Cylindrical grinders are used to cut or cut very precise and delicate finishes on materials such as aluminum, cemented carbide, steel or other metals. They are especially used to work on cylindrical surfaces, rods or other cylindrical workpieces. The cylinder is located in the middle of the two centers and rotates in one direction, while the grinding wheel approaches in the opposite direction. This article will mainly introduce the types of cylindrical grinders.
The working method of the cylindrical grinder is very similar to that of the lathe. The only difference is that the lathe uses fixed cutting equipment, while the grinder uses a grinding wheel. Cylindrical grinding machines grind materials with a central axis of rotation, such as crankshafts.
In addition to the rapid rotation of the workpiece in opposition to the grinding wheel, the grinding wheel and the table on which the workpiece is placed will experience different movements. The grinding wheel moves up and down or left and right, and the worktable moves back and forth. Cylindrical grinding provides high precision and provides an excellent final finish.
What are the types of cylindrical grinders
Cylindrical grinder is a relatively common grinder equipment, and we can often see the application of this equipment in industrial production. Cylindrical grinders are divided into different types according to the working mode of the grinding wheel: plunge grinders, end grinders and universal cylindrical grinders.
Universal cylindrical grinders are ideal for tool room applications because they are versatile. Both the working head and the grinding wheel head can be rotated. It is possible to grind tapered surfaces by using some accessories and use this machine for internal, end and surface grinding. It can also be subjected to plunge-cut cylindrical grinding and cone plunge-cut grinding.
Plunge-type center grinders can be straight-inserted or angle-wheel sliding insert-cutting. These are basically mass production machines. The grinding wheel is inserted into the workpiece at a predetermined feed rate and withdrawn after the correct size is produced. The corner wheel slide table plunge machine is used to correctly complete the right-angled shoulder surface in one operation through the corner wheel.
The end surface cylindrical grinder can generally polish the outer surface of the device and the edges and corners of the entire device, and is suitable for surface processing of tapered products. Using this grinder for batch grinding can save time.
Cylindrical grinding process type
There are basically two types of external grinding processes, namely, external grinding and internal grinding. The two grinding processes are described in detail below.
Cylindrical grinding is a very common grinding process. This kind of grinding is mainly used for grinding rotationally symmetrical workpieces. Depending on the clamping type and feed direction of the workpiece, there are different methods for cylindrical grinding:
1. Peripheral cross grinding between centers (cut-in grinding)
2. Periphery between centers-longitudinal grinding (oscillation grinding)
3. Cross grinding without center (cut-in grinding without center)
4. Longitudinal grinding on the periphery without center (grinding through feed without center)
The common clamping method in cylindrical grinding is between the centers. For cylindrical grinding, larger or thinner workpieces must be fixed with stable brackets to meet the required geometry and shape.
Internal grinding is one of the very difficult grinding. There are different methods of internal grinding, mainly: peripheral lateral grinding (plunge grinding), and peripheral longitudinal grinding (oscillation grinding). The reason why the internal grinding operation is difficult is that there is a huge contact arc in the contact area between the grinding wheel and the workpiece hole. The vibration of the parts (high-frequency spindle, grinding mandrel) involved in the active grinding process is the wheel, workpiece and hole Geometry), which is difficult to control.
The article mainly introduces the types of cylindrical grinders. When you browse the full text, you can understand that cylindrical grinders are a relatively common grinder equipment, and we can often see the application of this equipment in industrial production. Cylindrical grinders are divided into different types according to the working method of the grinding wheel: plunge grinders, end grinders and universal cylindrical grinders.
