Low-speed precise synchronous welding fume adsorption device

Abstract

The invention discloses a low-speed precise synchronous welding fume adsorption device which comprises a box body (1), a welding fume purification system, a movable driving system and a control panel, the welding fume purification system comprises a dust collection motor (6), an impeller (7), a filter element (8), a universal air suction arm (9) and a dust collection cover (10), and the movable driving system is used for driving the box body (1) to move. Comprising a driving wheel (2), a driven wheel (3), a direct-current gear motor (5) and a motor speed regulator (11), according to the low-speed precise synchronous welding fume adsorption device disclosed by the invention, the efficient purification module and a set of independent ultra-low-speed precise moving module are specifically integrated, and an intuitive speed calibration function is introduced, so that the problems of stability, precision and repeatable synchronization in a speed interval of 0.2-2.0 m / min are effectively solved.

Description

Technical Field

[0001] This invention relates to industrial welding fume purification equipment, and more particularly to a low-speed, precision, synchronous welding fume adsorption device. Background Technology

[0002] Currently, in precision welding or welding of large workpieces, automatic welding machines often move at extremely low speeds of 0.2-1.5 meters per minute. This necessitates that welding fume purification devices move synchronously to capture the fume at its source. However, the driving systems of general-purpose mobile welding fume purifiers have significant shortcomings: First, their motor power and speed are mismatched, resulting in extremely unstable operation at such low speeds, prone to shaking and "creeping" phenomena, making stable synchronization impossible. Second, their speed range is wide, making fine adjustment difficult in the ultra-low speed range, and lacking intuitive speed setting references, operators can only repeatedly adjust by feel, leading to low efficiency and difficulty in reproducing the results. Furthermore, the entire system is not designed as an integrated system for this specific working condition, resulting in a mismatch between movement and purification functions. Summary of the Invention

[0003] The purpose of this invention is to provide a low-speed, precision, and synchronous welding fume adsorption device.

[0004] The technical solution adopted by the present invention to achieve the above objectives is as follows: a low-speed precision synchronous welding fume adsorption device, comprising a housing (1), a welding fume purification system, a mobile drive system, and a control panel. The welding fume purification system includes a dust extraction motor (6) installed in the housing (1), an impeller (7) driven by the dust extraction motor (6), a filter element (8) for filtering fumes, a universal suction arm (9) installed on the top of the housing (1), and a dust extraction hood (10) connected to the universal suction arm (9). The mobile drive system is used to drive the housing (1) to move and includes a drive wheel (2) installed at the bottom of the housing (1), a drive wheel (3), a DC geared motor (5), and a motor speed controller (11) installed in the housing (1). The motor speed controller (11) converts 220V AC power to a maximum of 110V DC power to power the DC geared motor (5). The control panel is installed on the housing (1), and the control panel... The board is equipped with a main switch (K1) for controlling the power supply of the entire device, a mobile motor switch (K2) for individually controlling the start and stop of the mobile drive system, a forward / backward switching switch (K3) for changing the rotation direction of the DC geared motor (5), a continuously variable speed knob (12) for signal connection with the motor speed controller (11) to steplessly adjust the speed of the DC geared motor (5), and a speed calibration disk (13) coaxially mounted with the continuously variable speed knob (12). The speed calibration disk (13) is engraved with scale markings corresponding to speed values ​​of 0.0 m / min, 0.2 m / min, 0.5 m / min, 1.0 m / min, 1.5 m / min, and 2.0 m / min. By operating the continuously variable speed knob (12) and referring to the speed calibration disk (13), the output speed of the DC geared motor (5) is controlled, so that the housing (1) obtains a continuously varying moving speed in the range of 0.2 m / min to 2.0 m / min.

[0005] The vacuum motor (6) has a rated power of 370 watts and a rated speed of 2800 rpm.

[0006] The DC geared motor (5) has a voltage of 110 volts DC, a rated power of 40 watts, and an output speed of 2500 rpm.

[0007] The mobile motor switch (K2) is a self-locking rotary switch.

[0008] The forward / reverse switch (K3) is a three-position self-resetting switch, including forward, stop and reverse positions.

[0009] The continuously variable speed knob (12) is a multi-turn precision potentiometer.

[0010] The motor speed controller (11) is a pulse width modulation type DC motor speed controller.

[0011] The filter element (8), impeller (7) and vacuum motor (6) are arranged in sequence along the airflow direction, with the filter element (8) located upstream of the air inlet of the impeller (7).

