Bearing cleanliness is an important assessment index of bearing quality, which must be guaranteed by the cleaning quality in the production process. The improvement of cleaning quality requires not only strict production management, but also the application of advanced cleaning technology to meet the cleaning requirements of products. At present, in the bearing industry, the main way of bearing cleaning is spray cleaning with gasoline or kerosene as the cleaning medium. This method not only has high cost, high labor intensity, low production efficiency, but also poor safety. More importantly, this cleaning method is difficult to meet the standard of bearing cleanliness requirements. Seeking a safer, more economical and more efficient cleaning method is of great significance to the cleaning of bearing finished products.

軸承零件的常規(guī)清洗方法有刷洗、浸洗、噴淋清洗或高壓噴洗等，相關(guān)的因素主要是有清洗液的性能及使用要求、工件的結(jié)構(gòu)、尺寸、重量和材料以及批量大小、清洗作業(yè)場所的勞動安全及環(huán)保要求等。但對清潔度要求甚高的軸承而言，這些清洗方法的效果都不夠理想，而超聲波清洗作為一種優(yōu)良的新工藝，已在軸承行業(yè)越來越得到重視。

The conventional cleaning methods of bearing parts include brushing, immersion, spray cleaning or high-pressure spray cleaning. The relevant factors are mainly the performance and use requirements of cleaning fluid, the structure, size, weight, material and batch size of workpiece, labor safety and environmental protection requirements of cleaning workplace, etc. However, for bearings with high cleanliness requirements, the effect of these cleaning methods is not ideal, and ultrasonic cleaning, as an excellent new process, has been paid more and more attention in the bearing industry.

滾動軸承的清潔度對它的振動、嗓聲、異音和使用壽命有很大影響。尤其在小型低嗓聲深溝球軸承的生產(chǎn)中，提高清潔度是解決軸承嗓聲、異音的關(guān)鍵之一，所以清洗工序是十分重要的一環(huán)。軸承清洗在生產(chǎn)過程中一般分為兩步即在裝配前的零件(套圈、鋼球、保持器等)清洗和裝配鉚合后的成品清洗。 決定清洗效果的三要素：清洗介質(zhì)(清洗液)、清洗工藝和清洗裝置。

The cleanliness of rolling bearing has a great influence on its vibration, noise, abnormal sound and service life. Especially in the production of small low noise deep groove ball bearings, improving cleanliness is one of the keys to solve the bearing noise and abnormal sound, so the cleaning process is a very important link. Bearing cleaning is generally divided into two steps in the production process, that is, the cleaning of parts (ferrule, steel ball, retainer, etc.) before assembly and the cleaning of finished products after assembly riveting. Three factors that determine the cleaning effect: cleaning medium (cleaning solution), cleaning process and cleaning device.

就軸承成品清洗工藝和清洗裝置，基于清洗系統(tǒng)設(shè)計基礎(chǔ)和實(shí)際需求,確定了以超聲波清洗和噴淋清洗為清洗方式的軸承成品典型清洗工藝流程:退磁→初噴淋→超聲波清洗→精噴淋→風(fēng)刀吹凈→二次吹凈→熱風(fēng)烘干。

Based on the design basis and actual requirements of the cleaning system, the typical cleaning process of bearing finished products by ultrasonic cleaning and spray cleaning is determined: demagnetization → primary spraying → ultrasonic cleaning → fine spraying → air knife blowing → secondary blowing → hot air drying.

根據(jù)清洗工藝流程,清洗裝置的機(jī)械結(jié)構(gòu)設(shè)計采用機(jī)械臂手由PLC的控制系統(tǒng),實(shí)現(xiàn)了裝置的手動及全自動控制，不需要隨軸承大小改變作調(diào)整的定位裝置,實(shí)現(xiàn)準(zhǔn)確定位。在超聲清洗、精噴淋和二次吹凈三個主要的清洗工位,設(shè)計了旋轉(zhuǎn)機(jī)構(gòu),保證了清洗的充分性。

According to the cleaning process, the mechanical structure design of the cleaning device adopts the manipulator and the PLC control system to realize the manual and full-automatic control of the device. There is no need to adjust the positioning device with the change of bearing size to realize accurate positioning. In the three main cleaning stations of ultrasonic cleaning, fine spraying and secondary blowing, a rotating mechanism is designed to ensure the sufficiency of cleaning.

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