Scroll Compressor Tensioning Sleeve for Two-Sided Machining Access
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Solution Overview
Problem
Existing clamping devices for scroll compressors allow machining from only one side, requiring re-clamping for machining the opposite side, which is complex and time-consuming.
Innovation Solution
A clamping device with a clamping sleeve featuring material weakening sections and a clamping unit that allows the workpiece to be clamped from both sides, utilizing a deformable clamping section and a fluid-based clamping mechanism to uniformly distribute force, enabling machining from both sides without re-clamping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional clamping device with external clamping grooves or spiral chuck is used, then the workpiece can be clamped securely, but the workpiece can only be machined from one side and requires re-clamping for the opposite side
Solution Approach 1:
The clamping device is divided into a frame, a clamping sleeve with continuous opening, and clamping units positioned at opposite sides. This segmentation allows the workpiece to be clamped and accessed from both sides simultaneously, eliminating the need for re-clamping and enabling machining from both sides without time loss.
Solution Approach 2:
The clamping sleeve features a continuous opening that provides access from both sides of the workpiece along the axial dimension. This dimensional change from single-sided to dual-sided access allows operators to machine both sides of the workpiece without removing and re-clamping it, directly addressing the machining accessibility and time loss contradiction.
2Ease of operation
If material weakening sections are added to enable deformability, then the clamping section can move easily to achieve clamping, but the structural strength may be reduced
Solution Approach 1:
Material weakening sections are strategically placed only in specific regions of the clamping sleeve where controlled deformability is needed, while other regions maintain full structural strength. This local quality approach allows the clamping section to deform easily for clamping operation while preserving the overall strength and rigidity of the clamping sleeve structure.
Solution Approach 2:
The clamping section incorporates material weakening sections that create a flexible, deformable structure similar to thin films or flexible shells. This allows the clamping section to bend and move easily under applied force to achieve clamping, while the flexible design maintains sufficient strength through its geometric configuration and material distribution.
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
Facilitates machining of scroll compressor components from both sides, reducing the need for re-clamping and simplifying the machining process, while allowing for easier adaptability to different tools and improved clamping force distribution.
Implementation Method 1
at least two material weakening sections which are arranged on both sides of the clamping section between the contact section and the clamping section and connect the clamping section to the contact section, which delimit the hollow space between the clamping section and the contact section and which are deformable when the force is built up by the clamping means
Implementation Method 2
at least one clamping means, which is arranged between the clamping sleeve and the frame and by means of which a force can be built up that is uniformly distributed along the circumferential direction with respect to the central axis and acts on the clamping section in the direction of the central axis
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a clamping device (2) for a scroll compressor with at least one frame (4) having a continuous opening (8) extending circularly around a central axis (6) and surrounded by an inner wall (10) of the frame (4), with at least one clamping sleeve (12) arranged in the opening (8) of the frame (4), which has a contact section (14) extending around the central axis (6) and bearing in contact with the inner wall (10) of the frame (4) with an outer surface (16) corresponding to, in particular complementary to, the inner wall (10) of the frame (4), and which comprises a clamping section (18) extending around the central axis (6) and having a continuous recess (20) extending circularly around the central axis (6) and surrounded by an inner surface (22) of the clamping sleeve (12) against which a workpiece, in particular an F- or O-Scroll, which can be arranged to fit snugly across the entire surface,and with at least one clamping unit (24) comprising at least one clamping device (26) arranged between clamping sleeve (12) and frame (4) and by which a force can be built up that is uniformly distributed along the circumferential direction with respect to the central axis (6) and acts on the clamping section (18) in the direction of the central axis (6).