Clamping Jaw Locking with Eccentric Shaft for Safe Jaw Changes
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Solution Overview
Problem
Existing clamping bakery systems are not ideal in terms of simplicity and safety when changing clamping cheeks, particularly during manual or automatic changes.
Innovation Solution
A clamping bakery system with a tensioning cheek comprising a basic cheek and a top cheek that can be coupled in a direction of coupling, where the top cheek introduces elasticity and has a locking mechanism enabled by a control shaft with eccentric areas, allowing for easy locking and unlocking of the top cheek.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking mechanism is added to prevent accidental separation of the top jaw, then reliability is improved, but device complexity increases
Solution Approach 1:
The locking body is movably arranged within the receiving space of the base jaw, and the control shaft is rotatably mounted in the base jaw with the eccentric region nested within it. The locking body engages with the locking recess of the top jaw when locked, creating a nested structure where the locking components are integrated within the base jaw structure rather than adding external complexity
Solution Approach 2:
The eccentric region on the control shaft automatically presses the locking body into the locking position when the control shaft rotates, creating a self-locking mechanism. The eccentric geometry converts rotational motion into automatic locking action without requiring additional springs, actuators, or complex control systems
2Ease of operation
If a locking mechanism with control shaft is implemented, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The eccentric region on the control shaft automatically converts rotational motion into linear pressing force on the locking body. When the control shaft rotates, the eccentric geometry self-generates the locking action without requiring additional springs, actuators, or complex control systems, making the mechanism simple to operate while maintaining low complexity
Solution Approach 2:
The eccentric region creates a curved, non-circular profile on the control shaft that converts simple rotation into automatic locking motion. This curved geometry allows the locking body to be pressed into the locking recess through rotational movement alone, providing intuitive operation
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 system enables simple and safe changes of clamping cheeks by providing a reliable locking mechanism that prevents accidental separation of the top cheek during operation, enhancing both manual and automated handling processes.
Implementation Method 1
At least one eccentric region, i.e., a region that deviates from the rotational symmetry of the control shaft, is provided on the control shaft in a rotationally rigid manner. When the control shaft rotates, the eccentric section rotates and acts directly or indirectly on the locking body. The eccentric section presses the locking body into the locking position in the locking recess.
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
The invention relates to a clamping jaw (10) and a clamping jaw system (100) for clamping a workpiece. The clamping jaw (10) has a base jaw (20) and a top jaw (70). For the purpose of positioning and clamping a workpiece, the clamping jaw as a whole is moved in a positioning direction. The base jaw (20) has a contact surface (30) on its upper surface (26). The top jaw (70) has a corresponding contact surface (80) on its lower surface (76) for bearing against the upper surface (26) of the base jaw (20). To lock the top jaw (70) onto the base jaw (20), the top jaw (70) has a locking recess (86) on its lower surface (76).The base jaw (20) has a receiving chamber (36) and a locking element (40) movable within the receiving chamber. The locking element (40) is movably held in the receiving chamber (36) between a release position and a locking position. When the top jaw (70) is attached, the locking element (40) is engaged in the locking recess (86) in the locking position. A control shaft (60) is mounted in the base jaw (20), and at least one eccentric section (62) is provided on this shaft in a rotationally rigid manner. When the control shaft (60) rotates, the eccentric section (62) acts on the locking element (40) and presses it into the locking recess (86), thus securing the top jaw (70) against separation from the base jaw (20).