Tilting Deburring Tool With Spring Recovery for Vibration Control
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Solution Overview
Problem
Deburring devices often vibrate during operation, leading to inefficiencies and potential damage to machinery and workpieces.
Innovation Solution
A deburring apparatus with a rotary-to-rectilinear motion conversion mechanism, including a plunger, cam groove, and cam pin, which allows the holder to rotate opposite to the deburring apparatus' direction under cutting resistance, and a tilt recovery mechanism using a compression spring, to stabilize the deburring tool and reduce vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a deburring device with a tilting support member is used, then the cutter can adapt to workpiece surface variations, but the device becomes prone to vibration during operation
Solution Approach 1:
The elastic member (spring) applies a preliminary restoring force to counteract the tilting motion caused by cutting resistance. This pre-applied counter-force stabilizes the holder-shaft connection, preventing excessive tilting that would cause vibration while still allowing necessary adaptation to workpiece surface variations.
Solution Approach 2:
The elastic member changes the stiffness parameter of the holder-shaft connection. By introducing a compliant element with controlled elastic properties, the system achieves optimal balance between adaptability (allowing tilting) and stability (resisting vibration), transforming a rigid unstable connection into a controlled flexible connection.
2Reliability
If the holder rotates relative to the tilting shaft under cutting resistance, then the cutter maintains contact with the workpiece, but vibration increases
Solution Approach 1:
The elastic member acts as a cushioning element that absorbs and dampens the impact forces generated during cutting. By placing this energy-absorbing element in the force transmission path between the holder and tilting shaft, it reduces the transmission of vibratory forces to the workpiece and machine structure.
3Stability of the object's composition
If a rigid connection between holder and tilting shaft is used, then vibration is reduced, but the cutter cannot adapt to surface variations
Solution Approach 1:
The connection between holder and tilting shaft is transformed from a static rigid connection to a dynamic compliant connection. The elastic member allows the system to dynamically adjust its stiffness characteristics based on operating conditions, providing rigidity when needed for stability and flexibility when needed for adaptation.
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 minimizes vibrations in the deburring apparatus, enhancing operational stability and precision, thereby improving the deburring process.
Implementation Method 1
an elastic member that pushes the recovery rod when the holder rotates in the rotation direction opposite to the rotation direction of the deburring apparatus
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The present disclosure provides a deburring apparatus and a deburring method that does not require a positioning engagement part that is engaged with a fixed part of a machine tool. The deburring apparatus (10) includes a housing (1) with a shank (11), a transmission rod (3), a recovery rod (5), a tilting shaft (4), a spring (6), a holder (7), and a rotary-to-rectilinear motion conversion mechanism (9) with a plunger (8). The tilting shaft includes a second flange portion (41) opposite to a first flange portion (51) of the recovery rod, a receiving portion (41a) which the transmission rod penetrates through, and a spherical bush (24) having a tilting center (25) on the shank-axis (15). The tilting shaft can tilt around the tilting center. The spring forces the recovery rod toward the tilting shaft. The holder for fixing the cutter (101) is arranged on the tilting shaft in a manner rotatable through a predetermined rotation angle. 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 on the tilting axis (43) when the holder rotates in a direction opposite to the rotation direction of the shank (11).