Swivel Pendulum Chuck Jaw Radial Adjustment
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Solution Overview
Problem
Existing system pendulum apparatuses for chucks are limited in their ability to clamp workpieces across a large diameter range, particularly for non-circular workpieces, requiring multiple pendulum jaws of different sizes and restricting efficient machining to mass production scenarios.
Innovation Solution
A system pendulum apparatus with an axially swivelable connection between a pendulum element and a basal element, featuring a pivot bearing, coupling device, return device, and fixing device, allowing for radial adjustment and universal use on conventional chucks, enabling clamping of workpieces within a wide diameter range through exchangeable and fixable clamping elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple pendulum jaws of different sizes are used to clamp workpieces across a large diameter range, then the clamping capability is improved, but the device complexity and cost increase
Solution Approach 1:
The pendulum jaw is designed with dynamic adjustability, allowing it to change its effective clamping radius during operation. The jaw can be positioned at different radial locations along its swing arc, enabling a single jaw to adapt to multiple workpiece diameters without requiring multiple fixed-size jaws.
Solution Approach 2:
A single pendulum jaw design serves multiple functions by accommodating workpieces of varying diameters through radial adjustment. The jaw structure includes a guide groove and positioning mechanism that allows it to universally clamp different sized workpieces, replacing the need for multiple specialized jaws.
2Adaptability or versatility
If multiple pendulum jaws of different sizes are used to cover various workpiece diameters, then the clamping range is improved, but the ease of operation deteriorates due to frequent jaw exchanges
Solution Approach 1:
The pendulum jaw incorporates a dynamic radial adjustment mechanism that allows operators to change the effective clamping radius by moving the jaw along its swing arc, eliminating the need to physically exchange jaws for different workpiece sizes.
Solution Approach 2:
The adjustment mechanism is designed to allow quick radial repositioning of the pendulum jaw before clamping operations begin, enabling fast adaptation to different workpiece diameters without time-consuming jaw exchanges.
3Manufacturing precision
If the pendulum jaw is fixed in position, then the manufacturing precision is maintained, but the adaptability to different workpiece diameters is reduced
Solution Approach 1:
The pendulum jaw system combines dynamic radial adjustability with precise positioning capability. The jaw can be set to specific radial positions and locked in place, maintaining manufacturing precision while allowing adaptation to different workpiece diameters through controlled repositioning.
Solution Approach 2:
The system changes the geometric parameter of the pendulum jaw's radial position to adapt to different workpiece diameters. By adjusting the radius at which the jaw applies clamping force, the system maintains precise clamping while accommodating various workpiece sizes.
Data Source
AI summary
A system pendulum apparatus (13) is provided for a chuck and a method is provided for the clamping of workpieces with a pendulum element (16) and a basal element (30). An axially swivelable connection is provided between the pendulum element and the basal element by way of an element connection device. A swivel range a of the pendulum element can be restricted by a restriction device (39), and the pendulum element can be returned by a return device to a central position of the swivel range. The pendulum element can be fixed within the swivel range by a fixing device (23). The basal element can be joined by a joining device to one jaw of a chuck (10). The pendulum element has a clamping device with two exchangeable clamping elements (20), which are displaceable and fixable.