Auto Spring Feeding Grinding Machine

This Fully-Automatic Spring End Grinding Production Line is used to grind double-end surface of compression spring，Two vertical grinding wheels are used to grind spring in this machine.    Springs are seated in the holes of feeding plate with moving through the gap between two grinding wheels.   Feeding plate can bring grinding springs in high speed due to high revolution.

The system including auto grinding machine, auto spring feeding device /structure,  auto lifting device and Vibration box combine together via PLC controller.

Spring As a core basic component in machinery manufacturing, automotive, electronics, home appliance and other industries, the "feeding" and "grinding" processes in spring production are critical links affecting efficiency, precision and cost.   Under the traditional production mode, spring feeding mostly relies on manual sorting, arrangement and conveying, which suffers from low efficiency (manual sorting speed: approx.   20-30 pcs/min), high labor intensity, and frequent material mixing/missing;   while the grinding process is mostly semi-automatic, requiring manual assistance for positioning and flipping.   This not only results in poor grinding precision consistency (dimensional tolerance fluctuation > ±0.05mm) and substandard surface roughness, but also poses potential safety hazards for manual operations.   With the annual increase in labor costs, these issues have seriously restricted enterprises' capacity expansion and product quality upgrading.

Focusing on the core pain points of spring production, this project develops an integrated intelligent solution of "automatic feeding + automatic grinding".   By replacing manual intervention with automated technologies, it realizes full-process unmanned and high-precision operations from spring raw material conveying to finished product grinding.

(I) Automatic Feeding System

1.    Core Functions: Realize automatic sorting, directional arrangement and precise conveying of springs, compatible with various specifications (wire diameter: 0.1-5mm, outer diameter: 1-50mm) such as cylindrical springs, special-shaped springs and micro-springs.

1.    Key Technologies:

Adopt vibrating disk + visual recognition positioning technology: The vibrating disk achieves preliminary spring sorting through high-frequency vibration, and the CCD vision sensor accurately identifies the spring posture, ensuring a directional arrangement accuracy of ≥99.8%;

Equipped with a precision conveying track driven by a servo motor, the conveying speed is adjustable (50-200 pcs/min), seamlessly connecting with the grinding system without material accumulation or supply interruption;

Features material shortage warning and automatic shutdown protection for jamming, ensuring production continuity.

(II) Automatic Grinding System

1. Core Functions: Perform high-precision grinding on spring end faces and surfaces to remove burrs and oxide scales, improving surface finish and dimensional accuracy.

1. Key Technologies:

Multi-station grinding design (2-4 switchable grinding stations) supports simultaneous grinding of multiple springs, with grinding efficiency 3-5 times higher than manual operation;

Adopt diamond grinding wheel + frequency conversion speed regulation technology: According to spring materials (carbon steel, stainless steel, piano wire, etc.), the grinding pressure (0.1-1MPa) and rotating speed (500-3000rpm) can be precisely adjusted, with dimensional tolerance controlled within ±0.01-0.03mm and surface roughness Ra≤0.2μm;

Integrate automatic dust removal and cooling system to avoid grinding dust pollution and workpiece overheating deformation, while extending the service life of the grinding wheel.

(III) Intelligent Control System

The entire equipment is equipped with a PLC programmable logic controller + touch screen human-machine interface, supporting parameter presets, production counting, fault alarming and other functions;     it can be connected to the MES production management system to realize real-time uploading and remote monitoring of production data, facilitating enterprises' capacity statistics and quality traceability.

1. High Efficiency & Energy Saving: Full-process automated operation without manual intervention.     The daily output of a single equipment can reach 10,000-30,000 pieces, saving more than 30% energy compared with the traditional manual mode;

1. Stable Precision: Double guarantee through mechanical positioning and visual inspection ensures high consistency of grinding precision, increasing the product qualification rate from 85% (manual operation) to over 99%;

1. Flexible Adaptability: Rapid switching between production of springs of different specifications and materials, with commissioning time ≤30 minutes, meeting the needs of multi-variety and small-batch production;