Water and land cutting, welding and breaking all-in-one machine

Abstract

The utility model belongs to the technical field of low-voltage electric welding machines, and particularly relates to a land and water cutting, welding and forcible entry all-in-one machine, which comprises a power supply unit, a weak current unit, a microprocessor control unit, a voltage detection unit, a current detection unit and a driving unit, the power supply unit supplies power to the whole system, the weak current unit supplies power to the microprocessor control unit, and the voltage detection unit supplies power to the microprocessor control unit. The voltage detection unit is used for detecting system voltage and sending a system voltage value to the microprocessor control unit, the current detection unit is used for detecting current consumed by the driving unit and sending a signal to the microprocessor control unit, and the microprocessor control unit outputs a PWM (Pulse Width Modulation) signal to control the driving unit to work. And the power supply unit comprises a direct current power supply circuit and an alternating current power supply circuit, and has the advantages of low-voltage welding, safety, reliability, flexible and diversified power supply and the like.

Description

Technical Field

[0001] This utility model belongs to the field of low-voltage electric welding machine technology, and specifically relates to an integrated underwater and land cutting, welding and demolition machine, which is particularly suitable for use as an underwater electric welding machine. Background Technology

[0002] Currently, AC welding machines are the main type of welding machines on the market, while DC welding machines are less commonly used, and DC welding machines used underwater are even rarer.

[0003] An AC welding machine system typically includes an isolation step-down transformer and a residual current circuit breaker. The isolation step-down transformer adjusts the number of secondary turns via a crank or adjustable switch to change the voltage, thereby adapting to welding rods of different diameters. This type of welding machine is relatively large and cannot automatically adjust the voltage and current. In case of leakage, the residual current circuit breaker provides protection. Utility Model Content

[0004] This utility model provides an integrated machine for cutting, welding, and dismantling both land and water, which can solve the problems pointed out in the background art.

[0005] The integrated amphibious cutting, welding, and demolition machine includes a power supply unit, a low-voltage unit, a microprocessor control unit, a voltage detection unit, a current detection unit, and a drive unit. The power supply unit supplies power to the entire system, the low-voltage unit supplies power to the microprocessor control unit, the voltage detection unit detects the system voltage and sends the system voltage value to the microprocessor control unit, the current detection unit detects the current consumed by the drive unit and sends a signal to the microprocessor control unit, and the microprocessor control unit outputs a PWM signal to control the drive unit to work and collect the system voltage and current. The power supply unit 1 includes a DC power supply circuit and an AC power supply circuit.

[0006] Preferably, the DC power supply circuit includes terminals AC1, AC2, an isolation transformer T1, and rectifier components D1, D2, D3, and D4, and the AC power supply circuit includes terminals DC+, DC-, and a voltage stabilizing capacitor C1.

[0007] Preferably, the low-voltage unit comprises a reverse connection protection device D5, a filter capacitor C2, a filter capacitor C3, a filter capacitor C4, a filter capacitor C5, and a voltage regulator WY1, to provide power to the microprocessor control unit, thereby ensuring the normal operation of the entire control system.

[0008] Preferably, the microprocessor control unit is based on a single-chip microcomputer or a PLC.

[0009] Preferably, the voltage detection unit includes voltage divider components R1, R2, and C6. The voltage of the entire system is filtered and transmitted to the microprocessor control unit to achieve high and low voltage protection.

[0010] Preferably, the current detection unit is a current sampling module CT1, which transmits the acquired current signal to the microprocessor control unit. The microprocessor control unit outputs a PWM waveform according to the magnitude of the current value to control the drive unit to work; thus limiting the magnitude of the welding current and achieving the ability to automatically control the current.

[0011] Preferably, the driving unit includes a switching device Q1, a clamping diode D6, a filter inductor L1, a welding torch positive electrode HQ1, and a welding torch negative electrode HQ2.

[0012] Beneficial effects: This utility model provides an integrated underwater and land-based cutting, welding, and demolition machine, which has the following beneficial effects:

[0013] 1. It can be powered by either AC or DC, offering flexible power supply options;

[0014] 2. The output voltage of the power supply system is controlled by PWM waveform to achieve the basic requirements of the underwater welding machine;

[0015] 3. Add voltage and current detection and control to protect against low output voltage and high output current of the welding machine, thereby extending the service life of the equipment and realizing voltage and current regulation and control. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the system of this utility model.

