公开(公告)号：WO2007111916A3

公开(公告)日：2007-12-06

申请号：PCT/US2007007069

申请日：2007-03-22

Applicant: HARDINGE INC ,  SOROKA DANIEL P ,  KERSTERKE RICHARD III ,  COLVIN JOSEPH ,  HUNGERFORD DAVE ,  CARPENTER CRAIG ,  LEWIS WAYNE

Inventor： SOROKA DANIEL P ,  KERSTERKE RICHARD III ,  COLVIN JOSEPH ,  HUNGERFORD DAVE ,  CARPENTER CRAIG ,  LEWIS WAYNE

IPC: B23B31/20 ,  B23P11/02 ,  B23P19/06 ,  F16B39/30

CPC classification number: B23P11/025 ,  B23B31/202 ,  B23B2240/28 ,  B23B2260/138 ,  F16B4/006 ,  Y10T29/49865 ,  Y10T409/30952

Abstract: A bushing (50) has an externally threaded portion (52) with a thread pitch P 1 . A collet body (20) has an internally threaded portion (31) with a thread pitch P 2 , which is smaller than P1 by a pitch differential, ?P. To assembly the bushing (50) and collet body (20), the collet body is heated relative to the bushing to reduce the ?P. The threaded portions (52, 31) of the bushing and collet body are then threadingly engaged with each other. The temperature of the bushing (50) and collet body (20) are then equalized, which tends to increase the ?P, which causes the threaded portions (52, 31) to bind with each other and resist relative loosening rotation. The threaded portions (52, 31) may additionally/alternatively be reverse tapered and/or include variable thread pitches that cause the threaded portions to further bind with each other.

Abstract translation: 衬套（50）具有螺纹间距P 1的外螺纹部分（52）。 夹头体（20）具有螺距P（P 2）的内螺纹部分（31），该间距P 2小于P1，通过间距差ΔP。 为了组装衬套（50）和夹头本体（20），夹头体相对于套管加热以减小ΔP。 衬套和夹头体的螺纹部分（52,31）然后彼此螺纹接合。 然后使衬套（50）和夹头体（20）的温度相等，这倾向于增加ΔP，这导致螺纹部分（52,31）彼此结合并抵抗相对松动旋转。 螺纹部分（52,31）可以另外地或者可选地是反向锥形化和/或包括导致螺纹部分彼此进一步结合的可变螺距。

公开(公告)号：WO2007111916A2

公开(公告)日：2007-10-04

申请号：PCT/US2007/007069

申请日：2007-03-22

Applicant: HARDINGE, INC. ,  SOROKA, Daniel, P. ,  KERSTERKE, Richard, III ,  COLVIN, Joseph ,  HUNGERFORD, Dave ,  CARPENTER, Craig ,  LEWIS, Wayne

Inventor： SOROKA, Daniel, P. ,  KERSTERKE, Richard, III ,  COLVIN, Joseph ,  HUNGERFORD, Dave ,  CARPENTER, Craig ,  LEWIS, Wayne

IPC: B23B31/20 ,  B23P11/02 ,  B23P19/06 ,  F16B39/30

CPC classification number: B23P11/025 ,  B23B31/202 ,  B23B2240/28 ,  B23B2260/138 ,  F16B4/006 ,  Y10T29/49865 ,  Y10T409/30952

Abstract: A bushing has an externally threaded portion with a thread pitch P 1 . A collet body has an internally threaded portion with a thread pitch P 2 , which is smaller than P1 by a pitch differential, ΔP. To assembly the bushing and collet body, the collet body is heated relative to the bushing to reduce the ΔP. The threaded portions of the bushing and collet body are then threadingly engaged with each other. The temperatures of the bushing and collet body are then equalized, which tends to increase the ΔP, which causes the threaded portions to bind with each other and resist relative loosening rotation. The threaded portions may additionally/alternatively be reverse tapered and/or include variable thread pitches that cause the threaded portions to further bind with each other.

Abstract translation: 衬套具有螺纹间距P 1的外螺纹部分。 夹头主体具有螺纹间距P 2 O 2的内螺纹部分，该螺纹部分的距离小于P1，间距差ΔP。 为了组装衬套和夹头体，夹头体相对于衬套加热以减少ΔP。 衬套和夹头体的螺纹部分然后彼此螺纹接合。 然后将衬套和夹头体的温度相等，这倾向于增加ΔP，这导致螺纹部分彼此结合并抵抗相对松动旋转。 螺纹部分可以另外地或者可选地是倒锥形的和/或包括导致螺纹部分彼此进一步结合的可变螺距。