Optical axis calibration machine

Abstract

The utility model discloses an optical axis calibration machine which comprises an installation seat, a lens is fixedly installed at one end of the installation seat, a supporting head is fixedly connected to one end of the outer surface of the installation seat, a hinge block is hinged to one end of the supporting head, and a calibration spotlight is fixedly connected to one end of the hinge block. The calibration spotlight is located on the circumferential side face of the mounting base, a wedge block is fixedly connected to the surface of one end of the calibration spotlight, a connecting ring is fixedly connected to one side of the calibration spotlight, a tension spring is fixedly connected to one side of the connecting ring, and one end of the tension spring is fixedly connected to the outer surface of the mounting base. An external thread is arranged on the surface of one end of the mounting base, an adjusting ring is installed on the surface of the external thread in a threaded mode, a conical surface is arranged on the outer circle surface of the adjusting ring, the irradiation angle can be changed through threaded adjustment, alignment measurement is convenient, marking can be conducted through light, straight pipe comparison is achieved, accuracy and efficiency are achieved, and combined use is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of optical axis calibration, and more specifically, to an optical axis calibration machine. Background Art

[0002] After the mobile phone camera is installed, it is necessary to use an imaging system to shoot the workpiece to be inspected, and judge the quality of the product based on the image obtained. However, before shooting the workpiece to be inspected, it is often necessary to adjust the optical axis direction of the camera to be parallel to the thickness direction of the workpiece to be inspected, and measure the conversion relationship of the image coordinate system between the cameras. However, the optical axis is abstract, and existing technical means are not easy to achieve operations such as calibration and measurement of the optical axis. In addition, in the process of calibrating and measuring the optical axis of the camera, manual cooperation is generally required, the degree of automation in the measurement process is low, and the calibration and measurement of the optical axis often result in large errors due to human factors.

[0003] The utility model with authorization announcement number CN211374006U discloses an optical axis calibration machine, which relates to the technical field of measuring equipment; it includes a feeding mechanism, a manipulator mechanism, a fixture rotation mechanism and an optical axis verification mechanism, the feeding mechanisms are arranged on the opposite sides of the manipulator mechanism, and the fixture rotation mechanism is arranged between the optical axis verification mechanism and the manipulator mechanism; the fixture rotation mechanism includes a vertical support plate, a rotation drive assembly and a flip fixture, the flip fixture is rotatably installed on the top of the vertical support plate, the rotation drive assembly is installed on the side of the vertical support plate, and the rotation drive assembly is used to drive the flip fixture to rotate; the flip fixture includes a rotating fixing plate, a rotating adjustment plate, a mobile phone holder, a vacuum suction nozzle and a rotating pressure rod; the beneficial effect of the utility model is: the optical axis of the mobile phone camera is calibrated and measured by the optical axis calibration machine, the degree of automation is improved, and the influence of human factors on the optical axis calibration and measurement is reduced.

[0004] In the above-mentioned disclosed structure, a relatively complex conveying and positioning structure is used for calibration, and a virtual axis is still used for operation. There is a lack of straight tube light for marking, which is not conducive to observation and measurement, affects accuracy and efficiency, and is not convenient for adjustment and control according to the spacing. The adaptability is poor and needs to be improved. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide an optical axis calibration machine, which can perform alignment calibration by connecting the lens through a mounting seat, and the calibration spotlight is hingedly installed through the side support head to connect the tensioning spring. Combined with the wedge block and the threaded adjustment ring, the illumination angle can be changed by threaded adjustment, which is convenient for alignment measurement, and can be marked by light. It is a relatively straight tube, accurate and efficient, and is conducive to combined use.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] An optical axis calibration machine comprises a mounting seat, a lens is fixedly mounted on one end of the mounting seat, a support head is fixedly connected to one end of the outer surface of the mounting seat, a hinge block is hinged on one end of the support head, a calibration spotlight is fixedly connected to one end of the hinge block, the calibration spotlight is located on the circumferential side of the mounting seat, a wedge block is fixedly connected to one end surface of the calibration spotlight, a connecting ring is fixedly connected to one side of the calibration spotlight, a tensioning spring is fixedly connected to one side of the connecting ring, one end of the tensioning spring is fixedly connected to the outer surface of the mounting seat, an external thread is provided on the surface of one end of the mounting seat, an adjusting ring is threadedly installed on the surface of the external thread, the outer circular surface of the adjusting ring is provided with a conical surface, the conical surface is tightly connected to the inclined surface of the wedge block, and the adjusting ring is located on one side of the tensioning spring.