[0017] Explanation of reference numerals in the attached figures:

[0018] The diagram is labeled as follows: Power supply unit 1; Low voltage unit 2; Microprocessor control unit 3; Voltage detection unit 4; Current detection unit 5; Drive unit 6. Detailed Implementation

[0019] The following describes a specific embodiment of the present invention in detail with reference to the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0020] Example:

[0021] like Figure 1As shown, the integrated underwater cutting, welding, and demolition machine includes a power supply unit 1, a low-voltage unit 2, a microprocessor control unit 3, a voltage detection unit 4, a current detection unit 5, and a drive unit 6. The power supply unit 1 supplies power to the entire system, the low-voltage unit 2 supplies power to the microprocessor control unit 3, the voltage detection unit 4 is used to detect the system voltage and send the system voltage value to the microprocessor control unit 3, the current detection unit 5 is used to detect the current consumed by the drive unit and send the signal to the microprocessor control unit 3, the microprocessor control unit 3 outputs a PWM signal to control the drive unit 6 to work and collect the system voltage and current. The power supply unit 1 includes a DC power supply circuit and an AC power supply circuit.

[0022] Specific references Figure 1 The DC power supply circuit includes terminals AC1 and AC2, an isolation transformer T1, and rectifier components D1, D2, D3, and D4. The rectifier components can be diodes, MOSFETs, IGBTs, etc. The AC power supply circuit includes terminals DC+ and DC-, and a voltage regulator capacitor C1.

[0023] Specifically, the low-voltage unit 2 consists of a reverse connection protection device D5, filter capacitors C2, C3, C4, and C5, as well as a voltage regulator WY1, to provide power to the microprocessor control unit 3, thereby ensuring the normal operation of the entire control system.

[0024] Specifically, the microprocessor control unit 3 is based on a single-chip microcomputer or a PLC. The microprocessor control unit 3 consists of an IC1 module and is connected to the low-voltage unit 2, voltage detection unit 4, current detection unit 5, and drive unit 6 to realize the control of the entire system.

[0025] Specifically, the voltage detection unit 4 includes voltage divider components R1, R2, and C6. The voltage of the entire system is filtered and transmitted to the microprocessor control unit 3 to achieve high and low voltage protection.

[0026] Specifically, the current detection unit 5 is a current sampling module CT1, which transmits the acquired current signal to the microprocessor control unit 3. The microprocessor control unit 3 outputs a PWM waveform to control the drive unit 6 to work according to the magnitude of the current value; thus limiting the magnitude of the welding current and achieving the ability to automatically control the current.

[0027] Specifically, the drive unit 6 includes a switching device Q1, a clamping diode D6, a filter inductor L1, a welding torch positive electrode HQ1, and a welding torch negative electrode HQ2. The switching device can be a MOSFET, a transistor, an IGBT, or a thyristor.

[0028] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. An integrated amphibious cutting, welding, and demolition machine, characterized in that: The system includes a power supply unit (1), a low-voltage unit (2), a microprocessor control unit (3), a voltage detection unit (4), a current detection unit (5), and a drive unit (6). The power supply unit (1) supplies power to the entire system, the low-voltage unit (2) supplies power to the microprocessor control unit (3), the voltage detection unit (4) detects the system voltage and sends the system voltage value to the microprocessor control unit (3), the current detection unit (5) detects the current consumed by the drive unit and sends the signal to the microprocessor control unit (3), and the microprocessor control unit (3) outputs a PWM signal to control the drive unit (6) to work and collect the system voltage and current. The power supply unit (1) includes a DC power supply circuit and an AC power supply circuit.

2. The integrated amphibious cutting, welding, and demolition machine according to claim 1, characterized in that: The DC power supply circuit includes terminals AC1 and AC2, an isolation transformer T1, and rectifier components D1, D2, D3, and D4. The AC power supply circuit includes terminals DC+ and DC-, and a voltage stabilizing capacitor C1.

3. The integrated amphibious cutting, welding, and demolition machine according to claim 1, characterized in that: The low-voltage unit (2) consists of a reverse connection protection device D5, a filter capacitor C2, a filter capacitor C3, a filter capacitor C4, a filter capacitor C5, and a voltage regulator WY1, which provides power to the microprocessor control unit (3) and thus ensures the normal operation of the entire control system.

4. The integrated amphibious cutting, welding, and demolition machine according to claim 1, characterized in that: The microprocessor control unit (3) is based on a single-chip microcomputer or a PLC.

5. The integrated amphibious cutting, welding, and demolition machine according to claim 1, characterized in that: The voltage detection unit (4) includes voltage divider components R1, R2 and C6. The voltage of the entire system is filtered by voltage divider and then transmitted to the microprocessor control unit (3) to achieve high and low voltage protection.

6. The integrated amphibious cutting, welding, and demolition machine according to claim 1, characterized in that: The current detection unit (5) is a current sampling module CT1, which transmits the acquired current signal to the microprocessor control unit (3). The microprocessor control unit (3) outputs a PWM waveform according to the magnitude of the current value to control the drive unit (6) to work; limiting the magnitude of the welding current, thereby realizing the ability to automatically control the current.

7. The integrated amphibious cutting, welding, and demolition machine according to claim 1, characterized in that: The drive unit (6) includes a switching device Q1, a clamping diode D6, a filter inductor L1, a welding torch positive electrode HQ1, and a welding torch negative electrode HQ2.

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