Gear broaching key positioning fixture

Abstract

The invention discloses a gear broaching key positioning fixture. By the adoption of the gear broaching key positioning fixture, the precision of a key groove can be guaranteed, and the angle between the key groove and teeth can reach the standard. According to the technical scheme, the left end of a fixture body (1) of the gear broaching key positioning fixture is connected with a horizontal broaching machine, and a mandrel at the right end of the fixture body (1) is matched with an inner hole of a gear (4); a guiding body (2) is connected and clamped to the fixture body (1) through screws (7) and positioning pins (8), grooves are formed in the middle of the fixture body (1) and in the middle of the guiding body (2), and a broaching tool (5) reciprocates along the grooves to machine the gear; a positioner (3) is installed on the fixture body (1), the position where the positioner (3) is fixed is adjusted according to the angle of a gear which is machined firstly until the angle between the key groove (6) and a marking tooth (9) is within the range of +/-10 minutes, and then the positoiner (3) is tightened. The gear broaching key positioning fixture has the advantages that the manufacturing cost is low, and using is easy and convenient; readjustment is not needed after adjustment is conducted once, and the stability is high; the gear can be assembled and disassembled conveniently, rapidly and efficiently, and the average time for assembling or disassembling a part is only five seconds.

Description

technical field [0001] The invention relates to a gear processing jig, in particular to a gear pull key positioning jig. Background technique [0002] Taper hole fit is widely used in the connection of engine pump gears because of its good neutrality, adjustable fit clearance or interference, good sealing, and convenient assembly and disassembly. However, taper hole fit alone cannot meet the requirements, and often A keyway is also added to the taper hole to ensure its bonding strength, but the processing of the keyway is very inconvenient, it is difficult to ensure the accuracy, and the angle requirements between the keyway and the teeth are also difficult to guarantee. Contents of the invention [0003] The invention discloses a gear pull key positioning fixture, which is used for a horizontal broaching machine and ensures that the accuracy of the key groove and the angle between the key groove and the tooth meet the technical requirements. [0004] In order to achieve ...

AI Technical Summary

Problems solved by technology

[0002] Taper hole fit is widely used in the connection of engine pump gears because of its good neutrality, adjustable fit clearance or interference, good sealing, and convenient assembly and disassembly. However, taper hole fit alone cannot meet the requirements, and often A keyway will also be added to the taper hole to ensure its bonding strength, but the processing of the keyway is very inconvenient, it is difficult to ensure the accuracy, and the angle requirements between the keyway and the teeth are also difficult to guarantee

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