Air tightness detection device

Abstract

The utility model discloses an air tightness detection device. The air tightness detection device comprises a base, a mobile platform used for bearing and moving a product to be detected, a detection assembly and a vacuum extraction device. The moving platform reciprocates between the preset first area and the preset second area on the base. A height-adjustable accommodating space for accommodating the mobile platform is formed by the vacuum extraction device and the base; the vacuum extraction device and the movable platform form the closed cavity capable of containing the product after the movable platform moves to the containing space, and the closed cavity is vacuumized. According to the air tightness detection device, the vacuumized sealed cavity is subjected to air tightness detection through the detection assembly, air tightness detection can be carried out on products of various specifications, one or more products can be detected at the same time, and the automation level and the detection precision of air tightness detection of the products can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of airtightness detection, and particularly to an airtightness detection device. Background Art

[0002] During the production process of membrane electrode products, there is usually a step of detecting the airtightness of the membrane electrode. Traditional airtightness detection methods include the bubble detection method of immersing the membrane electrode in water, detecting the change of the air composition around the membrane electrode by using a mass spectrometer, etc. The bubble detection method depends on the subjective judgment of the observer and is prone to errors; the mass spectrometry method has high requirements for the detection environmental conditions, has a high use cost, and for products of different specifications, the parameters of the detection device often need to be adjusted. The existing product airtightness detection methods can detect a small number of products each time, and the detection efficiency is low. Content of the Utility Model

[0003] The technical problem solved by the utility model is to provide an airtightness detection device to solve at least one problem mentioned in the above background art in view of the defects existing in the above-mentioned prior art. The specific technical solutions adopted are as follows:

[0004] An airtightness detection device includes a base, a moving platform for carrying and moving the product to be detected, a detection component, and a vacuum extraction device.

[0005] The moving platform is movably connected to the base and reciprocates between a preset first area and a preset second area on the base. The vacuum extraction device is located on one side of the base connected with the moving platform and is connected to the second area of the base; and a height-adjustable accommodation space for accommodating the moving platform is formed between the vacuum extraction device and the base; the vacuum extraction device is used to form a closed cavity capable of accommodating the product with the moving platform after the moving platform moves into the accommodation space, and perform vacuum pumping on the closed cavity. The detection component is connected to the vacuum extraction device or the moving platform and is used to detect the airtightness of the closed cavity after vacuum pumping.

[0006] In some specific embodiments, the vacuum extraction device includes a snap-on cover and a power device connected to each other. The snap-on cover is used to lift and lower in the accommodation space under the drive of the power device, snap onto the moving platform to form a closed cavity, and perform vacuum pumping on the accommodation space.

[0007] In some specific embodiments, the vacuum extraction device includes a support column, a movable column, and a fixed platform. One end of the support column is connected to the base, and the other end is connected to the fixed platform. One end of the movable column is connected to the snap-on cover, and the other end is movably sleeved in the fixed platform; an accommodation space is formed between the snap-on cover and the base. The power device passes through a plurality of fixed platforms and is connected to the snap-on cover to drive the snap-on cover to lift and lower in the accommodation space. In practical applications, the power device may include a servo motor and / or a cylinder.

[0008] In some specific embodiments, grooves for cooperatively placing products to be detected are provided on the mobile platform and / or the fastening cover. In practical applications, by providing grooves on the mobile platform and / or the fastening cover, the products can be positioned more quickly in the mobile platform, which is suitable for mass airtightness detection of a certain specification of products. It should be noted that as long as a sealed cavity can be formed between the fastening cover and the mobile platform, the user can customize the size and position of the grooves according to the actual situation, or choose not to set grooves.

[0009] In a specific embodiment, the mobile platform includes a vacuum adsorption platform. During the airtightness detection process of membrane electrode products, the use of a vacuum adsorption platform can further improve the positioning accuracy and stability of the platform for membrane electrodes.

[0010] In some specific embodiments, the detection component includes a pressure sensing element; the pressure sensing element is connected to the fastening cover and is used to sense the pressure situation in the sealed cavity after vacuum pumping through the fastening cover.

