Motor-Operated Crimping Tool Threaded Spindle Loading
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Solution Overview
Problem
Existing motor-driven hand pressing tools lack a simple and efficient mechanism for loading pivotable pressing jaws, requiring complex structures and inadequate manual control over clamping pressure.
Innovation Solution
A motor-driven hand pressing tool with elongated, rod-like design featuring a threaded spindle between the electric motor and gear, where the spindle is longitudinally positioned between the pressing jaws, allowing manual and motor-assisted operation with pivotable jaws and a lever system for adjustable clamping pressure detection and motor activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a motor-driven pressing tool uses a complex loading mechanism for pivotable pressing jaws, then the motor assistance and clamping force are improved, but the device structure becomes overly complicated
Solution Approach 1:
The pressing tool is divided into functionally independent segments: the pivotable pressing jaws can be manually positioned, and the motor-driven loading mechanism operates separately through a threaded spindle. This segmentation allows each component to perform its function optimally without requiring complex integration between manual positioning and motor-driven loading.
Solution Approach 2:
Instead of using a complex mechanism to directly drive the pressing jaws, the invention uses a threaded spindle that converts rotational motor motion into linear loading motion. The motor drives the spindle rotation, which in turn moves the loading part linearly along the spindle axis, effectively inverting the typical direct-drive approach.
2Ease of operation
If the pressing tool allows manual positioning of pressing jaws, then operational flexibility and control are improved, but the time required for positioning and operation increases
Solution Approach 1:
The pressing jaws are pre-positioned manually to the desired location before motor-driven loading begins. This preliminary manual positioning eliminates the need for complex real-time coordination between manual adjustment and motor operation during the pressing cycle, reducing overall operation time.
Solution Approach 2:
The design enables continuous useful action by allowing the motor-driven loading mechanism to operate independently once the pressing jaws are positioned. The threaded spindle continuously converts rotational motion to linear loading motion without interruption, maintaining constant productive action throughout the pressing process.
3Device complexity
If the motor-driven loading mechanism uses a threaded spindle arrangement, then the structure is simplified and motor assistance is improved, but the precision of manual positioning may be reduced
Solution Approach 1:
The threaded spindle acts as an intermediary mechanism between the motor and the loading part. It translates rotational motor motion into precise linear motion through its thread geometry, providing accurate positioning without requiring complex direct-drive mechanisms. The spindle's thread pitch determines the precision of the linear positioning.
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
This design enhances the loading mechanism by providing a straightforward structure for motor-assisted operation while allowing precise manual control, significantly increasing the hand force applied to the pressing jaws, ensuring effective clamping and reducing operational complexity.
Implementation Method 1
a threaded spindle (25) which can be driven by the electric motor (2), via the gear (3), in such a way that the moving part (26) is moved by the spindle (25)
Implementation Method 2
If a manually applied clamping pressure on a workpiece held in a press jaw is exceeded, the lever part (14) is displaced together with the bearing axis (58) in the elongated hole(s) (59)
Data Source
Figure 1
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AI summary
The invention relates to a motor-operated hand crimping tool (1), in particular a crimping tool, with a fixed mounting part (9) in which at least one crimping jaw (5, 6) pivotable about a pivot axis is mounted, which crimping jaw (5, 6) forms a working area (10, 11) on one side of the pivot axis and an actuation area (12) extending in the longitudinal direction of the crimping jaw (5, 6) on the other side, wherein an actuation part (36) movable relative to the actuation area (12) can act on the actuation area (12) to carry out a crimping action.In order to specify a motor-operated hand press tool with a pivoting press jaw, in which a favorable actuation of the press jaw is possible with a simple design, it is proposed that in a top view of the hand press tool (1), in which the pivot axis is represented as a point, an axially fixed threaded spindle (25) extends into an overlap with the actuation area given transversely to a longitudinal axis of the threaded spindle (25).