Processing fixture and assembling method for long-hinge part

Abstract

The invention provides a processing fixture for a long-hinge part, and the processing fixture comprises a fixture main body, an end part drilling template, a plurality of sliding drilling templates and a clamping piece, wherein the fixture main body is provided with a first locating surface and a second locating surface; the first locating surface is positioned on the end part of one side of the fixture main body; the second locating surface is vertical to the first locating surface and roughly extends in parallel to the horizontal plane; the end part drilling template is positioned on the first locating surface of the fixture main body and is provided with a first guide hole; each sliding drilling template is positioned on the second locating surface of the fixture main body, is provided with a second guide hole corresponding to the first guide hole of the end part drilling template and is also provided with an opening capable of containing the boss of a long hinge; and the second guidance hole is used for processing the boss, which is contained in the opening, of the long hinge. In the processing fixture, a horizontal boring fixture is adopted to make chip removal relatively smooth so as to guarantee that the processed part has better surface roughness.

Description

technical field [0001] The invention relates to a processing fixture, in particular, to a processing fixture and an assembly method for positioning a long hinged part with a plurality of bosses. Background technique [0002] In the processing of conventional hinged parts, stamping dies are usually used, which can be punched out on a punching machine. However, for long hinged parts, due to the large number of holes, the hole pitch tolerance is easy to accumulate, so the coaxiality is difficult to guarantee. [0003] At present, for deep hole processing of long hinged parts, vertical boring processing fixtures are usually used for processing. Such as Figure 9 The shown processing fixture has a bottom plate, a fixture main body, an end drilling template, a sliding drilling template and a pressing plate; the fixture main body is generally vertically located on the bottom plate on the ground, and it has a T-shaped chute perpendicular to the bottom plate The vertical fixing sur...

AI Technical Summary

Problems solved by technology

[0004] However, there are still many deficiencies in this method of vertical fixture processing

For example, since multiple holes of a long hinged part are processed sequentially in the vertical direction, this will cause poor chip removal, and poor chip removal will affect the roughness of the part surface

Although the T-shaped chute on the main body of the fixture can make the sliding drill template slide up and down to a certain position for fixing, there will be a certain gap between the bump and the chute after all, and in the case of relatively high precision requirements Under, such gaps are not allowed

In addition, the direct sales positioning method also has shortcomings such as not being stable enough and inconvenient to disassemble.

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