Semi-automatic Panel Bender EMBC2202
products specification
| No. | Name | Parameter | Unit |
| 1 | Max.length | 2200 | mm |
| 2 | Max.width | 1500 | mm |
| 3 | Min. Bending length | 260 | mm |
| 4 | Min.bending width | 190 | mm |
| 5 | Max.bending thickness（MS，UTS 410N/mm²） | 2 | mm |
| 6 | Max.bending thickness（SS，UTS 700N/mm²） | 1.2 | mm |
| 7 | Min.bending thickness（MS，UTS 410N/mm²） | 0.35 | mm |
| 8 | Max.bending height | 200 | mm |
| 9 | Length adjustment mode of upper press | Manual | |
| 10 | Weight | 22 | T |
| 11 | Outlook size：L*W*h | 6100*2700*2920 | mm |
Characteristics and main structure
In terms of machine design and manufacturing, Hebei Hanzhi CNC Machinery Co.,Ltd. mainly focuses on the following points:
1. A marketing concept that pursues practicality and saves the user every penny.
2. A very reliable and precise design concept.
3. High-quality raw materials, purchased parts and exquisite processing techniques.
4. More emphasis on ease of use and maintenance and safety.
5. Low maintenance rate and maintenance cost in the same industry.
frame
A. Building a 3D finite element model: Based on the developed and designed 3D solid model, a dynamic finite element model is built for calculations. The model considers the main components on the force transfer connection. The forces are transferred to the bearing through the connection and then the strength analysis of the bearing is carried out.
Fig. 1 Panel bender Finite element dynamic modeling of complete machine
B. Analysis of Static Analysis Results: Due to the slow machining speed, the strength analysis can be reduced to a static problem. Based on the plate compression load and the bending load in the vertical direction of the cutter head, the stress and deformation results are shown below. The maximum stress appears in the throat of the body with a maximum stress of 21.2mpa and the maximum deformation appears in the upper end of the body with a maximum deformation of 0.30mm.
According to the finite element analysis results of the frame, Q345 steel was chosen as the material; carbon dioxide shield welding was adopted; tempering treatment was carried out to eliminate the stresses generated by welding; thus ensuring the accuracy, stability and high rigidity of the equipment for long-term operation.
Fig. 2 stress displacement deformation analysis results of frame
Upper ram
This part mainly consists of slider, high torque lead screw, reducer, guide rail, servo motor and so on. The main drive is controlled by servo motor and the control mode is servo synchronous control, which can effectively ensure the positioning accuracy, fast speed and high controllability. The lubrication of the lead screw and guide rail adopts automatic lubrication, and the grease is 00#, which ensures the service life and precision of the lead screw and guide rail for a long time operation.
Static analysis results of the upper slider: the stress displacement kidney diagram of the upper table shows that the maximum stress appears in the upper part, the maximum stress is 152mpa, the maximum deformation appears in the upper end of the upper table, the maximum deformation is 0.15mm
Fig. 3 stress displacement analysis results of ram
According to the finite element analysis results of the ram, Q345 steel was selected as the material; CO2 shielded welding was used; tempering treatment was carried out to eliminate the stress caused by welding; thus ensuring the accuracy, stability and high rigidity of the equipment for long-term operation.
Bending unit
The power drive part of the bending unit is driven by a servo motor without the involvement of a hydraulic system, which has great advantages in terms of reducing wear and tear of components and transmission efficiency, in line with the energy saving and environmental protection policy advocated by the state.
According to the setting of the sheet information, the system automatically calculates the position of the upper press knife 3 and controls the distance between the upper press knife 3 and the lower press knife 4 to fix the sheet; according to the system setting, whether this bending is up or down, the lower press knife 2 or the upper press knife 1 is controlled to move quickly to the bending position; according to different setting angles, the bending knife is controlled to move to the calculated position through the patented angle calculation formula to complete the bending.
According to the different ways of bending, can be divided into angle bending, large arc bending, flattening bending, etc., which angle bending is divided into upward bending and downward bending.
Upper press unit
Fig.6 Upper press unit
The upper press unit: a part of all bending processes, the EmbC full servo multilateral bending centre is equipped with a special upper press unit that can be installed and manually adjusted for different plate lengths.
In order to meet the requirements of the avoidance bending box, we have developed a special avoidance die. Before pressing, the a part of the avoidance die is in the state before pressing in the diagram and the feeding starts. After feeding, it is in the state after pressing in the diagram and bending begins. After bending, the upper slider moves. During the movement of the upper slider, part A will automatically move to the state before pressing. After the upper slider has moved to the set position, the next movement begins.
Fig.7 Bending box avoidance
Tool
Bending tools are divided into upper bending tools and lower bending tools. Special bending tools can be customised according to the different requirements of the customer.
