公开(公告)号：US20060247110A1

公开(公告)日：2006-11-02

申请号：US11120235

申请日：2005-05-02

申请人： Robert Brinkman ,  Paul Allart ,  David Cole ,  Liberato Pietrantoni

发明人： Robert Brinkman ,  Paul Allart ,  David Cole ,  Liberato Pietrantoni

IPC分类号： B23Q3/155

CPC分类号： B23B31/36 ,  B23B31/1107 ,  B23B31/1122 ,  Y10T82/2589 ,  Y10T279/17931 ,  Y10T408/957 ,  Y10T409/309408 ,  Y10T483/1702

摘要： The present invention provides an improvement (20) in a Davenport® automatic screw machine having a stationary spindle. The improvement broadly includes a quick-change mechanism (26) associated with the stationary spindle (22). The mechanism includes mating frusto-conical first and second surfaces (28, 31) on the spindle and tool holder, and a multi-lead threaded connection (32) between the tool holder and stationary spindle such that the tool holder may be quickly locked into mating engagement with the stationary spindle by relative rotation therebetween through a short angular distance. The invention may also include an adjustment mechanism (33) that allows the axis (x2-x2) of the tool to be aligned with the axis (x1-x1) of a spaced rotatable spindle. This adjustment mechanism includes a base member (34), an adjustment member (35), and a locking mechanism (37) for selectively holding the adjustment member in the desired position relative to the base member.

摘要翻译： 本发明提供了具有静止心轴的Davenport自动螺旋机器的改进（20）。 该改进广泛地包括与静止心轴（22）相关联的快速切换机构（26）。 该机构包括在主轴和工具夹具上配合截头圆锥形的第一和第二表面（28,31），以及在工具架和固定主轴之间的多引线螺纹连接（32），使得工具夹可以快速地锁定 通过相对旋转通过短的角距离与固定的主轴配合。 本发明还可以包括调整机构（33），其允许工具的轴线（x 2 -x 2-x 2）与轴线对准（x < 间隔开的可旋转主轴的1/1×1/1）。 该调节机构包括基座部件（34），调节部件（35）和用于将调节部件相对于基部部件选择性地保持在所需位置的锁定机构（37）。

公开(公告)号：US20060010982A1

公开(公告)日：2006-01-19

申请号：US11225668

申请日：2005-09-13

申请人： Paul Allart ,  Liberato Pietrantoni

发明人： Paul Allart ,  Liberato Pietrantoni

IPC分类号： G01L7/00

CPC分类号： B21H3/04

摘要： The invention provides an improved method and apparatus for indicating an apparent error in the operation of a fluid-powered attachment (A) mounted on a machine tool for controlled movement toward and away from a workpiece (W) upon which an operation (e.g., thread rolling, knurling, burnishing, etc.) is to be performed during a cycle. The improved apparatus (60) broadly includes: a fluid-powered actuator (64) for selectively moving the attachment (A) relative to workpiece (W) during the cycle; a sensor (73) operatively arranged to monitor the value of at least one of the pressure within the actuator, and the time of operation, during at least a portion of the cycle, and arranged to provide an output signal; and a programmable logic unit (75) provided with the sensor output signal, arranged to store minimum and maximum permissible values of the selected pressure and/or time of operation, and operatively arranged to indicate an apparent error in the performance of the operation on the workpiece if the sensed value is not between the stored minimum and maximum stored values.

摘要翻译： 本发明提供了一种改进的方法和装置，用于指示安装在机床上的流体动力附件（A）的操作中的明显误差，用于受控地朝向和远离工件（W）移动，在其上进行操作（例如，螺纹 轧制，滚花，抛光等）在一个循环中进行。 改进的装置（60）广泛地包括：用于在循环期间相对于工件（W）选择性地移动附件（A）的流体动力致动器（64） 传感器（73），可操作地布置成在循环的至少一部分期间监测致动器内的压力和操作时间中的至少一个的值，并且被布置成提供输出信号; 以及设置有所述传感器输出信号的可编程逻辑单元（75），被布置成存储所选择的压力和/或操作时间的最小和最大允许值，并且可操作地布置成指示对所述操作的性能的明显误差 如果感测值不在所存储的最小和最大存储值之间。

