本文選題：分選機　切入點：滾子件　出處：《大連交通大學》2013年碩士論文　論文類型：學位論文

【摘要】：滾針、滾柱、滾子等圓柱狀零件應用于軸承和機床等機械零件和機械設備,尤其在圓柱狀磁性材料領域也有廣泛的應用。滾子件種類繁多,長度參差不齊,在保證滾子件制造技術前提下,合理有效的檢測分選方式顯得尤為重要。 手工檢測是應用時間最長也是最普遍的方法,該方法受客觀因素影響較大,費時費力,檢測效率低,誤檢率高,工人勞動強度大,尤其是近幾年,隨著材料成本和人工成本的迅速增加,傳統(tǒng)的測量方法很難滿足現(xiàn)代生產的需要。圓柱滾子件的檢測已經成為圓柱件自動生產檢測的薄弱環(huán)節(jié),積極開展對圓柱滾子件的自動檢測分選系統(tǒng)關鍵技術的研究具有重要的理論與應用研究價值。 本課題根據(jù)用戶需求在保證0.02mm精度的前提下將滾子件按長度尺寸等級分選,采用同步可控式自動上料、自動分選機構,大大提高了分選精度和檢測效率。轉盤式送料定位一體式設計,降低了設備的機構復雜度,可以使分選效率滿足120-200個/分的要求,能達到準確、快速分選目的。研究內容為以下幾個方面： 分選機結構：該機主要結構由上料機構、送料機構、測量機構、落料機構四部分組成。在總結現(xiàn)有分選機測量范圍小、速度慢的缺點后,本文提出轉盤式送料定位一體化設計,優(yōu)化分選機構的同時提高了工作效率。 測量工藝：當待測件被送料圓盤送至位移傳感器下時,由氣動滑臺帶著位移傳感器下移,到達最低位置后,碰觸到被測件,在由控制中心對傳感器的數(shù)據(jù)進行讀取,讀取完成后氣動滑臺回移,完成一次周期,等待下個被測工件。 PLC控制與可視化設計：該分選機由步科MT4404T觸摸屏連接歐姆龍PLC控制器實現(xiàn)自動控制。在觸摸屏界面內可以設定長度參數(shù)、自動模式、手動模式等�？梢暬脑O計讓操作簡單易懂,手動模式讓調試更加便捷,自動模式讓整個過程智能化、人性化。 誤差分析及有限元分析：對檢測過程中所產生的誤差進行分析,提出有效解決方案。對測量工作臺進行靜力學分析與動力學分析,計算其應力、形變以及固有頻率。 根據(jù)以上方案研制的圓柱滾子長度自動分選機,將直徑在Φ4—Φ6之間,長度在22到30之間的圓柱滾子件分成五組,分選效率為150個/分,精度大于0.02mm經檢測分選速度、精度均能達到用戶要求。
[Abstract]:Cylindrical parts such as roller, roller and roller are used in mechanical parts and mechanical equipment such as bearings and machine tools, especially in the field of cylindrical magnetic materials. On the premise of ensuring the manufacturing technology of roller parts, reasonable and effective inspection and sorting method is particularly important. Manual detection is the longest and most common method in application. This method is greatly influenced by objective factors, time-consuming and laborious, low detection efficiency, high false detection rate, high labor intensity of workers, especially in recent years. With the rapid increase of material cost and labor cost, traditional measuring methods are difficult to meet the needs of modern production. It is of great theoretical and practical value to study the key technologies of automatic detection and sorting system for cylindrical roller parts. According to the needs of users, the roller parts are sorted according to the length and size grade under the premise of 0.02mm precision, and the synchronous and controllable automatic feeding mechanism is adopted, and the automatic sorting mechanism is adopted. The separation accuracy and detection efficiency are greatly improved. The integrated design of rotary feed positioning reduces the complexity of the equipment, and can make the separation efficiency meet the requirements of 120-200 / min and achieve accuracy. The purpose of rapid sorting. The research contents are as follows:. Separator structure: the main structure of this machine is composed of four parts: feeding mechanism, feeding mechanism, measuring mechanism and blanking mechanism. In this paper, the integrated design of rotary disc feeding and positioning is put forward, which optimizes the sorting mechanism and improves the working efficiency at the same time. Measuring technology: when the test piece is sent to the displacement sensor by the feed disc, the pneumatic slider moves down with the displacement sensor, after reaching the lowest position, the measured piece is touched, and the data of the sensor is read by the control center. After reading, the slider moves back, completes a cycle and waits for the next workpiece to be tested. PLC control and visual design: the sorting machine is automatically controlled by OMRON PLC controller connected with MT4404T touch screen. The length parameter can be set and the automatic mode can be set in the touch screen interface. Visual design makes operation easy to understand, manual mode makes debugging more convenient, automatic mode makes the whole process intelligent and humanized. Error analysis and finite element analysis: the error produced in the process of testing is analyzed, and an effective solution is put forward. The static and dynamic analysis of the measuring table is carried out to calculate its stress, deformation and natural frequency. According to the above scheme, the cylindrical roller length automatic sorting machine is developed. The cylindrical roller parts whose diameter is between 桅 4- 桅 6 and length between 22 and 30 are divided into five groups. The sorting efficiency is 150 / min and the precision is more than 0.02 mm. The precision can reach the user's request.
【學位授予單位】：大連交通大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TH133.3

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本文編號：1573102