Optical measurement position deviation measuring device

Abstract

The invention discloses an optical measurement position deviation measuring device which comprises a measuring box, one side of the measuring box is provided with a first observation window and a third observation window, and the top of the measuring box is fixedly provided with a top plate; the calibration mechanism is used for enabling the measured object to be in a position capable of being accurately measured; the calibration mechanism comprises two first sliding blocks, the two first sliding blocks are installed on the inner wall of the measuring box in a sliding mode, and a second groove is formed in one side of each first sliding block; the two-way threaded rod can drive the two connecting rods to move oppositely through rotation of the two-way threaded rod, when an object is installed, the two L-shaped plates get close to each other, the object is placed on the tops of the L-shaped plates, the L-shaped plates can clamp the object and enable the object to be located in the middle of the measuring device, the two threaded rods are driven by the two belt wheels to rotate, and the two threaded rods are driven by the two belt wheels to rotate. And the two threaded rods rotate on the inner surfaces of the two first threaded grooves correspondingly to drive the two first sliding blocks to move up and down at the same time, and adjustment of the position of the object is further facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of optical measurement, in particular to an optical measurement position deviation measuring device. Background Art

[0002] Optical measurement position deviation measuring device usually refers to a high-precision measuring device that integrates optics, mechanics, electronics and computer image processing technology. This device uses optical principles to perform non-contact measurement of the object being measured, magnifies the object being measured through an optical magnification system, and uses a CCD camera system to collect image features, and then sends the collected image data to a computer for processing and analysis.

[0003] After searching, the patent document with publication number CN109855844A discloses an optical lens center deviation measuring device and method, which includes an optical measurement module, a mechanical adjustment module, a main control computer and an optical platform. The optical measurement module is connected to the mechanical adjustment module, and the optical measurement module and the mechanical adjustment module are both electrically connected to the main control computer. The optical measurement module includes two groups of objective lenses and an auxiliary objective lens, and the two groups of objective lenses and the auxiliary objective lens are switched.

[0004] The optical lens center deviation measuring device is focused by a mechanical adjustment module, so that the curvature radius of the measured concave or convex lens has a larger measurement range in the "confocal mode", thereby obtaining higher measurement accuracy. The two sets of switching lenses are adopted to reduce costs and simplify the operation process while ensuring measurement accuracy, thereby improving work efficiency. However, during use, due to the different objects being measured, the object position needs to be calibrated before each measurement to ensure measurement accuracy, which places a heavy burden on the staff and affects the measurement efficiency.

[0005] Therefore, in order to solve the above problems, an optical position deviation measuring device is proposed. Summary of the invention

[0006] In order to make up for the shortcomings of the prior art and solve the problem that it is troublesome to calibrate the position of an object before measurement, the present invention proposes an optical measurement position deviation measuring device.

[0007] An optical position deviation measuring device comprises a measuring box, a first observation window and a third observation window are provided on one side of the measuring box, and a top plate is fixedly installed on the top of the measuring box; Also included is a calibration mechanism for placing the measurement object in a position where it can be accurately measured; The calibration mechanism includes two first sliders, which are slidably mounted on the inner wall of the measuring box, a second groove is provided on one side of the first slider, and the inner surfaces of the two second grooves are connected with a bidirectional threaded rod that rotates together, and the outer surface of the bidirectional threaded rod is threadedly connected to two connecting blocks, a second thread groove is provided on one side of the connecting block, and the bidirectional threaded rod is threadedly mounted on the inner surface of the second thread groove, an L-shaped plate is fixedly connected to one side of the connecting block, and the other side of the connecting block is tightly attached to the inner wall of the measuring box, one end of the bidirectional threaded rod is fixedly connected to a second motor, and the second motor is fixedly mounted on one side of the first slider.

[0008] Preferably, the inner wall of the measuring box is provided with two first grooves, the first slider is slidably installed on the inner surface of the first groove, a first thread groove is provided on the top of the first slider, a threaded rod is threadedly installed on the inner surface of the first thread groove, and one end of the threaded rod passes through the top plate.

[0009] Preferably, one end of the threaded rod is fixedly connected to a pulley, and the two pulleys are driven by belts, wherein the top of one of the pulleys is fixedly connected to a first motor, the top of the first motor is fixedly connected to a support frame, and the support frame is fixedly installed on the top of the top plate.

[0010] Preferably, two second observation windows are provided on the top of the top plate, and a plurality of lamps are fixedly mounted on the bottom of the top plate.

