Tool turret locking device of drilling and milling machining center

Abstract

The invention provides a tool turret locking device of a drilling and milling machining center. The tool turret locking device is characterized in that a tool turret and a machine box form circumferential rotation and axial limiting cooperation, and a first driving unit drives the tool turret to rotate along a rotary shaft core of a turret body relative to the machine box; a locking mechanism is arranged between the tool turret and the machine box, and when the locking mechanism is unlocked, the tool turret rotates along the rotary shaft core of the turret body relative to the machine box, andwhen the locking mechanism is locked, the tool turret is limited to rotate along the rotary shaft core of the turret body relative to the machine box. A plurality of cutting main shafts on the tool turret can selectively install cutting tools with different types and specifications to meet cutting requirements to meet the requirements of drilling and milling machining; the tool changing action ofthe tool turret is realized by the rotation action, and thus the timely response of the tool change operation is ensured; because the axial displacement action of the tool turret is avoided, the positioning error caused by the axial displacement is eliminated, and the position accuracy of the cutting main shafts is naturally ensured; and since the tool turret has no axial displacement, a task oflocking the position of the tool turret can be realized as long as the circumferential rotation of the tool turret is limited.

Description

technical field [0001] The invention belongs to the field of design and manufacture of numerical control machine tools, and in particular relates to a drilling and milling machining center. Background technique [0002] With the development of science and technology, the manufacturing industry has higher and higher requirements for machining precision. Traditional machining equipment has long been unable to meet the increasingly demanding process requirements. Therefore, CNC machine tools, a highly automated machining process, were born. Equipment, CNC machine tools adopt CNC system to automatically control the cutting, feeding and other actions of the machine tool, which can realize precise control of cutting amount and greatly improve production efficiency. The machining center is a CNC machine tool with a higher degree of automation. It can combine various processes such as milling and drilling, and realize cutting processing by combining the position adjustment of the wo...

AI Technical Summary

Problems solved by technology

When returning to the position, it is necessary to ensure the meshing of the gears in the cutting power system and the meshing of the movable toothed plate 27 and the fixed toothed plate 17. It is extremely difficult to align the gears and toothed plates at the same time, that is, the timely response of the return position frequently interferes with each other If it happens, it seriously affects the accuracy of returning after tool change, that is, it is difficult to control the time-consuming of tool change. In addition, when the cutter head is changed, it needs to rotate and move axially. The structure is complicated and the cumulative error is large. In addition, the rotation limit and the axial limit are all dependent on the surface processing and matching accuracy of the toothed disc, that is, it is difficult to guarantee the position uniqueness of the cutter head 20 when it returns, so the position accuracy of the cutter head 20 cannot be guaranteed, which seriously affects the machining accuracy

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