Machining Tool Safety Detection Device With Sliding Barrier
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Solution Overview
Problem
Existing mechanical machining machines pose safety risks due to movable detection devices that can accidentally hit operators, especially when objects like boxes or barrels are present, and the detection devices are not adequately protected to prevent such incidents.
Innovation Solution
A protection element is integrated with the detection device, allowing it to lift and interrupt the light beam, thereby blocking the tool's movement and providing the operator time to move to a safe position, while also being designed to move between idle and active configurations to prevent accidental contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the detection device is locked together with the tool and movable with respect to the bearing structure, then the safety detection function is improved, but the risk of accidentally hitting the operator increases
Solution Approach 1:
The detection device is separated from the tool and made stationary with respect to the bearing structure, while the tool remains movable. This segmentation allows the detection device to independently monitor the work area without being affected by tool movement, eliminating the risk of accidental contact while maintaining safety detection functionality.
Solution Approach 2:
A stationary detection device acts as an intermediary between the control system and the movable tool. It monitors the work area and sends signals to block tool movement when operators are detected, without being physically connected to or moving with the tool, thus preventing accidental contact.
2Object-affected harmful factors
If the detection device is stationary with respect to the bearing structure, then the risk of accidentally hitting the operator is reduced, but the detection coverage may be limited
Solution Approach 1:
The stationary detection device is designed with multiple detection zones and adjustable parameters to cover the entire work area effectively. It performs multiple functions including detecting operators in different positions, monitoring tool movement, and triggering appropriate safety responses, thereby maintaining comprehensive coverage despite being stationary.
Solution Approach 2:
The detection system utilizes multiple dimensions including horizontal coverage, vertical coverage, and temporal monitoring to ensure complete surveillance of the work area. By detecting operators at various heights and positions and responding in real-time, the stationary device achieves comprehensive coverage equivalent to or exceeding that of movable devices.
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 solution effectively prevents accidents by allowing the operator to notice the detection device's descent and move to safety, ensuring the tool stops without risking injury, thus enhancing overall safety conditions in mechanical machining environments.
Implementation Method 1
a detection device 7 for detecting the presence of an operator in the work area 5, such as a laser device or the like
Data Source
Figure 1
Figure 2~3
AI summary
The machine (1) for mechanical machining comprises a bearing structure (2) which has at least a resting surface (3) on which at least one object to be machined can be positioned, at least a tool (4) associated movable with the bearing structure (2) close to / away from the resting surface (3), between the tool (4) and the resting surface (3) being defined a work area (5), safety means (6) comprising a detection device (7) for detecting the presence of an operator in the work area (5), the detection device (7) being adapted to emit a light beam and locked together with the tool (4), wherein the safety means (6) comprise at least a protection element (8) associated in a sliding manner with the detection device (7) and defining at least an abutting surface (9) arranged below it and wherein the protection element (8) defines at least an abutting surface (9) arranged below it and movable between at least an idle configuration and at least an active configuration, said protection element (8) comprising at least a barrier element (15) adapted to allow and interrupt the passage of the light beam in the idle configuration and in the displacement from the idle configuration to the active configuration, respectively.