[0011] Preferably, a third groove is provided on the bottom wall of the inner surface of the measuring box, a first electric telescopic rod is fixedly installed on the inner surface of the third groove, one end of the first electric telescopic rod is fixedly connected to a second slider, the second slider is slidably installed on the inner surface of the third groove, the top of the second slider is fixedly connected to the second electric telescopic rod, and the output end of the second electric telescopic rod is fixedly connected to a measuring frame.

[0012] Preferably, a semiconductor laser is fixedly mounted on the top of the inner surface of the measuring frame, a first mounting bracket is fixedly mounted on the inner wall of the measuring frame, a dichroic prism is fixedly mounted on the inner cavity of the first mounting bracket, an objective lens is fixedly mounted on one side of the first mounting bracket, a second mounting bracket is fixedly mounted on the other side of the first mounting bracket, and an eyepiece is fixedly mounted on the inner cavity of the second mounting bracket.

[0013] Preferably, an imaging converter is fixedly mounted on the outer surface of one side of the measuring frame, an electric wire is fixedly connected to one side of the imaging converter, and a photoelectric detector is fixedly mounted on the outer surface of the electric wire.

[0014] Preferably, a connecting shaft is rotatably installed on one side of the measuring box, one end of the connecting shaft is fixedly connected to a display screen, the electric wire passes through the connecting shaft and is fixedly connected to one side of the display screen, a second connector is fixedly installed on one side of the display screen, a third electric telescopic device is rotatably installed on the inner surface of the second connector, one end of the third electric telescopic device is rotatably installed with a first connector, and the first connector is fixedly installed on one side of the measuring box.

[0015] The present invention is beneficial in that: 1. The present invention can drive the two connecting blocks to approach or move away from each other by rotating the bidirectional threaded rod with the second motor output shaft. When installing an object, the two connecting blocks are brought close to each other and the L-shaped plate is further driven to move by the connecting block so that the two L-shaped plates are brought close to each other and the object is placed on the top of the L-shaped plate. This can enable the L-shaped plate to clamp the object and place the object in the middle of the measuring device. The first motor output shaft drives one of the pulleys to rotate through the belt transmission. The two pulleys respectively drive the two threaded rods to rotate. The two threaded rods respectively rotate on the inner surfaces of the two first thread grooves to drive the two first sliders to move up and down at the same time, further facilitating the adjustment of the position of the object.

[0016] 2. The present invention can increase the brightness of the object surface by irradiating the object with a lamp, which is convenient for reflecting the light on the object surface. The position of the measuring frame can be changed by extending and shortening the first electric telescopic rod and the second electric telescopic rod, which further facilitates the optical measuring element to adjust the position according to the different objects to be measured. The laser emitted by the semiconductor laser is refracted by the first mounting frame and the light signal of the objective lens, the eyepiece and the imaging converter is converted into an image signal, and then the image signal is transmitted to the display screen. The staff can amplify the image information, which is convenient for the staff to accurately measure the data information of the object.

[0017] 3. The present invention can adjust the angle between the display screen and the side wall of the measuring box by extending and shortening the third electric telescopic device, so that the staff can view the measurement information of the measured object displayed on the display screen at different angles when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2A schematic diagram of the sliding structure of a first sliding block according to an embodiment of the present invention; Figure 3 A schematic diagram of an L-shaped plate connection structure according to an embodiment of the present invention; Figure 4 A schematic diagram of the lamp position structure of an embodiment of the present invention; Figure 5 A schematic diagram of the sliding structure of a second sliding block according to an embodiment of the present invention; Figure 6 A schematic diagram of the internal structure of a measurement frame according to an embodiment of the present invention; Figure 7 The figure is a schematic diagram of a display screen rotation structure according to an embodiment of the present invention.

