A bending resistance testing device for the connection part between terminal and wire

Abstract

The utility model relates to the technical field of wire testing equipment, and discloses a bending resistance testing device for the connection part between a terminal and a wire, the bending resistance testing device for the connection part between a terminal and a wire comprises a workbench, a rear plug-in board is fixedly installed at the rear end of the upper surface of the workbench, a wire body is arranged at the front end of the rear plug-in board, and a test assembly is arranged at the front end of the rear plug-in board. The bending resistance testing device for the connection part between a terminal and a wire can drive the wire body to rotate and twist 360° through the cooperation of the set fixed rod, bearing, gear ring, motor, gear, electric telescopic rod, fixed hoop and disassembly hoop, so as to simulate the twisting of the wire body during daily use, so as to test the durability of the wire body during use, and adjust the twisting amplitude of the wire body through the cooperation of the set electric telescopic rod, fixed hoop and disassembly hoop, so as to improve the test range of the test assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of wire material testing equipment, in particular to a bending resistance testing device for a terminal and a wire material connection portion. Background Art

[0002] As an accessory product of mobile phones, mobile phone charging cables can fully and thoroughly develop the potential functions of mobile phones. They are important components for mobile phone charging or data transmission. When the charging cable is in use, the end close to the terminal will often twist back and forth. For example, many charging cables will crack near the charging head or the wires inside will be exposed or even broken, and their lifespan is short. Therefore, the bending resistance of the wire needs to be tested during the production process of the charging cable.

[0003] According to a publicly disclosed data line anti-bending test simulation device (publication number: CN117309621A), in the above application, the third electric rotator is started to drive the extrusion frame to rotate, and the bending area of ​​the data line follows the rotation to twist the data line, simulating the bending resistance of the data line when the data line is twisted or entangled. The bending part is driven by the extrusion frame to rotate eccentrically, so that the sliding plate repeatedly slides a small distance on the connecting column, and the spring at the connection between the connecting column and the sliding plate is repeatedly stretched and restored, so that the torsion amplitude of the data line is increased, and the simulation is more realistic.

[0004] However, in actual use, the above-mentioned equipment can only simulate the use of data cables when they are twisted or entangled. In daily use, the end of the cable close to the terminal may swing violently or even swing and rotate. For example, a mobile phone may flip over, or the cable may be squeezed when it is plugged into a charger and put into a bag, causing violent swinging and twisting. As a result, the existing bending resistance test device has certain limitations and it is difficult to fully simulate more situations in the daily use of the cable. In view of this, we propose a bending resistance test device for the connection between the terminal and the wire. Utility Model Content

[0005] The utility model aims to provide a bending resistance testing device for the connection part between a terminal and a wire material, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bending resistance test device for the connection part between a terminal and a wire, comprising a workbench, a rear plug-in board is fixedly installed on the rear end of the upper surface of the workbench, a wire body is arranged at the front end of the rear plug-in board, and a test assembly is arranged at the front end of the rear plug-in board, and the test assembly comprises:

[0007] A fixing rod, the fixing rod is fixedly mounted on the front side surface of the rear plug-in board, a bearing is fixedly mounted on the front end of the fixing rod, a gear ring is fixedly mounted on the rear end of the inner ring of the bearing, and when the gear ring moves, the inner ring of the bearing can be driven to move synchronously;

[0008] A motor, the motor is fixedly mounted on the upper end of the front surface of the rear plug-in board, a gear is fixedly mounted on the front output end of the motor, and the gear can be driven to rotate when the motor is started;

[0009] An electric telescopic rod, wherein the electric telescopic rod is fixedly mounted on the bottom end of the inner wall of the bearing, a fixing hoop is fixedly mounted on the upper end of the electric telescopic rod, and when the electric telescopic rod is started, the fixing hoop can be driven to perform linear motion in the up and down directions, a disassembly hoop is arranged above the fixing hoop, and grooves are provided on the inner wall surfaces of the fixing hoop and the disassembly hoop, and a rotating roller is rotatably mounted inside the groove.

[0010] Preferably, the tooth surface of the ring gear meshes with the tooth surface of the gear, and when the gear rotates, the ring gear can be driven to rotate synchronously.

[0011] Preferably, the front end of the fixing rod is fixedly connected to the back side of the outer ring of the bearing, and the fixing rod can fix the outer ring of the bearing and allow the inner ring of the bearing to rotate.

[0012] Preferably, the fixing hoop and the disassembly hoop are fixedly connected by bolts, and the disassembly hoop can be disassembled after the bolts are removed, and the wire body is sleeved between the fixing hoop and the disassembly hoop.

[0013] Preferably, the outer surface of the rotating roller is in contact with the outer surface of the wire body, and the rotating roller can limit the position of the wire body.

[0014] Preferably, a fixing plate is fixedly installed on the front end of the upper surface of the workbench, an electric push rod is fixedly installed on the back of the fixing plate, and a front plug-in plate is fixedly installed on the rear end of the electric push rod. When the electric push rod is started, it can drive the front plug-in plate to perform linear motion in the front and rear directions.

