An object state detection device for an environmental test chamber

Abstract

The application discloses an object state detection device for an environmental test chamber, which comprises a shooting mechanism, a rotating mechanism and a driving mechanism, the rotating mechanism comprises a rotating ring and a fixing mechanism, and the shooting mechanism is arranged on the rotating ring; the fixing mechanism is arranged in the rotating ring and is distributed at both ends of the rotating ring, and is used for fixing the measured object in the rotating ring; the rotating ring is arranged on the driving mechanism, and the driving mechanism is used for driving the rotating ring to rotate by 360 degrees along the y-axis direction to drive the shooting mechanism to rotate around the measured object for observation; the driving mechanism, the rotating mechanism and the shooting mechanism are arranged in the test chamber, the shooting mechanism is connected with the rotating mechanism, the measured object is arranged in the rotating mechanism, the driving mechanism drives the rotating mechanism, the shooting mechanism is shot around the object by 360 degrees without dead angle, and the dynamic change process of the measured object in the test chamber is recorded; the structure principle is simple, the observation effect is good, the rear-end image processing mode is simple, and the observation cost of the measured object can be remarkably reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of object detection of environmental test chamber, and particularly relates to an object state detection device for an environmental test chamber. BACKGROUND

[0002] With the continuous improvement of modern industrial manufacturing level, many products, especially parts and whole machines in the fields of electronics, automobiles, aerospace, etc., need to ensure stable performance under various complex and extreme environmental conditions; environmental test chambers can simulate different environmental factors such as high temperature, low temperature, high humidity, low air pressure, salt spray, etc., to test the tolerance of products. During the test process, it is crucial to accurately detect the state, position and whether there are abnormalities of the objects placed in the test chamber, such as detecting whether the product has displacement, deformation, damage, etc. during the test process, and detecting the internal objects to better evaluate the test results and ensure the effectiveness of the test; however, the test process of the environmental test chamber often lasts for a long time and involves changes in various environmental parameters; traditional manual monitoring methods have many limitations, such as difficulty in real-time continuous observation, easy observation errors, and inaccurate data recording.

[0003] In recent years, sensor technology, machine vision technology, image processing technology, etc. have developed and matured. High-precision photoelectric sensors can accurately perceive the position changes of objects, and advanced machine vision systems can clearly capture the appearance details of objects in the test chamber, and determine whether there are damages, etc. through image analysis; but in the environmental test chamber, it is difficult to continuously observe the detected objects in 360° without interfering with the measured objects; in the prior art, multiple cameras are usually used to observe the objects, but it is difficult to plan and set multiple cameras in the chamber, and powerful host computers are needed to process and analyze the data of multiple cameras to obtain observation conclusions; and the high and low temperature tolerance of the camera in the test chamber needs to be considered, and the camera needs to be protected, which has a complex structure and high maintenance cost. SUMMARY

[0004] The purpose of the present application is to provide an object state detection device for an environmental test chamber, which comprises a driving mechanism, a rotating mechanism and a shooting mechanism, the shooting mechanism is connected with the rotating mechanism, the object is arranged in the rotating mechanism, the driving mechanism drives the rotating mechanism, and the shooting mechanism shoots the object in 360° without dead angle, so as to record the dynamic change process of the object in the test chamber.

[0005] The present application is realized by the following technical scheme:

[0006] The utility model provides an object state detection device for environmental test chamber, including shooting mechanism, rotating mechanism and drive mechanism, rotating mechanism includes rotating ring and fixed mechanism, shooting mechanism sets up on rotating ring, fixed mechanism sets up in rotating ring and distributes in both ends of rotating ring, the fixed mechanism is used for fixing the object to be measured in rotating ring, rotating ring sets up on drive mechanism, drive mechanism is used for driving rotating ring to rotate along y axle direction 360 DEG to drive shooting mechanism rotates and observes around the object to be measured.

[0007] Further, the drive mechanism includes a base and a drive assembly, the drive assembly is arranged on the base, the drive assembly includes a protective shell, a first drive motor, a worm gear, a worm and a rotating rod, the worm gear and the worm are meshed and connected in the protective shell, the first drive motor is connected with the worm in the protective shell and drives the worm gear and the worm to rotate; the rotating rod is arranged on the worm gear and fixedly connected with the side surface of the worm gear, and the end of the rotating rod extends out of the protective shell and is fixedly connected with the rotating ring.

