A cable bending tester

Abstract

The utility model discloses a cable bending testing machine, including the box, the box outer wall is provided with a plurality of test units every interval, each test unit includes the first test subassembly and the second test subassembly of upside down setting, the first test subassembly includes the pivot that rotates to set on the box, the swing arm of its one end fixed in the swing arm of pivot outer surface and the fixture of movably setting on the swing arm, the second test subassembly includes the moving frame of along the vertical direction movement setting on the box and the two curvature rollers of symmetry setting at the top of moving frame. The utility model can adjust the fixture in advance on the position of swing arm, make the swing radius of swing arm change, can also be through adjusting the position of moving frame on the box outer wall, realizes the position adjustment of two curvature rollers relative pivot, is helpful to promote the accuracy of the detection result to different cable sample, satisfies the bending test requirement of different cable, and the scope of application is wide.

Description

Technical Field

[0001] This utility model relates to the field of cable performance testing technology, specifically a cable bending test machine. Background Technology

[0002] For cable and wire manufacturers and testers, electronic connector cables such as UDB, Type-C, and HDMI require repeated bending tests after production to detect fatigue performance and other defects. Existing testing methods use a turntable in cable bending performance testing equipment to drive a clamp, causing the front end of the cable under test to repeatedly bend around two curvature rollers. However, existing cable bending performance testing equipment is relatively rudimentary; the bending radius of the cable is generally fixed and cannot be flexibly adjusted. Different cable samples may have different bending radii, leading to unsatisfactory test results for different samples, failing to meet testing requirements, and limiting its applicability. Utility Model Content

[0003] The purpose of this invention is to provide a cable bending test machine that can flexibly adjust the bending radius of the cable, which helps to improve the accuracy of the test results for different cable samples, meets the bending test requirements of different cables, and has a wide range of applications, thereby solving the problem of the inflexible adjustment of the bending radius of the cable during the test mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A cable bending tester includes a chassis, on the outer wall of which a plurality of test units are spaced apart. Each test unit includes a first test component and a second test component arranged vertically. The first test component includes a rotating shaft rotatably mounted on the chassis, a swing arm with one end fixed to the outer circumference of the rotating shaft, and a clamp movably mounted on the swing arm. The second test component includes a movable frame movably mounted on the chassis in a vertical direction and two curvature rollers symmetrically mounted on the top of the movable frame.

[0006] Preferably, the first test component includes a dial, which is fixed to the outer wall of the chassis and sleeved on the outer periphery of the rotating shaft, and the dial is engraved with angle scales; the edge of the swing arm fixed to one end of the rotating shaft is provided with a pointer pointing to the angle scales of the dial.

[0007] Preferably, the first test component includes a connecting plate, a sliding plate, and a fastening bolt. The connecting plate is fixed to the side of the swing arm. The connecting plate has a groove along its length. The end face of the sliding plate has a convex rail that fits in the groove. The sliding plate is slidably mounted on the end face of the connecting plate via the convex rail. One end of the fastening bolt passes through the connecting plate and abuts against the convex rail.

[0008] Preferably, the clamp has a through-hole in the middle, and a gap is formed between the two curvature rollers for the cable to pass through. The through-hole and the gap are aligned vertically. An adjustment plate is formed at the top of the movable frame, and symmetrical elongated holes are formed on the adjustment plate.

[0009] Preferably, the clamp has two clamping blocks arranged opposite to each other and movable inside the clamping jaws, and each side of the clamp has a first adjusting screw connected to the clamping blocks.

[0010] Preferably, the opposing surfaces of the two clamping blocks are respectively provided with arc-shaped grooves for adapting cables.

[0011] Preferably, the second test assembly includes a base plate, a second adjusting screw, and a slider. The base plate is fixed to the outer wall of the chassis. There are two second adjusting screws, which are symmetrically and rotatably arranged on the base plate. There are two sliders, which are respectively movably arranged on the corresponding second adjusting screws. The bottom end of the moving frame is fixed on the two sliders.

