Multi-angle grinding device for metal keyboard shell of computer keyboard

Abstract

The invention relates to the field of keyboard shell processing, in particular to a multi-angle grinding device for a metal keyboard shell of a computer keyboard. The multi-angle grinding device comprises a grinding motor, a rack, an expansion airbag, polishing abrasive cloth, an air pump and a positioning pipe, wherein the positioning pipe is positioned on the inner wall of the expansion airbag; air holes are formed in the middle section of the positioning pipe, and discs are separately arranged at two ends of the positioning pipe; two arc-shaped plates are arranged at one sides of the two discs separately, two ends of the two arc-shaped plates are detachably connected through bolts, each arc-shaped plate is connected with the disc at the corresponding position through a guide part, and the arc-shaped plates can be spliced into a ring body; two lantern rings are arranged on the outer surface of the positioning pipe, and two ends of the positioning pipe are in coupling fit with the rack separately; a main shaft of the grinding motor is in transmission connection with the positioning pipe; and the positioning pipe communicates with the air pump. According to the multi-angle grinding device, the polishing abrasive cloth is convenient to remove and replace, the whole machine is convenient to maintain, and meanwhile, the characteristic that the keyboard shell can be ground at multiple angles is kept.

Description

technical field [0001] The invention relates to the field of keyboard shell processing, in particular to a multi-angle grinding device for metal keyboard shells of computer keyboards. Background technique [0002] Existing mechanical keyboard cases are generally metal keyboard cases, and the keyboard case needs to be polished before painting the keyboard case. The traditional method is to manually polish the keyboard case with hand-held sandpaper, which is labor-intensive and labor-intensive. It is low processing efficiency. [0003] According to the above problems, Chinese patent was retrieved: publication number: CN110026857B, a multi-angle grinding device for computer keyboard metal keyboard shells, including a base, the upper part of the base is fixedly installed with a frame, and a mechanical arm with multiple degrees of freedom is installed on the frame , the lower end of the mechanical arm is fixedly installed with a horizontal plate, and the bottom of the horizontal...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned patent can replace the manual automatic polishing of the keyboard shell, but there are still the following problems. First, the patent does not specify the connection relationship between the airbag and the polishing abrasive cloth, but only discloses that the outer ring of the annular airbag is fixed and polished. Emery cloth', and from all the drawings of the patent, there is no specific connection between the air bag and the polishing emery cloth, which means that the relationship between the two is strongly bound together, then, since the polishing emery cloth is The consumables that touch the workpiece need to be replaced according to the frequency of use, otherwise it will affect the polishing quality of the subsequent workpiece. Therefore, from the above structure, the two are fixed together, and the polishing abrasive cloth needs to be removed forcibly, and try to re- Install it on the airbag; if the airbag itself is a matching product with the polishing abrasive cloth, the manufacturing cost of this kind of polishing abrasive cloth will be too high, and the manufacturing process will increase, which is low for the airbag.

[0005] In addition, the expansion medium of the air bag is provided by the double output shaft motor, but the double output shaft motor is mainly used to drive the annular air bag, that is, the main shaft rotates, to provide the rotational force during grinding, and then the rotational force is indirectly complexed by the spiral piece Therefore, the air pressure in the airbag is not constant, it may be too large or too small, which is not conducive to the normal operation of the airbag, because during the rotation of the airbag, the abrasive cloth on the outer surface contacts the workpiece, which has real-time air pressure loss. , the control of the speed ratio between the expansion of the airbag and the rotation of the main shaft is difficult to maintain balance, and the coupling between the two is too high, which is not conducive to the precision of grinding

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