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Series Bending Machine Frequently Asked Questions

1. What is the lower-acting CNC bending machine?
   The lower-acting CNC bending machine is a kind of metal processing equipment. The bending operation is realized by the upward movement of the lower worktable driven by the hydraulic system. The stroke, bending angle and positioning position of the slider are precisely controlled by the numerical control system. It is widely used in automobile manufacturing, shipbuilding, aerospace and other industrial fields.

2. What are the main differences between the lower and upper CNC bending machines?

   Worktable movement direction: down-acting: lower worktable moves upward to complete bending; Up-acting: slider moves downward to process;
   Control system difference: down-type: using servo motor grating ruler to achieve closed-loop precision control;
   Mold replacement efficiency: down-acting: no mechanical zero can be directly replaced, higher production efficiency;
   Operation adaptability: shorter workbench design is more suitable for small workpiece operation habits.

3. What is the working principle of the lower-acting CNC bending machine?
   The high-pressure oil output from the hydraulic pump drives the oil cylinder to push the lower worktable upward to exert pressure on the plate, the grating ruler feeds back the position data in real time, and the CNC numerical control system realizes high-precision processing through closed-loop control.

4. What are the core components of the lower-acting CNC bending machine?
   It mainly includes: high rigidity frame, precision hydraulic transmission system, rapid mold change device, NC9/NC10 numerical control system, wedge deflection compensation mechanism, roller guide synchronization device and other key components.

5. What materials can be processed by the lower-acting CNC bending machine?
   Suitable for carbon steel, stainless steel, aluminum alloy, copper alloy and other metal plates, conventional processing thickness of 0.5-6mm (specific parameters to the equipment model).

6. How about the machining accuracy of the lower-acting CNC bending machine?
   The positioning accuracy is ± 0.02mm, the repeated positioning accuracy is ± 0.02mm, the straightness of the workpiece is 0.3 mm/m, and the bending angle error is ≤ ± 30 '(the parameters of different models may vary).

7. The typical application field of the down-acting CNC bending machine?
   Widely used in automobile manufacturing (body cover), ship construction (hull structure), aerospace (aircraft parts), power equipment (chassis cabinet), home appliance manufacturing (shell forming) and other precision sheet metal processing fields.