 67, so that the first rotating part 66 cannot continue to rotate, avoiding that the adjusting part 611 resets, after detection, the first driving motor 61 is turned off, and the cable is taken out, if the tester needs to overhaul and maintain the parts in the mounting frame 1, only need to rotate the locking part 3, so that the cover plate 2 is unlocked, then the cover plate 2 is opened, as described above, the position of the adjusting part 4 is adjusted to adjust the tightness of the cable, then the first rotating part 66 is rotated to make the belt pulley assembly 65 rotate, and then drive the adjusting part 611 to expand and push the sliding part 63, at this time, the parts of the cable contacting with the sliding part 63 will be further bent and deformed, realizing the effect of adjusting the bending degree of the cable, avoiding that the cable always keeps the same bending state, and improving the accuracy of detection.

[0041] As shown in Figure 2 and Figure 5 , further comprising a tensioning mechanism 7, the tensioning mechanism 7 comprises a second driving motor 71, a lead screw 72 and a guide rod 73, the mounting frame 1 is connected with the second driving motor 71 through bolts near the position of the adjusting part 4 on the top, the lead screw 72 is connected with the output shaft of the second driving motor 71, the lead screw 72 is rotatably connected with the top of the mounting frame 1, the guide rod 73 is connected to the rear side of the top of the mounting frame 1, the adjusting part 611 is slidably connected with the guide rod 73, and the adjusting part 611 is threadedly connected with the lead screw 72.

[0042] It should be noted that, in order to avoid manual adjustment of the position of the adjusting part 4, resulting in low efficiency, the second driving motor 71 can be directly started, the output shaft of the second driving motor 71 drives the screw rod 72 to rotate, so that the adjusting part 4 slides left and right under the guidance of the guide rod 73, thereby adjusting the position of the adjusting part 4. After adjustment is completed, the second driving motor 71 is turned off. As described above, the output shaft of the second driving motor 71 drives the screw rod 72 to rotate, thereby quickly adjusting the position of the adjusting part 4, achieving quick adjustment of the tightness of the cable during winding, and improving the adjustment efficiency.

[0043] As shown in Figure 1 , Figure 2 and Figure 6 , it also comprises a pressing mechanism 8, which comprises a mounting frame 81, a pressing part 82, a spring 83, a connecting frame 84 and a roller 85. The mounting frame 81 is connected to the right part of the mounting frame 1 on both sides by bolts. The upper and lower pressing parts 82 are connected to the mounting frame 81 in a sliding manner. The pressing parts 82 are used to press and limit the sliding part 63. The spring 83 is connected between the pressing part 82 and the mounting frame 81. The connecting frame 84 is connected between the mounting frames 81 in a sliding manner and can be pushed by the toothed sliding frame 68 to slide. The roller 85 is connected to the upper and lower sides of the front and rear parts of the connecting frame 84 in a rotating manner and can push the pressing part 82.

[0044] It should be noted that when the sliding part 63 is adjusted by the detection personnel, the toothed sliding frame 68 will push the connecting frame 84 to the right, so that the connecting frame 84 slides to the right, thereby driving the roller 85 to move to the right. With the roller 85 moving to the right, the adjacent pressing part 82 will slide apart to the side away from each other, and the corresponding spring 83 will be compressed under stress. At this time, the sliding part 63 is no longer pressed and limited by the pressing part 82, and the position of the sliding part 63 can be quickly adjusted. After adjustment is completed, the toothed sliding frame 68 slides left to reset. At this time, the connecting frame 84 is no longer pushed and extruded. Since the roller 85 is in contact with the pressing part 82, the pressing part 82 will slide down to reset under the action of the spring 83 and extrude the roller 85, so that the roller 85 drives the connecting frame 84 to slide left to reset. At the same time, the pressing part 82 presses and limits the sliding part 63, improving the stability of the sliding part 63. As described above, the toothed sliding frame 68 pushes the connecting frame 84 to move, so that the sliding part 63 is no longer limited, facilitating the detection personnel to adjust the sliding part 63. After adjustment is completed, the toothed sliding frame 68 resets, and the pressing part 82 will push the roller 85 to move under the action of the spring 83, so that the connecting frame 84 resets, and the pressing part 82 presses and limits the sliding part 63 on both sides, improving the stability of the pressing part 82.

