Flexible fixture for surface milling and drilling of fan bracket and clamping and positioning method

A flexible clamp, support and positioning technology, applied in the field of vehicle parts processing, clamping and positioning, can solve problems such as being unsuitable for fan bracket clamping, and achieve the effect of simple and easy-to-operate clamping methods, reducing development costs, and shortening development cycles.
CN113199269AActive Publication Date: 2021-08-03东风汽车动力零部件有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
东风汽车动力零部件有限公司
Publication Date
2021-08-03

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Abstract

The invention discloses a flexible fixture for surface milling and drilling of a fan bracket and a clamping and positioning method. The flexible fixture comprises a bottom plate, and the bottom plate is provided with a first positioning pressing block assembly capable of moving in the X direction, a second positioning pressing block assembly capable of being adjusted in the Y direction, a third positioning pressing block assembly capable of being adjusted in the X direction and the Y direction respectively, and at least three height-adjustable support positioning pin assemblies. The first positioning pressing block assembly is used for actively positioning and clamping a positioning point on the first side face of the fan bracket, the second positioning pressing block assembly is used for passively positioning and clamping two positioning points on the second side face of the fan bracket, and the third positioning pressing block assembly is used for pre-tightening, positioning and clamping a positioning point on the third side face of the fan bracket. When the flexible fixture is used for surface milling and datum hole drilling of fan bracket products, quick clamping switching of machining of different types of products can be achieved, the manufacturing number of fixtures in the product sample stage is reduced, the sample development period is shortened, and the development cost before product shaping and mass production is reduced.
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Description

technical field

[0001] The invention belongs to the processing, clamping and positioning technology of vehicle parts, and in particular relates to a surface milling and drilling fixture technology of a vehicle fan support. Background technique

[0002] The fan bracket is used to install and fix the fan blade in the bearing hole of the bracket, and the fan bracket is fixed on the engine. Different engines have different fan brackets. Due to the irregular shape of the fan bracket, when milling and drilling the fan bracket, usually a set of milling and drilling jigs can only be used on a fan bracket of one shape, and the manufacturing cost of the jig is huge . At the same time, when the design of the fan bracket is changed, and the shape and size change greatly, the fixture can no longer be used.

[0003] CN201820649592 records a drilling and milling fixture for automobile parts, including a fixture bottom plate, four support rods are arranged on the upper surface of the fix...

Claims

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