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1.发明申请公开(公告)号：US20180169819A1
公开(公告)日：2018-06-21
申请号：US15735267
申请日：2016-06-13
发明人： Erwin Junker
CPC分类号： B24B5/12 , B24B41/062
摘要： A method and a grinding machine to implement the method includes, in a single clamping, a machine part is ground. The part is clamped on its ends and has an internal recess for grinding. The internal recess is ground with an internal grinding wheel, wherein the part is rotated between a workpiece headstock and a tailstock, and an external contour is ground by means of a grinding wheel. The part is held on the tailstock by a hollow tailstock sleeve, on the end region of the internal recess, and the internal grinding wheel passes through the hollow tailstock sleeve during grinding. In the grinding machine, a separate grinding spindle head carrying the internal grinding wheel can be included in the region of the tailstock, and can be advanced against the peripheral surface of the internal recess by passing through the hollow tailstock sleeve and the hollow center.
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公开(公告)号：US20170368657A1
公开(公告)日：2017-12-28
申请号：US15533846
申请日：2015-12-08
发明人： Erwin Junker
摘要： The present invention relates to a measuring steady rest which has a device for supporting central workpiece regions, in particular, bearing points on shaft parts, in particular crankshafts, and a measurement device integrated therein for directly adjusting the measurement of the workpiece regions before and/or during machining of the shaft parts. The measuring steady rest is preferably designed in the form of a prism, the measurement device being arranged on the bottom of the prism between the lateral flanks of the prism. The present invention further relates to a grinding machine comprising such a measuring steady rest, and to a method for supporting and measuring central workpiece regions on such a grinding machine comprising such a measuring steady rest.
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公开(公告)号：US20170252886A1
公开(公告)日：2017-09-07
申请号：US15117535
申请日：2015-02-13
发明人： Erwin Junker
CPC分类号： B24B5/01 , B24B5/04 , B24B5/06 , B24B27/0061 , B24B41/067
摘要： A grinding machine for machining workpieces includes a workpiece headstock and two grinding headstocks. A first grinding headstock has two grinding spindles each with one grinding wheel for grinding first and second planar and non-planar external surfaces. A second grinding headstock has a grinding spindle having a grinding wheel for grinding a central bore in the workpiece, and a clamping device to clamp the workpiece. First, the bore and the first planar and any non-planar external surface are ground on one side of the workpiece. Then, the workpiece is clamped in the bore. The second planar external surface can then be ground in the same grinding machine with one of the grinding wheels of the first headstock. The clamping device attached to the second grinding headstock is such that the central axis of the clamping device is exactly aligned with the central axis of the workpiece headstock.
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公开(公告)号：US10532443B2
公开(公告)日：2020-01-14
申请号：US15554027
申请日：2016-03-11
发明人： Erwin Junker
摘要： A method is disclosed for grinding grooves on workpieces using a profiled grinding wheel, the profile of which is crushed. A reshaping crush process includes driven crush rollers, each being controlled on the basis of a rotational speed and current consumption. Thus, relative advancement between the grinding wheel and crush roller is controlled according to the speed and current consumption. A grinding machine is also disclosed for grinding a workpiece, wherein the workpiece is held by means of a workpiece spindle head. A crush device comprising a crush roller with a dedicated rotary drive is provided on the grinding machine. The grinding wheel is applied to the crush roller in order to dress the grinding wheel profile. The crush roller has a profile-crushing portion for profile-crushing the grinding wheel with a first dressing volume and a reshaping profile-crushing portion for profile-crushing the grinding wheel with a second dressing volume.
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公开(公告)号：US20180043503A1
公开(公告)日：2018-02-15
申请号：US15554027
申请日：2016-03-11
发明人： Erwin Junker
摘要： A method is disclosed for grinding grooves on workpieces using a profiled grinding wheel, the profile of which is crushed. A reshaping crush process includes driven crush rollers, each being controlled on the basis of a rotational speed and current consumption. Thus, relative advancement between the grinding wheel and crush roller is controlled according to the speed and current consumption. A grinding machine is also disclosed for grinding a workpiece, wherein the workpiece is held by means of a workpiece spindle head. A crush device comprising a crush roller with a dedicated rotary drive is provided on the grinding machine. The grinding wheel is applied to the crush roller in order to dress the grinding wheel profile. The crush roller has a profile-crushing portion for profile-crushing the grinding wheel with a first dressing volume and a reshaping profile-crushing portion for profile-crushing the grinding wheel with a second dressing volume.
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6.发明申请公开(公告)号：US20140325838A1
公开(公告)日：2014-11-06
申请号：US14366122
申请日：2012-12-18
发明人： Erwin Junker
CPC分类号： B23B5/18 , B23B2215/20 , B23B2270/22 , B23P15/003 , B23P2700/07 , Y10T29/49286 , Y10T82/10 , Y10T82/19
摘要： A crankshaft including narrow flat shoulders that are located next to a bearing pin at adjacent cheeks of the crankshaft. The narrow flat shoulders are machined by turning a rotary tool. In the process, the crankshaft that is clamped in a fixed manner and rotates about a rotation and clamping axis in which also the centric longitudinal axis formed by centric bearing pins of the crank shaft is located. As a result, the bearing pins rotate with a geometric axis thereof on a circular path about the rotation and clamping axis. The rotary tool tracks the moving bearing pins with regard to the vertical and lateral movement thereof in two movement directions that are perpendicular to each other. As a result, the rotary tool is in consistent lateral engagement with the flat shoulder of the bearing pin.
