Electric wire and cable bending test device

Abstract

The utility model discloses an electric wire and cable bending test device which comprises a bending test device, a bending rotating shaft is installed on one side of the outer surface of the bending test device, a plurality of electric wire and cable automatic fixing mechanisms are arranged in the bending rotating shaft, each electric wire and cable automatic fixing mechanism comprises a synchronous moving mechanism and two fixing plates, and the synchronous moving mechanisms are arranged on the two fixing plates. The two fixing plates can be synchronously driven to move inwards or outwards through the synchronous moving mechanism. Preferably, the synchronous moving mechanism comprises a stepping motor, an output shaft of the stepping motor is connected with a transmission rotating shaft through a coupler, and the two sides of the outer surface of the transmission rotating shaft are each fixedly sleeved with a small synchronous chain wheel. According to the utility model, wires and cables can be automatically fixed, so that the automation degree of equipment is improved, and a manual operation mode is provided for the structure, so that the situation that the wires and cables cannot be fixed when the stepping motor fails and cannot be used is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of testing, in particular to a wire and cable bending testing device. Background Art

[0002] The wire and cable bending test device is a device specially used to test the bending performance of wires and cables. By simulating the bending conditions in actual use, the device can detect whether the wires and cables will be damaged when bent to ensure that they can meet the requirements of actual use.

[0003] This bending test device has a poor bending effect and is not convenient for controlling the bending degree, which in turn affects the bending detection result; therefore, it does not meet the existing needs. In this regard, we propose a wire and cable bending test device. The patent number in the prior art is CN212539995U, and its name is a wire and cable bending test device. A cable clamping groove is provided on one side of the movable clamping plate, and the cable clamping groove is used to facilitate positioning of the wires and cables. Three cable positioning grooves are provided on the outer side of the bending wheel, and different wires and cables can be tested simultaneously, which is more convenient to use. By adjusting the nuts provided on the outer sides of the two ends of the guide connecting rod, the clamping effect of the movable clamping plate and the guide clamping frame can be adjusted through the support spring, which is more convenient to use and easy to disassemble and assemble, thereby solving the above problems.

[0004] However, when using this wire and cable bending test device, it is necessary to manually fix the top end of the wire and cable on the bending shaft, and the operation of the equipment is relatively cumbersome, which affects the operating efficiency of the equipment; therefore, it does not meet the existing needs. In this regard, we propose a wire and cable bending test device. Utility Model Content

[0005] The purpose of the utility model is to provide a wire and cable bending test device to solve the problems raised in the above background technology that when using this wire and cable bending test device, the top end of the wire and cable needs to be manually fixed on the bending shaft, and the operation of the equipment is relatively cumbersome, thereby affecting the operating efficiency of the equipment.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wire and cable bending test device, comprising a bending test device, a bending shaft is installed on one side of the outer surface of the bending test device, and a plurality of automatic wire and cable fixing mechanisms are arranged inside the bending shaft. The automatic wire and cable fixing mechanisms include a synchronous moving mechanism and two fixed plates, and the two fixed plates can be synchronously driven to move inward or outward by the synchronous moving mechanism.

[0007] Preferably, the synchronous movement mechanism comprises a stepper motor, the output shaft of the stepper motor is connected to a transmission shaft via a coupling, and a small synchronous sprocket is fixedly sleeved on both sides of the outer surface of the transmission shaft.

[0008] Preferably, a synchronous sprocket connected to the bending shaft via a roller bearing is provided on one side of the small synchronous sprocket, and the small synchronous sprocket and the synchronous sprocket are serially driven via a synchronous chain.

[0009] Preferably, one side of the outer surface of the synchronous sprocket is provided with an internal threaded through hole penetrating the synchronous sprocket, the interior of the internal threaded through hole is provided with a threaded rod matching its internal thread, and the two fixing plates are respectively fixed on the opposite surfaces of the two threaded rods.

[0010] Preferably, a guide rod is provided on both sides of the fixing plate, and a guide sleeve is fixedly provided on both sides of the outer surface of the fixing plate and is respectively sleeved on the outer surfaces of the two guide rods;

[0011] A manual rotating head located outside the bending shaft is provided on one side of the internal threaded through hole, a threaded rod through hole penetrating the manual rotating head is provided on the surface of the manual rotating head facing the threaded rod, and the diameter of the inner wall of the threaded rod through hole is larger than the diameter of the outer surface of the threaded rod, a connecting rod fixed to the outer surface of the manual rotating head is provided on both sides of the threaded rod through hole, and the surface of the connecting rod facing the synchronous sprocket is fixed to the synchronous sprocket.

