Electric wire and cable tensile strength automatic detection machine

Abstract

The utility model relates to the technical field of wire and cable tensile strength detection, in particular to a wire and cable tensile strength automatic detection machine which comprises a base, moving grooves are formed in the left side and the right side of the base respectively, first mounting frames are arranged on the moving grooves, and the two first mounting frames are symmetrically arranged front and back. Clamping mechanisms are arranged on the two first mounting frames, and connecting plates are arranged on the lower portions of the inner walls of the first mounting frames; according to the utility model, the motor I is started to drive the two mounting racks I to move towards each other or relative to each other, so that the clamping mechanism can conveniently clamp wires and cables with different lengths; when the clamping mechanism is used, a first telescopic rod and a second telescopic rod are started, two gears rotate to drive clamping plates to move up and down along first teeth and second teeth, wires and cables are placed in clamping holes, the wires and cables of different sizes and shapes can be placed in the different clamping holes, and the clamping device does not need to be replaced in the later period.

Description

An automatic testing machine for the tensile strength of wires and cables Technical Field

[0001] This utility model relates to the field of wire and cable tensile strength testing technology, specifically to an automatic wire and cable tensile strength testing machine. Background Technology

[0002] Wires and cables are wire products used to transmit electrical energy, information, and realize the conversion of electromagnetic energy. In a broad sense, wires and cables are also simply referred to as cables. In a narrow sense, a cable refers to an insulated cable, which can be defined as: an assembly consisting of one or more insulated cores, and their respective possible covering layers, a total protective layer, and an outer sheath. Cables may also have additional uninsulated conductors. Wires and cables need to undergo physical performance testing before leaving the factory, including tests for tensile strength and resistance to torsion.

[0003] Chinese patent discloses an automatic cable tensile strength testing device (authorization announcement number CN 215574254 U). This patented technology can be equipped with a protective net, which can be placed on top during tensile testing to prevent the broken end of the cable from being thrown out and accidentally injuring the operator. A spring is installed under the crossbeam of the device, and the spring is connected to a support plate, which is connected to a limit switch. When the moving support plate moves upward to the limit switch, the power is cut off to prevent the moving support plate from hitting the crossbeam. In this process, the spring acts as a buffer. However, this device cannot clamp wires and cables of different sizes, and can only test one at a time, resulting in low testing efficiency.

[0004] Therefore, those skilled in the art have provided an automatic testing machine for the tensile strength of wires and cables to solve the problems mentioned in the background art. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this utility model provides an automatic testing machine for the tensile strength of wires and cables, including a base. The base has four supporting feet distributed around its bottom. Each supporting foot is equipped with an anti-slip pad. Moving grooves are formed on both the left and right sides of the base. A first mounting frame is provided on each moving groove, with two symmetrically arranged front and back. Each of the two first mounting frames is equipped with a clamping mechanism. A connecting plate is provided on the lower inner wall of the first mounting frame. A second mounting frame is installed between the two first mounting frames, with two symmetrically arranged limiting frames on its inner side. Limiting grooves are formed on both limiting frames.

[0006] Preferably, the clamping mechanism has two symmetrical clamping mechanisms; taking the front clamping mechanism as an example, the clamping mechanism includes clamping plates, and the clamping plates have two symmetrical clamping holes on the upper side; the two clamping plates are provided with clamping holes, and there are several clamping holes; the upper side of the upper clamping plate is provided with a left-right symmetrical telescopic rod one, and the top of the telescopic rod one is connected to the top inner wall of the mounting frame one; the bottom of the lower clamping plate is provided with a left-right symmetrical telescopic rod two; the bottom of the telescopic rod two is connected to the top of the mounting frame one; the inner walls of the left and right sides of the mounting frame one are provided with mounting plates, and gears are installed on the two mounting plates; Both gears have meshing teeth 1 on their left sides, which are installed on the top of the lower clamping plate; both gears have meshing teeth 2 on their right sides, which are installed on the bottom of the upper clamping plate; the bottom of the mounting bracket 1 has a moving block, which is embedded in a moving groove; a lead screw is installed in the moving groove on the right, and a limiting rod is installed in the moving groove on the left; a motor 1 is installed on the front side of the lead screw, which can drive the two mounting brackets 1 to move towards or relative to each other, thereby facilitating the clamping mechanism to clamp wires and cables of different lengths.

