A kind of external rotation and internal cooling tool handle

Abstract

The invention discloses an externally rotating and internal cooling tool handle, comprising: a body assembly; a tool handle body, which is supported on the body assembly through a bearing, the lower end of the tool handle body is provided with an inner cavity, and the cavity wall of the inner cavity is provided with a water inlet hole; a hydrostatic shaft sleeve, connected to the body assembly and sleeved on the outer peripheral surface of the tool handle body, the hydrostatic pressure shaft sleeve and the tool handle body clearance fit, the hydrostatic pressure shaft sleeve A first water passage hole connected to the water inlet hole is provided, and a plurality of cross-sectional cavities are arranged on the inner wall surface of the hydrostatic bushing, and the plurality of cross-sectional cavities are distributed at intervals along the circumferential direction. A second water passage hole connected to the cross-sectional cavity is provided, and both the first water passage hole and the second water passage hole are connected with the water channel of the body assembly. The external water supply system is adopted to ensure the internal cooling cutting function of the tool holder, which breaks the limitation that the spindle must have a central water outlet function, and expands the use range of the tool holder. On the other hand, it ensures the usability of the CNC machine tool, thereby saving the processing cost.

Description

technical field [0001] The invention is used in the field of machine tool accessories, in particular to an externally rotating and internal cooling tool holder. Background technique [0002] Looking at the entire machinery industry, especially the machined products related to the 3C industry, with the pursuit of high precision, high gloss and high brightness of processed products by consumers, the first priority is to ensure the high precision of processing equipment. The rapid coverage and innovation of informatization in the machinery industry has resulted in the gradual elimination of old and old equipment and the need to replace more specialized high-end numerical control equipment. Market competitive advantage. High-efficiency machining, such as drilling, milling, grinding and other processes, requires wet machining in high-speed cutting mode and the function of internal cooling in the center. However, the traditional CNC equipment generally does not have internal cool...

AI Technical Summary

Problems solved by technology

The rapid coverage and innovation of informatization in the machinery industry has led to the gradual elimination of old and old equipment, and the need to replace more specialized high-end CNC equipment. market competitive advantage

High-efficiency machining, such as drilling, milling, grinding, etc., requires the use of wet machining in high-speed cutting mode and the center internal cooling function. However, traditional CNC equipment generally does not have an internal cooling device, and the drilling speed is low, and cutting and grinding progress The dosage is small, resulting in slow product processing and low pass rate

[0003] In addition, in the prior art, the rigidity of the support at the end of the tool handle is insufficient, which easily leads to deformation of the shaft core and abnormalities such as vibration at the end of the tool handle

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