There are many types of internal grinding machines, and the chief editor of grinding tools and grinding machines will introduce some common internal grinding machines and their related knowledge to you.
This introduction brings you general content related to internal cylindrical grinding machines, planetary internal cylindrical grinding machines, and centerless internal cylindrical grinding machines. We hope to be helpful to you.
Although these common knowledge about machine tools is not well-known in daily life,
But if you are a friend in the industry, it still cannot be separated from this aspect. Today, let's take it seriously together. The following article will be shared by Mingxin Machine Tool for you.
General internal grinding machines:
The workpiece is clamped by a chuck mounted on the spindle of the headstock for circular feed motion, and the worktable drives the grinding wheel holder to move longitudinally back and forth along the bed guide rail (see machine tool guide rail),

The head rest moves horizontally along the sliding saddle (see machine tool); The head rest can also rotate around the vertical axis to a certain angle to grind the tapered hole.
Planetary internal grinding machine:

During homework, the workpiece is fixed and stationary. In addition to high-speed rotation around its own axis, the grinding wheel also rotates around the axis of the hole being processed to complete circumferential feed,

It is suitable for grinding large workpieces or workpieces that are not suitable for rotation, such as cylinder blocks of internal combustion engines.

Centerless internal grinding machine:

During homework, the outer circle of the workpiece is supported on a roller or support block, and the end face of the workpiece is sucked by a magnetic chuck and driven to rotate, but it can slightly float to ensure the concentricity of the inner and outer circles.

The maximum grinding wheel speed of a small-sized internal grinding machine can reach tens of thousands of revolutions per minute.

The internal cylindrical grinding machine used in mass production requires a high degree of initiative. During the grinding process, a plug gauge or micrometer can be used to actively control the scale.

What are the characteristics of CNC internal grinding machines

Numerical control technology refers to the technology of using numerical instructions composed of numbers, text, and symbols to complete the motion control of one or more mechanical equipment.

CNC internal grinding machine is a type of machinery controlled by CNC technology, which has the following nine characteristics:,

1. The CNC inner circle grinder is a two axis linkage vertical CNC inner circle, which can grind inner holes, small end faces, and multi-stage holes with one clamping.

2. The high-power electric grinding head is selected for the internal grinding head of the machine tool, and the stop frequency converter drive is used.


3. All guide rails are made of high-precision and high vibration resistant Swiss Schneider roller guides.

4. The machine tool control system adopts Siemens, and the feed shaft is driven by Siemens servo motor to drive the ball screw.

5. The workpiece spindle adopts high-precision large touch angular ball bearings, and the workpiece speed is AC variable frequency and stepless speed regulation.

6. The grinding machine guide rail and ball screw are actively lubricated by the lubrication station. And there is a sealed cover for protection.

7. The machine tool can be equipped with a multi point pitch circle positioning basin tooth active fixture and various specialized fixtures with a cylinder as the power source of the fixture.

8. The machine tool scale control adopts fixed range grinding, and can be equipped with grating ruler closed-loop control. Recommended reading: Processing methods and characteristics of centerless grinding machines

9. The coolant is filtered using precision filtering equipment made of magnetic and paper materials.