What are the requirements for customization of fiber bottom die processing equipment?

The customization of fiber bottom die processing equipment should focus on three cores: fiber material characteristics (such as carbon fiber, glass fiber and aramid fiber), bottom die forming process (molding, pouring and vacuum adsorption), bottom die accuracy and service life, so as to meet the production requirements of high strength, low deformation, temperature resistance and pressure resistance. The specific customization requirements are as follows:

Requirements of processing system for adapting fiber materials

Tool and spindle configuration: fiber material (especially carbon fiber) has high hardness and is easy to produce dust, so it is necessary to customize diamond coated tools or carbide special tools to avoid tool wear too fast; Spindle speed should be adjustable (recommended 10,000–24,000 r/min), low speed should be used for rough machining to remove allowance, high speed should be used for finishing to ensure surface smoothness, and the spindle should be equipped with dust-proof sealing structure to prevent fiber dust from entering the interior and causing sticking.

Dust suction and dust prevention design: the equipment needs to be integrated with high-pressure vacuum dust collection system, and the processing area should be equipped with a sealed dust cover. The dust suction port is close to the tool processing position, so as to suck fiber dust in time to avoid dust accumulation affecting the processing accuracy and protect the health of operators.

Meet the structural requirements of bottom die precision and molding process.

Stiffness and stability of the fuselage: the fiber bottom die (such as composite die) requires extremely high machining accuracy (positioning accuracy ≤±0.01mm, repeated positioning accuracy ≤±0.005mm), and the equipment fuselage needs to adopt cast iron integral casting structure and be equipped with reinforcing ribs to reduce precision deviation caused by machining vibration; The working table should be hardened with hardness ≥HRC55 to prevent the deformation of the table during long-term processing.

Molding process adaptation function

If it is used for molding bottom die processing: it is necessary to customize a large load-bearing workbench (bearing ≥500kg) to adapt to the clamping of large bottom die; Equipped with multi-axis linkage system (3-axis/5-axis optional) to meet the processing requirements of complex curved surface bottom die.

If it is used for vacuum pouring bottom die processing: the equipment needs to support high-precision cavity processing, ensure the size consistency of the sealing groove and positioning hole of the bottom die, and avoid the problem of glue leakage during pouring.

Temperature control and wear protection requirements

Temperature control of processing area: Fiber materials are easily deformed due to friction and heat generation during processing. The equipment needs to be equipped with air cooling or water cooling temperature control system to control the temperature of processing area at 20-25℃ to ensure the size stability of the bottom die.

Protection of guide rail and transmission parts: the guide rail needs to be equipped with a stainless steel telescopic shield, and the lead screw adopts a fully sealed structure to prevent fiber dust from entering the gap between the guide rail and the lead screw and reduce the transmission accuracy; High-precision ball screw and linear guide rail are selected as transmission parts to improve the running stability of the equipment.

Customized auxiliary function requirements

Customization of clamping system: according to the size and shape of the bottom die, a special fixture or vacuum adsorption workbench is customized, and the small precision bottom die is clamped by vacuum adsorption (the adsorption force is adjustable) to prevent the fixture from damaging the surface of the bottom die; The large bottom die is clamped by multi-point pressure plate to ensure that the clamping is firm and without deformation.

Automation integration requirements: If mass production is needed, we can customize the automatic feeding and unloading system and the automatic tool change function of the tool library, and cooperate with the PLC control system to realize the storage and call of machining parameters and improve production efficiency.

Data traceability function: equipped with industrial control system to record the processing parameters (tool model, rotation speed and feed speed) of each bottom die, which is convenient for quality traceability and process optimization.

Adapt to the production environment and maintenance requirements

The equipment shall be provided with anti-corrosion coating, especially for the wet or chemical workshop to prevent the fuselage from rusting;

Sufficient maintenance space is reserved, and the wearing parts such as tools and guide rails need to be disassembled and assembled conveniently, so as to reduce the later maintenance cost;

If it is used in explosion-proof workshop, the explosion-proof electrical system needs to be customized, and the components such as motor and control cabinet meet the requirements of explosion-proof grade.