Mechanism capable of drilling radial holes in indexing manner and drilling method

Abstract

The invention relates to a mechanism capable of drilling radial holes in an indexing manner. According to the mechanism, T-shaped grooves which are transversally and longitudinally staggered, and provided with uniform specifications are formed in the upper surface of a rectangular foundation plate, a multi-index locating and clamping mechanism, an auxiliary locating and clamping mechanism and a slide drilling template mechanism are arranged on the rectangular foundation plate respectively, a cross-shaped groove is formed in the bottom of each mechanism, a slide-fit key is arranged in a corresponding side direction in each cross-shaped groove, and each slide-fit key is in slide connection with a narrow groove in the upper end of the corresponding T-shaped groove of the rectangular foundation plate; and a bolt for a rectangular head groove is arranged in the longitudinal direction of each mechanism, and an end head of each bolt for a rectangular head groove is in slide connection with a wide groove in the bottom of the T-shaped groove at a corresponding position on the rectangular foundation plate. According to the mechanism capable of drilling radial holes in the indexing manner and the drilling method, parts are located by a universal interchangeable structure, thus reducing repeated design and assembly for a fixture, reducing losses of raw materials, and improving product quality and production efficiency.

Description

technical field [0001] The invention relates to a mechanism and a drilling method capable of indexing radial holes, and belongs to a drilling auxiliary tooling. Background technique [0002] In the field of mechanical processing, radial holes with different angles need to be drilled on most circular straight pipes, some on the same circumference, and some form an included angle on two or more different circumferences, with many angles. 15°, 30°, 45°, 60°, 75°, 90° and 120°. There are two traditional solutions. One is to design multiple sets of special drilling jigs to meet the requirements due to the different angles and positions of multiple radial holes that need to be processed on the product, so the positioning reference is not uniform. It is easy to cause error accumulation and affect the accuracy, and the design and manufacturing cycle is too long and the manufacturing cost is high; the other is to try to drill radial holes at different positions and angles on a set o...

AI Technical Summary

Problems solved by technology

There are two traditional solutions. One is to design multiple sets of special drilling jigs to meet the requirements due to the different angles and positions of multiple radial holes that need to be processed on the product, so the positioning reference is not uniform.

It is easy to cause error accumulation and affect the accuracy, and the design and manufacturing cycle is too long and the manufacturing cost is high; the other is to try to drill radial holes at different positions and angles on a set of special drilling jigs, but it is necessary to flip the jig as a whole And the way of arranging multiple drilling templates has the disadvantages of difficult design, time-consuming and laborious clamping, complex and heavy structure, and low reuse rate.

Although the above-mentioned traditional methods can meet the processing needs, they all have one of the biggest shortcomings, that is, when encountering special circumstances, when the product processing requirements change, the fixture cannot be changed in time according to the demand, and it needs to be coordinated by design, technology, and manufacturing. However, it will lead to problems such as increased manufacturing costs and cycle delays.

Although the local structure of the combined fixture is adjustable and the limit structure has a certain degree of flexibility, it still has the disadvantages of poor versatility in technology, and the structure and orientation of the drilling template, and the limit structure is prone to interference.

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