Motor-driven multi-jet-flow-nozzle translation and rotation adjusting device

Abstract

The invention discloses a motor-driven multi-jet-flow-nozzle translation and rotation adjusting device, and belongs to the technical field of fluid jetting. The device aims to solve the problems of low efficiency, poor precision, insufficient stability and the like due to the fact that an existing multi-jet-flow nozzle depends on manual adjustment. The device comprises a rotation adjusting device, a translation adjusting device, a multi-jet-flow nozzle body and an integrated control module. The rotation adjusting device and the translation adjusting device are driven by independent servo motors respectively, and rotation adjustment (the deviation is smaller than or equal to + / -0.5 degrees) of the nozzle in the range of 0-120 degrees and translation adjustment (the precision is smaller than or equal to + / -0.05 mm) of the nozzle in the range of 50-180mm are achieved through cooperation of a ball screw and a linear guide rail. The multi-jet nozzle body is integrated with three independently-controlled jet channels, and single-channel and multi-channel synchronous or alternate jetting is supported. Manual adjustment is replaced by motor driving, the adjusting efficiency, precision and operation stability are remarkably improved, and the jet flow adjusting device is suitable for industrial cleaning, spraying, cooling and other scenes with high-precision requirements for jet flow.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fluid jet technology, in particular to a high-precision jet device for industrial precision cleaning, surface spraying, electronic device cooling and agricultural irrigation, and more particularly to a multi-jet nozzle device driven by a motor and having high-precision translation and rotation adjustment functions. BACKGROUND

[0002] In fluid jet operations such as industrial cleaning, vehicle body spraying, and chip cooling, the adjustment flexibility, precision, and stability of the nozzle device are crucial. Currently, most multi-jet nozzle devices on the market have the following defects: first, they generally rely on manual translation and rotation adjustment, which is inefficient and prone to human error; second, the adjustment precision is insufficient, with translation errors exceeding ±1mm and rotation errors exceeding ±2°, making it difficult to meet the needs of precision operations; third, the jet coverage pattern is fixed, with poor adaptability; and finally, the mechanical structure is not stable enough, and vibrations may occur during adjustment, affecting the jetting effect.

[0003] Although some improved devices use mechanical transmission to improve precision, there are still obvious deficiencies: they mostly use a single drive source, which cannot achieve independent precise control of translation and rotation; the jet channel is usually designed as a fixed type, which cannot flexibly switch the jetting mode; and they lack real-time feedback and closed-loop control, with low automation, which cannot meet the needs of modern industry for high-precision and high-efficiency operations. SUMMARY

[0004] The present application aims to overcome the shortcomings of the prior art and provide a motor-driven multi-jet nozzle translation and rotation adjustment device. Through independent driving by double servo motors, high-precision transmission structure, and multi-channel independent control design, high-precision and high-stability independent adjustment of translation and rotation is achieved, effectively improving the efficiency, precision, and adaptability of jetting operations.

[0005] To achieve the above-mentioned purposes, the present application adopts the following technical solutions: A motor-driven multi-jet nozzle translation-rotation adjustment device, comprising a rotation adjustment device, a translation adjustment device, a multi-jet nozzle body and an integrated control module. The rotation adjustment device drives a ball screw assembly through a servo motor, moves a sliding block along the axial direction, and then pushes a flat plate along a slide rod through a sliding block connector, finally realizes the precise rotation of the translation device and the nozzle body installed thereon, the adjustment range is 0-120°, and the deviation is ≤±0.5°. The translation adjustment device drives the screw to rotate through another servo motor, drives the sliding block to move along the slide rod, and then drives the nozzle body to realize linear motion through the nozzle connector, the adjustment range is 50-180mm, and the precision is ≤±0.05mm. The multi-jet nozzle body integrates three independent jet channels, each channel is controlled by a solenoid valve, and supports multiple spraying modes. The integrated control module receives operation instructions or preset programs, controls the coordinated work of the two servo motors and the solenoid valve, and can receive encoder feedback signals to realize closed-loop control.

[0006] Further, the rotation adjustment device and the translation adjustment device both adopt high-precision ball screws and linear guide pairs to ensure stable transmission and high precision.

[0007] Further, the servo motors all adopt servo motors with built-in high-precision encoders, and form a position closed-loop control system with the integrated control module, which is the key to realize high-precision adjustment.

[0008] Further, the integrated control module can adopt a PLC or a single-chip microcomputer system, has a man-machine interface, and supports functions such as parameter presetting, automatic operation and manual fine adjustment.

