Processing cutter for differential cutting of combined holes of reinforced fiber composite materials

A technology of composite materials and reinforced fibers, which is applied in the field of hole processing tools for cutting holes, can solve the problems of not meeting the processing quality requirements, cutting cannot be carried out normally, and the surface of the hole is rough, etc., and achieves simple structure, convenient use and operation, The effect of improving surface quality

Inactive Publication Date: 2012-07-25
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cutting cannot be carried out normally or the processing quality requirements cannot be met due to the rough surface of the hole

Method used

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  • Processing cutter for differential cutting of combined holes of reinforced fiber composite materials
  • Processing cutter for differential cutting of combined holes of reinforced fiber composite materials
  • Processing cutter for differential cutting of combined holes of reinforced fiber composite materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] see figure 1 and figure 2 , the differential cutting combined hole processing tool for reinforced fiber composite materials includes a main cutting tool 6, a differential tool and a differential gear 2, the main cutting tool 6 is a twist drill, and the differential tool is an outer tool 5, such as figure 2 Shown; Differential 2 is a gear differential. The first output shaft 4 of the differential 2 and the second output shaft 3 are coaxial; the first output shaft of the differential 2 is connected to the main cutting tool 6, and the second output shaft of the differential 2 is connected to the outer tool 5, The outer cutter 5 is a tubular drawing cutter.

[0017] When in use, the input end of the differential gear 2 is installed on the machine tool spindle 1, see figure 1 . When the twist drill is drilling, the tubular pulling cutting tool rotates in the same direction or in the opposite direction, the rotation speed is higher or lower than the twist drill, and t...

Embodiment 2

[0019] see figure 1 and image 3 , the main cutting tool 6 is a trepanning drill, and the outer tool 5 is a tubular cutting tool.

[0020] While the trepanning drill is drilling holes, the tubular cutting tool rotates in the same direction or in the opposite direction, the rotation speed is higher or lower than that of the trepanning drill, the feed speed is synchronous or differential, and the tubular cutting tool completes the function of a certain cutting allowance At the same time, it can cut the fiber pulled out by the trepanning drill.

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Abstract

The invention relates to a processing cutter for differential cutting of combined holes of reinforced fiber composite materials. The processing cutter comprises a main cutter, a differential cutter and a differential, the main cutter and the differential cutter are coaxial, the main cutter is a hole processing cutter, the differential cutter is a tubular cutter, the processing cutter for the combined holes is driven by the differential, an output shaft I and an output shaft II of the differential are coaxial, the output shaft II of the differential is connected with the main cutter, and the output shaft I of the differential is connected with the differential cutter. The main cutter is an internal cutter and has the function of removing most of processing allowance, the differential cutter is an external cutter, fibers are drawn out by the internal cutter, at the moment, the fibers are cut off by the external cutter due to differential rotation of the external cutter and the internal cutter when the main cutter works, so that normal cutting is realized, and a processed surface is smooth. In addition, the quality of the processed surface of a hole of a reinforced fiber composite material is improved by the aid of the processing cutter. Besides, the processing cutter is reasonable in design, simple in structure and convenient in utilization and operation.

Description

technical field [0001] The invention belongs to the technical field of cutting tools, and in particular relates to a hole machining tool for cutting holes. Background technique [0002] Existing cutting tools for machining holes include twist drills, reaming drills, countersinks, reamers, nesting drills, deep hole drills and composite hole processing tools. When machining holes with these tools, the main cutting motion is the rotation of the tool (or the rotation of the workpiece), and the feed motion is the linear movement of the tool. When processing certain difficult-to-machine materials, ultrasonic vibration is added to the cutting motion of the tool (or workpiece) to reduce cutting force, break chips or improve processing quality and cutting efficiency. When machining a hole on a workpiece 7 with reinforced fiber composite material, the existing hole machining tool may pull out fibers during cutting, and the surface of the machined hole 8 leaves fibers (burrs) 9, see ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B51/08B23B47/04
Inventor 杨海东丁志张崇高
Owner HEFEI UNIV OF TECH
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