Air tightness detection device

Abstract

The utility model relates to the technical field of vehicle chassis sealing performance testing, and discloses an air tightness detection device which comprises a roller bed, a first tool, a detector and a first clamping device, the first tool is movably arranged on the roller bed in the first direction, and the first tool is suitable for bearing a battery shell and driving the battery shell to move; the detector is suitable for carrying out air tightness detection on a space defined by the battery shell and the vehicle chassis after the first tool moves to the detection station; the first clamping device comprises a first locking piece and a first driving piece, the first locking piece is arranged at the power output end of the first driving piece, and the first driving piece is configured to drive the first locking piece to move after the first tool moves to the detection station, so that the first locking piece clamps the first tool and limits the first tool to move in the first direction. The technical problem that the vehicle chassis airtightness detection efficiency is low is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle chassis tightness testing, and particularly relates to a tightness detection device. BACKGROUND

[0002] With the maturity and development of new energy automobile technology, the application range of new energy automobiles is also more and more extensive. The new energy automobile usually carries a battery pack, the battery pack is arranged on a vehicle chassis, the battery pack has a lower shell, and the vehicle chassis can serve as an upper shell of the battery pack. In the process of production and manufacturing, since the vehicle chassis can serve as the upper shell of the battery pack, the battery pack does not need to be provided with an upper shell of the battery pack, and therefore it is necessary to detect the tightness of the part of the vehicle chassis corresponding to the installation of the battery pack. However, when detecting the tightness of the vehicle chassis, the corresponding tightness detection device needs to be manually pushed to the lower side of the vehicle chassis for alignment, and the tightness detection efficiency of the vehicle chassis is low. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a tightness detection device, which solves the technical problem of low tightness detection efficiency of the vehicle chassis when detecting the tightness of the vehicle chassis.

[0004] In order to achieve the above purpose, the main technical scheme adopted by the present application comprises:

[0005] The embodiment of the present application provides a tightness detection device, which comprises a roller bed, a first tool, a detector and a first clamping device. In the first direction, the first tool is movably arranged on the roller bed, and the first tool is adapted to carry a battery shell and drive the battery shell to move. The detector is adapted to detect the tightness of the space defined by the battery shell and the vehicle chassis after the first tool moves to the detection station. The first clamping device comprises a first locking member and a first driving member. The first locking member is arranged on the power output end of the first driving member. The first driving member is configured to drive the first locking member to move after the first tool moves to the detection station, so as to clamp the first tool with the first locking member and limit the movement of the first tool in the first direction.

[0006] The tightness detection device is provided in the embodiment of the present application. After the first tool enters the detection position, the first clamping device can automatically limit the position of the first tool in the first direction. Through the roller bed and the movable first tool, the battery shell can be conveniently conveyed to the detection station, greatly improving the automation degree of the detection process, reducing the tediousness of manual operation, significantly improving the detection efficiency and detection accuracy, and making the whole detection process faster and smoother.

[0007] Optionally, the first locking member comprises a first clamping portion and a second clamping portion, at least one of the first clamping portion and the second clamping portion is connected with the power output end of the first driving member to move at least part of the first clamping portion and at least part of the second clamping portion towards or away from each other.

[0008] The movement of the first clamping portion and the second clamping portion towards each other limits the movement of the first tool in the first direction, which can make the clamping action of the first clamping device more stable and reliable, thereby more firmly fixing the first tool, reducing the probability of shaking or displacement during detection, improving the accuracy and safety of the air tightness detection, and improving the air tightness detection efficiency.

[0009] Optionally, the detection device further comprises a first base, the first clamping portion is rotatably arranged on the first base, along the length direction of the first clamping portion, the first clamping portion has a first end and a second end, and the pivot center of the first clamping portion is located between the first end and the second end; the first end is connected with the power output end of the first driving member, and the second end is adapted to clamp the first tool after the first tool moves to the detection station.

[0010] The first clamping portion is rotatably arranged on the first base, and the pivot center thereof is located between the first end and the second end, which enables the first clamping portion to flexibly swing around the pivot center. When the first driving member drives the first end, the first clamping portion can quickly and accurately respond to move the second end and the second clamping portion towards or away from the first tool, thereby clamping or releasing the first tool, and further improving the detection efficiency of the air tightness detection device on the vehicle chassis.

[0011] Optionally, the first clamping portion comprises a first segment and a second segment connected with each other, the first segment and the second segment are angularly connected, the pivot center of the first clamping portion is located at the connection between the first segment and the second segment, and one end of the first segment away from the second segment is configured as the first end, and one end of the second segment away from the first segment is configured as the second end.

