CN223611614U - A DC resistance tester for cable conductors - Google Patents

Abstract

The utility model discloses a cable conductor direct current resistance testing machine, which comprises a measurement and control instrument and an automatic clamp, wherein the measurement and control instrument is positioned at one side of the automatic clamp, a control line and a test line are arranged on the outer wall of the measurement and control instrument, and the test lines are provided with two groups and are respectively positioned on the outer wall of the measurement and control instrument; when the cable conductor is placed on the base surface of the current clamp, the pressure sensors at two sides can enable the control device of the measuring and control instrument to operate when signals are simultaneously generated, the practical applicability is better, the cable conductor direct-current resistance tester is used for effectively detecting the soft and hard cable conductor through the measuring and control instrument, the soft conductor is directly clamped and straightened by the current clamp and then measured, the hard conductor is corrected by the straightener and then clamped and measured, the measuring and control instrument not only controls the measuring flow, but also processes the measuring data, multiple functions are supported, the electric control of the automatic clamp is simplified, and the practical applicability is better.

Description

Cable conductor direct current resistance testing machine

Technical Field

The utility model relates to the technical field of test equipment, in particular to a cable conductor direct current resistance tester.

Background

The direct current resistance tester for the cable conductors can accurately measure the direct current resistance values of the cable conductors of different types and different specifications. By means of specific measuring circuit and high-precision sensor, it can make resistance measurement of cable made of common conductor material of copper and aluminium. For example, for copper conductors in power cables, the testing machine can accurately measure the direct current resistance of the copper conductors under a certain length, so as to judge whether the conductivity of the conductors meets the standard requirements;

In the field of cable production and quality detection, a cable conductor direct current resistance testing machine is used as a vital detection device and bears a key task of ensuring that the cable conductor performance accords with standard specifications. However, when the testing machine detects cable conductors in two different shapes of hardness, the practicability is poor, and the testing machine needs to manually open a control switch to detect, so that the testing machine is inconvenient to use.

Disclosure of utility model

In order to solve the problem that when the cable conductor direct current resistance tester detects, the tester is inconvenient to use when detecting cable conductors in two different shapes, namely, hardness and softness, the utility model provides the cable conductor direct current resistance tester to solve the problem.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the cable conductor direct current resistance testing machine comprises a measurement and control instrument and an automatic clamp, wherein the measurement and control instrument is positioned on one side of the automatic clamp, a control line and a test line are arranged on the outer wall of the measurement and control instrument, and the test lines are provided with two groups and are respectively positioned on the outer wall of the measurement and control instrument;

The automatic clamp comprises a current clamp, a potential clamp, a straightener, an execution motor and a rack, wherein a bidirectional anti-tooth screw rod is arranged on the outer wall of the rack, the execution motor is arranged at one end of the bidirectional anti-tooth screw rod, the other end of the bidirectional anti-tooth screw rod is rotationally connected to the outer wall of the rack, and the current clamp, the potential clamp and the straightener are sequentially arranged on the outer wall of the bidirectional anti-tooth screw rod.

As a preferable scheme of the utility model, the current clamp and the bidirectional inverted tooth wire rod are connected in a threaded mode, and the current clamp and the rack are connected in a sliding mode.

As a preferable scheme of the utility model, the straightener is rotationally connected with the potential clamp and the bidirectional inverted tooth wire rod, the straightener is positioned between the current clamp and the potential clamp, and a pressure sensor is arranged on the outer wall of one side of the current clamp.

As a preferable scheme of the utility model, the current clamp is opened and closed by driving a current clamp tongue by an actuating mechanism motor, and the current clamp tongue is in an arc multi-tooth meshing shape.

As a preferable scheme of the utility model, the potential clamp is opened and closed by the two driving potential clamp tongues of the motor of the actuating mechanism, the potential clamp tongues are arc-shaped knife-shaped, and the potential clamp is provided with two groups and is respectively positioned on the outer wall of the bidirectional inverted tooth screw rod.

As a preferable scheme of the utility model, the potential clamps are of parallel opposite distribution structures, and the potential clamps are positioned on one side of the current clamp.

As a preferable scheme of the utility model, the straightener is opened and closed by three driving of two groups of actuating mechanism motors and a pair of arc multi-tooth meshing clamping plates, and the straightener is positioned between two potential clamps.

