Rotating Sensor Head Housing for Light Grid Alignment
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Solution Overview
Problem
Existing optoelectronic sensor arrangements face limitations in adjustment flexibility and space efficiency due to restricted fastening options and complex alignment requirements, which hinder the effective deployment of light grids for monitoring applications.
Innovation Solution
A modular light grid design featuring a detachable second housing with a rotating sensor head housing, allowing for adjustable alignment and integration with machine controllers via secure electrical interfaces, along with integrated control units and protective circuits for enhanced safety and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fastening device is arranged on the housing to attach the light grid to building walls or machine frames, then the light grid can be securely mounted, but the space requirements increase and installation complexity increases
Solution Approach 1:
The fastening device is integrated directly into the sensor head housing, merging the mounting function with the sensor housing structure. This eliminates the need for separate fastening components and reduces overall space requirements while maintaining secure attachment to building walls or machine frames.
Solution Approach 2:
The sensor head housing serves multiple functions: it protects the sensitive optical components, provides structural support, and acts as the fastening device for mounting. This multi-functionality reduces the need for additional components and minimizes space requirements.
2Adaptability or versatility
If a fastening device with alignment capability is used to enable adjustment of the housing relative to the frame profile, then the adjustability is improved, but the device complexity increases
Solution Approach 1:
The sensor head housing is designed with rotational capability around the housing longitudinal axis, allowing dynamic adjustment of the light grid's orientation. This rotational freedom provides adjustment flexibility without requiring complex alignment mechanisms, as the housing can be rotated to the desired angle and then secured.
Solution Approach 2:
The system is divided into a stationary second housing and a rotatable sensor head housing. This segmentation allows the sensor head to be independently adjusted relative to the mounting structure, providing flexibility without complicating the overall fastening device.
3Stability of the object's composition
If the sensor head housing is fixed in position within the second housing, then the structural stability is improved, but the adjustment flexibility is reduced
Solution Approach 1:
The sensor head housing is designed to rotate around the housing longitudinal axis within the second housing, transforming the fixed position into a dynamically adjustable one. This allows the system to maintain structural stability when mounted while providing flexibility for alignment adjustments during installation and operation.
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 modular design enables flexible adjustment and secure connection of light grids, improving safety and adaptability while reducing space requirements and allowing for various sensor configurations, thus enhancing the effectiveness of optoelectronic sensor systems.
Implementation Method 1
at least one light emitter and/or a light receiver is arranged, with the housing having at least one front pane in a side wall, which is used for the light or light emitted by the light emitter the light detected by the light receiver is transparent
Data Source
Figure 1a
Figure 1b
Figure 2
AI summary
Light grid with a first sensor head housing (2) having a housing longitudinal axis (4) with several light transmitters (6) and/or several light receivers (8), at least one first evaluation unit (10) which is arranged in the sensor head housing (2) for evaluating received signals and for outputting analog or digital received data (12), wherein a second housing (14) is provided which is detachably connected to the sensor head housing (2), wherein the sensor head housing (2) can only be connected to the second housing (14) by means of a first electrical interface (16) and the second housing (14) can be connected to a machine control (20) by means of a second electrical interface (18), wherein the sensor head housing (2) is rotatably mounted in the second housing (14) about the housing longitudinal axis (4).