[0012] The angular connection of the first segment and the second segment enables the first clamping portion to produce a greater lever effect when subjected to the driving force of the first driving member, and the lengths of the first segment and the second segment can be reasonably configured. When the output force of the first driving member is relatively small, sufficient clamping force can be generated through the lever action of the first clamping portion, thereby firmly fixing the first tool, which not only improves the clamping efficiency, but also helps to reduce the energy consumption and wear of the first driving member.

[0013] Optionally, the second clamping part is rotatably arranged on the first base, and has a third end and a fourth end along a length direction of the second clamping part, a pivot center of the second clamping part is located at the third end, the third end is connected with the power output end of the first driving member, and the fourth end and the second end are adapted to clamp the first tool after the first tool moves to the detection station.

[0014] The fourth end and the second end are adapted to clamp the first tool after the first tool moves to the detection station, which can make the first clamping part and the second clamping part clamp the first tool more firmly, improve the stability and reliability of the air tightness detection device, and make the clamping force more evenly distributed, thereby reducing the probability of failure of the first clamping part and the second clamping part.

[0015] Optionally, the first clamping part is provided with a first gear, a pivot center of the first gear coincides with the pivot center of the first clamping part, and the third end is provided with a second gear, the second gear is engaged with the first gear.

[0016] The first clamping part and the second clamping part are connected by the engagement of the first gear and the second gear, which can disperse the clamping force and enhance the structural strength of the entire clamping mechanism, reduce the risk of damage caused by excessive local stress, and improve the durability and reliability of the detection device.

[0017] Optionally, the detection device further comprises a position sensor and a control center, the control center is in communication connection with the position sensor and the first driving member, and the position sensor is used to detect the position of the first tool, when the position sensor detects that the first tool moves to the detection station, the control center controls the first driving member to drive the first locking member to move, so as to clamp the first tool by the first locking member.

[0018] The position of the first tool in the first direction is locked by automatically detecting the arrival of the first tool at the detection position by the position sensor, and then controlling the first driving member to drive the first locking member to move, which can greatly improve the air tightness detection efficiency and accuracy of the automobile chassis, and reduce the time required by workers to align the position of the vehicle chassis.

[0019] Optionally, the position sensor is configured as an infrared sensor.

[0020] The position sensor is configured as an infrared sensor, which has high sensitivity and high resolution on the one hand, can accurately detect the small displacement or temperature change of the first tool, and ensures that the first tool is accurately placed on the detection station, which helps to improve the accuracy and stability of the air tightness detection, and on the other hand, the infrared sensor is usually small in size, compact in structure, easy to install and integrate into the detection device.

[0021] Optionally, the roller bed further comprises a first roller set and a second roller set, the first roller set and the second roller set are arranged in the second direction and are spaced apart, the first roller set comprises a plurality of first rollers arranged in the first direction and spaced apart, the second roller set comprises a plurality of second rollers arranged in the first direction and spaced apart, the first direction, the second direction and the vertical direction are perpendicular to each other; the first tooling comprises a first frame strip and a second frame strip, the first frame strip and the second frame strip are arranged in the second direction and are spaced apart, the first frame strip is in sliding fit with at least one first roller, and the second frame strip is in sliding fit with at least one second roller.

[0022] The first frame strip is in sliding fit with at least one first roller, and the second frame strip is in sliding fit with at least one second roller, so that the stability and reliability of the first tooling transmission are improved, and the detection efficiency and accuracy of the detection device are improved.

[0023] Optionally, the detection device comprises a first inflation pipeline and a second inflation pipeline, the first inflation pipeline and the second inflation pipeline are both used for inflating the space defined by the battery shell and the vehicle chassis, and the detector is arranged on the first inflation pipeline.

[0024] The first inflation pipeline and the second inflation pipeline are both used for inflating the space defined by the battery shell and the vehicle chassis, and through the inflation of the two inflation pipelines at the same time, the pressure of the air in the space defined by the battery shell and the vehicle chassis can quickly reach the preset pressure value, and the detection efficiency of the detection device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the description of the specific embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0026] Figure 1 The use scene diagram of the air tightness detection device provided by the embodiments of the present application is shown;

[0027] Figure 2 The structural schematic diagram of the first clamping device provided by the embodiments of the present application and in the clamped state is shown;

[0028] Figure 3 The front view of Figure 2 ;

[0029] Figure 4 The structure and position of the first inflation pipeline and the second inflation pipeline are shown;

[0030] Figure 5 The structural schematic diagram of the roller bed provided by the embodiments of the present application is shown.

