Quick-Tightening Adapter for Gripper Element Conversion

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing gripping devices require time-consuming conversion of gripping elements, which is inefficient for small batch assembly operations, as they rely on manual or tool-operated clamping mechanisms that are not quick or maintenance-free.

Innovation Solution

A quick-release adapter with a clamping spindle and clamping sleeves that engage through a translational and rotational movement, allowing for rapid and secure attachment and detachment of gripping elements using a mechanical interface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual or tool-operated clamping mechanisms are used to attach gripping elements, then the gripping device can be assembled, but the conversion time between different gripping elements is time-consuming

Engineering Contradiction:
Improveconversion speedVSAvoidconversion time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The clamping spindle is designed to rotate between clamped and release states, enabling dynamic switching between different gripping elements. The rotational movement of the clamping spindle allows rapid engagement and disengagement of clamping sleeves, transforming the static clamping mechanism into a dynamic quick-change system that significantly reduces conversion time

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The gripping device is segmented into modular components: the base body with clamping spindle, the gripping element with clamping sleeves, and the interface elements. This segmentation allows independent replacement of gripping elements without affecting the base structure, enabling rapid conversion by simply attaching or detaching segmented components rather than reassembling the entire device

Inventive Principle:
Principle #1Segmentation

2Loss of time

If a quick-release adapter with rotational clamping movement is used, then conversion time is reduced, but the device complexity increases

Engineering Contradiction:
Improveconversion timeVSAvoidclamping mechanism complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The clamping spindle with its rotational interface serves multiple functions: it provides clamping force through rotation, enables quick release by reversing rotation, and accommodates multiple clamping sleeves simultaneously. This multi-functionality reduces the need for separate mechanisms for each operation, thereby reducing overall device complexity while maintaining quick-change capability

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The clamping sleeves are designed to nest onto the gripping element and engage with the clamping spindle through recesses. The nested structure allows the clamping interfaces to be compactly integrated without requiring additional external components, reducing structural complexity while enabling rapid attachment and detachment

Inventive Principle:
Principle #7Nested doll (Nesting)

3Reliability

If multiple clamping sleeves are used on the gripping element, then secure attachment is achieved, but the device complexity increases

Engineering Contradiction:
Improveattachment securityVSAvoidinterface complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Multiple clamping sleeves are merged into a single integrated gripping element structure, where all clamping interfaces are combined on one component. The clamping spindle engages with multiple sleeves simultaneously through a single rotational action, combining multiple clamping functions into one unified mechanism that achieves secure attachment without proportionally increasing complexity

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3305480B1Quick tightening adapter with an interface for gripping elements
Publication Date: 2020.05.20 ZIMMER GUNTHER
  • EP3305480B1 patent drawingFigure 1
  • EP3305480B1 patent drawingFigure 2~4
  • EP3305480B1 patent drawingFigure 5~7

AI summary

The invention relates to a quick-release adapter with a gripper element interface for a gripping device (10) for adapting a gripper element (1, 2) to a slide (15) or swivel arm of the gripping device (15). The quick-release adapter (30) has a base body (31) that can be attached to the slide. A clamping spindle (60, 80), consisting of at least one part, is arranged in the base body. At least two clamping sleeves (91, 92) with a rear grip (93) are arranged on the gripper element and can be inserted into recesses (41, 42) of the base body (31). The clamping spindle has a clamping flank (71) for each clamping sleeve. The clamping flanks of the clamping spindles can be brought into engagement with the rear grips of the clamping sleeves by at least one translational movement. The present invention provides an adapter for a gripping device that allows interchangeable gripper elements to be adapted to the gripping device quickly, securely, and maintenance-free.