The common types of thread milling cutters in CNC drilling and tapping centers mainly include ordinary clip-on thread milling cutters, integral thread milling cutters, integral thread milling cutters with chamfering functions, thread drilling, and milling cutters, thread auger drilling and milling cutters.

Each type of tool has its own characteristics: the clip-on thread milling cutter is a low-cost tool used in thread milling. Its structure is similar to that of ordinary clip-on milling cutters. The composition of the blade; the integral thread milling cutter has a compact structure, which is more suitable for the processing of CNC machining centers and small-diameter threads;

The structure of the integral thread milling cutter with chamfering function is similar to that of the ordinary integral thread milling cutter, but there is a chamfering edge at the root (or end) of the cutting edge, which can process the thread end chamfer while processing the thread;

Thread drilling and milling cutter is a small and medium-diameter internal thread processing tool, which can complete drilling thread bottom hole, hole chamfering, and internal thread processing at one time, reducing the number of tools used; thread spiral drilling and milling cutter is also a tool for internal thread processing Solid carbide tools can also process bottom holes and threads at one time.

The reasons for the bearing problems of CNC drilling and tapping center are as follows:

1. Improper installation

1. Use brute force during installation, and directly hit the bearing with a hammer to damage the bearing; it is the main cause of deformation.

2. The installation is not in place, the installation deviates or the bearing is not installed, resulting in too small bearing clearance. The inner and outer rings are not at the same rotation center, resulting in non-concentricity.

Suggestion: choose appropriate or professional bearing installation tools, and use instruments to detect after installation.

2. Poor lubrication

According to the survey, poor lubrication is one of the main causes of premature bearing failure. The main reasons include: not filling lubricant or lubricating oil in time; not filling lubricant or lubricating oil in place; improper selection of lubricant or lubricating oil; incorrect lubrication method and so on.

Suggestion: choose the correct lubricant or lubricating oil, and use the correct lubrication filling method.

3. Pollution

Pollution can also lead to premature bearing failure. Pollution refers to the entry of dust, metal shavings, etc. into the interior of the bearing. The main reasons include: opening the bearing package prematurely before use, causing pollution; the working environment is not clean during installation, causing pollution; the working environment of the bearing is not clean, and the working medium being polluted.

Suggestion: Do not unpack the bearings before use; keep the installation environment clean during installation, and clean the bearings to be used; strengthen the sealing device of the bearings.

4. Fatigue

Fatigue damage is a common damage method for bearings. Common causes of fatigue damage may be long-term overloading of bearings; failure to repair in time; improper maintenance; equipment aging, etc.

Suzhou Shengji Intelligent Equipment Co., Ltd. is a CNC machine tool processing base established by Taiwan Tai Fuda in Suzhou based on the Chinese market. This product is mainly used in the aerospace industry, light industry, equipment industry, mold industry, and a series of mechanical processing. According to different customers’ requirements, our products are subdivided into several series, including a CNC Vertical machining center; CNC Gantry machining center; CNC Horizontal machining center; CNC High-speed engraving and milling machine; CNC drilling and tapping center; Special customized machine.