[0045] As Figure 1 , Figure 2 and Figure 7 shown, also includes a synchronization mechanism 9, the synchronization mechanism 9 includes a synchronization wheel 91, the second rotating part 92 and the synchronous belt 93, the synchronization wheel 91 is connected at the lower part of the driven member 5, the second rotating part 92 is rotatably connected at the position close to the inner left wall inside the installation frame 1, the second rotating part 92 and the rotating disc 62 are wound with the synchronous belt 93, the synchronous belt 93 and the synchronization wheel 91 are engaged with each other.

[0046] It should be noted that the driven wheel driven by the cable lacks stability, therefore through the cooperation between the synchronous belt 93 and the synchronization wheel 91, when the rotating disc 62 starts to rotate under the driving of the output shaft of the first driving motor 61, the rotating disc 62 will drive the synchronous belt 93 to rotate, so that the second rotating part 92 also starts to rotate, the synchronous belt 93 will drive the synchronization wheel 91 to rotate at the same time, and then the driven member 5 and the rotating disc 62 keep a stable synchronous rotating state, in summary, through the cooperation between the synchronous belt 93 and the synchronization wheel 91, the driven member 5 can keep a stable synchronous rotating state with the rotating disc 62 during the rotation of the rotating disc 62.

[0047] As Figure 1 , Figure 2 and Figure 8 shown, also includes a connection mechanism 10, the connection mechanism 10 includes a second fixed seat 101, a third rotating part 102 and a connecting piece 103, the second fixed seat 101 is connected at the middle position of the upper side of the front part of the installation frame 1, the third rotating part 102 is rotatably connected on the second fixed seat 101, the connecting piece 103 is clamped on the rear part of the third rotating part 102, the connecting piece 103 is used for connecting the two ends of the cable, the rear part of the third rotating part 102 is C-shaped structure, which can be clamped with the connecting piece 103.

[0048] It should be noted that when the bending performance of the cable is detected, the connecting piece 103 can be taken out from the third rotating part 102, then the third rotating part 102 is flipped forward, so as to avoid the third rotating part 102 blocking the operation of the cable, then the two ends of the cable are clamped in the connecting piece 103, so that the cable can quickly form a ring closed state, which is convenient for bending test.

[0049] As Figure 1 , Figure 2 , Figure 9 and Figure 10As shown, further comprises a limiting mechanism 11, the limiting mechanism 11 includes a third fixed seat 111, limiting piece 112 and the bolt 113, the mounting frame 1 rear upper side is connected with the third fixed seat 111 by bolt, the third fixed seat 111 is rotatably connected with the limiting piece 112, the limiting piece 112 is used for limiting the cable guiding, the third fixed seat 111 is slidably connected with the bolt 113, the bolt 113 can be clamped between the limiting piece 112.

[0050] It should be noted that, in the process of bending test for cable, in order to ensure the stability of the cable movement, the bolt 113 can be pulled to the left, so that the limiting piece 112 is no longer locked, then the limiting piece 112 is turned back to open, and the cable is placed on the top of the third fixed seat 111, then the limiting piece 112 is turned back to reset, and the limiting piece 112 is locked by the bolt 113, so that the cable is guided by the cooperation between the limiting piece 112 and the third fixed seat 111 in the process of cable movement.

