Ball screw anti-dust device

Abstract

The invention discloses a ball screw dustproof device which is assembled on the end face of a screw cap, and the invention orderly comprises an absorbing part, an oil scraper slice and a wiping device. The absorbing part relates to materials which can absorb liquid, and the oil scraper slice uses an oil scraper part to contact with the surface of the screw. The wiping device is provided with a tooth wiping part which is correspondingly meshed with the surface of the screw, and in addition, protuberaces are arranged between the wiping device and the oil scraper slice to cause a radial through hole to be formed by the segmentation between the wiping device and the oil scraper slice. The invention has good resistance and exclusion effects for powdered scraps and liquid, prevents the lubricating liquid from running off from the screw cap, keeps the lubricating liquid and absorbs micro cutting liquid which passes through the oil scraper slice.

Description

technical field [0001] The invention relates to an accessory related to a ball screw, in particular to a dust-proof device for a ball screw. Background technique [0002] Today's ball screw is used more and more in industry. In addition to the high-precision effect of linear feed transmission, it also has the advantages of low friction loss rate, high energy conversion rate, low noise and high rigidity. Therefore, the importance of the ball screw to various industrial application machines and tools cannot be overstated. [0003] In order to allow the balls between the screw and the nut to circulate continuously and eliminate stress, the current ball screw design has various dust-proof devices at both ends of the nut; and different designs have their defects. Therefore, how to target the anti-dust The development and improvement of dust devices to produce more competitive products has naturally become the focus of the current industry. [0004] In the past, the dust-proof d...

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Problems solved by technology

[0009] The wiper is to prevent the intrusion of foreign matter, but in order to compensate for processing errors and avoid excessive interference between the wiper and the screw, there will be a certain gap between the finished wiper and the screw, so various wipers on the market There has been no way to eliminate small dust or liquid. Therefore, when the ball screw is used in more precise machining, not only can it not prevent small iron filings from entering the nut, but the cutting fluid will gradually and continuously invade the nut, affecting the ball. The service life of the screw; although the above-mentioned types are improved wipers, although the gap can be adjusted to enhance the chip removal effect on iron filings, it still has no effect on preventing cutting fluid from entering the nut.

[0010] In order to effectively solve the above-mentioned related problems, the inventors of the present invention based on the research and development technology and experience accumulated in the field of ball screws in the past, conducted research from the perspective of preventing liquid intrusion and easy chip removal, and finally developed a brand new ball screw. Dustproof device

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