Tilting-Shaft Deburring Head for Vibration-Stable Cutting
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Solution Overview
Problem
Conventional deburring devices are prone to vibration during the deburring process, which can lead to inefficiencies and potential damage to the machine tools and workpieces.
Innovation Solution
A deburring apparatus comprising a housing, a recovery rod, a tilting shaft, an elastic member, a holder, a rotary-to-rectilinear motion conversion mechanism, and a rotation transmission mechanism, which allows for controlled movement and separation of flange portions to mitigate vibration by converting rotational motion into linear motion and transmitting rotation to the tilting shaft, enabling effective cutting without excessive vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the device-holding part is forced toward the shank by a tilting forcing member, then the cutter can maintain contact with the workpiece, but the deburring device vibrates during operation
Solution Approach 1:
The patent applies the dynamics principle by making the holder rotatable relative to the tilting shaft, allowing the system to dynamically adjust during operation. The holder can rotate in response to cutting resistance, converting harmful vibration into useful rotational motion that maintains cutter contact with the workpiece while reducing harmful vibrations
Solution Approach 2:
The patent implements periodic action through the rotary-to-rectilinear motion conversion mechanism that converts the periodic rotation of the holder into reciprocating linear motion of the recovery rod. This periodic reciprocation separates and contacts the flange portions rhythmically, maintaining stable cutter contact while mitigating vibration through controlled periodic movement
2Device complexity
If the holder is fixed on the tilting shaft, then the structure is simple, but the cutter cannot adapt to cutting resistance variations
Solution Approach 1:
The patent transforms the static fixed holder into a dynamic rotatable holder that can adjust its position relative to the tilting shaft. This rotational freedom allows the cutter to adapt to varying cutting resistance by rotating in the direction opposite to the cutting force, improving versatility while maintaining reasonable structural complexity through the defined rotation mechanism
3Ease of operation
If the recovery rod is continuously forced toward the tilting shaft, then the flange portions remain separated, but excessive vibration occurs during non-processing periods
Solution Approach 1:
The patent uses periodic action by implementing a rotary-to-rectilinear motion conversion mechanism that converts continuous rotation into periodic reciprocating motion. The recovery rod alternates between separating and contacting the flange portions in a rhythmic cycle, maintaining ease of operation during processing while reducing vibration during non-processing periods through controlled periodic contact
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces vibration in the deburring apparatus, enhancing the precision and efficiency of the deburring process by allowing the cutter to rotate relative to the tilting shaft in the opposite direction of the cutting resistance, thereby minimizing vibration and ensuring stable operation.
Implementation Method 1
The elastic member forces the recovery rod toward the tilting shaft
Implementation Method 2
the rotary-to-rectilinear motion conversion mechanism separates the first flange portion from the second flange portion and brings the plunger into contact with the recovery rod
Implementation Method 3
The rotation transmission mechanism transmits a rotation of the housing to the tilting shaft
Data Source
AI summary
The disclosure provides a deburring apparatus comprising a housing which includes a shank and a mechanism chamber arranged along a shank-axis; a plurality of transmission rods which are arranged around the shank-axis in parallel with the shank-axis and fixed to the mechanism chamber; a tilting shaft which is arranged along a tilting axis passing through a tilting center on the shank-axis and is tiltable around the tilting center. The tilting shaft includes a flange portion, a receiving portion which includes an abutting surface, is arranged in the flange portion, and is penetrated by the transmission rods respectively; and a rod portion which is arranged on a distal end side of the flange portion and holds a cutter. Each of the transmission rods includes a bulge portion which is arranged on a plane perpendicular to the shank-axis and passing through the tilting center and is in contact with the abutting surface.