CN218847855U - Cable bending test equipment capable of stably guiding - Google Patents

Abstract

The utility model relates to a cable bending test equipment of stable direction mainly is applied to and does the bending test to flexible high frequency cable conductor, and it includes the frame backplate, set up in frame backplate top in order to drive cable conductor horizontal hunting's rocker mechanism, set up in the frame backplate and lie in the fixture of rocker mechanism below in order to press from both sides tight cable conductor, be used for the guide mechanism of direction support cable conductor and set up in frame backplate bottom with the accredited testing organization of output cable conductor bending property test data. Guiding mechanism includes the direction and supports the backplate, slides and sets up in first sliding sleeve and second sliding sleeve and the drive of direction support backplate first sliding sleeve with the second sliding sleeve is towards the direction subassembly that slides that the direction that is close to or keeps away from each other, and first sliding sleeve cooperates the direction with the second sliding sleeve jointly and supports the cable conductor, slides towards the direction of keeping away from each other through direction subassembly drive first sliding sleeve that slides to vacate the space and made things convenient for the installation of cable conductor and wear to establish.

Description

Cable bending test equipment capable of stably guiding

Technical Field

The application relates to the field of flexible high-frequency cable testing, in particular to cable bending testing equipment capable of stably guiding.

Background

Cable bending test equipment is the test equipment of a special design to flexible high frequency cable, mainly does the bending property test that becomes more meticulous to flexible high frequency cable. The cable bending test equipment in the related technical means mainly comprises a rack back plate, a rocker arm mechanism arranged on the rack back plate, two clamping wheels positioned below the rocker arm mechanism, a fixed guide plate positioned below the two clamping wheels and a test mechanism for outputting cable bending performance test data; two clamp pulley symmetries rotate to set up on the frame backplate and cooperate jointly to form the centre gripping space that is used for pressing from both sides tight cable conductor, and fixed deflector corresponds the vertical direction in centre gripping space and has seted up the guiding hole in order being used for wearing to establish the cable conductor, and accredited testing organization is including hanging the stress test piece in the cable conductor bottom in order being used for hanging the cable conductor taut.

According to the related technical means, before the bending test, the top end of the cable is fixed on the rocker arm mechanism, then the cable penetrates through the clamping space and the guide hole, and finally the stress test block is hung at the bottom end of the cable and tensioned. After the test is started, the rocker arm mechanism drives the cable to swing left and right so as to drive the clamping wheels to rotate oppositely or inwards, and then the cable is driven to be bent repeatedly to collect test data. Although the guiding hole provides direction holding power for the cable conductor in the test process, has improved the cable conductor and has influenced the problem of measuring accuracy at the too big and influence of the crooked in-process swing range that relapses, when testing different cable conductors, all need stretch out the cable conductor tensioning earlier in order to wear to establish the guiding hole when installing the cable conductor at every turn to there is the problem of inconvenient installation cable conductor.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that inconvenient installation was worn to establish when testing different cable conductors, this application provides the crooked test equipment of cable of stable direction.

The application provides a cable bending test equipment of stable direction adopts following technical scheme.

A stably oriented cable bend testing apparatus comprising:

a rack back plate;

the rocker arm mechanism is arranged above the rack backboard and used for driving the cable to repeatedly swing left and right;

the clamping mechanism is arranged on the rack back plate and positioned below the rocker arm mechanism, and is provided with a clamping space for clamping a cable;

the guide mechanism is used for guiding and supporting the cable;

the testing mechanism is arranged at the bottom of the rack back plate to output cable bending performance testing data and comprises a stress testing block which is vertically and directly below the clamping space and used for hanging and tensioning the cable;

the guide mechanism comprises a guide support back plate, a first sliding sleeve and a second sliding sleeve which are arranged on the guide support back plate in a sliding mode, and a guide sliding assembly which drives the first sliding sleeve and the second sliding sleeve to slide towards the direction close to or away from each other, the first sliding sleeve and the second sliding sleeve jointly form a guide space for guiding and supporting the cable, and the guide space is located right below the clamping space; the guide sliding assembly drives the first sliding sleeve and the second sliding sleeve to slide towards the mutually approaching direction so as to form a first support state for guiding and supporting the cable; the guide sliding assembly drives the first sliding sleeve and the second sliding sleeve to slide towards the direction away from each other so as to form a second installation state for penetrating and installing the cable.

