A flexible cable retention force testing device

Abstract

The utility model discloses a kind of soft cable holding force testing device, including workbench, the center position of the rear end of the upper surface of workbench is fixedly connected with fixed frame, the front end of the upper surface of fixed frame is fixedly connected with hydraulic rod, the bottom of hydraulic rod is fixedly connected with test pressure head.The utility model can promote pressing plate to move downward by rotating first threaded rod on first clamping mechanism and second clamping mechanism, the lower surface of pressing plate can cooperate with the upper surface of clamping seat to carry out the clamping limiting work of the both ends of soft cable at this time, while pressing plate and clamping seat are close, the plug rod on the upper surface of clamping seat can be inserted into the slot in the lower surface of pressing plate at this time, the plug rod presses the pressure sensor in slot now, and the pressure received by pressure sensor exceeds threshold value can control miniature air pump to start, so that the internal inflation of safety air bag can make clamping seat and pressing plate upper safety air bag stably adhere to the outer surface of soft cable line main body.

Description

Technical Field

[0001] This utility model relates to the field of flexible cable holding force testing technology, specifically a flexible cable holding force testing device. Background Technology

[0002] The flexible cable holding force tester is a specialized device used to test the strength and holding force of flexible cables. It primarily assesses the cable's resistance to pull-out by simulating external forces such as pulling and impact. The flexible cable holding force tester is widely used in industries such as wire and cable, electronics, and automotive manufacturing to ensure that products maintain stable electrical connections under external forces. It is a key testing tool for product quality control and safety certification.

[0003] A flexible cable holding force testing device disclosed in Chinese Patent Publication No. CN211696763U involves placing a pressure mounting shell inside one end of a vertical retainer. A guide groove is provided on one side of a limiting guide plate, and the other end of the vertical retainer extends to the inside of the guide groove. This allows the pressure mounting shell to move up and down without tilting, maintaining a vertical position. However, the use of this flexible cable holding force testing device has certain limitations. Prolonged testing, such as pulling on the flexible cable, can cause loosening at the cable fixing point, thus affecting the accuracy of subsequent tests and the overall holding force test effect. Utility Model Content

[0004] The purpose of this invention is to provide a flexible cable holding force testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flexible cable holding force testing device, comprising a workbench, a fixed frame fixedly connected to the center of the rear end of the upper surface of the workbench, a hydraulic rod fixedly connected to the front end of the upper surface of the fixed frame, a test pressure head fixedly connected to the bottom end of the hydraulic rod, a first clamping mechanism provided on the left side of the upper surface of the workbench, a moving mechanism provided on the right side inside the workbench, a second clamping mechanism provided at the top of the moving mechanism, a flexible cable body being mounted inside the first clamping mechanism and the second clamping mechanism, further comprising a first inflation mechanism and a second inflation mechanism for further reinforcing the flexible cable body inside the first clamping mechanism and the second clamping mechanism, and a toggle mechanism for intermittently pushing the flexible cable body to perform holding force testing.

[0006] Preferably, the first clamping mechanism includes a clamping seat fixedly connected to the left side of the upper surface of the worktable, a limiting rod fixedly connected to the rear end of the upper surface of the clamping seat, a first threaded rod rotatably connected to the front end of the upper surface of the clamping seat, and a pressure plate whose front end is threadedly connected to the first threaded rod is slidably connected to the outside of the limiting rod.

[0007] Preferably, the first inflation mechanism includes a rod fixedly connected to the front and rear ends of the upper surface of the clamping seat, and slots are provided at the front and rear ends of the lower surface of the pressure plate corresponding to the positions of the rods. A pressure sensor is installed at the top of the slot, a miniature air pump is fixedly connected to the center inside the upper surface of the pressure plate, an air inlet is provided at the top of the miniature air pump, and a safety airbag with its top communicating with the miniature air pump is fixedly connected to the center of the lower surface of the pressure plate.

[0008] Preferably, the second inflation mechanism has the same specifications as the first inflation mechanism, both of which are equipped with a micro air pump, an air inlet, and a safety airbag, and the micro air pump is activated to inflate the air via an electrical signal generated by a pressure sensor.

[0009] Preferably, the moving mechanism includes a servo motor fixedly connected to the right side of the worktable, and the output shaft end of the servo motor is equipped with a second threaded rod that rotates inside the worktable, and the external thread of the second threaded rod is connected to a threaded block.

[0010] Preferably, the second clamping mechanism has the same specifications as the first clamping mechanism, and both are equipped with a first inflation mechanism and a second inflation mechanism for securing the main body of the flexible cable.