When the cable conductor is placed on the machine body of the testing machine, particularly when the cable conductor is placed on the base surface of the current clamp, the pressure sensors generate electric signals and transmit the electric signals to the measuring and controlling instrument through the lead, and when the pressure sensors at the two sides generate signals at the same time, the control device of the measuring and controlling instrument can operate, so that the practicability is better, and the problem that the testing machine needs to manually open the control switch for detection and is inconvenient to use is solved.

According to the utility model, the current clamp, the potential clamp and the straightener are arranged, the cable conductor direct-current resistance tester realizes effective detection of the soft and hard cable conductors through the measurement and control instrument, the soft cable conductors are measured after being directly clamped and straightened by the current clamp, the hard cable conductors are corrected by the straightener and then clamped and measured, the measurement and control instrument not only controls the measurement flow, but also processes the measurement data, supports multiple functions, simplifies the operation by the electrical control of the automatic clamp, has better practicability, and solves the problem of inconvenient use when the tester detects the soft and hard cable conductors in two different forms.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an enlarged schematic view of the structure A of FIG. 1 according to the present utility model;

FIG. 3 is a schematic top view of the present utility model;

FIG. 4 is a schematic diagram of the front view of the present utility model;

fig. 5 is a schematic left-view structure of the present utility model.

In the figure, 1, a measurement and control instrument, 11, a control wire, 12, a test wire, 2, an automatic clamp, 201, a current clamp, 2011, an actuator motor I, 2012, a current clamp tongue, 202, a potential clamp, 2021, an actuator motor II, 2022, a potential clamp tongue, 203, a straightener, 2031, an actuator motor III, 2032, an arc multi-tooth meshing clamping plate, 204, an actuator motor, 205, a rack, 206, a bidirectional anti-tooth screw rod, 207 and a pressure sensor.

Detailed Description

The technical solutions of 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, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.

Referring to fig. 1-5, the direct current resistance tester for the cable conductor comprises a measurement and control instrument 1 and an automatic clamp 2, wherein the measurement and control instrument 1 is positioned on one side of the automatic clamp 2, a control line 11 and a test line 12 are arranged on the outer wall of the measurement and control instrument 1, and the test lines 12 are arranged in two groups and are respectively positioned on the outer wall of the measurement and control instrument 1.

In this embodiment, referring specifically to fig. 1, 2, 3, 4 and 5, the automatic clamp 2 is composed of a current clamp 201, a potential clamp 202, a straightener 203, an execution motor 204 and a rack 205, a bidirectional anti-tooth screw 206 is provided on the outer wall of the rack 205, one end of the bidirectional anti-tooth screw 206 is provided with the execution motor 204, the other end of the bidirectional anti-tooth screw 206 is rotatably connected to the outer wall of the rack 205, the current clamp 201, the potential clamp 202 and the straightener 203 are sequentially provided on the outer wall of the bidirectional anti-tooth screw 206, the connection mode of the current clamp 201 and the bidirectional anti-tooth screw 206 is a threaded connection, the connection mode of the current clamp 201 and the rack 205 is a sliding connection, the straightener 203 and the potential clamp 202 are rotatably connected, the straightener 203 is located between the current clamp 201 and the potential clamp 202, and a pressure sensor 207 is provided on the outer wall on one side of the current clamp 201. Based on the above structural features and the connection relationship, the current clamp 2012 has an arc-shaped multi-tooth engagement shape to increase the contact surface.

The current clamp 201 is opened and closed by an actuator motor 2011 to drive a current clamp tongue 2012, the current clamp tongue 2012 is in an arc multi-tooth meshing shape, the potential clamp 202 is opened and closed by an actuator motor two 2021 to drive a potential clamp tongue 2022, the potential clamp 2022 is in an arc knife shape, the potential clamp 202 is provided with two groups and is respectively positioned on the outer wall of the bidirectional counter tooth screw rod 206, the potential clamp 202 is in a parallel and opposite distribution structure, the potential clamp 202 is positioned on one side of the current clamp 201, the straightener 203 is opened and closed by two groups of actuator motors three 2031 to drive a pair of arc multi-tooth meshing clamping plates 2032, and the straightener 203 is positioned between the two potential clamps 202.

When the cable conductor direct current resistance testing machine works, the measuring and control instrument 1 controls the execution motor 204 to operate through the control line 11, so that a driving shaft of the execution motor 204 drives the bidirectional anti-tooth screw rod 206 to operate, and further the current clamp 201 slides on the outer wall of the rack 205 to adjust the position, and when the current clamp 201 is adjusted to a proper position.

