公开(公告)号：US20090017925A1

公开(公告)日：2009-01-15

申请号：US12178183

申请日：2008-07-23

Applicant: Alessandro Vescovini

Inventor： Alessandro Vescovini

IPC: B21H3/02 ,  B21D24/00

CPC classification number: B21K1/54 ,  B21K1/46 ,  Y10T29/49996

Abstract: A method for producing metal parts such as special bolts (20) by means of cold extrusion in pressing dies comprises a first step of cutting to size a metal blank (30) to be modelled with predetermined dimensions, at least one step of cold pressing in a die in order to reduce one or more portions of the blank (30) to predetermined diameters, and a step of cold pressing in a die during which a coupling key (25) is formed on a portion (32) of the blank (30), the lateral surface (36) of the key protruding beyond the lateral surface of this portion (32), with respect to the longitudinal axis of the blank (30). The resulting product can be used in particular as a special bolt for the positive coupling of a mowing machine blade to a rotating plate in order to rotate the blade.

Abstract translation: 用于通过在挤压模具中的冷挤压来生产金属部件如特殊螺栓（20）的方法包括：第一步骤，将金属坯料（30）切割成尺寸，以预定尺寸进行建模，至少一个步骤为： 模具，以将坯件（30）的一个或多个部分减小到预定直径;以及在模具中进行冷压步骤，在该模具期间，在坯件（30）的一部分（32）上形成有联接键 ），所述键的侧表面（36）相对于所述坯件（30）的纵向轴线突出超出所述部分（32）的侧表面。 所得到的产品可以特别用作用于将割草机叶片与旋转板的正耦合的特殊螺栓，以便旋转叶片。

公开(公告)号：US20050145004A1

公开(公告)日：2005-07-07

申请号：US10501104

申请日：2003-02-26

Applicant: Alessandro Vescovini

Inventor： Alessandro Vescovini

IPC: B21J9/02 ,  B21K1/68 ,  B21K21/00 ,  B21K27/04

CPC classification number: B21J9/022 ,  B21K1/68 ,  B21K21/00 ,  B21K27/04

Abstract: Cold extrusion procedures for obtaining metal elements such as for example bushings, nuts or other elements with dead or through holes, screws, standard and special shape extruded or pressed products, etc. on a machining center comprising a series of hydraulic presses connected to each other with an automatic movement system. The final drilling or shearing of the elements is advantageously carried out by a dedicated drilling or shearing unit, working at high speed, which can consist of a vertical mechanical press. The use of the plant comprising several hydraulic presses together with the rapid drilling or shearing unit makes it possible to achieve a high level of productivity.

Abstract translation: 用于在加工中心上获得金属元件例如衬套，螺母或具有死孔或通孔的其他元件，螺钉，标准和特殊形状的挤出或压制产品等的冷挤压步骤，包括彼此连接的一系列液压机 具有自动移动系统。 元件的最终钻孔或剪切有利地通过专用的钻孔或剪切单元进行，其高速工作，其可以由垂直的机械压力机组成。 使用包括多个液压机的设备以及快速钻孔或剪切单元使得可以实现高水平的生产率。

公开(公告)号：US07347075B2

公开(公告)日：2008-03-25

申请号：US10501104

申请日：2003-02-26

Applicant: Alessandro Vescovini

Inventor： Alessandro Vescovini

IPC: B21D53/24 ,  B21D43/05 ,  B21K1/68

CPC classification number: B21J9/022 ,  B21K1/68 ,  B21K21/00 ,  B21K27/04

Abstract: Cold extrusion procedures for obtaining metal elements such as for example bushings, nuts or other elements with dead or through holes, screws, standard and special shape extruded or pressed products, etc. on a machining center comprising a series of hydraulic presses connected to each other with an automatic movement system. The final drilling or shearing of the elements is advantageously carried out by a dedicated drilling or shearing unit, working at high speed, which can consist of a vertical mechanical press. The use of the plant comprising several hydraulic presses together with the rapid drilling or shearing unit makes it possible to achieve a high level of productivity.

Abstract translation: 用于在加工中心上获得金属元件例如衬套，螺母或具有死孔或通孔的其他元件，螺钉，标准和特殊形状的挤出或压制产品等的冷挤压步骤，包括彼此连接的一系列液压机 具有自动移动系统。 元件的最终钻孔或剪切有利地通过专用的钻孔或剪切单元进行，其高速工作，其可以由垂直的机械压力机组成。 使用包括多个液压机的设备以及快速钻孔或剪切单元使得可以实现高水平的生产率。

公开(公告)号：US20060107517A1

公开(公告)日：2006-05-25

申请号：US10534277

申请日：2004-09-08

Applicant: Alessandro Vescovini

Inventor： Alessandro Vescovini

IPC: B23P13/04

CPC classification number: B21K1/54 ,  B21K1/46 ,  Y10T29/49996

Abstract: A method for producing metal parts such as special bolts (20) by means of cold extrusion in pressing dies comprises a first step of cutting to size a metal blank (30) to be modelled with predetermined dimensions, at least one step of cold pressing in a die in order to reduce one or more portions of the blank (30) to predetermined diameters, and a step of cold pressing in a die during which a coupling key (25) is formed on a portion (32) of the blank (30), the lateral surface (36) of the key protruding beyond the lateral surface of this portion (32), with respect to the longitudinal axis of the blank (30). The resulting product can be used in particular as a special bolt for the positive coupling of a mowing machine blade to a rotating plate in order to rotate the blade.

Abstract translation: 用于通过在挤压模具中的冷挤压来生产金属部件如特殊螺栓（20）的方法包括：第一步骤，将金属坯料（30）切割成尺寸，以预定尺寸进行建模，至少一个步骤为： 模具，以将坯件（30）的一个或多个部分减小到预定直径;以及在模具中进行冷压步骤，在该模具期间，在坯件（30）的一部分（32）上形成有联接键 ），所述键的侧表面（36）相对于所述坯件（30）的纵向轴线突出超出所述部分（32）的侧表面。 所得到的产品可以特别用作用于将割草机叶片与旋转板的正耦合的特殊螺栓，以便旋转叶片。