Device for inspecting workpiece surfaces and strip materials

A technology for inspecting the workpiece surface and inspecting the workpiece. It is applied in the field of devices for inspecting the workpiece surface. It can solve the problems of changing the surface temperature of the strip material, being unable to be used, and damaging the sensitive surface of the strip material, etc., and achieves the effect of accurate positioning.

Inactive Publication Date: 2016-09-21
ZS HANDLING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the device described so far cannot be used for two reasons: on the one hand, the sensitive surface of the belt material would be damaged by the direct mechanical contact of the support wheel with the belt material and on the other hand it would sites where the surface temperature of the strip material changes

Method used

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  • Device for inspecting workpiece surfaces and strip materials
  • Device for inspecting workpiece surfaces and strip materials

Examples

Experimental program
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Embodiment Construction

[0015] The device for surface inspection is explained in more detail with an example in conjunction with the two drawings:

[0016] picture 1 shows the tunnel furnace 1 , in which the heat treatment process is carried out. belt material 2 on driven rollers 3 is guided through the tunnel furnace on 1 . In the tunnel furnace 1 at the inlet, by means of spraying devices 4 spray paint onto the strip material 2 superior. In the tunnel furnace 1 A schematically shown sensor unit for surface inspection is arranged at the outlet of 5 . The sensor unit 5 hanging on a movable suspension 6 at and with 300 mu m The distance overhanging the strip material 2 above. Note that the sensor unit 5 The distance with respect to the surface of the strip material without the aid of the movable suspension 6 adjust. the suspension 6 used only to withstand the sensor unit 5 part of the weight. The remaining part of the weight is used as t...

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Abstract

The invention relates to a device for inspecting workpiece surfaces, having the following features: a sensor (7) which is designed to inspect a workpiece surface, a sonotrode (8a, 8b) which has a sound-radiating surface and is rigidly connected to the sensor (7) in order to form a sensor unit (5), and a movable positioning device (6), which is coupled to the sensor unit (5), for positioning the sensor unit (5) opposite the workpiece surface. The positioning device (6) has pressing means which press the sensor unit (5) in the direction of the workpiece surface, and the sound-radiating surface of the sonotrode (8a, 8b) vibrates ultrasonically such that an ultrasonic levitation force field is produced in the presence of a gaseous medium between the workpiece surface and the sound-radiating surface. The force field generates a counterforce directed against the pressing force, whereby the sensor unit (5) is kept at a distance to the workpiece surface in a hovering manner, and the sensor is designed to detect different physical effects, such as surface-structure deviations or color deviations for example.

Description

technical field [0001] The invention relates to a device for inspecting workpiece surfaces by means of sensors, such as eg cameras or eddy current sensors. The invention relates in particular to a device which is suitable for maintaining the sensor at a constant distance from the workpiece surface and for rapidly correcting distance changes. The invention also relates to the inspection or measurement of material properties on the strip material. Background technique [0002] Systems are known from the prior art which enable the inspection of workpieces or surfaces with material strips. For this, the sensor must be held exactly in the previously determined position. For example, when carrying out an optical inspection by means of an optical system with very little depth resolution, the distance between the optics of the system and the workpiece surface must be kept constant when the optical system is guided over the workpiece surface. Such systems are known from documents ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/89
CPCG01N21/8901F16C32/0603G01B7/10G01B11/06G01N21/84G01N27/72G10K15/00
Inventor M.希尔普J.齐默曼A.齐茨曼
Owner ZS HANDLING
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