When the cable conductor is placed on the machine body of the testing machine, particularly when the cable conductor is placed on the base surface of the current clamp 201, under the action of the pressure sensor 207 arranged on the outer wall of one side of the current clamp 201, the pressure sensor 207 generates an electric signal and transmits the electric signal to the measuring and controlling instrument 1 through a wire, and when the pressure sensors 207 on two sides generate signals at the same time, the control device of the measuring and controlling instrument 1 can operate, so that the practicability is better;

When the device is used for clamping a flexible cable conductor, the straightening function of the straightener 203 is not input, the cable conductor is clamped and straightened by the current clamp 201, then the potential clamp 202 is used for clamping, a direct current resistance measurement program is performed, for a hard cable conductor, the straightener 203 controls a pair of arc-shaped multi-tooth meshing clamping plates 2032 through two groups of actuating mechanism motors three 2031, straightening and correcting the hard cable conductor are achieved, then the current clamp 201 is used for clamping, the potential clamp 202 is used for clamping in sequence, and finally a direct current resistance measurement program is performed.

The measurement and control instrument 1 realizes the direct current resistance measurement function of the cable conductor sample, can convert, compare and store measurement data simultaneously, and in addition, also carries out electric control to the automatic clamp 2, when carrying out the direct current resistance measurement test of the cable conductor sample, firstly sets parameters according to the sample, then selects a measurement mode, then puts the cable conductor with the sample into the automatic clamp 2, and then starts a measurement program by one key, so that the direct current resistance value of the sample can be measured conveniently and rapidly, and the problem that the tester is inconvenient to use when detecting the cable conductors with two different forms of hardness is solved.

Although embodiments of the present utility model 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 therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The cable conductor direct current resistance testing machine comprises a measurement and control instrument (1) and an automatic clamp (2) and is characterized in that the measurement and control instrument (1) is positioned on one side of the automatic clamp (2), a control line (11) and a test line (12) are arranged on the outer wall of the measurement and control instrument (1), and the test lines (12) are provided with two groups and are respectively positioned on the outer wall of the measurement and control instrument (1);

Automatic anchor clamps (2) are by electric current clamp (201), potentiometre clamp (202), straightener (203), execution motor (204) and rack (205) are constituteed, be provided with two-way anti-tooth lead screw (206) on the outer wall of rack (205), one end of two-way anti-tooth lead screw (206) is provided with execution motor (204), the other end of two-way anti-tooth lead screw (206) rotates to be connected on the outer wall of rack (205), electric current clamp (201), potentiometre clamp (202) and straightener (203) have been set gradually on the outer wall of two-way anti-tooth lead screw (206).

2. The DC resistance tester for cable conductors according to claim 1, wherein the current clamp (201) is connected with the bidirectional inverted tooth screw (206) in a threaded manner, and the current clamp (201) is connected with the bench (205) in a sliding manner.

3. The direct current resistance testing machine for the cable conductor is characterized in that the straightener (203) is connected with the potential clamp (202) and the bidirectional inverted tooth screw rod (206) in a rotating mode, the straightener (203) is located between the current clamp (201) and the potential clamp (202), and a pressure sensor (207) is arranged on the outer wall of one side of the current clamp (201).

4. A DC resistance tester for cable conductors according to claim 3, wherein the current clamp (201) is opened and closed by an actuator motor (2011) driving a current clamp tongue (2012), and the current clamp tongue (2012) is in an arc multi-tooth meshing shape.

5. The direct current resistance testing machine for cable conductors according to claim 4, wherein the potential clamp (202) is opened and closed by a potential clamp tongue (2022) driven by an actuator motor II (2021), the potential clamp tongue (2022) is in an arc shape, and the potential clamp (202) is provided with two groups and is respectively positioned on the outer wall of the bidirectional counter tooth screw rod (206).

6. The direct current resistance tester for the cable conductor according to claim 5, wherein the potential clamps (202) are in parallel opposite distribution structures, and the potential clamps (202) are positioned on one side of the current clamp (201).

7. The direct current resistance testing machine for cable conductors according to claim 6, wherein the straightener (203) is driven by two groups of actuating mechanism motors three (2031) to open and close a pair of arc-shaped multi-tooth meshing clamping plates (2032), and the straightener (203) is positioned between two potential clamps (202).