CN202204895U - Multifunctional cable failure diagnosis device - Google Patents

Abstract

The utility model relates to a multifunctional cable fault diagnosis device, which is mainly composed of a main power switch, a transformer, a 24V power switch, a fault indicator light, a transfer switch, and a cable plug; A transfer switch and a fault indicator light are connected in series, and the series circuit composed of all the cores of the entire cable is connected in parallel, and then connected in series with the series circuit composed of the main power switch, transformer and 24V power switch to form an overall circuit. It can realize the diagnosis of short circuit, open circuit and virtual connection of automatic stud welding cable, manual stud welding cable, NIMAK welding tongs control line cable, electric hoist flashlight door control line cable; realize the good or bad diagnosis of stud welding drawn arc motor. Reasonable structure, easy to use, can quickly and accurately determine the location of equipment failure, avoid misjudgment, and save costs.

Description

Multifunctional Cable Fault Diagnosis Device

technical field

The utility model relates to a multifunctional cable fault diagnosis device, which is applied to the detection of short circuit, open circuit and virtual connection of equipment cables.

Background technique

At present, many production lines of car models use stud welding, NIMAK welding tongs, electric hoists and other equipment. The cables of these devices often have pulling or pulling actions during operation, causing short circuits, open circuits, and virtual connections inside the cables. When repairing cable breaks and short circuits, in the past, a multimeter was used to measure the inner core wires of the cable one by one, and the number of cable core wires was as many as 22 cores. It took a long time to measure and the workload was heavy. When repairing the virtual connection of the cable, use a multimeter to measure, which is inaccurate and low in work efficiency.

Contents of the invention

The purpose of this utility model is to provide a multifunctional cable fault diagnosis device, which can realize short circuit, open circuit, virtual fault of automatic stud welding cable, manual stud welding cable, NIMAK welding clamp control line cable, electric hoist flashlight door control line cable, etc. Connected diagnosis; Realize good or bad diagnosis of stud welding drawn arc motor.

The technical scheme of the utility model is realized in this way: a multifunctional cable fault diagnosis device, which is mainly composed of a main power switch, a transformer, a 24V power switch, a fault indicator light, a transfer switch, and a cable plug; it is characterized in that: each A cable core is connected in series with a transfer switch and a fault indicator light. After the series circuit composed of all the cores of the entire cable is connected in parallel, it is connected in series with the series circuit composed of the main power switch, transformer and 24V power switch. overall circuit.

The positive effect of the utility model is that the structure is reasonable, the use is convenient, and the location of equipment failure can be quickly and accurately determined to avoid misjudgment and save costs.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Figure 2 is a schematic diagram of the measurement of the automatic stud welding cable.

Figure 3 is a schematic diagram of the measurement of the manual stud welding cable.

Figure 4 is a schematic diagram of the measurement of the NIMAK welding tongs control cable.

Figure 5 is a schematic diagram of the measurement of the electric hoist flashlight door control cable.

Fig. 6 is a schematic diagram of a DC motor test of a manual stud welding torch.

Detailed ways

Below in conjunction with the accompanying drawings the utility model is further described: as shown in Figure 1, the multifunctional cable fault diagnosis device consists of a main power switch 1, a transformer 2, a 24V power switch 3, a fault indicator light 4, a transfer switch 5, and a cable plug 6 components; it is characterized in that: in the circuit, the main power switch 1, the transformer 2, and the 24V power switch 3 are connected in series, and each cable core is connected in series with a transfer switch 5 and a fault indicator light 4, the entire cable After the series circuit composed of all the cable cores is connected in parallel, it is connected in series with the series circuit composed of the main power switch 1, the transformer 2 and the 24V power switch 3 to form an overall circuit.

Wherein the power supply passes through the main power switch 1 and is transformed into DC 24V by a transformer, which is used as an effective power supply for the test cable; As shown in Figure 2-6, the cables of automatic stud welding, manual stud welding, NIMAK welding tongs control line, electric hoist flashlight door, manual stud welding motor and other equipment are tested. Equipped with short circuit detection, open circuit detection and virtual connection detection of cables.

If the test cable is on/off, turn all the switches to the on position and observe all the fault indicator lights 4. If any fault indicator light is off, it means that the core wire is broken; if the test result is that the fault indicator lights 4 are all on , it can be preliminarily judged that the cable is short-circuited. Turn all the transfer switches 5 to the off position, and then turn the transfer switches 5 one by one. If you turn a transfer switch 5, you will find that two or more fault indicators 4 are on , then the core wire is short-circuited.

As shown in Figure 2, when the fault diagnosis device is powered on, the Q4-Q25 transfer switch 5 is in the closed state. At this time, the Q1 is closed, that is, the power switch 1, and the Q2 is the 24V power switch 3, and the Q3 selection switch 7 is placed in the automatic stud welding. position, at this moment the current passes through the cable core on the Q4-Q25 changeover switch 5 and the cable plug 6 connected therewith to make all 22 fault indicator lamps light up in total. If a certain cable core has a fault, the current cannot pass through, and its corresponding fault indicator light 4 will not light up.

As shown in Figure 3, when the fault diagnosis device is powered on, the Q4-Q24 transfer switch 5 is in the closed state. At this time, close Q1, that is, the power switch 1, and Q2 is the 24V power switch 3. Put the Q3 selection switch 7 on the manual stud Welding position, current passes through the cable core on the Q4-Q24 changeover switch 5 and the cable plug 6 connected with it to make all 21 fault indicator lamps 4 light up in total. If a certain cable core has a fault, the current cannot pass through, and its corresponding fault indicator light 4 will not light up.

As shown in Figure 4, when the fault diagnosis device is powered on, the Q4-Q20 transfer switch 5 is in the closed state. At this time, close Q1, which is the power switch, and Q2 is the 24V power switch 3. Put the Q3 selector switch 7 in the IQR position, and the current All 17 fault indicator lamps are lighted up by the cable core on the Q4-Q20 transfer switch 5 and the cable plug 6 connected thereto. If a cable core is faulty, the current cannot pass through, and its corresponding fault indicator light will not light up.

As shown in Figure 5, when the fault diagnosis device is powered on, the Q21-Q27 transfer switch is in the closed state. At this time, close Q1, which is the power switch, and Q2 is the 24V power switch 3. Put the Q3 selection switch 7 on the position of the electric hoist cable. The current passes through the Q21-Q27 changeover switch 5 and the cable core on the cable plug 6 connected to it and the corresponding button (emergency stop button-fast left and right buttons) is pressed, and the corresponding fault indicator light 4 will light up, such as a cable If the core is faulty, the current cannot pass through, and the corresponding fault indicator light will not light up.

As shown in Figure 6, when the fault diagnosis device is powered on, close Q1, that is, the power switch 1 and 24V power switch 3, and put the Q3 selection switch 7 in the motor test position, and the current passes through the motor under test. If there is no action, then Proves that the secondary motor has failed.

Claims (1)

1. multifunctional electric cable failure diagnostic device, it is mainly by main power switch, transformer, the 24V power switch, malfunction indicator lamp, switch, cable plug is formed; It is characterized in that: each a root cable core and a switch and a malfunction indicator lamp are in series in circuit; After the series circuit that all cable cores of whole cable are formed was connected in parallel, the series circuit of forming with main power switch, transformer, 24V power switch again was in series and connects and composes bulk loop.

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