[0011] In some specific embodiments, a product picking and placing device is further included. One end of the product picking and placing device is connected to the base, and the other end is connected to an adsorption platform. The area of the adsorption platform is less than or equal to that of the mobile platform. The adsorption platform is used to move the product between the mobile platform and the outside.

[0012] In some specific embodiments, the product picking and placing device includes a support and a rotating arm assembly. The support is connected to the base; the rotating arm assembly includes a plurality of rotating arms that are rotatably connected in sequence. The rotating arm at one end is rotatably connected to the support, and the rotating arm at the other end is connected to the adsorption platform.

[0013] In some specific embodiments, a bin device is further included; the bin device includes a fixed frame, a bottom plate, a material bearing plate, and a lifting assembly; part or all of the fixed frame is located on the base; the bottom plate is fixedly connected to the bottom of the fixed frame, and the material bearing plate is movably connected in the fixed frame. One or more openings are provided in the bottom plate within the range covered by the projection of the material bearing plate on the bottom plate, and the lifting assembly is provided at a position corresponding to the opening under the bottom plate. The lifting assembly is used to vertically pass through the opening to lift the material bearing plate to adjust the height of the material bearing plate relative to the bottom plate.

[0014] In a specific embodiment, the product picking and placing device can also take out or put down products from the bin device, and the bin device can be used to store products that have been detected or not detected.

[0015] In some specific embodiments, the silo device further includes a driving platform and limiting columns. The driving platform is located below the material bearing plate. A plurality of guiding through slots are evenly arranged on the bottom plate. One ends of a plurality of limiting columns are fixedly connected to the driving platform, and the other ends are located in the guiding through slots. The limiting columns are used to move along the guiding through slots under the drive of the driving platform so as to form bearing areas of different sizes on the material bearing plate. The height of the limiting columns is higher than the plane where the material bearing plate is located. A plurality of limiting columns pass through the material bearing plate through the guiding through slots, and bearing areas are formed on the material bearing plate. Users can place products in the bearing areas. In practical applications, the plurality of guiding through slots may be parallel and / or perpendicular to each other, and the limiting columns can move along the guiding through slots to adjust the size of the bearing area on the material bearing plate.

[0016] In some specific embodiments, an adsorption transfer device is further included. The adsorption transfer device includes a first moving mechanism, a second moving mechanism, and an adsorbing member. In practical applications, when performing airtightness detection on membrane electrode products, the silo device can be used to store membrane electrode products that have not undergone airtightness detection. By stacking isolation papers on the membrane electrode products, friction and damage between the membrane electrode products can be reduced while storing a large number of membrane electrode products. At the same time, the adsorbing member of the adsorption transfer device can achieve the paper-separated suction of the membrane electrode products, which can improve the stability and safety of the suction and transfer of the membrane electrode products.

[0017] The first moving mechanism is movably connected to the second moving mechanism and is used to move along a preset first direction on the second moving mechanism. The first moving mechanism extends along a preset second direction; there is an included angle between the second direction and the first direction; the adsorbing member is movably and liftably connected to the first moving mechanism and is used to move under the drive of the first moving mechanism to take out or put down products from the silo device, and the moving range of the adsorbing member covers the silo device.

[0018] In practical applications, the area of the silo device can be much larger than the area that the product picking and placing device can contact, so as to be able to carry a larger number of products. In a specific embodiment, it is necessary for the product picking and placing device to take out products from the silo. When the product picking and placing device has taken out the products in the silo device that it can contact, the adsorption transfer device can adsorb and move the products that the product picking and placing device cannot contact to the position in the silo device that the product picking and placing device can contact. Thus, it can be realized that when the volume of the silo device is large and as many products as possible are stored in the silo device, while the activity area of the product picking and placing device is small, the product picking and placing device can still maintain the action of continuously taking out or placing products from the silo device.