[0009] The beneficial effects of the present application are: 1. High adjustment precision: through servo motor closed-loop control combined with high-precision screw guide, ±0.05mm translation precision and ±0.5° rotation precision are realized. 2. High automation degree: double-motor independent driving, unified control by the integrated control module, automatic operation can be realized, and the efficiency is greatly improved. 3. Good stability: the optimized mechanical structure (such as elastic coupling, screw support, additional nozzle fixing plate) effectively enhances the system rigidity and reduces the vibration. 4. Strong adaptability: multi-channel independent control design can flexibly select the spraying mode according to the needs, and expands the application range. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 It is the overall structure of the present application

[0011] Fig. 2 It is the structure diagram of the rotation adjustment device of the present application

[0012] Fig. 3 Structure diagram of the translation adjustment device of the present application

[0013] In the figure: 1, rotation adjustment device; 1-1, screw connecting piece; 1-2, flat plate connecting piece; 1-3, sliding block; 1-4, screw assembly; 1-5, lower support flat plate; 1-6, sliding block connecting piece; 1-7, sliding rod fixed base; 1-8, sliding rod; 1-9, flat plate; 2, translation adjustment device; 2-1, bearing seat; 2-2, screw support; 2-3, flat plate; 2-4, sliding rod support; 2-5, sliding rod; 2-6, nozzle lower base; 2-7, nozzle body; 2-8, nozzle connecting piece; 2-9, nozzle upper cover; 2-10, elastic coupling; 2-11, upper gasket; 2-12, motor base; 2-13, screw; 2-14, bearing seat; 2-15, sliding block; 2-16, nozzle fixing plate. DETAILED DESCRIPTION

[0014] The present application will be further described in detail below in combination with the drawings and examples.

[0015] As Figs. 1 to 3 shown, the present embodiment provides a motor-driven multi-jet nozzle translation rotation adjustment device.

[0016] The lower support flat plate (1-5) of the rotation adjustment device (1) is fixed on the equipment rack by bolts. Two sliding rods (1-8) are fixed symmetrically on both sides of the lower support flat plate (1-5) through the sliding rod fixed base (1-7). A screw assembly (1-4) is installed in the middle of the lower support flat plate (1-5) through a bearing seat, one end of which is connected with the output shaft of a servo motor (not shown in the figure, preferably a Panasonic MINAS A6 series servo motor with a rated torque of 1.0 N·m and a built-in 24-bit encoder) through a coupling. A sliding block (1-3) is engaged with the screw assembly (1-4). A flat plate (1-9) is sleeved on the two sliding rods (1-8) through the through holes on it and can slide along the sliding rods. The flat plate (1-9) is connected with the sliding block (1-3) through the flat plate connecting piece (1-2) and the sliding block connecting piece (1-6). When the servo motor drives the screw assembly (1-4) to rotate, the sliding block (1-3) moves axially, and the flat plate (1-9) and the entire translation adjustment device (2) installed thereon are driven to rotate around the rotation center through the connecting pieces.

[0017] The flat plate (2-3) of the translation adjusting device (2) is fixed on the flat plate (1-9) of the rotation adjusting device (1) by bolts. Two slide rods (2-5) are symmetrically fixed on the flat plate (2-3) through slide rod supports (2-4). A lead screw (2-13) is installed on the flat plate (2-3) through bearing seats (2-1, 2-14) at both ends, and lead screw supports (2-2) are arranged on both sides of the lead screw for enhancing support rigidity. A servo motor (same model as the rotation driving motor) is installed at one end of the flat plate (2-3) through a motor base (2-12), and the output shaft of the motor is connected with the lead screw (2-13) through an elastic coupling (2-10). An upper gasket (2-11) is arranged below the motor base (2-12) for accurately adjusting the height of the motor and ensuring the centration. A slide block (2-15) is engaged with the lead screw (2-13) and the two slide rods (2-5) simultaneously. A nozzle lower base (2-6) is fixedly connected with the slide block (2-15) through a nozzle connecting piece (2-8). A multi-jet nozzle body (2-7) is installed in the nozzle lower base (2-6) and is tightly fixed by a nozzle upper cover (2-9). In order to further enhance the stability, a nozzle fixing plate (2-16) is arranged outside the nozzle, one end of the nozzle fixing plate is connected with the slide block (2-15), and the other end of the nozzle fixing plate covers the nozzle. When the servo motor drives the lead screw (2-13) to rotate, the slide block (2-15) drives the nozzle body to move linearly along the slide rod (2-5).

[0018] The multi-jet nozzle body (2-7) is internally processed with three independent fluid channels, and the inlet of each channel can be connected with an external liquid supply pipeline, and the outlet is a precision nozzle. Each channel is controlled by a normally closed two-position two-way electromagnetic valve (optional FESTO or SMC brand) to control the on-off state, and all the electromagnetic valves are electrically connected with an integrated control module.

[0019] The integrated control module adopts a Siemens S7-1200 series PLC as a control core, and is provided with a touch screen as a human-machine interface (HMI). The PLC communicates with the drivers of the two servo motors through a PROFINET bus, sends control instructions and receives encoder feedback data, and constitutes a closed-loop position control. At the same time, the digital output points of the PLC control the power-on and power-off of the three electromagnetic valves.

