Views: 33 Author: Site Editor Publish Time: 2018-05-11 Origin: Site
First, the function of bending machine: Bending machine is a kind of equipment to process the sheet into various angles; After adding the numerical control function, it effectively improves the processing precision and production efficiency.
Second, commonly used bending tools Category:
1. Upper mold Mold type Outline drawing Main use Remarks Straight knife See the figure below. Machining an angle greater than or equal to 90° Machete See the following figure Machining an angle greater than or equal to 90° Sharp knife See the following figure Machining an angle greater than or equal to 30°
2.Drawing mold type Outline drawing Main use Remarks Single V lower mold See below Figure 1. When the V-shaped angle is 86° (reference value), an angle greater than or equal to 90° can be machined. 2. When the V-shaped angle is 30 ° (reference value), the angle can be processed more than 30 ° fast bending machine used in the lower die for this type double V lower die see the following figure AMADA bending machine used die for this type
Third, the bending tool segmentation:
The length of the tool under normal conditions is 835mm; to facilitate bending of different lengths, the entire long tool is often divided into the following sections: 10+15+20+40+50+100+100+200+300=835
Fourth, the corresponding relationship between plate thickness and groove width:
By convention, the slot width is 6 times the plate thickness. The table thickness and groove width of Wanjiayuan are as follows: Material thickness (mm) 1.0 1.2 1.5 2.0 2.5 Bending machine width (mm) 6 6 8 12 16
Fifth, according to the above table processing when the minimum bendable size (injected bend size with plate thickness):
Plate thickness (mm) 1.0 1.2 1.5 2.0 Minimum size when bending L (mm) 4.5 4.7 6 8.5 Minimum size when bending Z (mm) 7 7.4 9 12
Sixth, convention al bending sequence:
1. Short-edge first and then long-edge: Generally speaking, when all four sides are bent, folding the short side and then folding the long side is beneficial to the processing of the workpiece and assembly of the bending die.
2. First in the periphery and then in the middle: Under normal circumstances, it usually starts at the periphery of the workpiece and then folds to the center of the workpiece.
3. First partial and overall: If there are some structures inside or outside the workpiece that are different from other bends, generally these structures are bent before folding the other parts
4. Consider the interference situation and reasonably arrange the bending sequence: The bending sequence is not fixed, and the processing sequence should be appropriately adjusted according to the shape of the bending or the obstacle on the workpiece.
Seven, bending operation precautions:
1. When bending operation, always pay attention to personal safety, and pay attention to the following points: A. When the device is in the open state, do not reach through the knife edge of the bending machine to adjust the back gear;
you should go directly to the back of the device to adjust. When processing parts, the human body should be outside the range of the parts to avoid scratching the body. C. When machining large workpieces, it is best for the human body to stand on the side of the workpiece in order to operate D. Always support the workpiece to avoid breaking the workpiece or smashing it. Injury to the human body E. The human body must stand firm during operation and cannot affect the balance of the body due to the movement of the workpiece. F. When operating close to the knife edge, both hands must abut on the appropriate position of the lower mold to prevent the fingers from accidentally reaching into the knife edge. The removed tool can not be placed on the bending machine, nor can it rest on the bend to prevent the tool from falling and damaging the human body. H. When installing the tool, make sure that the tool has been tightened before separating the upper and lower molds. I. When removing tools , It is necessary to hold the knife with both hands to separate the upper and lower molds. Consider wearing protective shoes.
2. When bending, pay attention to ensure the integrity of the mold and equipment: A. When installing the tool, always pay attention to the gap between the upper and lower mold must be within the normal range B. When installing the tool, make sure that the tool has been tightened before the upper and lower mold Separation C. After the mold is mounted, it is necessary to check whether the lower mold is fastened to avoid damage to the tool D due to displacement of the lower mold. After the mold is mounted, develop the habit of air running. During the test run, follow the upper and lower molds. Minimum gap check data input is correct Aluminum plate bending knowledge aluminum plate is easy to break after bending, or after an anodizing after bending a good burst, many of my customers are so confused, and later found me, after several adjustments on OK. What will happen
if it does not break?
First of all, let's take a look at some of the main reasons leading to aluminum sheet breakage after bending and precautions:
1. Hardness of aluminum plate. Aluminum plate hardness is too high, it is easy to break. This requires a good choice of aluminum, mainly depends on the aluminum grades and status. Generally 1 series, 3 series, 5 series are more commonly used; 6 series, 7 series of hardness is too high, it is necessary to do the annealing to O state before bending.
2. The thickness of the aluminum plate. Too thick aluminum plate is not easy to bend. Everyone thinks that they will use a thin aluminum plate.
3. Bending R angle size. The larger the bend R angle, the higher the success rate, so try to adjust the larger the bend R angle.
4. Aluminum plate grain direction. The bending direction should be perpendicular to the direction of the aluminum plate lines and cannot be parallel.