The development of grinding machine

Details:

Grinding machine, the grinder, grindingmachine) is the use of abrasive grinding workpiece surfaces of machine tools. Most of the grinding machine is the use of high-speed rotation of the grinding wheel for grinding, the minority is the use of abrasive, abrasive belt and other abrasive tool and free abrasive machining, such as honing machine, superfinishing machine tools, abrasive belt grinding machine, grinding machine, polishing machine, etc.

The development course

In the 30 s of the eighteenth century, in order to adapt to such as clocks and watches, bicycles, sewing machines and gun parts after hardening processing, Britain, Germany and the United States developed the use of natural abrasive grinding wheel grinding machine respectively. The grinding machine is ready at the time of machine tools such as lathe, planer, mounted above the grinding head and the transformation, which has simple structure, low stiffness, prone to vibration grinding, require operators must have a high skill to grind out the precision of the workpiece.

Exhibited in Paris exposition of 1876 America's brown - sharp company universal cylindrical grinder, has the basic features of modern grinder machine is the first time. Its head and tail of workpiece installation in reciprocating movement of the worktable, box bed has improved stiffness of the machine, and with inner circle grinding accessories. In 1883, the company made grinding head is installed on the column, the workbench make reciprocating movement of surface grinding machine.

Around 1900, the development of artificial abrasive and the application of hydraulic drive, has a great role on the development of grinding machine. With the development of modern industry especially auto industry, various types of grinder successively. At the beginning of the 20th century, for example, has developed the planetary internal grinder machining of cylinder block, crankshaft grinding machine, CAM shaft grinding machine and magnetic chuck ring grinding machine, etc.

Automatic measuring device was started in 1908 to the grinding machine. By around 1920, centerless grinder, double end face grinding machine, roll grinding machine, rail grinding machine, honing machine and superfinishing machine tool and so on have been made to use; S again for mirror grinding of high precision cylindrical grinding machine; 60 s was made between the grinding wheel linear velocity of 60 ~ 80 m/s high speed grinding machine and cutting deep, slow feed grinding surface grinding machine; In the 70 s, using microprocessor digital control and adaptive control technology has been widely used in the grinding machine.