CN2653438Y

CN2653438Y - Detector for centre and inclined angle

Info

Publication number: CN2653438Y
Application number: CN 03279427
Authority: CN
Inventors: 周义惟
Original assignee: Changzhou Kaisen Optics and Electronic Co Ltd
Current assignee: Changzhou Kaisen Optics and Electronic Co Ltd
Priority date: 2003-09-18
Filing date: 2003-09-18
Publication date: 2004-11-03
Anticipated expiration: 2013-09-18

Abstract

The utility model relates to a detector of center and obliquity, comprising a vertical pole(1), a support(8), a shell(4) and a detecting component; the shell is fixed on the support(8); the detecting component is consisted of a CMOS camera shot(2) arranged in the shell(4), a laser diode(3), a fixed seat(11), a dispersion prism(5), an imaging board(7), a breadboard(10) with detecting circuit and a camera shot transverter(6) arranged at the bottom of the shell(4); the laser diode(3) is fixedly arranged on the fixed seat(11) and is connected with the breadboard(10); the dispersion prism(5) is arranged below the laser diode(3), the imaging board(7) is arranged in front of the dispersion prism(5); and the CMOS camera shot(2) is positioned above the imaging board(7). The utility model is short in debug time, high in efficiency and precise in positioning workpieces; therefore, the utility model is applicable in the debugging of photofabrication, mechanicals and moulding process and other workpieces in the field of precise position of center and plane obliquity.

Description

Center, inclination angle detection instrument

Technical field

The utility model relates to a kind of center, inclination angle detection instrument, is applied to the pinpoint field of central point and inclination angle, plane in photoelectricity, machinery, Mould Machining and the debugging of other workpiece processing.

Background technology

In the photoelectricity industry, in the assembling process to the object lens of laser head and two-dimensional adjustment device, need the inclination angle of objective lens and framework and focus center X-axis, Y-axis and the residing position of Z axle on laser head of object lens, and accurate location.Adopt determined object lens center and inclination angle to the electrical property of laser head more in the prior art, and debug time is long, and work efficiency is low, and setting accuracy is low.Chinese patent CN2223479Y discloses the photoelectric oblique angle detector, by the test section, counting display part and housing are formed, the test section is made up of reflecting plate, photoelectric sensor and power supply, the counting display part is made up of pre-amplification circuit, adjustment circuit and voltage table, this photoelectric oblique angle detector can only detect the inclination angle, can not the inspection center present position, and the structure more complicated.

Summary of the invention

It is short that the purpose of this utility model provides a kind of debug time, and the work efficiency height is located accurate center, inclination angle detection instrument.

The technical scheme that realizes above-mentioned purpose is: a kind of center, inclination angle detection instrument, comprise column, support, housing and test section, housing is fixed on the support, the test section is made up of the CMOS camera lens that is positioned at housing, laser diode, holder, Amici prism, imaging plate, the camera lens converter that has the wiring board of testing circuit and be installed in housing bottom, laser diode is installed on the holder, and be electrically connected with wiring board, Amici prism is positioned at the below of laser diode, imaging plate is positioned at the place ahead of Amici prism, and the CMOS camera lens is positioned at the top of imaging plate.

After adopting technique scheme, utilize the collimation property of laser to detect the inclination angle, beat on the measured workpiece surface with the beam of laser bundle, and at the parallel eyeglass of measured workpiece surface placement, workpiece is on level during run-off the straight, the light of laser beam reflected back detecting device will change along with the inclination of workpiece, produces the displacement of X, Y when imaging, with the tilt variation that just can detect workpiece that moves of photoelectricity on the screen; When the center is detected, laser diode is housed below object lens, make laser diode luminous, this moment, objective lens surface just had a luminous point, object lens are when the X-Y of level motion or displacement, the also same thereupon moved further of luminous point on surface, with the optical loupes group its luminous point is amplified, and adopt the CMOS camera lens to catch this luminous point to make it to be shown on the screen of monitor, when object lens move, the also same moved further of luminous point on the screen, thus realization is to the position probing of object lens, owing to used the optical amplification system of high power, when object lens have some displacements to take place, the displacement that its relative luminous point produces has been exaggerated 10～20 times, thus can control its displacement very intuitively, or accurately with its centralized positioning.Because housing bottom has been adorned the camera lens converter, when detecting the inclination angle, camera lens is turned round incident angle, when wanting inspection center's point, forward camera lens to center, just can finish simultaneously by the camera lens converter like this inclination angle and the center of object lens are detected in real time, and debug time is short, the work efficiency height is adjusted simultaneously owing to realized inclination angle and two location of central point, can reach workpiece is accurately located.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 looks synoptic diagram for the left side of Fig. 1;

Fig. 3 is the I portion enlarged drawing of Fig. 2;

Fundamental diagram when Fig. 4 detects the inclination angle for the utility model;

Fundamental diagram when Fig. 5 is the utility model inspection center;

Fig. 6 is the testing circuit schematic diagram on the wiring board of the present utility model.

