Plane parallelism adjusting tool

Abstract

The utility model relates to the technical field of optical detection, in particular to a plane parallelism adjusting tool which comprises an image acquisition structure, a light source reticle and a light path system, and the image acquisition structure comprises a bottom plate, a leveling gasket, a spring, a camera support, an industrial camera, a C-shaped interface ring and a body sleeve. A piece of optical glass is placed on a parallelism tool body, and when the other piece of glass is not parallel to reference glass on the body, the included angle between the glass and the reference glass is adjusted, so that the images of the glass and the reference glass are overlapped, that is, when two cross cursors are completely overlapped, two corresponding reverse surfaces are parallel, and therefore, when a large-area-array camera and a line scanning camera are assembled, the two cross cursors can be aligned. The photosensitive chip needs to be perpendicular to the central optical axis of the lens, and when the tool provided by the technical scheme is adopted, only the parallelism of the lens mounting surface and the photosensitive chip needs to be adjusted, so that the installation and adjustment steps of the industrial camera are greatly simplified, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical detection, in particular to a tool for adjusting the parallelism of planes. Background Art

[0002] In the fields of optics and mechanical automation, it is often necessary to adjust the parallelism between two or more planes. The parallelism adjustment device is mainly used to detect and adjust the parallelism error between two or more planes.

[0003] In the prior art, the following methods and devices are mostly used to adjust the parallelism: 1. Visual inspection method, observing the gap between two planes by naked eyes or magnifying glasses to judge their parallelism, which is suitable for occasions with low precision requirements; 2. Angle measurement method, using an angle ruler or protractor to measure the included angle between two planes, and calculating the parallelism error, which is suitable for occasions with medium precision requirements; 3. Laser ranging method, the transmitter emits laser, the laser irradiates on the measured plane and reflects back, the receiver receives the reflected laser, and calculates the parallelism error by measuring the change in the laser path, which is suitable for occasions with high precision requirements; 4. Coordinate measuring machine (CMM), placing the measured object on the CMM, the measuring head of the CMM moves along the measured plane, measuring multiple points on the plane, calculating the distances between these points, and obtaining the parallelism error, which is suitable for measuring high-precision and complex-shaped objects; 5. Parallelism adjustment device, using tools such as adjustment pads and adjustment screws, and by adjusting these tools, changing the height or inclination of the measured plane to make the two planes reach a parallel state, which is suitable for on-site adjustment or maintenance occasions.

[0004] In summary, for the parallelism adjustment devices in the prior art, auxiliary tools such as angle measurement and distance measurement are required during adjustment, and the adjustment process is complex and prone to introducing tool errors, resulting in an unsatisfactory adjustment effect. Content of the Utility Model

[0005] The purpose of the utility model is to provide a tool for adjusting the parallelism of planes, so as to solve the problem that for the parallelism adjustment devices in the prior art, auxiliary tools such as angle measurement and distance measurement are required during adjustment, and the adjustment process is complex and prone to introducing tool errors, resulting in an unsatisfactory adjustment effect.

[0006] To achieve the above object, the present utility model provides a planar parallelism adjustment tool. The planar parallelism adjustment tool includes an image acquisition structure, a light source reticle, and an optical path system. The image acquisition structure includes a bottom plate, a leveling shim, a spring, a camera bracket, an industrial camera, a C-type interface ring, and a body sleeve. The bottom plate is installed at the bottom of the body sleeve through a first screw, and each first screw is externally provided with the leveling shim. The camera bracket is installed above the bottom plate through a second screw and is located inside the body sleeve. The second screw is externally provided with the spring. The industrial camera is installed on the camera bracket, and the C-type interface ring is provided at the top end of the industrial camera. The optical path system is installed at the top end of the body sleeve through the C-type interface ring, and the light source reticle is installed on the side wall of the body sleeve. One end of the light source reticle located inside the body sleeve is connected to the optical path system.

[0007] Among them, the optical path system includes an optical lens, a C-interface clamping ring, a connecting ring, a beam splitter, a lens adapter, and a first locking screw. The optical lens is installed on the connecting ring through the C-interface clamping ring. The connecting ring is installed at the top end of the lens adapter through the first locking screw. The beam splitter is arranged inside the lens adapter. The lens adapter is installed above the C-type interface ring and is located inside the body sleeve.

