Principio de funcionamiento
La máquina de biselado de vidrio de forma irregular adopta el principio de molienda por fricción mecánica. Mediante el accionamiento del motor, la rueda abrasiva gira a alta velocidad. El vidrio de contorno especial se fija sobre la mesa de trabajo. El movimiento relativo entre la rueda abrasiva giratoria y el borde del vidrio elimina el material sobrante del borde del vidrio, consiguiendo el efecto de biselado, redondeado y pulido del borde de contorno irregular del vidrio. Algunos modelos están equipados con sistema de seguimiento por plantilla o sistema de control numérico CNC, para realizar el seguimiento automático del contorno del vidrio y completar el procesamiento de bordes de formas complejas.
Proceso de trabajo
- Preparación: Limpiar la superficie del vidrio, comprobar la integridad de la rueda abrasiva y ajustar la velocidad de giro, la presión de procesamiento y la posición de la mesa de trabajo de la máquina.
- Fijación de la pieza: Colocar el vidrio sobre la mesa de succión al vacío o dispositivo de fijación, fijarlo firmemente para evitar desplazamientos durante el procesamiento. Para máquinas con plantilla, instalar la plantilla correspondiente según la forma del vidrio.
- Molienda gruesa: La rueda abrasiva de molienda gruesa entra en contacto con el borde del vidrio, elimina rápidamente la rebaba y el exceso de material del borde bruto, y forma la forma básica del borde. Se suministra agua de refrigeración durante todo el proceso para refrigerar la zona de molienda y eliminar los residuos de polvo de vidrio.
- Molienda fina: Cambiar a la rueda abrasiva de molienda fina, optimizar la rugosidad superficial del borde, corregir la desviación de la forma del borde.
- Pulido: Utilizar la rueda de pulido para procesar el borde, hasta que el borde del vidrio obtenga una superficie lisa y brillante sin arañazos.
- Finalización: Detener la máquina, retirar el vidrio procesado, limpiar los residuos de polvo de vidrio y comprobar la calidad del borde procesado.
Ruedas abrasivas utilizadas
- Rueda abrasiva de diamante para molienda gruesa: Se usa para molienda gruesa inicial, elimina rápidamente el exceso de borde y rebabas del vidrio, alta capacidad de corte.
- Rueda abrasiva de diamante para molienda fina: Para el acabado intermedio, reduce la rugosidad superficial del borde y corrige la precisión del contorno.
- Rueda de pulido de resina / rueda de pulido de cerio: Especializada en el pulido final, consigue el efecto brillante del borde de vidrio.
- Rueda de moldeo de diamante: Para conformar bordes especiales como bordes redondeados, bordes biselados, adaptada al procesamiento de contornos irregulares.
Working Principle, Process and Grinding Wheels of Special-shaped Glass Edging Machine
1. Working Principle
The special-shaped glass edging machine operates based on the mechanical friction grinding principle. Driven by a motor, the grinding wheel rotates at a high speed. The special-contour glass is firmly fixed on the worktable. The relative motion between the high-speed rotating grinding wheel and the glass edge removes excess materials from the glass edge, realizing edging, rounding and polishing of irregular glass edges. Some models are equipped with template tracking systems or CNC numerical control systems, which can automatically track glass contours and complete the processing of complex-shaped edges efficiently and accurately.
2. Working Process
Step 1: Preparatory Work
Clean the surface of the glass to remove dust and impurities. Inspect the integrity and wear condition of the grinding wheels, and adjust the machine’s rotating speed, processing pressure and worktable position to ensure the equipment is in normal working condition.
Step 2: Workpiece Fixing
Place the glass on the vacuum suction table or special fixing device and clamp it stably to avoid displacement or vibration during processing. For template-type edging machines, install the matched template according to the actual shape of the glass workpiece.
Step 3: Rough Grinding
The rough grinding diamond wheel contacts the glass edge to quickly remove raw edge burrs and redundant materials, forming the basic contour of the glass edge. Cooling water is continuously supplied throughout the process to cool the grinding area and wash away glass powder residues, preventing high-temperature damage to the glass and grinding wheel.
Step 4: Fine Grinding
Replace with a fine grinding wheel to further process the glass edge. This step optimizes the surface roughness of the edge, corrects contour deviations generated during rough grinding, and improves the dimensional accuracy and flatness of the edge.
Step 5: Polishing
Use a professional polishing wheel for final finishing treatment. The edge surface is processed to be smooth, scratch-free and glossy, meeting the finished product’s appearance and quality standards.
Step 6: Finishing and Inspection
Stop the machine and take out the processed glass. Clean the equipment and residual glass powder on the worktable, and inspect the edge processing quality, shape accuracy and surface finish of the finished glass.
3. Applicable Grinding Wheels
3.1 Rough Grinding Diamond Wheel
It is used for primary rough grinding procedures. With strong cutting capacity, it can quickly remove glass raw edges, burrs and excess materials, and efficiently shape the basic outline of special-shaped glass edges. It is the core grinding tool for preliminary processing.
3.2 Fine Grinding Diamond Wheel
Applied to the intermediate finishing process. It effectively reduces the surface roughness of the glass edge, fixes contour errors after rough grinding, and lays a flat and uniform foundation for subsequent polishing procedures.
3.3 Resin / Cerium Oxide Polishing Wheel
Dedicated to the final polishing process. It can eliminate tiny scratches on the glass edge, make the edge surface smooth and transparent, and achieve a high-gloss mirror effect, which determines the final appearance quality of the glass edge.
3.4 Diamond Forming Wheel
It is specially designed for special-shaped edge forming processing, suitable for manufacturing rounded edges, beveled edges and other special edge shapes. It features high forming accuracy and good adaptability for complex irregular glass contour processing.