Cable conductor direct current resistance testing machine

Abstract

The utility model discloses a cable conductor direct current resistance testing machine, which comprises a measurement and control instrument and an automatic clamp, the measurement and control instrument is positioned on one side of the automatic clamp, the outer wall of the measurement and control instrument is provided with a control line and two groups of test lines, and the two groups of test lines are respectively positioned on the outer wall of the measurement and control instrument; according to the utility model, when the cable conductor is placed on the base surface of the current clamp and the pressure sensors at the two sides generate signals at the same time, the measurement and control instrument control device is enabled to operate, so that the practicability is better; according to the cable conductor direct-current resistance testing machine, effective detection of soft and hard cable conductors is achieved through the measurement and control instrument, the soft conductor is directly clamped and straightened by the current clamp and then measured, the hard conductor is straightened by the straightener and then clamped and measured, the measurement and control instrument controls the measurement process and processes measurement data, and multiple functions are supported; operation is simplified through electrical control of the automatic clamp, and practicability is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to test equipment technical field, concretely is a cable conductor DC resistance testing machine. BACKGROUND

[0002] The cable conductor DC resistance testing machine can accurately measure the DC resistance values of different types and different specifications of cable conductors. Through a specific measurement circuit and a high-precision sensor, it can measure the resistance of cables made of common conductor materials such as copper and aluminum. For example, for the copper conductor in a power cable, the testing machine can accurately measure its DC resistance under a certain length, so as to determine whether the conductivity of the conductor meets the standard requirements.

[0003] In the field of cable production and quality detection today, the cable conductor DC resistance testing machine, as a kind of crucial detection equipment, undertakes the key task of ensuring that the performance of the cable conductor meets the standard specifications. However, when the testing machine detects soft and hard cable conductors of different forms, it has poor practicability, and the testing machine needs to be manually opened to control the switch for detection, which is inconvenient to use. SUMMARY

[0004] To solve the problem of inconvenient use of the cable conductor DC resistance testing machine when detecting soft and hard cable conductors of different forms, the utility model provides a cable conductor DC resistance testing machine to solve the above problems.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A cable conductor DC resistance testing machine, comprising a measurement and control instrument and an automatic clamp, the measurement and control instrument is located on one side of the automatic clamp, wherein the outer wall of the measurement and control instrument is provided with control lines and test lines, and the test lines are provided with two groups and are located on the outer wall of the measurement and control instrument respectively;

[0007] The automatic clamp is composed of a current clamp, a potential clamp, a straightener, an execution motor and a rack, the outer wall of the rack is provided with a bidirectional reverse toothed rod, one end of the bidirectional reverse toothed rod is provided with an execution motor, the other end of the bidirectional reverse toothed rod is rotatably connected to the outer wall of the rack, and the outer wall of the bidirectional reverse toothed rod is sequentially provided with the current clamp, the potential clamp and the straightener.

[0008] As a preferred scheme of the utility model, the connection mode of the current clamp and the bidirectional reverse toothed rod is screw connection, and the connection mode of the current clamp and the rack is sliding connection.

[0009] The straightener, the current clamp and the potential clamp are connected in a rotating mode, the straightener is located 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.

[0010] The current clamp is driven to open and close by an actuator motor one through a current clamp tongue, and the current clamp tongue is in an arc-shaped multi-tooth meshing state.

[0011] The potential clamp is driven to open and close by an actuator motor two through a potential clamp tongue, the potential clamp tongue is in an arc-shaped blade state, and the potential clamp is provided with two groups and located on the outer walls of the bidirectional reverse toothed rods.

[0012] The potential clamp is in a parallel and opposite distribution structure, and the potential clamp is located on one side of the current clamp.

[0013] The straightener is driven to open and close by two groups of actuator motors three through a pair of arc-shaped multi-tooth meshing clamping plates, and the straightener is located between the two potential clamps.

[0014] When the cable conductor is placed on the body of the testing machine, especially when the cable conductor is placed on the base surface of the current clamp, the pressure sensor generates an electric signal which is conducted to the measuring and controlling instrument through a wire, and when the pressure sensors on both sides generate signals at the same time, the measuring and controlling instrument control device is operated, so that the practicability is better, and the problem that the testing machine needs to be manually opened to control the switch for detection and is inconvenient to use is solved.