[0031] [Legend of the drawing]

[0032] Detection device 100;

[0033] Roller bed 110;

[0034] First tooling 120; first frame strip 121; second frame strip 122;

[0035] Battery housing 130;

[0036] First clamping device 140;

[0037] First locking member 150; first clamping portion 151; first end 151A; second end 151B; first section 1510; second section 1511; first gear 1512; second clamping portion 152; third end 152A; fourth end 152B; second gear 1520;

[0038] First driving member 160; power output end 161;

[0039] First base 170;

[0040] Position sensor 180;

[0041] First roller set 190; first roller 191;

[0042] Second roller set 200; second roller 201;

[0043] First longitudinal beam 210; second longitudinal beam 211;

[0044] Third longitudinal beam 220; fourth longitudinal beam 221;

[0045] First inflation pipeline 230;

[0046] Second inflation pipeline 240;

[0047] Detector 250;

[0048] Vehicle chassis 260;

[0049] First direction X; second direction Y; vertical direction Z. DETAILED DESCRIPTION

[0050] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions 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 only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the specification herein is for describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, all terms used in disclosing the application, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms used herein should be interpreted as having a meaning that is consistent with their meaning in the context of this specification and the relevant art and will not be interpreted in an idealized or overly literal sense unless expressly so defined by the patentee.

[0052] Reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is appreciated that the embodiments described herein can be combined with other embodiments.

[0053] In the description of the application, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "attaching" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0054] The term "and / or" in the application is only a description of the association relationship between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can mean that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " in the application generally represents that the front and rear associated objects have an "or" relationship.

[0055] "Multiple" appearing in the application refers to more than two (including two), and similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0056] With the maturity and development of new energy vehicle technology, the application range of new energy vehicles is also more and more extensive. The new energy vehicle usually carries a battery pack, the battery pack is arranged on the vehicle chassis, the battery includes a lower shell, and the vehicle chassis can be used as an upper shell of the battery pack. During the production and manufacturing process, the vehicle chassis needs to be painted and sprayed. Since the battery pack does not need to be provided with an upper shell of the battery pack, the air tightness detection needs to be performed in the painting workshop, and the air tightness detection is performed on the part of the vehicle chassis corresponding to the installation of the battery pack.

[0057] However, the air tightness detection device needs to be manually pushed into position, the battery shell of the air tightness detection device is aligned with the vehicle chassis, and the battery shell is aligned with the screw hole of the vehicle chassis. Since the manual pushing device has insufficient accuracy, it needs to be repeatedly confirmed after being pushed to the position, which does not meet the workshop rhythm requirement, resulting in low production efficiency.

[0058] Therefore, an air tightness detection device is provided in the embodiments of the present application. The air tightness detection device includes a roller bed, a first tool, a detector, and a first clamping device. In a first direction, the first tool is movably arranged on the roller bed, and the first tool is adapted to carry the battery shell and drive the battery shell to move. The detector is adapted to detect the air tightness of the space defined by the battery shell and the vehicle chassis after the first tool moves to a detection station. The first clamping device includes a first locking member and a first driving member. The first locking member is arranged on the power output end of the first driving member. The first driving member is configured to drive the first locking member to move after the first tool moves to the detection station, so that the first locking member clamps the first tool and limits the movement of the first tool in the first direction.

[0059] In the above scheme, after the first tool enters the detection position, the first clamping device can automatically limit the position of the first tool in the first direction. Through the roller bed and the movable first tool, the battery shell can be conveniently conveyed to the detection station, greatly improving the automation degree of the detection process, reducing the tediousness of manual operation, significantly improving the detection efficiency and detection accuracy, and making the entire detection process faster and smoother.

[0060] The following embodiments are described with reference to the air tightness detection device of an embodiment of the present application for convenience of description.

[0061] Please refer to Figures 1 to 4 , Figure 1 the use scenario diagram of the air tightness detection device 100 provided by the embodiments of the present application; Figure 2 the structural schematic diagram of the first clamping device 140 provided by the embodiments of the present application and in the clamped state; Figure 3 the front view of Figure 2 ; Figure 4 the structure and position of the first inflation pipeline 230 and the second inflation pipeline 240 are shown.

[0062] In the embodiment, the air tightness detection device 100 comprises a roller bed 110, a first tooling 120, a detector 250 and a first clamping device 140, the first tooling 120 is movably arranged on the roller bed 110 along a first direction X, the first tooling 120 is adapted to carry the battery shell 130 and drive the battery shell 130 to move, the detector 250 is adapted to detect the air tightness of the space defined by the battery shell 130 and the vehicle chassis 260 after the first tooling 120 moves to a detection station, and the first clamping device 140 comprises a first locking member 150 and a first driving member 160, the first locking member 150 is arranged on a power output end 161 of the first driving member 160, and the first driving member 160 is configured to drive the first locking member 150 to move after the first tooling 120 moves to the detection station, so that the first locking member 150 clamps the first tooling 120 and limits the movement of the first tooling 120 along the first direction X.