[0012] Preferably, a circular cover plate is provided on one side of the stepper motor and is located on the outer surface of the bending shaft, and the bending shaft and the circular cover plate are fixed by screws.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model can automatically fix the top end of the wire and cable to the corresponding position on the equipment through the automatic fixing mechanism of the wire and cable, so that the fixing process of the wire and cable no longer needs manual operation, thereby improving the automation degree of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A top view of the internal structure at center A;

[0017] Figure 3 For this utility model Figure 2 A magnified view of the structure at point B.

[0018] In the figure: 1. Bending test device; 2. Bending shaft; 3. Stepper motor; 4. Transmission shaft; 5. Small synchronous sprocket; 6. Synchronous sprocket; 7. Synchronous chain; 8. Internal threaded through hole; 9. Threaded rod; 10. Threaded rod; 11. Guide rod; 12. Guide sleeve; 13. Manual rotating head; 14. Connecting rod; 15. Threaded rod through hole. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] The bending test device 1 (model ZLT-DW2), the stepper motor 3 (model 86BYG250H) and the guide rod 11 (model 304) mentioned in the present invention can all be purchased from the market or obtained through private customization.

[0021] See also Figures 1 to 3 The utility model provides an embodiment: a wire and cable bending test device, including a bending test device 1, a bending shaft 2 is installed on one side of the outer surface of the bending test device 1, and a plurality of wire and cable automatic fixing mechanisms are arranged inside the bending shaft 2. The wire and cable automatic fixing mechanism includes a synchronous moving mechanism and two fixed plates 10, and the synchronous moving mechanism can synchronously drive the two fixed plates 10 to move inward or outward.

[0022] Furthermore, the synchronous moving mechanism includes a stepper motor 3, the output shaft of the stepper motor 3 is connected to the transmission shaft 4 through a coupling, and a small synchronous sprocket 5 is fixedly sleeved on both sides of the outer surface of the transmission shaft 4; when in use, connect the power supply, insert the top end of the wire or cable between the two fixed plates 10 located inside the automatic fixing mechanism for the wire and cable, and then start the stepper motor 3. The stepper motor 3 can drive the transmission shaft 4 connected thereto and the small synchronous sprocket 5 fixedly sleeved on the outer surface of the transmission shaft 4 to rotate.

[0023] A synchronous sprocket 6 connected to the bending shaft 2 through a roller bearing is provided on one side of the small synchronous sprocket 5, and the small synchronous sprocket 5 and the synchronous sprocket 6 are driven in series through a synchronous chain 7; when the small synchronous sprocket 5 rotates, the synchronous sprocket 6 driven in series with it through the synchronous chain 7 will rotate synchronously therewith.

[0024] An internal threaded through hole 8 penetrating the synchronous sprocket 6 is provided on one side of the outer surface of the synchronous sprocket 6, a threaded rod 9 matching the internal thread of the internal threaded through hole 8 is provided inside, and two fixing plates 10 are respectively fixed on the opposite surfaces of the two threaded rods 9; a guide rod 11 is provided on both sides of the fixing plate 10, and a guide sleeve 12 respectively sleeved with the outer surfaces of the two guide rods 11 is fixed on both sides of the outer surface of the fixing plate 10;

