High-frequency bending cable testing machine
By designing a high-result bending cable test machine, using clamping components and drivers to achieve equal environmental testing at both ends of the cable, the problems of insufficient test data and low accuracy of existing equipment are solved, and the test effect and accuracy are improved.
Patent Information
- Application Number
- CN202421657251.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-12
AI Technical Summary
The existing bending testing equipment can only be bent at one point in the cable during a single test, with fewer test data, less test accuracy, and poor test results.
A high-result bending cable testing machine is designed to test both ends of the cable under the same environment through two clamping components. The driver is used to drive the back and forth component movement, so that the two ends of the cable are reciprocated, and the instantaneous power outage phenomenon of the cable is measured through the instant breaking meter.
By increasing the acquisition of test data, the test accuracy is improved, the test effect is better, the performance of the insulating skin and core of the wire can be better tested, and the accuracy of the mechanical and electrical performance of the cable is improved.
Smart Images
Figure CN222913364U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of cable testing, and particularly relates to a high-frequency bending cable testing machine. Background Art
[0002] After the production of wire and cable is completed, a number of tests need to be carried out. Only the cables that pass the tests can be put on the market. One of the important test items is the bending test, which examines the fracture situation of the cable after being bent at a certain angle and number of times. The bending life is one of the important indicators of the cable. Now the performance requirements in the market are generally improved, and the requirements for testing are more diverse and complex, and the accuracy requirements for the bending test are also correspondingly increased. Therefore, it is often necessary to test through a cable bending testing machine, which is mainly used to evaluate the performance and durability of the cable when it is subjected to a bending load, and to determine the bending strength, durability and reliability of the cable by simulating the bending situation in actual use.
[0003] At present, the bending test equipment commonly used in the industry is simple, usually composed of a mechanical frame, a device for applying a load, and a corresponding data acquisition and control system. During a single test, it can only bend one place of the cable, with less test data, lower test accuracy and poor test effect. Content of the Utility Model
[0004] In order to solve the deficiencies of the existing technology, the utility model provides a high-frequency bending cable testing machine.
[0005] The technical effects to be achieved by the utility model are realized through the following technical aspects:
[0006] A high-frequency bending cable testing machine includes: a frame, an instantaneous power-off detector for giving an alarm when the power supply of the cable is instantaneously cut off during detection, two clamping assemblies, a reciprocating assembly for driving the two clamping assemblies to move towards each other or away from each other, a driver and two connecting rods;
[0007] Two sliding ports are linearly formed on the frame. The instantaneous power-off detector is installed on the frame. The driver is installed inside the frame, and the output end of the driver is connected to the reciprocating assembly. The output ends of the reciprocating assembly are respectively connected to the two connecting rods. Each connecting rod is slidably connected to a sliding port and protrudes out of the sliding port;
[0008] Each of the clamping assemblies includes an upper clamping plate and a lower clamping plate that are detachably connected. The upper clamping plate or the lower clamping plate is rotatably connected to the corresponding connecting rod and is relatively stationary with respect to the corresponding connecting rod when reaching a corresponding angle. The upper clamping plate is provided with an upper hole, and the lower clamping plate is provided with a lower hole. When the upper clamping plate and the lower clamping plate are connected, the upper hole and the lower hole are arranged opposite to each other and are brought together to form a clamping hole for clamping one end of the cable.
[0009] In some embodiments, the driver is provided as a motor. The reciprocating assembly includes a gear and two racks. The output end of the motor is connected to the gear. The two sides of the gear are respectively in transmission connection with the corresponding racks on the corresponding sides, and each rack is connected to a connecting rod.
[0010] In some embodiments, the clamping assembly further includes a plurality of bolts. The upper clamping plate and the lower clamping plate are respectively provided with a plurality of screw holes, and the bolts are movably inserted through the screw holes.
[0011] In some embodiments, the clamping hole is provided with at least two.
[0012] In some embodiments, every five of the clamping holes are arranged adjacent to each other in sequence to form a clamping group. There are two clamping groups, and the two clamping groups are arranged at intervals.
[0013] In some embodiments, the cross-sectional shape of the clamping hole is set as a circle, and the diameter of the clamping hole is set as 10 mm.
[0014] In some embodiments, upper limit members are provided on both sides of the upper clamping plate, and lower limit members that cooperate with the upper limit members are provided on both sides of the lower clamping plate. The upper limit members and the lower limit members are movably connected to limit the position between the upper clamping plate and the lower clamping plate.