[0063] The roller bed 110 is a height-adjustable roller conveying machine, which is driven to operate by a motor. The roller bed 110 can realize the forward and backward movement of the material, and the rollers on the roller bed 110 can ensure the stable transmission of the articles. The first tooling 120 is movably arranged on the roller bed 110, and the first tooling 120 is in contact with the rollers. Along the first direction X, the first tooling 120 can move on the roller bed 110.

[0064] In the embodiment, the battery shell 130 refers to the part enveloping the battery pack and excluding the vehicle chassis 260. The battery shell 130 can also be an inflatable groove or the like. Any structure that can be used to simulate the connection between the battery shell 130 and the vehicle chassis 260 to form a containing space can be used as the battery shell 130 in the embodiment.

[0065] The first tooling 120 carries the battery shell 130, and the first tooling 120 is arranged on the roller bed 110. When the first tooling 120 moves on the roller bed 110 along the first direction X, the battery shell 130 also moves with the first tooling 120. The roller bed 110 can transport the first tooling 120 and the battery shell 130 together to the position below the vehicle chassis 260, that is, the position where the vehicle chassis 260 and the battery shell 130 need to be aligned and installed.

[0066] When the first tooling 120 moves to the detection station, that is, after the first tooling 120 moves to the position below the vehicle chassis 260, the worker can connect the battery shell 130 and the vehicle chassis 260, for example, by using the bolt connection to connect the battery shell 130 and the vehicle chassis 260, and then the detector 250 detects the air tightness of the space defined by the vehicle chassis 260 and the battery shell 130.

[0067] The first clamping device 140 further comprises a first locking member 150 and a first driving member 160. The first driving member 160 can drive the first locking member 150 to move, thereby limiting the movement of the first tooling 120 in the first direction X. For example, when the first tooling 120 moves to the corresponding detection station (at the position where the battery pack shell is installed below the vehicle chassis 260), the first driving member 160 drives the first locking member 150 to lock the first tooling 120, thereby limiting the movement of the first tooling 120 in the first direction X. In this way, the first tooling 120 does not need to be manually pushed to the specified position repeatedly for alignment. After the first tooling 120 enters the detection position, the first clamping device 140 can automatically limit the position of the first tooling 120 in the first direction X. Through the roller bed 110 and the movable first tooling 120, the battery shell 130 can be conveniently transported to the detection station, greatly improving the automation degree of the detection process, reducing the tediousness of manual operation, significantly improving the detection efficiency and detection accuracy, and making the entire detection process faster and smoother.

[0068] In addition, since the first tooling 120 is movably arranged on the roller bed 110, the design of the detection device 100 also has certain flexibility and adaptability. For example, the first tooling 120 can move in the first direction X, which means that it can adjust the position as needed to adapt to different sizes or types of vehicle chassis 260, thereby expanding the application range of the air tightness detection device 100.

[0069] Please refer to Figures 1 to 4 In the present embodiment, the first locking member 150 comprises a first clamping portion 151 and a second clamping portion 152. At least one of the first clamping portion 151 and the second clamping portion 152 is connected with the power output end 161 of the first driving member 160, so as to move at least part of the first clamping portion 151 and at least part of the second clamping portion 152 towards or away from each other.

[0070] The first clamping portion 151 and the second clamping portion 152 are used for limiting and clamping the first tooling 120 in the first direction X. At least one of the first clamping portion 151 and the second clamping portion 152 is connected with the power output end 161 of the first driving member 160, that is, the first clamping portion 151 can be connected with the power output end 161 of the first driving member 160, or the second clamping portion 152 can be connected with the power output end 161 of the first driving member 160, or both the first clamping portion 151 and the second clamping portion 152 can be connected with the power output end 161 of the first driving member 160.

[0071] When the first tool 120 needs to be clamped and positioned, the first clamping part 151 and the second clamping part 152 need to move towards each other so that the first clamping part 151 and the second clamping part 152 clamp the first tool 120. For example, the first tool 120 can be configured as a three-dimensional frame structure, and the first clamping part 151 and the second clamping part 152 can clamp one frame of the first tool 120, so as to fix the position of the first tool 120 in the first direction X.

