An end effector for helical milling holes

An end effector and helical hole milling technology, which is applied to the driving device, milling machine equipment, details of milling machine equipment, etc., can solve the problems of eccentricity error and eccentricity cannot be adjusted automatically, so as to reduce heat accumulation, improve surface processing quality, The effect of improving tool life

Active Publication Date: 2022-07-15
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent CN102689040B discloses a helical milling device. By manually adjusting the eccentricity, the helical milling function of the workpiece is realized. However, the eccentricity cannot be adjusted automatically, and manual assistance is required, and there is an eccentricity error problem.
[0004] Chinese patent CN108515216B discloses a helical milling device, which realizes the motor-driven revolution mechanism and eccentric adjustment mechanism, and ensures the accuracy of the processed hole, but the device requires multiple motors as power sources

Method used

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  • An end effector for helical milling holes
  • An end effector for helical milling holes
  • An end effector for helical milling holes

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Experimental program
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Effect test

Embodiment 1

[0042] In this embodiment, the workpiece aircraft skin material to be processed is made of 2024 aluminum alloy. Dimensions: diameter 120mm, width 100mm, thickness 2mm. The diameter of the milling cutter is 4mm, the rotation speed of the milling cutter is 3000r / min, the feed rate is 24mm / min, the diameter of the hole is φ5mm, and the eccentricity (the vector sum of e1 and e2) is 0.5mm.

[0043] Conclusion: All the hole making is completed, and the operation is convenient and easy to operate. The hole-making accuracy of each hole can reach H8. It greatly reduces the work intensity of workers and improves work efficiency.

Embodiment 2

[0045] In this embodiment, the workpiece aircraft to be processed is usually made of difficult-to-machine materials, and the material is carbon fiber composite material (CFRP). Dimensions: diameter 120mm, width 100mm, thickness 2mm. The diameter of the milling cutter is φ6mm, the rotational speed of the milling cutter is 6000r / min, the feed rate is 48mm / min, the diameter of the hole is φ8mm, and the eccentricity (the vector sum of e1 and e2) is 1mm.

[0046] Conclusion: All the hole making is completed, and the operation is convenient and easy to operate. The hole-making accuracy of each hole can reach H8. It greatly reduces the work intensity of workers and improves work efficiency.

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Abstract

The invention relates to an end effector suitable for helical milling holes. The servo motor of the device and the helical milling unit assembly are connected through a clutch conversion mechanism assembly, and a presser foot unit assembly is arranged on the helical milling unit assembly; The motor controls eccentric adjustment and revolution at the same time. By controlling the air cylinder to control the meshing state of the gears, the switch between adjusting the eccentric distance and the state of helical milling is realized, and finally a single servo motor can control the eccentric adjustment and revolution at the same time, and also reduce the self-weight of the device.

Description

technical field [0001] The invention relates to the field of product machining and manufacturing, in particular to an end effector for helical milling holes. Background technique [0002] With the rapid development of manufacturing technology, cutting processing, as the basic process of manufacturing technology, has made great progress, especially in the aerospace field. In the manufacturing process of aerospace products, many parts need to be machined with a large number of holes for later positioning and connection. The traditional hole making process needs to go through drilling, reaming, countersinking, deburring and other processes. Although it can meet the technical requirements of hole making, it generally has the disadvantages of low efficiency, unstable hole quality, and high processing cost. When there are many hole-making specifications, the tools need to be replaced frequently, which further reduces the manufacturing accuracy and efficiency. For the large parts...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23C3/00B23Q5/10B25J15/00B25J11/00
CPCB23C3/00B23Q5/10B25J15/0019B25J11/005
Inventor 刘伟军焦安源王静
Owner SHENYANG POLYTECHNIC UNIV
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