[0025] A manual rotating head 13 located outside the bending shaft 2 is provided on one side of the internal threaded through hole 8, and a threaded rod through hole 15 penetrating the manual rotating head 13 is provided on the surface of the manual rotating head 13 facing the threaded rod 9, and the diameter of the inner wall of the threaded rod through hole 15 is larger than the diameter of the outer surface of the threaded rod 9, and a connecting rod 14 fixed to the outer surface of the manual rotating head 13 is provided on both sides of the threaded rod through hole 15, and the surface of the connecting rod 14 facing the synchronous sprocket 6 is fixed to the synchronous sprocket 6; through the guide rod 11 fixed to the outer surface of the fixing plate 10, the fixing plate 10 and the threaded rod 9 fixed to the fixing plate 10 themselves cannot rotate, and when the synchronous sprocket 6 rotates, it is connected to it through the internal threaded through hole The threaded rod 9 is connected to the inner threaded hole 8, but the threaded rod 9 which cannot rotate by itself will move parallelly inside the inner threaded through hole 8. When it is necessary to fix the wires and cables, the two threaded rods 9 and the fixing plates 10 fixed thereto are pushed inward synchronously. As the two fixing plates 10 move inward synchronously, the distance between the two fixing plates 10 will gradually decrease until the two fixing plates 10 are in contact with the wires or cables. The wires and cables can be fixed by the two fixing plates 10 at this time. When it is necessary to release the fixation, the driving shaft 4 connected thereto can be driven to rotate in the reverse direction by the stepping motor 3. The above technical solution can automatically fix the wires and cables, thereby improving the degree of automation of the equipment.

[0026] When it is necessary to test the fixed wires and cables, the bending test device 1 is started to drive the bending shaft 2 to rotate, and then the wires or cables are bent;

[0027] When the stepper motor 3 fails and cannot be used, the manual rotating head 13 can be manually rotated to drive the synchronous sprocket 6 connected to it through the connecting rod 14 to rotate, so as to adjust the position of the two fixed plates 10. The above technical solution provides a backup manual operation method for the fixed structure, so as to prevent the situation where the fixed structure cannot be used due to a failure of the stepper motor 3.

[0028] A circular cover plate is provided on one side of the stepper motor 3 and is located on the outer surface of the bending shaft 2, and the bending shaft 2 and the circular cover plate are fixed by screws; the circular cover plate can protect the stepper motor 3, and when the stepper motor 3 fails, it can be repaired by removing the circular cover plate.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A bending test device for electric wires and cables, comprising a bending test device (1), characterized in that: A bending shaft (2) is installed on one side of the outer surface of the bending test device (1), and a plurality of automatic wire and cable fixing mechanisms are arranged inside the bending shaft (2). The automatic wire and cable fixing mechanisms include a synchronous moving mechanism and two fixing plates (10), and the two fixing plates (10) can be synchronously driven to move inward or outward by the synchronous moving mechanism.

2. A wire and cable bending test device according to claim 1, characterized in that: The synchronous movement mechanism comprises a stepping motor (3), the output shaft of the stepping motor (3) is connected to a transmission shaft (4) via a coupling, and a small synchronous sprocket (5) is fixedly sleeved on both sides of the outer surface of the transmission shaft (4).

3. A wire and cable bending test device according to claim 2, characterized in that: A synchronous sprocket (6) connected to the bending shaft (2) via a roller bearing is provided on one side of the small synchronous sprocket (5), and the small synchronous sprocket (5) and the synchronous sprocket (6) are serially driven via a synchronous chain (7).

4. A wire and cable bending test device according to claim 3, characterized in that: An internal threaded through hole (8) penetrating the synchronous sprocket (6) is provided on one side of the outer surface of the synchronous sprocket (6), a threaded rod (9) matching the internal thread of the internal threaded through hole (8) is provided inside the internal threaded through hole (8), and the two fixing plates (10) are respectively fixed on the opposite surfaces of the two threaded rods (9).

5. A wire and cable bending test device according to claim 4, characterized in that: A guide rod (11) is provided on both sides of the fixing plate (10), and a guide sleeve (12) is fixedly provided on both sides of the outer surface of the fixing plate (10) and is respectively sleeved on the outer surfaces of the two guide rods (11); A manual rotating head (13) located outside the bending shaft (2) is provided on one side of the internal threaded through hole (8); a threaded rod through hole (15) penetrating the manual rotating head (13) is provided on the surface of the manual rotating head (13) facing the threaded rod (9); the diameter of the inner wall of the threaded rod through hole (15) is greater than the diameter of the outer surface of the threaded rod (9); a connecting rod (14) fixed to the outer surface of the manual rotating head (13) is provided on both sides of the threaded rod through hole (15); and the surface of the connecting rod (14) facing the synchronous sprocket (6) is fixed to the synchronous sprocket (6).

6. A wire and cable bending test device according to claim 2, characterized in that: A circular cover plate is provided on one side of the stepping motor (3) and is located on the outer surface of the bending shaft (2), and the bending shaft (2) and the circular cover plate are fixed by screws.

Images