By adopting the technical scheme, when the cable is installed, the first sliding sleeve and the second sliding sleeve are driven to slide towards the directions away from each other by the guide sliding assembly, so that a space is vacated for installing the cable, and the cable is convenient to install; after the installation is accomplished, when testing different cable conductors, thereby the first sliding sleeve of drive resets with the second sliding sleeve and makes the direction space direction support live the cable conductor to improve the cable conductor and have the too big problem that influences the test data accuracy nature of swing range in the testing process.

Optionally, the direction subassembly of sliding is provided with wear to establish slide in first sliding sleeve and be fixed in the guide arm that slides of second sliding sleeve, the guide arm that slides encircles and is provided with the butt pressure spring, butt pressure spring both ends respectively one-to-one butt in first sliding sleeve with the second sliding sleeve is close to the one end of cable conductor.

By adopting the technical scheme, the first sliding sleeve and the second sliding sleeve slide towards the direction close to each other to form a first supporting state, so that the abutting pressure spring generates compression deformation; when the cable conductor needs to be installed, the elastic potential energy stored by the butting pressure spring can drive the first sliding sleeve and the second sliding sleeve to automatically switch back to the second installation state to install and wear to install the cable conductor.

Optionally, a sliding abutting plate is fixedly arranged at one end of the sliding guide rod, which is far away from the second sliding sleeve, and a rotating cam which is rotatably arranged on the guide supporting back plate is arranged between the sliding abutting plate and the first sliding sleeve; the rotating cam is provided with a protruding portion and an outer circle portion, the protruding portion is abutted between the sliding abutting plate and the first sliding sleeve in the first supporting state, and the outer circle portion is abutted between the sliding abutting plate and the first sliding sleeve in the second mounting state.

Through adopting above-mentioned technical scheme, make and rotate cam protrusion butt between butt and the first sliding sleeve that slides, thereby make butt and the first sliding sleeve that slides towards the direction of keeping away from each other, first sliding sleeve slides towards the direction of being close to the cable conductor promptly, the butt that slides towards the direction of keeping away from the cable conductor slides, make the guide arm that slides move along with the butt that slides towards the direction of keeping away from the cable conductor of sliding, thereby it sets up to drive fixed the second sliding sleeve that sets up in the guide arm that slides towards the direction removal of being close to the cable conductor, then realize that first sliding sleeve and second sliding sleeve move towards the direction that is close to each other, finally realize the direction support to the cable conductor. When needing the installation cable conductor, the butt pressure spring drives first sliding sleeve and second sliding sleeve and resets towards the direction automatic sliding of keeping away from each other to the butt board that slides resets is slided in the drive, realizes that excircle portion is in the butt between butt board and the first sliding sleeve that slides.

Optionally, the rotating cam is fixedly provided with a handle.

Through adopting above-mentioned technical scheme, the setting of handle provides the position of exerting oneself, and the rotation direction of conveniently controlling the rotation cam makes it carry out the state and switches, has further made things convenient for the operation.

Optionally, the guide support back plate is provided with a clamping limiting part, and the clamping limiting part is clamped and limited under the first support state by the handle.

Through adopting above-mentioned technical scheme, the setting of joint locating part is convenient to carry on spacingly through the handle to the cam that rotates under the first support attitude to make the guide space can the stable support cable conductor.

Optionally, the guide sliding assembly includes a sliding guide rail fixedly disposed on the guide support back plate, and the first sliding sleeve includes a first sliding block slidably disposed on the sliding guide rail and a first shaft sleeve slidably disposed on the first sliding block in a clamping manner; the second sliding sleeve including slide set up in the second slider and the joint of guide rail that slides set up in the second shaft sleeve of second slider.

