Object state detection device for environmental test box

Abstract

The invention discloses an object state detection device for an environmental test chamber, which comprises a shooting mechanism, a rotating mechanism and a driving mechanism, and is characterized in that the rotating mechanism comprises a rotating ring and a fixing mechanism, and the shooting mechanism is arranged on the rotating ring; the fixing mechanisms are arranged in the rotating ring and distributed at the two ends of the rotating ring, and the fixing mechanisms are used for fixing a 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 in the y-axis direction so as to drive the shooting mechanism to rotate around a measured object for observation; a driving mechanism, a rotating mechanism and a shooting mechanism are arranged in a test box, the shooting mechanism is connected with the rotating mechanism, a tested object is arranged in the rotating mechanism, and the driving mechanism drives the rotating mechanism, so that the shooting mechanism carries out 360-degree dead-corner-free shooting around the object, and the dynamic change process of the tested object in the test box is conveniently recorded; the structure principle is simple, the observation effect is good, the rear-end image processing mode is simple, and the observation cost of a measured object can be remarkably reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of object detection in environmental test chambers, and particularly relates to an object state detection device for an environmental test chamber. Background Art

[0002] With the continuous improvement of modern industrial manufacturing levels, many products, especially components and complete 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 becomes crucial to accurately detect the state, position, and whether there are abnormalities of the tested object placed in the test chamber. For example, detecting whether the product has displacement, deformation, damage, etc. during the test, and detecting the objects inside it to better evaluate the test results and ensure the effectiveness of the test; however, the test process of environmental test chambers often lasts for a long time and involves changes in various environmental parameters; traditional manual monitoring methods have many limitations, such as being difficult to observe continuously in real time, prone to observation errors, and inaccurate and untimely data recording.

[0003] In recent years, sensor technology, machine vision technology, image processing technology, etc. have been continuously developed and matured. High-precision photoelectric sensors can accurately sense the position changes of objects, and advanced machine vision systems can clearly capture the appearance details of objects in the test chamber and judge whether there are damages, etc. through image analysis; but in an environmental test chamber, if you want to continuously observe the detected object in a 360° surround without interfering with the object to be measured, in the prior art, it is usually to observe the object through multiple cameras, but it is difficult to plan and set up more cameras in the chamber, and a more powerful upper computer is required to process and analyze the data of multiple cameras to draw an observation conclusion; and it is necessary to consider the high and low temperature tolerance of the shooting cameras in the test chamber, and the cameras need to be protected, with a complex structure and high later maintenance costs. Summary of the Invention

[0004] The purpose of the present invention is to provide an object state detection device for an environmental test chamber. By setting a driving mechanism, a rotating mechanism, and a shooting mechanism in the test chamber, the shooting mechanism is connected to the rotating mechanism, and the object is arranged in the rotating mechanism. The driving mechanism drives the rotating mechanism to enable the shooting mechanism to perform 360° non-blind-angle shooting around the object, so as to record the dynamic change process of the object in the test chamber.

[0005] The present invention is realized through the following technical solutions: An object state detection device for an environmental test chamber, comprising a photographing mechanism, a rotating mechanism and a driving mechanism. The rotating mechanism includes a rotating ring and a fixing mechanism. The photographing mechanism is arranged on the rotating ring. The fixing mechanism is arranged inside the rotating ring and distributed at both ends of the rotating ring. The fixing mechanism is used to fix the object to be measured inside the rotating ring. The rotating ring is arranged on the driving mechanism, and the driving mechanism is used to drive the rotating ring to rotate 360° along the y-axis direction to drive the photographing mechanism to rotate around the object to be measured for observation.

[0006] Further, the driving mechanism includes a base and a driving component. The driving component is arranged on the base. The driving component includes a protective shell, a first driving motor, a worm gear, a worm and a rotating rod. The worm gear and the worm are meshed and connected inside the protective shell. The first driving motor is connected with the worm inside 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 to the side surface of the worm gear. The end of the rotating rod extends out of the protective shell and is fixedly connected to the rotating ring.