[0019] When multiple layers of membrane electrode products are carried on the separator paper in the bin device, the lifting assembly in the bin device can lift the material carrying plate upward after the adsorption transfer device or the product picking and placing device sucks and transfers each layer of membrane electrode products away from the bin device, so that the material carrying plate drives the membrane electrode products carried thereon to lift by a distance equal to the thickness of one layer of membrane electrode products; it can also be that when the adsorption transfer device or the product picking and placing device moves the membrane electrode products from the outside to the material carrying plate, the lifting assembly descends, further driving the material carrying plate to drive the membrane electrode products carried thereon to move downward by a distance equal to the thickness of one layer of membrane electrode products. Beneficial effects: The present application proposes a hermeticity detection device. By making the moving platform reciprocate between a preset first area and a preset second area on the base, making the vacuum extraction device evacuate the sealed cavity formed with the moving platform after the moving platform moves into the accommodation space, and then detecting the hermeticity of the sealed cavity after the evacuation treatment through the detection component, it can quickly realize the hermeticity detection of various specifications of products, especially membrane electrode products, can detect single or multiple products simultaneously, and can improve the automation level and detection accuracy of the hermeticity detection of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention 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 following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a three-dimensional structure schematic diagram of the present invention.

[0022] Figure 2 It is another three-dimensional structure schematic diagram of the present invention.

[0023] Figure 3 It is a three-dimensional structure schematic diagram of the vacuum extraction device of the present invention;

[0024] Figure 4 It is a three-dimensional structure schematic diagram of the product picking and placing device of the present invention;

[0025] Figure 5 It is a three-dimensional structure schematic diagram of the bin device of the present invention;

[0026] Figure 6 It is a schematic diagram of the relative positions of the bin device and the adsorption transfer device of the present invention;

[0027] Figure 7 It is a three-dimensional structure schematic diagram of the lifting device of the present invention;

[0028] Figure 8 This is a three-dimensional structural schematic diagram of the driving platform of the present utility model;

[0029] Figure 9 This is a schematic diagram of a relative positional relationship between a first region and a second region in the present utility model.

[0030] The reference numerals and names in the figure are as follows: 1 - base; 2 - moving platform; 3 - detection component; 4 - vacuum extraction device; 41 - fastening cover; 42 - power device; 43 - support column; 44 - movable column; 45 - fixed table; 5 - product picking and placing device; 51 - adsorption table; 52 - support; 53 - rotating arm assembly; 6 - silo device; 61 - fixed frame; 62 - bottom plate; 63 - material bearing plate; 64 - lifting assembly; 65 - opening; 66 - driving platform; 67 - limit column; 68 - guiding through groove; 7 - adsorption transfer device; 71 - first moving mechanism; 72 - second moving mechanism; 73 - adsorbent; A - preset first direction; B - preset second direction; C - preset first region; D - preset second region. Detailed implementation manners

[0031] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present utility model in combination with the embodiments and the drawings, so as to fully understand the purpose, features and effects of the present utility model.

[0032] Hereinafter, various embodiments of the present utility model will be described more comprehensively. The present utility model can have various embodiments, and adjustments and changes can be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present utility model to the specific embodiments disclosed herein, but the present utility model should be understood to cover all adjustments, equivalents and / or alternative solutions falling within the spirit and scope of the various embodiments of the present utility model.

[0033] Hereinafter, the term "comprising" or "may comprise" that can be used in various embodiments of the present utility model indicates the presence of the disclosed functions, operations or elements, and does not limit the addition of one or more functions, operations or elements. In addition, as used in various embodiments of the present utility model, the terms "comprising", "having" and their cognates are only intended to indicate specific features, numbers, steps, operations, elements, components or combinations of the foregoing items, and should not be understood to first exclude the existence or addition of one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing items.

[0034] In various embodiments of the present utility model, the expression "or" or "at least one of A or / and B" includes any combination or all combinations of the recited words. For example, the expression "A or B" or "at least one of A or / and B" may include A, may include B, or may include both A and B.

