Method for detecting undesirable elastic force or drawing force of keycap of keyboard

Abstract

The present invention discloses a method for detecting the undesirable elastic force or drawing force of a keycap of a keyboard, including the steps as follows: the keyboard is pressed and held so that the keyboard is fixed; a weighing sensor with a hook on the bottom individually hangs one keycap of the keyboard to be detected for performing detection contact, the hook of the weighing sensor directly acts on any one lateral border of the keycap; a driver drives the weighing sensor to move upwards for setting a route, and the weighing sensor feeds back the modulus variation of the hook in the real time to a collecting and processing controller for collecting the real-time drawing force of the keycap; the collecting and processing controller compares the collected the real-time drawing force of the keycap with the normal drawing force and performs the judgment, and the drawing force of the keycap is judged as the undesirable drawing force when the real-time drawing force of the keycap is higher than the upper limit of the normal drawing force or is lower than the lower limit of the normal drawing force. The detection method is convenient to operate, is high in automation degree, and is suitable for the keyboard variability. The detection method has the advantages of high detection rate, low misjudgment rate, no damage to good product, low detection cost, safeness, reliability and the like.

Description

technical field [0001] The invention relates to a detection method, in particular to a detection method for detecting a keyboard keycap with poor elasticity or pulling force. Background technique [0002] Keyboards are generally assembled from aluminum substrates, circuit boards, scissor support frames, and keycaps. The main reasons for the poor elasticity or pull-out force of keyboard keycaps are currently known: 1. Bad incoming materials, such as aluminum substrates stuck Deformation of the hook, fracture of the central axis of the scissors support frame, or lack of material and collapse of the keycap structure where the inner and outer scissors are fitted, and defects in the four corners of the keycap and the fittings of the inner and outer scissors (that is, the written name is the water drop hole and the chute structure); 2. Poor assembly, such as damage to the keyboard or keycap structure due to man-made or poorly assembled mechanical equipment during the assembly proc...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, it is generally used to judge whether the pulling force can meet the requirements of use by pulling the keycap of the keyboard by hand. This detection method is highly subjective, easily leads to misjudgment, and requires a lot of manpower. The cost is high but the efficiency is high. Low, obviously unable to meet the requirements of modern industrial production

[0005] At present, mechanical equipment is generally used for automatic detection, such as: using a key brush machine, square the assembled keyboard key cap, and use a piece of flexible silicone to drop above the key cap and interfere with the contact. However, this detection method has a low detection rate. low and will cause damage to good products, etc.; or use a top key machine, place a square under the assembled keyboard keycap, install a corresponding probe directly under each key, and use the compression stroke of the probe to control the probe. The elastic force of the needle, so as to push the bad keycap out of the overall structure of the keycap, because the entire bad judgment is completed by manual visual inspection and requires obvious keycap detachment, due to the variability of the keyboard and the limited fatigue endurance of the probe, so The detection rate is also very low and the misjudgment rate is also high; or use a key suction machine, use a suction cup above each keycap to contact the surface of the keycap with sufficient vacuum, thereby generating suction and pulling the key upwards Cap, because the force of the suction cup is vertical upward, and the single-leg keycap with poor structure, its vertical pulling force is normal, so the detection force will be greatly reduced, and the variability and diversity of the keyboard, resulting in equipment replacement and maintenance High cost

Images