[0012] Preferably, the movable frame is provided with a first limiting hole and a second limiting hole that are vertically opposite each other. The first limiting hole and the second limiting hole are aligned vertically with the gap between the two curvature rollers. The first limiting hole and the second limiting hole are both elongated, and the length direction of the first limiting hole is perpendicular to the length direction of the second limiting hole.

[0013] Preferably, the chassis is equipped with a transmission system for driving the rotating shaft to rotate, and the outer wall of the chassis is equipped with a control panel connected to the transmission system.

[0014] Preferably, the top of the chassis is provided with a tray containing weights of different sizes, and the tray is covered with an openable protective cover.

[0015] Compared with the prior art, the advantages of this utility model are: the position of the clamp on the swing arm can be adjusted in advance before the test, so that the swing radius of the swing arm can be changed; at the same time, the position of the two curvature rollers relative to the rotating shaft can be adjusted by adjusting the position of the moving frame on the outer wall of the chassis, thereby realizing the flexible adjustment of the bending radius of the cable, which helps to improve the accuracy of the test results of different cable samples, meet the bending test requirements of different cables, and has a wide range of applications. Attached Figure Description

[0016] Figure 1 This is a perspective view of a cable bending tester according to the present invention;

[0017] Figure 2 This is a front view of a cable bending tester according to the present invention;

[0018] Figure 3 for Figure 2Sectional view of the middle section BB;

[0019] Figure 4 for Figure 2 Sectional view of section AA;

[0020] Figure 5 This is a perspective view of the first and second test components of this utility model;

[0021] Figure 6 This is a schematic diagram showing the cable as a straight line before the start of the test for this utility model.

[0022] Figure 7 This is a schematic diagram showing the cable swinging to the left to a preset angle and bending during the test of this utility model;

[0023] Figure 8 This is a schematic diagram showing the cable swinging to the right to a preset angle and bending during the test of this utility model.

[0024] In the diagram: 1. Chassis; 2. First test assembly; 21. Rotating shaft; 22. Swing arm; 221. Pointer; 23. Fixture; 231. Clamp; 24. Dial; 25. Connecting plate; 26. Slide plate; 27. Fastening bolt; 28. Clamping block; 281. Arc groove; 29. ​​First adjusting screw; 3. Second test assembly; 31. Moving frame; 311. Adjusting plate; 312. First limiting hole; 313. Second limiting hole; 32. Curvature roller; 33. Base plate; 34. Second adjusting screw; 35. Slider; 4. Transmission system; 41. Motor; 42. Drive wheel; 43. Transmission belt; 44. Synchronous belt; 5. Control panel; 6. Tray; 7. Protective cover; 8. Cooling fan; 9. Weights; 10. Cable. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-2 A cable bending tester is disclosed for performing bending tests on cables 10. The machine includes a housing 1, on the outer wall of which a plurality of test units are spaced apart. Each test unit includes a first test component 2 and a second test component 3 arranged vertically. (See also...) Figure 5The first test assembly 2 includes a rotating shaft 21 rotatably mounted on the chassis 1, a swing arm 22 with one end fixed to the outer circumferential surface of the rotating shaft 21, and a clamp 23 movably mounted on the swing arm 22. The second test assembly 3 includes a movable frame 31 movably mounted on the chassis 1 in a vertical direction, and two curved rollers 32 symmetrically arranged at the top of the movable frame 31. (See also...) Figure 3 In this embodiment, a transmission system 4 for driving the rotating shaft 21 to rotate is provided inside the chassis 1, and a control panel 5 connected to the transmission system 4 is provided on the outer wall of the chassis 1. The control panel 5 is connected to control buttons and an alarm device.

