A CNC gear hobbing machine

Abstract

The invention relates to a machining device, in particular to a numerically-controlled gear hobbing machine. The numerically-controlled gear hobbing machine comprises a lathe bed, a large stand column, a small stand column and a worktable. A tool rest is arranged on the large stand column in a sliding manner. A mechanical arm is arranged on the small stand column. A hopper-shaped chip discharging groove is formed in the lathe bed. A chip discharging space is arranged below the hopper-shaped chip discharging groove. The numerically-controlled gear hobbing machine further comprises a protection plate which comprises an upper protection plate, a lower protection plate and a plurality of moving protection plates arranged between the upper protection plate and the lower protection plate. The upper end of the upper protection plate is fixed to the bottom of the tool rest, and the bottom end of the lower protection plate is fixed to the lathe bed. A spiral chip discharging device is arranged in the chip discharging space. According to the numerically-controlled gear hobbing machine, the structure is compact, the chip discharging speed is high, the chip discharging effect is good, and the stability of a machine tool is ensured; the telescopic integrated protection plates are arranged below the tool rest, so that damage is not likely to occur, the size is small, and the service life is long; and the machining efficiency of the gear hobbing machine is high, efficiency is high; and the safety performance is good.

Description

technical field [0001] The invention relates to a mechanical processing equipment, in particular to a numerically controlled gear hobbing machine. Background technique [0002] Gear hobbing machine is the most widely used machine tool in gear processing machine tools. It can cut straight teeth and helical cylindrical gears on the gear hobbing machine, and can also process worm gears, sprockets, etc. The hob can process straight teeth, helical teeth and Gear processing machine tools for herringbone cylindrical gears and worm gears. When using special hobs, this machine tool can also process various special tooth-shaped workpieces such as splines and sprockets. Existing gear hobbing machines have been widely used in various machinery manufacturing industries such as automobiles, tractors, machine tools, construction machinery, mining machinery, metallurgical machinery, petroleum, instruments, aircraft and spacecraft, but with the rapid development of my country's economy, for ...

AI Technical Summary

Problems solved by technology

[0003] When the traditional gear hobbing machine is cutting, the leather tiger protection plate is usually installed in the cutting processing area to avoid the safety hazard caused by the flying iron filings, but the leather tiger protection plate is large in size, inconvenient to use and short in life; the hydraulic oil tank is placed outside the bed, It makes the hydraulic system more complicated; in addition, there is a funnel-shaped chip removal groove inside the bed, and the scrap iron chips after cutting directly slide into the chip removal groove, and then enter the chip removal space. However, when the bed is longer or the cutting When the speed is relatively fast, chips will accumulate in the chip removal space, resulting in difficulty in chip removal and thermal deformation of the bed, affecting the processing efficiency and accuracy of the gear hobbing machine

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