There are many types of internal grinders, and the chief editor of abrasive grinders introduces you to some common internal grinders and their related common sense.
In this introduction, we will bring you the content related to general internal grinders, planetary internal grinders and centerless internal grinders. I look forward to helping you.
Although the common sense of these machine tools is not known on weekdays,
But if you are a friend in the industry, you still can't get away from this aspect. Today we will pay attention to it. The following article will tell you.
General internal grinder:
The workpiece is clamped by the chuck mounted on the headstock spindle for circular feed movement.
The headstock moves laterally along the sliding saddle (see machine tool); the headstock can also be turned to a certain angle around the vertical axis to grind the cone hole.
Planetary internal grinder:
The workpiece is fixed during operation, the grinding wheel rotates around the axis of the hole to be processed in addition to the high-speed rotation around its own axis to complete the circumferential feed,
It is suitable for grinding large workpieces or workpieces that are not suitable for rotation, such as cylinder block of internal combustion engine.
Centerless internal grinder:
When working, the outer circle of the workpiece is supported on the roller or the support block. The end face of the workpiece is attracted by the magnetic chuck and driven to rotate, but it can float slightly to ensure the concentricity of the inner and outer circle.
The rotation speed of the grinding wheel of small-size internal grinder can reach up to several hundred thousand revolutions per minute.
Internal grinders used in mass production have a higher degree of initiative. During the grinding process, plug gauges or micrometers can be used to actively control the scale.
What are the characteristics of CNC internal grinder
Numerical control technology refers to the technology that uses digital instructions composed of numbers, words and symbols to complete the motion control of one or more mechanical equipment.
CNC internal grinder is a machine controlled by CNC technology, it has the following nine characteristics,
1. The CNC internal grinder is a two-axis linkage vertical CNC internal circle, which grinds the inner hole, small end face and multi-step hole at a time.
2. The internal grinding head of the machine tool adopts high-power electric grinding head, and the drive of the stop frequency converter is selected.
3. All guide rails use high-precision, high vibration resistance Swiss Schneider roller guide rails.
4. The machine tool control system uses Siemens, and the feed axis is driven by the Siemens servo motor to drive the ball screw.
5. The workpiece spindle uses high-precision large-touch diagonal ball bearings, the workpiece speed is AC frequency conversion, and stepless speed regulation.
6. The grinding machine guide rails and ball screws are actively lubricated by the lubrication station. It is protected by a sealed enclosure.
7. The machine tool can be equipped with a multi-point pitch circle positioning pot tooth active fixture and various special fixtures with cylinder as the power source of the fixture.
8. The machine tool scale control uses fixed-range grinding, and optional grating ruler closed-loop control.
9. Coolant filtration uses magnetic and paper-based precision filtration equipment.
