Light source calibration device

Abstract

The utility model discloses a light source calibration device, comprising a cylinder body which is installed on a container objective lens of a device to be calibrated; the top cover is installed at the top end of the cylinder body, an opening part is formed in the top cover, and a containing space is formed between the top cover and the upper surface of the cylinder body; the reference plate is movably mounted in the accommodating space in the horizontal direction through a driving assembly, the opening part is closed when the reference plate translates to a first position, and the opening part is opened when the reference plate translates to a second position; and the mounting base is arranged on the outer side of the cylinder body in a sleeving mode and fixedly connected with the cylinder body, a containing groove is formed in the mounting base, and the driving assembly is arranged in the containing groove. Therefore, the light source calibration device can realize light source calibration under the condition of ensuring the normal work of the detection equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to light source calibration technical field, concretely relates to a light source calibration device. BACKGROUND

[0002] The near infrared detection equipment belongs to integrated equipment, wherein other components are contained besides the light source, the light source is located in the equipment, is mainly used for providing light for the optical fiber and surrounding environment, and besides this, other components such as reflector, lens can be contained.In order to reduce the dead weight and volume of equipment, the reference plate of the existing calibration light source is also very small, only applicable to the detection device of small spot light source, and for the calibration of large spot light source, if the area of reference plate is increased, the light of near infrared detection equipment will be shielded, and the normal work of near infrared detection equipment is affected.

[0003] Therefore, a light source calibration device is provided to realize light source calibration under the condition of ensuring the normal work of detection equipment, which becomes a problem to be solved by the person skilled in the art. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model embodiment provides a light source calibration device to solve at least one technical problem in the prior art.

[0005] In order to realize the above-mentioned purpose, the utility model embodiment provides the following technical scheme:

[0006] The utility model provides a light source calibration device, which comprises:

[0007] The cylinder body is installed on the container objective lens of the equipment to be calibrated.

[0008] The top cover is installed on the top end of the cylinder body, and an opening part is formed in the top cover.

[0009] The reference plate is movably installed in the accommodation space in the horizontal direction through the driving assembly, and the opening part is closed when the reference plate is translated to the first position, and the opening part is opened when the reference plate is translated to the second position.

[0010] The mounting seat is sleeved on the outside of the cylinder body and is fixedly connected with the cylinder body, and the mounting seat is provided with an accommodation groove, and the driving assembly is arranged in the accommodation groove.

[0011] In the non-calibration state, the reference plate is accommodated in the accommodating space of the top cover, at this time, the opening part of the top cover is in the open state, the device light source can normally emit and be collected by the optical fiber, and the normal work of the device is not affected; when the calibration work is needed, the driving assembly is started, the reference plate is pushed out from the accommodating space by the driving assembly, and the opening part is closed, at this time, the reference plate as one of the calibration components can participate in the calibration work. In this way, the light source calibration device can realize light source calibration while ensuring the normal work of the detection device.

[0012] In some embodiments, the reference plate is two, and the two reference plates are respectively in driving connection with the respective driving assemblies, and the two reference plates close the opening part when moving to the first position, and the two reference plates open the opening part when moving to the second position.

[0013] In some embodiments, the mounting seat has two accommodating grooves arranged oppositely, and the driving assemblies of the two reference plates are installed in the two accommodating grooves one by one.

[0014] In some embodiments, the driving assembly comprises:

[0015] A telescopic cylinder is horizontally arranged in the accommodating groove;

[0016] A transmission rod is in driving connection with the telescopic cylinder at one end and in driving connection with the reference plate at the other end, so as to drive the reference plate to move in the horizontal direction.

[0017] In some embodiments, the transmission rod comprises:

[0018] A rotating shaft is rotatably installed in the accommodating groove, and the rotating axis of the rotating shaft is perpendicular to the reference plate;

[0019] A first swing arm is in perpendicular connection with the rotating shaft at one end, and in connection with the reference plate at the other end;

[0020] A second swing arm is in perpendicular connection with the rotating shaft at one end, and in hinged connection with the free end of the telescopic cylinder at the other end.

[0021] In some embodiments, a guide column is installed in the accommodating groove, and the rotating shaft is rotatably sleeved on the guide column.

[0022] In some embodiments, a strip-shaped hole is formed on the reference plate, a guide pin is arranged on the end of the first swing arm connected with the reference plate, and the guide pin is movably installed in the strip-shaped hole along the length direction of the strip-shaped hole.

[0023] In some embodiments, the side of the top cover is provided with a guide groove extending along the translation direction of the reference plate, and the reference plate is slidably mounted in the guide groove. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be obtained from the provided drawings without creative labor.