[0020] In the figure: 1, measuring box; 101, first observation window; 102, third observation window; 11, first groove; 12, first slider; 13, first thread groove; 14, second groove; 15, threaded rod; 16, pulley; 17, belt; 18, first motor; 181, support frame; 19, third groove; 191, first electric telescopic rod; 192, second slider; 193, second electric telescopic rod; 194, measuring frame; 1941, semiconductor laser; 1942, first installation 1. bracket; 1943. dichroic prism; 1944. objective lens; 1945. second mounting bracket; 1946. eyepiece; 1947. imaging converter; 1948. wires; 1949. photoelectric detector; 2. connecting block; 21. second threaded groove; 22. bidirectional threaded rod; 23. second motor; 201. L-shaped plate; 3. top plate; 31. second observation window; 32. lamp; 4. first connecting body; 41. third electric telescopic; 42. second connecting body; 43. display screen; 44. connecting shaft. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figures 1 to 7As shown, an optical measurement position deviation measuring device includes a measuring box 1, a first observation window 101 and a third observation window 102 are opened on one side of the measuring box 1, and a top plate 3 is fixedly installed on the top of the measuring box 1; it also includes a calibration mechanism for placing the measuring object in a position where it can be accurately measured; the calibration mechanism includes two first sliders 12, the two first sliders 12 are slidably installed on the inner wall of the measuring box 1, a second groove 14 is opened on one side of the first slider 12, and the inner surfaces of the two second grooves 14 are connected to a bidirectional threaded rod 22 that is rotatably connected together, the outer surface of the bidirectional threaded rod 22 is threadedly connected to two connecting blocks 2, a second thread groove 21 is opened on one side of the connecting block 2, and the bidirectional threaded rod 22 is threadedly installed on the inner surface of the second thread groove 21, an L-shaped plate 201 is fixedly connected to one side of the connecting block 2, and the other side of the connecting block 2 is close to the inner wall of the measuring box 1, one end of the bidirectional threaded rod 22 is fixedly connected to a second motor 23, and the second motor 23 is fixedly installed on one side of the first slider 12.

[0023] When measuring the position deviation of an object using an optical device, it is necessary to accurately position the measurement object.

[0024] When the present invention is in use, firstly, the distance between the two L-shaped plates 201 is adjusted according to the length of the object, and then the object is placed on the two L-shaped plates 201, and the output shaft of the second motor 23 drives the bidirectional threaded rod 22 to rotate, and the rotation of the bidirectional threaded rod 22 can simultaneously drive the two connecting blocks 2 to move, and by making one side of the two bidirectional threaded rods 22 close to the inner wall of the measuring box 1, it can be ensured that when the bidirectional threaded rod 22 rotates, the connecting block 2 will not rotate with the bidirectional threaded rod 22, thereby limiting the connecting block 2, and the two connecting blocks 2 move toward each other at the same speed. Finally, the two connecting blocks 2 respectively bring the two L-shaped plates 201 closer to each other to clamp the object and drive the object to the center, and the two first thread grooves 13 move up and down together to adjust the position of the object, so that the measuring device can detect the object more accurately.

[0025] Further, such as Figure 2 As shown, the inner wall of the measuring box 1 is provided with two first grooves 11, the first slider 12 is slidably installed on the inner surface of the first groove 11, the top of the first slider 12 is provided with a first thread groove 13, the inner surface of the first thread groove 13 is threadedly installed with a threaded rod 15, and one end of the threaded rod 15 passes through the top plate 3; One end of the threaded rod 15 is fixedly connected to a pulley 16, and the two pulleys 16 are driven by a belt 17. The top of one of the pulleys 16 is fixedly connected to a first motor 18, and the top of the first motor 18 is fixedly connected to a support frame 181, and the support frame 181 is fixedly installed on the top of the top plate 3.

[0026] When the present invention is in use, the output shaft of the first motor 18 drives one of the pulleys 16 to rotate, and the two pulleys 16 start to rotate through the transmission of the belt 17. The two pulleys 16 respectively drive the two threaded rods 15 to rotate. The two threaded rods 15 rotate on the inner surfaces of the two first threaded grooves 13 respectively, and can simultaneously drive the two first sliders 12 to slide on the inner surface of the first groove 11. The transmission through the belt 17 can ensure the consistency of the rotation of the two threaded rods 15 and further ensure the consistency of the movement of the two first sliders 12.

[0027] Further, such as Figure 4 As shown, two second observation windows 31 are opened on the top of the top plate 3, and a plurality of lamps 32 are fixedly installed on the bottom of the top plate 3.

[0028] When the present invention is in use, a plurality of lights 32 are used to illuminate the object. During inspection, the staff can observe the object and the measuring element through the second observation window 31. At the same time, the top plate 3 covering the top of the measuring box 1 can block the dust on the top of the measuring box 1, and can protect the environment of the inner cavity of the measuring box 1, thereby preventing a large amount of dust from falling into the inner cavity of the measuring box 1 and affecting the measurement accuracy.

[0029] Further, such as Figure 5 As shown, a third groove 19 is provided on the bottom wall of the inner surface of the measuring box 1, and a first electric telescopic rod 191 is fixedly installed on the inner surface of the third groove 19, one end of the first electric telescopic rod 191 is fixedly connected to a second slider 192, the second slider 192 is slidably installed on the inner surface of the third groove 19, the top of the second slider 192 is fixedly connected to a second electric telescopic rod 193, and the output end of the second electric telescopic rod 193 is fixedly connected to a measuring frame 194.