[0035] Expressions used in various embodiments of the present utility model (such as "first", "second", etc.) may modify various components in the various embodiments, but do not limit the corresponding components. For example, the above expressions do not limit the order and / or importance of the components. The above expressions are only for the purpose of distinguishing one component from other components. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of the present utility model, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

[0036] It should be noted that in the present utility model, unless otherwise clearly defined, terms such as "installation", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium; it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] In the present utility model, those of ordinary skill in the art need to understand that the terms indicating orientation or positional relationship in the text are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0038] The terms used in various embodiments of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the various embodiments of the present utility model. As used herein, the singular form is also intended to include the plural form unless the context clearly indicates otherwise. Unless otherwise limited, all terms used herein (including technical terms and scientific terms) have the same meaning as commonly understood by those of ordinary skill in the art to which the various embodiments of the present utility model belong. The terms (such as those defined in a general use dictionary) will be interpreted as having the same meaning as the contextual meaning in the relevant technical field and will not be interpreted as having an idealized meaning or an overly formal meaning unless clearly defined in the various embodiments of the present utility model.

[0039] Embodiment 1

[0040] This embodiment provides an airtightness detection device, which can effectively improve the airtightness detection efficiency of products and detect multiple products of different specifications at the same time, as follows:

[0041] An airtightness detection device includes a base 1, a moving platform 2 for carrying and moving the product to be detected, a detection component 3, and a vacuum extraction device 4.

[0042] As Figure 1 shown, the moving platform 2 is movably connected to the base 1 to reciprocate between a preset first area and a preset second area on the base 1. The vacuum extraction device 4 is located on one side of the base 1 connected to the moving platform 2 and is connected to the second area of the base 1; and a height-adjustable accommodation space for accommodating the moving platform 2 is formed between the vacuum extraction device 4 and the base 1; the vacuum extraction device 4 is used to form a sealed cavity that can accommodate the product with the moving platform 2 after the moving platform 2 moves into the accommodation space, and perform a vacuum pumping process on the sealed cavity. The detection component 3 is connected to the vacuum extraction device 4 or the moving platform 2 for detecting the airtightness of the sealed cavity after the vacuum pumping process. Among them, as Figure 9 shown, the first area is shown as area C in the figure, and the second area is shown as area D in the figure.

[0043] In some specific embodiments, as Figure 3 shown, the vacuum extraction device 4 includes a buckling cover 41 and a power device 42 that are connected to each other. The buckling cover 41 is used to lift and lower in the accommodation space under the drive of the power device 42, buckle with the moving platform 2 to form a sealed cavity, and perform a vacuum pumping process on the accommodation space.

[0044] In some specific embodiments, the vacuum extraction device 4 includes a support column 43, a movable column 44, and a fixed platform 45. Among them, one end of the support column 43 is connected to the base 1, and the other end is connected to the fixed platform 45. One end of the movable column 44 is connected to the buckling cover 41, and the other end is movably sleeved in the fixed platform 45; an accommodation space is formed between the buckling cover 41 and the base 1. The power device 42 passes through a plurality of fixed platforms 45 and is connected to the buckling cover 41 for driving the buckling cover 41 to lift and lower in the accommodation space. In practical applications, the power device 42 may include a servo motor and / or a cylinder.

[0045] In some specific embodiments, the moving platform 2 and / or the fastening cover 41 are provided with grooves for cooperatively placing the product to be detected. In practical applications, by providing grooves on the moving platform 2 and / or the fastening cover 41, the product can be positioned more quickly in the moving platform 2, which is suitable for mass airtightness detection of a certain specification of products. It should be noted that as long as a sealed cavity can be formed between the fastening cover 41 and the moving platform 2, the user can customize the size and position of the groove according to the actual situation, or choose not to set the groove.

[0046] In a specific embodiment, the moving platform 2 includes a vacuum adsorption platform. During the airtightness detection process of the membrane electrode product, the use of the vacuum adsorption platform can further improve the positioning accuracy and stability of the platform for the membrane electrode.

[0047] In some specific embodiments, the detection component 3 includes a pressure sensing element; the pressure sensing element is connected to the fastening cover 41 and is used to sense the pressure condition in the sealed cavity after vacuum pumping through the fastening cover 41.

[0048] In practical applications, the moving platform 2 can move along a moving track. In a specific embodiment, the pressure sensing element can be connected to an external host computer to transmit the obtained airtightness detection data to the external host computer.