[0007] Further, the fixing mechanism includes a first fixing component, a second fixing component and a steel cable component. The first fixing component is arranged close to the driving mechanism. The second fixing component is arranged opposite to and coaxially with the first fixing component. The steel cable component is connected with the first fixing component and the second fixing component. The steel cable component fixes the object to be detected in the middle of the rotating ring.

[0008] Further, the first fixing component includes a first connecting piece and a first bearing. The rotating rod is of a cylindrical structure. The first bearing is arranged inside the rotating rod. The first connecting piece sequentially passes through the rotating ring, the rotating rod, the first bearing, the worm gear and the protective shell and is fixedly connected to the base.

[0009] Further, the second fixing component includes a second connecting piece and a second bearing. The second bearing is arranged on the rotating ring and fixedly connected to the rotating ring. The second connecting piece is in plug-in fit and rotational connection with the second bearing. A limiting cap is arranged on the second connecting piece. The limiting cap is threadedly connected to the second connecting piece at the top of the rotating ring. The bottom of the limiting cap is of a hemispherical structure. The limiting cap is located outside the rotating ring and abuts against the second bearing.

[0010] Further, the steel cable component includes a first steel cable group and a second steel cable group. Both the first steel cable group and the second steel cable group include two steel cables. One end of the first steel cable group is connected to the first connecting piece, and the other end is connected to the bottom of the object to be measured. The second steel cable group is connected to the second connecting piece, and the other end is connected to the top of the object to be measured.

[0011] Further, springs are arranged between the ends of the two steel cables of the first steel cable group and the first connecting piece.

[0012] Further, the photographing mechanism includes a second driving motor and a vacuum camera assembly. The vacuum camera assembly is disposed on the second driving motor and located inside the rotating ring. A driving wheel and two limiting wheels are provided 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, enabling the second driving motor to perform reciprocating motion on one side of the rotating ring.

[0013] Further, the vacuum camera assembly includes a housing, a thermal imaging camera, and a temperature control component. The housing is connected to the side of the second driving motor. The housing is a vacuum double-layer structure. A germanium window is provided at the front end of the housing. The lens of the thermal imaging camera is coaxially arranged with the germanium window. A heating ring is provided at the edge of the germanium window inside the housing. The temperature control component is disposed at the rear end of the housing and is used to adjust the temperature inside the housing.

[0014] Further, the temperature control component includes an aerogel interlayer, a microchannel heat exchanger, and a forced circulation blower. The aerogel interlayer is used to seal the bottom of the housing. The end of the microchannel heat exchanger passes through the aerogel interlayer. The forced circulation blower is located inside the housing and is connected to the microchannel heat exchanger.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1) In the present invention, by arranging a driving mechanism, a rotating mechanism, and a photographing mechanism in the test chamber, the photographing mechanism is connected to the rotating mechanism, and the object to be measured is arranged in the rotating mechanism. Through the driving of the rotating mechanism by the driving mechanism, the photographing mechanism performs omnidirectional and dead-angle-free photographing around the object to be measured, so as to record the dynamic change process of the object to be measured in the test chamber. The structural principle is simple, the observation effect is good, and the image processing method at the back end is simple, which can significantly reduce the observation cost of the object to be measured.

[0016] 2) In the present invention, by arranging fixing mechanisms at the upper and lower ends of the rotating ring, the object is fixed in the middle of the rotating ring by using the fixing mechanisms. The fixing mechanisms are relatively stationary with the object to be measured. When the rotating ring rotates, the object to be measured remains stationary, and the camera of the photographing mechanism follows the rotation. At the same time, a spring is provided on the cable assembly of the fixing mechanism. The spring can enable the cable to maintain a relatively constant tension on the object to be measured to adapt to the stress generated by the thermal expansion and contraction of the object to be measured due to high and low temperatures in the test chamber. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0018] Figure 1 This is a schematic structural diagram of the object state detection device in the present invention.

[0019] Figure 2 This is the assembly result of the drive mechanism and the first connecting member in the present invention.

