Drilling fixture

Abstract

The invention discloses a drilling fixture, which comprises a fixture body, a guide and a bushing. The fixture body is provided with a mounting hole, the guide is arranged in the mounting hole, the bushing is arranged between the fixture body and the guide, the guide and the bushing are provided with communicated chip discharge holes, the fixture body is provided with a chip containing groove which is communicated with the chip discharge holes, and a baffle is arranged at the outer end of the chip containing groove through a fastener and provided with a blowing device. When drillings generated during drilling enter the guide along with a drill, the drillings can be sucked into the chip containing groove by the blowing device through the chip discharge holes, so that chip discharging performance is improved, jamming of the drill into the guide due to untimely chip discharging can be avoided, and abrasion of the fixture body caused by the fact that the guide and the bushing are driven by the jammed drill to rotate together is avoided. The service life and the replacement cycle of the drilling fixture are prolonged, and production cost is reduced. Further, the baffle is arranged at the outer end of the chip containing groove through the fastener, and the drillings sucked in the chip containing groove can be cleaned by demounting the baffle, so that maintenance is convenient.

Description

technical field [0001] The invention relates to a drilling jig, in particular to a drilling jig capable of preventing a drill from being stuck in a guide due to untimely chip removal. Background technique [0002] Fixtures are important tools for machining mechanical parts, and are especially important to ensure the processing quality of parts. When a hole needs to be drilled in a mechanical part, in order to ensure the verticality of the hole, a drilling jig must be used. The previous drilling jig, such as attached figure 1 As shown, it includes a fixture body 1, a guide body 2 and a bushing 3. The fixture body 1 is provided with an installation hole 4, the guide body 2 is arranged in the installation hole 4, and a bushing 3 is provided between the fixture body 1 and the guide body 2. Although the above-mentioned drilling jig has a simple structure and is easy to manufacture, when the drill bit enters the guide body 2 with the drill bit when the drill bit is drilling, if ...

AI Technical Summary

Problems solved by technology

Although the above-mentioned drilling jig has a simple structure and is easy to manufacture, when the drill bit enters the guide body 2 with the drill bit when the drill bit is drilling, if the chip removal is not timely, the drill bit is easily stuck in the guide member, and the drill bit drives The guide body 2 and the bushing 3 rotate together, and the friction fixture body 1 makes the installation hole 4 larger, which affects the use accuracy of the drilling fixture, shortens the replacement cycle of the drilling fixture, and increases the production cost

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