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CNC bending machine

CNC bending machine

CNC bending machine
This machine is suitable for large pieces of steel structure, tower, street lamp pole, high lamp, automobile beam, automobile vehicles and other related industries.

 

CNC bending machine characteristic
CNC Bending Machine
WE67Yk series CNC Bending machine The characteristics of:
The main use of WE67YK series plate bending machine structure; by SDS - 3PB bending machine closed loop NC system, two grating ruler, a real-time detection photoelectric encoder feedback, stepper motor drive wire rod full closed loop control. Two Grating ruler ; a pair of rear stopper, a pair of slider position detection feedback correction; photoelectric encoder of cylinder die block detects the position feedback control system.
1, direct view programming, with angle compensation function.
2, real-time detection of grating feedback correction, closed-loop control, after the block and slide die block positioning accuracy for the 0.02mm.
3, the upper mould adopts the quick clamping device, die with inclined wedge deformation compensation mechanism.
4, with multi step programming function, can realize automatic operation, complete the multi-step parts processing, improve production efficiency.
5, according to the needs of the user can choose the stable performance, compact structure of the hydraulic system, after the expected choice of ball screw and synchronous belt transmission.

 

CNC bending machine Operation rules
1 machine tool and strictly abide by the rules of safe operation in accordance with the provisions of ward, wear labor protection supplies.
To carefully check the motor, switch, circuit and ground is normal and stable before the start of 2, the control site inspection equipment, the button is in the correct position lag.
3 check on the coincidence degree and strong mould; check the positioning device meets the processing requirements.

Machine tool (5)
4 in the skateboard and the positioning shaft is not in the origin of the state, running back to the origin of program.
5 after the start-up equipment idle 1 - 2 minutes, skateboard full stroke movement 2 - 3 times, if there is abnormal sound or failure should stop immediately, troubleshooting everything isnormal.
6 when 1 people by the unified command, the operator and the feeding pressing personnel closely, ensure personnel are issued in a safe location side bending signal.
7 bending plates must be compacted, in order to prevent bending of sheet up.
8 adjustable sheet metal mould must cut off the power, stop running.
The 9 opening in the changing die, any material and lower contact is not allowed.
10, the machine is not allowed to stand on the back.
11 prohibited alone in the end pressure plate material.
12 when running the workpiece or mould is not found, should stop correction, prohibit the use of hand correction operation to prevent hand injury.
13 prohibit super thick iron or fold quenched steel, high alloy steel, square steel and more than the performance of plate bending machine of sheet metal, so as not to damage the machine.
Coincidence degree 14 often check the upper and lower mold; pressure gauge instructions are in accordance with the provisions.
15 abnormal immediately shut down, check and promptly eliminate.
16 before the shutdown, on both sides of the cylinder mold bottom placed on the skateboard fell topieces will block.
17 the first exit control system, cut off power supply.

 

Buy CNC bending machine knowledge
CNC bending machine workpiece
The first important issues worth considering is that you want to produce parts, the point is to buy a table to complete the processing tasks and the shortest, the minimum machine tonnage.
Carefully consider the material processing and the maximum thickness and length. If most of the work is low carbon steel with thickness of 16 gauge, the maximum length of 10 feet, then the bending force will not be larger than 50 tons. However, if in the bottom of dies. The forming, may be considered a 150 ton machine.
Well, assuming the thick material is 1/4 inches, 10 foot free bending needs 165 tons, while for the die bending (bending correction) needs at least 600 tons. If most of the workpiece is 5 feet or less tonnage almost halve so as to greatly reduce the cost of purchase. The length of parts is very important to determine the new machine specifications.

 

CNC bending machine Deflection
Under the same load, 4 feet 10 times machine table and slider appear deflection is 5 feet machine. That is, the shorter the machine requires less gasket can produce qualified parts. Reduce gasket adjustment andshorten the time. Material is one of the key factors. Compared with the low carbon steel, stainless steel to load is increased by about 50%, while most brands of soft aluminum reduction of about 50%. You can get there from the machine bending machine manufacturers at the tonnage table, the table shows estimated tonnage in different thickness and materials under each foot length required.

 

Parts of the bending radius
Using free bending, bending radius of die opening is 0.156 times. In the bending process, the die opening distance should be 8 times the thickness of metal material. For example, opening a 1/2 inch from forming 16 gauge low carbon steel, parts of the bending radius is about 0.078 inches. If the bending radius is almost to the material thickness, shall be carried out for the die forming. However, for the die forming the required pressure is about 4 times larger than the free bending.
If the bending radius is smaller than the thickness of the material, the punch radius should be used in front of less than the thickness of the material, and turn to stamping bending method. So, you need 10 times in bendingstress.
Free bending, Punch and Die According to 85 degree or less than 85 degrees of processing (small as well). Use this set of mold, pay attention to the gap punch and die in the bottom of the stroke, and to keep the material springback compensation and 90 DEG bending.
Usually, the springback free bending die bending machine produced in the new angle less than 2 degrees, the bending radius is equal to 0.156 times the die opening distance.
As for the die bending die angle is generally 86 ~ 90 degrees. At the bottom of the trip end, there should be a slightly larger than the thickness of the material between the punch and die clearance. The forming angle can be improved, because for the die bending of large tonnage (about 4 times of bending free), reduce the range of bending radius usually stress caused by the springback.
For the die stamping bending and bending of the same, but the bending radius of front-end processing to the punch and die clearance, the bottom end of the stroke is less than the thickness of the material. Due to exert enough pressure (about 10 times the free bending force) punch front contact material, basically to avoid the rebound.
In order to select the lowest number specification, the best bending radius is larger than the thickness of the material plan, and as far as possible using free bending method. The bending radius is large, often does not affect the use and quality of the future.

