Grinder is a kind of machine tool which uses grinding tools to grind the surface of workpiece. Most grinders use high-speed rotating grinding wheel for grinding, while a few use oilstone, abrasive belt and other abrasives and free abrasives for processing, such as honing mill, superfinishing machine tool, abrasive belt grinder, grinding machine and polishing machine.
With the increase of the number of high precision and high hardness mechanical parts, and the development of precision casting and precision forging technology, the performance, variety and output of grinding machine are constantly improving and increasing.
Grinding machine processing range:
The grinder can process materials with high hardness, such as hardened steel and cemented carbide, and brittle materials such as glass and granite. The grinder can be used for grinding with high precision and small surface roughness, as well as rate grinding, such as strong grinding.
Grinding machine characteristic requirements
According to the motion characteristics and process requirements of grinding machine, the following requirements are required for electric drive and control: 1. The rotation motion of grinding wheel generally does not require speed regulation, which can be driven by a three-phase asynchronous motor, and only requires one-way rotation. When the capacity is large, the Y-triangle can be used to start. 2. In order to ensure the machining accuracy, make it run smoothly, and ensure that the worktable has small inertia and no impact when reversing, hydraulic transmission is used to realize the reciprocating motion of the worktable and the cross feed of the grinding wheel box.
The main classification of grinders can be divided into the following categories:
1. Cylindrical grinder: it is the basic type series of ordinary type, mainly used for grinding cylindrical and conical external surface.
2. Internal grinder: it is a basic series of ordinary type, mainly used for grinding cylindrical and conical inner surface. In addition, there are both internal and external grinding machine.
3. Tool grinder: grinder for grinding tools.
4. Guide rail grinder: mainly used for grinding machine tool guide surface grinder.
5. Abrasive belt grinder: grinding machine with fast moving abrasive belt.
6. Coordinate grinder: internal grinder with precise coordinate positioning device.
7. Grinder: it is used to grind the inner and outer surface of workpiece plane or cylinder.
8. Honing machine: mainly used for processing various cylindrical holes, but also for processing conical holes, elliptical holes, cycloidal holes.
9. Centerless Grinder: the workpiece is clamped by centerless, which is generally supported between the guide wheel and the bracket. The guide wheel drives the workpiece to rotate. It is mainly used for grinding cylindrical surface. Such as bearing shaft support, etc.
10. Surface grinder: it is mainly used for grinding the surface of workpiece. a. Hand grinder is suitable for small size and high precision workpiece processing. It can process all kinds of special-shaped workpiece including arc surface, plane, groove, etc. b. The large water grinding machine is suitable for the processing of large workpieces, with low machining accuracy, which is different from the hand grinder.
11. Multi purpose grinder: it is used for grinding cylindrical, conical inner and outer surface or plane, and can grind various workpieces with servo device and accessories.
12. Special grinding machine: it is used for grinding certain parts. It can be divided into spline shaft grinder, crankshaft grinder, cam grinder, gear grinder, thread grinder, curve grinder and so on.
13. Grinder face grinder: a grinder for grinding the end face of gears.
On 2018-08-08 11:45:46
