Device for detecting parallelism of optical axis and mechanical axis of borescope

Abstract

The utility model belongs to the technical field of optical detection equipment, and particularly relates to a device for detecting parallelism of an optical axis and a mechanical axis of a borescope, which comprises a working cabinet, a guide rail, a photoelectric collimator and a plurality of standard cylinders, a working table is arranged at the top of the working cabinet, and five through grooves are correspondingly formed in the working table and the top surface of the working cabinet; a vertical plate is fixed above the working table, an upper cavity and a lower cavity are formed in the working cabinet and separated through a partition plate, five clamping mechanisms are arranged in the upper cavity and used for clamping a standard cylinder and driving the standard cylinder to rotate, the lower cavity is used for containing the standard cylinder, the guide rail is arranged on the vertical plate, and the vertical plate is arranged on the guide rail. The photoelectric collimator is slidably connected to the guide rail, and the standard cylinder is used for installing a borescope. The device not only can realize the quantitative detection of the parallelism of the optical axis and the mechanical axis of each sighting telescope, but also can realize the detection of sighting telescopes with various aperture specifications by using one instrument, and is high in detection efficiency and wide in application range.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical detection equipment, and in particular relates to a detection device for the parallelism of an optical axis of a calibration target mirror and a mechanical axis. Background Art

[0002] During the use of weapons and equipment, various factors may affect the relative position of the gun and radar photoelectricity, which will affect the effective operation of the weapons and equipment. Therefore, weapons and equipment need to be calibrated regularly. The calibration scope is an optical instrument used to calibrate the axis error of the barrel. The mechanical axis of its outer circle represents the axis of the barrel. Since the mechanical axis is invisible, it is usually marked by the cross scale of the optical axis (optical axis). Therefore, it is particularly important to verify the consistency of the mechanical axis and the optical axis of the calibration scope.

[0003] At present, target scopes have various calibers such as 100mm, 105mm, 120mm, 122mm, 125mm, etc. When the existing detection device for the consistency of the optical axis and the mechanical axis of the target scope is used, it can generally only detect one specification of the target scope at a time, and the detection efficiency is low.

[0004] Therefore, there is an urgent need for a device for detecting the parallelism of the optical axis and the mechanical axis of the calibration target mirror to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned defects existing in the prior art, the utility model provides a device for detecting the parallelism of the optical axis of a calibration target mirror and a mechanical axis, comprising a work cabinet, a guide rail, a photoelectric collimator and a plurality of standard cylinders, a work table is arranged on the top of the work cabinet, and five vertically penetrating through grooves are correspondingly arranged on the work table and the top surface of the work cabinet, a vertical plate is fixed above the work table, and the vertical plate is located at the rear side of the work table, the interior of the work cabinet is divided into an upper chamber and a lower chamber, and the two chambers are separated by a partition, five clamping mechanisms are arranged in the upper chamber, and the five clamping mechanisms correspond to the five through grooves respectively, the clamping mechanisms are used to clamp the standard cylinders and drive the standard cylinders to rotate, and the lower chamber is used to store the standard cylinders. The guide rail is arranged on the vertical plate, and the photoelectric collimator is slidably connected to the guide rail. When the photoelectric collimator moves on the guide rail, it can correspond to the standard cylinder in the clamping mechanism below; the standard cylinder is used to load the calibration target mirror, and the standard cylinder has various specifications. The outer diameter of the commonly used standard cylinder is uniformly 150 mm, and the inner diameters are: 130, 125, 122, 120, 105, 100, and 85 mm respectively; the outer diameter of the standard cylinder with an inner diameter of 155 mm is 200 mm; the outer diameter of the standard cylinder with an inner diameter of 57, 37 and 30 mm is 80 mm; the outer diameter of the standard cylinder with an inner diameter of 12.6, 7.6, and 5.8 mm is 60 mm; a CCD detector is installed in the calibration target mirror.

