Modular Pulling and Compression Tool With Quick-Coupled Screw Drive
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Solution Overview
Problem
Existing hand-held pulling and compression devices have limited application possibilities due to their design, particularly the screw drive and drive unit, restricting their versatility in performing various work operations.
Innovation Solution
A modular hand-held device with a tool unit, screw drive, and drive unit connected via a coupling system, allowing for interchangeable tool units and quick coupling mechanisms to transmit both tensile and compressive forces, enabling flexible operation with different tools for diverse work tasks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed design of screw drive and drive unit is used, then the device structure is simple, but the application possibilities are limited
Solution Approach 1:
The device is divided into separate modular components: a drive unit with screw drive and interchangeable tool units. This segmentation allows different tool units to be attached to the same drive unit, expanding application possibilities without redesigning the entire device structure.
Solution Approach 2:
The drive unit with standardized coupling is designed to be universal, capable of operating multiple different tool units for various applications such as blind rivet setting, punching, and other joining operations, thereby improving adaptability while maintaining a consistent base structure.
2Adaptability or versatility
If multiple different interchangeable tools are used for different work operations, then the versatility is improved, but the device complexity increases
Solution Approach 1:
Multiple tool functions are merged into a single modular system where different tool units can be attached to one drive unit. This combining approach allows users to have multiple capabilities in one base device, improving versatility while reducing the need for multiple separate tools.
Solution Approach 2:
The tool unit configuration is made dynamic and changeable through quick-coupling mechanisms, allowing users to adapt the device to different work operations by simply changing tool units rather than dealing with fixed, complex multi-functional integrations.
3Ease of operation
If a standardized coupling system is implemented, then the ease of operation is improved, but the manufacturing complexity increases
Solution Approach 1:
A standardized coupling acts as an intermediary interface between the drive unit and various tool units. This mediator component simplifies the connection and disconnection processes, making tool replacement easy while concentrating the manufacturing complexity into a single standardized component that can be produced efficiently.
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 device enables simple and flexible use of different tools, allowing for efficient setting of blind rivets and punching operations, with reliable force transmission and easy tool replacement, enhancing operational convenience and versatility in vehicle workshops.
Implementation Method 1
a battery-operated electric motor for driving the threaded spindle
Implementation Method 2
The screw drive converts a rotational movement of the electric motor into a linear movement of the pulling and pressing tool
Implementation Method 3
The coupling unit is connected to the threaded nut in such a way that both tensile and compressive forces resulting from the direction of movement of the threaded spindle and the resulting linear adjustment of the threaded nut are reliably transmitted to the coupling unit
Data Source
AI summary
The invention relates to a hand-held pulling and compression device for driving interchangeable tools. In order to provide a hand-held pulling and compression device which can be used simply and flexibly for different work operations, it is provided that the pulling and compression device has a tool unit with a screw drive and a tool holder. The screw drive has a threaded spindle mounted rotatably on a housing body and a threaded nut mounted rotatably on the threaded spindle and non-rotatably on the housing body via a bearing unit. In addition, the pulling and compression device has a drive unit with a battery-operated electric motor for driving the threaded spindle, which drive unit can be connected to the tool unit via a coupling.