[0051] A kind of cable bending performance detection device's use method, specific steps are as follows:

[0052] Step 1: first, the cable is wound around the driven part 5 and the turntable 62 during testing, then the second drive motor 71 drives the screw 72 to rotate, the position of the adjusting part 4 is adjusted, the tightness of the cable is adjusted, then the two ends of the cable are connected by the connecting piece 103 to close;

[0053] Step 2: then the cable is placed on the third fixed seat 111, the cable is guided by the limiting piece 112 and the third fixed seat 111, then the rotating screw 610 is rotated to adjust, so that the toothed sliding frame 68 is disengaged from the gear 67, then the first rotating part 66 is adjusted to make the adjusting part 611 open, then the first drive motor 61 is started to make the turntable 62 rotate, the adjusting part 611 drives the sliding part 63 to slide and expand during the rotation of the turntable 62, so that the bending state of the cable changes;

[0054] Step 3: with the reset of the toothed sliding frame 68, the compression pieces 82 will be compressed under the cooperation of the springs 83 and the rollers 85, to prevent the sliding part 63 from sliding accidentally, which will cause the cable bending test to be abnormal;

[0055] Step 4: during the rotation of the turntable 62, the synchronous wheel 91, the second rotating part 92 and the synchronous belt 93 cooperate to ensure that the driven part 5 and the turntable 62 rotate stably and synchronously, and the first drive motor 61 is turned off after the detection is completed.

[0056] The above merely describes preferred embodiments of the present application, and is not used to limit the present application, 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 bending performance detection device, comprising a mounting frame (1), a cover plate (2), a locking member (3), an adjusting member (4), a driven member (5) and a detection mechanism (6), the cover plate (2) is rotatably connected to the front side of the mounting frame (1), the locking member (3) is rotatably connected to the front side of the right part of the mounting frame (1), the adjusting member (4) is slidably connected to the left part of the mounting frame (1), the driven member (5) is rotatably connected to the adjusting member (4), characterized in that, The detection mechanism (6) comprises a first driving motor (61), a rotating disc (62), a sliding piece (63), a fixed piece (64), a belt pulley assembly (65), a first rotating piece (66) and an adjusting piece (611), the first driving motor (61) is connected to the position close to the inner right wall of the mounting frame (1), the rotating disc (62) is connected to the output shaft of the first driving motor (61), the sliding piece (63) is slidably connected to the rotating disc (62), the fixed piece (64) is connected to the position close to the rotating disc (62) of the mounting frame (1), the first rotating piece (66) is rotatably connected to one part of the fixed piece (64) close to the rotating disc (62), the fixed piece (64) is rotatably connected to three adjusting pieces (611), and the belt pulley assembly (65) is connected between the adjusting piece (611) and the first rotating piece (66). The tensioning mechanism (7) comprises a second driving motor (71), a lead screw (72) and a guide rod (73), the second driving motor (71) is connected to the position close to the adjusting piece (4) on the inner top of the mounting frame (1), the output shaft of the second driving motor (71) is arranged in a left direction, the lead screw (72) is connected to the output shaft of the second driving motor (71), the lead screw (72) is rotatably connected to the inner top of the mounting frame (1), the guide rod (73) is connected to the rear side of the inner top of the mounting frame (1), the adjusting piece (611) is slidably connected to the guide rod (73), and the adjusting piece (611) is threadedly connected to the lead screw (72). The pressing mechanism (8) comprises a mounting bracket (81), a pressing piece (82), a spring (83), a connecting bracket (84) and a roller (85), the mounting bracket (81) is connected to the front and rear sides of the right part of the mounting frame (1), the pressing piece (82) is slidably connected to the mounting bracket (81), the spring (83) is connected between the pressing piece (82) and the mounting bracket (81), the spring (83) is wound on the mounting bracket (81), the connecting bracket (84) is slidably connected between the mounting brackets (81) and can be pushed to slide by the toothed sliding bracket (68), and the roller (85) is rotatably connected to the upper and lower sides of the front and rear parts of the connecting bracket (84) and can push the pressing piece (82). The adjusting pieces (611) are in arc-shaped structures.