[0020] Figure 3 This is a schematic structural diagram of the vacuum camera assembly in the present invention.

[0021] Wherein: 1 - rotating ring, 2 - drive mechanism, 21 - base, 22 - protective shell, 23 - first drive motor, 24 - worm gear, 25 - worm, 26 - rotating rod, 3 - first connecting member, 31 - first bearing, 4 - second connecting member, 41 - limiting cap, 5 - first steel cable group, 6 - second steel cable group, 7 - spring, 8 - second drive motor, 81 - driving wheel, 82 - limiting wheel, 9 - vacuum camera assembly, 91 - housing, 92 - thermal imaging camera, 93 - germanium window, 94 - heating ring, 95 - aerogel interlayer, 96 - microchannel heat exchanger, 97 - forced circulation fan. Specific embodiments

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0023] Embodiment 1: An object state detection device for an environmental test chamber, as Figure 1 and Figure 2As shown in the figure, it includes a photographing mechanism, a rotating mechanism, and a driving mechanism 2. The rotating mechanism includes a rotating ring 1 and a fixing mechanism. The photographing mechanism is arranged on the rotating ring 1, and the rotating ring 1 is an annular structural member. The fixing mechanism is arranged inside the rotating ring 1 and distributed at both ends of the rotating ring 1. The fixing mechanism is used to fix the object to be measured inside the rotating ring 1. The object to be measured is fixed in the middle of the rotating ring 1. When the rotating ring 1 rotates, the object to be measured remains stationary. The rotating ring 1 is arranged on the driving mechanism 2. The driving mechanism 2 is used to drive the rotating ring 1 to rotate. The rotating ring 1 rotates 360° along the y-axis direction at its connection position with the driving mechanism 2 to drive the photographing mechanism to rotate around the object to be measured for observation. The driving mechanism 2 includes a base 21 and a driving component. The base 21 is a plate-shaped structural member. The base 21 is connected to the bottom of the environmental test chamber and is used to fix the rotating ring 1 and the object to be measured. The driving component is arranged on the base 21. The driving component includes 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 inside the protective shell 22. The first driving motor 23 is connected to the worm inside 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 to the side surface of the worm gear 24. The rotating rod 26 rotates following the worm gear 24. The end of the rotating rod 26 extends out from the protective shell 22 and is fixedly connected to the rotating ring 1. The rotation of the rotating rod 26 drives the rotation of the rotating ring 1, so that the photographing mechanism rotates around the object to be measured.

[0024] Embodiment 2: On the basis of the above embodiment, this embodiment further defines the fixing mechanism, such as Figure 1As shown in the figure, the fixing mechanism includes a first fixing component, a second fixing component and a cable component. The first fixing component is arranged close to the driving mechanism 2. The second fixing component is arranged opposite to and coaxially with the first fixing component. The cable component is connected to the first fixing component and the second fixing component, and the cable component fixes the object to be measured in the middle of the rotating ring 1. The first fixing component includes a first connecting piece 3 and a first bearing 31. The first connecting piece 3 is a rod-shaped structure, and its top end is connected to the cable component. The rotating rod 26 is a cylindrical structure. The first bearing 31 is arranged inside the rotating rod 26. The outer side of the first bearing 31 is connected to the rotating rod 26, and its inner side is connected to the first connecting piece 3. The first connecting piece 3 passes through the rotating ring 1, the rotating rod 26, the first bearing 31, the worm gear 24 and the protective shell 22 in sequence and is fixedly connected to the base 21. When the rotating rod 26 rotates, the rotating ring 1 rotates accordingly, and the first connecting piece 3 remains stationary. The second fixing component includes a second connecting piece 4 and a second bearing. The second bearing is arranged on the rotating ring 1 and is fixedly connected to the rotating ring 1. The outer side of the second bearing is connected to the rotating ring 1, and the inner side of the second bearing is sleeved with the second connecting piece 4. The second connecting piece 4 is connected to the second bearing in an insertion and mating manner. At the same time, a limit cap 41 is arranged on the second connecting piece 4. The bottom of the limit cap 41 is a hemispherical structure. The limit cap 41 is located outside the rotating ring 1 and its bottom abuts against the inner end face of the second bearing. The top of the second connecting piece 4 can pass through the limit cap 41. The limit cap 41 is threadedly connected to the second connecting piece 4. After the second connecting piece 4 is fixed, rotating the limit cap 41 can adjust the tightness of the object to be measured on the rotating ring 1. When the rotating ring 1 rotates, the outside of the second bearing rotates accordingly, and the inside of the second bearing remains stationary with the second connecting piece 4. The cable component includes a first cable group 5 and a second cable group 6. Both the first cable group 5 and the second cable group 6 include two cables. One end of the first cable group 5 is connected to the first connecting piece 3, and the other end is connected to the bottom of the object to be measured. The second cable group 6 is connected to the second connecting piece 4, and the other end is connected to the top of the object to be measured. Springs 7 are arranged between the ends of the two cables of the first cable group 5 and the first connecting piece 3. The springs 7 can make the cables maintain a relatively constant tension on the object to be measured to adapt to the stress generated by the thermal expansion and contraction of the object to be measured due to high and low temperatures in the test chamber. When the object to be measured is installed, rotate the limit cap 41 to tighten and fix the object to be measured with the cables. Other parts of this embodiment are the same as those of the above embodiment and will not be elaborated here.