[0015] Compared with the prior art, the utility model provides a bending resistance testing device for the connection part between the terminal and the wire, which has the following beneficial effects:

[0016] 1. The bending resistance test device for the connection part between the terminal and the wire can drive the wire body to rotate and twist 360° through the cooperation of the set fixed rod, bearing, gear ring, motor, gear, electric telescopic rod, fixed hoop and disassembly hoop, thereby simulating the twisting of the wire body during daily use to test the durability of the wire body during use, and adjusting the twisting amplitude of the wire body through the cooperation of the set electric telescopic rod, fixed hoop and disassembly hoop to improve the test range of the test assembly, and reducing the friction between the wire body and the fixed hoop and disassembly hoop during the test through the cooperation of the set groove and the rotating roller, thereby reducing the ineffective wear on the wire body and improving the accuracy of the test.

[0017] 2. The bending resistance test device for the connection part between the terminal and the wire can adjust the distance between the front plug-in board and the rear plug-in board through the cooperation of the set fixing plate, the electric push rod and the front plug-in board to adapt to the wire bodies of different specifications and lengths, thereby improving the adaptability of the test assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the right side of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the test assembly of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the utility model at A;

[0022] Figure 5 It is a structural schematic diagram of the fixing hoop of the utility model.

[0023] In the figure: 1, workbench; 2, rear plug-in board; 3, wire body; 401, fixed rod; 402, bearing; 403, gear ring; 404, motor; 405, gear; 406, electric telescopic rod; 407, fixed hoop; 408, disassembly hoop; 409, groove; 410, rotating roller; 501, fixed plate; 502, electric push rod; 503, front plug-in board. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 5As shown, the utility model provides a technical solution: a bending resistance testing device for the connection part of a terminal and a wire, comprising a workbench 1, a rear plug-in board 2 is fixedly installed on the rear end of the upper surface of the workbench 1, a wire body 3 is arranged at the front end of the rear plug-in board 2, and the front side surface of the rear plug-in board 2 and the back side of the front plug-in board 503 are both provided with sockets adapted to the front and rear ends of the wire body 3, the front and rear ends of the wire body 3 can be plugged into the corresponding sockets for limit fixing, and a test component is arranged at the front end of the rear plug-in board 2.

[0025] The test assembly includes: a fixed rod 401, a motor 404 and an electric telescopic rod 406, the fixed rod 401 is fixedly installed on the front surface of the rear plug-in board 2, the front end of the fixed rod 401 is fixedly installed with a bearing 402, the fixed rod 401 can limit and fix the bearing 402, the front end of the fixed rod 401 is fixedly connected to the back of the outer ring of the bearing 402, the rear end of the inner ring of the bearing 402 is fixedly installed with a ring gear 403, the motor 404 is fixedly installed on the upper end of the front surface of the rear plug-in board 2, the front output end of the motor 404 is fixedly installed with a gear 405, the tooth surface of the ring gear 403 is meshed with the tooth surface of the gear 405, when the motor 404 is started, it can drive the gear 405 to rotate and then drive the ring gear 403 to rotate, at this time the ring gear 403 can drive the inner ring of the bearing 402 to rotate.

[0026] The electric telescopic rod 406 is fixedly installed on the bottom end of the inner wall of the bearing 402, and a fixing hoop 407 is fixedly installed on the upper end of the electric telescopic rod 406. A disassembly hoop 408 is arranged above the fixing hoop 407. The fixing hoop 407 and the disassembly hoop 408 are fixedly connected by bolts. When the electric telescopic rod 406 is started, the fixing hoop 407 and the disassembly hoop 408 can be driven to perform linear motion in the up and down directions. The wire body 3 is sleeved between the fixing hoop 407 and the disassembly hoop 408. When the inner ring of the bearing 402 rotates, the wire body 3 can be moved by the electric telescopic rod 40 6. The cooperation of the fixing hoop 407 and the removal hoop 408 drives the wire body 3 to rotate and swing 360°, thereby simulating the twisting situation that occurs in the daily use of the wire body 3 to test the durability of the wire body 3 during use. During the test, the electric telescopic rod 406 can be started to drive the fixing hoop 407 and the removal hoop 408 to move linearly in the up and down directions, thereby changing the eccentricity of the fixing hoop 407 and the removal hoop 408 and the center of the bearing 402, and the test intensity when the wire body 3 rotates 360° can be changed.

[0027] In addition to the 360° rotation for durability testing, the electric telescopic rod 406 can also be started to drive the fixing hoop 407 and the removal hoop 408 to move back and forth in a straight line in the up and down directions, driving the wire body 3 to shake continuously, so as to test the swinging conditions during daily use and improve the adaptability of the durability test of the wire body 3.