[0006] Optionally, the clamping mechanism includes a clamping assembly and a servo motor, the clamping assembly includes a fixed cylinder and a rotating cylinder, the fixed cylinder is fixedly arranged in the upper chamber of the work cabinet, the rotating cylinder is rotatably connected to the inside of the fixed cylinder, the lower end of the rotating cylinder extends downward from the fixed cylinder, electric push rods are arranged on the left and right sides of the inside of the rotating cylinder, and a clamping plate is fixed to the free end of each electric push rod. The servo motor is arranged on the rear side of the clamping assembly, and the output shaft of the servo motor is transmission-connected to the lower end of the rotating cylinder through a transmission belt.

[0007] Optionally, a cabinet door is provided at the front end of the work cabinet, and a handle is provided on the cabinet door.

[0008] Optionally, supporting feet are provided below the work cabinet.

[0009] Optionally, a plurality of fixing frames are arranged at the bottom of the lower chamber of the working cabinet.

[0010] Specifically, each fixing frame includes two supporting brackets arranged opposite to each other on the left and right sides, and the opposite surfaces of the two supporting brackets are set to be arc-shaped, which are used to place the standard cylinder to prevent the standard cylinder from rolling at will.

[0011] In addition, the work cabinet is also provided with a computer, which includes a host, a display screen and a keyboard connected to the host, a controller is provided in the host, and the CCD detector is connected to the controller in the host through a wire.

[0012] The utility model also includes other components that can enable a device for detecting the parallelism of the optical axis and the mechanical axis of a calibration target mirror to be used normally, which are all conventional technical means in the art. In addition, the devices or components not limited in the utility model all adopt conventional technical means in the art, such as CCD detectors, computers, electric push rods and servo motors.

[0013] The working principle of the utility model is to first select a suitable standard cylinder according to the specifications of the target mirror to be detected, then put the target mirror into the standard cylinder, and then put the standard cylinder into the rotating cylinder of the clamping assembly, control the electric push rod to stretch the free end to clamp the standard cylinder, and after the standard cylinder is fixed, install the CCD detector into the target mirror, adjust the position of the photoelectric collimator to make it correspond to the target mirror in the standard cylinder below, and emit parallel light after the photoelectric collimator is powered on, the light fills the aperture of the target mirror objective lens, and can collect star point images at the CCD detector end, the CCD detector built into the target mirror will transmit the star point images of the photoelectric collimator to the computer controller for data processing, start the servo motor, drive the rotating cylinder to rotate, and then drive the standard cylinder and the target mirror inside it to rotate, and at the same time, the star point images on the CCD detector inside the target mirror will also rotate with the The target mirror rotates one circle, and the computer controller calculates the coordinates of the star point image in each frame according to the collected rotation video of the star point image, and finally obtains the star point trajectory. When the target mirror is rotated, the CCD detector is used to record the video of the star point image, and the computer controller is used to collect it to obtain the corresponding rotation video of the star point image. The center of mass coordinates of the star point image are extracted in each frame to obtain the position distribution of each star point image, that is, the star point trajectory. The star point image trajectory is fitted, and an electronic cross-reticle plate is generated at the coordinates of the center of the fitting circle. The star point image is adjusted to the center of the electronic cross-reticle plate to complete the system adjustment. The target mirror is rotated one circle again, and the radius of the fitting circle is read. The maximum value of the inconsistent angle deviation between the optical axis and the mechanical axis is calculated, which is the angle between the optical axis and the mechanical axis of the target mirror, also called the parallelism of the optical axis and the mechanical axis.

[0014] The beneficial effects of the utility model are that it can not only realize the quantitative detection of the parallelism of the mechanical axes of the optical axes of each sight, but also can use one instrument to realize the detection of sights of various caliber specifications, with high detection efficiency and wide application range; it utilizes display screen observation to replace previous human eye observation, and uses computer processing of image data to replace previous manual calculation, so that the operator's work is simple and comfortable, and the work efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 This is a schematic diagram of the internal structure of the work cabinet of the utility model after the cabinet door is removed.

[0018] Figure 3 It is a structural schematic diagram of the clamping mechanism of the utility model.

[0019] Figure 4 It is a top view of the clamping mechanism of the present utility model.

[0020] Figure 5 It is a schematic diagram of the calibration target scope when it is installed in the standard barrel in the embodiment.

