Pressing module for testing drawing force of keycap and test machine for drawing force of keycap

Abstract

The invention discloses a pressing module for testing drawing force of a keycap and a test machine for the drawing force of the keycap. The pressing module comprises a pressing board, a pressing board cylinder, and a pressing board driver, which are connected in sequence from bottom to top, wherein the pressing board is used for pressing a keyboard; the pressing board cylinder is used for driving the pressing board to move up and down in a vertical direction; and the pressing board driver is used for driving the pressing board cylinder and the pressing board together to move in a Y-axial direction in a keyboard plane. The test machine for the drawing force of the keycap comprises: a keyboard placing device for placing and inputting a to-be-measured keyboard; a pressing module for testing drawing force of the keycap for pressing the keyboard, a drawing force measuring head module for measuring the drawing force of the pressed keycap in the keyboard; a telescoping module for hanging the measuring head module and performing interval adjustment; a substrate for fixing the telescoping module; and a driving device for driving the substrate to move along the X-axial, Y-axial, and Z-axial directions. The test machine is high in detection rate, low in misjudgement rate, good in versatility, and low in detection cost, and doesn't generate damage to a good keycap.

Description

technical field [0001] The invention relates to a testing component and testing equipment, in particular to a pressing module for testing a keycap pulling force and a keycap pulling force testing machine, belonging to the technical field of keyboard automatic testing equipment. 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 keyboa...

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

[0006] Although the method of testing the pull-out force of keyboard keycaps by machine has been more and more widely used in the prior art, the existing automatic test equipment for the pull-out force of keyboard keycaps still has complex mechanical structures, difficult maintenance, poor versatility, Defects such as low positioning accuracy

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