[0027] Please see Figure 5 Before the test, the position of the clamp 23 on the swing arm 22 is adjusted in advance to change the swing radius of the swing arm 22. At the same time, the position of the moving frame 31 on the outer wall of the chassis 1 can be adjusted to adjust the position of the two curvature rollers 32 relative to the rotating shaft 21, thereby realizing the flexible adjustment of the bending radius of the cable 10. This helps to improve the accuracy of the test results of different cable 10 samples, meet the bending test requirements of different cables 10, and has a wide range of applications.

[0028] Please see Figure 5 The clamp 23 has a through-hole 231 in the middle, and a gap for the cable 10 to pass through is formed between the two curvature rollers 32. The clamp 231 and the gap are aligned vertically. An adjustment plate 311 is formed at the top of the movable frame 31. The adjustment plate 311 has symmetrical elongated holes, and the two curvature rollers 32 are respectively installed in the corresponding elongated holes. By adjusting the position of the curvature rollers 32 in the elongated holes, the distance between the two curvature rollers 32 can be adjusted to accommodate cables 10 of different specifications.

[0029] Please see Figure 6 During the test, the upper end of cable 10 is fixed to clamp 23, and the lower end of cable 10 passes through two curvature rollers 32 and is connected to a weight 9. At this time, cable 10 is in a straight line. Please refer to [link / reference]. Figure 7-8 Then, the transmission system 4 drives the rotating shaft 21 to rotate, and the swing arm 22 drives the cable 10 to swing to the left or right to a preset angle, so that the cable 10 is wrapped around the surface of one of the curvature rollers 32. At this time, the cable 10 is bent. During this process, the angle and number of swings of the swing arm 22 can be indirectly controlled by the control panel 5, that is, the angle and number of bends of the cable 10 can be controlled to meet different test requirements.

[0030] Please see Figure 1 and Figure 5The first test component 2 includes a dial 24, which is fixed to the outer wall of the chassis 1 and sleeved around the outer periphery of the rotating shaft 21. In this embodiment, the dial 24 is engraved with angle markings; the edge of the swing arm 22, which is fixed to one end of the rotating shaft 21, is provided with a pointer 221 pointing to the angle markings on the dial 24. During the test, the angle of rotation of the swing arm 22 can be seen by the pointer 221, thereby allowing adjustment of the angle of rotation of the swing arm 22 to improve the accuracy of the cable 10 bending test results.

[0031] The first test assembly 2 includes a connecting plate 25, a sliding plate 26, and a fastening bolt 27. The connecting plate 25 is fixed to the side of the swing arm 22. The connecting plate 25 has a groove along its length. The end face of the sliding plate 26 has a convex rail that fits into the groove. The sliding plate 26 is slidably mounted on the end face of the connecting plate 25 via the convex rail. One end of the fastening bolt 27 passes through the connecting plate 25 and abuts against the convex rail to restrict the movement of the sliding plate 26 relative to the connecting plate 25.

[0032] Please see Figure 5 Two clamping blocks 28 are movably and oppositely arranged within the clamping opening 231 of the clamp 23. First adjusting screws 29, connected to the clamping blocks 28, are respectively provided on both sides of the clamp 23. The position of the clamping blocks 28 within the clamping opening 231 can be adjusted via the first adjusting screws 29, allowing the two clamping blocks 28 to hold cables 10 of different specifications. Simultaneously, the clamping tightness of the clamping blocks 28 on the cables 10 can be adjusted to prevent the cables 10 from loosening during the test, thus preventing test failure. In this embodiment, the opposing surfaces of the two clamping blocks 28 are respectively provided with arc-shaped grooves 281 adapted to the cables 10. The arc-shaped grooves 281 can restrict the back-and-forth movement of the cables 10 between the two clamping blocks 28.

[0033] Please see Figure 5 The second test assembly 3 includes a base plate 33, a second adjusting screw 34, and sliders 35. The base plate 33 is fixed to the outer wall of the housing 1. There are two second adjusting screws 34, which are symmetrically and rotatably mounted on the base plate 33. There are two sliders 35, which are respectively movably mounted on the corresponding second adjusting screws 34. The bottom end of the moving frame 31 is fixed to the two sliders 35. By rotating the second adjusting screw 34, the sliders 35 move axially along the second adjusting screw 34, causing the moving frame 31 to move up and down, thereby realizing the position adjustment of the two curved rollers 32 at the top of the moving frame 31 in the height direction.

