High-density spindle device

Abstract

The invention discloses a high-density spindle device. The device comprises a clamped part, a chuck, a clamping sleeve, a positioning sleeve, an ejecting sleeve, an ejecting rod, a spindle, front bearings, a stator, a rotor, a back bearing, an encoder, a coded disc, a hydraulic cylinder, a hydraulic cylinder mounting block, a first spindle casing, a sealing component, a connecting ring, a second spindle casing, a fixing ring, a fixing loop, a positioning block, a clamping sleeve casing and a positioning sleeve casing; the clamped part is connected with the chuck; the chuck is connected with the clamping sleeve; the chuck and the clamping sleeve are connected with the positioning sleeve; the clamping sleeve and the positioning sleeve are connected with the clamping sleeve casing; the ejecting sleeve is connected with one end of the ejecting rod; the ejecting sleeve and the positioning sleeve are connected with the positioning sleeve casing; the positioning sleeve casing is connected with the connecting ring; the ejecting rod is connected with the connecting ring; the first spindle casing is connected with the sealing component; the first spindle casing and the sealing component are connected with the connecting ring; the spindle is located on the periphery of the ejecting rod and the like. The device completely meets the requirement of a high-precision machine tool for a spindle with the high repeated positioning accuracy.

Description

technical field [0001] The invention relates to a spindle device, in particular to a high-density spindle device. Background technique [0002] At present, the turning process of fuel injection seat parts in our country is generally carried out with the traditional lathe spindle first. The spindle speed of the traditional lathe is generally 4000r / min, and because the traditional lathe spindle does not have a clamping structure with high repeat clamping accuracy, it generally needs to be designed separately. A set of special fixtures are used to clamp the parts, and when the traditional spindle fixtures clamp the parts, there is a force to pull the parts down, so that the parts have a downward displacement, that is, the parts cannot be on the upper end of the spindle without a The fixed repetitive clamping position makes the spindle unable to meet the production needs of the machine tool to process high-precision parts due to the low positioning accuracy of the repeated clamp...

AI Technical Summary

Problems solved by technology

[0002] At present, the turning process of fuel injection seat parts in our country is generally carried out with the traditional lathe spindle first. The spindle speed of the traditional lathe is generally 4000r / min, and because the traditional lathe spindle does not have a clamping structure with high repeat clamping accuracy, it generally needs to be designed separately. A set of special fixtures are used to clamp the parts, and when the traditional spindle fixtures clamp the parts, there is a force to pull the parts down, so that the parts have a downward displacement, that is, the parts cannot be on the upper end of the spindle without a Fixed repetitive clamping position, so that when the spindle is processing high-precision parts, due to the low positioning accuracy of repeated clamping of parts, it cannot meet the production needs of machine tools for high-precision parts

On the other hand, due to the large space occupied by traditional special fixtures, the space after the spindle clamps the parts is large, resulting in a large height of the machine bed and high cost of the machine tool. At present, there is a lack of high-speed machines in China. , high repeat clamping accuracy, compact installation size of the spindle device

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