[0007] Preferably: A reciprocating lead screw is installed on the second mounting bracket, and a second motor is installed on the right side of the reciprocating lead screw; two symmetrical mounting blocks are installed on the reciprocating lead screw, and a connecting rod is installed at the bottom of each of the two mounting blocks, with a rotating rod between the mounting blocks and the connecting rods; the other end of each of the two connecting rods is equipped with a second mounting block, with a rotating rod between the second mounting block and the connecting rods; a fixing plate is installed at the bottom of each of the two mounting blocks, and the fixing plate is installed between two limit frames; sliders are provided on the left and right sides of the fixing plate, and the sliders are embedded in the limit grooves, and the sliders can move up and down within the limit grooves; a pull ring is provided at the bottom of the fixing plate; the wire and cable pass through the pull ring, and the wire and cable are placed on the clamping mechanism. The clamping plate clamps the wire and cable, and then the second motor is started, driving the reciprocating lead screw to rotate. The reciprocating lead screw drives the mounting blocks to move relative to or towards each other, thereby driving the fixing plate to move up and down on the limit frames, and thus driving the pull ring to move up and down. When the pull ring moves up and down, the tensile strength of the wire and cable is tested to determine the tensile capacity of the wire and cable.

[0008] The technical effects and advantages of this utility model are as follows:

[0009] 1. This utility model provides an automatic testing machine for the tensile strength of wires and cables. By starting motor one, two mounting brackets can be moved towards or relative to each other, thereby facilitating the clamping mechanism to clamp wires and cables of different lengths. When in use, by starting telescopic rod one and telescopic rod two, the two gears rotate, causing the clamping plates to move up and down along teeth one and teeth two, changing the distance between the two clamping plates, and placing the wires and cables into the clamping holes. Different clamping holes can accommodate wires and cables of different sizes and shapes, eliminating the need to replace the clamping device later, greatly improving the flexibility of the device.

[0010] 2. In this utility model, the wire and cable pass through the pull ring and are placed on the clamping mechanism. The clamping plate holds the wire and cable in place. Then, the second motor is started, which drives the reciprocating screw to rotate. The reciprocating screw drives the first mounting block to move relative to or towards each other, thereby driving the fixing plate to move up and down on the limit frame, and then driving the pull ring to move up and down. When the pull ring moves up and down, the tensile strength of the wire and cable is tested to determine the tensile capacity of the wire and cable. Attached Figure Description

[0011] Figure 1 is a schematic diagram of the overall structure of an automatic testing machine for the tensile strength of wires and cables provided in an embodiment of this application;

[0012] Figure 2 is an exploded view of an automatic tensile strength testing machine for wires and cables provided in an embodiment of this application.

[0013] Figure 3 is a front sectional view of an automatic tensile strength testing machine for wires and cables provided in an embodiment of this application;

[0014] Figure 4 is a schematic diagram of a portion of the structure of an automatic tensile strength testing machine for wires and cables provided in an embodiment of this application;

[0015] Figure 5 is a schematic diagram of a portion of an automatic tensile strength testing machine for wires and cables provided in an embodiment of this application.

