Gear press-mounting fixture
A press-fitting and fixture technology, which is applied in the direction of manufacturing tools, workpiece clamping devices, metal processing, etc., can solve problems such as complex processing, and achieve the effects of low investment cost, reduced processing difficulty, and reasonable and reliable structural design
Inactive Publication Date: 2013-10-09
CHINA NAT HEAVY DUTY TRUCK GROUP DATONG GEARCO
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Problems solved by technology
[0003] The present invention provides a gear press-fitting jig to solve the problem of complex processing existing in the press-fitting of existing assembly-type gears
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[0009] The gear pressing fixture includes a base 1 fixed on the machine tool. The lower part of the outer circumference of the base 1 is provided with an elastic telescopic positioning rod I2 which is symmetrical to the axis of the base 1. The upper part of the outer circumference of the base 1 is provided with a Symmetrical elastic telescopic positioning rod II3, the axis of the base 1 is provided with a guide mandrel 4, the guide mandrel 4 is pierced with a pressure head 5 located above the base 1, the front end of the elastic telescopic positioning rod I2 is a conical round head, The front end of the elastic telescopic positioning rod II3 is a duckbill-shaped structure.
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The invention relates to the field of machining, in particular to a gear press-mounting fixture having a tooth space central position requirement. The gear press-mounting fixture solves the problem that assembly type gears are complex in press-mounting. The gear press-mounting fixture comprises a base, the base is fixed on a machine tool, a first elastic stretchy positioning rod which is symmetrical with the axis of the base is arranged on the lower portion of the outer circumferential face of the base, a second elastic stretchy positioning rod which is symmetrical with the axis of the base is arranged on the upper portion of the outer circumferential face of the base, a guide mandrel is arranged on the axis of the base, a pressure head which is located above the base is sleeved on the guide mandrel, the front end of the first elastic stretchy positioning rod is a tapered round head, and the front end of the second elastic stretchy positioning rod is a duckbilled structure. The gear press-mounting fixture is reasonable and reliable in structure and design, gears can be mounted in a pressing mode accurately, requirements for angles of tooth spaces are guaranteed, machining difficulty is lowered, input cost is low, and good economical benefits are obtained. Further, the gear press-mounting fixture has the advantages of being simple in structure, good in manufacturability, reliable, stable, and convenient and fast in operation.
Description
technical field [0001] The invention relates to the field of mechanical processing, in particular to a gear press-fitting jig with a requirement for the center position of a tooth groove. Background technique [0002] At present, the assembly gear is milled with a waist-shaped groove on the outer circle of one gear, and a single key is drawn on the other gear. A flat key connects the two gears together to ensure the cogging angle requirements between the two workpieces after assembly. This structure is generally used in domestic engine design, such as Shanghai Diesel Engine Factory, Dalian Diesel Engine Factory and Wuxi Diesel Engine Factory have similar products. This structural design has no strict requirements on the press-fitting fixture, as long as the two gears are press-fitted together, but the gear processing is more complicated. Contents of the invention [0003] The present invention provides a gear press-fit fixture in order to solve the problem of relatively ...
Claims
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IPC IPC(8): B23P19/02B25B11/02
Inventor 赵立志杨国斌钱勇军
Owner CHINA NAT HEAVY DUTY TRUCK GROUP DATONG GEARCO
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