Endurance bench for doors and windows

THE SOLUTION PROVIDED BY LF TECHNOLOGIES

Main functions

Objective

Carry out endurance tests on all types of joinery and openings in accordance with standard NF EN 1191 (Windows and doors – Resistance to repeated opening and closing).

Issues

The test rig must be mobile (easily transportable) and enable tests to be carried out on existing steel gantries.

Solution and Result

The test bench consists of :

• 1 base mounted on legs with retractable wheels for transporting the bench
• 1 rotary axis for sash actuation (cycling)
• 1 linear axis for sash actuation (cycling)
• 1 rotary axis and 1 linear axis for hardware operation (cycling)
• 1 motorized vertical adjustment spindle
• 1 manual adjustment of axis orientation and position
• 1 control software

Closing device actuators

The rotary actuator is used to operate the handles. It features torque and displacement measurement, and can be controlled for position, speed and torque. The linear actuator is used to operate the bay locks. It features force and displacement measurement and can be controlled for position, speed and force.

Control

The software controlling the endurance bench is easy to use and intuitive. Automatic test scenarios can be programmed. Characteristic values for each cycle (cycle no., max. force, min. force, average force, position, etc.) and all force/displacement curves are saved in a dedicated file.

This mechanical endurance test bench carries out “type” tests, to check that the products under test have all the assigned characteristics specified for them. This bench is used in many test laboratories to test the fatigue life of products before they go to market.