[0025] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0026] Figure 1 A top view of the light source calibration device provided by the present application in a non-calibration state;

[0027] Figure 2 A partial structural schematic view of the light source calibration device provided by the present application in a calibration state;

[0028] Figure 3 A partial structural schematic view of the light source calibration device provided by the present application;

[0029] Figure 4 A partial structural schematic view of the light source calibration device provided by the present application;

[0030] Figure 5 A partial structural schematic view of the light source calibration device provided by the present application;

[0031] Figure 6 A partial structural schematic view of the light source calibration device provided by the present application;

[0032] Figure 7 A partial structural schematic view of the light source calibration device provided by the present application;

[0033] Figure 8 A structural schematic view of the mounting seat in the light source calibration device provided by the present application;

[0034] Figure 9The structure diagram of the transmission rod in the light source calibration device provided by the utility model shows that

[0035] Figure 10 The structure diagram of the reference plate in the light source calibration device provided by the utility model shows that

[0036] Mark explanation:

[0037] 1-cylinder;

[0038] 2-top cover, 21-opening part, 22-guiding groove;

[0039] 3-reference plate, 31-strip hole;

[0040] 4-mounting base, 41-receiving groove, 42-guiding column;

[0041] 5-telescopic cylinder;

[0042] 6-transmission rod, 61-first swing arm, 62-second swing arm, 63-rotation shaft, 64-guiding pin. Specific embodiments

[0043] The embodiments of the utility model are described below by specific examples, and those skilled in the art can easily understand other advantages and effects of the utility model from the disclosed content of the specification, obviously, the described examples are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0044] The embodiments of the utility model are described below by specific examples, and those skilled in the art can easily understand other advantages and effects of the utility model from the disclosed content of the specification, obviously, the described examples are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model. Figures 1-10 The light source calibration device provided by the utility model is introduced.

[0045] In one specific embodiment, the light source calibration device provided by the utility model comprises a cylinder 1, a top cover 2, a reference plate 3 and a mounting base 4. Among them, the cylinder 1 is installed on the container objective lens of the equipment to be calibrated, in this embodiment, a plurality of connecting ears can be arranged on the circumference of the cylinder 1, the cylinder 1 is installed on the container objective lens through the connecting ears, and the connecting ear and the container objective lens can be detachably connected through bolt connection and the like; the cross section of the cylinder 1 can be circular, square and the like, which is compatible with the structure of the equipment to be calibrated.

[0046] The top cover 2 is installed at the top end of the barrel 1, and an opening part 21 is formed on the top cover 2. The top cover 2 and the barrel 1 can be fixed by buckle connection or bolt connection. The opening shape and size of the opening part 21 are matched with the number and shape of the reference plates 3, so that each reference plate 3 can close the opening part 21 when it is in a flat and unfolded state. In this embodiment, since the reference plates 3 in the retracted state need to be accommodated, the top cover 2 and the upper surface of the barrel 1 have a receiving space therebetween.

[0047] The reference plates 3 are movably installed in the receiving space in the horizontal direction by the driving assemblies. When the reference plates 3 are translated to the first position, the opening part 21 is closed. When the reference plates 3 are translated to the second position, the opening part 21 is opened. In theory, one, two or four reference plates 3 can be provided. When one reference plate 3 is provided, it is installed in one direction and pushed out in the other direction. When two reference plates 3 are provided, they are synchronously pushed out in opposite directions. When four reference plates 3 are provided, they are simultaneously pushed out in four directions.

[0048] The mounting seat 4 is sleeved on the outside of the barrel 1 and fixedly connected with the barrel 1. The mounting seat 4 is provided with a receiving groove 41, and the driving assembly is arranged in the receiving groove 41. The four corners of the mounting seat 4 can be respectively provided with avoiding grooves. Screw holes are formed at the top of the avoiding grooves. The screw holes and the connecting ears on the barrel 1 one-to-one correspond. Screws are sequentially threaded through the screw holes and the connecting ears to realize the fixed connection of the barrel 1, the mounting seat 4 and the container objective lens.

[0049] In the non-calibration operation state of the light source calibration device, the reference plates 3 are accommodated in the receiving space of the top cover 2. At this time, the opening part 21 of the top cover 2 is in the open state. The device light source can normally emit and be collected by the optical fiber, without affecting the normal work of the device. When calibration operation is needed, the driving assembly is started to push the reference plates 3 out of the receiving space until the opening part 21 is closed. At this time, the reference plates 3 as one of the calibration components can participate in the calibration operation. In this way, the light source calibration device can realize light source calibration while ensuring the normal work of the detection device.

