公开(公告)号：US06494360B1

公开(公告)日：2002-12-17

申请号：US09720479

申请日：2000-12-22

申请人： Thomas Flehmig ,  Klaus Blümel ,  Thomas Neuhausmann

发明人： Thomas Flehmig ,  Klaus Blümel ,  Thomas Neuhausmann

IPC分类号： B21C3708

CPC分类号： B21D5/10 ,  B21C37/0815 ,  B21C37/16

摘要： An apparatus to produce straight bead welded tubes from flat sheet metal blanks with two parallel longitudinal edges includes two form tool halves. The two form tool halves have outer cylindrical half shells borne by a tool support, and are disposed laterally inverted in relation to one another. They are moved towards one another and out of an opened receiving position for the sheet metal blanks into a closed position, in which the two longitudinal edges are held together by the two form tool halves. The apparatus also includes a welding device, which moves over the two form tool halves along the two longitudinal edges retained in a welding position. The two form tool halves have cylindrical internal mandrel halves which are fixedly associated with the outer cylindrical half shells and which cooperate with the outer cylindrical half shells to produce form gaps for insertion of the sheet metal blanks.

摘要翻译： 从具有两个平行纵向边缘的平板金属坯件制造直焊焊接管的设备包括两个形式的工具半部。 两个形状的工具半部具有由工具支撑件承载的外圆柱形半壳体，并且相对于彼此横向倒置设置。 它们彼此移动并且从用于金属板坯料的打开的接收位置移动到关闭位置，在该关闭位置中，两个纵向边缘通过两个成形工具半部保持在一起。 该设备还包括焊接装置，其沿着保持在焊接位置的两个纵向边缘在两个形状的工具半部上移动。 两个形状的工具半部具有圆柱形内部心轴半部，其与外部圆柱形半壳固定地相关联，并且与外部圆柱形半壳体协作以产生用于插入片状金属坯料的形成间隙。

公开(公告)号：US06941787B2

公开(公告)日：2005-09-13

申请号：US10258100

申请日：2001-02-10

申请人： Thomas Flehmig ,  Uwe Kneiphoff ,  Thomas Neuhausmann ,  Martin Kibben

发明人： Thomas Flehmig ,  Uwe Kneiphoff ,  Thomas Neuhausmann ,  Martin Kibben

IPC分类号： B21D9/03 ,  B21D7/025 ,  B21D9/01 ,  B21D9/07 ,  B21B9/07

CPC分类号： B21D9/01 ,  B21D9/073

摘要： A bending device is described for thin-walled metal tubes (R) made of a straight tube guide (1), a core template (2), which adjoins the tube guide (1) and is pivotable in relation thereto, having a connection strip (3), and a mandrel, having a mandrel tip (4), which is flexible in the region of the core template (2), and a mandrel shaft (5), which adjoins the mandrel tip (4) and is rigidly connected thereto and is axially fixed (1) in the tube guide. In order to support the metal tube (R) to be bent over its entire surface on the inside in the active bending region during the bending procedure, the flexible mandrel tip (4), which comprises a radially incompressible solid cylinder made of elastomer, extends only over the starting section of the bending curve, where the bending procedure occurs. In order to pull the metal tube (R) to be bent over this mandrel tip (4), the tube is clamped in the region of the core template (2) for a short length using a spherical clamping head (7) insertable in the metal tube (R), the clamping head (7) being movable in relation to the mandrel tip (4) in the pivot region of the core template (2) and being attached to a traction means (6) implemented as a retrieval element.

摘要翻译： 对于由直管引导件（1）制成的薄壁金属管（R）的弯曲装置，与芯管模板（2）邻接并且可相对于其枢转的芯模板（2），具有连接条 （3），并且具有在所述芯模板（2）的区域中是柔性的心轴尖端（4）的心轴和与心轴尖端（4）相邻并刚性连接的心轴轴（5） 并且在管引导件中轴向固定（1）。 为了在弯曲过程期间支撑金属管（R）在活动弯曲区域的内侧的整个表面上弯曲，包括由弹性体制成的径向不可压缩的实心圆柱形的柔性心轴尖端（4）延伸 仅在弯曲过程的起始部分发生弯曲过程。 为了将金属管（R）拉动以在该心轴尖端（4）上弯曲，使用球形夹头（7）将管夹紧在芯模板（2）的区域中较短的长度， 金属管（R），夹头（7）可相对于芯模板（2）的枢转区域中的心轴尖端（4）移动并且附接到实现为检索元件的牵引装置（6）。