[0016] In the diagram: 1. Base; 2. Support foot; 3. Motor 1; 31. Lead screw; 4. Mounting bracket 1; 41. Telescopic rod 1; 42. Clamping plate; 43. Clamping hole; 44. Moving block; 45. Telescopic rod 2; 46. Connecting plate; 5. Mounting plate; 51. Gear; 52. Gear 1; 53. Gear 2; 6. Mounting bracket 2; 61. Limiting bracket; 7. Motor 2; 71. Reciprocating lead screw; 72. Mounting block 1; 73. Connecting rod; 74. Mounting block 2; 75. Fixing plate; 8. Pull ring. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose. Embodiments

[0018] Please refer to Figures 1 to 5. This embodiment provides an automatic tensile strength testing machine for wires and cables, including a base 1. The base 1 has four support feet 2 at its bottom, distributed around the base 1. Each support foot 2 is equipped with an anti-slip pad, the number of which matches the number of support feet 2. The anti-slip pad increases the friction between the support feet 2 and the ground, preventing tipping and increasing safety and stability. The base 1 has moving grooves on both its left and right sides. Each moving groove has a mounting frame 4, with two symmetrically arranged mounting frames 4. Each mounting frame 4 has a clamping mechanism for clamping the wires and cables to be tested for tensile strength. A connecting plate 46 is located on the lower inner wall of each mounting frame 4. A second mounting frame 6 is installed between the two mounting frames 4. The second mounting frame 6 has two symmetrically arranged limiting frames 61 on its inner side. Each limiting frame 61 has a limiting groove.

[0019] The clamping mechanism has two symmetrical clamping mechanisms; taking the front clamping mechanism as an example, the clamping mechanism includes clamping plates 42, which have two symmetrical clamping plates on the upper side; the two clamping plates 42 are provided with clamping holes 43, and there are several clamping holes 43; the upper side of the upper clamping plate 42 is provided with left-right symmetrical telescopic rods 41, and the top of the telescopic rods 41 are connected to the top inner wall of the mounting frame 4; the bottom of the lower clamping plate 42 is provided with left-right symmetrical telescopic rods 45; the bottom of the telescopic rods 45 are connected to the top of the mounting frame 4; the inner walls of the left and right sides of the mounting frame 4 are provided with mounting plates 5, and gears 51 are installed on the two mounting plates 5; the two gears 51 are provided with gears 52. The left side of each gear 51 is fitted with a tooth 52, which is installed on the top of the lower clamping plate 42; the right side of each gear 51 is fitted with a tooth 53, which is installed on the bottom of the upper clamping plate 42. When the clamping mechanism is in use, by activating the telescopic rod 41 and the telescopic rod 45, the two gears 51 rotate, driving the clamping plate 42 to move up and down along the tooth 52 and the tooth 53, changing the distance between the two clamping plates 42, and putting the wires and cables into the clamping holes 43. Different clamping holes 43 can hold wires and cables of different sizes and shapes, and there is no need to replace the clamping device later, which greatly improves the flexibility of the device.

[0020] The bottom of the mounting bracket 4 is provided with a movable block 44, which is embedded in the movable groove; a lead screw 31 is provided in the movable groove to the right, and a limiting rod is provided in the movable groove to the left; a motor 3 is provided on the front side of the lead screw 31, and by starting the motor 3, the two mounting brackets 4 can be driven to move towards each other or relative to each other, thereby facilitating the clamping mechanism to clamp wires and cables of different lengths.

[0021] A reciprocating lead screw 71 is mounted on the second mounting bracket 6, and a second motor 7 is mounted on the right side of the reciprocating lead screw 71. Two symmetrical mounting blocks 72 are mounted on the reciprocating lead screw 71, and a connecting rod 73 is mounted at the bottom of each mounting block 72. A rotating rod is provided between the mounting block 72 and the connecting rod 73. A second mounting block 74 is mounted at the other end of each connecting rod 73, and a rotating rod is provided between the mounting block 74 and the connecting rod 73. A fixing plate 75 is mounted at the bottom of each mounting block 74, and the fixing plate 75 is installed between the two limiting brackets 61. The left side of the fixing plate 75... The right sides are equipped with sliders, which are embedded in the limiting grooves and can move up and down within the limiting grooves. The bottom of the fixing plate 75 is equipped with a pull ring 8. The wire and cable pass through the pull ring 8 and are placed on the clamping mechanism. The clamping plate 42 clamps the wire and cable. Then, the motor 7 is started, which drives the reciprocating screw 71 to rotate. The reciprocating screw 71 drives the mounting block 72 to move relative to or towards each other, thereby driving the fixing plate 75 to move up and down on the limiting frame 61, and thus driving the pull ring 8 to move up and down. When the pull ring 8 moves up and down, the tensile strength of the wire and cable is tested to determine the tensile strength of the wire and cable.