Embodiment

Below in conjunction with drawings and Examples the utility model is described in further detail.

Shown in Fig. 1～3, a kind of center, the inclination angle detection instrument, comprise column 1, support 8, housing 4 and test section, housing 4 is fixed on the support 8, the test section is by the CMOS camera lens 2 that is positioned at housing 4, laser diode 3, holder 11, Amici prism 5, imaging plate 7, camera lens converter 6 compositions that have the wiring board 10 of testing circuit and be installed in housing 4 bottoms, laser diode 3 is installed on the holder 11, and be electrically connected with wiring board 10, Amici prism 5 is positioned at the below of laser diode 3, imaging plate 7 is positioned at the place ahead of Amici prism 5, and CMOS camera lens 2 is positioned at the top of imaging plate 7.

As shown in Figure 1, support 8 is installed on the column 1 movably, and support 8 is provided with height adjustment mechanism 9.Adopt height adjustment mechanism 9 can adjust the height of detector very easily.

Fig. 6 is the testing circuit schematic diagram on the wiring board 10, can indicate the center of object lens by the light emitting diode D11 on this testing circuit, can indicate the inclination angle of object lens by the light emitting diode D12 on this testing circuit.Above-mentioned testing circuit can change according to the design needs, here only for a kind of embodiment.

Principle of work of the present utility model (divide inclination angle detection, the center is detected two parts and discussed) is as follows

Principle of work when a. detecting the inclination angle (this instrument adopts the autocollimation principle of laser when detecting the inclination angle)

As shown in Figure 4, when instrument placed inclination angle detection, the inclination angle detection pilot lamp was bright, and laser diode 3 is luminous, and laser beam is got on the paralleloscope 12 that surface of the work places through Amici prism 5, and laser beam is returned along original light path when workpiece maintenance level; When the workpiece occurred level tilted, the paralleloscope 12 of surface of the work also produced by 12 beam reflected of paralleloscope of surface of the work and laser diode 3 emitted laser bundle shapes α in an angle thereupon.α is directly proportional with the surface tilt amount of workpiece, and the luminous point of paralleloscope 12 reflected backs also just occurs in the X on the imaging plate 7, the physical displacement of Y thereupon during the workpiece run-off the straight.We reflect the tilt quantity of the object lens 13 of workpiece intuitively by the luminous point on the imaging plate is caught, thus the effectively horizontal tilt of the object lens 13 of monitoring workpiece.

B. (this instrument adopts the principle of work of similar angular instrument to the principle of work of center detection when detecting the center of workpiece object lens, the principle of work when only producing with laser head is below set forth.)

As shown in Figure 5, when the instrument centering detected, it is bright that pilot lamp is detected at the center.Camera lens converter 6 is transformed into one group of magnifier between Amici prism 5 and the paralleloscope 12 simultaneously, makes the LD (semiconductor laser diode) of workpiece self luminous by circuit conversion control.Because the position of the LD of workpiece is changeless, so when the object lens 13 of workpiece at X, when the Y plane is subjected to displacement, LD institute emitted laser bundle can produce on the surface of workpiece object lens 13 during through workpiece object lens 13 one with LD self the emitted light beams shape light beam of β in an angle; By the luminous point that Amici prism 5 reflexes to imaging plate 7 and formation is directly proportional with the horizontal shift of the object lens 13 of workpiece on imaging plate 7.By the optical loupes in the camera lens converter 6 luminous point on the imaging plate 7 is caught, so and its physical displacement amount is amplified 10～20 times intuitively object lens 13 is carried out detection and location in the displacement on X, Y plane, realize centralized positioning function to the workpiece object lens.

Claims

1, a kind of center, the inclination angle detection instrument, comprise column (1), support (8), housing (4) and test section, housing (4) is fixed on the support (8), it is characterized in that: the test section is by the CMOS camera lens (2) that is positioned at housing (4), laser diode (3), holder (11), Amici prism (5), imaging plate (7), camera lens converter (6) composition that has the wiring board (10) of testing circuit and be installed in housing (4) bottom, laser diode (3) is installed on the holder (11), and be electrically connected with wiring board (10), Amici prism (5) is positioned at the below of laser diode (3), imaging plate (7) is positioned at the place ahead of Amici prism (5), and CMOS camera lens (2) is positioned at the top of imaging plate (7).

2, center according to claim 1, inclination angle detection instrument is characterized in that: support (8) is installed on the column (1) movably, and support (8) is provided with height adjustment mechanism (9).