[0008] Among them, an installation shim is provided at the installation position of the first locking screw.

[0009] Among them, the light source reticle includes a high-brightness light source, a first sleeve, a reticle, and a second sleeve. The high-brightness light source is installed inside the first sleeve through a second locking screw. The second sleeve is installed on the side of the lens adapter and is located on the side wall of the body sleeve. The reticle is arranged inside the second sleeve. The first sleeve is installed inside the second sleeve through a third locking screw. One end of the second sleeve located inside the first sleeve abuts against the reticle.

[0010] A tool for adjusting the planar parallelism of the present utility model includes an image acquisition structure, a light source reticle, and an optical path system. The image acquisition structure includes a bottom plate, a leveling shim, a spring, a camera bracket, an industrial camera, a C-type interface ring, and a body sleeve. When performing parallelism adjustment, an optical glass is placed on the parallelism tool body. When another glass is not parallel to the reference glass on the body, the angle between the glass and the reference glass is adjusted to make their images coincide. That is to say, when the two crosshairs completely coincide, the corresponding two opposite sides are also parallel. Therefore, when assembling a large area array camera or a line scan camera, the photosensitive chip needs to be perpendicular to the central optical axis of the lens. When using the tool provided in this technical solution, only the parallelism between the lens mounting surface and the photosensitive chip needs to be adjusted, which greatly simplifies the assembly and adjustment steps of the industrial camera and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0012] Figure 1 It is an exploded structural schematic diagram of the tool for adjusting the planar parallelism provided by the present utility model.

[0013] Figure 2 It is an imaging diagram of the reference plane provided by the present utility model.

[0014] Figure 3 It is an imaging diagram when two planes are not parallel provided by the present utility model.

[0015] 1 - Lens adapter, 2 - Beam splitter, 3 - Second sleeve, 4 - Reticle, 5 - First sleeve, 6 - C-type interface ring, 7 - Connecting ring, 8 - C-interface clamping ring, 9 - Body sleeve, 10 - Bottom plate, 11 - Industrial camera, 12 - Camera bracket, 13 - Optical lens, 14 - First locking screw, 15 - Mounting gasket, 16 - Second screw, 17 - Spring, 18 - First screw, 19 - Leveling shim, 20 - Second locking screw, 21 - Third locking screw, 22 - High-brightness light source. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following will describe in detail the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, but should not be construed as a limitation of the present utility model.

[0017] Please refer to Figures 1 to 3 , the present utility model provides a tool for adjusting the planar parallelism. The tool for adjusting the planar parallelism includes an image acquisition structure, a light source reticle 4, and an optical path system. The image acquisition structure includes a base plate 10, a leveling shim 19, a spring 17, a camera bracket 12, an industrial camera 11, a C-type interface ring 6, and a body sleeve 9. The base plate 10 is installed at the bottom of the body sleeve 9 through a first screw 18. A leveling shim 19 is provided outside each first screw 18. The camera bracket 12 is installed above the base plate 10 through a second screw 16 and is located inside the body sleeve 9. A spring 17 is provided outside the second screw 16. The industrial camera 11 is installed on the camera bracket 12. The C-type interface ring 6 is provided at the top of the industrial camera 11. The optical path system is installed at the top of the body sleeve 9 through the C-type interface ring 6. The light source reticle 4 is installed on the side wall of the body sleeve 9. One end of the light source reticle 4 located inside the body sleeve 9 is connected to the optical path system.

[0018] In this embodiment, when making the parallelism adjustment, place an optical glass on the parallelism tool body, and its imaging is as shown in Figure 2 . When another glass is not parallel to the reference glass on the body, its imaging is as shown in Figure 3 . Adjust the angle between the glass and the reference glass. When they are completely parallel, its imaging is as shown in Figure 2 . That is to say, when the two crosshairs completely coincide, the corresponding two opposite sides are also parallel. Therefore, when assembling a large area array camera or a line scan camera, the photosensitive chip needs to be perpendicular to the central optical axis of the lens. When using the tool provided in this technical solution, only the parallelism between the lens mounting surface and the photosensitive chip needs to be adjusted, which greatly simplifies the camera assembly and adjustment steps and improves the production efficiency.

