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公开(公告)号：US4531327A
公开(公告)日：1985-07-30
申请号：US488239
申请日：1983-04-25
摘要： A centerless grinding machine is provided with a ferris wheel arrangement having multiple, circumferential pockets in which an annular workpiece is received from a loading chute, is internally ground by a grinding wheel and is discharged into an unloading chute after grinding by indexed rotation of the ferris wheel. The grinding machine includes a stationary alignment shoe cooperating with an individual alignment shoe carried in each pocket of the ferris wheel. In the grinding position, the stationary shoe preferably is at the 3 o'clock position while the alignment shoe in the adjacent pocket is at the 6 o'clock position. The grinding wheel is positioned on one side of the ferris wheel and a workpiece driver means is positioned on the opposite side. With the inventive grinding machine, annular workpieces, such as bearing raceways, can be loaded, ground and unloaded in rapid succession with high accuracy maintained during grinding.
摘要翻译： 无心研磨机设置有摩擦轮装置，其具有多个周向袋，其中环形工件从加载滑槽接收，由砂轮内部磨碎，并且通过摩擦片的指数旋转而被磨碎后排出到卸载滑槽中 轮。 研磨机包括与在摩天轮的每个袋中承载的单个对准鞋协作的固定对准鞋。 在研磨位置，固定鞋优选地在3点钟位置，而相邻袋中的对准鞋位于6点钟位置。 砂轮定位在摩擦轮的一侧，工件驱动装置位于相对侧。 使用本发明的研磨机，可以在研磨期间以高精度快速连续地加载，研磨和卸载环形工件，例如轴承滚道。
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公开(公告)号：US4513541A
公开(公告)日：1985-04-30
申请号：US444131
申请日：1982-11-23
CPC分类号： B24B41/061 , Y10T279/23
摘要： An electromagnet is disposed between a pair of bearings rotatably mounting a spindle in the housing of a machine workhead, such as the workhead of a grinding machine. The magnetic flux from the electromagnet is guided by the spindle extending therethrough to its workpart driving end located outside the housing. Bearing shoes engaging the workpart are connected to the housing so as to complete the magnetic flux path to the electromagnet through the housing. Non-magnetic shields are disposed between the bearings and the electromagnet and housing to prevent wear debris accumulation and etching of the bearing components from magnetic flux effects.
摘要翻译： 电磁铁设置在一对轴承之间，该对轴承将主轴可旋转地安装在机床工作头的壳体中，例如研磨机的工作头。 来自电磁铁的磁通量由延伸穿过其的主轴引导到位于壳体外部的工件部分驱动端。 接合工件的轴承座连接到壳体，以便通过壳体完成到电磁铁的磁通路径。 非磁性屏蔽设置在轴承和电磁体和壳体之间，以防止磨损碎片积聚和轴承部件的腐蚀从磁通效应。
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公开(公告)号：US4612735A
公开(公告)日：1986-09-23
申请号：US659146
申请日：1984-10-09
IPC分类号： B24B41/06
CPC分类号： B24B41/06 , Y10S269/902
摘要： A workpart fixture for an unbalanced drill bit lug includes a support having a vee-shaped recess with an included angle substantially the same as vee-shaped intersecting surfaces on the drill bit lug to receive same and a fluid actuated clamp assembly carried on an arcuate slide which is movable in a circular arc path laterally relative to the drill bit lug generally about a centerline through the drill bit lug body to accommodate right or left linear or angular offset of the line of intersection of the vee-shaped lug surfaces and to optimize clamping force on the lug in the fixture. The clamp assembly includes a clamp lever which is pivotal toward and away from the drill bit lug by a fluid actuator and which carries swiveling clamp pads that seat against the drill bit lug when the clamp lever is actuated by the cylinder.
摘要翻译： 用于不平衡钻头凸耳的工件固定件包括支撑件，该支撑件具有一个具有与钻头凸耳上的vee形交叉表面基本相同的V形凹槽，以便接收它们，以及一个承载在弓形滑块上的流体致动的夹紧组件 其可以圆弧路径相对于钻头凸耳大致围绕通过钻头凸耳体的中心线移动，以适应V形凸耳表面的交叉线的右或左线性或角度偏移，并优化夹紧 在夹具上的凸耳上施力。 夹具组件包括夹紧杆，其通过流体致动器枢转并远离钻头凸耳，并且当夹具由气缸致动时，该夹持杆承载抵靠钻头凸耳的旋转夹紧垫。
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公开(公告)号：US4450651A
公开(公告)日：1984-05-29
申请号：US262233
申请日：1981-05-11
CPC分类号： B24B53/00
摘要： An interchangeable and stationary grinding wheel dressing structure mounted on a cantilevered base unit having the grinding wheel carried to it for dressing.
