Zero-Point Clamping Module With Thermal Drive Isolation
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Solution Overview
Problem
Conventional clamping modules fail to maintain repeatable position accuracy and durability at high temperatures, particularly in additive manufacturing environments where electrical components and rubber seals can be damaged by elevated temperatures.
Innovation Solution
A clamping module design where the drive is thermally decoupled from the clamping mechanism using a spacer element and insulating body, allowing the drive to operate at lower temperatures, and incorporating a sealing element made of temperature-resistant materials to prevent heat transfer and hot media ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drive element and locking bodies are directly coupled without thermal insulation, then the clamping mechanism can be actuated reliably, but the temperature-sensitive drive components (seals and electronic components) are damaged by high temperatures in the production environment
Solution Approach 1:
The clamping module is divided into a hot section (clamping mechanism in the base body) and a cold section (drive unit with seals and electronics), connected only through the thermally insulating spacer. This segmentation allows each section to operate at its optimal temperature range.
Solution Approach 2:
The spacer acts as a thermal intermediary between the hot clamping mechanism and the cold drive unit. It transmits mechanical forces while blocking heat transfer, protecting temperature-sensitive components from thermal damage.
2Device complexity
If the drive is placed close to the clamping mechanism for compact design, then the device structure is simplified, but heat transfer to the drive components causes seal and electronic component damage
Solution Approach 1:
The spacer serves as a thermal barrier intermediary that can be integrated into the base body structure. While it adds some complexity, it protects the drive components from heat, ensuring long-term reliability of seals and electronics.
Solution Approach 2:
The spacer provides localized thermal insulation only where needed between the hot clamping mechanism and cold drive unit, rather than insulating the entire device. This maintains structural simplicity while protecting critical components.
3Ease of manufacture
If conventional rubber seals are used in the drive unit, then the device can be manufactured cost-effectively, but the seals are damaged and lose sealing capability at high temperatures
Solution Approach 1:
The spacer acts as a thermal mediator that isolates the seals from high temperatures. This allows conventional cost-effective rubber seals to be used in the drive unit while preventing thermal degradation through thermal insulation.
Solution Approach 2:
The seals are extracted from the hot production environment and placed in the cold drive unit, which is thermally isolated. This extraction from the thermal hazard zone allows standard seals to function reliably.
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
Enables accurate clamping of components at high temperatures by isolating temperature-sensitive components from the production environment, ensuring the longevity and reliability of the clamping module.
Implementation Method 1
at least one insulating body is provided between the drive and the drive element
Data Source
Figure 1~5
Figure 6~9
Figure 10a~11d
AI summary
Clamping module (10, 50), in particular zero-point clamping module, with a base body (12), with a clamping receptacle (14) provided in or on the base body (12) for receiving a clamping element (16), with locking elements (18) that can be displaced in the base body (12) towards a central axis (15), i.e. in a radial direction, and which act against the clamping element (16) in a locking position such that the clamping element (16) or a support part that can be arranged on the clamping element (16) is subjected to axial force against the base body (12), with a drive element (20) for actuating the locking elements (18) and with a drive (30) for driving the drive element (20), characterized in that the drive (30) is arranged at a distance from the drive element and is coupled to the drive element (20) via a spacer (26).