Rotary tool turret and rotation method

Abstract

The invention relates to a turret type rotary tool turret used for turning and milling tool turrets and machining centers of NC lathes and a rotation method. A toolholder adopts the locking structure of a locknut and uses a V-shaped groove of a V-shaped groove toolholder; the V-shaped groove toolholder is locked by rotating the locknut clockwise and is loosened by rotating the locknut counterclockwise so as to be convenient for realizing the functions of installing, fixing and taking out the V-shaped groove toolholder and replacing multi-spindles; spindle transmission adopts the straight concave-convex connection transmission type; the tool turret rotation adopts the structure of a three-plate clutch which is driven to rotate by a high-precision worm gear and a worm. The invention has the following advantages: 1. short replacement time, fast speed and convenient replacement of V-shaped groove toolholders; 2. good functions of installing and replacing multi-spindles, one-time completion of drilling and tapping, shortened operation time and greatly improved machining efficiency; 3. great bearing capacity, good structure rigidity, long service life, simple machining, low manufacturing cost and convenient equipment maintenance and repair; 4. high rotary precision and good stability.

Description

technical field [0001] The invention relates to a turret-type rotating turret and a rotating method for CNC lathe turning, milling, compound turret and machining center machine. The turret is divided into four major specifications: 4-axis, 6-axis, 8-axis and 12-axis , which belongs to the field of rotary turret manufacturing. Background technique [0002] In the current background technology, the locking method of the knife handle of the turret adopts the rear-pull locking method. There is a pull nail at the end of the knife handle, and the oil pressure controls the knife cylinder. When working, the mechanical claw grabs the pull nail and then pulls it, and tightens the handle; the general turret needs to be equipped with a VDI tool holder ( diagram 2-1 ), which are not interchangeable in turning, milling, boring, drilling, and tapping. They are all special parts. Not only is the VDI tool seat expensive, the tool holder is not easy to replace, and the tool holder is prone t...

AI Technical Summary

Problems solved by technology

[0002] In the current background technology, the locking method of the knife handle of the turret adopts the rear-pull locking method. There is a pull nail at the end of the knife handle, and the oil pressure controls the knife cylinder. When working, the mechanical claw grabs the pull nail and then pulls it, and tightens the handle; the general turret needs to be equipped with a VDI tool holder ( Figure 2-1 ), which are not interchangeable in turning, milling, boring, drilling, and tapping. They are all special parts. Not only is the VDI tool seat expensive, the tool holder is not easy to replace, and the tool holder is prone to loosening during processing. When it is necessary to process porous parts, it is necessary to process step by step. Drilling and tapping cannot be completed at one time. For different workpieces, multi-axis devices cannot be installed, so man-hours are wasted and the processing efficiency is not good. In addition, in the spindle transmission mode, generally The main shaft transmission adopts spline transmission, and the spline manufacturing process is cumbersome and expensive

The position of the turret is easy to yaw, and the turret moves up and down (because the turret only performs radial rotation), which cannot effectively reduce friction; in addition, the rotating structure of the turret adopts a two-plate clutch structure. When the turret needs to rotate, The turret can only rotate when the indexing tooth plate is separated from the rising base, so the rotation accuracy is low and the stability is not good

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