[0015] In some embodiments, the upper limit member is provided as a limit protrusion, and the lower limit member is provided as a limit groove. The limit protrusion is movably inserted into the limit groove.
[0016] In some embodiments, the cross-sectional shape of the limit protrusion is set as a triangle, a rhombus or a T shape.
[0017] In some embodiments, a guide groove is provided on the horizontal side wall of each sliding opening, and a guide block that cooperates with one of the guide grooves is provided on each connecting rod. When each connecting rod slides in the corresponding sliding opening, each guide block is slidably connected to one of the guide grooves.
[0018] In summary, the present utility model has at least the following advantages:
[0019] A high-frequency bending cable testing machine provided by the present utility model, when conducting a test, separates the upper clamping plate and the lower clamping plate, places the cables in the lower holes on the two lower clamping plates respectively, and connects the two upper clamping plates and the corresponding lower clamping plates, so that the two ends of the cable are respectively placed in the two clamping holes. Then, by adjusting the clamping assembly, the two ends of the cable are adjusted to the corresponding angles. After the adjustment is completed, the driver drives the reciprocating assembly to move. The reciprocating assembly drives the two connecting rods to slide on the corresponding sliding ports, thereby driving the two ends of the cable to reciprocate. At this time, the momentary break meter can measure whether there is a phenomenon of momentary power-off of the cable. If the set number of times is reached and the momentary break meter does not alarm and the visual appearance is not damaged, it is qualified. In this way, through the testing of the two ends of the cable by the two clamping assemblies in the same environment, the purpose of increasing the test data in a single test is achieved, the test accuracy is improved, and the test effect is better. The test stability is better. Thus, the cracking degree of the insulating skin of the wire under a certain number of times and the breaking condition of the wire core can be tested, the quality of the wire and cable can be inspected, the high-frequency bending test problem of various cable requirements is facilitated, the accuracy of the mechanical performance and electrical performance of the cable is improved, and the risk caused by the instability of the cable itself is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a schematic diagram of the overall structure of the high-frequency bending cable testing machine according to an embodiment of the present utility model;
[0021] Figure 2 is a schematic diagram of a partial structure of the high-frequency bending cable testing machine according to an embodiment of the present utility model;
[0022] Figure 3 is a schematic diagram of the structure of the clamping assembly according to an embodiment of the present utility model.
[0023] Reference numerals in the figure:
[0024] 10. High-frequency bending cable testing machine; 100. Frame; 110. Sliding port; 200. Driver; 300. Reciprocating assembly; 310. Gear; 320. Rack; 400. Connecting rod; 500. Clamping assembly; 510. Upper clamping plate; 511. Upper limiting member; 520. Lower clamping plate; 530. Clamping hole; 600. Momentary break meter. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The described embodiments are some, but not all, of the embodiments of the present utility model.
[0026] Accordingly, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.
[0027] In the following embodiments, with reference to Figure 1 the coordinate axes, the direction indicated by the arrow of the X-axis is to the right, the direction indicated by the arrow of the Y-axis is to the front, and the direction indicated by the arrow of the Z-axis is upward.
[0028] Embodiment 1:
[0029] As Figures 1 to 3 shown, in this embodiment, a high-frequency pair-bending cable testing machine 10 includes: a frame 100, a momentary power-off instrument 600 for issuing an alarm when the power supply is cut off instantaneously upon detecting a cable, two clamping assemblies 500, a reciprocating assembly 300 for driving the two clamping assemblies 500 to move in a direction approaching or separating from each other, a driver 200, and two connecting rods 400; two sliding openings 110 are provided along a straight line on the frame 100, the momentary power-off instrument 600 is installed on the frame 100, the driver 200 is installed inside the frame 100, and the output end of the driver 200 is connected to the reciprocating assembly 300. The output ends of the reciprocating assembly 300 are respectively connected to the two connecting rods 400. Each connecting rod 400 is slidably connected to a sliding opening 110 and protrudes from the sliding opening 110; each clamping assembly 500 includes a detachable upper clamping plate 510 and a lower clamping plate 520. The upper clamping plate 510 or the lower clamping plate 520 is rotatably connected to the corresponding connecting rod 400 and is relatively stationary with the corresponding connecting rod 400 when reaching the corresponding angle. The upper clamping plate 510 is provided with an upper hole, and the lower clamping plate 520 is provided with a lower hole. When the upper clamping plate 510 and the lower clamping plate 520 are connected, the upper hole and the lower hole are arranged opposite to each other and are closed to form a clamping hole 530 for clamping one end of the cable.
