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1. Overview of equipment

The fully automatic robotic arm multi-slot ultrasonic cleaning machine is a high-end industrial cleaning equipment that integrates industrial robot technology, multi-slot segmented cleaning technology and ultrasonic precision cleaning technology. Through a set of precise robotic arm systems, it automatically completes the transfer, positioning and cleaning operations of workpieces between multiple cleaning tanks, and realizes the automation of the whole process from coarse washing, fine washing, rinsing to drying, greatly improving the cleaning efficiency, consistency and reliability, and reducing manual intervention. It is the principle of modern precision industrial cleaning. Think of a solution.

2. Core working principle

The work of the equipment is based on the principle of "process dispersion and process concentration", and the whole cleaning process is decomposed into multiple independent physical or chemical processing steps and completed in different tanks.

1. Loading: The operator places the workpiece to be cleaned in a special cleaning basket or tooling fixture and fixes it in the loading area.

2. Robotic arm grab: The six-axis/four-axis industrial robot (robotic arm) with preset program moves accurately to the upper material position and grabs the cleaning basket through the customized gripper (manipulator).

3. Multi-slot automatic cleaning: The robotic arm immerses the cleaning basket into different troughs in turn according to the preset program, and performs specific actions (such as swinging and rotation) to ensure that there are no dead corners in the cleaning.

· Slot 1: Ultrasonic coarse cleaning tank: the main purpose is to remove a large amount of grease, heavy oil and particles on the surface of the workpiece. Strong ultrasonic power and alkaline or emulsified cleaning agents are usually used.

· Slot 2: Ultrasonic cleaning tank: further remove residual slight oil stains and impurities, and carry out deep cleaning. Use a cleaner with higher purity or different detergents.

· Slot position 3~n: Rinsing tank (optional 1-3): Use pure water or deionized water to rinse the workpiece and thoroughly remove the residual cleaning agent on the surface of the workpiece. Multi-stage overflow rinsing can ensure the cleanliness of the rinsing water.

· Tank position n+1: dehydration/slow-pull drying tank (optional): use hot water to rinse or use the principle of surface tension to remove most of the water.

· Slot n+2: Hot air drying tank: Through built-in heaters, high-efficiency fans and HEPA filters, clean hot air is generated to dry all residual moisture on the surface of the workpiece and achieve complete drying.

4. Umming: The robotic arm transports the cleaned and dried workpiece basket to the unloading area, and the operator removes it to complete the whole cleaning cycle.

3. Core components and structures

Component name, function and description

1. The robotic arm system usually adopts six-axis industrial robots, which are highly flexible and can perform complex three-dimensional movements. Customized gantry or four-axis servo manipulators can also be used according to demand. Responsible for the precise transfer of workpieces between all tanks and workstations.

2. The cleaning tank is usually made of high-quality SUS304 or SUS316 stainless steel, which is corrosion-resistant. Each tank is independently heated, temperature-controlled, and equipped with an overflow device. The number of tanks can be customized according to the process (commonly 3-6 grooves).

3. Ultrasonic system A piezoelectric ceramic ultrasonic transducer is installed at the bottom or side of each cleaning tank, which is driven by an independent ultrasonic generator. The frequency can be selected (commonly 25KHz, 28KHz, 40KHz), and the power can be adjusted to adapt to different workpieces.

4. Filtration system Rough washing and fine washing tanks are usually equipped with a circulating filtration system (pump + filter), which can continuously filter the suspended pollutants in the cleaning solution and extend the service life of the cleaning solution.

5. Drying system The hot air drying tank has a built-in high-efficiency electric heating tube, centrifugal fan and air filter to ensure that clean hot air is blown out and avoid secondary pollution.

6. Automatic cover plate Each tank is equipped with a pneumatic or electric automatic opening/closing cover plate to reduce the evaporation of cleaning liquid, maintain the workshop environment, and play the role of sound insulation and noise reduction during ultrasonic work.

7. Control system Core brain. PLC (Programmable Logic Controller) + Color Touch Screen (HMI) is usually used. Users can easily set and store a variety of cleaning programs (robot arm path, working time of each slot, temperature, ultrasonic power, etc.).

8. The safety system includes emergency stop button, grating safety protection, leakage protection, overheating protection, liquid level sensor, etc., to ensure the safety of man-machine and equipment.

4. Typical technical parameters (examples)

Project Parameter Example/Description

External size about L4000 x W1500 x H2000 mm (specifically varies depending on the number of slots)

Tank capacity Single tank volume: ranging from 50L to 200L

Ultrasonic power 600W - 2000W adjustable per slot

Ultrasonic frequency 25KHz, 28KHz, 40KHz optional (each slot can be different)

Heating power 3KW - 6KW per tank

Temperature range Room temperature - 80°C (special can be up to 90°C)

Drying method Hot air drying (temperature adjustable)

Robotic arm load 5kg - 20kg

Power supply AC380V / 50Hz (three-phase four-wire system)

Air pressure 0.5 - 0.7 MPa

5. Application field

This equipment is suitable for precision workpieces with extremely high cleanliness requirements and requiring batch processing:

· Automotive industry: engine parts, oil pump nozzles, brake system parts, gearbox parts.

· Aerospace: hydraulic components, aeronautical connectors, precision bearings.

· Electronics industry: semiconductor silicon wafers, PCB boards, electronic connectors, magnetic materials.

· Optical industry: lenses, filters, optical prisms.

6. Operation process (simplification)

1. Preparation: Add an appropriate amount of cleaning liquid, rinse water and pure water to each tank.

2. Loading: Put the workpiece into the cleaning basket and place it on the loading position.

3. Select the program: Select the preset cleaning program on the touch screen (such as "precision bearing cleaning program").

4. Start: Press the start button, the device will run automatically, and the protective door will be closed.

5. Automatic operation: The robotic arm automatically completes the cleaning and drying process of all slots according to the program.

6. Umming: After the equipment alarm prompt is completed, the operator takes out the clean and dry workpiece from the unloading area.

7. Maintenance: Regularly replace the cleaning solution, clean up the dirt at the bottom of the tank, and check the filter.

7. Advantages and characteristics of equipment

· Ultra-high cleaning consistency: fully automated to eliminate human factors to ensure that the cleaning effect of each batch of workpieces is exactly the same.

· High-efficiency productivity: can be operated continuously for 24 hours, with a short cleaning cycle and large throughput.

· Excellent cleaning effect: multi-process combination (ultrasonic + spraying + rinsing + drying) ensures that the inner and outer surfaces, blind holes and gaps of complex workpieces can be thoroughly cleaned.

· Significantly save costs: reduce labor input, extend the life of the cleaning solution through the filtration circulation system, and reduce the cost of consumables.

· Safety and environmental protection: The equipment is usually designed in a closed style, equipped with a cover plate, which can effectively prevent the evaporation of cleaning liquid and improve the working environment. Optional waste liquid treatment unit.

· Strong flexibility: By replacing the robotic arm grip and modifying the PLC program, it can quickly adapt to the cleaning needs of workpieces of different shapes and sizes.

· Process traceability: The PLC system can record and store all operating parameters to meet the strict requirements of quality traceability in aerospace and other industries.