[0072] When the first tool 120 does not need to be clamped, the first driving member 160 can drive the first clamping part 151 or the second clamping part 152 to move away from each other, so as to separate the first clamping part 151 and the second clamping part 152 and not to limit the position of the first tool 120. When the first tool 120 does not need to be clamped, the first clamping part 151 and the second clamping part 152 need to be moved, and the first clamping part 151 and the second clamping part 152 cannot interfere with the first tool 120 in the first direction X.

[0073] Specifically, by moving the first clamping part 151 and the second clamping part 152 towards each other to limit the movement of the first tool 120 in the first direction X, the clamping action of the first clamping device 140 can be more stable and reliable, so as to more firmly fix the first tool 120, reduce the probability of shaking or displacement during detection, improve the accuracy and safety of the air tightness detection, and improve the air tightness detection efficiency.

[0074] Moreover, since the first clamping part 151 and the second clamping part 152 can move relatively, the first clamping device 140 can adapt to first tools 120 of different sizes and shapes, so that the detection device 100 can be more flexibly applied to detection of vehicle chassis 260 of different models or specifications, improving the versatility of the detection device 100 and expanding the application range of the detection device 100.

[0075] Please refer to Figures 1 to 4 In the embodiment, the detection device 100 further comprises a first base 170, and the first clamping part 151 is rotatably arranged on the first base 170. In the length direction of the first clamping part 151, the first clamping part 151 has a first end 151A and a second end 151B, and the pivot center of the first clamping part 151 is located between the first end 151A and the second end 151B. The first end 151A is connected with the power output end 161 of the first driving member 160, and the second end 151B is adapted to clamp the first tool 120 after the first tool 120 moves to the detection station.

[0076] The first clamping part 151 is arranged on the first base 170 and is rotatable relative to the first base 170, the first end 151A is connected with the power output end 161 of the first driving member 160, and the first driving member 160 can drive the first end 151A to move so that the second end 151B is suitable for clamping the first tooling 120 after the first tooling 120 is moved to the detection station.

[0077] Since the first clamping part 151 is rotatably arranged on the first base 170 and the pivot center is located between the first end 151A and the second end 151B, the first clamping part 151 can flexibly swing around the pivot center, and when the first driving member 160 drives the first end 151A, the first clamping part 151 can quickly and accurately respond to move the second end 151B and the second clamping part 152 towards or away from the first tooling 120, so as to clamp or release the first tooling 120, thereby improving the detection efficiency of the air tightness detection device 100 on the vehicle chassis 260.

[0078] Moreover, since the first clamping part 151 swings around the pivot center, when the first driving member 160 drives the first end 151A, a larger torque can be generated, so that the second end 151B and the second clamping part 152 generate a stronger clamping force, and the first clamping device 140 more firmly fixes the first tooling 120 to prevent it from shaking or moving during the detection process, thereby improving the accuracy and safety of the detection.

[0079] Please refer to Figures 1 to 4 In this embodiment, the first clamping part 151 includes a first segment 1510 and a second segment 1511 connected with each other, the first segment 1510 and the second segment 1511 are angularly connected, the pivot center of the first clamping part 151 is located at the connection between the first segment 1510 and the second segment 1511, and one end of the first segment 1510 away from the second segment 1511 is configured as the first end 151A, and one end of the second segment 1511 away from the first segment 1510 is configured as the second end 151B.

[0080] The angular connection of the first segment 1510 and the second segment 1511 enables the first clamping part 151 to generate a larger lever effect when subjected to the driving force of the first driving member 160, and the lengths of the first segment 1510 and the second segment 1511 can be reasonably configured, so that when the output force of the first driving member 160 is relatively small, sufficient clamping force can be generated through the lever effect of the first clamping part 151, thereby firmly fixing the first tooling 120, which not only improves the clamping efficiency, but also helps to reduce the energy consumption and wear of the first driving member 160.

[0081] Since the first segment 1510 and the second segment 1511 are connected at an angle, the first clamping part 151 can form a more suitable clamping angle when clamping the first tooling 120, and the clamping angle can be adjusted according to the size and shape of the first tooling 120 to ensure the best clamping effect. The optimized clamping angle helps to reduce the shaking and displacement of the first tooling 120 during detection, and improves the accuracy and stability of detection.

[0082] Please refer to Figures 1 to 4 In this embodiment, the second clamping part 152 is rotatably arranged on the first base 170, and has a third end 152A and a fourth end 152B along the length direction of the second clamping part 152. The third end 152A is the pivot center of the second clamping part 152, and is connected with the power output end 161 of the first driving member 160. The fourth end 152B is adapted to clamp the first tooling 120 after the first tooling 120 moves to the detection station together with the second end 151B.

