The tool retracting mechanism of the machine tool and its retracting adjustment structure

Abstract

A tool retracting mechanism of a machine tool and a tool retracting adjusting structure thereof are used for being in linkage with a tool loosening mechanism in a spindle to loosen a tool. The adjusting structure is arranged between a rocker arm and a cam of the tool retracting mechanism and comprises a sliding block capable of moving along the linear direction in a reciprocating mode, a bolt combined with the sliding block and enabling users to adjust the stretching length and a roller arranged at one end of the sliding block. The head of the bolt and the roller are in a good contact relation with an idler wheel at one end of the rocker arm and the surface of the cam so as to solve the problem that a gap exists in machine part installing.

Description

technical field [0001] The present invention is related to a machine tool, and more specifically refers to a tool retracting mechanism of a tool machine and a tool retracting adjustment structure thereof. Background technique [0002] figure 1 Shown is a tool retraction mechanism 1 of a known machine tool 10 with a tool retraction function. The tool retraction mechanism 1 is used to link a tool release mechanism (not shown) in a main shaft 6 to release the tool 8. , so that a tool changing arm 7 takes off the cutter and replaces the cutter. [0003] The knife retracting mechanism 1 mainly includes components such as a cam 2 , a rocker arm 3 , a connecting rod 4 and a cantilever 5 . Wherein, the rocker arm 3 has a fixed pivot point 3a, a movable pivot point 3b and an abutment end formed by a roller 3c; the cantilever arm 5 has a fixed pivot point 5a, a movable pivot point 5b and a The abutment end formed by the pressure roller 5c; the two ends of the connecting rod 4 are r...

AI Technical Summary

Problems solved by technology

In fact, since the rocker arm 3 with the roller 3c and the cam 2 are respectively installed on the headstock 10a and the tool magazine 10b of the independent mechanism, it is difficult to accurately control the relationship between the two to maintain a contact state at any time, that is, , the roller 3c and the cam 2 in the real environment, in figure 1 In the state shown, there will be a gap S, which will cause the cam 2 to idle for a short stroke, which is not conducive to the cantilever 5 pushing down the knife ring 9 at the optimal pressing angle

In order to improve the above-mentioned shortcomings, although some operators design the rocker arm 3 in an adjustable length, hoping to compensate the gap S by changing the distance from the fixed pivot point 3a to the roller 3c, the adjustable length The design structure is complicated and inconvenient to use

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