[0021] In the figure: 1. work cabinet, 2. guide rail, 3. photoelectric collimator, 4. standard cylinder, 5. work table, 6. vertical plate, 7. cabinet door, 8. upper chamber, 9. lower chamber, 10. clamping mechanism, 11. fixed cylinder, 12. rotating cylinder, 13. electric push rod, 14. clamping plate, 15. servo motor, 16. transmission belt, 17. fixing frame, 18. calibration mirror, 19. CCD detector, 20. host, 21. display screen, 22. keyboard, 23. wire. DETAILED DESCRIPTION

[0022] The present invention is described in detail below in conjunction with the drawings and specific embodiments in the embodiments of the present invention. The description here is only used to explain the present invention, but not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent substitutions, improvements, etc., should be included in the protection scope of the present invention.

[0023] Example

[0024] like Figure 1-5As shown, the embodiment of the utility model provides a device for detecting the parallelism of the optical axis of a calibration mirror and a mechanical axis, comprising a work cabinet 1, a guide rail 2, a photoelectric collimator 3 and a plurality of standard cylinders 4, a work table 5 is arranged on the top of the work cabinet 1, and the work table 5 and the top surface of the work cabinet 1 are provided with five through grooves extending up and down, a vertical plate 6 is fixed above the work table 5, and the vertical plate 6 is located at the rear side of the work table 5, a cabinet door 7 is arranged at the front end of the work cabinet 1, and a handle is arranged on the cabinet door 7, and a support foot is arranged at the bottom of the work cabinet 1; the interior of the work cabinet 1 is divided into an upper chamber 8 and a lower chamber 9, and the two chambers are connected by The upper chamber 8 is separated by partitions, and five clamping mechanisms 10 are arranged in the upper chamber 8, and the five clamping mechanisms 10 correspond to the five through slots one by one. The clamping mechanism 10 is used to clamp the standard cylinder 4 and drive the standard cylinder 4 to rotate. The clamping mechanism 10 includes a clamping assembly and a servo motor 15. The clamping assembly includes a fixed cylinder 11 and a rotating cylinder 12. The fixed cylinder 11 is fixedly arranged in the upper chamber 8 of the working cabinet 1. The rotating cylinder 12 is rotatably connected to the inside of the fixed cylinder 11. The lower end of the rotating cylinder 12 extends downward from the fixed cylinder 11. Electric push rods 13 are arranged on both sides of the inside of the rotating cylinder 12. The free end of each electric push rod 13 A clamping plate 14 is fixed to each of the work cabinets 1. A servo motor 15 is arranged at the rear side of the clamping assembly. The output shaft of the servo motor 15 is connected to the lower end of the rotating drum 12 through a transmission belt 16. The lower chamber 9 of the work cabinet 1 is used to store the standard drum 4. A plurality of fixing frames 17 are arranged at the bottom of the lower chamber 9. Each fixing frame 17 includes two supporting brackets arranged opposite to each other on the left and right. The opposite surfaces of the two supporting brackets are arranged in an arc shape to place the standard drum 4 to prevent the standard drum 4 from rolling at will. The guide rail 2 is arranged on the vertical plate 6. The photoelectric collimator 3 is slidably connected to the guide rail 2. During the movement of the photoelectric collimator 3 on the guide rail 2 , which can correspond to the standard cylinder 4 in the clamping mechanism 10 below; the standard cylinder 4 is used to load the calibration target mirror 18, and the standard cylinder 4 has various specifications. The outer diameter of the commonly used standard cylinder 4 is uniformly 150 mm, and the inner diameters are: 130, 125, 122, 120, 105, 100, and 85 mm respectively; the standard cylinder 4 with an inner diameter of 155 mm has an outer diameter of 200 mm; the standard cylinder 4 with an inner diameter of 57, 37 and 30 mm has an outer diameter of 80 mm; the standard cylinder 4 with an inner diameter of 12.6, 7.6, and 5.8 mm has an outer diameter of 60 mm; a CCD detector 19 is installed in the calibration target mirror 18.

[0025] In addition, the work cabinet 1 is also provided with a computer, which includes a host 20, and a display screen 21 and a keyboard 22 connected to the host 20 for communication. The host 20 is provided with a controller, and the CCD detector 19 is connected to the controller in the host 20 for communication via a wire 23.