[0034] The movable frame 31 has a first limiting hole 312 and a second limiting hole 313 that are vertically opposite each other. The first limiting hole 312 and the second limiting hole 313 are aligned vertically with the gap between the two curvature rollers 32. In this embodiment, both the first limiting hole 312 and the second limiting hole 313 are elongated, and the length direction of the first limiting hole 312 is perpendicular to the length direction of the second limiting hole 313. During the test, the lower end of the cable 10 passes through the first limiting hole 312 and the second limiting hole 313 in sequence, and a suitable weight 9 is hung at the end of the cable 10 that passes through the second limiting hole 313. In this embodiment, the first limiting hole 312 is used to prevent the cable 10 from moving left and right, and the second limiting hole 313 is used to prevent the cable 10 from moving back and forth, so as to avoid excessive swinging of the cable 10 during the experiment.

[0035] Please see Figure 3 The transmission system 4 includes a motor 41, a drive pulley 42, a transmission belt 43, and a synchronous belt 44. The motor 41 is mounted on the inner wall of the housing 1. The output shaft of the motor 41 is connected to the drive pulley 42. One end of the rotating shaft 21 extends into the housing 1 relative to the swing arm 22, and a driven pulley is connected to the extended end. The transmission belt 43 is wound around the drive pulley 42 and the driven pulley respectively. A synchronous pulley is also mounted on the rotating shaft 21. Several synchronous belts 44 are provided, each wound around a synchronous pulley of an adjacent rotating shaft 21. During the test, the motor 41 drives the rotating shaft 21 of each test unit to rotate, and the rotating shaft 21 drives the cable 10 on the swing arm 22 to swing left and right within a preset angle range.

[0036] Please see Figure 4 In this embodiment, a tray 6 is provided on the top of the chassis 1, and weights 9 of different specifications are placed in the tray 6. A protective cover 7 that can be opened and closed is provided on the top of the tray 6. A cooling fan 8 is provided on the chassis wall to dissipate the heat inside the chassis 1 to the outside. Universal casters are provided at the four corners of the bottom of the chassis 1.

[0037] The working principle of this cable bending testing machine is as follows:

[0038] Before the test begins, the number of swings and the swing angle of cable 10 can be set via control panel 5 to meet different test requirements; please refer to Figure 5-6 During the test, the upper end of the cable 10 is fixed between the two clamping blocks 28 of the clamp 23, and the clamping blocks 28 are moved by rotating the first adjusting screw 29 to clamp the cable 10. The lower end of the cable 10 passes downward through the gap between the two curvature rollers 32, and through the first limiting hole 312 and the second limiting hole 313 on the moving frame 31, and a suitable weight 9 is hung at the end of the cable 10 that passes through the second limiting hole 313. Please refer to Figure 3 , Figure 5 and Figure 7Then, the motor 41 drives the rotating shaft 21 to rotate. The rotating shaft 21 first drives the cable 10 on the swing arm 22 to swing to the left within a preset angle range. At this time, the cable 10 is in a bent state, and the bent section of the cable 10 is wrapped around one of the curvature rollers 32. After swinging to the left by a predetermined angle, the swing arm 22 drives the cable 10 to rotate in the opposite direction to straighten it, completing one bending action. Please refer to Figure 3 , Figure 5 and Figure 8 Then, the motor 41 drives the rotating shaft 21 to continue rotating in the opposite direction. The rotating shaft 21 drives the cable 10 on the swing arm 22 to swing to the right within a preset angle range. At this time, the cable 10 is in a bent state, and the bent section of the cable 10 is wrapped around another curvature roller 32. After swinging to the right at a predetermined angle, the swing arm 22 drives the cable 10 to rotate in the forward direction to straighten it, and completes another bending action. This process is repeated until the number of tests is reached, or the sample is damaged, or the machine automatically alarms and stops.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cable bending test machine, comprising a chassis (1), wherein a plurality of test units are spaced apart on the outer wall of the chassis (1), characterized in that: Each of the test units includes a first test component (2) and a second test component (3) arranged vertically. The first test component (2) includes a rotating shaft (21) rotatably mounted on the chassis (1), a swing arm (22) with one end fixed to the outer circumferential surface of the rotating shaft (21), and a clamp (23) movably mounted on the swing arm (22). The second test component (3) includes a movable frame (31) movably mounted on the chassis (1) in the vertical direction, and two curved rollers (32) symmetrically mounted on the top of the movable frame (31).