[0022] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. An automatic tensile strength testing machine for electric wires and cables, comprising a base (1), wherein the bottom of the base (1) is provided with support feet (2), and there are four support feet (2) distributed around the bottom of the base (1); the bottom of the support feet (2) is equipped with anti-slip pads; characterized in that, The base (1) has movable slots on both the left and right sides; the movable slots are provided with mounting brackets (4), and the mounting brackets (4) are provided with two symmetrical ones; the two mounting brackets (4) are provided with clamping mechanisms; the inner wall of the mounting brackets (4) is provided with a connecting plate (46) on the lower side; the two mounting brackets (4) are installed between the two mounting brackets (4), and the inner side of the mounting brackets (6) is provided with a limiting bracket (61), and the limiting bracket (61) is provided with two symmetrical ones; the two limiting brackets (61) are provided with limiting slots.

2. The automatic tensile strength testing machine for wires and cables according to claim 1, characterized in that, The clamping mechanism has two symmetrical clamping plates; the clamping mechanism includes clamping plates (42), which have two symmetrical clamping plates on the upper side; the two clamping plates (42) have clamping holes (43), and there are several clamping holes (43); the upper side of the upper clamping plate (42) has two symmetrical telescopic rods (41), the top of which is connected to the top inner wall of the mounting bracket (4); the bottom of the lower clamping plate (42) has two symmetrical telescopic rods (45); the telescopic rods (45) are... (45) The bottom is connected to the top of the mounting frame one (4); the inner walls of the left and right sides of the mounting frame one (4) are provided with mounting plates (5), and gears (51) are installed on the two mounting plates (5); the left side of the two gears (51) is meshed with teeth one (52), and teeth one (52) is installed on the top of the lower clamping plate (42); the right side of the two gears (51) is meshed with teeth two (53), and teeth two (53) is installed on the bottom of the upper clamping plate (42).

3. The automatic tensile strength testing machine for wires and cables according to claim 1, characterized in that, The bottom of the mounting bracket (4) is provided with a movable block (44), which is embedded in the movable groove; a lead screw (31) is provided in the movable groove to the right, and a limiting rod is provided in the movable groove to the left; a motor (3) is provided on the front side of the lead screw (31).

4. The automatic tensile strength testing machine for wires and cables according to claim 1, characterized in that, A reciprocating screw (71) is installed on the mounting bracket 2 (6), and a motor 2 (7) is installed on the right side of the reciprocating screw (71); two symmetrical mounting blocks 1 (72) are installed on the reciprocating screw (71), and a connecting rod (73) is installed at the bottom of each of the two mounting blocks 1 (72), and a rotating rod 1 is provided between the mounting blocks 1 (72) and the connecting rod (73).

5. An automatic testing machine for the tensile strength of wires and cables according to claim 4, characterized in that, The other end of the two connecting rods (73) is provided with a second mounting block (74), and a second rotating rod is provided between the second mounting block (74) and the connecting rod (73); a fixing plate (75) is installed at the bottom of the two second mounting blocks (74), and the fixing plate (75) is installed between the two limit frames (61).

6. An automatic testing machine for the tensile strength of wires and cables according to claim 5, characterized in that, The fixing plate (75) has sliders on its left and right sides, and the sliders are embedded in the limiting grooves; the bottom of the fixing plate (75) has a pull ring (8).

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