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    • 7. 发明公开
    • WHEEL HUB TOOL POSITIONING FIXTURE
    • EP3715046A1
    • 2020-09-30
    • EP19196071.5
    • 2019-09-06
    • Citic Dicastal Co., Ltd.
    • Liu, LiboHe, Yudong
    • B23Q3/06B23B31/30B25B5/06
    • The disclosure relates to the technical field of automobile part machining, in particular to a wheel hub tool positioning fixture. The fixture comprises a machine frame, a driving mechanism, an air pump, a plurality of clamping members and receding assemblies. Each clamping member comprises a baffle, storage grooves and airbags. The storage grooves are formed in one side surfaces of the baffles, the airbags are arranged in the storage grooves and connected with the air pump, and the airbags protrude from the side surfaces of the baffles after being inflated and expanded. Each receding assembly comprises a connecting block, a sliding rod, an elastic member and two cushion blocks; the two ends of each sliding rod are each connected with the corresponding cushion block; the cushion blocks are driving by the driving mechanism to move in the radial direction of the machine frame; the connecting blocks are slidably arranged on the sliding rods in a sleeving mode; the elastic members are arranged on the sliding rods in a sleeving mode; and the bottom ends of the baffles are connected with the connecting blocks. According to the wheel hub tool positioning fixture, through soft contact between the airbags and a wheel hub, damage to the wheel hub due to high stress in the positioning process is avoided, the fixture can be applied to positioning of the wheel hub made of a soft aluminum alloy material, and the clamping and disassembling processes are convenient.