[0015] The cable conductor direct current resistance testing machine realizes effective detection of soft and hard cable conductors through the measuring and controlling instrument, the soft conductor is directly clamped and straightened by the current clamp for measurement, and the hard conductor is first corrected by the straightener and then clamped and measured, the measuring and controlling instrument not only controls the measurement process but also processes measurement data, supports multiple functions, and the electrical control of the automatic clamp simplifies the operation, so that the practicability is better, and the problem that the testing machine is inconvenient to use when detecting the soft and hard cable conductors with different forms is solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is an A structure enlarged schematic view of the utility model; Figure 1

[0018] Figure 3 It is a top view structure schematic view of the utility model;

[0019] Figure 4 ​The front view structural schematic diagram of the utility model;

[0020] Figure 5 The left view structural schematic diagram of the utility model.

[0021] In the figure: 1, measurement and control instrument; 11, control line; 12, test line; 2, automatic clamp; 201, current clamp; 2011, actuator motor one; 2012, current clamp tongue; 202, potential clamp; 2021, actuator motor two; 2022, potential clamp tongue; 203, straightener; 2031, actuator motor three; 2032, arc multi-tooth engagement clamping plate; 204, execution motor; 205, rack; 206, bidirectional reverse tooth screw rod; 207, pressure sensor. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Embodiment: please refer to Figures 1-5 The cable conductor direct current resistance testing machine shown in the figure, including measurement and control instrument 1 and automatic clamp 2, measurement and control instrument 1 is located at one side of automatic clamp 2, wherein the outer wall of measurement and control instrument 1 is provided with control line 11 and test line 12, and test line 12 is provided with two groups and is located on the outer wall of measurement and control instrument 1 respectively.

[0024] In the embodiment, specific reference is made to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5The automatic clamp 2 consists of a current clamp 201, a potential clamp 202, a straightener 203, an actuator 204, and a frame 205. A bidirectional reverse threaded rod 206 is provided on the outer wall of the frame 205. An actuator 204 is provided at one end of the bidirectional reverse threaded rod 206, and the other end of the bidirectional reverse threaded rod 206 is rotatably connected to the outer wall of the frame 205. The current clamp 201, the potential clamp 202, and the straightener 203 are sequentially provided on the outer wall of the bidirectional reverse threaded rod 206. The current clamp 201 is connected to the bidirectional reverse threaded rod 206 by a threaded connection, and the current clamp 201 is connected to the frame 205 by a sliding connection. The straightener 203, the potential clamp 202, and the bidirectional reverse threaded rod 206 are connected by a rotational connection. The straightener 203 is located between the current clamp 201 and the potential clamp 202. A pressure sensor 207 is provided on the outer wall of one side of the current clamp 201. Based on the above structural features and connection relationships, the current clamp tongue 2012 is an arc-shaped multi-tooth meshing shape to increase the contact surface.

[0025] Among them, the current clamp 201 is driven by the actuator motor 1 2011 to open and close the current clamp tongue 2012, which is an arc-shaped multi-tooth meshing shape. The potential clamp 202 is driven by the actuator motor 2021 to open and close the potential clamp tongue 2022, which is an arc-shaped knife shape. There are two sets of potential clamps 202, which are located on the outer wall of the bidirectional reverse thread screw 206 respectively. The potential clamps 202 are arranged in a parallel and opposite distribution structure. The potential clamps 202 are located on one side of the current clamp 201. The straightener 203 is driven by two sets of actuator motors 3 2031 to open and close a pair of arc-shaped multi-tooth meshing clamps 2032. The straightener 203 is located between the two potential clamps 202.

[0026] When the DC resistance tester for cable conductors in this scheme is working, the measuring and control instrument 1 controls the execution motor 204 to operate through the control line 11, so that the drive shaft of the execution motor 204 drives the bidirectional reverse threaded screw 206 to operate, thereby causing the current clamp 201 to slide and adjust its position on the outer wall of the frame 205. When the current clamp 201 is adjusted to the appropriate position.