By adopting the technical scheme, when the diameter of the cable to be tested is larger than the diameter of the current guide space, only the first shaft sleeve and the second shaft sleeve with different sizes need to be correspondingly replaced, and the first sliding sleeve and the second sliding sleeve are clamped and arranged in a sliding manner, so that the first shaft sleeve and the second shaft sleeve are convenient to install and replace; simultaneously, the setting that slides of guide rail and first slider and second slider joint that slides to make first slider and second slider can stably slide.

Optionally, the clamping mechanism includes an installation support disposed on the rack back plate, a clamping wheel adjusting assembly disposed on the installation support, and a first connecting block and a second connecting block slidably disposed on the clamping wheel adjusting assembly, and the clamping wheel adjusting assembly can drive the first connecting block and the second connecting block to move toward or away from each other; the first connecting block rotates and is provided with a first clamping wheel, the second connecting block rotates and is provided with a second clamping wheel, the first clamping wheel and the second clamping wheel are used for jointly matching and clamping a cable, and a clamping space is formed between the first clamping wheel and the second clamping wheel.

Through adopting above-mentioned technical scheme, press from both sides wheel adjusting part and pass through first connecting block and second connecting block, drive first clamp wheel and second and press from both sides the wheel and move towards the direction that is close to each other or keeps away from to make first clamp wheel and second press from both sides the cable conductor of the not unidimensional cable conductor of wheel adaptation and cooperate the tight cable conductor of clamp jointly, improved product compatibility.

Optionally, the first clamping wheel and the second clamping wheel are both provided with an inner concave ring groove, and the first clamping wheel and the second clamping wheel form a holding space for clamping a cable through the inner concave ring groove.

Through adopting above-mentioned technical scheme, the setting of indent annular is further spacing to the cable conductor to improve the cable conductor and deviate from the centre gripping space in the bending repeatedly, influence the problem of test then.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the cable conductor is convenient to mount and dismount, and the testing efficiency is improved. The rotation cam cooperates the state in order to switch first sliding sleeve and second sliding sleeve jointly with the butt pressure spring, when the different cable conductor of needs test, removes the joint state of handle, can make first sliding sleeve and second sliding sleeve slide towards the direction of keeping away from each other through the butt pressure spring to vacate the space and made things convenient for the installation and the dismantlement of cable conductor.

2. Has higher test stability. The first clamping wheel and the second clamping wheel can slide towards the direction close to or away from each other to clamp cables of different sizes, and the arrangement of the concave ring grooves enables the cables not to be separated from the clamping space in the testing process, so that the bending test of the cables can be stably carried out; the cable is guided and supported by the guide space formed by the first shaft sleeve and the second shaft sleeve together, so that the test stability is further improved.

Drawings

FIG. 1 is an isometric view of the overall structure in an embodiment of the present application;

FIG. 2 is a right side view of the overall structure in an embodiment of the present application;

FIG. 3 depicts an isometric view of a clamping mechanism in an embodiment of the present application;

FIG. 4 is an isometric view of a guide mechanism in an embodiment of the present application.

Description of reference numerals:

100. a rack back plate; 200. a rocker arm mechanism; 210. a servo drive motor; 220. a rotating shaft; 230. a rocker arm base plate; 240. a first abutting plate; 250. a second abutting plate; 300. a clamping mechanism; 310. mounting a bracket; 320. a pinch wheel adjustment assembly; 321. a double-ended screw; 322. a hand wheel; 330. a first connection block; 340. a second connecting block; 350. a first pinch roller; 351. an inner concave ring groove; 360. a second pinch roller; 400. a guide mechanism; 410. a guide support back plate; 420. a first sliding sleeve; 421. a first slider; 422. a first bushing; 430. a second sliding sleeve; 431. a second slider; 432. a second shaft sleeve; 440. a guide sliding assembly; 441. a sliding guide rail; 442. a sliding guide rod; 443. abutting against the pressure spring; 444. a sliding abutting plate; 445. rotating the cam; 446. a handle; 447. clamping the limiting piece; 500. a testing mechanism; 510. and (5) a stress test block.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses cable bending test equipment of stable direction. Referring to fig. 1, a cable bending test apparatus with stable guiding includes a rack backboard 100, a rocker mechanism 200 disposed above the rack backboard 100 to drive a cable to swing left and right, a clamping mechanism 300 disposed below the rocker mechanism 200 and configured to clamp the cable, a guiding mechanism 400 configured to guide and support the cable, and a testing mechanism 500 disposed at the bottom of the rack backboard 100 to output cable bending performance test data.

Referring to fig. 1 and 2, the swing arm mechanism 200 includes a servo driving motor 210 fixed at the back of the rack back plate 100, a rotating shaft 220 penetrating the rack back plate 100 and coaxially connected to an output shaft of the servo driving motor 210, and a swing arm bottom plate 230 coaxially connected to the rotating shaft 220, wherein the rotating shaft 220 is coaxially fixed at the bottom of the swing arm bottom plate 230; the top end of the rocker base plate 230 is connected with a first abutting plate 240 through a screw, the bottom end of the rocker base plate 230 is connected with a second abutting plate 250 through a screw, the first abutting plate 240 and the second abutting plate 250 are in a groove shape, and the cable penetrates through the first abutting plate 240 and the second abutting plate 250 to be clamped on the rocker base plate 230, so that the cable is driven by the servo drive motor 210 to swing left and right in a reciprocating manner by taking the rotating shaft 220 as a rotating center.

Referring to fig. 1 and 3, the clamping mechanism 300 includes an installation bracket 310 fixedly disposed on the rack back plate 100, a clamping wheel adjusting assembly 320 disposed on the installation bracket 310, and a first connecting block 330 and a second connecting block 340 slidably disposed on the clamping wheel adjusting assembly 320, the first connecting block 330 is rotatably disposed with a first clamping wheel 350, the second connecting block 340 is rotatably disposed with a second clamping wheel 360, the first clamping wheel 350 and the second clamping wheel 360 are symmetrically disposed with respect to a cable as a center, and the clamping wheel adjusting assembly 320 can drive the first connecting block 330 and the second connecting block 340 to move in a direction approaching or separating from each other, so as to drive the first clamping wheel 350 and the second clamping wheel 360 to move in a direction approaching or separating from each other, thereby clamping cables of different diameters, and improving product compatibility of the whole device. First clamp wheel 350 and second press from both sides wheel 360 and all are provided with indent annular 351, and first clamp wheel 350 presss from both sides wheel 360 and is formed with the space of holding tightly that is used for pressing from both sides tight cable conductor through indent annular 351 to it is spacing in order to prevent cable conductor skew and break away from the centre gripping space in the bending repeatedly to the cable conductor, influences the problem of efficiency of software testing and precision then.

Referring to fig. 3, it is further illustrated that the pinch roller adjusting assembly 320 may be composed of various structures, such as a double-threaded screw mechanism, a slider guide rail mechanism, and an air cylinder driving mechanism, in the embodiment of the present application, the mounting bracket 310 is integrally "Jiong" in a top view, the pinch roller adjusting assembly 320 is preferably a double-threaded screw 321 which rotates and penetrates through the mounting bracket 310, and a hand wheel 322 which is fixedly disposed at a right end of the double-threaded screw 321, and the hand wheel 322 provides a force location for rotating the double-threaded screw 321; double-threaded screw 321 is provided with the first screw thread section that is located the left and is located the second screw thread section on right side, and first connecting block 330 screw-thread fit sets up in first screw thread section, and second connecting block 340 screw-thread fit sets up in the second screw thread section to drive first connecting block 330 and second connecting block 340 towards the direction removal that is close to each other or keeps away from through rotating double-threaded screw 321, make then that first clamp wheel 350 and second clamp wheel 360 can adapt the not unidimensional cable conductor and press from both sides tightly to it.