[0011] Preferably, the actuating mechanism includes a pull rope fixed to the rear end of the test pressure head, a fixed arm fixed to one side of the front end of the fixed frame, a winding shaft fixed to the pull rope and rotatably connected to the front end inside the fixed arm, multiple sets of pull rope are wound on the winding shaft, a torsion spring fixed to the left side of the center of the left side of the winding shaft and fixed to the fixed arm, and an actuating block fixed to the center of the right side of the winding shaft.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This flexible cable holding force testing device has a first clamping mechanism and a second clamping mechanism set at the top of the workbench. By rotating the first threaded rod on the first clamping mechanism and the second clamping mechanism, the first threaded rod can push the pressure plate to move downward. At this time, the lower surface of the pressure plate can cooperate with the upper surface of the clamping seat to perform clamping and limiting work at both ends of the flexible cable. At the same time, as the pressure plate approaches the clamping seat, the insert rod on the upper surface of the clamping seat can be inserted into the slot on the lower surface of the pressure plate. At this time, the insert rod presses the pressure sensor in the slot. When the pressure sensor receives a pressure exceeding the threshold, it can control the micro air pump to start, thereby quickly inflating the inside of the safety airbag. This allows the safety airbag on the clamping seat and the pressure plate to be stably attached to the outer surface of the flexible cable body, completing the further reinforcement of the flexible cable body and effectively ensuring the stability and accuracy of subsequent tests on the flexible cable body.

[0014] 2. This type of flexible cable holding force testing device connects the test head to a take-up shaft inside the fixed arm via a pull rope on one side. Multiple pull ropes are wound around the take-up shaft. When the hydraulic rod lowers the test head, the pull ropes do not pull on the take-up shaft due to their length. When the hydraulic rod raises the test head, the pull ropes pull the take-up shaft to rotate and twist a torsion spring on one side. Simultaneously, the take-up shaft rotates a deflector block, causing it to repeatedly collide with the flexible cable body for testing. This improves the overall functionality and testing versatility of the flexible cable holding force testing device, further enhancing its effectiveness. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the right-side side view of the present invention;

[0018] Figure 4 This is a top view of the front end of the fixed arm of this utility model.

[0019] Figure 5 This is a schematic diagram of the right-side side view of the first clamping mechanism of this utility model.

[0020] In the diagram: 1. Workbench; 101. Fixing frame; 102. Hydraulic rod; 103. Test pressure head; 104. Pull rope; 105. Fixing arm; 2. First clamping mechanism; 201. Clamping seat; 202. Limiting rod; 203. First threaded rod; 204. Pressure plate; 205. Insert rod; 206. Slot; 207. Pressure sensor; 3. First inflation mechanism; 301. Miniature air pump; 302. Air inlet; 303. Safety airbag; 4. Second inflation mechanism; 5. Flexible cable body; 6. Moving mechanism; 601. Servo motor; 602. Second threaded rod; 603. Threaded block; 7. Second clamping mechanism; 8. Actuating mechanism; 801. Rewinding shaft; 802. Torsion spring; 9. Actuating block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5This utility model provides two technical solutions:

[0023] Example 1: A flexible cable holding force testing device includes a workbench 1. A fixed frame 101 is fixedly connected to the center of the rear end of the upper surface of the workbench 1. A hydraulic rod 102 is fixedly connected to the front end of the upper surface of the fixed frame 101. A test pressure head 103 is fixedly connected to the bottom end of the hydraulic rod 102. A first clamping mechanism 2 is provided on the left side of the upper surface of the workbench 1. A moving mechanism 6 is provided on the right side inside the workbench 1. A second clamping mechanism 7 is provided at the top of the moving mechanism 6. A flexible cable body 5 is mounted inside the first clamping mechanism 2 and the second clamping mechanism 7. The device also includes a first inflation mechanism 3 and a second inflation mechanism 4 for further reinforcing the flexible cable body 5 inside the first clamping mechanism 2 and the second clamping mechanism 7. The device also includes a tossing mechanism 8 for intermittently pushing the flexible cable body 5 to perform holding force testing. When the hydraulic rod 102 is activated, it can push the test pressure head 103 downward and perform tensile testing on the flexible cable body 5.

[0024] The first clamping mechanism 2 includes a clamping seat 201 fixedly connected to the left side of the upper surface of the workbench 1. A limit rod 202 is fixedly connected to the rear end of the upper surface of the clamping seat 201. A first threaded rod 203 is rotatably connected to the front end of the upper surface of the clamping seat 201. A pressure plate 204 with its front end threadedly connected to the first threaded rod 203 is slidably connected to the outside of the limit rod 202. The limit rod 202 can stably limit the pressure plate 204. The pressure plate 204 can move up and down on the first threaded rod 203 by rotating the first threaded rod 203. Thus, the pressure plate 204 and the clamping seat 201 can perform clamping and limiting work on the flexible cable.

