The washing machine door opening and closing life testing machine is mainly used to test the durability of door bodies, drawers, and door hinges. Through continuous door opening and closing tests, the quality and reliability of the door body and hinges are tested. It is commonly used in various types of washing machine products on the market. The testing machine uses a servo stepper motor as the driving source to drive the fixture to perform reciprocating rotation motion, thereby completing the reciprocating life action of "opening and closing" the cabinet door. Through PLC control and flexible and variable fixtures, it truly simulates the action of manual door opening and closing. Use a linear module to conduct rapid popping and pulling tests on drawers. The device has strong universality, simple operation, convenient control, and low failure rate

Specifically designed for "washer door switch life" tests, this is a very specific and important reliability test item. The following a detailed description of the test equipment, standards, methods, and purposes.

I. Core test equipment: Washing machine door lid life testing machine

This is an automated specifically designed to simulate the user's action of opening and closing the washing machine door lid (or hatch).

Equipment Main Components:

Mechanical Actuator Mechanical arm or pneumatic/servo drive device: This is the core of the equipment, which is used to perform the door opening and closing action. It can precisely control the, speed, and force of door opening and closing.

Fixture: Used to adapt and fix the door handles of different models and sizes of washing machines.

Control: Programmable Logic Controller (PLC) and Touch Screen Human Machine Interface (HMI): Used to set test parameters, such as:

Test cycles: The target number cycles, usually tens of thousands to over a hundred thousand times.

Door opening and closing speed: Simulate the speed of normal use.

Stroke angle: the angle of full opening and closing according to the washing machine design.

Intermittent time: Set the holding time in the state of door opening and closing.

Counting and Monitoring System: High-precision counter: Real-time record the number of door opening and closing cycles that have been completed.

Fault detection system: May current sensors or displacement sensors. If the door encounters abnormal resistance during closing (simulating the door catching clothes) or cannot be locked normally, the equipment can detect and record a fault shutdown.

Frame structure: A sturdy frame used to fix the tested washing machine.

Equipment Working Principle:

The equipment repeats the cycle of "Open the door → Keep the door open for a period of time → Close the door → Keep the door closed for a period of time" through program control of the mechanical arm. The counter records the number of cycles until it reaches the preset value or the door lid has a functional failure.