EP-3906126-B1 - AN AUXILIARY BENDING TOOL FOR BENDING MACHINES

Inventors

• MUTLU, Selime
• ULU, Ali

Dates

Publication Date

20260506

Application Date

20191009

Claims (1)

1. An auxiliary bending tool (1) for a body (40) of a CNC bending machine with a bending tool (15) for bending a work piece in various shapes, wherein said auxiliary bending tool (1) comprises a tool carrier apparatus (20) having at least one connection protrusion (21) which can be associated onto said body (40), a tool locking unit (10) connected to an assembly surface (22), provided on said tool carrier apparatus (20), through a connection surface (16) and configured to provide locking of at least one tool (15) thereon, and at least one drive group (30) for providing forward-backward movement on an axis X (I) of the tool carrier apparatus (20) whereon said tool locking unit (10) is associated, said drive group (30) comprises at least one drive transfer unit (32) configured to be driven by at least one drive element (31) and to provide movement of the tool carrier apparatus (20) in said axis X (I), said auxiliary bending tool (1) being characterized in that said tool locking unit (10) comprises a tool locking arm (11) which can realize rotational movement around an axis A (III), at least one movement element (12) associated with said tool locking arm (11) and which provides transferring of the movement transferred from the tool locking arm (11), at least one lock element (13) associated with said movement element (12), at least one tool locking element (14) which provides compression and fixation of said bending tool (15) by means of the movement of said lock element (13) in an axis Z (II).

Description

TECHNICAL FIELD The present invention relates to an auxiliary bending tool in order to be used in CNC bending machines. PRIOR ART CNC bending machines provide bending of different sized sheets with high precision and provide said sheets to become suitable for the needs of various sectors. Metal is used in various fields from light industry to heavy industry. However, in various fields, metals are needed to be used in various shapes in a different manner from the flat sheet shape. In the known state of the art, there is no auxiliary tool which provides increase of the bending capacity in CNC bending machines. Particularly in bending process in mass production, auxiliary tools are needed which can function in a compliant manner with the present bending tool. In case where partial bending of the part, corner bending and easier and further bending of special profiles are desired, usage of pluralities of machines is required. This leads to increase of the process and the costs, and moreover, this leads to decrease of the production efficiency. JPH07116734A discloses a clamping apparatus for press brake tools, which comprises a tool holder fixed to an upper beam of the press brake and a clamping mechanism operable to fix and release a forming tool. The clamping mechanism includes a pressing-down member actuated by mechanical or pneumatic means to securely fix the tool in place, allowing for tool replacement operations. The system aims to improve the efficiency and ease of tool exchange in press brake machines. As a result, because of all of the abovementioned problems, an improvement is required in the related technical field. BRIEF DESCRIPTION OF THE INVENTION The present invention relates to an auxiliary bending tool, for eliminating the above mentioned disadvantages and for bringing new advantages to the related technical field. The main object of the present invention is to provide an auxiliary bending tool which functions in a compliant manner to the bending tool existing in CNC bending machines and which increases bending capacity and which helps in special profile bending, corner bending and similar bending. In order to realize the abovementioned objects and the objects which are to be deducted from the detailed description below, the present invention relates to an auxiliary bending tool associated to a body provided in CNC bending machines and which provides the work piece to be bent in various shapes and which can operate together with the present bending tools. Accordingly, said auxiliary bending tool comprises a tool carrier apparatus having at least one connection protrusion which can be associated onto said body, a tool locking unit connected to an assembly surface, provided on said tool carrier apparatus, through a connection surface and configured to provide locking of at least one tool thereon, and at least one drive group for providing forward-backward movement on an axis X of the tool carrier apparatus whereon said tool locking unit is associated. Thus, an auxiliary bending tool is provided which functions in a compliant manner to the bending tool existing in CNC bending machines and which increases bending capacity and which helps in special profile bending, corner bending and similar bending. According to the present invention, said tool locking unit comprises a tool locking arm which can realize rotational movement around an axis A, at least one movement element associated with said tool locking arm and which provides transferring of the movement transferred from the tool locking arm, at least one lock element associated with said movement element, at least one tool locking element which provides compression and fixation of said tool by means of the movement of said lock element in an axis Z. Thus, the tool is locked in the tool locking unit provided in the auxiliary bending tool. According to the present invention, said drive group comprises at least one drive transfer unit configured to be driven by at least one drive element and to provide movement of the tool carrier apparatus in said axis X. Thus, transfer of the auxiliary bending tool in the direction of axis X on the body is provided. BRIEF DESCRIPTION OF THE FIGURES Figure 1 is a representative perspective view of the form where the subject matter auxiliary bending tool is associated with the body.Figure 2 is a representative perspective view of tool locking unit in the subject matter auxiliary bending tool.Figure 3 is a zoomed representative perspective view of the lock element in the subject matter auxiliary bending tool.Figure 3a is a zoomed representative perspective view of the tool locking element in the subject matter auxiliary bending tool.Figure 4 is a representative perspective view of the inner part of the drive group which provides movement to the subject matter auxiliary bending tool.Figure 5a is a top representative perspective view of the tool carrier apparatus in the subject matter auxiliary bending tool.Figure 5b is