Lathe-purpose fast tool lowering device

Abstract

The invention discloses a lathe-purpose fast tool lowering device which comprises a turning tool. The lathe-purpose fast tool lowering device is characterized by further comprising a clamp body, a lower tensioning regulation frame, a low tensioning spring, an upper tensioning regulation frame, an upper tensioning spring, a rib plate hasp and a wedge-shaped slider. The lathe-purpose fast tool lowering device is short in machining time, high in machining quality, stable and reliable in clamping, speedy and convenient to change tools, safe to operate, small in tool lowering impact force, free of damaging device accessories, capable of being recycled, and effective in reducing machining experiment cost.

Description

technical field [0001] The invention relates to a device for a lathe, in particular to a rapid tool drop device for a lathe. Background technique [0002] The rapid tool drop device for lathes is a commonly used device for studying the chip deformation process. It is struck by external force to make the tool on the rapid tool drop device break away from the workpiece instantaneously during the cutting process, so as to obtain the root of the chip connected to the workpiece. The specimens are for researchers to study the related phenomena of the cutting tool and the chip and the machined surface during the cutting process, such as built-up edge, scales, metal deformation in the front area of ​​the cutting edge, deformation of the chip, and the influence of the edge area on the machined surface. In order to make the obtained specimen more in line with the actual cutting state before the tool drop, the fast tool drop device for the lathe should make the process of the tool and ...

AI Technical Summary

Problems solved by technology

The hand-hammer type rapid tool drop device vibrates greatly when the hand hammer is struck, which affects the cutting of the tool and has an impact on the accuracy of the machine tool; the gun-shot type rapid tool drop device uses the nail gun as the firing power source, and uses the nail gun to hit the gunpowder. The explosive force pushes the piston rod and the steel nail loaded into the gun barrel to move at high speed, and the high-speed moving piston rod and the bullet collide with the tool drop block that is fixedly connected with the turning tool to realize rapid tool drop. The disadvantage is that the operation risk factor is high.

Due to the complicated operation of the explosive quick-drop device, it is difficult to accurately calculate the amount of explosive charge and the shear force required for breaking the pin, and it is difficult to popularize due to poor safety and high noise.

In addition, the above-mentioned rapid tool drop devices are all destructive to the parts in which the tool is clamped, and the clamping structure of the lathe tool holder needs to be changed. During repeated cutting tests, the tool change time of the device is long, and the interchangeability of the device is poor.

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