[0025] Embodiment 3: On the basis of the above embodiment, this embodiment further defines the photographing mechanism, such as Figure 1 and Figure 3As shown in the figure, the photographing mechanism includes a second driving motor 8 and a vacuum camera assembly 9. The vacuum camera assembly 9 is arranged on the second driving motor 8 and is located inside the rotating ring 1. A driving wheel 81 and two limiting wheels 82 are arranged on the second driving motor 8. 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, so that the second driving motor 8 makes a reciprocating motion on one side of the rotating ring 1. The running track of the second driving motor 8 is restricted by the first fixing component and the second fixing component, so that it can only make a reciprocating motion on one side of the rotating ring 1. At the same time, the second driving motor 8 can be controlled by an external host computer or a remote controller to stay at any position on one side of the rotating ring 1 or make a reciprocating motion within a range. However, with the rotation of the rotating ring 1, the vacuum camera assembly 9 can take all-round pictures of the object to be measured. The vacuum camera assembly 9 includes a housing 91, a thermal imaging camera 92 and a temperature control component. The housing 91 is connected to the side of the second driving motor 8. The housing 91 is a vacuum double-layer structure. The vacuum-structured housing 91 can physically isolate the environmental temperature of the test chamber and reduce the influence of the external temperature on the thermal imaging camera 92. A germanium window 93 is arranged at the front end of the housing 91. The lens of the thermal imaging camera 92 is coaxially arranged with the germanium window 93. A heating ring 94 is arranged at the edge of the germanium window 93 inside the housing 91. The heating ring 94 heats the germanium window 93 to prevent fog condensation. The temperature control component is arranged at the rear end of the housing 91 and is used to adjust the temperature inside the housing 91. The temperature control component includes an aerogel interlayer 95, a microchannel heat exchanger 96 and a forced circulation fan 97. The aerogel interlayer 95 is used to seal the bottom of the housing 91. The end of the microchannel heat exchanger 96 passes through the aerogel interlayer 95. The forced circulation fan 97 is located inside the housing 91 and is connected to the microchannel heat exchanger 96. The microchannel heat exchanger 96 can heat or cool the temperature inside the housing 91. The forced circulation fan 97 is used for forced heat exchange inside the housing 91 to keep the temperature inside the housing 91 stable. The aerogel interlayer 95 can isolate the transfer of the external temperature of the housing 91. Other parts of this embodiment are the same as those of the above embodiment and will not be described in detail here.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0027] In addition, terms such as "horizontal" and "vertical" in the description of the present invention do not require the components to be absolutely horizontal or hanging vertically, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0028] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, if the terms "set", "installed", "connected", "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0029] The above is only a preferred embodiment of the present invention, and does not impose any formal restrictions on the present invention. Any simple modifications and equivalent changes made to the above embodiments based on the technical essence of the present invention all fall within the protection scope of the present invention.