[0008] Further, the fixed mechanism includes a first fixing assembly, a second fixing assembly and a steel cable assembly, the first fixing assembly is arranged close to the drive mechanism, the second fixing assembly is arranged opposite to and coaxial with the first fixing assembly, and the steel cable assembly is connected with the first fixing assembly and the second fixing assembly, and the steel cable assembly fixes the object to be detected in the middle part of the rotating ring.

[0009] Further, the first fixing assembly includes a first connecting piece and a first bearing, the rotating rod is in a cylindrical structure, the first bearing is arranged in the rotating rod, and the first connecting piece is fixedly connected with the base after sequentially penetrating through the rotating ring, the rotating rod, the first bearing, the worm gear and the protective shell.

[0010] Further, the second fixing assembly includes a second connecting piece and a second bearing, the second bearing is arranged on the rotating ring and fixedly connected with the rotating ring, and the second connecting piece is insertedly fitted and rotationally connected with the second bearing; a limiting cap is arranged on the second connecting piece, the limiting cap is threadedly connected with the second connecting piece at the top of the rotating ring, the bottom of the limiting cap is in a semispherical structure, the limiting cap is located outside the rotating ring and abuts against the second bearing.

[0011] Further, the steel cable assembly includes a first steel cable group and a second steel cable group, and each of the first steel cable group and the second steel cable group includes two steel cables; one end of the first steel cable group is connected with the first connecting piece, and the other end thereof is connected with the bottom of the object to be detected; the second steel cable group is connected with the second connecting piece, and the other end thereof is connected with the top of the object to be detected.

[0012] Further, springs are arranged between the ends of the two steel cables of the first steel cable group and the first connecting piece.

[0013] Further, the shooting mechanism comprises a second driving motor and a vacuum camera assembly, the vacuum camera assembly is arranged on the second driving motor and located inside the rotating ring; a driving wheel and two limiting wheels are arranged on the second driving motor, the driving wheel is located outside the rotating ring, and the two limiting wheels are located inside the rotating ring, the limiting wheels cooperate with the driving wheel to fix the second driving motor on the rotating ring, so that the second driving motor reciprocates on one side of the rotating ring.

[0014] Further, the vacuum camera assembly comprises a shell, a thermal imaging camera and a temperature control assembly, the shell is connected with the side of the second driving motor; the shell is of a vacuum double-layer structure, a germanium window is arranged at the front end of the shell, a lens of the thermal imaging camera is coaxially arranged with the germanium window, and a heating ring is arranged at the edge of the germanium window in the shell; the temperature control assembly is arranged at the rear end of the shell, and is used for adjusting the temperature in the shell.

[0015] Further, the temperature control assembly comprises an aerogel separation layer, a micro-channel heat exchanger and a forced circulation fan, the aerogel separation layer is used for sealing the bottom of the shell, the micro-channel heat exchanger is arranged through the aerogel separation layer at the end, and the forced circulation fan is located in the shell and connected with the micro-channel heat exchanger.

[0016] Compared with the prior art, the present application has the following advantages and beneficial effects:

[0017] 1) In the present application, the driving mechanism, the rotating mechanism and the shooting mechanism are arranged in the test box, the shooting mechanism is connected with the rotating mechanism, the measured object is arranged in the rotating mechanism, the driving mechanism drives the rotating mechanism, the shooting mechanism performs all-around and dead-angle-free shooting around the measured object, so as to record the dynamic change process of the measured object in the test box, the structure principle is simple, the observation effect is good, the rear-end image processing mode is simple, and the observation cost of the measured object can be significantly reduced.

[0018] 2) In the present application, the fixing mechanism is arranged at the upper and lower ends of the rotating ring, the object is fixed in the middle part of the rotating ring by the fixing mechanism, the fixing mechanism is relatively static with the measured object, the measured object remains static when the rotating ring rotates, the camera of the shooting mechanism follows the rotation, and the spring is arranged on the cable assembly of the fixing mechanism, so that the cable can keep a relatively constant tension on the measured object, so as to adapt to the stress caused by thermal expansion and contraction of the measured object in the test box due to high and low temperature. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and other related drawings can also be obtained by those skilled in the art without creative labor.

[0020] Figure 1 Figure 1 is a structural schematic diagram of an object state detection device in the present application.

[0021] Figure 2 Figure 2 is an assembly result of a driving mechanism and a first connecting piece in the present application.

[0022] Figure 3 Figure 3 is a structural schematic diagram of a vacuum camera assembly in the present application.

