Equipment and process for removing burrs from group holes

A technology of burrs and group holes, which is applied in the field of mechanical processing and manufacturing, can solve the problems of difficult to ensure the consistency of burr removal, low efficiency of group hole burr removal, and difficult to guarantee the quality of grinding, so as to achieve good consistency of grinding quality and smooth grinding stroke. The effect of increasing and improving the grinding efficiency

Pending Publication Date: 2020-10-09
UNIV OF SCI & TECH LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The efficiency of laser processing is high, but there are recast layers and microcracks on the hole wall after processing; the tool electrode is worn out in EDM; the cost of machining is relatively low, but burrs are prone to occur at the edge of the hole, and these burrs are mostly artificial It is removed by grinding, and the quality of burr removal is directly related to the skill level of the manpower. During the removal process, the edge of the hole is easily over-grinded, and the consistency of burr removal is difficult to guarantee; in addition, there is a situation where burrs fall into the hole during grinding. , so that the removal efficiency of group hole burrs is not high; when grinding burrs, the noise is large, the dust is large, and the working environment is poor
[0003] The patent document CN201520309724.4 (automatic ultrasonic grinding machine) discloses an automatic ultrasonic grinding machine that uses automatic feeding, automatic unloading, automatic grinding needles, and automatic centering. It can control multiple grinding machines for grinding at the same time, but the grinding Difficult to guarantee quality
Check the information, the patent document CN200720042026.8 (energy-concentrating ultrasonic grinding deburring device), discloses a deburring device that uses ultrasonic waves to conduct in a liquid medium, which can remove burrs at positions that are difficult to reach manually, but the removal less efficient

Method used

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  • Equipment and process for removing burrs from group holes
  • Equipment and process for removing burrs from group holes
  • Equipment and process for removing burrs from group holes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The invention can grind the SUS304 plate-type group-hole workpiece with the group hole diameter of 3mm-6mm, and position the group-hole workpiece 9 to the bottom end of the frame 6. The group-hole workpiece 9 is 180mm long, 180mm wide, and 1mm thick. There are a total of 81 holes on 9 with a diameter of 5mm.

[0041] The processing conditions of this embodiment are: the size of the magnetic pole disc 20 is 40mm in diameter, 25mm in thickness, magnetic abrasive grains are 60 meshes, the filling volume is 15 grams, the grinding fluid is Laurian SR-991 water-based grinding fluid, and the processing gap is 2mm , Ultrasonic frequency is 20kHz, grinding processing time is 60min.

[0042] During the grinding process, the movement track is a sinusoidal movement. After grinding by the equipment and processing technology of the present invention, the hole exit burr is effectively removed, the surface quality of the workpiece is improved, and the work efficiency is also improved.

Embodiment 2

[0044] In this embodiment, the workpiece material is TC4, the length is 230 mm, the width is 230 mm, the thickness is 1 mm, the number of horizontal holes is 20, the number of longitudinal holes is 20, and the hole diameter is 5 mm. It is required to completely remove the burrs at the edge of the hole and ensure a high surface quality.

[0045] The size of the magnetic pole disc is 40mm in diameter and 25mm in thickness. The magnetic abrasive grains are 60 meshes. The filling volume is 15 grams. The grinding fluid is Laurien SR-991 water-based grinding fluid, the processing gap is 2mm, the ultrasonic frequency is 20kHz, and the grinding processing time is 60min.

[0046] After grinding by the equipment and processing technology of the present invention, the burrs at the exit of the hole are effectively removed, and the surface of the workpiece is uniform, which meets the processing requirements.

[0047] Aiming at the current situation of manual burr removal, the present invention a...

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Abstract

The invention relates to equipment and a process for removing burrs from group holes. The equipment comprises a frame, X, Y and Z-axis sliding tables, an ultrasonic auxiliary device and a magnetic disk, wherein the X, Y and Z-axis sliding tables are installed on the upper part of the frame, a rotary motor is installed on a sliding block of the Z-axis sliding table of the X, Y and Z-axis sliding tables, a main shaft of the rotary motor is connected with the ultrasonic auxiliary device, and the magnetic disk is connected to the bottom of the ultrasonic auxiliary device. According to the equipment, on the basis of an ultrasonic magnetic particle compound grinding technique, a grinding track plan is used in cooperation to remove burrs from one side of a workpiece of a group hole structure, compared with a traditional manual grinding mode, the removal quality and the removal efficiency of the burrs from the group holes are greatly increased, the grinding uniformity of hole edges is good, and the hole edges cannot be damaged; and the automatic burr removal can be realized, the working environment is improved, and the labor cost is reduced.

Description

Technical field [0001] The invention relates to the field of mechanical processing and manufacturing, in particular to a device and a process for removing group burrs. Background technique [0002] In industries such as aerospace, instrumentation, medical equipment, and automobiles, components with cluster holes as the key structure are used more and more widely, such as heat shields, spinnerets, electron microscopy gratings, micro nozzles, and filters And air-conditioning ducts, etc. At present, group holes are mostly manufactured by mechanical processing, laser processing and EDM. The laser processing efficiency is high, but the processed hole wall has recast layers and micro-cracks; the tool electrode is worn out in EDM; the machining cost is relatively low, but it is easy to produce burrs at the edge of the hole. These burrs are mostly artificial The method of polishing is removed. The quality of burr removal is directly related to the level of manual skill. During the remo...

Claims

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Application Information

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IPC IPC(8): B24B1/00B24B1/04B24B31/00B24B31/10B24B31/12
CPCB24B1/005B24B1/04B24B31/006B24B31/10B24B31/12
Inventor 焦安源丁浩东李健平张国富刘柄宏陈燕
Owner UNIV OF SCI & TECH LIAONING
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