摘要翻译： 安装在悬臂式基座单元上的可互换和固定的砂轮修整结构，其具有运送到其上的砂轮进行修整。
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5.发明授权
公开(公告)号：US4419612A
公开(公告)日：1983-12-06
申请号：US340410
申请日：1982-01-18
CPC分类号： B24B49/00 , G05B2219/33129 , G05B2219/34287 , G05B2219/34422 , G05B2219/37473 , G05B2219/41047 , G05B2219/41255 , G05B2219/41275 , G05B2219/45159 , G05B2219/45161 , G05B2219/49382 , G05B2219/50313
摘要： An electro-mechanical control system for controlling all of the movements of one or more slides on a single workhead grinding machine. A programmable controller is interfaced with a digital to analog converter or feed control which in turn controls a drive motor that is directly connected to a screw actuator means that directly controls the movements and positions of a slide. The positioning accuracy of the control system is derived from the accuracy of the electronic control components and the stability of the machine. The control system can control the operative movements of each slide in a compound slide assembly, simultaneously or independently, for a part of a grinding machine cycle. The compound slide assembly may alternatively carry a rotating grinding wheel or a workhead that is reciprocated at high speed for a grinding operation on a workpiece.
摘要翻译： 一种机电控制系统，用于控制单个工作头研磨机上的一个或多个滑块的所有运动。 可编程控制器与数模转换器或进给控制器连接，数模转换器或进给控制器又控制直接连接到直接控制滑块的运动和位置的螺杆致动器装置的驱动马达。 控制系统的定位精度来源于电子控制部件的精度和机器的稳定性。 控制系统可以同时或独立地控制复合滑动组件中每个滑块对于一部分研磨机循环的操作运动。 复合滑动组件可以替代地携带旋转的砂轮或高速往复运动的工作头，用于对工件进行研磨操作。
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公开(公告)号：US4561218A
公开(公告)日：1985-12-31
申请号：US699707
申请日：1985-02-08
摘要： In the internal grinding of a cylindrical bore having an oil or similar groove which adversely affects the bore roundness achievable, one or more streams of liquid coolant are directed over the grinding wheel during rough grinding at a high wheel feed rate and only a mist of liquid coolant droplets suspended in a compressed air stream is directed over the wheel once the high wheel feed rate has been reduced to the lower wheel feed rate associated with finish grinding. Means are provided for terminating the liquid coolant streams at the time the wheel feed rate is changed or after a short delay period thereafter to establish equilibrium finish grind conditions. Preferably, the change from one or more liquid coolant streams to the coolant mist is made in response to a detected decrease in wheel spindle motor power.
摘要翻译： 在具有油或相似槽的圆柱形孔的内部研磨中，其对于可实现的孔圆度有不利影响，在粗轮磨削期间以一种高砂轮进给速率将一个或多个液体冷却剂流引导到砂轮上，并且只有一滴液体 一旦高轮进给速率降低到与精磨相关的下轮进给速率，悬浮在压缩空气流中的冷却剂液滴就被引导到车轮上。 提供了用于在轮进给速率改变时或之后的短延迟时间之后终止液体冷却剂流以建立平衡磨光条件的装置。 优选地，响应于检测到的主轴电机功率的降低，从一个或多个液体冷却剂流到冷却剂雾的变化。
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公开(公告)号：US4513540A
公开(公告)日：1985-04-30
申请号：US512836
申请日：1983-07-11
IPC分类号： B24B19/00 , B23Q15/14 , B24B5/06 , B24B5/14 , B24B19/06 , B24B47/10 , G05B19/416 , B24B49/00
CPC分类号： B24B19/06 , B23Q15/14 , B24B5/14 , G05B19/4163
摘要： A grinding machine is provided with a workhead support means having pivotable shaft means on which the support means is pivoted by a servomotor/pinion arrangement controlled by a programmable controller and a position indicating means on the pivotable shaft means that inputs angular shaft position signals to the controller. Adaptive control components may also be included in the control arrangement. The workhead support means is thereby pivotable to vary the angular relationship of the workpart axis to the grinding wheel axis to effect a desired taper or contour grind or to compensate for changes in grinding parameters causing out of tolerance ground workparts. Special releasable clamps are provided to fix a desired position of the workhead support means and yet release same for pivoting movement. Fluid lift mechanisms are also provided to reduce friction between the workhead support means and the adjacent machine base member during pivoting.
