公开(公告)号：US3733925A

公开(公告)日：1973-05-22

申请号：US3733925D

申请日：1971-04-29

Applicant: SCHMIDT R ,  SCHMIDT E

Inventor： SCHMIDT R ,  SCHMIDT E

IPC: B23Q1/68 ,  B23B21/00

CPC classification number: B23Q1/68 ,  Y10T82/2545

Abstract: A thread cutting device for a slide lathe comprising a tool holder support member constructed of a guide member and a slide member reciprocatingly slidable with respect to each other and mounted at a pre-determined oblique angle with respect to the axis of rotation of the lathe spindle whereby the members move in a straight line movement at the oblique angle. SPring biased latch means normally lock the guide and slide members against relative movement when the tool is in a work cutting position. Stop means are connected to the support member to release the latch means to permit the guide and slide members to move relative to each other to cause the cutting tool to move out of engagement with a workpiece and stop continued feed of the tool at a position where the cutting operation is to be terminated.

公开(公告)号：US3766415A

公开(公告)日：1973-10-16

申请号：US3766415D

申请日：1972-04-18

Applicant: DAME R ,  SCHMIDT E

Inventor： DAME R ,  SCHMIDT E

IPC: G05D3/00 ,  H01L41/083 ,  H04R17/00

CPC classification number: G05D3/00 ,  H01L41/0536 ,  H01L41/083 ,  H01L41/0833

Abstract: An ultra-sensitive actuator possessing substantial load carrying capacity and positioning range and which is capable of producing motions of 1 micro-inch or less with accuracy, which is thus especially adapted for supplying forces and displacements required to change the figures of mirrors and structural elements of optical equipment, such as, telescopes, including large space telescopes, optical polishing beds, mirrors for positioning devices, mirror deflection devices, mirror aspheric generators and electronic and optional tracking and positioning devices. The actuator includes a housing containing a piezoelectric stack consisting of oppositely oriented piezoelectric crystal discs arranged alternately in series to provide maximum expansion; a normally sealed chamber containing a liquid; a diaphragm dividing a portion of the housing containing the stack from the chamber, and an extensible housing end portion located at the end of the chamber disposed remote from the diaphragm. When a proper voltage is applied to the stack, it is extended to force the diaphragm into the sealed chamber for causing the liquid to exert a driving force against the extensible housing end portion for moving said end portion outwardly of the housing. An expansible bellows defines a part of the chamber and bears against the extensible end portion of the housing and together with the diaphragm amplifies the stack movement. Valves are provided for selectively trapping the displaced liquid for replenishing the liquid and for bleeding the chamber.

Abstract translation: 一种具有很大承载能力和定位范围的超灵敏致动器，其精度可以产生1微英寸或更小的运动，因此特别适用于提供改变反射镜和结构元件图形所需的力和位移 的光学设备，例如望远镜，包括大型望远镜，光学抛光床，定位装置的镜子，镜子偏转装置，镜子非球面发生器以及电子和可选的跟踪和定位装置。 致动器包括：壳体，其包含压电叠层，该压电叠层由相对定向的压电晶体盘串联交替排列以提供最大的膨胀; 包含液体的常密室; 隔离室将容纳堆叠的壳体的一部分与室隔开，以及可伸缩的壳体端部，其位于远离膜片设置的室的端部。 当适当的电压施加到堆叠时，其被延伸以迫使隔膜进入密封室，以使液体对可伸展的壳体端部施加驱动力，以将所述端部部分移动到外壳的外部。 可膨胀的波纹管限定了室的一部分并且抵靠壳体的可延伸端部并且与隔膜一起放大了堆叠运动。 阀被提供用于选择性地捕获被移位的液体以补充液体并使腔室流出。