[0026] The working principle of the utility model is to first select a suitable standard cylinder 4 according to the specifications of the target mirror 18 to be detected, then put the target mirror 18 into the standard cylinder 4, and then put the standard cylinder 4 into the rotating cylinder 12 of the clamping assembly, control the electric push rod 13 to stretch the free end to clamp the standard cylinder 4, and after the standard cylinder 4 is fixed, install the CCD detector 19 into the target mirror 18, adjust the position of the photoelectric collimator 3 to make it correspond to the target mirror 18 in the standard cylinder 4 below, and the photoelectric collimator 3 emits parallel light after being energized, and the light fills the aperture of the objective lens of the target mirror 18, and can collect star point images at the end of the CCD detector 19. The built-in CCD detector 19 of the target mirror 18 will transmit the star point images of the photoelectric collimator 3 to the computer controller for data processing, start the servo motor 15, drive the rotating cylinder 12 to rotate, and then drive the standard cylinder 4 and the target mirror 18 inside it to rotate, and at the same time, the inside of the target mirror 18 The star point images on the CCD detector 19 will also rotate. After the calibration mirror 18 rotates one circle, the computer controller calculates the coordinates of the star point images in each frame of the image based on the collected rotation video of the star point images, and finally obtains the star point trajectory. When the calibration mirror 18 is rotated, the CCD detector 19 is used to record the video of the star point images at the same time, and the computer controller is used to collect the video of the corresponding star point images, and the center of mass coordinates of the star point images are extracted in each frame to obtain the position distribution of each star point image, that is, the star point trajectory. The star point image trajectory is fitted, and an electronic cross-reticle plate is generated at the coordinates of the center of the fitting circle. The star point image is adjusted to the center of the electronic cross-reticle plate to complete the system adjustment. The calibration mirror 18 is rotated one circle again, the radius of the fitting circle is read, and the maximum value of the inconsistent angle deviation between the optical axis and the mechanical axis is calculated, which is the angle value between the optical axis and the mechanical axis of the calibration mirror 18, also known as the parallelism of the optical axis and the mechanical axis.

[0027] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A device for detecting the parallelism between the optical axis and the mechanical axis of a calibration mirror, comprising a work cabinet, a guide rail, a photoelectric collimator and a plurality of standard tubes, characterized in that: A work table is provided on the top of the work cabinet, and five vertical through grooves are provided on the work table and the top surface of the work cabinet, and a vertical plate is fixed above the work table, and the vertical plate is located on the rear side of the work table. The interior of the work cabinet is divided into an upper chamber and a lower chamber, and the two chambers are separated by a partition. Five clamping mechanisms are provided in the upper chamber, and the five clamping mechanisms correspond to the five through grooves respectively. The clamping mechanisms are used to clamp the standard cylinder and drive the standard cylinder to rotate. The lower chamber is used to store the standard cylinder. The guide rail is provided on the vertical plate, and the photoelectric parallel light tube is slidably connected to the guide rail. The standard cylinder is used to load the calibration target mirror.

2. The device for detecting the parallelism between the optical axis and the mechanical axis of the calibration mirror according to claim 1, characterized in that: The clamping mechanism includes a clamping assembly and a servo motor. The clamping assembly includes a fixed cylinder and a rotating cylinder. The fixed cylinder is fixedly arranged in the upper chamber of the working cabinet. The rotating cylinder is rotatably connected to the inside of the fixed cylinder. The lower end of the rotating cylinder extends downward from the fixed cylinder. Electric push rods are arranged on the left and right sides of the inside of the rotating cylinder. A clamping plate is fixed to the free end of each electric push rod. The servo motor is arranged on the rear side of the clamping assembly. The output shaft of the servo motor is connected to the lower end of the rotating cylinder through a transmission belt.

3. The device for detecting the parallelism between the optical axis and the mechanical axis of the calibration mirror according to claim 2, characterized in that: The front end of the work cabinet is provided with a cabinet door, and the cabinet door is provided with a handle.

4. The device for detecting the parallelism between the optical axis and the mechanical axis of the calibration mirror according to claim 3, characterized in that: Support legs are arranged under the work cabinet.

5. The device for detecting the parallelism between the optical axis and the mechanical axis of the calibration mirror according to claim 4, characterized in that: A plurality of fixing frames are arranged at the bottom of the lower chamber of the working cabinet.

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