Gear hobber sharpening machine

Abstract

The invention discloses a gear hobber sharpening machine comprising a machine frame (1), a moving platform (2), a gear locating tool and a grinding machine (3). Guide rails (4) are installed on the machine frame (1). A sliding seat (5) is arranged below the moving platform (2). The sliding seat (5) can move along the guide rails (4). The left end and the right end of the moving platform (2) are provided with ejector pin devices (6) respectively. The gear locating tool comprises a gear shaft (7). The gear shaft (7) abuts against the two ejection pin devices (6). The right end of the gear shaft (7) is provided with an index plate (8). The index plate (8) is provided with grooves (9), and the number of the grooves (9) is equal to that of the number of teeth of a gear. A locating column (10) is further arranged on the moving platform (2). A locating piece (11) is installed on the locating column (10). The thin-walled end of the locating piece (11) is arranged in the corresponding groove (9) in an abutting mode. The gear hobber sharpening machine has the advantages that clamping is convenient, operation is easy, and the abrasion amount is small.

Description

technical field [0001] The invention relates to a grinding machine, in particular to a gear hob grinding machine. Background technique [0002] The gear hob is equivalent to a helical gear with a small number of teeth and a large helix angle. The cutting gear is equivalent to a large gear. The gear hob is a helical gear with a large helix angle β0 and a small number of thread heads (1 to 3 teeth). The teeth are very long and can circle many circles around the hob indexing cylinder. This is like a worm with a very small helix angle γz. In order to form the cutting edge, several chip flutes are milled along the axis on the end face of the worm to form the front and rake angles; after shoveling and relief grinding, the flanks and relief angles are formed. [0003] However, after the gear hob is used many times, its blade will be worn out. In order to save production costs, it is necessary to grind the gear hob to form a new blade that meets the requirements; in order to repai...

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Problems solved by technology

[0003] However, after the gear hob is used many times, its blade will be worn out. In order to save production costs, it is necessary to grind the gear hob to form a new blade that meets the requirements; in order to repair the gear hob, the existing market Numerical control hob grinding machines have appeared in the world, but this kind of equipment is relatively expensive for small-scale enterprises, because the number of gear hobs to be repaired is small, and its cost performance is low, and the existing CNC hob grinding machines are relatively expensive. machine, it is inconvenient to clamp, and when repairing, the wear of the gear hob is relatively large, generally about 0.5mm, thus shortening the service life of the gear hob

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