Claims

1. An object state detection device for an environmental test chamber, characterized in that: It includes a shooting mechanism, a rotating mechanism and a driving mechanism, the rotating mechanism includes 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 distributed at both ends of the rotating ring, the fixing mechanism is used to fix the object to be measured in the rotating ring; the rotating ring is arranged on the driving mechanism, and the driving mechanism is used to drive the rotating ring to rotate 360° along the y-axis direction to drive the shooting mechanism to rotate around the object to be measured for observation.

2. The object state detection device for an environmental test chamber according to claim 1, characterized in that: The driving mechanism includes a base and a driving assembly, the driving assembly is arranged on the base, the driving assembly includes a protective 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 protective shell, the first driving motor is connected to the worm rod in the protective shell and drives the worm wheel to rotate; the rotating rod is arranged on the worm wheel and fixedly connected to the side of the worm wheel, and the end of the rotating rod extends from the protective shell and is fixedly connected to the rotating ring.

3. The object state detection device for an environmental test chamber according to claim 2, characterized in that: The fixing mechanism includes a first fixing component, a second fixing component and a steel cable component. The first fixing component is arranged close to the driving mechanism, the second fixing component is arranged opposite to and coaxially with the first fixing component, the steel cable component is connected to the first fixing component and the second fixing component, and the steel cable component fixes the object to be detected in the middle of the rotating ring.

4. The object state detection device for an environmental test chamber according to claim 3, characterized in that: The first fixing assembly includes a first connecting member and a first bearing. The rotating rod is a cylindrical structure. The first bearing is arranged in the rotating rod. The first connecting member passes through the rotating ring, the rotating rod, the first bearing, the worm gear and the protective shell in sequence and is fixedly connected to the base.

5. The object state detection device for an environmental test chamber according to claim 4, characterized in that: 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 to the rotating ring, the second connecting piece is plug-fitted with the second bearing and rotatably connected; a limiting cap is arranged on the second connecting piece, the limiting cap is threadedly connected to the second connecting piece at the top of the rotating ring, the bottom of the limiting cap is a hemispherical structure, the limiting cap is located on the outside of the rotating ring and abuts against the second bearing.

6. The object state detection device for an environmental test chamber according to claim 5, characterized in that: The steel cable assembly includes a first steel cable group and a second steel cable group, each of which includes two steel cables; one end of the first steel cable group is connected to the first connecting piece, and the other end thereof is connected to the bottom of the object to be measured; the second steel cable group is connected to the second connecting piece, and the other end thereof is connected to the top of the object to be measured.

7. The object state detection device for an environmental test chamber according to claim 6, characterized in that: Springs are arranged between the ends of the two steel cables of the first steel cable group and the first connecting member.

8. The object state detection device for an environmental test chamber according to claim 1, characterized in that: The shooting mechanism includes a second driving motor and a vacuum camera assembly, wherein the vacuum camera assembly is arranged on the second driving motor and located inside the rotating ring; the second driving motor is provided with a moving wheel and two limiting wheels, wherein the moving wheel is located outside the rotating ring, and the two limiting wheels are located inside the rotating ring, and the limiting wheels cooperate with the moving 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.

9. The object state detection device for an environmental test chamber according to claim 8, characterized in that: The vacuum camera assembly includes a shell, a thermal imaging camera and a temperature control assembly, wherein the shell is connected to the side of the second drive 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 arranged coaxially 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 to adjust the temperature inside the shell.

10. The object state detection device for an environmental test chamber according to claim 9, characterized in that: The temperature control component includes an aerogel interlayer, a microchannel heat exchanger and a forced circulation fan. The aerogel interlayer is used to seal the bottom of the shell. The end of the microchannel heat exchanger is arranged through the aerogel interlayer. The forced circulation fan is located in the shell and connected to the microchannel heat exchanger.

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