Referring to fig. 1 and 4, the guide mechanism 400 includes a guide support back plate 410 fixedly disposed on the mounting bracket 310, a first sliding sleeve 420 and a second sliding sleeve 430 slidably disposed on the guide support back plate 410, and a guide sliding assembly 440 for driving the first sliding sleeve 420 and the second sliding sleeve 430 to slide toward or away from each other, wherein the first sliding sleeve 420 and the second sliding sleeve 430 together form a guide space for guiding and supporting the cable, and the guide space is located vertically below the clamping space; the guide sliding assembly 440 drives the first sliding sleeve 420 and the second sliding sleeve 430 to slide in a mutually approaching direction to form a first support state for guiding and supporting the cable; the guiding sliding assembly 440 drives the first sliding sleeve 420 and the second sliding sleeve 430 to slide in a direction away from each other to form a second installation state for installing the cable. In the second installation state, the first sliding sleeve 420 and the second sliding sleeve 430 are in a mutually-away state, so that a space is vacated for conveniently penetrating and installing cables.

Referring to fig. 1 and 2, a sliding guide rail 441 is fixedly arranged on the guide support back plate 410, the sliding guide rail 441 is horizontally provided with a first dovetail groove, and the first dovetail groove is clamped with a first slider 421 and a second slider 431, so that the first slider 421 and the second slider 431 stably slide in the first dovetail groove; the first sliding block 421 is fixedly provided with a first shaft sleeve 422, the second sliding block 431 is fixedly provided with a second shaft sleeve 432, the first shaft sleeve 422 and the second shaft sleeve 432 jointly form a guide space to guide and support a cable, so that the cable is guided and supported, when the diameter of the cable to be tested is larger than the diameter of the current guide space, the first shaft sleeve 422 and the second shaft sleeve 432 in different sizes are correspondingly replaced, and the product compatibility is further improved. Referring to fig. 4, a second dovetail groove is also formed at one end of the first slider 421 close to the cable, the first shaft sleeve 422 is slidably disposed in the first slider 421 corresponding to the second dovetail groove, and the second slider 431 is similar to the first slider 421 in structure and symmetrical in position, so that the first shaft sleeve 422 and the second shaft sleeve 432 can be conveniently mounted and dismounted.

Referring to fig. 1 and 4, the guiding sliding assembly 440 is provided with a sliding guide rod 442 passing through and sliding on the first sliding sleeve 420 and fixed on the second sliding sleeve 430, the sliding guide rod 442 is provided with an abutting pressure spring 443 in a surrounding manner, and two ends of the abutting pressure spring 443 respectively abut against one end of the first sliding sleeve 420 and one end of the second sliding sleeve 430 close to the cable, so as to drive the first sliding sleeve 420 and the second sliding sleeve 430 to automatically reset and switch back to the second installation state for cable installation and passing through. The left end of the sliding guide rod 442 is fixedly connected with a sliding abutting plate 444, and it is further described that, in the embodiment of the present application, the sliding guide rod 442 is provided with two vertically symmetrical components, so that the sliding abutting plate 444 can stably slide.

Referring to fig. 1 and 4, a rotating cam 445 is provided between the sliding abutting plate 444 and the first slider 421, the rotating cam 445 is provided with a protrusion portion and an outer circular portion, the protrusion portion abuts between the sliding abutting plate 444 and the first slider 421 in the first supporting state, and the outer circular portion abuts between the sliding abutting plate 444 and the first slider 421 in the second mounting state; the rotating cam 445 is rotatably disposed on the guide support back plate 410 and integrally formed with a handle 446, so as to provide a force application position for conveniently controlling the rotation of the rotating cam 445, and it is further described that in the embodiment of the present application, the handle 446 is integrally formed at the back of the rotating cam 445, and the left view of the sliding abutting plate 444 is integrally shaped like "Jiong" so as to utilize the space for rotating the handle 446 below the sliding abutting plate 444. The guide support backplate 410 is further provided with a clamping limiting member 447, and the clamping limiting member 447 is clamped with the limiting handle 446 in the first support state.