[0030] Specifically, the two sliding openings 110 are arranged along the straight line direction of the X-axis, and the two are spaced apart from each other so that the two clamping assemblies 500 can slide left and right on the rack 100. The instantaneous break meter 600 is installed on the upper end surface of the rack 100 and is connected to the power supply of the tested cable. When the core wire breaks, the instantaneous break meter 600 can detect the instantaneous power failure of the cable and alarm. The working mode of the instantaneous break meter 600 is the existing technology known to those skilled in the art and can be implemented, so it is not described in detail in this embodiment. The driver 200 is installed below the rack 100, and the output end is connected to the reciprocating assembly 300, that is, when the driver 200 drives the reciprocating assembly 300 to operate, the reciprocating assembly 300 drives the two connecting rods 400 to move left and right, so as to drive the two clamping assemblies 500 to move left and right. The rear end of each connecting rod 400 is arranged in the frame 100, and the front end of each connecting rod 400 passes through a sliding opening 110 and is rotatably connected to the corresponding clamping assembly 500, so as to link the corresponding clamping assembly 500 to move left and right, and by adjusting the angle of a clamping assembly 500 on the corresponding connecting rod 400, the bending of one end of the cable at any angle is adjusted, simulating various actual use environments, so that the two clamping assemblies 500 can test the two ends of the same cable under the condition of ensuring the same operating conditions. The lower clamping plate 520 is rotatably connected to the connecting rod 400; in another embodiment, it can be rotatably connected to the connecting rod 400 through the upper clamping plate 510. There is a large friction between the lower clamping plate 520 and the connecting rod 400, and it needs to be rotated under a large force, and can remain stationary under the condition of no external force. It can be understood that the adjustable angle structure can also be set as other conventional angle adjustment mechanisms, such as a hole with a corresponding angle is opened on the connecting rod 400, and the lower clamping plate 520 is buckled or pinned when it reaches the corresponding angle. The upper hole is opened at the bottom of the upper clamping plate 510 and passes through the left and right sides of the upper clamping plate 510. The lower hole is opened at the top of the lower clamping plate 520 and passes through the left and right sides of the lower clamping plate 520. The clamping hole 530 is used to accommodate the clamping wire cable, and the clamping hole 530 is set to at least two.
[0031] It should be noted that during the test, the upper clamping plate 510 and the lower clamping plate 520 are separated, the cables are respectively placed in the lower holes on the two lower clamping plates 520, and the two upper clamping plates 510 are connected to the corresponding lower clamping plates 520, so that the two ends of the cable are respectively placed in the two clamping holes 530. Then, by adjusting the clamping assembly 500, the two ends of the cable are adjusted to the corresponding angles. After the adjustment is completed, the reciprocating assembly 300 is driven by the driver 200 to move. The reciprocating assembly 300 drives the two connecting rods 400 to slide on the corresponding sliding ports 110, thereby driving the two ends of the cable to reciprocate. At this time, the momentary interruption meter 600 can measure whether there is a phenomenon of momentary power failure of the cable. If the set number of times is reached and the momentary interruption meter 600 does not alarm and the visual appearance is not damaged, it is qualified. In this way, through the test of the two ends of the cable by the two clamping assemblies 500 in the same environment, the purpose of increasing the test data in a single test is achieved, the test accuracy is improved, and the test effect is better. The test stability is better. Thus, it is possible to test the cracking degree of the insulating skin of the wire at a certain number of times and the fracture condition of the wire core, inspect the quality of the wire and cable, facilitate the high-number bending test problem for various cable requirements, improve the accuracy of the mechanical performance and electrical performance of the cable, and reduce the risk of problems caused by the instability of the cable itself.
[0032] Embodiment 2
[0033] This embodiment is a further implementation manner of Embodiment 1. As Figure 1 and to Figure 2 shown, in this embodiment, the driver 200 is set as a motor. The reciprocating assembly 300 includes a gear 310 and two racks 320. The output end of the motor is connected to the gear 310. The two sides of the gear 310 are respectively in transmission connection with the corresponding side racks 320, and each rack 320 is connected to a connecting rod 400.