[0083] The second clamping part 152 includes the third end 152A and the fourth end 152B along the length direction of the second clamping part 152. The third end 152A is the pivot center of the second clamping part 152, that is, the fourth end 152B rotates around the second clamping part 152 when the second clamping part 152 moves.

[0084] The fourth end 152B and the second end 151B are adapted to clamp the first tooling 120 after the first tooling 120 moves to the detection station. On the one hand, this can make the first clamping part 151 and the second clamping part 152 clamp the first tooling 120 more firmly, improve the stability and reliability of the air tightness detection device 100, and on the other hand, this can make the clamping force more evenly distributed, and reduce the probability of failure of the first clamping part 151 and the second clamping part 152.

[0085] Please refer to Figures 1 to 4 In this embodiment, the first clamping part 151 is provided with a first gear 1512, the pivot center of the first gear 1512 coincides with the pivot center of the first clamping part 151, the third end 152A is provided with a second gear 1520, and the second gear 1520 is engaged with the first gear 1512.

[0086] Since the first gear 1512 and the second gear 1520 are meshed, according to the characteristics of gear transmission, the transmission ratio between them is constant, when the first driving member 160 drives the first gear 1512 (or the second gear 1520) to rotate, the second gear 1520 (or the first gear 1512) will rotate at a certain speed and direction, thereby ensuring that the first clamping part 151 and the second clamping part 152 can move synchronously and coordinately, moving the second end 151B and the fourth end 152B away from or close to each other, realizing accurate clamping of the first tooling 120, and making the fourth end 152B and the second end 151B more firmly clamp the first tooling 120, thereby improving the detection accuracy and detection efficiency of the air tightness detection device 100.

[0087] By meshing the first gear 1512 and the second gear 1520 to connect the first clamping part 151 and the second clamping part 152, the clamping force can be dispersed and the structural strength of the entire clamping mechanism can be enhanced, reducing the risk of damage caused by excessive local stress, and improving the durability and reliability of the detection device 100.

[0088] Please refer to Figures 1 to 4 In this embodiment, the detection device 100 further comprises a position sensor 180 and a control center, the control center is in communication connection with the position sensor 180 and the first driving member 160 respectively, the position sensor 180 is used to detect the position of the first tooling 120, when the position sensor 180 detects that the first tooling 120 moves to the detection station, the control center controls the first driving member 160 to drive the first locking member 150 to move, so that the first locking member 150 clamps the first tooling 120.

[0089] When the roller bed 110 moves the first tooling 120 to the detection station, the position sensor 180 can detect the position of the first tooling 120. When the position sensor 180 detects that the first tooling 120 reaches the detection station, the position sensor 180 can send a signal to the control center, and after the control center receives the signal, the control center controls the first driving member 160 to drive the first locking member 150 to move, so that the first locking member 150 clamps the first tooling 120, and the first tooling 120 is stationary in the first direction X.

[0090] It can be understood that the detection station is located below the vehicle chassis 260, when the first tooling 120 moves to the detection station, the battery shell 130 cooperates with the lower part of the vehicle chassis 260, at this time the worker can tightly connect the battery shell 130 with the vehicle chassis 260, and then detect the air tightness of the area surrounded by the battery shell 130 and the vehicle chassis 260.

[0091] The position sensor 180 automatically detects the arrival of the first tooling 120 at the detection position, and then controls the first driving member 160 to drive the first locking member 150 to move, thereby locking the position of the first tooling 120 in the first direction X. This automatic control process can greatly improve the efficiency and accuracy of the air tightness detection of the vehicle chassis 260, and reduce the time required for workers to align the position of the vehicle chassis 260.

[0092] Moreover, the high-precision detection capability of the position sensor 180 ensures that the first tooling 120 can be accurately positioned on the detection station. When the first tooling 120 arrives at the detection position, the control center will only issue instructions to start the clamping action, thereby avoiding the risk of clamping failure or damage due to position deviation.

[0093] In addition, through the precise control of the clamping action by the control center, on the one hand, it can avoid the accidental triggering of the clamping mechanism when the first tooling 120 is not fully positioned or positioned incorrectly, thereby protecting the safety of the operators and equipment. On the other hand, the control center can also monitor various parameters during the clamping process, such as clamping force, clamping time, etc., to ensure the safe operation of the entire detection process.

[0094] Please refer to Figures 1 to 4 In this embodiment, the position sensor 180 is configured as an infrared sensor.

