Middle driving electric spindle

A technology for driving an electric spindle and an axial direction. It is used in large fixed members, metal processing machinery parts, metal processing equipment, etc. It can solve problems such as unfavorable accuracy and stability, difficulty in forming linkage, and occupying space, so as to reduce replacement costs and reduce costs. The effect of maintenance cost, reduction of transmission loss, and improvement of the scope of application

Inactive Publication Date: 2018-08-07
台州屹捷数控机床股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Its power is mainly driven by the external motor and belt drive through the seat of the two-way spindle to drive the rotating part inside the spindle; but this external drive structure takes up a lot of space and is easy to cause damage to other structures. Interference is not conducive to the development of precision and refinement of double-head lathes. Second, due to the interference of its bel

Method used

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  • Middle driving electric spindle
  • Middle driving electric spindle
  • Middle driving electric spindle

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0039] Example 1: A medium-drive electric spindle, such as figure 1 with image 3 As shown, it includes a housing assembly 1 with a through hole 11, two extension sleeves 2, two ferrules 3 embedded in the extension sleeve 2 for clamping the workpiece, a pull sleeve 4 connected to the two ferrules 3, and A control structure 5 that drives one of the extension sleeves 2 to move axially. When the extension sleeve 2 moves axially, the two ferrules 3 are forced to contract.

[0040] The shell assembly 1 includes a box body 12 and a seat cover 13. The seat cover 13 is arranged in the box body 12 and an angular contact bearing 121 is connected with the box body 12. The outer wall of the other end of the seat sleeve 13 is provided with an annular fixing groove 31 with a side wall in only one direction. The fixing groove 31 is sleeved with one end and the side wall of the fixing groove 31 abutting the rotor 7, and the rotor 7 and Rotary stop keys 132 are connected between the seat sleev...

Example Embodiment

[0049] Embodiment 2: The difference from Embodiment 1 is that the structure of the pull sleeve 4 is different. The pull sleeve 4 includes a left sleeve 44 and a right sleeve 45 each provided with a hook 423 at the ends facing away from each other. The hook 423 is clamped in the limiting groove 31, and the outer wall of the left sleeve 44 is tightly embedded in the inner wall of the through hole 11. An accommodating groove 441 is provided on the inner wall of the left sleeve 44, and the right sleeve 45 further includes an extension portion 421 threadedly connected to the accommodating groove 441 and an outer portion 422 tightly embedded in the inner wall of the through hole 11. The hook portion 423 is provided on the outer portion 422 On the inner wall of the external portion 422 and the left sleeve 44 is provided with a locking member 46 threadedly connected to the extension portion 421 and abutting with the left sleeve 44.

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Abstract

The invention discloses a middle driving electric spindle. The middle driving electric spindle comprises a shell sleeve assembly, two extending sleeves and clamping sleeves, wherein the shell sleeve assembly is provided with through holes, the detachable extending sleeves are fixedly arranged at the two ends of the shell sleeve assembly, the clamping sleeves are embedded in the extending sleeves and used for clamping a work-piece, the surface of the circumference of each clamping sleeve is an oblique plane and abuts the inner wall of the corresponding extending sleeve, and a pull sleeve is connected between the two clamping sleeves; the shell sleeve assembly further comprises a box body and a seat sleeve rotationally connected to the inner portion of the box body, one end of one of the axial directions of the seat sleeve is provided with a control structure driving one of the extending sleeves to move along the axial direction; the outer wall of the other end of the seat sleeve is provided with an annular fixing connection groove, a rotor is sleeved with the fixing connection groove, and one end of the rotor abuts the side wall of the fixing connection groove; the other end of therotor abuts a water-proof ring in sleeved connection with the seat sleeve; a stator corresponding to the rotor is fixedly arranged in the box body; a driving structure is built-in, so that the structure is more compact, the transmission loss is reduced, the sealing effect of a spindle structure is effectively improved, and the service life of the spindle is greatly prolonged.

Description

technical field [0001] The invention relates to a bidirectional lathe spindle, in particular to a middle-drive electric spindle. Background technique [0002] The double-head lathe is one of the most widely used lathes in machinery manufacturing and assembly factories. The difference from traditional lathes is that it can simultaneously perform product turning on both sides of the workpiece. [0003] A kind of numerically controlled double-head lathe disclosed by the Chinese patent whose authorization publication number is CN105665749A. [0004] Compared with traditional machine tools, the function of double-head turning is mainly realized by the bidirectional spindle that can be clamped in the middle of the workpiece. [0005] Existing two-way main shaft is as shown in the Chinese patent that authorized publication number is CN105014451A, discloses a kind of wedge-push type double-headed car bi-directional main shaft chuck, comprises main shaft, retaining ring, wedge push ...

Claims

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Application Information

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IPC IPC(8): B23B19/02
CPCB23Q1/70
Inventor 张瑜
Owner 台州屹捷数控机床股份有限公司
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