[0049] During the process of detecting a membrane electrode product in a specific embodiment, the membrane electrode product to be detected is placed on the moving platform 2. The moving platform 2 moves from the first area on the base 1 to the second area along the moving track until it reaches the accommodation space of the vacuum extraction device 4. The fastening cover 41 in the vacuum extraction device 4 descends and forms a sealed cavity with the moving platform 2, and the membrane electrode product to be detected is located in the sealed cavity. At this time, the vacuum extraction device 4 further extracts the gas in the sealed cavity through the fastening cover 41 to make the sealed cavity a vacuum cavity. Further, the pressure sensing element connected to the fastening cover 41 detects the air pressure in the sealed cavity through the fastening cover 41 to further obtain the airtightness detection result of the membrane electrode product. In practical applications, there can be multiple moving platforms 2, and the multiple moving platforms 2 can move from the first area to the second area in different directions along different moving tracks respectively.

[0050] In some specific embodiments, a product picking and placing device 5 is further included, such as Figure 2 and Figure 4As shown. One end of the product picking and placing device 5 is connected to the base 1, and the other end is connected with a suction table 51. The area of the suction table 51 is less than or equal to that of the moving platform 2. The suction table 51 is used to move the product between the moving platform 2 and the outside. In a specific embodiment, the area of the suction table 51 is less than that of the moving platform 2, and multiple products can be taken out or placed down from the outside at one time, which can increase the number of products for airtightness detection each time and further improve the processing efficiency.

[0051] In some specific embodiments, the product picking and placing device 5 includes a support 52 and a rotating arm assembly 53. The support 52 is connected to the base 1; the rotating arm assembly 53 includes a plurality of rotating arms that are rotatably connected in sequence. The rotating arm at one end is rotatably connected to the support 52, and the rotating arm at the other end is connected to the suction table 51.

[0052] In some specific embodiments, a bin device 6 is further included, such as Figure 5 and Figure 6 as shown. The bin device 6 includes a fixed frame 61, a bottom plate 62, a material bearing plate 63, and a lifting assembly 64; part or all of the fixed frame 61 is located on the base 1; the bottom plate 62 is fixedly connected to the bottom of the fixed frame 61, and the material bearing plate 63 is movably connected in the fixed frame 61. One or more openings 65 are provided on the bottom plate 62 within the range covered by the projection of the material bearing plate 63 on the bottom plate 62, and the lifting assembly 64 is provided at a position corresponding to the opening 65 under the bottom plate 62. The lifting assembly 64 is used to vertically pass through the opening 65 to lift the material bearing plate 63 to adjust the height of the material bearing plate 63 relative to the bottom plate 62. Among them, the lifting assembly 64 is as Figure 7 shown, and the bottom plate 62 and the opening 65 on the bottom plate 62 are specifically as Figure 8 shown. In practical applications, the vacuum extraction device 4 is located in the first area on the base 1. The product picking and placing device 5 can be connected in the first area on the base, and the bin device can be wholly or partly connected in the first area of the base 1. On the base 1, the first area can be the area on the base 1 except for the second area, or can be a partial area on the base 1 except for the second area.

[0053] In a specific embodiment, the product picking and placing device 5 can also take out or place down products from the bin device 6, and the bin device 6 can be used to store products that have been tested or not tested.

[0054] In some specific embodiments, the silo device 6 further includes a driving platform 66 and a limiting column 67. The driving platform 66 is located below the material bearing plate 63. A plurality of guiding through slots 68 are evenly arranged on the bottom plate 62. One end of each of the plurality of limiting columns 67 is fixedly connected to the driving platform 66, and the other end is located in the guiding through slots 68. The limiting column 67 is configured to move along the guiding through slots 68 under the drive of the driving platform 66, so as to form bearing areas of different sizes on the material bearing plate 63. In a specific embodiment, the driving platform 66 includes a cylinder and / or an electrode for driving the movement of the limiting column 67. The height of the limiting column 67 is higher than the plane where the material bearing plate 63 is located. The plurality of limiting columns 67 pass through the material bearing plate 63 through the guiding through slots 68, and bearing areas are formed on the material bearing plate 63, and a user can place products in the bearing areas. In practical applications, the plurality of guiding through slots 68 may be parallel and / or perpendicular to each other, and the limiting column 67 can move along the guiding through slots 68 to adjust the size of the bearing area on the material bearing plate 63.