2. The cable bending tester according to claim 1, characterized in that: The first test component (2) includes a dial (24), which is fixed to the outer wall of the chassis (1) and sleeved on the outer periphery of the rotating shaft (21). Angle scales are engraved on the dial (24). The swing arm (22) is fixed to one end of the rotating shaft (21) and has a pointer (221) pointing to the angle scale of the dial (24).

3. The cable bending test machine according to claim 1, characterized in that: The first test component (2) includes a connecting plate (25), a sliding plate (26), and a fastening bolt (27). The connecting plate (25) is fixed to the side of the swing arm (22). The connecting plate (25) has a groove along its length. The end face of the sliding plate (26) has a convex rail that fits in the groove. The sliding plate (26) is slidably mounted on the end face of the connecting plate (25) via the convex rail. One end of the fastening bolt (27) passes through the connecting plate (25) and abuts against the convex rail.

4. The cable bending test machine according to claim 1, characterized in that: The clamp (23) has a through-hole (231) in the middle, and a gap for the cable (10) to pass through is formed between the two curvature rollers (32). The clamp (231) is aligned with the gap. An adjustment plate (311) is formed at the top of the movable frame (31), and symmetrical elongated holes are formed on the adjustment plate (311).

5. The cable bending test machine according to claim 4, characterized in that: The clamp (23) has two clamping blocks (28) arranged opposite to each other and movable in the clamping mouth (231), and the clamp (23) has a first adjusting screw (29) connected to the clamping block (28) on both sides.

6. The cable bending test machine according to claim 5, characterized in that: The two clamping blocks (28) have arc-shaped grooves (281) for adapting to the cable (10) on their opposite surfaces.

7. The cable bending test machine according to claim 1, characterized in that: The second test assembly (3) includes a base plate (33), a second adjusting screw (34), and a slider (35). The base plate (33) is fixed to the outer wall of the housing (1). There are two second adjusting screws (34), which are symmetrically and rotatably arranged on the base plate (33). There are two sliders (35), which are movably arranged on the corresponding second adjusting screws (34). The bottom end of the moving frame (31) is fixed on the two sliders (35).

8. The cable bending test machine according to any one of claims 4-6, characterized in that: The movable frame (31) is provided with a first limiting hole (312) and a second limiting hole (313) that are vertically opposite each other. The gap between the first limiting hole (312), the second limiting hole (313) and the two curvature rollers (32) is vertically aligned. The first limiting hole (312) and the second limiting hole (313) are both elongated, and the length direction of the first limiting hole (312) is perpendicular to the length direction of the second limiting hole (313).

9. The cable bending test machine according to any one of claims 1-7, characterized in that: The chassis (1) is equipped with a transmission system (4) for driving the rotating shaft (21) to rotate, and a control panel (5) connected to the transmission system (4) is provided on the outer wall of the chassis (1).

10. The cable bending testing machine according to any one of claims 1-7, characterized in that: The top of the chassis (1) is provided with a tray (6), and different sizes of weights (9) are placed in the tray (6). The tray (6) is covered with an openable protective cover (7).

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