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An electric spindle and a cutter cylinder assembly for the electric spindle

A technology of electric spindle and knife punching cylinder, which is applied in the direction of metal processing machinery parts, manufacturing tools, positioning devices, etc., can solve the problems of high manufacturing cost, achieve the effect of improving air seal effect, reducing air seal attenuation, and preventing spillage

Active Publication Date: 2021-06-18
LUOYANG BEARING RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an electric spindle to solve the technical problem in the prior art that a rotating joint needs to be connected when the rear end of the tie rod passes through the corresponding oil cylinder, resulting in high manufacturing costs; at the same time, the present invention also provides an electric spindle Knife cylinder assembly

Method used

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  • An electric spindle and a cutter cylinder assembly for the electric spindle
  • An electric spindle and a cutter cylinder assembly for the electric spindle
  • An electric spindle and a cutter cylinder assembly for the electric spindle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] like Figure 1 to Figure 8 As shown, the electric spindle in this embodiment mainly includes a headstock, and a motor and a rotating shaft 14 are arranged inside the headstock, and a front bearing support structure and a rear bearing support structure are arranged corresponding to the rotating shaft 14, which play the role of rotation support. The motor includes a motor stator 12 and a motor rotor 13, the motor stator 12 and the motor rotor 13 are located between the front bearing support structure and the rear bearing support structure, and play the role of power source, the motor rotor 13 is fixedly assembled with the rotating shaft 14, and the rotating shaft 14 has The central hole of the rotating shaft is equipped with a pull rod 15 movable along the front and rear directions in the central hole of the rotating shaft. The rear end of the pull rod 15 is fixedly connected with a swivel joint rod 36. Disc spring 16 is arranged between them, and the knife piston 33 insi...

specific Embodiment 2

[0095] The difference between it and Embodiment 1 is that in Embodiment 1, the gas storage tank on the shaft of the rotary joint adopts an annular gas storage tank, and the annular gas storage tank is a rectangular groove. Basically, the annular air storage tank is set on the cooling joint, which can also realize the airtight structure.

[0096] Specifically, the annular gas storage groove can be a rectangular groove, or a U-shaped groove or a V-shaped groove.

specific Embodiment 3

[0098] The main difference from Example 1 is that in Example 1, the air storage tank on the shaft of the rotary joint adopts an annular air storage tank. In this embodiment, on the basis of ensuring the connection with the assembly gap, the air storage tank can also be for the spiral groove.

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PUM

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Abstract

The invention relates to an electric spindle and a tooling cylinder assembly for the electric spindle. In the electric spindle, a rotary joint shaft is assembled in the joint mounting hole of the knife piston. The rotary joint shaft communicates with the rotary joint rod and the cooling joint correspondingly. The cooling joint The supplied coolant enters the central cooling channel of the tie rod through the center hole of the joint shaft and the center hole of the joint rod, and the rotary joint shaft and the cooling joint can rotate relative to each other, and the supply of coolant can be realized without reassembling the rotary joint. Moreover, because Arranging the rotary joint shaft in the joint mounting hole of the knife punching piston will not increase the axial length, which is conducive to the miniaturization design of the electric spindle. In addition, it can effectively improve the service life of the knife punching cylinder components and ensure that the motor The spindle runs continuously and efficiently.

Description

technical field [0001] The invention relates to an electric spindle and a cutter cylinder assembly for the electric spindle. Background technique [0002] The high-speed electric spindle is the core component of the high-speed machining machine tool. There is a rotating shaft inside the electric spindle. The rotating shaft is fixedly assembled with the motor rotor. There is a pull rod inside the rotating shaft. For example, in the synchronous electric spindle disclosed in the Chinese invention patent whose application publication number is CN110947981A, the rear end of the tie rod is threadedly connected with a tie rod connecting rod, and a piston is arranged inside the oil cylinder, and the piston is sleeved on the pulling rod connecting rod. There is a step on the rod for the piston to push forward to drive the pull rod to move forward to realize the tool release operation. When the tool needs to be clamped, the piston moves backward, and the disc spring drives the pull ro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B19/02B23Q3/157
CPCB23Q1/70B23Q3/157
Inventor 李东亚黄昆宋思明叶军牛青波郑昊天张振强
Owner LUOYANG BEARING RES INST CO LTD