CN2775602Y

CN2775602Y - Non-contact type single lens reflective laser thickness measuring device with rotary rack

Info

Publication number: CN2775602Y
Application number: CN 200520054113
Authority: CN
Inventors: 陈梓航
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-01-28
Filing date: 2005-01-28
Publication date: 2006-04-26
Anticipated expiration: 2015-01-28

Abstract

The utility model provides a non-contact type single lens reflective laser thickness measuring device with a rotary rack. The utility model comprises a computer control device provided with an operating software, a laser measurement assembly, a laser center positioning device and a rotary rack, wherein the laser measurement assembly is composed of two units of single lenses with high reflectance, a laser beam generating component and CCD digital cameras. The computer control device provided with the operating software are respectively connected with the CCD digital cameras at the upper part and the lower part. When the utility model is adopted, under the same distance of an optical path, the height is reduced and a measurable range is increased. The utility model adopts single lens reflecting laser with a larger laser reflective angle to measure a sample, and the quality of measurement is obviously enhanced. The laser center positioning device is additionally arranged, the rotary rack is matched to be used and the accuracy degree for measuring the thickness of the radius of an object under the CCD digital cameras with the same image solution degree is greatly enhanced. The data of the sample can be quickly inputted into a computer, the speed for developing a product is accelerated and the quality of the product is improved.

Description

The contactless single mirror reflection thickness measurement with laser device of band runing rest

Technical field

The utility model relates to the non-contact laser measuring thickness device, particularly a kind of device that has the sectional thickness of the outer shaped object of arbitrary surface with the contactless single mirror reflection laser measurement of runing rest.

Background technology

Advanced at present thickness measurement with laser device, as the Chinese patent Granted publication number is that CN2632629Y is disclosed, name is called: " non-contact laser measuring thickness device ", laser measuring assembly is to adopt the CCD digital camera directly to receive from the signal of sample surfaces reflection in this device, its shortcoming is under same machine dimensions, measurable scope reduces, in order to reduce volume, adopt less laser-bounce angle only, quality is measured in influence, do under the thickness measure in the CCD digital camera of using same resolution, the order of accuarcy of measuring samples is lower.

Summary of the invention

The purpose of this utility model is at above-mentioned shortcoming, provide a kind of band runing rest contactless single mirror reflection thickness measurement with laser device, adopt single mirror reflection to make laser measuring assembly, under same optical path distance, highly reduce, under same machine dimensions, measurable scope increases.Adopt bigger laser-bounce angle and single mirror reflection laser that sample is measured, significantly improve the measurement quality, increase the laser center locating device, be used runing rest, each thickness of measuring the object radius, do under the thickness measure in the CCD digital camera of using same resolution, the order of accuarcy of measurement increases substantially.

The purpose of this utility model is achieved in that single mirror reflection thickness measurement with laser device, comprises the Computer Control Unit, laser measuring assembly, laser center locating device, the runing rest that have function software.Runing rest is made up of rotating disk, rotating disc support frame and sample support frame, and the rotating disk of runing rest can be electronic or manual.Laser measuring assembly is made up of two cover high reflectance simple reflectors, laser beam generation component and CCD digital camera, and laser measuring assembly is symmetricly set on the upper and lower part of frame.The angle of the reflected ray of top high reflectance simple reflector and the axis of laser beam generation component is the 28-38 degree; The angle of the reflected ray of bottom high reflectance simple reflector and the axis of laser beam generation component is similarly the 28-38 degree.The laser center locating device is installed in the top of frame.The Computer Control Unit that has function software is connected with the CCD digital camera of upper and lower respectively.Runing rest is arranged on the centre of the laser measuring assembly of upper and lower, and the sample of thickness measuring is placed on runing rest top.Program control and the gearing of motor driven rotary components appliance computer, driven rotary support accurate localization is with the data of measuring samples thickness.Also can use manual rotary components to reduce cost,, can once cross the measurement integral thickness with U type bracket leg for small-sized object.Above-mentioned laser beam generation component emitted laser light source is the visible light LASER Light Source, and output power is in the harmless scope to human body.The CCD digital camera can be that the CCD photoelectric conversion device adds the focusing lens group.