[0055] In some specific embodiments, an adsorption transfer device 7 is further included, such as Figure 6 shown. The adsorption transfer device 7 includes a first moving mechanism 71, a second moving mechanism 72, and an adsorbent 73. In practical applications, when performing airtightness detection on membrane electrode products, the silo device 6 can be used to store membrane electrode products that have not undergone airtightness detection. By stacking isolation papers on the membrane electrode products, friction and damage between the membrane electrode products can be reduced while storing a large number of membrane electrode products. At the same time, the adsorbent 73 of the adsorption transfer device 7 can achieve the isolation paper suction of the membrane electrode products, which can improve the stability and safety of the suction and transfer of the membrane electrode products.

[0056] The first moving mechanism 71 is movably connected to the second moving mechanism 72 and is configured to move along a preset first direction on the second moving mechanism 72. The first moving mechanism 71 extends along a preset second direction; there is an included angle between the second direction and the first direction; the adsorbent 73 is movably and liftably connected to the first moving mechanism 71 and is configured to move under the drive of the first moving mechanism 71 to take out or put down products from the silo device 6, and the moving range of the adsorbent 73 covers the silo device 6. Among them, the preset first direction is as shown by direction A in Figure 6 and the preset second direction is as shown by direction B in Figure 6 . The first direction and the second direction may be perpendicular to each other.

[0057] In practical applications, the area of the bin device 6 can be much larger than the area that the product picking and placing device 5 can reach, so as to be able to carry a larger number of products. In a specific embodiment, it is necessary for the product picking and placing device 5 to pick products from the bin. When the product picking and placing device 5 has picked out the products in the bin device 6 that it can reach, the adsorption and transfer device 7 can adsorb and move the products that the product picking and placing device 5 cannot reach to the position in the bin device 6 that the product picking and placing device 5 can reach. Thus, it can be realized that when the volume of the bin device 6 is large and as many products as possible are stored in the bin device 6, while the moving area of the product picking and placing device 5 is small, the product picking and placing device 5 can still continuously pick out or place products from the bin device 6.

[0058] When multiple layers of membrane electrode products are carried on the separator paper in the bin device 6, the lifting assembly 64 in the bin device 6 can lift the material carrying plate 63 upward after the adsorption and transfer device 7 or the product picking and placing device 5 sucks and transfers each layer of membrane electrode products away from the bin device 6, so that the material carrying plate 63 drives the membrane electrode products carried thereon to lift by a distance equal to the thickness of one layer of membrane electrode products; it can also be that when the adsorption and transfer device 7 or the product picking and placing device 5 moves the membrane electrode products from the outside to the material carrying plate 63, the lifting assembly 64 descends, further driving the material carrying plate 63 to drive the membrane electrode products carried thereon to move downward by a distance equal to the thickness of one layer of membrane electrode products. This embodiment proposes an airtightness detection device. By making the moving platform drive the product to be detected to reciprocate between a preset first area and a preset second area on the base, making the vacuum extraction device perform vacuum pumping on the sealed cavity formed with the moving platform after the moving platform moves into the accommodation space, and then detecting the airtightness of the sealed cavity after the vacuum pumping process through the detection component, it can quickly realize the airtightness detection of various specifications of products, especially membrane electrode products, can detect single or multiple products simultaneously, and can improve the automation level and detection accuracy of the airtightness detection of membrane electrodes.

