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Locking device for locking tools in a press brake

A press brake and equipment technology, applied in the field of press brakes, can solve problems such as danger, tool drop, grooved shape exceeding the retaining teeth, etc., to achieve the effect of reducing wear and contact pressure

Active Publication Date: 2016-06-01
ROLLERI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0029] Typically, turning of the tool alone will not cause immediate disengagement of the shank; however, an accidental collision with the tool, such as during a machine setting operation, may in many cases be sufficient to cause the notched profile to overrun the retaining teeth, causing the tool to fall
Considering that some tools can exceed the weight of 25 kg, these events are very dangerous for the operator in charge of the machine and anyone else in its vicinity

Method used

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  • Locking device for locking tools in a press brake
  • Locking device for locking tools in a press brake
  • Locking device for locking tools in a press brake

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0071] Referring to the drawings, numeral 1 denotes a locking device for locking a tool in a press brake as a whole.

[0072] Such a device can be used to constrain tools, indicated at 5 , produced as a monolithic body or divided into subsections.

[0073] Press brakes or bending punches, not shown in the figures, generally comprise a bed defining a fixed plane on which the sheet metal is supported and carrying the bending dies according to the profile into which the sheet metal is to be bent.

[0074] The upper beam is supported such that it can move towards and away from the bed along a generally vertical plane. Movement of the upper beam is produced by means of hydraulic, mechanical or electrical actuators providing the necessary forces for the deforming operation. The beam carries an integral bending tool adapted to cooperate with the mold to bring the sheet into the desired shape. A locking device 1 can be associated with the beam of the press brake for locking one or m...

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PUM

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Abstract

The invention relates to a locking device for locking tools in a press brake comprising a first jaw (2) and a second jaw (3), movable towards and away from each other, and at least one safety hook (4) interposed between said first and said second jaw provided with a retaining tooth (41) adapted to be inserted into a groove (52) defined in the shank (51) of a tool (5), characterized in that on an inner side (35) of said second jaw (3) facing the first jaw (2) there is obtained at least one thrust surface (36) adapted to cooperate with, while resting slidingly against, at least one corresponding rest surface (43) obtained on an outer side (42) of the safety hook, said thrust surface (36) and said rest surface (43) lying substantially parallel along a thrust plane (P) sloping in the opposite direction to the first jaw (2) by an angle (a) of between 30 DEG and 60 DEG with respect to a vertical plane.

Description

technical field [0001] The present invention relates to a device for locking tools in a press brake, in particular a press brake for bending sheet metal or the like. Background technique [0002] In the machine tool industry, press brakes configured to bring sheet metal, plate or the like to a certain bending angle by cold deformation are well known. [0003] Press brakes generally consist of a bed defining a fixed surface on which a sheet metal is placed and carrying a bending die according to the profile in which said sheet metal is bent. [0004] The upper beam is supported such that it can move towards and away from the bed along a generally vertical plane. The beam integrally carries a bending tool adapted to cooperate with the mold to bring the sheet into the desired shape. [0005] Movement of the upper beam is produced by means of hydraulic, mechanical or electrical actuators providing the necessary forces for the deforming operation. [0006] The tool generally h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D5/02
CPCB21D5/0209B21D5/0236B21D5/02
Inventor M·多米尼科
Owner ROLLERI