[0028] The inner wall surfaces of the fixing hoop 407 and the removal hoop 408 are both provided with grooves 409, and a rotating roller 410 is rotatably installed inside the groove 409. The outer surface of the rotating roller 410 fits with the outer surface of the wire body 3. When the fixing hoop 407 and the removal hoop 408 rotate inside the bearing 402, the distance between the fixing hoop 407 and the removal hoop 408 and the limited end of the wire body 3 will change. At this time, the wire body 3 will move linearly in the left and right directions relative to the fixing hoop 407 and the removal hoop 408. At this time, the wire body 3 will contact and rub with the rotating roller 410 and drive the rotating roller 410 to rotate, thereby reducing the friction force of the wire body 3 during the movement of the wire body 3 and reducing the wear of the fixing hoop 407 and the removal hoop 408 on the wire body 3.

[0029] A fixing plate 501 is fixedly installed on the front end of the upper surface of the workbench 1, an electric push rod 502 is fixedly installed on the back of the fixing plate 501, and a front plug-in plate 503 is fixedly installed on the rear end of the electric push rod 502. When the electric push rod 502 is started, it can drive the front plug-in plate 503 to perform linear motion in the front and rear directions, so that the distance between the front plug-in plate 503 and the rear plug-in plate 2 can be adjusted according to the length of the wire body 3 to adapt to wire bodies 3 of different specifications and lengths, thereby improving the adaptability of the test assembly.

[0030] In the present invention, when in use, the front and rear ends of the wire body 3 are respectively plugged into the inside of the adapted sockets on the rear plug-in board 2 and the front plug-in board 503, and then the wire body 3 is placed on the top of the fixing hoop 407, and then the disassembly hoop 408 is fixed to the top of the fixing hoop 407 by bolts. At this time, the motor 405 can be started, and the gear 404, the ring gear 403, the bearing 402 and the electric telescopic rod 406 cooperate to drive the wire body 3 to continuously rotate 360° around the position on the wire body 3 close to the terminal side to simulate the wire body The twisting of the wire body 3 during daily use is used to test the durability of the wire body 3. During the test, the electric telescopic rod 406 can be started to adjust the eccentricity between the fixed hoop 407 and the disassembly hoop 408 and the center of the bearing 402, so as to adjust the twisting amplitude of the wire body 3 and improve the test range of the test assembly. After the rotation stops, only the electric telescopic rod 406 can be started to drive the fixed hoop 407 and the disassembly hoop 408 to continuously reciprocate and adjust in the up and down directions, so as to test the swing of the wire body 3 during daily use.

[0031] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A bending resistance testing device for a terminal and a wire connecting portion, comprising a workbench (1), a rear plug-in board (2) being fixedly mounted at the rear end of the upper surface of the workbench (1), and a wire body (3) being arranged at the front end of the rear plug-in board (2), characterized in that: A test component is arranged at the front end of the rear plug-in board (2), and the test component comprises: A fixing rod (401), the fixing rod (401) being fixedly mounted on the front side surface of the rear plug-in board (2), a bearing (402) being fixedly mounted on the front end of the fixing rod (401), and a gear ring (403) being fixedly mounted on the rear end of the inner ring of the bearing (402); A motor (404), the motor (404) being fixedly mounted on the upper end of the front surface of the rear plug-in board (2), and a gear (405) being fixedly mounted on the front output end of the motor (404); An electric telescopic rod (406) is fixedly mounted on the bottom end of the inner wall of the bearing (402); a fixing hoop (407) is fixedly mounted on the upper end of the electric telescopic rod (406); a disassembly hoop (408) is arranged above the fixing hoop (407); grooves (409) are provided on the inner wall surfaces of the fixing hoop (407) and the disassembly hoop (408); a rotating roller (410) is rotatably mounted inside the groove (409).

2. A bending resistance testing device for a terminal and a wire connection portion according to claim 1, characterized in that: The tooth surface of the gear ring (403) meshes with the tooth surface of the gear (405).

3. A bending resistance testing device for a terminal and a wire connection portion according to claim 1, characterized in that: The front end of the fixing rod (401) is fixedly connected to the back side of the outer ring of the bearing (402).

4. A bending resistance testing device for a terminal and a wire connection portion according to claim 1, characterized in that: The fixing hoop (407) and the disassembly hoop (408) are fixedly connected by bolts, and the wire body (3) is sleeved between the fixing hoop (407) and the disassembly hoop (408).

5. A bending resistance testing device for a terminal and a wire connection portion according to claim 1, characterized in that: The outer surface of the rotating roller (410) is in contact with the outer surface of the wire body (3).

6. A bending resistance testing device for a terminal and a wire connection portion according to claim 1, characterized in that: A fixing plate (501) is fixedly mounted on the front end of the upper surface of the workbench (1), an electric push rod (502) is fixedly mounted on the back of the fixing plate (501), and a front plug-in plate (503) is fixedly mounted on the rear end of the electric push rod (502).

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