Turntable Cleaning Layout for Axial Workpiece End Washing
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Solution Overview
Problem
Conventional cleaning apparatuses face difficulties in efficiently cleaning and drying axially extending workpieces, such as crankshafts, due to challenges in positioning and rotating nozzles effectively around the workpiece's axis.
Innovation Solution
A cleaning apparatus with a 180-degree turntable and clamping devices on both sides of the cleaning and drying stations, allowing for axial clamping and rotation of the workpiece, combined with a lifter that moves up and down to position the cleaning table, enables efficient cleaning and drying of both ends of the workpiece while rotating it.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the cleaning table is rotated to clean axially extending workpieces, then the workpiece can be cleaned, but the nozzle must be retracted which increases cleaning time and reduces efficiency
Solution Approach 1:
The cleaning table is designed to move dynamically between a retracted position (when the workpiece is placed on the turntable) and a forward position (when the workpiece is clamped and cleaned). This dynamic positioning allows the cleaning table to approach the workpiece closely during cleaning operations, eliminating the need for nozzle retraction and reducing cycle time.
Solution Approach 2:
The workpiece is clamped to the cleaning table before the cleaning operation begins. This preliminary clamping action ensures the workpiece is securely fixed in position, allowing the cleaning table to move forward and clean the workpiece without requiring nozzle retraction or repositioning during the cleaning process.
2Manufacturing precision
If the nozzle is positioned close to the workpiece for effective cleaning, then cleaning quality improves, but the workpiece cannot be properly rotated and cleaned from all angles
Solution Approach 1:
The cleaning system uses multiple nozzles arranged at different positions and angles around the cleaning table. This segmentation allows each nozzle to target specific areas of the workpiece, enabling comprehensive cleaning of all surfaces including end faces and outer circumferential surfaces without requiring the workpiece to rotate.
Solution Approach 2:
The cleaning table moves in the axial direction (forward and backward) relative to the workpiece, adding a dimensional aspect to the cleaning process. This axial movement, combined with the stationary positioning of nozzles, allows the cleaning table to access different surfaces of the workpiece without requiring workpiece rotation.
3Reliability
If clamping devices are added to secure the workpiece on the cleaning table, then cleaning stability improves, but device complexity increases
Solution Approach 1:
The clamping function is extracted as a separate, dedicated component (clamping device) that is independently controllable. The clamping device includes a clamping plate and clamping means that can be activated only when needed, separating the clamping function from the cleaning table structure and reducing overall system complexity.
Solution Approach 2:
The clamping device is designed to automatically clamp and release the workpiece based on the operational cycle. The clamping means engage with the workpiece when the cleaning table moves forward and release when it retracts, providing self-service clamping without requiring complex manual intervention or additional control mechanisms.
Data Source
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AI summary
Cleaning apparatus (10) for cleaning a workpiece (3), including a cleaning chamber (19) having a first side wall and a second side wall, a cleaning station (97) including a cleaning axis, a cleaning nozzle, a first clamping device (51) arranged on the first side wall, a second clamping device (151) arranged on the second side wall, and a drying station (95) including a drying axis (121), a drying nozzle (85b), a second clamping device (151) arranged on the second side wall, and a turn table (87) having two regions arranged in a 180 degree rotational symmetry. The turn table (87) arranges one of the two regions is arranged in the cleaning station (97), and the other in the drying station (95).