[0019] Further, the optical path system includes an optical lens 13, a C-interface clamping ring 8, a connecting ring 7, a beam splitter 2, a lens adapter 1, and a first locking screw 14. The optical lens 13 is installed on the connecting ring 7 through the C-interface clamping ring 8. The connecting ring 7 is installed at the top of the lens adapter 1 through the first locking screw 14. The beam splitter 2 is provided inside the lens adapter 1. The lens adapter 1 is installed above the C-type interface ring 6 and is located inside the body sleeve 9.

[0020] In this embodiment, after installing the lens adapter 1 above the C-type interface ring 6, install the optical lens 13 on the connecting ring 7 using the C-interface clamping ring 8, and then install the connecting ring 7 at the top of the lens adapter 1 to complete the installation of the optical path system.

[0021] Furthermore, an installation gasket 15 is provided at the installation position of the first locking screw 14.

[0022] In this embodiment, by providing the installation gasket 15, the contact area between the first locking screw 14 and the connection ring 7 is increased, so that the fastening force can be more evenly distributed on the contact surface, thereby improving the fastening stability and reliability.

[0023] Furthermore, the light source reticle 4 includes a high-brightness light source 22, a first sleeve 5, a reticle 4, and a second sleeve 3. The high-brightness light source 22 is installed inside the first sleeve 5 through a second locking screw 20. The second sleeve 3 is installed on the side of the lens adapter 1 and is located on the side wall of the body sleeve 9. The reticle 4 is provided inside the second sleeve 3. The first sleeve 5 is installed inside the second sleeve 3 through a third locking screw 21. One end of the second sleeve 3 located inside the first sleeve 5 abuts against the reticle 4.

[0024] In this embodiment, after installing the second sleeve 3 on the side of the lens adapter 1, placing the reticle 4 inside the second sleeve 3, installing the high-brightness light source 22 inside the first sleeve 5, and then installing the first sleeve 5 inside the second sleeve 3, so that one end of the second sleeve 3 located inside the first sleeve 5 abuts against the reticle 4, thereby completing the installation of the light source reticle 4.

[0025] The above-disclosed is only a preferred embodiment of the present invention. Of course, it cannot be used to limit the scope of the rights of the present invention. Those of ordinary skill in the art can understand the whole or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A planar parallelism adjustment tool, characterized in that it includes an image acquisition structure, a light source reticle, and an optical path system. The image acquisition structure includes a bottom plate, a leveling gasket, a spring, a camera bracket, an industrial camera, a C-type interface ring, and a body sleeve. The bottom plate is installed at the bottom of the body sleeve through a first screw, and each first screw is externally provided with the leveling gasket. The camera bracket is installed above the bottom plate through a second screw and is located inside the body sleeve. The second screw is externally provided with the spring. The industrial camera is installed on the camera bracket, and the C-type interface ring is provided at the top of the industrial camera. The optical path system is installed at the top of the body sleeve through the C-type interface ring, and the light source reticle is installed on the side wall of the body sleeve. One end of the light source reticle located inside the body sleeve is connected to the optical path system.

2. The planar parallelism adjustment tool according to claim 1, characterized in that the optical path system includes an optical lens, a C-interface clamping ring, a connecting ring, a beam splitter, a lens adapter, and a first locking screw. The optical lens is installed on the connecting ring through the C-interface clamping ring, and the connecting ring is installed at the top of the lens adapter through the first locking screw. The beam splitter is provided inside the lens adapter. The lens adapter is installed above the C-type interface ring and is located inside the body sleeve.

3. The planar parallelism adjustment tool according to claim 2, characterized in that an installation gasket is provided at the installation position of the first locking screw.

4. The planar parallelism adjustment tool according to claim 3, characterized in that the light source reticle includes a high-brightness light source, a first sleeve, a reticle, and a second sleeve. The high-brightness light source is installed inside the first sleeve through a second locking screw. The second sleeve is installed on the side of the lens adapter and is located on the side wall of the body sleeve. The reticle is provided inside the second sleeve. The first sleeve is installed inside the second sleeve through a third locking screw. One end of the second sleeve located inside the first sleeve abuts against the reticle.

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