[0008] Furthermore, a lever is fixedly connected to one side surface of the adjusting ring, and the lever is symmetrically distributed at both ends of the adjusting ring.

[0009] Furthermore, there are three support heads and three calibration spotlights, which are evenly distributed at equal angles on the circumferential surface of the mounting base.

[0010] Furthermore, the tension spring is located between the calibration spotlight and the mounting base, and the lever is installed through the adjustment ring, which can be manually rotated and adjusted, which is conducive to pushing the calibration spotlight to flip the angle, and can be calibrated in place, which is accurate and efficient.

[0011] Furthermore, one end of the mounting seat is fixedly connected to a fixing rod, and the fixing rod is located on one side of the shifting rod.

[0012] Furthermore, one end of the fixing rod is fixedly connected to a fixing seat, and the fixing seat is located at the rear end of the mounting seat.

[0013] Furthermore, the fixing rod is fixedly connected between the fixing seat and the mounting seat. The fixing seat is connected via the fixing rod, and can be assembled and installed, which is conducive to the alignment and connection of the mounting seat, avoids interference, and is convenient and stable.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] (1) This solution connects the lens through the mounting base, which can be used for alignment calibration, and the calibration spotlight is hingedly installed on the side support head to connect the tension spring. Combined with the wedge block and the threaded adjustment ring, the irradiation angle can be changed by thread adjustment, which is convenient for alignment measurement and can be marked by light. It is relatively straight, accurate and efficient, and is conducive to combined use.

[0016] (2) The lever can be installed through the adjustment ring and can be manually rotated to adjust, which is conducive to pushing and calibrating the flip angle of the spotlight. It can be calibrated accurately and efficiently.

[0017] (3) The fixing base can be connected by a fixing rod and can be installed in combination, which is conducive to the alignment and connection of the mounting base, avoiding interference and facilitating stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a partial schematic diagram of the connection of the calibration spotlight of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the adjustment ring of the utility model;

[0021] Figure 4 It is a three-dimensional structural diagram of the adjustment ring of the utility model.

[0022] Description of the numbers in the figure:

[0023] 1 mounting seat, 11 lens, 12 supporting head, 13 hinge block, 14 calibration spotlight, 15 wedge block, 16 connecting ring, 17 tension spring, 2 external thread, 21 adjusting ring, 22 conical surface, 23 lever, 24 fixing rod, 25 fixing seat. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 , Figure 3 and Figure 4, an optical axis calibration machine comprises a mounting seat 1, a lens 11 is fixedly mounted on one end of the mounting seat 1, a support head 12 is fixedly connected to one end of the outer surface of the mounting seat 1, a hinge block 13 is hingedly connected to one end of the support head 12, a calibration spotlight 14 is fixedly connected to one end of the hinge block 13, the calibration spotlight 14 is located on the circumferential side of the mounting seat 1, a wedge block 15 is fixedly connected to one end surface of the calibration spotlight 14, a connecting ring 16 is fixedly connected to one side of the calibration spotlight 14, a tensioning spring 17 is fixedly connected to one side of the connecting ring 16, one end of the tensioning spring 17 is fixedly connected to the outer surface of the mounting seat 1, an external thread 2 is provided on one end surface of the mounting seat 1, an adjusting ring 21 is threadedly installed on the surface of the external thread 2, the outer cylindrical surface of the adjusting ring 21 is provided with a conical surface 22, the conical surface 22 is tightly connected to the inclined surface of the wedge block 15, the adjusting ring 21 is located on one side of the tensioning spring 17, so that When in use, the mounting base 1 can be installed on the device, and the lens 11 can be aligned to the position of the object, and then the adjusting ring 21 can be rotated for thread control, and the position on the surface of the mounting base 1 can be moved, and the wedge block 15 can be tightened in combination with the conical surface 22, and the calibration spotlight 14 can be tightened by the tension spring 17, and the calibration spotlight 14 can be pushed to hinge around the support head 12 to flip the angle, thereby changing the angular position of the lamp head and adjusting the angle of the light emitted by the spotlight. The three light rays can be parallel to the square of the lens 11, so that three points determine a circle, which can represent the axis of the optical axis, so as to perform alignment calibration, or the three light rays can be tilted inward and converged to a point at different distances to form a focus on the optical axis, so as to align the focus to the position of the object, so as to perform precise alignment and calibration, which is convenient to adjust and use, accurate and efficient, and has a simple structure and is easy to install and operate.