[0095] The position sensor 180 is configured as an infrared sensor, which has high sensitivity and high resolution, and can accurately detect the small displacement or temperature change of the first tooling 120, ensuring that the first tooling 120 is accurately placed on the detection station, which helps to improve the accuracy and stability of the air tightness detection. On the other hand, infrared sensors are generally small in size, compact in structure, easy to install and integrate into the detection device 100. In addition, due to the simple and stable working principle of infrared sensors, the maintenance cost is relatively low, which helps to reduce the overall cost and complexity of the detection device 100.

[0096] The infrared sensor has an extremely fast response time, usually only a few milliseconds. This means that when the first tooling 120 arrives at the detection station, the infrared sensor can quickly detect and trigger the control center to issue instructions, achieving immediate clamping action, which can greatly improve the detection efficiency of the air tightness detection device 100.

[0097] Please refer to Figures 1 to 5 , Figure 5A structural schematic diagram of the roller bed 110 is provided in the embodiments of the present application. In the embodiments, the roller bed 110 further comprises a first roller set 190 and a second roller set 200, which are arranged in the second direction Y, the first roller set 190 comprises a plurality of first rollers 191 arranged in the first direction X, the second roller set 200 comprises a plurality of second rollers 201 arranged in the first direction X, and the first direction X, the second direction Y and the vertical direction Z are perpendicular to each other; the first tooling 120 comprises a first frame strip 121 and a second frame strip 122, which are arranged in the second direction Y, the first frame strip 121 is in sliding fit with at least one first roller 191, and the second frame strip 122 is in sliding fit with at least one second roller 201.

[0098] The first tooling 120 is arranged on the roller bed 110, specifically, the first tooling 120 is arranged on the plurality of first rollers 191 and the plurality of second rollers 201, and the first roller set 190 and the second roller set 200 are arranged in the second direction Y, so that the roller bed 110 can more evenly distribute the pressure when bearing the heavy object (the first tooling 120), thereby improving the overall carrying capacity.

[0099] The first tooling 120 further comprises the first frame strip 121 and the second frame strip 122. For example, the first frame strip 121 can be arranged on the plurality of first rollers 191, and the length extension direction of the first frame strip 121 is parallel to the first direction X, and the plurality of first rollers 191 are arranged in the first direction X, so that the first frame strip 121 can be in sliding fit with one first roller 191, two first rollers 191 or a plurality of first rollers 191. Similarly, the second frame strip 122 can also be arranged on the plurality of second rollers 201, and the length extension direction of the second frame strip 122 is parallel to the first direction X, and the plurality of second rollers 201 are arranged in the first direction X, so that the second frame strip 122 can be in sliding fit with one second roller 201, two second rollers 201 or a plurality of second rollers 201.

[0100] Exemplarily, the roller bed 110 can further include a first longitudinal beam 210, a second longitudinal beam 211, a third longitudinal beam 220 and a fourth longitudinal beam 221, which can be sequentially and spacedly arranged along the second direction Y. A plurality of first rollers 191 can be rotatably arranged between the first longitudinal beam 210 and the second longitudinal beam 211 along the second direction Y and do not exceed the first longitudinal beam 210 and the second longitudinal beam 211 in the vertical direction Z. A plurality of second rollers 201 can be arranged between the third longitudinal beam 220 and the fourth longitudinal beam 221 along the second direction Y and do not exceed the third longitudinal beam 220 and the fourth longitudinal beam 221 in the vertical direction Z. Such a design not only enhances the structural stability of the roller bed 110, but also makes the first rollers 191 and the second rollers 201 more stable during rotation, so that the first tooling 120 can be more stably transported to the detection position. Moreover, the first tooling 120 can be stably limited on the roller bed 110 in the second direction Y, thereby improving the stability of the first tooling 120 during transportation.

[0101] Specifically, the first frame strip 121 is in sliding cooperation with at least one first roller 191, and the second frame strip 122 is in sliding cooperation with at least one second roller 201, so as to improve the stability and reliability of the first tooling 120 during transportation, thereby improving the detection efficiency and accuracy of the detection device 100.

[0102] Please refer to Figures 1 to 5 In the embodiment, the detection device 100 includes a first inflation pipeline 230 and a second inflation pipeline 240, both of which are used for inflating the space defined by the battery shell 130 and the vehicle chassis 260. The detector 250 is arranged on the first inflation pipeline 230.

[0103] Both the first inflation pipeline 230 and the second inflation pipeline 240 are used for inflating the space defined by the battery shell 130 and the vehicle chassis 260. By simultaneously inflating the two inflation pipelines, the pressure of the air in the space defined by the battery shell 130 and the vehicle chassis 260 can rapidly reach a preset pressure value, thereby improving the detection efficiency of the detection device 100.