[0025] The first inflation mechanism 3 includes insert rods 205 fixedly connected to the front and rear ends of the upper surface of the clamping seat 201. Slots 206 are provided at the front and rear ends of the lower surface of the pressure plate 204, corresponding to the positions of the insert rods 205. A pressure sensor 207 is installed at the top of the slot 206. A miniature air pump 301 is fixedly connected to the center of the upper surface of the pressure plate 204, with an air inlet 302 at its top. An airbag 303, whose top is connected to the miniature air pump 301, is fixedly connected to the center of the lower surface of the pressure plate 204. When the pressure plate 204 approaches the clamping seat 201, the insert rods 205 can be inserted into the slots 206. Internally, when the insertion rod 205 presses against the pressure sensor 207 in the slot 206, the pressure sensor 207 senses that the pressure exceeds the threshold and can transmit an electrical signal to the microcontroller, which then controls the micro air pump 301 in the clamping seat 201 and the pressure plate 204 to start, thereby inflating the airbag 303. The pressure sensor 207 sensing the pressure and controlling the micro air pump 301 to start is a conventional technical field in the prior art. At the same time, the specific installation method, circuit connection method and control method of the pressure sensor 207 and the micro air pump 301 are all conventional designs and will not be described in detail in this work.

[0026] The second inflation mechanism 4 is the same as the first inflation mechanism 3, both of which are equipped with a micro air pump 301, an air inlet 302, and a safety airbag 303, and the micro air pump 301 is activated to inflate by an electrical signal generated by a pressure sensor 207.

[0027] The moving mechanism 6 includes a servo motor 601 fixed to the right side inside the workbench 1. The output shaft end of the servo motor 601 is equipped with a second threaded rod 602 that rotates inside the workbench 1. The external thread of the second threaded rod 602 is connected to a threaded block 603. When the servo motor 601 is started, it can drive the second threaded rod 602 to move. At this time, the threaded block 603 on the second threaded rod 602 can drive the second clamping mechanism 7 to move, and make the second clamping mechanism 7 cooperate with the first clamping mechanism 2 to perform a pull test on the clamped soft cable.

[0028] The second clamping mechanism 7 has the same specifications as the first clamping mechanism 2, and both are equipped with a first inflation mechanism 3 and a second inflation mechanism 4 for securing the main body 5 of the flexible cable.

[0029] Example 2 differs from Example 1 mainly in that:

[0030] A flexible cable holding force testing device includes a toggle mechanism 8 comprising a pull rope 104 fixedly connected to the rear end of a test pressure head 103, a fixed arm 105 fixedly connected to one side of the front end of a fixed frame 101, a take-up shaft 801 rotatably connected to the front end inside the fixed arm 105 and fixedly connected to the pull rope 104 externally, and multiple sets of pull rope 104 wound on the take-up shaft 801. A torsion spring 802 fixedly connected to the left center of the take-up shaft 801 and fixedly connected to the fixed arm 105 on the left side, and a toggle block 9 fixedly connected to the center of the right center of the take-up shaft 801. When the test pressure head 103 moves downward, the length of the pull rope 104 will not pull the take-up shaft 801 to rotate. When the test head 103 continues to rotate upward, the pull rope 104 can pull the take-up shaft 801 to rotate. At this time, the take-up shaft 801 twists the torsion spring 802, which can drive the actuating block 9 on the other side to rotate, and cause the actuating block 9 to intermittently collide with the flexible cable body 5. When the test head 103 moves downward, due to the reaction force of the torsion spring 802 being twisted, the actuating block 9 can be driven to reset and rotate through the take-up shaft 801. At the same time, the actuating block 9 can intermittently collide with the flexible cable body 5 again. In addition, the contents not described in detail in this specification are all prior art known to those skilled in the art.

