Numerical control lathe high-speed main shaft unit center water outlet scrap flushing device

Abstract

The invention discloses a numerical control lathe high-speed main shaft unit center scrap flushing device. The numerical control lathe high-speed main shaft unit center scrap flushing device comprisesa rotary oil cylinder (1), a main shaft (5), a pulling rod (6) and a clamping disc (2), wherein a piston rod of the rotary oil cylinder (1) is hollow, the pulling rod (6) is arranged inside the mainshaft (5), rotates along with the main shaft, can stretch and contract axially along the main shaft (5) and is hollow, the main shaft (5) is connected with an external power source, the numerical control lathe high-speed main shaft unit center scrap flushing device further comprises a water flushing pipe (3), the water flushing pipe (3) comprises a water inlet end and a water spray end and penetrates through the oil cylinder (1) and the pulling rod (6), and the water spray end stretches out to a clamping claw position of the clamping disc (2), bearings (10) are arranged between the water flushing pipe (3) and the pulling rod (6), and the water inlet end of the water flushing pipe (3) is connected with a machine tool flexible pipe.

Description

technical field [0001] The invention belongs to the field of machine tools, in particular to machine tool spindles. Background technique [0002] Spindle unit center outlet water is more and more widely used on machine tools, especially in high-end CNC lathes such as machining centers and CNC lathes, where it can effectively cool and flush chips. With the development of CNC lathes in the direction of high speed, high efficiency, high precision, automation, and intelligence, the requirements for the spindle speed of the machine tool and the ability of the machine tool to automatically clean the workpiece positioning surface on the fixture are getting higher and higher, especially the chips on the positioning surface of the CNC lathe fixture. The quality directly affects the work efficiency and the accuracy of workpiece clamping. At present, the central water outlet structure of the CNC lathe spindle uses a rotator or a rotary joint to connect the chip washing medium and the ...

AI Technical Summary

Problems solved by technology

This structure integrates the design of the water outlet pipe and the chuck pull rod, resulting in the synchronous rotation of the water nozzle, the main shaft, and the chuck fixture, which are relatively stationary with the positioning surface and jaws on the fixture, and cannot efficiently align the jaws with the positioning surface. Iron filings rinsed clean

At the same time, the structure of the rotary joint limits its low rotary speed, thus limiting the maximum speed of the machine tool spindle unit

Moreover, the gyrator or the rotary joint has high requirements on the cleanliness of the fluid medium, and it is necessary to add a filter device at the supply pump of the rotary joint, which is not only costly, but also prone to failure

Cause problems such as low speed of machine tool, high cost, poor chip flushing effect, ultra-poor precision of processed workpiece, poor reliability, etc.

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