 

CNC bending machine accuracy
The bending precision is a factor that needs careful consideration, it is this factor decision you need to consider the hand control bending machine bending machine or a CNC. If the bending precision of + 1 degrees and can not be changed, you must focus on the CNC machine.
CNC bending machine slider repeat accuracy is + 0.0004 inches, forming a precise angle should be used in such precision and good die. Slide bending machine precision manual is + 0.002 inches, the deviation but also in the use of a suitable mold conditions will usually produce + 2~3 degrees. In addition, CNC bending machine for fast loading mode ready when you need many small batch parts bending, this is considered a reason to allow all doubt.

 

CNC bending machine mould
Even if you are full of mould shelf, do not think that the mould suitable for the new machine. Must check the wear each piece mold, is measured between the punch nose to shoulder length and shoulder length.
For the conventional mold, each foot deviation should be within 0.001 inches, and the total length deviation is less than 0.005 inches. As for the grinding precision mold, each foot should be 0.0004 inches, the total precision of not more than 0.002 inches. The best grinding mold for CNC bending machine, mold used in conventional manual bending machine.

 

Bending length of CNC bending machine
Assuming a 10-gauge low carbon steel plate along the 5 x 10 feet bending 90 degrees, bending machine must be added about 7.5 tons of pressure plate to top up, and the operator must be 280 pounds of straight edge whereabouts ready. This part may need several robust and strong workers and even a crane. The bending machine bending parts often need long side, are not aware of how hard they work.
Now there is a support device suitable for this job in the workshop, the device can be modified according to the needs of new and old machines. Using this device, forming long edge parts only one operation.
CNC system E200 DA41 DA51 DA53 DA56 by DA65 DA66
Assuming a 10-gauge low carbon steel plate along the 5 x 10 feet bending 90 degrees, bending machine must be added about 7.5 tons of pressure plate to top up, and the operator must be 280 pounds of straight edge whereabouts ready. This part may need several robust and strong workers and even a crane. The bending machine bending parts often need long side, are not aware of how hard they work.
Now there is a support device suitable for this job in the workshop, the device can be modified according to the needs of new and old machines. Using this device, forming long edge parts only one operation.
CNC system E200 DA41 DA51 DA53 DA56 by DA65 DA66

 

CNC bending machine operation method
1, the first is connected to the power supply, open the switch on the control panel, and then start the pump, so you can hear the sound of the pump rotation. (this machine does not move)
2, travel adjustment, use must pay attention to adjust the itinerary, the former must in bending test. It's the upper die downward to the bottom must ensure that there is a thick clearance. Otherwise it will cause damage to the mold machine. Adjustment of the trip is also a rapid adjustment of electric.
3, bending notch, notch in general to choose the thickness 8 times the width of the. Such as plate bending 4mm, need to choose about 32 slot. 4, after the block adjustment generally has electric quick adjustment and manual tuning method, with shears.
5, on the pedal switch started to bend, CNC bending machine tooling and cutting machine is different, can loosen, loosen the foot to stop, continue down on.

 

The description of the cnc bending machine structure
CNC bending machine slider
The slider part of the hydraulic drive, the slider part by the slider, the cylinder and the mechanical block trimming structure. About the cylinder is fixed on the frame, through the hydraulic piston (rod) drives the slider up and down movement block by CNC system control numerical mechanical stop.
CNC bending mahcine workbench
Table: button box manipulation, the motor drives the gear rack to move back and forth, and by the CNC system control the moving distance, the minimum reading for 0.01 mm (both before and after the position limit switch)
Synchronous system of CNC bending machine
Synchronous system: unlike ordinary bending machine, the machine uses the servo valve and the grating hydraulic device to form a closed loop circuit, a variety of actions to achieve accurate control of bending machine
Stopping mechanism
Stopping mechanism: gauge using motor drive, through the chain operation driven synchronous mobile two wire rod, numerical control system of material block size.

 

CNC bending machine accuracy
CNC bending machine slider repeatability is + 0.0004 inches, forming a precise angle should be used in such precision and good die. Manual slider bending machine repeat accuracy is + 0.002 inches, and generally produce deviation + 2~3 degrees would be used in a suitable mold conditions. In addition, CNC bending machine for fast loading mode ready when you need many small batch parts bending, this is considered a reason to allow all doubt.

 

Want to know more,please visit www.pressbrakemachine.net

Pub Time : 2016-05-19 17:42:54 >> News list
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