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Press Brake Tools Description
Depends of the application and requirements of bends there are various geometry shapes for punches and dies of press brake tooling to perform standard or special sheet metal bending. The type of the tool is important otherwise the required bend is impossible to achieve.
This type of mold is generally used for 90-degree bending.
Swing Ear Sections
This type of mold generally processes box-shaped products, and the left and right ears can quickly return to their original positions after the bending is completed.
This type of mold is similar in shape to arrow-shaped molds, but has a larger width and knife edge radius, which is suitable for large tonnage machines or heavy materials bending.
This type of mold is generally used to bend at an angle of 30 to 90 degrees, and is also usually used to bend the product at 30 degrees before flattening it.
This type of mold is generally vertical, with a relatively thin thickness, and is suitable for products to be bent from both sides.
This type of mold is generally used for folding groove type or products with greater depth requirements for the center of the upper mold.
The elbow part of this type of mold is very narrow and is usually used for processing facades or door frames.
Multi V Die
The appropriate V-shaped opening width can be selected according to the bending thickness, and it can also be used with semi-circular notches.
Single V Die
The notch angle is generally between 30 degrees and 90 degrees. Compared with the multi-V die, the workpiece has more free space during the bending process.
Double V Die
Because the double-V lower mold is directly installed on the guide rail and is not fixed by screws, the notch can be quickly switched.
No Indentation Die
Compared with ordinary molds, this type of mold can avoid the indentation caused by the contact between the workpiece and the notch during the bending process.
For two or more bendings, the bending workpiece and the mold often interfere with each other. As shown in the figure, the black part is the interference part, so that the bending cannot be completed, or the bending deformation is caused by bending interference. Therefore, for different special workpieces, the corresponding molds need to be customized.
Bending force – declared bending force for the press brake as the max. obtained force for the bend. Bending force is calculated according to the thickness of the part, material and bend requirements.
Bending length – declared bending length as the length of the table and the max. possible length for the tooling installation. Bending length usually shows the possibility of length to be bend with the press brake. Bending length could be standard (usually declared) or inside the columns (which the same as the distance between the columns) for the parts which require the deep positioning inside the throat.
Moveable beam – normally top beam of the machine which is moved together with the punch towards to the die to perform the bend. Beam has the controlled move with the hydraulic or electric systems.
Stroke of the press brake – declared stroke of the beam to move from the top position. Stroke of the bend together with the details and sizes of the punch and the die are necessary for the study of the bend possibilities.
Opening of the press brake, daylight – the max. possible distance from the top position of the beam and the bottom table without the installed tooling.
Backgauge of the press brake – backgauge is the main system at the rear part of the press brake which is used as the stopper or fixation of the position of the part during the bending. Backgauge is the complex unit with the separate movements from manual to the servodrived up to 6 moveable axis with CNC control for complex parts and programs.
Crowning, deflection – press brake because the construction has the internal structure deflections during the bend which are calculated and the subject for the elimination for the precision of the bend. Depends of the construction of the press brake the compensation of such deflections could be construction integrated, handwheel manual, hydraulic with CNC control etc.
Clamping, fixation of the tool – units and systems to clamp punches and dies with the beam and the table of the press brake. There are various systems of the tool clamping and fixation depends of the model and manufacturer, machine possibilities etc. Clamping is connected with the punch holder and die holder units as the middle part of the connection. In general clamping is the manual but could be replaced with pneumatic or hydraulic units.
Top tool or punch – top tool which is connected to the top beam of the press brake.
Die – bottom tool which is connected to the bottom table.
Punch holder – top clamping unit with the fixation elements and intermediate elements to hold the punch inside the unit.
Die holder – bottom clamping tool with fixation elements to hold the die on the table.
Angle of the tool – angle of the punch tip or die groove as desired with the tool geometry.
Multi-V dies – special dies with the several V-openings on different sides for the universal use.
T-shape dies – T-dies as the 1-V dies with the different heights.
Height and width of the tool – external sizes of the tools.
Press Brake Tools Production
Possibility to store lots of standard positions of bending tools with the marking and cutting before shipment allows to provide good delivery time even for big orders. All our bending tools with the use of CNC machinery and quality control during different stages of production. For bending tools only high quality steels C45 or 42CrMo4 are used. The precision grinding allows the best contact with the material. All our tools pass the temperature treatment till 55/60 HRC for long life use and effective protection against damages.
Together with the tooling we can supply the .DXF model for quick import to the CNC-library of press brake.