Using method: sample is placed on the runing rest, the central point that adopts laser center locating device precise random sample product to measure, convenience is changed runing rest fast and the measured object centralized positioning, more can be used a plurality of sample runing rests and do the outer sample setting of machine, increases work efficiency.With the central point is the center of circle, penetrates laser beam with the laser beam generation component in the laser measuring assembly on top sample surfaces is carried out radius measurement, and laser beam reflexes to the high reflectance simple reflector from sample surfaces, reflexes to the CCD digital camera again; Simultaneously, also the laser beam with the bottom carries out radius measurement to sample same position lower surface, and laser beam reflexes to down the high reflectance simple reflector, reflexes to down the CCD digital camera again.Utilize the data of Computer Analysis CCD digital camera and use the principle of triangulation, but the just radius thickness of measuring samples.Follow application of motor or manually runing rest Rotate 180 degree, use another radius thickness of said method measuring samples, the thickness of intact sample accurately measures.

Owing to adopt the utility model, adopt single mirror reflection to make laser measuring assembly, under same optical path distance, highly reduce, under same machine dimensions, measurable scope increases.Adopt the single mirror reflection laser of bigger laser-bounce angle that sample is measured, significantly improve the measurement quality; Increase the laser center locating device, be used runing rest, each thickness of measuring the object radius, measure down in the CCD of same resolution digital camera, the order of accuarcy of measuring increases substantially, can import computer to the data of sample fast, thereby accelerate the speed of product development and improve the quality of products.

Accompanying drawing is described

Fig. 1 is that the components and parts of the utility model thickness measurement with laser assembly are in conjunction with schematic side view.

The perspective view that Fig. 2 combines with the components and parts of thickness measurement with laser assembly for the utility model laser center location.

Fig. 3 is the perspective view of the utility model runing rest and sample combination.

Fig. 4 is the schematic perspective view of the utility model embodiment user mode.

Embodiment

In conjunction with the accompanying drawings and embodiments, further describe structure of the present utility model.

Embodiment: as depicted in figs. 1 and 2, laser measuring assembly is arranged on the upper and lower part of frame 5.Laser center locating device 6 is arranged on the top of frame 5.Laser measuring assembly is made up of top high reflectance simple reflector 1, laser beam generation component 2, CCD digital camera 3 and bracing or strutting arrangement 4 and bottom high reflectance simple reflector 11, laser beam generation component 12, CCD digital camera 13 and bracing or strutting arrangement 14 and frame 5.Above-mentioned laser

beam generation component

2 and 12 emitted laser light sources are visible light LASER Light Source, and output power is in the harmless scope to human body.The angle of the reflected ray of top high reflectance simple reflector 1 and the axis of laser beam generation component 2 is 33 degree; The angle of the reflected ray of bottom high reflectance simple reflector 11 and the axis of laser beam generation component 12 is similarly 33 degree.The Computer Control Unit existing equipment that has function software is connected with 13 with the CCD digital camera 3 of upper and lower respectively.As shown in Figure 3 and Figure 4, runing rest is made up of rotating disk 21, rotating disc support frame 22 and sample support frame 23, and runing rest is arranged on the centre of the laser measuring assembly of upper and lower, the sample 24 of thickness measuring is placed on the top of runing rest sample support frame 23.The rotating disk 21 of runing rest is by the program control and gearing of motor driven rotary components appliance computer, and driven rotary support accurate localization is with the data of measuring samples.

Claims

1, the contactless single mirror reflection thickness measurement with laser device of band runing rest, it is characterized in that: the contactless single mirror reflection thickness measurement with laser device of above-mentioned band runing rest comprises the Computer Control Unit that has function software, laser measuring assembly, laser center locating device and runing rest, above-mentioned laser measuring assembly is by top high reflectance simple reflector (1), laser beam generation component (2), CCD digital camera (3) and bracing or strutting arrangement (4) and bottom high reflectance simple reflector (11), laser beam generation component (12), CCD digital camera (13) and bracing or strutting arrangement (14) and frame (5) are formed.

2, contactless single mirror reflection thickness measurement with laser device according to claim 1, it is characterized in that: the angle of the reflected ray of above-mentioned top high reflectance simple reflector (1) and the axis of laser beam generation component (2) is the 28-38 degree; The angle of the axis of the reflected ray of bottom high reflectance simple reflector (11) and laser beam generation component (12) is the 28-38 degree.

3, contactless single mirror reflection thickness measurement with laser device according to claim 1, it is characterized in that: above-mentioned laser center locating device (6) is installed in the appropriate location of bracing or strutting arrangement (4).

4, contactless single mirror reflection thickness measurement with laser device according to claim 1, it is characterized in that: above-mentioned runing rest is made up of rotating disk (21) rotating disc support frame (22) and sample support frame (23), and runing rest is arranged on the centre of the laser measuring assembly of upper and lower.