Device for rapidly detaching drill bit of drilling machine

Abstract

The invention relates to a device for rapidly detaching a drill bit of a drilling machine. According to the device, a main shaft (2) is arranged on a machine body (1), a drilling sleeve (6) is embedded in the main shaft (2), the drilling bit (7) is arranged in the drilling sleeve (6), and a sleeve (4) is connected with the main shaft (2) through a pin shaft (5). A nylon sleeve (3) is installed in the gap between the sleeve (4) and the main shaft (2), and two ends of the nylon sleeve (3) and two ends of the sleeve (4) are fixed by bolts (8) respectively. The top end of the pin shaft (5) is snaps the outer surface of the sleeve (4), and the other end of the pin shaft (5) is fastened by a nut (9). The device is convenient, safe, fast, capable of saving auxiliary time for changing drill bits, reducing labor intensity of operators and improving efficiencies and particularly applicable to assembly lines and lean production lines; and by means of the device, hand-holding time is reduced, effective operating time is increased, the production efficiencies can be improved by 5%-10%, and the device is approved by workers at the production line and popularized and applied when the device is configured in the production line.

Description

technical field [0001] The invention belongs to a pushing and unloading device, in particular to a quick-unloading drill bit device for a drilling machine. Background technique [0002] At present, among the professional manufacturers of automobile brake drums, when processing bolt holes, for some products with a large number of holes and large batches, it is necessary to replace the drill bits of different diameters many times, and use the traditional inclined iron to unload the taper shank drill. Hold the drill bit with one hand and tap with the hammer with the other hand to remove the drill sleeve from the main shaft hole of the drilling machine. This method is time-consuming and unsafe, which is not conducive to assembly line production and affects the production rhythm. SUMMARY OF THE INVENTION [0003] In order to solve the above problems, the present invention provides a quick-release drill bit device for a drilling machine, which utilizes the force and reaction fo...

AI Technical Summary

Problems solved by technology

[0002] At present, in the professional manufacturers of automobile brake drums, when processing bolt holes, for some products with more hole systems and large batches, it is necessary to replace drill bits with different diameters many times, and use traditional inclined iron to unload taper shank drills. Hold the drill bit with one hand, and tap with a hammer with the other hand to remove the drill sleeve from the spindle hole of the drilling machine. This method is time-consuming and unsafe, which is not conducive to assembly line production and affects the production cycle.

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