[0020] The working process of the application is as follows: 1. The operator sets the target translation position (such as 100 mm), the target rotation angle (such as 45°) and the spraying mode (such as alternating spraying of channel 1 and channel 3) through the HMI. 2. The PLC first controls the translation driving servo motor to run, drives the nozzle to move to the target position. The motor encoder feedbacks the position information in real time, and the PLC compares and stops when the target position is reached. 3. Then, the PLC controls the rotation driving servo motor to operate, and drives the nozzle to rotate to the target angle. The precise positioning is achieved by the feedback of the encoder. 4. After the positioning is completed, the PLC controls the corresponding electromagnetic valve to open or close according to the set spraying mode, and performs the spraying operation. 5. After the operation is completed, the PLC controls the electromagnetic valve to close, and controls the two servo motors to return to the initial zero position.

[0021] It should be noted that the above examples are only used to fully illustrate the technical content of the present application, and are not used to limit the protection scope of the present application. The protection scope of the present application is determined by the appended claims. After understanding the core idea of the present application, those skilled in the art can make changes and modifications to the servo motor model, the transmission component type, the number of jet channels, and the specific selection of the control module without departing from the spirit and scope of the present application. These changes and modifications fall within the protection scope of the present application.

Claims

1. A motor driven multi-jet nozzle translation-rotation adjustment device, characterized by: The device comprises a rotation adjusting device (1), a translation adjusting device (2), a multi-jet nozzle body and an integrated control module. The rotation adjusting device (1) is used to realize the rotary motion of the multi-jet nozzle body, and comprises a lower supporting flat plate (1-5), a screw assembly (1-4) and two parallel slide rods (1-8) mounted on the lower supporting flat plate (1-5), a sliding block (1-3) engaged with the screw assembly (1-4), and a flat plate (1-9) connected with the sliding block (1-3) through a sliding block connecting piece (1-6), which is sleeved on the slide rods (1-8) and can slide along the slide rods (1-8). The translation adjusting device (2) is mounted on the flat plate (1-9) and used to realize the linear motion of the multi-jet nozzle body, and comprises a flat plate (2-3), a screw (2-13) and two parallel slide rods (2-5) mounted on the flat plate (2-3), a sliding block (2-15) engaged with the screw (2-13), and a nozzle lower base (2-6) connected with the sliding block (2-15) through a nozzle connecting piece (2-8), wherein the multi-jet nozzle body is mounted on the nozzle lower base (2-6). The integrated control module is electrically connected with the servo motors in the rotation adjusting device (1) and the translation adjusting device (2) and used to control the operation thereof.

2. The apparatus of claim 1, wherein: The rotation adjusting device (1) further comprises a rotary drive servo motor used to drive the screw assembly (1-4), which is connected with one end of the screw assembly (1-4) through a coupling; and the slide rods (1-8) are fixed through slide rod fixing bases (1-7) symmetrically arranged on both sides of the lower supporting flat plate (1-5).

3. The apparatus of claim 2, wherein: The screw assembly (1-4) of the rotation adjusting device (1) is further sleeved with a screw connecting piece (1-1) for enhancing stability at the end close to the motor; and the flat plate (1-9) is detachably connected with the sliding block connecting piece (1-6) through a flat plate connecting piece (1-2).

4. The apparatus of claim 2, wherein: The rotary drive servo motor is provided with an encoder, and forms a closed-loop control system with the integrated control module, so that the rotation adjusting device (1) can be steplessly adjusted within a range of 0-120°, and the rotation angle deviation is not greater than ±0.5°.

5. The apparatus of claim 1, wherein: The translation adjusting device (2) further comprises a translation drive servo motor used to drive the screw (2-13), which is connected with one end of the screw (2-13) through an elastic coupling (2-10); the screw (2-13) is supported through bearing seats (2-1, 2-14) at both ends thereof, and further provided with screw supporting pieces (2-2) fixed with the flat plate (2-3) at both sides thereof; and the slide rods (2-5) are fixed on the flat plate (2-3) through symmetrically arranged slide rod supporting pieces (2-4).

6. The apparatus of claim 5, wherein: The translation drive servo motor is mounted on the flat plate (2-3) through a motor base (2-12), and an upper gasket (2-11) for adjusting the installation height is arranged between the motor base (2-12) and the flat plate (2-3), so as to ensure that the motor is coaxial with the screw (2-13).

7. The apparatus of claim 5, wherein: The translation driving servo motor is provided with an encoder and an integrated control module to form a closed loop control system, so that the translation adjusting device (2) can be steplessly adjusted within a range of 50-180 mm, and the translation positioning accuracy is not greater than ±0.05 mm.

8. The apparatus of claim 1, wherein: The multi-jet nozzle body is fixed through a nozzle lower base (2-6) and a nozzle upper cover (2-9), and is further sleeved with a nozzle fixing plate (2-16) connected with a sliding block (2-15); the multi-jet nozzle body is internally provided with three independent jet channels, and each channel is connected with an electromagnetic valve controlled by the integrated control module, so as to realize single-channel independent spraying, multi-channel synchronous spraying or alternate spraying.

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