[0104] The detector 250 can be arranged on only one inflation pipeline without the need to arrange multiple inflation pipelines. For example, the detector 250 can be arranged on only the first inflation pipeline 230, so that the structure of the air tightness detection device 100 is simpler and is convenient for maintenance. When the pressure of the air in the space defined by the battery shell 130 and the vehicle chassis 260 reaches the preset pressure value, the detector 250 can detect the air pressure in the space, so as to verify whether the air tightness of the vehicle chassis 260 is qualified.

[0105] It should also be noted that the terms "comprises" and / or "comprising", or "includes" and / or "including" when used in this specification, specify the presence of stated features, integers, steps, operations, elements, or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof. In the context of the specification, the term "and / or" means "and" or "or", and the term "or" means "and" or "or". In the context of the specification, the term "exemplary" means "example" or "an example of".

[0106] Each of the embodiments in the specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other. Each of the embodiments focuses on the difference from other embodiments. In particular, for the system embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the part of the method embodiments.

[0107] The above only describes the embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

[0108] Although the embodiments of the present application are described in conjunction with the drawings, those skilled in the art can make various modifications and changes without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. An air tightness detecting device characterized by comprising: The utility model relates to a battery shell detection device, including: a roller bed; a first tool movably arranged on the roller bed along a first direction, the first tool being adapted to carry and move a battery shell; a detector adapted to detect the air tightness of a space defined by the battery shell and a vehicle chassis after the first tool moves to a detection station; a first clamping device including a first locking member and a first driving member, the first locking member being arranged on a power output end of the first driving member, the first driving member being configured to drive the first locking member to move after the first tool moves to the detection station, so that the first locking member clamps the first tool and restricts the movement of the first tool in the first direction.

2. The detection device of claim 1, wherein, The first locking member includes a first clamping portion and a second clamping portion, at least one of the first clamping portion and the second clamping portion being connected to the power output end of the first driving member, so that at least part of the first clamping portion and at least part of the second clamping portion move towards or away from each other.

3. The detection device of claim 2, wherein, The detection device further includes a first base, the first clamping portion being rotatably arranged on the first base, along the length direction of the first clamping portion, the first clamping portion having a first end and a second end, the pivot center of the first clamping portion being located between the first end and the second end; The first end is connected to the power output end of the first driving member, and the second end is adapted to clamp the first tool after the first tool moves to the detection station.

4. The detection device of claim 3, wherein, The first clamping portion includes a first segment and a second segment connected to each other, the first segment and the second segment being angularly connected, the pivot center of the first clamping portion being located at the connection between the first segment and the second segment, one end of the first segment away from the second segment being configured as the first end, and one end of the second segment away from the first segment being configured as the second end.

5. The detection device of claim 3, wherein, The second clamping portion is rotatably arranged on the first base, along the length direction of the second clamping portion, the second clamping portion having a third end and a fourth end, the pivot center of the second clamping portion being located at the third end, the third end being connected to the power output end of the first driving member, and the fourth end and the second end being adapted to clamp the first tool after the first tool moves to the detection station.

6. The detection device of claim 5, wherein, The first clamping portion is provided with a first gear, the pivot center of the first gear coinciding with the pivot center of the first clamping portion, and the third end is provided with a second gear, the second gear being engaged with the first gear.

7. The detection device of claim 1, wherein, The detection device further includes a position sensor and a control center, the control center being communicatively connected to the position sensor and the first driving member, respectively, the position sensor being used to detect the position of the first tool, and when the position sensor detects that the first tool moves to the detection station, the control center controls the first driving member to drive the first locking member to move, so that the first locking member clamps the first tool.

8. The detection device of claim 7, wherein, The position sensor is configured as an infrared sensor.

9. The detection device of claim 1, wherein, The roller bed further comprises a first roller set and a second roller set, the first roller set and the second roller set are arranged in a second direction, the first roller set comprises a plurality of first rollers arranged in a first direction, the second roller set comprises a plurality of second rollers arranged in the first direction, and the first direction, the second direction and a vertical direction are perpendicular to each other in pairs; The first tooling comprises a first frame strip and a second frame strip, the first frame strip and the second frame strip are arranged in the second direction, the first frame strip is in sliding fit with at least one first roller, and the second frame strip is in sliding fit with at least one second roller.

10. The detection device of claim 1, wherein, The detection device comprises a first inflation pipeline and a second inflation pipeline, the first inflation pipeline and the second inflation pipeline are both used for inflating a space defined by a battery shell and a vehicle chassis, and the detection instrument is arranged on the first inflation pipeline.

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