[0030] When the present invention is in use, the position of the measuring frame 194 can be adjusted by extending and shortening the first electric telescopic rod 191 and the second electric telescopic rod 193. Furthermore, when the object to be measured is inconvenient to move or when the object to be measured needs to be measured at a close distance, it can be easily accomplished by cooperating with the first electric telescopic rod 191 and the second electric telescopic rod 193.

[0031] Further, such as Figure 6 As shown, a semiconductor laser 1941 is fixedly mounted on the top of the inner surface of the measuring frame 194, a first mounting frame 1942 is fixedly mounted on the inner wall of the measuring frame 194, a beam splitter prism 1943 is fixedly mounted in the inner cavity of the first mounting frame 1942, an objective lens 1944 is fixedly mounted on one side of the first mounting frame 1942, a second mounting frame 1945 is fixedly mounted on the other side of the first mounting frame 1942, and an eyepiece 1946 is fixedly mounted in the inner cavity of the second mounting frame 1945; An imaging converter 1947 is fixedly mounted on the outer surface of one side of the measuring frame 194, a wire 1948 is fixedly connected to one side of the imaging converter 1947, and a photoelectric detector 1949 is fixedly mounted on the outer surface of the wire 1948; A connecting shaft 44 is rotatably installed on one side of the measuring box 1, and a display screen 43 is fixedly connected to one end of the connecting shaft 44. The wire 1948 passes through the connecting shaft 44 and is fixedly connected to one side of the display screen 43. A second connecting body 42 is fixedly installed on one side of the display screen 43, and a third electric telescopic body 41 is rotatably installed on the inner surface of the second connecting body 42. The first connecting body 4 is rotatably installed on one end of the third electric telescopic body 41, and the first connecting body 4 is fixedly installed on one side of the measuring box 1.

[0032] When the present invention is in use, a semiconductor laser 1941 emits a laser, which is refracted by a beam splitter prism 1943. The refracted light is irradiated onto an object through an objective lens 1944, and then reflected by the object and refracted through the beam splitter prism 1943 to an eyepiece 1946. The eyepiece 1946 and an imaging converter 1947 are adjacently arranged with a common optical axis. The output light of the eyepiece 1946 is incident on the imaging converter 1947. The imaging converter 1947 receives the optical signal, which is first transmitted through an electric wire 1948 and then converted into an image signal through a photoelectric detector 1949 and transmitted to a display screen 43. The display screen 43 further processes the image signal to finally obtain the measurement data of the object. When measuring, the staff needs to visually observe the object at different angles. When the staff observes from the front and the top, in order to facilitate the staff to observe the data displayed on the display screen 43, the angle of the display screen 43 needs to be adjusted. By extending and shortening the third electric telescopic 41, the display screen 43 and the connecting shaft 44 can be rotated along the side wall of the measuring box 1. Further, the display screen 43 can be placed in a parallel state with the side wall of the measuring box 1 or in a vertical state.

[0033] Working principle: The output shaft of the second motor 23 drives the bidirectional threaded rod 22 to rotate, so that the bidirectional threaded rod 22 can drive the two connecting blocks 2 to move closer to or away from each other. When installing an object, the two connecting blocks 2 are brought closer to each other and the L-shaped plate 201 is driven to move by the connecting block 2 so that the two L-shaped plates 201 are brought closer to each other and the object is placed on the top of the L-shaped plate 201. This can enable the L-shaped plate 201 to clamp the object and place the object in the middle of the measuring device. The output shaft of the first motor 18 drives one of the pulleys 16 to rotate through the belt 17. The two pulleys 16 respectively drive the two threaded rods 15 to rotate. The two threaded rods 15 respectively rotate on the inner surfaces of the two first thread grooves 13, which can drive the two first sliders 12 to move up and down at the same time, further facilitating the adjustment of the position of the object.

