Constant temperature system of CNC machining center

Abstract

The invention discloses a numerical control machining center constant-temperature system and belongs to the technical field of machining center cooling technology. A cooling system of an existing machining center is small in cooling range and not ideal in cooling effect. The numerical control machining center constant-temperature system comprises an oil tank, an oil cooler, a spindle box cooling device and a feeding mechanism cooling device, a first cooling pipeline of the spindle box cooling device comprises a first oil output pipeline, a spindle box pipeline inlet, a spindle box pipeline, a spindle bearing cooling pipeline, a spindle built-in motor cooling pipeline, a spindle box pipeline outlet and a first oil-returning pipeline, wherein the first oil output pipeline, the spindle box pipeline inlet, the spindle box pipeline, the spindle bearing cooling pipeline, the spindle built-in motor cooling pipeline, the spindle box pipeline outlet and the first oil-returning pipeline are connected in sequence to form a one-way oil duct. A second cooling pipeline of the feeding mechanism cooling device comprises a second oil output pipeline, a Z-axis lead screw nut cooling pipeline, a Z-axis servo motor heat-insulation cooling pipeline, an X-axis servo motor heat-insulation cooling pipeline, an X-axis lead screw nut cooling pipeline, a Y-axis lead screw nut cooling pipeline, a Y-axis servo motor cooling pipeline and a second oil-returning pipeline, wherein the second oil output pipeline, the Z-axis lead screw nut cooling pipeline, the Z-axis servo motor heat-insulation cooling pipeline, the X-axis servo motor heat-insulation cooling pipeline, the X-axis lead screw nut cooling pipeline, the Y-axis lead screw nut cooling pipeline, the Y-axis servo motor cooling pipeline and the second oil-returning pipeline are connected in sequence to form a one-way oil duct. The oil output pipelines are connected with cooling oil in the oil tank, and the oil returning pipelines are connected with the inlet of an oil cooling machine.

Description

technical field [0001] The invention belongs to the technical field of machining center cooling, and in particular relates to a constant temperature system of a numerical control machining center. Background technique [0002] The CNC machining center includes a spindle device, a feed mechanism that drives the spindle device, and a process movement. The spindle box of the spindle device is supported and installed by a slider that drives the feed mechanism that drives it to move. The CNC machining center is easy to make the machine tool generate heat during the working process, and the heat of the machine tool will affect the accuracy of the machine tool. The main heat sources of the general machine tool are: 1. The heat generated by the spindle tool cutting the workpiece and the heat generated inside the spindle device ; 2. The heat generated by the relative movement between the screw nut and the lead screw when the machine tool is running fast; 3. The heat generated by the ...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the defects that the machining accuracy of the existing CNC machining center is affected by the temperature rise and deformation of the main shaft, screw mechanism, bearing, etc., and the cooling system has a small cooling range and unsatisfactory cooling effect, and provides an effective control of the temperature of the machine tool. Upgrade and improve the machining accuracy of the CNC machining center constant temperature system

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