[0059] The above is a specific description of the preferred embodiment of the present invention, but the creation of the present invention is not limited to the embodiment. Those skilled in the art can also make various equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An airtightness detection device, characterized in that: It includes a base, a mobile platform for carrying and moving the product to be tested, a testing component and a vacuum extraction device; The mobile platform is movably connected to the base to reciprocate between a preset first area and a preset second area on the base; The vacuum extraction device is located at a side of the base connected to the mobile platform, and is connected to the second area of ​​the base; and the vacuum extraction device and the base form a height-adjustable accommodation space for accommodating the mobile platform; the vacuum extraction device is used to form a closed cavity for accommodating products with the mobile platform after the mobile platform moves to the accommodation space, and perform vacuum treatment on the closed cavity; The detection component is connected to the vacuum extraction device or the mobile platform, and is used to perform airtightness detection on the closed cavity after vacuum treatment.

2. The airtightness detection device according to claim 1, characterized in that: The vacuum extraction device comprises a snap-on cover and a power device connected to each other; The buckled cover is used to rise and fall in the accommodating space under the drive of the power device, buckle with the moving platform to form the closed cavity, and perform vacuum treatment on the accommodating space.

3. The airtightness detection device according to claim 2, characterized in that: The vacuum extraction device comprises a supporting column, a movable column and a fixed platform; One end of the support column is connected to the base, and the other end is connected to the fixed platform; one end of the movable column is connected to the buckle cover, and the other end is movably sleeved in the fixed platform; The accommodating space is formed between the snap-fit ​​cover and the base; The power device is connected to the snap-on cover through a plurality of fixing platforms, and is used for driving the snap-on cover to rise and fall in the accommodating space.

4. The airtightness detection device according to claim 2, characterized in that: The movable platform and / or the snap-fit ​​cover are provided with grooves for cooperating in placing the product to be inspected.

5. The airtightness detection device according to claim 2, characterized in that: The detection component includes a pressure sensor; the pressure sensor is connected to the snap-fit ​​cover and is used to sense the pressure condition in the closed cavity after the vacuum treatment through the snap-fit ​​cover.

6. The airtightness detection device according to claim 1, characterized in that: It also includes a product picking and placing device, one end of which is connected to the base, and the other end is connected to an adsorption platform, the area of ​​the adsorption platform is less than or equal to the mobile platform, and the adsorption platform is used to move the product between the mobile platform and the outside world.

7. The airtightness detection device according to claim 6, characterized in that: The product placement device includes a support and a rotating arm assembly; The support is connected to the base; the rotating arm assembly includes a plurality of rotating arms which are rotatably connected in sequence, wherein the rotating arm at one end is rotatably connected to the support, and the rotating arm at the other end is connected to the adsorption platform.

8. The airtightness detection device according to claim 1, characterized in that: It also includes a silo device; the silo device includes a fixed frame, a bottom plate, a material carrying plate and a jacking assembly; The fixed frame is partially or entirely located on the base; the bottom plate is fixedly connected to the bottom of the fixed frame, and the material carrying plate is movably connected to the fixed frame; The bottom plate is provided with one or more openings within the range covered by the projection of the material carrying plate on the bottom plate, and the lifting assembly is arranged at a position corresponding to the opening under the bottom plate; The lifting assembly is used to pass through the opening in a vertical direction to lift the material carrying plate to adjust the height of the material carrying plate relative to the bottom plate.

9. The airtightness detection device according to claim 8, characterized in that: The silo device also includes a driving platform and a limiting column, wherein the driving platform is located below the material carrying plate, and a plurality of guide slots are evenly arranged on the bottom plate, and one end of the plurality of limiting columns is fixedly connected to the driving platform, and the other end is located in the guide slot; The limiting column is used to move along the guide groove under the drive of the driving platform to form bearing areas of different sizes on the material bearing plate.

10. The airtightness detection device according to claim 8, characterized in that: It also includes an adsorption transfer device, which includes a first moving mechanism, a second moving mechanism and an adsorption member; The first moving mechanism is movably connected to the second moving mechanism, and is used to move along a preset first direction on the second moving mechanism; The first moving mechanism extends along a preset second direction; There is an angle between the second direction and the first direction; The adsorption member is movably and liftably connected to the first moving mechanism, and is used to move under the drive of the first moving mechanism to take out or put down the product from the silo device. The moving range of the adsorption member covers the silo device.

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