Grinding Machine

A.DEFINITIONS GRINDING MACHINE
Grinding machine is a process of smoothing the surface used at the stage of finishing with a very small tolerance area that this machine should have a very sturdy construction.

B.TYPE GRINDING MACHINE
1.Hands Grinding Machine. 
 Hand grinding machine is a machine that serves to grind the workpiece. Originally intended only for grinding machine workpiece in the form of a hard metal such as iron and stainless steel. Grinding can aim to hone the workpiece such as a knife and chisel, or can also aims to establish workpiece such as spruce cutting results, smoothing welds, forming arches on angular workpieces, workpiece surface prepared for welded, and others.
 Grinding machine is designed to produce a speed of around 11000-15000 rpm. With the speed of the grinding stone, which is composed of aluminum oxide with appropriate roughness and violence, can erode the metal surface to produce the desired shape. With those speeds as well, grinding machines can also be used to cut metal objects using grinding stones devoted to cutting. To determine the composition of the content of the grinding wheel suitable for body work can be seen on the grinding wheel specifications article.

2Sitting Grinding Machine.
The main function is to sit grinding drill bit sharpening, but it can also be used to sharpen other knives, such as sharpening kitchen knives, machetes, axes, sickles, plowshares, knives and other utensils.
In addition to honing, grinding can also sit down to establish or create new tools, such as creating a special knife to whittle bamboo, making sewing machine parts, making screwdrivers or other tools to repair the turbine and other machines.

Drill Machine

A.DEFINITION OF DRILL MACHINE 
Drilling machine is a kind of machine rotating cutting tool feeds the direction of the drill bit at the axis of the machine (working perforation). While Drilling is the operation produces a round hole in the piece-work by using a rotating cutter called the BOR.

 B.Modes-TYPE DRILL MACHINE
 1.Drill table 
Drilling machine drilling machine table is laid out on the table. This machine is used to make holes with small diameter workpiece (limited to a diameter of 16 mm). Table drilling machine working principle is passed on to the electric motor rotation shaft so that the shaft spinning machine. Furthermore, as well as the shaft rotates the drill bit holder can be moved up and down with the help of gears and straight tooth rack that can adjust the pressure while drilling feeds.

 2. Hand drilling machine (gun) 
Hand drilling machine drilling machine that is operated by hand and looks like a pistol. Hand drill machines are typically used to pierce wood, metal plate or wall. Special drilling machine is also used to make holes can also be used to tighten the screws and remove the bolt as it comes two round the right and left. Drilling machine is available in various sizes, shapes, capacities and their respective functions.

 3. Radial drilling machine
 Radial drilling machine specifically designed for drilling work objects that are large and heavy. The machine is mounted directly on the floor, while the machine table has been permanently attached to the foundation or the base engine. In this machine the workpiece does not move. To achieve the drilling process of the workpiece, the main axis is shifted right and left and can be moved up and down through the rotation of threaded rod.

 4.Upright machine (Vertical Drilling Machine)
 Used to do the work piece with the larger sizes, where the funeral of the drill bit can be automatically controlled up and down. In the drilling process, the main shaft is driven up and down as needed. Table can be rotated 3600, tied his desk along the axis of the threaded rod machine, so that the table can be moved up and down by moving the crank.

 5.Drill coordinate machine 
Coordinate boring machine is basically the same principle with the other drilling machines. The difference there is in drilling position control system. Coordinate boring machine used to create / enlarge the hole with a center point and diameter spacing between each hole size and high accuracy. To obtain a high accuracy measures are used to set the combination table in the direction of longitudinal and transverse direction with the help of an optical system. Accuracy and precision of the size of the optics can be set up sisitem reach 0.001 mm tolerance.

 6.Drill floor machine 
Floor boring machine drilling machine is mounted on the floor. Floor boring machine boring machine also known as the column. Another type of drilling machine drilling machine floor is a desk propped up by supporting rods. Drilling machines are typically designed for drilling work objects are large and heavy.

 7.Drilling machine alley
This drill machine has more than one spindle, usually a table with four spindle. This machine is used to perform multiple operations at once, making it more fast for mass production there are 20 or more spindle with a drive head.