[0050] In some embodiments, the reference plates 3 are two. The two reference plates 3 are respectively drivingly connected with the respective driving assemblies. When the two reference plates 3 are moved to the first position, the opening part 21 is closed. When the two reference plates 3 are moved to the second position, the opening part 21 is opened.

[0051] In the case of providing two reference plates 3, the driving assemblies are also correspondingly provided with two groups. In order to be matched, the mounting seat 4 has two oppositely arranged receiving grooves 41. The driving assemblies of the two reference plates 3 are one-to-one installed in the two receiving grooves 41 to improve the compactness and rationality of the structure.

[0052] Specifically, the driving assembly comprises a telescopic cylinder 5 and a transmission rod 6; the telescopic cylinder 5 outputs power as a power component, and the transmission rod 6 transmits power as a transmission component; the telescopic cylinder 5 is horizontally arranged in the accommodating groove 41, one end of the transmission rod 6 is in transmission connection with the telescopic cylinder 5, and the other end is in transmission connection with the reference plate 3, so as to drive the reference plate 3 to move in the horizontal direction.

[0053] Further, the transmission rod 6 comprises a rotating shaft 63, a first swing arm 61 and a second swing arm 62; the rotating shaft 63 is rotatably arranged in the accommodating groove 41, and the rotating axis of the rotating shaft 63 is perpendicular to the reference plate 3; one end of the first swing arm 61 is in perpendicular connection with the rotating shaft 63, and the other end is in connection with the reference plate 3; one end of the second swing arm 62 is in perpendicular connection with the rotating shaft 63, and the other end is in hinged connection with the free end of the telescopic cylinder 5; a guide column 42 is arranged in the accommodating groove 41, and the rotating shaft 63 is rotatably sleeved on the guide column 42; a strip-shaped hole 31 is formed in the reference plate 3, a guide pin 64 is arranged at the end of the first swing arm 61 in connection with the reference plate 3, and the guide pin 64 is movably arranged in the strip-shaped hole 31 along the length direction of the strip-shaped hole 31; and the telescopic cylinder 5 can be any one of a pneumatic cylinder, an electric cylinder or an oil cylinder.

[0054] In the working process, when the telescopic rod is elongated, the second swing arm 62 is pushed to swing, at the same time, the rotating shaft 63 of the integral structure rotates around the guide column 42, so as to drive the first swing arm 61 to swing, and since the end of the first swing arm 61 is limited in the strip-shaped hole 31, the reference plate 3 can be driven to translate.

[0055] In order to improve the directionality of the movement of the reference plate 3, a guide groove 22 is formed laterally on the top cover 2, the guide groove 22 extends along the translation direction of the reference plate 3, and the reference plate 3 is slidably arranged in the guide groove 22. It should be understood that when the reference plate 3 is two, the guide groove 22 is also provided with two, and the two guide grooves 22 are oppositely arranged, and the reference plate 3 is slidably arranged in the guide groove 22 respectively.

[0056] In order to facilitate understanding, the following takes one use scene as an example to briefly describe the assembly and use process of the light source calibration device provided by the utility model.

[0057] With the far infrared equipment calibration of large spot light source as an example, the light source calibration device comprises a shell, a top cover 2, a mounting seat 4, air cylinders, a transmission rod 6, reference plates 3 and various screws. When the light source calibration device is not installed, the shell is fixed on the container sight glass through four bolts. When the light source calibration device is installed, the shell is inserted into the hole in the middle of the mounting seat 4 from top to bottom, the four mounting positions of the shell are clamped into the four hole limiting grooves of the mounting seat 4, the two air cylinders are respectively installed on the guide columns 42 on the two sides inside the mounting seat 4, the other end of the air cylinder is fixed with the second swing arm 62 of the transmission rod 6, the transmission rod 6 is fixed on the mounting hole reserved inside the shell, the top cover 2 has a certain gap with the top end of the shell, the gap is used to place the reference plates 3, the top cover 2 also has a limiting groove, which is used to limit the sliding direction of the reference plates 3, the two reference plates 3 are respectively installed in the limiting grooves of the top cover 2, the reference plates 3 are provided with strip-shaped holes 31 for limiting, the guide pin 64 provided on the first swing arm 61 of the transmission rod 6 is installed in the strip-shaped hole 31 of the reference plate 3, after the internal components are installed, the top cover 2 is finally installed on the shell and fixed with the shell through four screws. When the light source with the calibration device is installed, four bolts are inserted from below the shell and then the whole is installed on the container sight glass.

