Adjustment Device for Precision Angle Scaling

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing angle measuring systems face challenges in achieving high precision due to assembly deviations and misalignment issues, particularly in systems without their own bearings, leading to measuring errors and difficulties in accurately displacing components by small fractions of a millimeter.

Innovation Solution

A device comprising an adjustment means with an actuating mechanism, a contact area, a joint, and a fastening means, which utilizes a one-sided lever principle to transmit forces and restore torques, allowing for precise adjustment of a body with a scale, enabling accurate alignment and high-precision angle measurements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a measuring device is used to center a body with angle scaling by placing it at defined points and moving the body according to measurement results, then alignment accuracy can be improved, but the difficulty of accurately displacing the body by less than hundredths or thousandths of a millimeter increases

Engineering Contradiction:
Improvealignment accuracyVSAvoiddifficulty of accurate displacement
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent introduces an adjustment device as an intermediary mechanism between the measuring device and the body with angle scaling. This adjustment device includes an actuating means, a contact area, a joint, and a fastening means, which together provide a mechanical system that converts small actuating movements into precise displacements of the body. The joint acts as a fulcrum in a lever system, amplifying the displacement effect while maintaining precision, thus solving the difficulty of directly displacing the body by sub-millimeter amounts.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent transforms the one-dimensional problem of direct linear displacement into a two-dimensional lever system with rotational and translational components. By using a joint as a fulcrum and creating a lever arm with the contact area and actuating means, the system achieves precise positioning through rotational movement that translates into small linear displacements, making the adjustment process more controllable and accurate.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Device complexity

If angle measuring systems are designed without their own bearings to reduce complexity, then device complexity is reduced, but assembly deviations and concentricity errors increase leading to measuring errors

Engineering Contradiction:
Improvebearing system complexityVSAvoidmeasuring accuracy
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent applies preliminary action by using the adjustment device to pre-align and center the body with angle scaling relative to the machine part before final assembly. The adjustment device allows for precise positioning and centering operations to be performed in advance, compensating for assembly deviations and ensuring that the body is correctly positioned before the angle measurement system begins operation, thus maintaining measurement accuracy without requiring complex bearing systems.

Inventive Principle:
Principle #10Preliminary action

3Manufacturing precision

If the contact area is designed to enable precise force transmission for body displacement, then adjustment precision is improved, but the complexity of the adjustment means increases

Engineering Contradiction:
Improveadjustment precisionVSAvoidadjustment means complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent merges multiple functions into the adjustment device: the actuating means provides force application, the joint serves as both a rotational pivot and a fulcrum for the lever system, the contact area transmits displacement force to the body, and the fastening means secures the device to the machine part. By combining these elements into a single integrated adjustment device, the patent achieves precise adjustment capability while minimizing the number of separate components, thus balancing adjustment precision with device complexity.

Inventive Principle:
Principle #5Merging (Combining)

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 enables extremely precise adjustment and mounting of bodies with angle scaling, simplifying the assembly process and ensuring high-precision angle measurements, reducing misalignment to micrometer levels without requiring complex assembly equipment.

Implementation Method 1

the body and the adjusting means can be brought into an operative connection according to the principle of a one-sided lever, with the joint as the fulcrum

Methodology Applied
Scientific EffectLever principle: Lever

Implementation Method 2

a force introduced by the actuating means into the adjusting means can be transmitted to the body as a displacement force via the contact area

Methodology Applied
Scientific EffectMechanical advantage: Mechanical Advantage

Implementation Method 3

the fastening means of the adjusting means can be connected to a machine part in such a way that a reaction force can be transmitted from the adjusting means to the machine part

Methodology Applied
Scientific EffectMechanical fastening: Mechanical Fastener

Data Source

PatentEP2065684B1Adjustment device and corresponding bodies with scaling and method for adjusting
Publication Date: 2016.05.25 DR JOHANNES HEIDENHAIN GMBH
  • EP2065684B1 patent drawingFigure 1
  • EP2065684B1 patent drawingFigure 2~4

AI summary

The device has a body (1) with a scaling and adjusting unit comprising an operating unit (2.1), a contact area and a joint. The body and the adjusting unit are designed in such a manner that the contact area stays in contact with the body at an attachment point. The body and the adjusting unit are brought into an effective connection with the joint according to a principle of a one-sided lever. A fastening unit of the adjusting unit is connected with a machine part (3) in such a manner that reaction force (F2.4) is transmitted from the adjusting unit to the part. An independent claim is also included for a method for adjusting a body with a scaling and adjusting unit.