[0034] Specifically, the motor is installed below the frame 100, and the output end is connected to the gear 310, so that the motor and the gear 310 rotate synchronously. A rack 320 is respectively in transmission connection on the front and rear sides of the gear 310, so that the circular motion of the gear 310 can be converted into a linear motion. The two connecting rods 400 are respectively set as the first rod and the second rod, and the lengths of the first rod and the second rod are different, so that the distance between the front end faces of the two clamping assemblies 500 and the front side face of the frame 100 is equal. Refer to Figure 1 and Figure 2, the front side rack 320 is connected to the first rod, the length of the first rod is less than that of the second rod, and the rear side rack 320 is connected to the second rod. In this way, through the combined use of the gear 310 and the rack 320, the reciprocating movement of each clamping assembly 500 between two positions of the sliding port 110 can be realized, so that the simulated environment of the test is closer to reality and the accuracy of the test is increased. It can be understood that the reciprocating assembly 300 can also be set as other conventional components, such as a linkage mechanism and a cam mechanism, etc., as long as the reciprocating sliding of the two clamping assemblies 500 on the side wall of the corresponding sliding port 110 can be realized. Among them, the way of driving the gear 310 by the motor is the prior art known to those skilled in the art and can be realized, and will not be described in detail in this embodiment. By controlling the motor, the gear 310, the rack 320 and the sliding port 110, the reciprocating stroke of the reciprocating assembly 300 can be controlled within 500 mm, and the reciprocating accuracy can be controlled within 1 mm.
[0035] In some embodiments, the clamping assembly 500 further includes a plurality of bolts. The upper clamping plate 510 and the lower clamping plate 520 are respectively provided with a plurality of screw holes, and the bolts are movably inserted into the screw holes.
[0036] Specifically, three bolts are provided, and the screw holes are correspondingly arranged. By screwing the three bolts into the corresponding screw holes, the detachable connection between the upper clamping plate 510 and the lower clamping plate 520 is facilitated. It can be understood that the upper clamping plate 510 and the lower clamping plate 520 can also be detachably connected by means of pin connection or snap connection.
[0037] Such as Figures 1 to 3 shown, in some embodiments, every five clamping holes 530 are arranged adjacent to each other in sequence and form a clamping group. Two clamping groups are provided, and the two clamping groups are arranged at intervals.
[0038] Specifically, in the design of the 10-hole fixture, 10 cables can be tested simultaneously at one time. By setting every five clamping holes 530 as a clamping group, the middle bolt can be inserted at the interval between the two clamping groups, increasing the practicability.
[0039] In some embodiments, the cross-sectional shape of the clamping hole 530 is set as a circle, and the diameter of the clamping hole 530 is set as 10 mm.
[0040] Specifically, in this way, it is convenient to fit more cables.
[0041] Embodiment 3
[0042] This embodiment is a further implementation manner of Embodiment 1 or 2, such as Figure 1 and Figure 3As shown, in this embodiment, upper limit members 511 are provided on both sides of the upper clamping plate 510, and lower limit members that cooperate with the upper limit members 511 are provided on both sides of the lower clamping plate 520. The upper limit members 511 are movably connected to the lower limit members to limit the position between the upper clamping plate 510 and the lower clamping plate 520.
[0043] Specifically, through the limiting action of the upper limit members 511 and the lower limit members, when the upper clamping plate 510 and the lower clamping plate 520 are connected, the alignment is accurate, thus ensuring the accuracy of the test.
[0044] As Figure 3 shown, in some embodiments, the upper limit member 511 is provided as a limiting protrusion, and the lower limit member is provided as a limiting groove. The limiting protrusion is movably inserted into the limiting groove.
[0045] Specifically, the bottom surface of the upper limit member 511 is provided as a limiting protrusion, and the upper surface of the lower limit member is provided as a limiting groove. Through the cooperative limiting action of the limiting protrusion and the limiting groove, accurate alignment is ensured. Among them, the cross-sectional shape of the limiting protrusion is set as a triangle, a rhombus or a T shape.
[0046] In some embodiments, a guiding groove is formed on the horizontal side wall of each sliding opening 110, and a guiding block that cooperates with a guiding groove is provided on each connecting rod 400. When each connecting rod 400 slides in the corresponding sliding opening 110, each guiding block is slidably connected to a guiding groove.
[0047] Specifically, by forming a guiding groove on the lower side wall of the sliding opening 110 and providing a guiding block on the lower side of the connecting rod 400, the sliding of the connecting rod 400 is made more stable. The test structure is made more accurate.
