2D Wire Bending Machine + CAD Import: Customized Production Solution for Petal-shaped Fabric Lamp Shades

Ⅰ. Equipment Overview

Equipment Name: 2D Wire Bending Machine + CAD Import System

Industry Positioning: Specifically designed for manufacturing skeletons of petal-shaped fabric lamp shades, integrating CAD digital design with automated wire bending technology to achieve seamless transformation from design drawings to finished wire skeletons. Through precise bending of 3-8mm iron wires, it solves problems like inconsistent petal arcs and insufficient skeleton strength in traditional manual production, providing standardized and artistic skeleton support solutions for high-end fabric lamps.
Technical Core: Equipped with CAD drawing import function, it directly reads .dwg/.dxf design files and automatically generates wire bending trajectories. Combined with a 4-axis servo system, it achieves millimeter-level forming of complex curves such as petal shapes and waves, with a production efficiency of 5-8 pieces/min.

Ⅱ. Analysis of Core Technical Parameters and Performance

(1) Electrical and Power System

(2) Mechanical Forming System

• Straightening and Wire Feeding Components:
  • Number of straightening wheels: Configured with multiple straightening wheels (specific quantity to be supplemented), combined with Cr1MOV material wire feeding wheels (finely polished and heat-treated, hardness 58°), ensuring iron wire straightness error <0.3mm.
  • Number of wire feeding wheels: 3 groups, made of wear-resistant Cr1MOV material, providing stable wire feeding without slipping, compatible with 3-8mm round/flat/square wires.
• Bending Molds:
  • Number of molds: 18 groups, made of national standard Cr12 material, finely processed by SKD11/51, hardness 58-62°, suitable for complex bending requirements such as petal arcs and sharp corners, with a mold life of over 100,000 times.
  • Number of axes: 4-axis linkage (wire feeding axis + bending axis + cutter axis + lifting axis), supporting up-down movement and 360° rotation of inner/outer molds to achieve 3D bending for petal edges like wave and spiral shapes.

(3) Precision and Efficiency Indicators

• Production Efficiency: 5-8 pieces/min (petal-shaped lamp shade skeletons), reaching 12-15 pieces/min for 200*200mm square frames, improving efficiency by over 5 times compared to traditional manual work.
• Forming Precision:
  • Bending precision ±0.5mm ensures consistency of petal arcs;
  • Wire feeding precision ±0.5mm guarantees interface 吻合度 for multi-petal skeleton splicing;
  • Flatness <0.5mm meets the flatness requirement after fabric lamp shades are stretched.

Ⅲ. Core Advantages of CAD Import System

1. Design Flexibility:
   • Directly imports CAD design drawings without manual programming. Designers can adjust parameters like petal quantity, arc, and sharpness in AutoCAD, and the system automatically generates wire bending programs, reducing model change time from 2 hours to 10 minutes.
   • Supports 300-action combination settings and stores 4,000 groups of production data for quick switching between mass production and customized orders.
2. Precision Visualization:
   • After importing drawings, the system simulates wire bending trajectories in real time. The 3D preview function avoids design interference in advance, ensuring the error between the finished product and the drawing <0.3mm, especially suitable for high-end lamp shades with strict petal symmetry requirements.
3. Process Intelligence:
   • Built-in iron wire material deformation compensation algorithm automatically adjusts bending speed and pressure according to 3-8mm wire diameters, avoiding cracking for large diameters or deformation for small diameters, with weld strength reaching over 80% of the base material.

Ⅳ. Application Scenarios: Full-Process Solutions for Petal-shaped Lamp Shades

• Core Skeleton Components:
  • Petal main body: Designs 6-12 petals with different arcs via CAD, using 360° rotating bending function to achieve 0.5mm-level precision at petal tips, ensuring clear outlines after fabric covering.
  • Lamp shade support ring: 30-700mm diameter ring forming, welded with petal skeletons to form an overall support structure with flatness <0.5mm, preventing fabric wrinkling.
• Derivative Applications:
  • Special-shaped lamp shades: Bionic lamp shade skeletons like butterfly and maple leaf shapes, achieving non-symmetrical curve forming through CAD import;
  • Decorative components: Iron wire lace edges and hanging brackets for lamp shades, supporting flat/square wire bending to enhance product artistry.
    

Ⅴ. Technical Specifications Table