[0027] When the cable conductor is placed on the body of the testing machine, especially when the cable conductor is placed on the base surface of the current clamp 201, the pressure sensor 207 installed on one side of the outer wall of the current clamp 201 generates an electrical signal, which is transmitted to the measuring and control instrument 1 through the wire. When the pressure sensors 207 on both sides generate signals at the same time, the measuring and control instrument 1 will control the device to operate, which is more practical.

[0028] When the device clamps the soft cable conductor, the straightening function of the straightener 203 is not put into operation, the cable conductor is clamped and straightened by the current clamp 201, then clamped by the potential clamp 202, and then the direct current resistance measurement procedure is performed. For the hard cable conductor, the straightener 203 is first controlled by the two sets of actuator motors 2031 to realize the straightening and correction of the hard cable conductor by a pair of arc-shaped multi-tooth clamping plates 2032, then the current clamp 201 is clamped, the potential clamp 202 is clamped, and finally the direct current resistance measurement procedure is performed.

[0029] Subsequently, the measurement and control instrument 1 realizes the direct current resistance measurement function of the cable conductor sample, and can also convert, compare and store the measurement data. In addition, the automatic clamp 2 is also electrically controlled. When the cable conductor sample direct current resistance measurement test is performed, the sample setting parameters are set first, then the measurement mode is selected, then the prepared cable conductor sample is placed in the automatic clamp 2, and then the measurement program is started by one key. The direct current resistance value of the sample can be measured conveniently and quickly, thereby solving the problem of inconvenient use of the tester for detecting the soft and hard cable conductors with different forms.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A cable conductor DC resistance tester comprising a measuring and control instrument (1) and an automatic clamp (2), characterized in that: The control instrument (1) is located on one side of the automatic clamp (2), wherein the outer wall of the control instrument (1) is provided with control lines (11) and test lines (12), and the test lines (12) are provided with two groups and are located on the outer wall of the control instrument (1) respectively. 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), the outer wall of the rack (205) is provided with a bidirectional reverse toothed rod (206), one end of the bidirectional reverse toothed rod (206) is provided with the execution motor (204), the other end of the bidirectional reverse toothed rod (206) is rotatably connected to the outer wall of the rack (205), and the outer wall of the bidirectional reverse toothed rod (206) is sequentially provided with the current clamp (201), the potential clamp (202) and the straightener (203).

2. The cable conductor DC resistance tester of claim 1, wherein: The connection mode of the current clamp (201) and the bidirectional reverse toothed rod (206) is screw connection, and the connection mode of the current clamp (201) and the rack (205) is sliding connection.

3. The cable conductor DC resistance tester of claim 2, wherein: The connection mode of the straightener (203), the potential clamp (202) and the bidirectional reverse toothed rod (206) is rotary connection, the straightener (203) is located between the current clamp (201) and the potential clamp (202), and the outer wall of one side of the current clamp (201) is provided with a pressure sensor (207).

4. The cable conductor DC resistance tester of claim 3, wherein: The current clamp (201) is driven by the execution mechanism motor one (2011) to open and close the current clamp tongue (2012), and the current clamp tongue (2012) is in the form of arc-shaped multi-tooth engagement.

5. The cable conductor DC resistance tester of claim 4, wherein: The potential clamp (202) is driven by the execution mechanism motor two (2021) to open and close the potential clamp tongue (2022), and the potential clamp tongue (2022) is in the form of arc-shaped blade, the potential clamp (202) is provided with two groups and is located on the outer wall of the bidirectional reverse toothed rod (206) respectively.

6. The cable conductor DC resistance tester of claim 5, wherein: The potential clamp (202) is in parallel and opposite distribution structure, and the potential clamp (202) is located on one side of the current clamp (201).

7. The cable conductor DC resistance tester of claim 6, wherein: The straightener (203) is driven by two groups of execution mechanism motor three (2031) to open and close a pair of arc-shaped multi-tooth engagement clamping plates (2032), and the straightener (203) is located between the two potential clamps (202).

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