[0023] Wherein: 1-rotating ring, 2-driving mechanism, 21-base, 22-protection shell, 23-first driving motor, 24-worm wheel, 25-worm, 26-rotating rod, 3-first connecting piece, 31-first bearing, 4-second connecting piece, 41-limiting cap, 5-first steel cable group, 6-second steel cable group, 7-spring, 8-second driving motor, 81-moving wheel, 82-limiting wheel, 9-vacuum camera assembly, 91-housing, 92-thermal imaging camera, 93-germanium window, 94-heating ring, 95-aerogel spacer, 96-micro-channel heat exchanger, 97-forced circulation fan. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application.

[0025] Embodiment 1:

[0026] An object state detection device for an environmental test chamber, such as Figure 1 and Figure 2As shown, the device comprises a shooting mechanism, a rotating mechanism and a driving mechanism 2. The rotating mechanism comprises a rotating ring 1 and a fixing mechanism. The shooting mechanism is arranged on the rotating ring 1, and the rotating ring 1 is a circular ring structure. The fixing mechanism is arranged in the rotating ring 1 and distributed at both ends of the rotating ring 1. The fixing mechanism is used for fixing the measured object in the rotating ring 1. The measured object is fixed in the middle of the rotating ring 1, and the measured object remains stationary when the rotating ring 1 rotates. The rotating ring 1 is arranged on the driving mechanism 2, and the driving mechanism 2 is used for driving the rotating ring 1 to rotate. The rotating ring 1 rotates 360° along the y-axis direction at the connection position with the driving mechanism 2 to drive the shooting mechanism to rotate around the measured object for observation. The driving mechanism 2 comprises a base 21 and a driving assembly. The base 21 is a plate structure, and the base 21 is connected with the bottom of the environmental test chamber and used for fixing the rotating ring 1 and the measured object. The driving assembly is arranged on the base 21. The driving assembly comprises a protective shell 22, a first driving motor 23, a worm gear 24, a worm 25 and a rotating rod 26. The worm gear 24 and the worm 25 are meshed and connected in the protective shell 22. The first driving motor 23 is connected with the worm in the protective shell 22 and drives the worm gear 24 and the worm 25 to rotate. The protective shell 22 limits the worm gear 24, the worm 25 and the first driving motor 23. The rotating rod 26 is arranged on the worm gear 24 and fixedly connected with the side surface of the worm gear 24. The rotating rod 26 rotates with the worm gear 24. The end of the rotating rod 26 extends out of the protective shell 22 and is fixedly connected with the rotating ring 1. The rotating rod 26 drives the rotating ring 1 to rotate, so that the shooting mechanism rotates around the measured object.

[0027] Embodiment 2

[0028] In this embodiment, the fixing mechanism is further limited based on the above-mentioned embodiments, such as Figure 1As shown, the fixing mechanism comprises a first fixing assembly, a second fixing assembly and a cable assembly, the first fixing assembly is arranged close to the driving mechanism 2, the second fixing assembly is arranged opposite and coaxial to the first fixing assembly, the cable assembly is connected with the first fixing assembly and the second fixing assembly, and the cable assembly fixes the measured object in the middle of the rotating ring 1; the first fixing assembly comprises a first connecting piece 3 and a first bearing 31, the first connecting piece 3 is a rod-shaped structure, the top end of which is connected with the cable assembly; the rotating rod 26 is a cylindrical structure, the first bearing 31 is arranged in the rotating rod 26, the outer side of the first bearing 31 is connected with the rotating rod 26, and the inner side of the first bearing 31 is connected with the first connecting piece 3, the first connecting piece 3 is fixedly connected with the base 21 in sequence after passing through the rotating ring 1, the rotating rod 26, the first bearing 31, the worm gear 24 and the protective shell 22, when the rotating rod 26 rotates, the rotating ring 1 rotates with it, and the first connecting piece 3 remains stationary; the second fixing assembly comprises a second connecting piece 4 and a second bearing, the second bearing is arranged on the rotating ring 1 and fixedly connected with the rotating ring 1, the outer side of the second bearing is connected with the rotating ring 1, the inner side of the second bearing is sleeved with the second connecting piece 4, and the second connecting piece 4 is connected with the second bearing in plug-in fit; at the same time, a limiting cap 41 is arranged on the second connecting piece 4, the bottom of the limiting cap 41 is a hemispherical structure, the limiting cap 41 is located outside the rotating ring 1 and abuts against the inner side end face of the second bearing at the bottom, the top of the second connecting piece 4 can pass through the limiting cap 41, and the limiting cap 41 is threadedly connected with the second connecting piece 4, so that the second connecting piece 4 is fixed, and the limiting cap 41 can adjust the tightness of the measured object on the rotating ring 1 after being rotated; when the rotating ring 1 rotates, the outer part of the second bearing rotates with it, and the inner part of the second bearing remains stationary with the second connecting piece 4; the cable assembly comprises a first cable group 5 and a second cable group 6, and each of the first cable group 5 and the second cable group 6 comprises two cables; one end of the first cable group 5 is connected with the first connecting piece 3, and the other end thereof is connected with the bottom of the measured object; the second cable group 6 is connected with the second connecting piece 4, and the other end thereof is connected with the top of the measured object; the two cables of the first cable group 5 are both provided with a spring 7 between the end and the first connecting piece 3, so that the cables can keep a relatively constant pulling force on the measured object, so as to adapt to the stress of the measured object caused by thermal expansion and contraction due to high and low temperature in the test box, and when the measured object is installed, the limiting cap 41 is rotated to pull and fix the measured object by the cables. The other parts of the embodiment are the same as those of the above-mentioned embodiment, and details are not repeated here.

