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    • 65. 发明专利
    • Machine tool
    • 机床
    • JP2008093738A
    • 2008-04-24
    • JP2006274427
    • 2006-10-05
    • Okuma Corpオークマ株式会社
    • YANOHARA NAOMITSU
    • B23Q11/14B23Q11/12
    • F16C33/6625Y10T409/108745Y10T409/303976Y10T409/304032Y10T409/309352
    • PROBLEM TO BE SOLVED: To provide a machine tool which can perform an appropriate warm-up operation for a spindle condition, does not uselessly increase a warm-up operation time before machining, and does not damage bearings due to the warm-up operation. SOLUTION: A control part 7 stores a supply amount of the lubricant into bearings 4, 4, , and the rotational speed of the spindle 2 in a memory part 22 as the time-series data. When starting to rotate the spindle 2, the control part 7 calculates a residual amount of lubricant in the bearings 4, 4, , by using the time-series data stored in the memory part 22, determines whether or not the warm-up operation is required based on the residual amount of lubricant, and controls the rotational speed at the time of starting of the spindle 2 according to the determination result. Therefore, necessity of the warm-up operation can be accurately determined, the machining efficiency is not deteriorated by the useless warm-up operation before machining, and an efficient machining can be performed. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供一种可以对主轴状态进行适当的预热操作的机床,在加工之前不会无意中增加预热操作时间,并且不会由于暖机操作而损坏轴承, up操作。 解决方案:控制部分7将润滑剂的供给量存储到轴承4,4和作为时间序列数据的存储器部分22中的主轴2的旋转速度。 当开始旋转主轴2时,控制部分7通过使用存储在存储器部分22中的时间序列数据来计算轴承4,4中的润滑剂剩余量,确定预热操作是否为 根据确定结果控制主轴2启动时的转速。 因此,可以准确地确定预热操作的必要性,加工前的无用预热操作的加工效率不会降低,并且可以进行有效的加工。 版权所有(C)2008,JPO&INPIT
    • 68. 发明申请
    • MACHINE TOOL
    • 机床
    • US20080083585A1
    • 2008-04-10
    • US11867057
    • 2007-10-04
    • Naomitsu YANOHARA
    • Naomitsu YANOHARA
    • F01M9/00
    • F16C33/6625Y10T409/108745Y10T409/303976Y10T409/304032Y10T409/309352
    • The present invention is to provide a machine tool in which appropriate warm-up operation can be performed. Unnecessary warm-up operation before machining is not carried out and damage of bearings caused by the warm-up operation is prevented. A controlling unit 7 stores data of a supply amount of lubricant to bearings 4 and a rotation speed of a main spindle 2 in a memory unit 22 as time-series data. When rotation of the main spindle 2 is started, the time-series data stored in the memory unit 22 is used to calculate an amount of remaining lubricant in the bearings 4 and determination of necessity of warm-up operation is made based upon the stored data. A rotation speed at a start-up time of the main spindle is controlled according to the determination result.
    • 本发明提供一种可以进行适当的预热操作的机床。 不进行加工前的不必要的预热操作,并且防止由预热操作引起的轴承损坏。 控制单元7将作为轴承4的润滑剂的供给量和主轴2的转速的数据作为时间序列数据存储在存储单元22中。 当主轴2的旋转开始时,存储在存储单元22中的时间序列数据用于计算轴承4中剩余润滑剂的量,并且基于所存储的数据确定预热操作的必要性 。 根据确定结果控制主轴启动时的转速。