[0048] In some embodiments, a buffer layer is provided on the vertical side wall of each sliding opening 110.
[0049] Specifically, buffer layers are provided on the left and right side walls of the sliding opening 110, so as to avoid the impact force between the connecting rod 400 and the side wall of the sliding opening 110 from affecting the test effect when the clamping assembly 500 moves back and forth. The material of the buffer layer is set as sponge.
[0050] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and the like shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0051] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.
[0052] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0053] In the present utility model, unless otherwise clearly specified and defined, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being above, over and on top of the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being below, under and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.
[0054] Although the description of the present utility model is made in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included within the spirit and scope of the appended claims.
Claims
1. A high frequency bending cable testing machine, characterized in that: include: A frame (100), a momentary power failure detector (600) for issuing an alarm when a momentary power failure of a cable is detected, two clamping assemblies (500), a reciprocating assembly (300) for driving the two clamping assemblies (500) to move toward or away from each other, a driver (200), and two connecting rods (400); The frame (100) is provided with two sliding openings (110) along a straight line, the instantaneous interruption instrument (600) is mounted on the frame (100), the driver (200) is mounted in the frame (100), and the output end of the driver (200) is connected to the reciprocating assembly (300), and the output end of the reciprocating assembly (300) is respectively connected to two connecting rods (400), and each connecting rod (400) is slidably connected to one of the sliding openings (110) and is arranged to protrude from the sliding openings (110); Each of the clamping assemblies (500) comprises an upper clamping plate (510) and a lower clamping plate (520) which are detachably connected. The upper clamping plate (510) or the lower clamping plate (520) is rotatably connected to the corresponding connecting rod (400), and is relatively stationary with the corresponding connecting rod (400) when reaching a corresponding angle. The upper clamping plate (510) is provided with an upper hole, and the lower clamping plate (520) is provided with a lower hole. When the upper clamping plate (510) and the lower clamping plate (520) are connected, the upper hole and the lower hole are arranged opposite to each other and are close together to form a clamping hole (530) for clamping one end of a cable.
2. The high frequency bending cable testing machine according to claim 1, characterized in that: The driver (200) is configured as a motor, and the reciprocating assembly (300) comprises a gear (310) and two racks (320), the output end of the motor is connected to the gear (310), the two sides of the gear (310) are respectively connected to the racks (320) on the corresponding sides, and each rack (320) is connected to a connecting rod (400).
3. The high frequency bending cable testing machine according to claim 1, characterized in that: The clamping assembly (500) further comprises a plurality of bolts. The upper clamping plate (510) and the lower clamping plate (520) are respectively provided with a plurality of screw holes, and the bolts are movably inserted into the screw holes.
4. The high frequency bending cable testing machine according to claim 1, characterized in that: The number of the clamping holes (530) is at least two.
5. The high frequency bending cable testing machine according to claim 1, characterized in that: Every five of the clamping holes (530) are arranged adjacent to each other in sequence to form a clamping group. The number of clamping groups is two, and the two clamping groups are arranged at intervals.
6. The high frequency bending cable testing machine according to claim 3, characterized in that: The cross-sectional shape of the clamping hole (530) is set to be circular, and the diameter of the clamping hole (530) is set to be 10 mm.
7. The high frequency bending cable testing machine according to claim 1, characterized in that: Upper limit members (511) are provided on both sides of the upper clamping plate (510), and lower limit members matching the upper limit members (511) are provided on both sides of the lower clamping plate (520). The upper limit members (511) are movably connected to the lower limit members to limit the position between the upper clamping plate (510) and the lower clamping plate (520).
8. The high frequency bending cable testing machine according to claim 7, characterized in that: The upper limit member (511) is configured as a limit protrusion, the lower limit member is configured as a limit groove, and the limit protrusion is movably inserted into the limit groove.
9. The high frequency bending cable testing machine according to claim 8, characterized in that: The cross-sectional shape of the limiting protrusion is set to be a triangle, a diamond or a T shape.
10. The high frequency bending cable testing machine according to claim 1, characterized in that: A guide groove is provided on the horizontal side wall of each sliding opening (110), and a guide block matching with one of the guide grooves is provided on each of the connecting rods (400). When each of the connecting rods (400) slides in the corresponding sliding opening (110), each of the guide blocks is slidably connected with one of the guide grooves.