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Recording apparatus

A recording device and image recording technology, which can be applied to measuring devices, photographing devices, optical devices, etc., can solve the problems of heavy telecentric optical devices, increased costs, and limitations

Active Publication Date: 2020-11-17
ASM ASSEMBLY SYST GMBH & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The basis for utilizing such telecentric optics is that not all elements can be measured on the optical axis, so in entocentric optics, uncertainties in the z representation can lead to lateral measurement errors, resulting in affixing Pretending to be inaccurate
[0004] However, these known solutions have the disadvantage that such telecentric optics are technically complex in terms of production and may therefore be accompanied by increased costs
Additionally, telecentric optics are heavier and larger than comparable pericentric optics, requiring additional assembly space
Scalability with eg higher resolution optics may also be limited by higher technical complexity

Method used

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Examples

Experimental program
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Embodiment Construction

[0086] In the following, the same reference numerals are used in the figures for the same technical features of the different embodiments.

[0087] figure 1 with figure 2Both show an automatic placement machine 100 according to the invention for placing a component 1 on a printed circuit board 2 . The figure also schematically shows a recording device 10 according to the invention for determining at least one position of an object 1 . Only one imaging system 20 of all imaging systems 20 representing the recording device 10 is shown here in a simplified manner in order to clarify the imaging properties of the pericentric imaging optics 30 on the basis of this figure. In addition, for simplification and unified representation, refer to figure 1 The schematic arrangement of is "rotated" by 180° relative to a possible actual arrangement, so that the recording device 10 and the component 1 can actually be located above the printed circuit board 2 . The imaging system 20 is use...

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Abstract

The invention relates to a recording device (10) for an automatic mounter (100) for determining at least one position of an object (1) in a detection region (200) in the automatic mounter (100), comprising: a first imaging system (21) for acquiring a first sub-region (211) of the detection region (200) in order to provide a first image record (221) of the first sub-region (211); at least one second imaging system (22) for acquiring at least one second sub-region (212) of the detection region (200) to provide at least one second image record (222) of the second sub-region (212); wherein the imaging systems (21, 22) are juxtaposed to each other such that at least the first and second sub-regions (211, 212) overlap, in order to determine correction information for determining the position onthe basis of the image records (221, 222).

Description

technical field [0001] The invention relates to a recording device for an automatic placement machine for determining at least one position of an object in a detection area in the automatic placement machine. The invention also relates to an automatic placement machine and a method. Background technique [0002] It is known in the prior art to use camera systems in automatic placement machines, ie machines for placing printed circuit boards. They are used, for example, as movable cameras for the printed circuit board to determine the position of the printed circuit board relative to an automatic placement machine. This enables very precise placement of components on the printed circuit board based on the determined positions. It is also known to use an additional still camera to measure components on the placement head. In this case, the key to reliable placement is to also determine the position of the component relative to the placement head at this time. In addition, ...

Claims

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Application Information

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IPC IPC(8): H05K13/04H05K13/08G01B11/00
CPCH05K13/046H05K13/08G01B11/00G01C11/02H05K13/0812
Inventor 卡尔·海因茨·贝施
Owner ASM ASSEMBLY SYST GMBH & CO