Types of Grinders and Classification of Grinding Machines
In this article, we will learn about Types Of Grinders and Classifications Of Grinding Machines. Grinding machine is mostly used for the grinding process.
The grinding machine is classified as follows.
1. Rough grinding machine
a) Pedestal grinders
b) Bench grinder) Rough grinders
c) Portable grinders
d) Belt grinders
e) Swing frame grinder
2 Precision grinding machine
a) Cylindrical grinders
b) Centerless grinders.
c) Surface grinders
d) Tool and Cuttegrinders
e) Planetary type.
Grinders used to remove excess metal from the work surface are rough grinders. The amount of metal being emitted is important, not the surface finish. Rough grinders are used to remove chips and sharp edges on casting forging.
a) Pedestal Stand Grinder
This type of grinding machine, called the pedestal grinder, is placed on the floor. Each grinding wheel is fitted to either side of the spindle in the electric motor.
The wheel on one side is fitted with grind abrasives and the other is a fine grind wheel for sharpening the finishing and cutting tools on the other. The work rest is fitted to support the workflow while grinding.
b). Bench Grinder
This is called Bench Grinder because the Grinder is mounted on the Bench. Two grinding wheels are mounted on either side of the motor. The wheel is covered by Guard. The work rest is set to support the workflow while grinding. Bench Grinder is used for grinding hand tools and small objects.
c. Portable Grinder
It is a small type of Grinder that can be handled by hand. You can easily take it anywhere. A small electric motors fitted to the grinding wheel in the shaft of the motor. It is used for grinding, casting, and welded join to finishing work.
d. Belt Grinder
The abrasive belt is used in place of the grinding wheels. In between this belt is fitted to Pulleys. Pulley is connected to Motor. The Abrasive belt rotates along with the motor when the motor is rotated.
e. SwingFrame Grinder
In this type of grinder, a 2 to 3-meter long horizontal frame hangs in the middle of it. Grinding whee with motor at one end of the frame and balancing weight at another end. A handle is attached to the tip of the wheel. Using this handle, the wheel is moved over the workpiece and ground.
SwingFrame Grinder is used for grinding on heavy workloads that are heavy and easy to move.
2. Precision Grinding Machine
The precision grinder is the name for the machine that makes the most accurate finish grinding. There are many types of Precision Grinding machines such as Cylindrical Grinder, Internal Grinder, Surface Grinder, Tool, and Cutter Grinder. These are used for precise grinding of Cylinder bore, Gages, Gears, Kames, etc.
i) Cylindrical Grinder (external center type)
Cylindrical grinding is the name for cylindrical workpiece grinding. Its important parts
1. Base or Bed
2. Table
3. Headstock and tailstock
4. Wheel head
1. Base
Base made of cast iron bears all parts such as headstock, wheel head, and table. The table and driving mechanism are located inside the nest.
2. Table
The table is set to move from left to right and from right to left. You can move by hand and move automatically through the Automatic feed. The table is made up of layers, the base of which moves through the way of the guide. Grinding can be done in a workpiece to get the table surface straight or rotated to a + 10 ° taper.
Tables are used by dogs to control the length of a stroke, the length of which is moving, and the left and right sides. Probably moving the table with Hydraulic Power makes it easier to change the speed, stroke size, and move the table without shock.
3. Headstock and tailstock
The headstock is a setting used to hold and rotate workflows. Lathe headstock Curro G headstock spindle fitted in chuck center. There is also the ability to change the speed of the spindle in the headstock. During grinding, one end of the workpiece is held in the headstock and the other end is held by the tailstock center. You can place the table where it is needed.
4.Wheel Head
The wheel head is a Grinding wheel and electric motor driven by it. The guide in the table gives the speed of the wheel wise by moving the wheel head perpendicular to the hand or by the automatic mechanism.
ii) Center type plain cylindrical grinding.
Cylindrical grinding is the name for grinding a cylindrical workpiece. Its important parts
1. Base or Bed
2. Table
3. Headstock and tailstock
4. Wheel head
1. Base
Base made of cast iron bears all parts such as headstock, wheel head, and table. The table and driving mechanism are located inside the nest.
2. Table
The table is set to move from left to right and left to right. You can move by hand and move automatically through the Automatic feed. The table is made up of two layers, the base of which moves through the way of the guide.
Grinding can be done in a workpiece to get the table surface straight or rotated to a + 10 ° taper. Tables are used by dogs to control the length of a stroke, the length of which is moving, and the left and right sides. Probably moving the table with Hydraulic Power makes it easier to change the speed, stroke size, and move the table without shock.
3. Headstock and tailstock
The headstock is a setting used to hold and rotate workflows. The headstock is fitted with a spindle in the chuck or center, just like the Lathe headstock. There is also the ability to change the speed of the spindle in the headstock. During grinding, one end of the workpiece is held in the headstock and the other end is held by the tailstock center. You can place the table where it is needed.
4. Wheel Head
The wheel head is a Grinding wheel and electric motor driven by it. The guide in the table gives the speed of the wheel wise by moving the wheel head perpendicular to the hand or by the automatic mechanism. Universal Grinding Machin has the following facilities which are not in the center type universal grinder Plain cylindrical grinding machine.
Headstock center can be used as live center or dead center. It can also work with the chuck. You can adjust the headstock section to a certain angle. Grinding the workflow at the desired angle is easy. Feed the grinding wheel to the desired angle and feed it in the same direction. Internal Grinding Nets are equipped with a special layout.
iii) Centerless Grinding
Centerless grinding is the method of grinding the grinding wheel between two grinding wheels that rotate between the chuck or the center to center. Cylinder taper cylinder workpieces can also be finished with centerless grinding. Applies only to the smallest workstations. Perfect for doing so with a great deal of uniformity.
One of the wheels in the centerless grinding machine is the grinding wheel and the other is the regulating wheel. Both wheels rotate in the same direction. Between these two is the work rest to hold the workpiece. The grinding work by rotating between two wheels.
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