HOW TO CHOOSE A SET OF APPROPRIATE HOLDERS

In mold processing, surface accuracy is the most important. Choosing a set of appropriate tool holders has a great impact on the realization of high-quality surface-cutting processing. It is necessary to consider the tool holders characteristics and equipment conditions comprehensively, so as to achieve the best design and processing requirements.

?

In the high-precision surface processing of the mold surface, the value of the tool holder is insignificant compared with the value of the complete set of processing centers, but it is an important bridge connecting the machine spindle and the tool and has an important impact on the processing quality.

?

In modern large high-speed processing equipment is increasingly applied to the production process, how to choose the right tool holders to adapt to the improvement of the machine spindle speed, and processing out high precision mold surface, technical personnel must consider the various characteristics of the tool holders, especially in the high-speed clamping and radial beating error accuracy and dynamic balance quality, this is beneficial to reduce the vibration of the tool itself. In addition, the radial beating error accuracy of the general handle is less than 3 μ m. For the consideration of the spindle beating error of the machine tool, the combination of the low-weight spindle, tool holders, and the tool is conducive to obtaining a better cutting effect.

?

Generally speaking, customers will put forward clear requirements for the cutting effect of the tool holder because different systems have different technical characteristics and advantages, and according to the customer's special application purposes, can find a very perfect tool clamp system.

?

At present, hydraulic tool holders and heat-shrink tool holders produced by Bright-tools?have been greatly welcomed in the industry. The hydraulic tool holder is a widely used chuck, some customers use special tool clamping solutions due to special processing requirements, but most applications are possible.

This tool holder grip method is different from the traditional tool holder system. Tightening only requires a pressurized bolt. When the bolt is tightened, the sealing block of the piston will produce a hydraulic oil pressure in the knife tool holder, which is evenly transmitted from the circular direction to the steel expansion sleeve, and the expansion wall clips the tool.

With this tool clamp system, the accuracy can be controlled below 3 μm. Due to the high-pressure oil pressure in the knife tool holder, when the tool is clamped, the hidden oil cavity structure and the existence of high-pressure oil greatly increase the structural damping, which can effectively prevent the vibration of the tool and the machine spindle. Practical application shows that the clamping system can not only improve the machining accuracy and quality but also multiply the service life of the tool in cutting.

The Bright-tools heat shrink fit tool holder is divided into two series: one is the thick wall thickness increased, used for aerospace industry heavy load strong milling tool support. The other is a thin-walled, lengthened thin wall, used for mold deep cavity processing.

Features of the tool are very small (≤0.003mm); large clamping force; compact and symmetrical structure, small shape size, suitable for deep cavity processing; can adapt to high-speed rotation; suitable for finishing and rough machining; the central cooling effect is good for high cutting speed and feed, which can improve the quality of the machining surface and increase the life of the tool and main shaft.