Cylindrical grinder is widely used. It can process all kinds of cylindrical conical surface and shoulder face grinder. The external grinding machine also has an internal grinding accessory, which can grind the inner and outer conical surfaces with larger inner hole taper. However, the degree of automation of cylindrical grinder is low, and it is only suitable for small batch single piece production and repair work. The working idea is to grind cylindrical steel parts into precise concentricity grinder with two top centers as center and grinding wheel as cutting tool.
When cylindrical grinding is carried out in cylindrical grinder, there are several movements as follows:
1. The high-speed rotation of grinding wheel is the main motion of grinding outer circle.
2. The longitudinal reciprocating motion of workpiece with the worktable is the longitudinal feed motion of grinding outer circle.
3. The workpiece is driven by the headstock spindle, which is the circular feed motion of grinding the outer circle.
4. The grinding wheel makes periodic cross feed movement.
Cylindrical grinder is divided into cut in cylindrical grinder, end face cylindrical grinder, cylindrical grinder and heavy-duty cylindrical grinder
Plunge type cylindrical grinder: when the length of the grinding part of the workpiece is less than the width of the grinding wheel, the grinding wheel only needs to make continuous transverse feed and does not need to make relative axial movement with the workpiece. This kind of grinder has higher productivity.
Cylindrical grinding machine for end face: the grinding wheel frame is inclined at an angle around the vertical axis, and the grinding wheel surface is trimmed into two grinding surfaces parallel and vertical to the workpiece axis. It can simultaneously grind the outer circle and shoulder end face of the workpiece, which is generally used for mass production.
Cylindrical grinder: the grinding wheel frame is attached with internal grinding accessories. The grinding wheel frame and head frame can adjust an angle around the vertical axis. Besides the dial plate on the head frame, the spindle can also rotate. This kind of grinder can enlarge the processing range, grind the inner hole and outer cone with larger taper, and is suitable for small and medium batch production and single piece production.
Large and heavy cylindrical grinder: in order to reduce the length of the machine tool, the worktable is generally fixed, and the grinding wheel carrier makes longitudinal reciprocating motion and transverse feed motion.
In addition, there are cylindrical grinder with double grinding wheel frame and cylindrical grinder with multiple grinding wheels. They can grind two or more journal at the same time, which are suitable for mass production.
On 2018-08-08 11:45:46