[0058] In the detection process of near infrared, the light source needs to be calibrated according to the use requirement, and the required component for calibration is generally the reference plate 3. When normal use is not required for calibration, the reference plate 3 is located on both sides, the light source normally passes through the optical fiber and is normally collected, when calibration is required, the air cylinder is pushed forward under the action of compressed air, the transmission rod 6 is pushed by the air cylinder and is rotated, in the rotating process of the transmission rod 6, the guide pin 64 on the first swing arm 61 of the transmission rod 6 slides in the limiting hole of the reference plate 3, so that the two reference plates 3 are simultaneously pushed to the center of the light source, finally the two reference plates 3 are closed under the pushing of the transmission rod 6, after the reference plate 3 is closed, the light source calibration starts, the light source irradiates on the reference plate 3, the optical fiber collects, after the calibration is completed, the air cylinder resets, the reference plate 3 is retracted, the light source normally passes through, and the optical fiber normally collects.

[0059] The whole is machined from aluminum material, is light in weight, has a simple shell structure, can be adapted to cylindrical and other shaped light sources, can be slightly adjusted in the shell structure for non-cylindrical light sources, the internal components are simple to install, have various machining forms, can be integrally machined, can be disassembled and machined and then welded, the main calibration components are pushed by the air cylinder, do not need to additionally increase power supply, have a wide range of use, can be applicable to large spot light sources, and the calibration device can also be applicable to small spot light sources after being reduced in proportion.

[0060] The above detailed description of the specific embodiments, the purpose, technical scheme and beneficial effects of the utility model have been further explained, and it should be understood that the above is only a specific embodiment of the utility model and is not used to limit the protection scope of the utility model, and any modification, equivalent replacement, improvement, etc. made on the basis of the technical scheme of the utility model should be included in the protection scope of the utility model.

Claims

1. A light source calibration device, characterized in that: include: a barrel, the barrel being mounted on a container objective lens of a device to be calibrated; A top cover is mounted on the top of the cylinder, and an opening is formed on the top cover, with a receiving space being defined between the top cover and the upper surface of the cylinder; a reference plate, the reference plate being movably mounted in the accommodating space in a horizontal direction by a driving assembly, and closing the opening when the reference plate is translated to a first position, and opening the opening when the reference plate is translated to a second position; The mounting seat is sleeved on the outside of the cylinder and fixedly connected to the cylinder. The mounting seat is provided with a receiving groove, and the driving component is arranged in the receiving groove.

2. The light source calibration device according to claim 1, characterized in that: There are two reference plates, which are respectively connected to the respective drive assemblies in a transmission manner. When both reference plates move to the first position, the opening is closed, and when both reference plates move to the second position, the opening is opened.

3. The light source calibration device according to claim 2, characterized in that: The mounting seat has two accommodating grooves arranged opposite to each other, and the driving components of the two reference plates are installed in the two accommodating grooves in a one-to-one correspondence.

4. The light source calibration device according to claim 3, characterized in that: The drive assembly includes: a telescopic cylinder, the telescopic cylinder being horizontally arranged in the accommodating groove; A transmission rod, one end of which is transmission-connected to the telescopic cylinder, and the other end of which is transmission-connected to the reference plate, so as to drive the reference plate to move in the horizontal direction.

5. The light source calibration device according to claim 4, characterized in that: The transmission rod comprises: A rotating shaft, the rotating shaft being rotatably mounted on the accommodating groove, wherein the rotating axis of the rotating shaft is perpendicular to the reference plate; a first swing arm, one end of the first swing arm being vertically connected to the rotating shaft, and the other end of the first swing arm being connected to the reference plate; A second swing arm, one end of the second swing arm is vertically connected to the rotating shaft, and the other end of the second swing arm is hinged to the free end of the telescopic cylinder.

6. The light source calibration device according to claim 5, characterized in that: A guide column is installed in the accommodating groove, and the rotating shaft is rotatably sleeved on the guide column in the circumferential direction.

7. The light source calibration device according to claim 5, characterized in that: A strip-shaped hole is provided on the reference plate, and a guide pin is provided at one end of the first swing arm connected to the reference plate. The guide pin is movably installed in the strip-shaped hole along the length direction of the strip-shaped hole.

8. The light source calibration device according to any one of claims 1 to 7, characterized in that: A guide groove is provided on the side of the top cover. The guide groove extends along the translation direction of the reference plate, and the reference plate is slidably installed in the guide groove.

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