[0012] This invention discloses a low-speed, precision-synchronized welding fume adsorption device. By specifically integrating a high-efficiency purification module with a set of independent, ultra-low-speed, precision-moving modules and introducing an intuitive speed calibration function, it effectively solves the problem of stable, accurate, and repeatable synchronization within the speed range of 0.2-2.0 m / min. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a low-speed, precision, synchronous welding fume adsorption device according to the present invention.

[0014] Figure 2 This is a schematic diagram of the electrical system of a low-speed, precision, synchronous welding fume adsorption device according to the present invention.

[0015] Figure 3 This is a schematic diagram of the control panel of a low-speed, precision, synchronous welding fume adsorption device according to the present invention. Detailed Implementation

[0016] like Figures 1 to 3As shown, the low-speed precision synchronous welding fume adsorption device includes a housing 1, a welding fume purification system, a moving drive system, and a control panel. The housing 1 is a steel housing with dimensions of 650mm in length, 410mm in width, and 990mm in height. A power cord 4 is connected to the housing 1. The welding fume purification system includes a vacuum motor 6 installed inside the housing 1, an impeller 7 driven by the vacuum motor 6, a filter element 8 for filtering fumes, a universal suction arm 9 installed on the top of the housing 1, and a dust collection hood 10 connected to the universal suction arm 9. The moving drive system is used to drive the housing 1 to move and includes drive wheels 2 and drive wheels 3 installed at the bottom of the housing 1, a DC geared motor 5, and a motor speed controller 11 installed inside the housing 1. The motor speed controller 11 converts 220V AC power to a maximum of 110V DC power to power the DC geared motor 5 and controls the movement of the housing 1. The control panel is mounted on the housing 1. The control panel includes a main switch K1 for controlling the power supply to the entire device, a mobile motor switch K2 for individually controlling the start and stop of the mobile drive system, a forward / reverse switch K3 for changing the rotation direction of the DC geared motor 5, a continuously variable transmission (CVT) knob 12 for signal connection with the motor speed controller 11 to steplessly adjust the speed of the DC geared motor 5, and a speed calibration dial 13 coaxially mounted with the CVT knob 12. The speed calibration dial 13 is engraved with scale markings corresponding to speed values ​​of 0.0 m / min, 0.2 m / min, 0.5 m / min, 1.0 m / min, 1.5 m / min, and 2.0 m / min. By operating the CVT knob 12 and referring to the speed calibration dial 13, the output speed of the DC geared motor 5 is controlled, allowing the housing 1 to achieve speeds between 0.2 m / min and 2.0 m / min.The moving speed varies continuously within a range of 0 meters per minute. The vacuum motor 6 has a rated power of 370 watts and a rated speed of 2800 rpm. The DC geared motor 5 has a voltage of 110 volts DC, a rated power of 40 watts, and an output speed of 2500 rpm. The moving motor switch K2 is a self-locking rotary switch. The forward / reverse switch K3 is a three-position self-resetting switch, including forward, stop, and reverse positions. The continuously variable speed knob 12 is a multi-turn precision potentiometer. The motor speed controller 11 is a pulse width modulation type DC motor speed controller. Filter element 8 and impeller 7 are also included. The vacuum cleaner motor 6 and the filter element 8 are arranged sequentially along the airflow direction, with the filter element 8 located upstream of the impeller 7's air intake. The power source for the low-speed, precision-synchronized welding fume adsorption device circuit is 220V / 60Hz AC power. One power source directly supplies the 370W vacuum cleaner motor 6, and the other is connected to the motor speed controller 11. The motor speed controller 11 is a PWM type DC speed controller, converting 220VAC to 0-110VDC adjustable DC power. A multi-turn precision potentiometer, acting as a stepless speed control knob 12, is connected to the control terminal of the motor speed controller 11. The output terminal of the motor speed controller 11 is connected to... The DC geared motor 5 is connected. The main switch K1 controls the main power supply, the moving motor switch K2 controls the power supply to the moving system, and the forward / reverse switch K3 switches the polarity of the DC geared motor 5. The control panel of this device includes: the main switch K1, typically a button or rocker switch with an indicator light, used to connect or disconnect the 220V power supply to the entire machine; the moving motor switch K2, a two-position rotary switch, which, when turned counterclockwise to the open position, provides power and locks the system, putting the moving system in standby mode; speed and direction adjustments are only effective at this time. Turning it clockwise to the stop position de-energizes the moving system; forward / reverse... The selector switch K3 is a three-position rotary switch or rocker switch. The middle position is the stop position; turning it clockwise moves it to the forward position, and counterclockwise moves it to the reverse position. This switch directly controls the power polarity of the DC geared motor 5. The continuously variable transmission (CVT) knob 12 is a multi-turn precision potentiometer used for speed adjustment. It has a pointer that accurately indicates the speed scale on the dial. The speed calibration dial 13 is fitted onto the mounting shaft of the CVT knob 12 through its central positioning hole, ensuring that their centers coincide and that they are firmly pressed and fixed to the control panel. The dial is clearly marked with speed scale markings of 0.0, 0.2, 0.5, 0.8, 1.0, 1.2, 1.5, and 2.0.