2.Plate feeding unit:
The movement, clamping and rotation of the sheet metal are controlled by the robot 1, the fixture 2 and the rotating disc 3 respectively. During the entire machining process, the feeding of the sheet metal is controlled by servo motors, enabling automation and fast positioning, reducing movement times and increasing efficiency. Thanks to the structural innovations and the application of full servo control, the clamping and rotation of the sheet metal is able to maintain accuracy throughout the working process of the multilateral bending centre. For many complex workpieces, even polygonal ones, a continuous rotation accuracy of 0.001 can be guaranteed.
3.Plate positioning unit ：
The plate positioning unit consists of a left positioning pin, a right positioning pin, a front positioning pin and a rear positioning pin; the left and right positioning pins position the plate to the left and right. The front positioning pin and the rear positioning pin control the front and rear position of the plate and ensure that the plate is parallel to the upper and lower press knives, which is used to ensure the positioning accuracy of the plate.
The plate positioning unit can automatically position the plate and automatically complete the multilateral bending at one time, which greatly shortens the bending cycle time, controls the shearing error of the plate at the first bending and ensures the accuracy of the bending.
4.CNC system
A: Jointly developed CNC systems and software can be applied and managed quickly and easily
B: Key features.
a) . EtherCAT bus control method with high interference resistance
b) Supports direct programming, bending data for each step can be entered in the form
c) Support for curved bending
d) Fully electric servo control
e) Support for bending compensation
f) Support for two-dimensional programming
2D programming function, import 2D DXF drawing data, automatically generate bending process, bending size, bending angle, rotation angle and other data. After confirmation, automatic bending processing can be carried out
List of main part
| No. | Name | Brand | Country |
| 1 | Frame | Wisdom | China |
| 2 | Tool | Wisdom designer and China supplier | China |
| 3 | Bending unit | Wisdom | China |
| 4 | CNC System | N-Press | China |
| 5 | Servo motor | Bystorm | Italy |
| 6 | Servo driver | Bystorm | Italy |
| 7 | Rail | Nanjing Technical Equipment and Rexroth | China and Germany |
| 8 | Ballscrew | Nanjing Technical Equipment and Rexroth | China and Germany |
| 9 | Reducer | STY Gear | Taiwan,China |
| 10 | Breaker | Schneider | France |
| 11 | Button | Schneider | France |
| 12 | Electrical part | Schneider | France |
| 13 | Cable | Echu | China |
| 14 | Proximity switch | Omron | Japan |
| 15 | Bearing | SKF/NSK/NAICH | Japan |
4）The design, manufacture, inspection and installation of the machine tool meet the following standards.
1、GB17120-1997
2、Q/321088JWB19-2012
3、GB14349-2011
Spare part and tool list
| No. | Name | Qt. | Remark |
| 1 | Tool box | 1 | |
| 2 | Install pad | 8 | |
| 3 | Inner hexagon spanner | 1 set | |
| 4 | Manual refueling gun | 1 | |
| 5 | CNC system manual | 1 | |
| 6 | open spanner | 1 |
The evolution of sheet metal bending machines:
Sheet metal panel benders have come a long way since their inception. Originally, hand tools were used to manually bend and shape metal panels, which required extreme skill and precision. However, with the advent of technology, automation has taken over this task, increasing accuracy, speed, and efficiency.
Meaning in industrial manufacturing:
1. Precision and accuracy:
Sheet metal panel benders play a vital role in achieving precise bending of various metal sheets. These machines are equipped with computer numerical control (CNC) systems that allow precise control of the bending process. This level of precision ensures each panel meets the required specifications and has consistent bends and angles.
2. Efficiency and Productivity:
By automating the bending process, sheet metal bending machines significantly increase efficiency and productivity. These machines can bend multiple panels simultaneously, reducing production time and increasing throughput. CNC programming capabilities allow manufacturers to store and replicate specific bending patterns, eliminating the need for time-consuming manual adjustments.
3. Versatility:
Sheet metal panel benders are designed to handle a variety of sheet metal materials such as aluminum, stainless steel, and galvanized steel. Their versatility allows manufacturers to easily produce products ranging from automotive parts to HVAC components.
4. Reduce material waste:
The precise bending capabilities provided by sheet metal bending machines significantly reduce material waste. This is crucial for modern manufacturing, where sustainability and minimizing environmental impact are becoming increasingly important. By optimizing sheet utilization and minimizing errors caused by manual bending, manufacturers can save resources and costs.
5. Stable quality:
End product consistency is critical for manufacturers to maintain reputation and customer satisfaction. Sheet metal panel bending machines ensure that every panel is bent with the same accuracy and precision, producing a consistently high quality product. This consistency helps manufacturers meet industry standards and increases customer trust and loyalty.
In conclusion:
To sum up, the sheet metal bending machine is an indispensable tool in modern industrial manufacturing. Their ability to deliver precision, efficiency, versatility and consistent quality is unparalleled in manual bending processes. These machines raise manufacturing standards, allowing companies to produce quality products faster while minimizing waste. As the demand for high-quality sheet metal components continues to grow, adopting the role of sheet metal bending machines has become a crucial step for manufacturers who want to stay ahead in the competitive market.