2. A cable bend performance testing apparatus according to claim 1, wherein The detection mechanism (6) further comprises a gear (67), a toothed sliding bracket (68), a first fixed seat (69) and a rotating threaded piece (610), the gear (67) is connected to the first rotating piece (66), the first fixed seat (69) is connected to the top of the fixed piece (64), the toothed sliding bracket (68) is slidably connected to the first fixed seat (69) and can be meshed with the gear (67), and the rotating threaded piece (610) is threadedly connected to the toothed sliding bracket (68) and is used for adjusting the position.

3. A cable bend performance testing apparatus as claimed in claim 1, wherein, Synchronous mechanism (9) further includes synchronous wheel (91), second rotating part (92) and synchronous belt (93), synchronous wheel (91) is connected to the lower portion of driven part (5), second rotating part (92) is rotatably connected to the position close to the inner left wall in the interior of mounting frame (1), synchronous belt (93) is wound between second rotating part (92) and rotating disc (62), and synchronous belt (93) and synchronous wheel (91) are engaged with each other.

4. A cable bend performance testing apparatus as claimed in claim 3, wherein the cable bend performance testing apparatus further comprises a cable guide member disposed between the cable support member and the cable bending member. Further comprising a connecting mechanism (10), the connecting mechanism (10) comprises a second fixed seat (101), a third rotating part (102) and a connecting piece (103), the second fixed seat (101) is connected to the upper middle position of the front part of the mounting frame (1), the third rotating part (102) is rotatably connected to the second fixed seat (101), and the connecting piece (103) for connecting the two ends of the cable is connected to the rear part of the third rotating part (102), and the rear part of the third rotating part (102) is a C-shaped structure.

5. A cable bend performance testing apparatus as claimed in claim 4, wherein the cable is a coaxial cable. Further comprising a limiting mechanism (11), the limiting mechanism (11) comprises a third fixed seat (111), a limiting piece (112) and a clamping bolt (113), the third fixed seat (111) is connected to the upper rear part of the mounting frame (1), the limiting piece (112) for limiting and guiding the cable is rotatably connected to the third fixed seat (111), and the clamping bolt (113) capable of being clamped with the limiting piece (112) is slidably connected to the third fixed seat (111).

6. A cable bend performance testing apparatus as claimed in claim 1, wherein the belt The wheel assembly (65) comprises a belt pulley and a transmission belt, and the belt pulleys are installed on the adjusting piece (611) and the rotating part, and the transmission belts are wound between the belt pulleys.

7. A method of using a cable bend performance testing device according to any one of claims 1 to 6, characterized by, The specific steps are as follows: Step 1: when testing, first wind the cable around the driven part (5) and the rotating disc (62), then control the second drive motor (71) to drive the lead screw (72) to rotate, adjust the position of the adjusting piece (4), adjust the tightness of the cable, and then connect the two ends of the cable through the connecting piece (103) to close; Step 2: then place the cable on the third fixed seat (111), guide the cable through the limiting piece (112) and the third fixed seat (111), then rotate and adjust the rotating threaded part (610), so that the toothed sliding frame (68) and the gear (67) are disengaged, then adjust the first rotating part (66) to make the adjusting piece (611) open, then start the first drive motor (61) to make the rotating disc (62) rotate, and in the process of rotating the rotating disc (62), the adjusting piece (611) drives the sliding piece (63) to slide and expand, so that the bending state of the cable changes; Step 3: with the reset of the toothed sliding frame (68), the compression pieces (82) will be compressed under the cooperation of the springs (83) and the rollers (85) to compress the sliding pieces (63), so as to prevent the sliding pieces (63) from sliding accidentally and causing abnormal bending test of the cable. Step 4: During the rotation of the rotating disc (62), the cooperation between the synchronous wheel (91), the second rotating member (92) and the synchronous belt (93) ensures the stable synchronous rotation of the driven member (5) and the rotating disc (62), and the first driving motor (61) is turned off after the detection is completed.

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