摘要翻译： 研磨机设置有具有可枢转轴装置的工作头支撑装置，支撑装置通过可编程控制器控制的伺服电动机/小齿轮装置枢转支撑装置，并且可枢转轴装置上的位置指示装置将角轴位置信号输入到 控制器。 自适应控制组件也可以包括在控制装置中。 因此，工件头支撑装置可枢转以改变工件轴线与磨轮轴线的角度关系，以实现期望的锥度或轮廓磨削，或者补偿磨削参数的变化，从而导致公差地面工件不合格。 提供特殊的可释放的夹具以固定工件头支撑装置的期望位置，并释放其用于枢转运动。 还提供流体提升机构以在枢转期间减少工件支撑装置和相邻的机器基座构件之间的摩擦。
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公开(公告)号：US4790545A
公开(公告)日：1988-12-13
申请号：US142549
申请日：1988-01-11
CPC分类号： B23Q17/2291 , B23Q3/183 , Y10T279/21 , Y10T279/26 , Y10T82/27
摘要： A workpart chuck is provided with a centering member that is movable toward the axis of rotation of the chuck as the chuck rotates the workpart in an eccentric non-centered position. As the centering member moves the workpart, a sensing device senses the extent of changing eccentric movement of the workpart and generates an electrical signal that is indicative of the extent of such eccentric movement. The workpart is moved toward the chuck axis until the signal reaches a predetermined value indicative that the workpart is rotating about its axis; i.e., the workpart axis and chuck axis are substantially coaxial. The centering member is offset slightly relative to the chuck axis of rotation to assure that excessive movement of the centering member placing the workpart center beyond the chuck axis of rotation will not result in the workpart being driven to an extremely eccentric position and possibly even off the face of the chuck. The sensing device will detect a sudden shift of the workpart position relative to the centering member indicative of such movement beyond center, whereupon the control system will cause the centering member to retract a small distance and advance in a new attempt to center the workpart.
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公开(公告)号：US4539778A
公开(公告)日：1985-09-10
申请号：US682632
申请日：1984-12-17
CPC分类号： B24B49/18
摘要： An improved method to surface condition a super-abrasive grinding wheel by intermittently moving the wheel to a stationary wheel conditioner unit mounted adjacent the grinding wheel with the conditioner unit having a consumable element engaged by the grinding wheel to condition the grinding wheel including a dual compensation method having the steps of grinding a predetermined number of workpieces to establish a first predetermined depth of super-abrasive wheel wear; periodically conditoning the wheel surface by consuming a second predetermined depth from a consumable reconditioning tool surface; and producing a first compensation of a grinding wheel by controlling the position of the super-abrasive wheel with respect to the workpiece to maintain an apparent wheel wear depth within the range of desired workpiece tolerance and producing a second compensation of a grinding wheel conditioner by contacting the wear surface of the super-abrasive wheel with the reconditioning tool surface and advancing it into and away from the tool surface a distance equal to the second predetermined depth each time that the wheel is reconditioned so as to assure that individual grains of the super-abrasive constituent of the wheel will extend beyond the bonding material constituent of the wheel to maintain cutting efficiency of the wheel following the reconditioning step.
摘要翻译： 一种改进的方法，用于通过间歇地将轮移动到与砂轮相邻安装的固定轮调节器单元来表面调节超研磨砂轮，调节器单元具有由砂轮接合的消耗元件以调节砂轮，包括双重补偿 该方法具有以下步骤：研磨预定数量的工件以建立第一预定深度的超研磨轮磨损; 通过从消耗性修复工具表面消耗第二预定深度来周期性地调节所述车轮表面; 并且通过控制超砂轮相对于工件的位置来产生砂轮的第一补偿，以将表观轮磨损深度保持在期望的工件公差范围内，并通过接触产生砂轮调节器的第二补偿 具有修复工具表面的超研磨轮的磨损表面，并且每当轮被再润滑时将其推进到工具表面和远离工具表面的距离等于第二预定深度，以便确保超级砂轮的单个颗粒， 轮的研磨成分将延伸超过车轮的接合材料成分，以在再生步骤之后保持车轮的切割效率。
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公开(公告)号：US4890424A
公开(公告)日：1990-01-02
申请号：US93218
申请日：1987-09-04
CPC分类号： B24B41/06 , Y10T82/2597
摘要： The workhead includes a spindle disposed on a base member and rotatable about a rotational axis. The spindle includes a chuck for fixedly clamping one end of an elongated workpart, such as a valve lifter body, having a bore between opposite ends with the longitudinal axis of the bore substantially coaxial with the rotational axis. A fluid bearing such as a hydrostatic bearing is disposed on the base member adjacent the other end of the workpart for providing pressurized fluid at sufficient locations around the other end to resist machining forces tending to deflect the other end off axis relative to the fixedly clamped end during machining of the bore to improve bore roundness and straightness.
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