[0031] In this embodiment, during use: both ends of the flexible cable body 5 are respectively mounted on the top of the clamping seats 201 on the first clamping mechanism 2 and the second clamping mechanism 7. By rotating the first threaded rod 203 on the first clamping mechanism 2 and the second clamping mechanism 7, the first threaded rod 203 can drive the pressure plate 204 to move downwards, causing the pressure plate 204 to clamp the flexible cable body 5 in conjunction with the clamping seats 201. Simultaneously, the insertion rod 205 at the top of the clamping seat 201 can be inserted into the slot 206 on the pressure plate 204 as the pressure plate 204 approaches, pressing the pressure sensor 207 inside the slot 206. At this time, the pressure sensor 207 can... The microcontroller controls the clamping seat 201 and the micro air pump 301 inside the pressure plate 204 to start and inflate the safety airbag 303, so that the safety airbag 303 is pressed tightly against the outside of the soft cable body 5, thus completing the stable clamping of the soft cable body 5. At this time, the test pressure head 103 is started, which can drive the test pressure head 103 to move downward and perform a pull test on the soft cable body 5. At the same time, the servo motor 601 inside the workbench 1 is started, which can drive the second threaded rod 602 to rotate. At this time, the threaded block 603 on the second threaded rod 602 can drive the second clamping mechanism 7 to move, and the second clamping mechanism 7 can perform a lateral pull on the soft cable body 5.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A soft cable holding force testing device comprising a workbench (1), characterized in that: A fixed frame (101) is fixedly connected to the center of the rear end of the upper surface of the workbench (1). A hydraulic rod (102) is fixedly connected to the front end of the upper surface of the fixed frame (101). A test pressure head (103) is fixedly connected to the bottom end of the hydraulic rod (102). A first clamping mechanism (2) is provided on the left side of the upper surface of the workbench (1). A moving mechanism (6) is provided on the right side inside the workbench (1). A second clamping mechanism (7) is provided at the top of the moving mechanism (6). A soft cable body (5) is mounted inside the first clamping mechanism (2) and the second clamping mechanism (7). A first inflation mechanism (3) and a second inflation mechanism (4) are also included to further reinforce the soft cable body (5) inside the first clamping mechanism (2) and the second clamping mechanism (7). A toggle mechanism (8) is also included to intermittently push the soft cable body (5) to perform a holding force test.

2. The flexible cable holding force testing device according to claim 1, characterized in that: The first clamping mechanism (2) includes a clamping seat (201) fixedly connected to the left side of the upper surface of the worktable (1). A limit rod (202) is fixedly connected to the rear end of the upper surface of the clamping seat (201). A first threaded rod (203) is rotatably connected to the front end of the upper surface of the clamping seat (201). A pressure plate (204) with its front end threadedly connected to the first threaded rod (203) is slidably connected to the outside of the limit rod (202).

3. The flexible cable holding force testing device according to claim 2, characterized in that: The first inflation mechanism (3) includes a rod (205) fixedly connected to the front and rear ends of the upper surface of the clamping seat (201). The front and rear ends of the lower surface of the pressure plate (204) are provided with slots (206) corresponding to the positions of the rod (205). A pressure sensor (207) is installed at the top of the slot (206). A miniature air pump (301) is fixedly connected to the center of the upper surface of the pressure plate (204). An air inlet (302) is provided at the top of the miniature air pump (301). An airbag (303) whose top is connected to the miniature air pump (301) is fixedly connected to the center of the lower surface of the pressure plate (204).

4. The flexible cable holding force testing device according to claim 3, characterized in that: The second inflation mechanism (4) is the same as the first inflation mechanism (3), both of which are equipped with a micro air pump (301), an air inlet (302), and a safety airbag (303), and the micro air pump (301) is started to inflate by an electrical signal generated by a pressure sensor (207).

5. The flexible cable holding force testing device according to claim 1, characterized in that: The moving mechanism (6) includes a servo motor (601) fixed to the right side inside the worktable (1). The output shaft end of the servo motor (601) is equipped with a second threaded rod (602) that rotates inside the worktable (1). The external thread of the second threaded rod (602) is connected to a threaded block (603).

6. The flexible cable holding force testing device according to claim 5, characterized in that: The second clamping mechanism (7) has the same specifications as the first clamping mechanism (2), and both are equipped with a first inflation mechanism (3) and a second inflation mechanism (4) for fastening the main body (5) of the flexible cable.

7. The flexible cable holding force testing device according to claim 1, characterized in that: The actuating mechanism (8) includes a pull rope (104) fixed to the rear end of the test pressure head (103), a fixed arm (105) fixed to one side of the front end of the fixed frame (101), and a winding shaft (801) fixed to the pull rope (104) is rotatably connected to the front end inside the fixed arm (105). The pull rope (104) is wound in multiple sets on the winding shaft (801). A torsion spring (802) fixed to the left side of the winding shaft (801) and fixed to the fixed arm (105) is fixed to the center of the left side. An actuating block (9) is fixed to the center of the right side of the winding shaft (801).

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