公开(公告)号：US20050210991A1

公开(公告)日：2005-09-29

申请号：US10806708

申请日：2004-03-23

申请人： Paul Allart ,  Liberato Pietrantoni

发明人： Paul Allart ,  Liberato Pietrantoni

IPC分类号： B21H3/04 ,  F16B39/30

CPC分类号： B21H3/04

摘要： The invention provides an improved method and apparatus for indicating an apparent error in the operation of a fluid-powered thread-forming attachment (A) mounted on a machine tool for controlled movement toward and away from a workpiece (W) upon which a thread is to be formed during a thread-forming cycle. The improved apparatus (60) broadly includes a fluid-powered actuator (64) for selectively moving the thread-forming attachment (A) relative to workpiece (W) during the cycle; a sensor (73) operatively arranged to monitor the pressure within the actuator during at least a portion of the cycle, and arranged to provide an output signal; and a programmable logic unit (75) provided with the sensor output signal, arranged to store minimum and maximum permissible fluid pressure values expected during the cycle, and operatively arranged to indicate an apparent error in the formation of a thread on the workpiece if the pressure determined by the sensor is not between the stored minimum and maximum values.

摘要翻译： 本发明提供了一种改进的方法和装置，用于指示安装在机床上的流体动力的螺纹成型附件（A）的操作中的明显误差，用于受控地移动和远离工件（W），螺纹是 在螺纹成型循环期间形成。 改进的装置（60）广泛地包括用于在循环期间相对于工件（W）选择性地移动螺纹形成附件（A）的流体动力致动器（64） 传感器（73），可操作地布置成在循环的至少一部分期间监测致动器内的压力，并且被布置成提供输出信号; 以及设置有所述传感器输出信号的可编程逻辑单元（75），被布置成存储在所述循环期间期望的最小和最大允许流体压力值，并且可操作地布置成指示在所述工件上形成螺纹的明显误差， 由传感器确定不在存储的最小值和最大值之间。

公开(公告)号：US20050210943A1

公开(公告)日：2005-09-29

申请号：US10806505

申请日：2004-03-23

申请人： Paul Allart ,  Sandro Belpanno

发明人： Paul Allart ,  Sandro Belpanno

IPC分类号： B21H3/04 ,  B21H3/06

CPC分类号： B21H3/044

摘要： A thread rolling attachment (50) is adapted to be mounted on a machine tool and to be selectively moved in an axially direction relative to a workpiece (W) having a cylindrical surface upon which a thread is to be rolled. The improvement broadly includes a center plate (62) having three circularly-spaced detents (82); a front plate (66) having a central portion (70) arranged in axially-spaced relation to the center plate and having three circularly-spaced lugs (71) extending toward the center plate such that their distal end faces are adapted to engage and bear against a center plate surface (81); a recess (73) extending into each lug from such distal surface, each recess adapted to receive a respective one of the detents for angularly orienting the center and front plates relative to one another; three eccentric roll pins (63) having their opposite marginal end portions journalled on the center and front plates, and spaced equally from one another about an imaginary circle; a thread roll (65) rotatably mounted on each eccentric roll pin; and a plurality of fasteners (68) operatively arranged to selectively hold the center and front plates together; whereby, when the thread rolling attachment is assembled, the front plate will have improved rigidity and will be less susceptible to deformation.

摘要翻译： 螺纹滚动附件（50）适于安装在机床上并且能够相对于具有圆形表面的工件（W）在轴向方向上选择性地移动，在该工件（W）上将要滚动螺纹。 该改进广泛地包括具有三个圆形间隔的棘爪（82）的中心板（62）。 具有中心部分（70）的前板（66），所述中心部分（70）以中心板的轴向隔开的关系布置，并且具有三个圆形间隔的凸耳（71），所述凸耳朝向中心板延伸，使得它们的远端面适于接合和承受 抵靠中心板表面（81）; 从所述远端表面延伸到每个凸耳中的凹部（73），每个凹部适于容纳相应的一个棘爪，用于相对于彼此角中心和前板的角度定向; 三个偏心辊销（63）具有相对的边缘端部轴颈安装在中心和前板上，并且绕虚拟圆圈彼此间隔开; 可旋转地安装在每个偏心辊销上的螺纹辊（65） 以及多个紧固件（68），其可操作地布置成选择性地将所述中间板和前板保持在一起; 由此，当组装螺纹滚动附件时，前板将具有改善的刚性并且将不易变形。