Referring to fig. 1 and 4, in the embodiment of the present application, the guide mechanism 400 is implemented by the following principle: the handle 446 is rotated downwards to drive the rotating cam 445 to enable the protrusion portion of the rotating cam 445 to abut against between the sliding abutting plate 444 and the first sliding block 421, at this time, the sliding abutting plate 444 and the first sliding block 421 slide towards the direction away from each other, namely, the sliding abutting plate 444 slides leftwards, the first sliding block 421 slides rightwards, so that the sliding abutting plate 444 drives the second sliding block 431 to move leftwards through the sliding guide rod 442, and finally the cable is stably guided in the guide space, at this time, the abutting pressure spring 443 is in a compressed state, the clamping limiting piece 447 is clamped on the handle 446 to limit the rotating cam 445, and the state is a first support state of the guide mechanism 400; then, remove the joint state of handle 446, thereby the automatic resilience of butt pressure spring 443 resets and drives first slider 421 and second slider 431 and slide towards the direction of keeping away from each other, and first slider 421 moves to the left promptly, and second slider 431 moves to the right, thereby vacate the space and conveniently wear to establish and install the cable conductor, and second slider 431 moves to the right the accessible and slides guide arm 442 and drive the butt joint board 444 that slides and slide to reset, thereby make the outer circle portion butt of rotation cam 445 between the butt joint board 444 and first slider 421 that slides, this state is the second installation state of guiding mechanism 400.

Referring to fig. 1, the testing mechanism 500 is provided with a stress testing block 510 suspended at the bottom end of the cable passing through the guide space and a data receiving interface disposed outside the rack back plate 100. The cable penetrates through a holding space formed by the first clamping wheel 350 and the second clamping wheel 360 from the rocker arm bottom plate 230 and is clamped, then penetrates through a guide space for guiding and supporting, finally, the stress testing block 510 is hung to conduct bending testing, a data receiving interface receives and processes bending testing data, and when the rocker arm bottom plate 230 is driven by the servo driving motor 210 to swing leftwards by taking the rotating shaft 220 as a rotating center, the cable is bent and deformed leftwards under the action of the first clamping wheel 350; similarly, when the rocker arm bottom plate 230 swings right with the rotation shaft 220 as the rotation center, the cable bends and deforms right under the action of the second clamping wheel 360, and the cable is clamped tightly by the first clamping wheel 350 and the second clamping wheel 360, so that the first clamping wheel 350 and the second clamping wheel 360 rotate in opposite directions or opposite directions along with the swing of the rocker arm bottom plate 230 to progressively or recycle the cable, and then the stress testing block 510 reciprocates up and down along the guide space formed by the first sliding sleeve 420 and the second sliding sleeve 430.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereby. Wherein like parts are designated by like reference numerals. It should be noted that as used in the foregoing description, the terms "front," "back," "left," "right," "upper" and "lower" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component. Therefore, the method comprises the following steps: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A stably oriented cable bend testing apparatus, comprising:

a rack backplane (100);

the rocker mechanism (200) is arranged above the rack backboard (100) and used for driving the cable to repeatedly swing left and right;

the clamping mechanism (300) is arranged on the rack back plate (100) and positioned below the rocker arm mechanism (200), and the clamping mechanism (300) is provided with a clamping space for clamping a cable;

the guide mechanism (400), the guide mechanism (400) is used for guiding and supporting the cable conductor;

the testing mechanism (500) is arranged at the bottom of the rack back plate (100) to output cable bending performance testing data, and the testing mechanism (500) comprises a stress testing block (510) which is positioned vertically under the clamping space and used for hanging and tensioning cables;