[0026] See also Figure 2 and Figure 3 A lever 23 is fixedly connected to the surface of one side of the adjustment ring 21, and the levers 23 are symmetrically distributed at the two ends of the adjustment ring 21. There are three support heads 12 and calibration spotlights 14, and they are evenly distributed at equal angles on the circumferential surface of the mounting base 1. The tensioning spring 17 is located between the calibration spotlight 14 and the mounting base 1. The lever is installed through the adjustment ring and can be manually rotated for adjustment, which is conducive to pushing the calibration spotlight to flip the angle, and can be calibrated in place, which is accurate and efficient.

[0027] See also Figure 1 and Figure 2 One end of the mounting seat 1 is fixedly connected to a fixing rod 24, and the fixing rod 24 is located on one side of the lever 23. One end of the fixing rod 24 is fixedly connected to a fixing seat 25, and the fixing seat 25 is located at the rear end of the mounting seat 1. The fixing rod 24 is fixedly connected between the fixing seat 25 and the mounting seat 1. The fixing seat is connected by the fixing rod, and can be assembled and installed, which is conducive to the alignment and connection of the mounting seat, avoiding interference, and is convenient and stable.

[0028] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. An optical axis calibration machine, comprising a mounting seat (1), a lens (11) being fixedly mounted on one end of the mounting seat (1), characterized in that: One end of the outer surface of the mounting seat (1) is fixedly connected to a support head (12), one end of the support head (12) is hinged to a hinge block (13), one end of the hinge block (13) is fixedly connected to a calibration spotlight (14), the calibration spotlight (14) is located on the circumferential side of the mounting seat (1), one end surface of the calibration spotlight (14) is fixedly connected to a wedge block (15), one side of the calibration spotlight (14) is fixedly connected to a connecting ring (16), one side of the connecting ring (16) A tension spring (17) is fixedly connected to the side, one end of the tension spring (17) is fixedly connected to the outer surface of the mounting seat (1), one end surface of the mounting seat (1) is provided with an external thread (2), an adjustment ring (21) is threadedly mounted on the surface of the external thread (2), the outer circular surface of the adjustment ring (21) is provided with a conical surface (22), the conical surface (22) is tightly connected to the inclined surface of the wedge block (15), and the adjustment ring (21) is located on one side of the tension spring (17).

2. The optical axis calibration machine according to claim 1, characterized in that: A shifting rod (23) is fixedly connected to one side surface of the adjusting ring (21), and the shifting rod (23) is symmetrically distributed at two end positions of the adjusting ring (21).

3. The optical axis calibration machine according to claim 1, characterized in that: There are three support heads (12) and three calibration spotlights (14), which are evenly distributed at equal angles on the circumferential surface of the mounting seat (1).

4. The optical axis calibration machine according to claim 1, characterized in that: The tension spring (17) is located between the calibration spotlight (14) and the mounting base (1).

5. The optical axis calibration machine according to claim 1, characterized in that: One end of the mounting seat (1) is fixedly connected to a fixing rod (24), and the fixing rod (24) is located on one side of the shifting rod (23).

6. The optical axis calibration machine according to claim 5, characterized in that: One end of the fixing rod (24) is fixedly connected to a fixing seat (25), and the fixing seat (25) is located at the rear end of the mounting seat (1).

7. The optical axis calibration machine according to claim 5, characterized in that: The fixing rod (24) is fixedly connected between the fixing seat (25) and the mounting seat (1).

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