[0029] Embodiment 3

[0030] On the basis of the above-mentioned embodiment, the photographing mechanism is further limited, like Figure 1 and Figure 3As shown, the shooting mechanism includes the second driving motor 8 and the vacuum camera assembly 9 arranged on the second driving motor 8 and inside the rotating ring 1; the second driving motor 8 is provided with a driving wheel 81 and two limiting wheels 82, the driving wheel 81 is located outside the rotating ring 1, and the two limiting wheels 82 are located inside the rotating ring 1; the limiting wheels 82 cooperate with the driving wheel 81 to fix the second driving motor 8 on the rotating ring 1 to prevent the second driving motor 8 from falling off, so that the second driving motor 8 reciprocates on one side of the rotating ring 1; the running track of the second driving motor 8 is limited by the first and second fixing assemblies, so that the second driving motor 8 can only reciprocate on one side of the rotating ring 1; meanwhile, the second driving motor 8 can be controlled by an external host computer or a remote controller to stop at any direction or reciprocate within a range on one side of the rotating ring 1; however, with the rotation of the rotating ring 1, the vacuum camera assembly 9 can perform omnidirectional shooting on the measured object; the vacuum camera assembly 9 includes a shell 91, a thermal imaging camera 92 and a temperature control assembly; the shell 91 is connected with the side of the second driving motor 8; the shell 91 has a vacuum double-layer structure; the vacuum shell 91 can physically isolate the environmental temperature of the test box, thereby reducing the influence of external temperature on the thermal imaging camera 92; the shell 91 is provided with a germanium window 93 at the front end; the lens of the thermal imaging camera 92 is coaxially arranged with the germanium window 93; the shell 91 is provided with a heating ring 94 at the edge of the germanium window 93; the heating ring 94 heats the germanium window 93 to prevent fogging; the temperature control assembly is arranged at the rear end of the shell 91; the temperature control assembly is used for adjusting the temperature in the shell 91; the temperature control assembly includes an aerogel separation layer 95, a micro-channel heat exchanger 96 and a forced circulation fan 97; the aerogel separation layer 95 is used for sealing the bottom of the shell 91; the micro-channel heat exchanger 96 is arranged through the aerogel separation layer 95 at the tail end; the forced circulation fan 97 is located in the shell 91 and connected with the micro-channel heat exchanger 96; the micro-channel heat exchanger 96 can heat or cool the temperature in the shell 91; the forced circulation fan 97 is used for forced heat exchange in the shell 91, so that the temperature in the shell 91 remains stable; and the aerogel separation layer 95 can isolate the transmission of external temperature of the shell 91. The other parts of the embodiment are the same as those of the above-mentioned embodiment, and will not be described here.

[0031] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] In addition, the terms "horizontal", "vertical", and the like in the description of the application do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0033] In the description of the application, it should also be noted that, unless otherwise specified and limited, if the terms "set", "install", "connect", "connect" appear, they should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium; can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0034] The above is only the preferred embodiment of the application, not any form of limitation on the application, any simple modification, equivalent change of the above embodiment according to the technical essence of the application, falls within the protection scope of the application.