摘要翻译： 曲轴包括位于曲轴相邻两侧的轴承销旁的窄平肩。 通过转动旋转工具加工狭窄的平肩。 在该过程中，曲轴以固定的方式被夹紧并且围绕旋转和夹紧轴线旋转，其中也由曲轴的中心轴承销形成的中心纵向轴线位于其中。 结果，轴承销以其几何轴线在围绕旋转和夹紧轴线的圆形路径上旋转。 旋转工具相对于彼此垂直的两个运动方向的垂直和横向运动来跟踪运动的轴承销。 结果，旋转工具与轴承销的平坦肩部保持一致的横向接合。
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公开(公告)号：US10464182B2
公开(公告)日：2019-11-05
申请号：US15735267
申请日：2016-06-13
发明人： Erwin Junker
摘要： A method and a grinding machine to implement the method includes, in a single clamping, a machine part is ground. The part is clamped on its ends and has an internal recess for grinding. The internal recess is ground with an internal grinding wheel, wherein the part is rotated between a workpiece headstock and a tailstock, and an external contour is ground by means of a grinding wheel. The part is held on the tailstock by a hollow tailstock sleeve, on the end region of the internal recess, and the internal grinding wheel passes through the hollow tailstock sleeve during grinding. In the grinding machine, a separate grinding spindle head carrying the internal grinding wheel can be included in the region of the tailstock, and can be advanced against the peripheral surface of the internal recess by passing through the hollow tailstock sleeve and the hollow center.
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公开(公告)号：US10293450B2
公开(公告)日：2019-05-21
申请号：US15100462
申请日：2014-10-09
发明人： Erwin Junker
摘要： A steady rest for supporting, e.g., bearing points on shaft parts of crankshafts, during the grinding of central and/or eccentric workpiece regions. For the grinding, the steady rest is brought from a retracted position to a supporting position against the workpiece region to support the workpiece region at respective circumferential regions. The supporting parts are each arranged on a lateral flank of a prism opening in a fork-like manner on a steady-rest arm in a fixed position in relation to each other and to the steady-rest arm, the supporting parts thus forming an opening angle to each other. The supporting parts are arranged below center with respect to the longitudinal axis of the workpiece region such that an angle bisector between the two supporting parts has a fixed acute angle to the vertical extending through the longitudinal axis of the workpiece region and the CNC-controlled advancement occurs along said angle bisector. The invention relates to a grinding machine, which has a steady rest described above.
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公开(公告)号：US10058968B2
公开(公告)日：2018-08-28
申请号：US15117535
申请日：2015-02-13
发明人： Erwin Junker
CPC分类号： B24B5/01 , B24B5/04 , B24B5/06 , B24B27/0061 , B24B41/067
摘要： A grinding machine for machining workpieces includes a workpiece headstock and two grinding headstocks. A first grinding headstock has two grinding spindles each with one grinding wheel for grinding first and second planar and non-planar external surfaces. A second grinding headstock has a grinding spindle having a grinding wheel for grinding a central bore in the workpiece, and a clamping device to clamp the workpiece. First, the bore and the first planar and any non-planar external surface are ground on one side of the workpiece. Then, the workpiece is clamped in the bore. The second planar external surface can then be ground in the same grinding machine with one of the grinding wheels of the first headstock. The clamping device attached to the second grinding headstock is such that the central axis of the clamping device is exactly aligned with the central axis of the workpiece headstock.
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10.发明授权Machine and method for turning at least flat shoulders on a crankshaft that surround crankpins 有权用于在围绕曲柄架的曲轴上至少平坦地转动肩部的机器和方法公开(公告)号：US09475121B2
公开(公告)日：2016-10-25
申请号：US14366122
申请日：2012-12-18
发明人： Erwin Junker
CPC分类号： B23B5/18 , B23B2215/20 , B23B2270/22 , B23P15/003 , B23P2700/07 , Y10T29/49286 , Y10T82/10 , Y10T82/19
摘要： A crankshaft including narrow flat shoulders that are located next to a bearing pin at adjacent cheeks of the crankshaft. The narrow flat shoulders are machined by turning a rotary tool. In the process, the crankshaft that is clamped in a fixed manner and rotates about a rotation and clamping axis in which also the centric longitudinal axis formed by centric bearing pins of the crank shaft is located. As a result, the bearing pins rotate with a geometric axis thereof on a circular path about the rotation and clamping axis. The rotary tool tracks the moving bearing pins with regard to the vertical and lateral movement thereof in two movement directions that are perpendicular to each other. As a result, the rotary tool is in consistent lateral engagement with the flat shoulder of the bearing pin.
摘要翻译： 曲轴包括位于曲轴相邻两侧的轴承销旁的窄平肩。 通过转动旋转工具加工狭窄的平肩。 在该过程中，曲轴以固定的方式被夹紧并且围绕旋转和夹紧轴线旋转，其中也由曲轴的中心轴承销形成的中心纵向轴线位于其中。 结果，轴承销以其几何轴线在围绕旋转和夹紧轴线的圆形路径上旋转。 旋转工具相对于彼此垂直的两个运动方向的垂直和横向运动来跟踪运动的轴承销。 结果，旋转工具与轴承销的平坦肩部保持一致的横向接合。
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