Internal thread grinder

The internal thread grinding machine (internal thread grinding center) can process various types of internal threads such as metric, imperial, trapezoidal, serrated, and arc-shaped (such as ball nuts). Usually, it has the ability to grind and match precision inner holes (reference holes) with threads, ensuring the coaxiality between the inner holes and threads.

Internal thread grinding machine (internal thread grinding center) is a precision machine tool specifically designed for high-precision grinding of internal threads of workpieces, especially adept at processing internal threads with high hardness and strict precision requirements. The core difference between it and external thread grinders (such as screw grinders) is that the machining space is limited (operated inside the hole) and the grinding wheel size is smaller and the rigidity is weaker.

1、 Working principle

The working principle of SK7620A internal thread grinder is based on precise mechanical transmission and high-speed rotation of the grinding wheel. It uses a specific feed system to allow the grinding wheel to grind the internal threads of the workpiece according to a preset trajectory. Its design allows the grinding wheel to penetrate deep into the interior of the workpiece and finely adjust various parameters of the internal thread, such as pitch and tooth profile.

From the technical parameters, SK7620A has excellent performance. Its grinding diameter range can meet the machining needs of various specifications of workpieces, whether it is small precision parts or medium-sized mechanical components, it can be within its machining capacity. The high-precision rotation of its spindle provides a stable power source for grinding, ensuring the machining accuracy of internal threads. The feed system also has high resolution and precise control, which can achieve micrometer level feed adjustment, ensuring smooth surface quality of the processed internal threads and meeting high industrial standards.

In practical applications, SK7620A internal thread grinder is widely used. In the automotive manufacturing industry, key parts such as the internal threads on the engine cylinder block and the threaded holes on the transmission housing require high-precision grinding to ensure the fit between components and improve the overall performance and safety of the car. In the field of mold manufacturing, for the internal thread processing of some complex shaped molds, it can also rely on its own technical advantages to create high-precision internal threads that meet design requirements, extend the service life of the mold, and improve the quality and accuracy of the formed products. In the aerospace field, high precision is required for components. The SK7620A internal thread grinder can provide reliable guarantees for the internal thread machining of key components such as aircraft engines and landing gear, and assist in the safe and reliable flight of aircraft.

2、 Application Fields

It has a wide range of applications in multiple fields, including but not limited to:

1. Aerospace: In components such as aircraft engines, internal threaded connections carry high temperature and high pressure working environments, which require high machining accuracy and surface quality of threads.

2. Automotive manufacturing: Internal threaded connectors also play an important role in automotive engines, transmissions, and other components, requiring high-precision machining.

3. Energy industry: In the energy sector such as oil and natural gas, it is used to process internal threads for various pipeline connectors and valve components.

4. Medical devices: In the manufacturing process of medical devices, it is also necessary to use it to process high-precision internal threaded components.

3、 Market Status and Development Trends

With the continuous development of the manufacturing industry, internal thread grinding machines, as an important component of precision machining equipment, have seen an increasing market demand. Meanwhile, with the continuous advancement and innovation of technology, it will develop towards intelligence, high precision, high efficiency, and green environmental protection. In the future, the application of more intelligent technologies will further improve machining accuracy and efficiency, reduce labor costs and intensity, and provide stronger support for the development of the manufacturing industry.

4、 Technical specifications and parameters:

Maximum installation diameter: 300mm

Maximum workpiece length: 200mm

Maximum grindable thread diameter: 200mm

Minimum grindable thread diameter: 25mm

Maximum length of grindable thread: 125mm

• Maximum travel length of workbench: 460mm

• Grindable thread pitch: 1-24mm

Maximum helix angle for grindable threads: 12 ° left and 10 ° right

Number of grindable threads: 1~45 (arbitrary)

• Headstock spindle speed: 0.2-100r/min

• Maximum speed of grinding wheel spindle: 24000r/min

• Grinding wheel size

Maximum diameter: Φ 100mm

Minimum diameter: Φ 25mm

• Machine tool dimensions (length x width x height): 2270x1550 x2000mm

Machine weight: approximately 5000kg

5、 Product Features

1. Efficient forming diamond roller dresser. Configure high-speed electric spindle.

2. The high-precision and efficient headstock doubles the rotational speed of the workpiece during grinding, greatly improving the machining efficiency of the machine tool.

3. Intelligent grinding software enables the machine tool to have specialized functions for thread grinders, such as automatic grinding cycles, automatic online dressing of grinding wheels, and automatic compensation for dressing amounts.

4. The machine tool has a single stroke or double stroke automatic cycle grinding function.

5. Users can choose the automatic tool alignment function.

6. Configure a centrifugal high-efficiency oil mist processor.