Claims

1. An object state detection device for an environmental test chamber, characterized in that: The application relates to a rotating mechanism for a camera, which comprises a shooting mechanism, a rotating mechanism and a driving mechanism, wherein the rotating mechanism comprises a rotating ring and a fixing mechanism, the shooting mechanism is arranged on the rotating ring, the fixing mechanism is arranged in the rotating ring and is distributed at both ends of the rotating ring, the fixing mechanism is used for fixing a measured object in the rotating ring, the rotating ring is arranged on the driving mechanism, the driving mechanism is used for driving the rotating ring to rotate by 360 degrees along the y-axis direction to drive the shooting mechanism to rotate around the measured object for observation, the driving mechanism comprises a base and a driving assembly, the driving assembly is arranged on the base, and the rotating ring is arranged on the driving assembly, the fixing mechanism comprises a first fixing assembly, a second fixing assembly and a steel cable assembly, the first fixing assembly is arranged close to the driving assembly, the second fixing assembly is coaxially arranged opposite to the first fixing assembly, the steel cable assembly is connected with the first fixing assembly and the second fixing assembly, and the steel cable assembly fixes the measured object in the middle of the rotating ring.

2. The object state detection device for the environmental test chamber according to claim 1, wherein The driving assembly comprises a protection shell, a first driving motor, a worm wheel, a worm and a rotating rod, the worm wheel and the worm are meshed and connected in the protection shell, the first driving motor is connected with the worm in the protection shell and drives the worm wheel and the worm to rotate, and the rotating rod is arranged on the worm wheel and is fixedly connected with the side surface of the worm wheel, and the end of the rotating rod extends out of the protection shell and is fixedly connected with the rotating ring.

3. The object state detection device for the environmental test chamber according to claim 2, wherein The first fixing assembly comprises a first connecting piece and a first bearing, the rotating rod is in a cylindrical structure, the first bearing is arranged in the rotating rod, and the first connecting piece is fixedly connected with the base after sequentially penetrating through the rotating ring, the rotating rod, the first bearing, the worm wheel and the protection shell.

4. The object state detection device for the environmental test chamber according to claim 3, wherein The second fixing assembly comprises a second connecting piece and a second bearing, the second bearing is arranged on the rotating ring and is fixedly connected with the rotating ring, the second connecting piece is insertedly connected with the second bearing and is rotationally connected, a limiting cap is arranged on the second connecting piece, the limiting cap is screwedly connected with the second connecting piece at the top of the rotating ring, the bottom of the limiting cap is in a semispherical structure, the limiting cap is located outside the rotating ring and abuts against the second bearing.

5. The object state detection device for the environmental test chamber according to claim 4, wherein The steel cable assembly comprises a first steel cable group and a second steel cable group, and each of the first steel cable group and the second steel cable group comprises two steel cables, one end of the first steel cable group is connected with the first connecting piece, the other end of the first steel cable group is connected with the bottom of the measured object, the second steel cable group is connected with the second connecting piece, and the other end of the second steel cable group is connected with the top of the measured object.

6. The object state detection device for the environmental test chamber according to claim 5, wherein The ends of the two steel cables of the first steel cable group are provided with springs between the ends and the first connecting piece.

7. The object state detection device for the environmental test chamber according to claim 1, wherein The shooting mechanism comprises a second driving motor and a vacuum camera assembly, the vacuum camera assembly is arranged on the second driving motor and is located in the rotating ring, one driving wheel and two limiting wheels are arranged on the second driving motor, the driving wheel is located outside the rotating ring, the two limiting wheels are located inside the rotating ring, the limiting wheels are matched with the driving wheel to fix the second driving motor on the rotating ring, and the second driving motor is reciprocated on one side of the rotating ring.

8. The object state detection device for the environmental test chamber according to claim 7, wherein The vacuum camera assembly comprises a shell, a thermal imaging camera and a temperature control assembly, the shell is connected with the side of the second driving motor; the shell is a vacuum double-layer structure, a germanium window is arranged at the front end of the shell, the lens of the thermal imaging camera is coaxially arranged with the germanium window, and a heating ring is arranged at the edge of the germanium window in the shell; the temperature control assembly is arranged at the rear end of the shell, and the temperature control assembly is used for adjusting the temperature in the shell.

9. The object state detecting apparatus for the environmental test chamber according to claim 8, wherein The temperature control assembly comprises an aerogel separation layer, a micro-channel heat exchanger and a forced circulation fan, the aerogel separation layer is used for sealing the bottom of the shell, the micro-channel heat exchanger is arranged through the aerogel separation layer at the end, and the forced circulation fan is located in the shell and connected with the micro-channel heat exchanger.

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