Shot Processing Apparatus Clamp Unit for Workpiece Positioning
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Solution Overview
Problem
Existing shot processing apparatuses fail to effectively fix a manufactured article at a prescribed position inside the projection chamber during processing.
Innovation Solution
A shot processing apparatus comprising a work set jig, a hanger transport device, a projection machine, a projection positioning unit, and a clamp unit, where the clamp unit includes a holding member and an elastic member to securely fix the workpiece between the upper and lower cross members, allowing precise positioning and stability during projection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the workpiece is transported while hanging on a hook portion of a trolley hanger, then the workpiece can be moved through the projection chamber, but the workpiece cannot be fixed at a prescribed position inside the projection chamber
Solution Approach 1:
The work set jig is divided into separate functional components: the base member for positioning, the cross members for support, and the clamp unit for fixation. This segmentation allows the workpiece to be transported in a hanging state while enabling precise positioning and fixation at the projection chamber through coordinated action of these modular components
Solution Approach 2:
The system transitions from a static hanging transport method to a dynamic system that can adapt between transport mode (hanging on hanger transport device) and processing mode (fixed by clamp unit at prescribed position). The work set jig dynamically changes its fixation state based on operational requirements, achieving both ease of transport and positioning precision
2Manufacturing precision
If a clamp unit is added to fix the workpiece during positioning, then the workpiece can be fixed at a prescribed position, but the device complexity increases
Solution Approach 1:
The clamp unit is integrated with the work set jig structure, merging the positioning base member, support cross members, and clamping mechanism into a single unified fixture system. This combination achieves precise workpiece fixation without requiring separate independent positioning and clamping devices, thereby limiting the increase in overall device complexity
Solution Approach 2:
The work set jig serves multiple functions: it acts as a transport interface (hanging from hanger transport device), a positioning system (base member with prescribed position), a support structure (cross members), and a fixation mechanism (clamp unit). This multi-functionality reduces the need for separate specialized devices, balancing positioning precision with device complexity
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
Enables the workpiece to be consistently fixed at a prescribed position within the projection chamber, preventing deterioration from projection media impact and facilitating precise processing without the need for additional countermeasures.
Implementation Method 1
a clamp unit configured to fix a workpiece between the upper and lower pair of cross members while in a state in which the projection positioning unit is positioning the work set jig at the stopping position in the projection chamber, wherein the clamp unit includes a holding member to hold a workpiece set at the base member, and an elastic member to urge the holding member toward the workpiece set at the base member
Data Source
AI summary
A shot processing apparatus is equipped with a work set jig, a hanger transport device, a projection machine, a projection positioning unit and a clamp unit. The work set jig is equipped with a base member including an upper and lower pair of cross members and a vertical member. A workpiece is settable at the base member between the upper and lower pair of cross members. The hanger transport device is, with the work set jig in a hanging state, movable along a guide path in the shot processing apparatus and is capable of stopping thereon. The projection machine projects projection media at a workpiece set at the base member inside a projection chamber which the workpiece is conveyed into. The projection positioning unit positions the work set jig at a stopping position in the projection chamber. The clamp unit fixes a workpiece between the upper and lower pair of cross members.