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Q What is the difference between power press and press brake?
A The Power press is converted from the Circular motion of the main motor to the connecting rod to the linear movement of the slider, and deformation occurs after the material is pressed down, so a group of dies must be combined. The Press brake controls the sliding block through the hydraulic system to complete the pressing down of the sheet to form the sheet.
Main differences:
1. Different mechanical structures;
2. Different transmission methods;
3. Different control systems;
4. Different working speeds.
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Q What is press brake used for?
A Press brake is mainly used in sheet metal processing. By selecting and matching different molds, it can bend, stretch, round, punch, compact, and shape plates in one time. It is widely suitable for decoration, electrical appliances, steel structures, ships, aviation and other industries. It mainly processes carbon steel, stainless steel, aluminum and other plates.
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Q How do you use press brake?
A The main work steps are:
1. Connect the power supply and start the oil pump;
2. Adjust the depth or angle bending of the oil cylinder;
3. Select the appropriate mold groove; (Usually choose a groove with a thickness of 8 times the width of the plate);
4. Adjust the back-gauge distance;
5. Step on the foot switch and start bending.
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Q Is a press brake a CNC machine?
A Sure, it can be supported. It has multi-control axes and a CNC controller. Generally, CNC is better than NC, and it is more expensive.
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Q How does press brake work?
A The Press brake drives the ram to move through the hydraulic system to extrude the metal plates between the dies, thus forming.
1. Synchronization system: The machine is composed of Torsion bar, swing arm, and joint bearing. As a mechanical synchronization structure, following the slider for transmission work.
2. Ram: The ram is adjusted up and down through the piston movement of the hydraulic cylinders on both sides, and is controlled by the CNC system.
3. Back gauge: It driven by motor, and is driven by a synchronous belt and a synchronous wheel to move the screw rods and linear guide rails on both sides. The CNC system adjusts the distance.
4. Workbench: The workbench can support the mold and sheet metal, and provide disturbance compensation function.
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Q Are press brakes hydraulic?
A Yes. As the "heart" of the Press brake, the hydraulic system drives two oil cylinders to form vertical downward pressure, controls the slider to bend on the mold, and realizes synchronous work. The control process is: starting the oil pump - sliding block downward movement - pressurizing and bending - reducing pressure - cylinder return - adjusting pressure. However, with the development of servo technology, the all electric servo Press brake has entered the market, and its features of no hydraulic oil, faster, quieter, and more environmentally friendly meet the future needs.
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Q What is a press brake tool?
A Press brake tool is used by bend metal sheet, which is widely used. When the machine press down, the upper die extrudes the sheet surface, and the lower tool limits the sheet surface, so as to achieve the deformation of the sheet and become the required shape. It are mainly divided into two categories: upper die and its accessories and lower die and its accessories. The upper die category includes fixture, upper die, die handle, die head, etc; The types of lower molds are divided into lower molds, mold holders, mold bases, etc. They can be combined with each other; The main materials of Press brake tool are 45 #, 55SiCr, 42CrMo, etc.
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Q What are the two main types of press brakes?
A At present, Press brake is mainly divided into two structures: torsion bar synchronous and electro-hydraulic servo; The torsion bar synchronous Press brake is characterized by low investment and easy use, and the electro-hydraulic servo Press brake is characterized by high precision and multi-function.
Choosing them will be determined based on factors such as your budget, product features, worker skills, and location.
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Q What are the advantages of press brake?
A 1. High efficiency: The rapid bending method allows metal plates to be processed into various shapes, improving production efficiency;
2. High precision: Grating ruler feedback correction, proportional valve controlling two oil cylinders separately to achieve closed-loop control, with positioning and repeated positioning accuracy of Y and X axes within 0.02mm;
3. Advanced technology: the development of Press brake combines intelligent technology, which is easy to operate and has more functions.
4. Cost saving: Automated bending reduces the production cost of each workpiece;
5. Affordable price: Good quality and affordable price for more customers to accept.
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Q What is the process of press brake?
A It uses the equipped mold to bend the sheet metal into workpieces of various geometric cross section shapes.
1. Select a suitable bending die according to the Feature selection of the part to be processed;
2. Check the machine where the selected mold is located and confirm the model;
3. Calculate the bending pressure required by the part, and check whether the bending pressure required by the part is within the working pressure range of the selected mold and the selected;
4. Based on the unfolded graphics of the parts, perform multi-step programming to start bending.
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Q What is the principle of press brake?
A Press brake is a machine used to bend metal, widely used in the manufacture of sheet metal parts, The work principle is by controlling the up and down movement of the slider extrusion die between the metal plate bending into different shapes, the main components include for including the body, hydraulic system, electrical control system and table.
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Q What is the difference between finger brake (Pan brake) and press brake?
A A box and pan brake, also called a finger brake, Their main difference as follow:
1. Working principle: Finger brake is to put the plate on the table, the pressure edge beam fixed plate, finger beam up or down to achieve bending; Press brake is to control the mold to achieve angle bending, bending range is greater.
2. Accuracy: Press brake bending accuracy is better than the finger brake, and angle error within +-0.03 degrees.
3. Control methods; Finger brake is mostly manual or mechanical control; Press Brake are NC or CNC control.
4. Technical level: Finger brake is mainly manual control, low technical requirements for the user; Press brake can be multi-step programming, higher technical requirements for user.
5. Drive methods; Finger brake for the electric drive, so the bending force is small, suitable for thin sheet metal; Press brake is mostly hydraulic drive, bending force is larger for most thickness.
6. Bending thickness: Finger brake bending thickness in 1-3mm, Press brake bending thickness in 1-20mm
7. Price: Finger brake price is low, Press brake price is high.
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Q Who uses press brakes?
A When people are engaged in sheet metal bending work, they have to use bending machines. The main people are：
1. In the decoration industry, door and window fabrication；
2. In the electrical industry, box and cabinet fabrication；
3. In the restaurant and kitchen equipment industry；
4. In the transportation facilities industry, light pole manufacturers
5. In the automotive, marine industry;
6. In the aerospace manufacturing industry.
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Q Why is a press brake called a press brake?
A ‘Press’ refers to press down; ‘brake’ refers to the use of gate reduction and pounding machine. With the development of metal and electricity, People made a similar manual machine, by extruding metal sheet after forming. Further combined with automation, the machine evolved into a machine with automatic bending function, and the term became known in sheet metal industry.
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