[0017] This invention relates to a low-speed, precision, synchronous welding fume adsorption device. It employs a modular design concept, with the purification module focusing on fume collection efficiency. A compact housing integrates a 370W / 2800rpm suction motor, impeller, and filter. The movement module focuses on motion precision at ultra-low speeds, featuring an independently configured 110V DC / 40W / 2500rpm DC geared motor and a dedicated motor speed controller that converts 220VAC to 110VDC. Controlled by a continuously variable speed knob, the overall speed is precisely limited and smoothly adjustable within the range of 0.2-2.0 m / min. A speed calibration disc, coaxially mounted with the continuously variable speed knob, has been experimentally calibrated, making speed settings visual, precise, and repeatable.

Claims

1. A low-speed, precision-synchronized welding fume adsorption device, characterized in that: The device includes a housing (1), a welding fume purification system, a mobile drive system, and a control panel. The welding fume purification system includes a vacuum motor (6) installed inside the housing (1), an impeller (7) driven by the vacuum motor (6), a filter element (8) for filtering fumes, a universal suction arm (9) installed on the top of the housing (1), and a dust collection hood (10) connected to the universal suction arm (9). The mobile drive system is used to drive the housing (1) to move and includes a drive wheel (2) installed at the bottom of the housing (1), a drive wheel (3), a DC geared motor (5), and a motor speed controller (11) installed inside the housing (1). The motor speed controller (11) converts 220V AC power to a maximum of 110V DC power to power the DC geared motor (5). The control panel is installed on the housing (1) and has a main control panel for controlling the power supply of the entire device. The system includes a switch (K1), a mobile motor switch (K2) for individually controlling the start and stop of the mobile drive system, a forward / backward switching switch (K3) for changing the rotation direction of the DC geared motor (5), a continuously variable speed control knob (12) for signal connection with the motor speed controller (11) to continuously adjust the speed of the DC geared motor (5), and a speed calibration disk (13) coaxially mounted with the continuously variable speed control knob (12). The speed calibration disk (13) is engraved with scale markings corresponding to speed values ​​of 0.0 m / min, 0.2 m / min, 0.5 m / min, 1.0 m / min, 1.5 m / min, and 2.0 m / min. By operating the continuously variable speed control knob (12) and referring to the speed calibration disk (13), the output speed of the DC geared motor (5) is controlled, so that the housing (1) obtains a continuously varying moving speed in the range of 0.2 m / min to 2.0 m / min.

2. The low-speed, precision, synchronous welding fume adsorption device according to claim 1, characterized in that: The vacuum motor (6) has a rated power of 370 watts and a rated speed of 2800 rpm.

3. The low-speed, precision, synchronous welding fume adsorption device according to claim 1, characterized in that: The DC geared motor (5) has a voltage of 110 volts DC, a rated power of 40 watts, and an output speed of 2500 rpm.

4. The low-speed, precision, synchronous welding fume adsorption device according to claim 1, characterized in that: The mobile motor switch (K2) is a self-locking rotary switch.

5. The low-speed, precision, synchronous welding fume adsorption device according to claim 1, characterized in that: The forward / reverse switch (K3) is a three-position self-resetting switch, including forward, stop and reverse positions.

6. The low-speed, precision, synchronous welding fume adsorption device according to claim 1, characterized in that: The continuously variable speed knob (12) is a multi-turn precision potentiometer.

7. The low-speed, precision, synchronous welding fume adsorption device according to claim 1, characterized in that: The motor speed controller (11) is a pulse width modulation type DC motor speed controller.

8. The low-speed, precision, synchronous welding fume adsorption device according to claim 1, characterized in that: The filter element (8), impeller (7) and vacuum motor (6) are arranged in sequence along the airflow direction, with the filter element (8) located upstream of the air inlet of the impeller (7).

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