公开(公告)号：EP0391051A3

公开(公告)日：1991-03-27

申请号：EP90103375.3

申请日：1990-02-22

申请人： ERICO INTERNATIONAL CORPORATION

发明人： Samas, Mark V. ,  Ricker, Edward D.

IPC分类号： B23G1/06 ,  B23G5/10

CPC分类号： B23G5/10 ,  B23G1/06 ,  Y10T408/03 ,  Y10T408/17 ,  Y10T408/8588 ,  Y10T408/85895

摘要： A machine for taper threading the end of a bar (21) such as reinforcing bar used in concrete construction utilizes a power operated vice (40) to clamp and feed the bar end axially into a rotary head (42) which contains chaser tooling holders (116-119) which open uniformly on the bar end as the head rotates. The rotary head is axially stationary but contains an axially movable key or linear cam (134) which engages a readily removable transversely extending control rod assembly (127) in turn moving the chaser holders. Axial movement of the power vice and thus the bar end at a controlled axial speed with respect to the rotary speed of the head moves the key to cause the movement of the chaser holders. The chaser holders in addition to supporting the thread cutting chasers (181) also support ahead of the chaser an indexable triangular insert (180) to pre-cone the bar end. To change the set-up of the machine for different bar sizes the control rod is removed and replaced, and a proper cutting speed for the bar is selected by adjusting the RPM of the head through a transmission. The extent of axial movement of the key may also be controlled to optimize the cycle time of the machine. In this manner all bar sizes may be threaded in a single pass and set-up from bar size to bar size is accomplished quite simply in a short period of time.

公开(公告)号：EP0391051A2

公开(公告)日：1990-10-10

申请号：EP90103375.3

申请日：1990-02-22

申请人： ERICO INTERNATIONAL CORPORATION

发明人： Samas, Mark V. ,  Ricker, Edward D.

IPC分类号： B23G1/06 ,  B23G5/10

CPC分类号： B23G5/10 ,  B23G1/06 ,  Y10T408/03 ,  Y10T408/17 ,  Y10T408/8588 ,  Y10T408/85895

摘要： A machine for taper threading the end of a bar (21) such as reinforcing bar used in concrete construction utilizes a power operated vice (40) to clamp and feed the bar end axially into a rotary head (42) which contains chaser tooling holders (116-119) which open uniformly on the bar end as the head rotates. The rotary head is axially stationary but contains an axially movable key or linear cam (134) which engages a readily removable transversely extending control rod assembly (127) in turn moving the chaser holders. Axial movement of the power vice and thus the bar end at a controlled axial speed with respect to the rotary speed of the head moves the key to cause the movement of the chaser holders. The chaser holders in addition to supporting the thread cutting chasers (181) also support ahead of the chaser an indexable triangular insert (180) to pre-cone the bar end. To change the set-up of the machine for different bar sizes the control rod is removed and replaced, and a proper cutting speed for the bar is selected by adjusting the RPM of the head through a transmission. The extent of axial movement of the key may also be controlled to optimize the cycle time of the machine. In this manner all bar sizes may be threaded in a single pass and set-up from bar size to bar size is accomplished quite simply in a short period of time.

摘要翻译： 用于在混凝土结构中使用的诸如钢筋之类的杆（21）的端部的锥形螺纹的机器利用动力操作的凹部（40）来将杆端部轴向地夹紧并进给到包含追踪模具夹持器的旋转头（42） 116-119），当头部旋转时，其在杆端部均匀地打开。 旋转头轴向固定，但包含可轴向移动的钥匙或线性凸轮（134），其接合易于移除的横向延伸的控制杆组件（127），从而使追击器保持器移动。 动力爪的轴向运动以及相对于头部的旋转速度的受控的轴向速度的杆端移动钥匙以使追击器的移动。 除了支撑螺纹切割踏板（181）之外，追击器支架还支撑在追击器之前可转位的三角形刀片（180），以预先使杆端部锥形。 为了改变不同杆尺寸的机器的设置，控制杆被拆卸和更换，并且通过通过变速器调节头部的RPM来选择适当的切割速度。 也可以控制钥匙的轴向运动的程度以优化机器的循环时间。 以这种方式，所有的条尺寸可以在一次通过螺纹，并且从棒尺寸到条尺寸的设置在相当简单的时间段内完成。