the guide mechanism (400) comprises a guide support back plate (410), a first sliding sleeve (420) and a second sliding sleeve (430) which are arranged on the guide support back plate (410) in a sliding manner, and a guide sliding assembly (440) for driving the first sliding sleeve (420) and the second sliding sleeve (430) to slide towards the direction of approaching to or separating from each other, wherein the first sliding sleeve (420) and the second sliding sleeve (430) jointly form a guide space for guiding and supporting a cable, and the guide space is positioned vertically under the clamping space; the guide sliding assembly (440) drives the first sliding sleeve (420) and the second sliding sleeve (430) to slide towards the mutually approaching direction to form a first support state for guiding and supporting the cable; the guide sliding assembly (440) drives the first sliding sleeve (420) and the second sliding sleeve (430) to slide towards the direction away from each other so as to form a second installation state for installing the cable in a penetrating mode.

2. The stably guided cable bend testing apparatus of claim 1,

the guide sliding assembly (440) is provided with a sliding guide rod (442) which penetrates through the first sliding sleeve (420) to slide and is fixed on the second sliding sleeve (430), the sliding guide rod (442) is provided with an abutting pressure spring (443) in a surrounding mode, and two ends of the abutting pressure spring (443) are respectively abutted to one end, close to the cable, of the first sliding sleeve (420) and one end, close to the cable, of the second sliding sleeve (430) in a one-to-one correspondence mode.

3. The stably guided cable bending test apparatus according to claim 2, wherein a sliding abutting plate (444) is fixedly arranged at one end of the sliding guide rod (442) far away from the second sliding sleeve (430), and a rotating cam (445) rotatably arranged on the guide support back plate (410) is arranged between the sliding abutting plate (444) and the first sliding sleeve (420); the rotating cam (445) is provided with a protrusion portion and an outer circle portion, the protrusion portion abuts between the sliding abutting plate (444) and the first sliding sleeve (420) in the first supporting state, and the outer circle portion abuts between the sliding abutting plate (444) and the first sliding sleeve (420) in the second mounting state.

4. The stably guided cable bending test apparatus according to claim 3, wherein the rotating cam (445) is fixedly provided with a handle (446).

5. The stably guided cable bending test apparatus according to claim 4, wherein the guide support backplane (410) is provided with a snap stop (447), and the snap stop (447) snaps and stops the handle (446) in the first support state.

6. The stably-guided cable bending test device according to claim 1, wherein the guide sliding assembly (440) comprises a sliding guide rail (441) fixedly arranged on the guide support back plate (410), and the first sliding sleeve (420) comprises a first sliding block (421) slidably arranged on the sliding guide rail (441) and a first shaft sleeve (422) slidably arranged on the first sliding block (421) in a clamping manner; the second sliding sleeve (430) comprises a second sliding block (431) arranged on the sliding guide rail (441) in a sliding mode and a second shaft sleeve (432) clamped on the second sliding block (431).

7. The stably-guided cable bending test device according to claim 1, wherein the clamping mechanism (300) comprises a mounting bracket (310) disposed on the rack back plate (100), a clamping wheel adjusting assembly (320) disposed on the mounting bracket (310), a first connecting block (330) and a second connecting block (340) slidably disposed on the clamping wheel adjusting assembly (320), and the clamping wheel adjusting assembly (320) can drive the first connecting block (330) and the second connecting block (340) to move toward or away from each other; first connecting block (330) rotate and are provided with first clamp wheel (350), second connecting block (340) rotate and are provided with second clamp wheel (360), first clamp wheel (350) with second clamp wheel (360) are used for cooperating jointly and press from both sides tight cable conductor, the centre gripping space form in first clamp wheel (350) with between second clamp wheel (360).

8. The stably guided cable bending test apparatus according to claim 7, wherein the first pinch wheel (350) and the second pinch wheel (360) are each provided with an inner concave ring groove (351), and the first pinch wheel (350) and the second pinch wheel (360) are formed with an enclasping space for clamping the cable wire through the inner concave ring groove (351).

Images