[0034] Illuminating the object with the lamp 32 can increase the brightness of the object's surface and facilitate the reflection of light on the object's surface. The position of the measuring frame 194 can be changed by extending and shortening the first electric telescopic rod 191 and the second electric telescopic rod 193, which further facilitates the optical measuring element to adjust its position according to the different objects to be measured. The laser emitted by the semiconductor laser 1941 is refracted through the first mounting frame 1942 and converted into an image signal by the objective lens 1944, the eyepiece 1946 and the imaging converter 1947. The image signal is then transmitted to the display screen 43, and the staff can amplify the image information to facilitate the staff to accurately measure the data information of the object. The angle between the display screen 43 and the side wall of the measuring box 1 can be adjusted by extending and shortening the third electric telescopic rod 41, so that the staff can view the measurement information of the measured object displayed on the display screen 43 at different angles when in use.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An optical position deviation measuring device, comprising a measuring box (1), a first observation window (101) and a third observation window (102) being provided on one side of the measuring box (1), and a top plate (3) being fixedly mounted on the top of the measuring box (1); Also included is a calibration mechanism for placing the measurement object in a position where it can be accurately measured; Features: The calibration mechanism comprises two first sliders (12), the two first sliders (12) being slidably mounted on the inner wall of the measuring box (1), a second groove (14) being provided on one side of the first slider (12), the inner surfaces of the two second grooves (14) being rotatably connected with a bidirectional threaded rod (22), the outer surfaces of the bidirectional threaded rod (22) being threadedly connected with two connecting blocks (2), a second thread groove (21) being provided on one side of the connecting block (2), the bidirectional threaded rod (22) being threadedly mounted on the inner surface of the second thread groove (21), an L-shaped plate (201) being fixedly connected to one side of the connecting block (2), the other side of the connecting block (2) being closely attached to the inner wall of the measuring box (1), one end of the bidirectional threaded rod (22) being fixedly connected with a second motor (23), the second motor (23) being fixedly mounted on one side of the first slider (12).

2. The optical position deviation measuring device according to claim 1, characterized in that: The measuring box (1) has two first grooves (11) formed on its inner wall. The first sliding block (12) is slidably mounted on the inner surface of the first groove (11). A first threaded groove (13) is formed on the top of the first sliding block (12). A threaded rod (15) is threadedly mounted on the inner surface of the first threaded groove (13). One end of the threaded rod (15) passes through the top plate (3).

3. The optical position deviation measuring device according to claim 2, characterized in that: One end of the threaded rod (15) is fixedly connected to a pulley (16), and the two pulleys (16) are driven via a belt (17), wherein the top of one of the pulleys (16) is fixedly connected to a first motor (18), and the top of the first motor (18) is fixedly connected to a support frame (181), and the support frame (181) is fixedly mounted on the top of the top plate (3).

4. The optical position deviation measuring device according to claim 3, characterized in that: Two second observation windows (31) are provided on the top of the top plate (3), and a plurality of lamps (32) are fixedly mounted on the bottom of the top plate (3).

5. The optical position deviation measuring device according to claim 4, characterized in that: The inner surface bottom wall of the measuring box (1) is provided with a third groove (19), the inner surface of the third groove (19) having a first electric telescopic rod (191) fixedly mounted thereon, one end of the first electric telescopic rod (191) being fixedly connected to a second sliding block (192), the second sliding block (192) being slidably mounted on the inner surface of the third groove (19), the top of the second sliding block (192) being fixedly connected to a second electric telescopic rod (193), and the output end of the second electric telescopic rod (193) being fixedly connected to a measuring frame (194).

6. The optical position deviation measuring device according to claim 5, characterized in that: A semiconductor laser (1941) is fixedly mounted on the top of the inner surface of the measuring frame (194); a first mounting frame (1942) is fixedly mounted on the inner wall of the measuring frame (194); a beam splitter prism (1943) is fixedly mounted in the inner cavity of the first mounting frame (1942); an objective lens (1944) is fixedly mounted on one side of the first mounting frame (1942); a second mounting frame (1945) is fixedly mounted on the other side of the first mounting frame (1942); and an eyepiece (1946) is fixedly mounted in the inner cavity of the second mounting frame (1945).

7. The optical position deviation measuring device according to claim 6, characterized in that: An imaging converter (1947) is fixedly mounted on the outer surface of one side of the measuring frame (194), an electric wire (1948) is fixedly connected to one side of the imaging converter (1947), and a photoelectric detector (1949) is fixedly mounted on the outer surface of the electric wire (1948).

8. The optical position deviation measuring device according to claim 7, characterized in that: A connecting shaft (44) is rotatably mounted on one side of the measuring box (1); one end of the connecting shaft (44) is fixedly connected to a display screen (43); the electric wire (1948) passes through the connecting shaft (44) and is fixedly connected to one side of the display screen (43); a second connecting body (42) is fixedly mounted on one side of the display screen (43); a third electric telescopic device (41) is rotatably mounted on the inner surface of the second connecting body (42); a first connecting body (4) is rotatably mounted on one end of the third electric telescopic device (41); and the first connecting body (4) is fixedly mounted on one side of the measuring box (1).

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