Plug valve detection apparatus and method

Abstract

The application discloses a valve insertion detection device, which comprises a connecting plate for connecting a mobile device, a detection rod capable of sliding up and down relative to the connecting plate, and a sensing device for detecting the displacement of the detection rod relative to the sensing device in the up-down direction. The valve insertion detection device can effectively improve the detection accuracy and increase the service life of the detection device. The application also provides a valve insertion detection method.

Description

Technical Field

[0001] The present invention relates to the field of lithium battery capacity conversion, and in particular to a plug valve detection device and method. Background Art

[0002] In the current lithium battery capacity conversion process, the converted batteries need to be transported along the conveyor line to the battery safety valve insertion station, and the safety valve is inserted into the battery's injection hole to prevent the high-temperature and chemically active electrolyte in the battery from evaporating into the air and causing air pollution.

[0003] In the existing safety valve insertion process, the main detection work after the valve insertion is completed relies on the shooting optical fiber. Since the electrolyte inside the battery is relatively active, it is easy to evaporate and stick to the shooting optical fiber, which not only affects the detection accuracy of the shooting optical fiber and increases the false detection rate, but also corrodes the shooting optical fiber and shortens its life. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a plug valve detection device that improves detection accuracy and increases the service life of the detection device.

[0005] The plug valve detection device of the present invention comprises: a connecting plate for docking with a moving device; a detection rod capable of sliding up and down relative to the connecting plate; and a sensing device for detecting the displacement of the detection rod relative to the sensing device in the up and down directions.

[0006] Furthermore, a lifting drive device is provided on the connecting plate, the lifting drive device is drivingly connected to the sensing device, the detection rod is slidingly connected to the sensing device, and the detection rod can slide up and down relative to the sensing device.

[0007] Furthermore, the lifting drive device includes a detection cylinder arranged on the connecting plate, the detection cylinder is driven and connected to a second connecting rod, and the second connecting rod is connected to the detection device.

[0008] Furthermore, a linear bearing is provided on the connecting plate, and the detection rod can be slidably connected to the connecting plate through the linear bearing.

[0009] Furthermore, a buffer spring is connected between the detection rod and the detection device.

[0010] Furthermore, the sensing device includes a sensor arranged on the connecting plate, a detection block is arranged on the detection rod, and the sensor can detect the displacement of the detection block relative to the sensor.

[0011] Furthermore, the connecting plate is provided with two detection rods and two sensing devices along the front-to-back direction, and the two sensing devices can detect the displacement of the two detection rods relative to the sensing devices along the up-down direction in a one-to-one correspondence.

[0012] Furthermore, the connecting plate is provided with two lifting drive devices along the front-rear direction.

[0013] The present invention also provides a plug-in valve detection method, which uses the above-mentioned plug-in valve detection device and includes the following steps: a positioning step, driving the connecting plate so that the detection rod is located directly above the position of the plug-in valve to be detected; a detection step, when the detection rod is located directly above the position of the plug-in valve to be detected, controlling the detection rod to descend a specified distance; when the sensing device detects that the detection rod has generated an up and down displacement relative to the sensing device, stopping the detection rod from descending and issuing an alarm signal.

[0014] Furthermore, the detection step also includes: controlling the lifting drive device to drive the sensing device and the detection rod to descend a specified distance together.

[0015] By using the valve insertion detection device of the present invention, after the valve insertion is completed, the connecting plate can be driven to move the detection rod to above the detection position, and then the sensing device and the detection rod can be controlled to descend a specified distance. When the sensing device senses that the detection rod has produced an up and down displacement relative to the detection position, it can be determined that the safety valve is accurately inserted into the injection hole; the entire detection is completed by mechanical components, and there is no need to use a shooting optical fiber, which can effectively reduce the influence of the volatile electrolyte on the detection equipment and improve the accuracy and life of the detection equipment.

[0016] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0018] Figure 1 is an axonometric view of a feeding system according to an embodiment of the present invention;

[0019] Figure 2 is an axonometric view of a feeding device according to an embodiment of the present invention;

[0020] Figure 3 A side view of a feeding device according to an embodiment of the present invention;

[0021] Figure 4 This is an axonometric diagram of a pressing device, a gripping device, and a valve insertion detection device according to an embodiment of the present invention;

[0022] Figure 5 This is a rear view of the pressing device, the gripping device, and the valve insertion detection device according to an embodiment of the present invention;

[0023] Figure 6 for Figure 5The cropped section view in the middle AA direction;

[0024] Figure 7 A cutaway cross-sectional view of another lamination device according to an embodiment of the present invention;

[0025] Figure 8 This is an axonometric diagram of an embodiment of the present invention in which the valve plugging device, the pressing device, the gripping device, and the valve plugging detection device are omitted;

[0026] Figure 9 This is an axonometric view of the valve plug device from another perspective in an embodiment of the present invention;

[0027] Figure 10 A cross-sectional view of a plug valve detection device according to an embodiment of the present invention;

[0028] Figure 11 is a cross-sectional view of a pressing device according to an embodiment of the present invention;

[0029] Figure 12 is a cross-sectional view of a gripping device according to an embodiment of the present invention;

[0030] The above drawings contain the following reference numerals.

[0031]

[0032] DETAILED DESCRIPTION

[0033] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0034] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0035] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] Reference Figure 1-Figure 3 A feeding device 100 according to the first aspect of the present embodiment includes: a base 110; a supporting plate 140, which is arranged on the base 110, and the supporting plate 140 is penetrated with a positioning hole in the up and down directions so that the safety valve can pass through; a first pushing block 132, which is arranged above the supporting plate 140 and is movably connected to the supporting plate 140; the first pushing block 132 is provided with an abutting portion that can abut the safety valve and push the safety valve above the positioning hole; a conveying block 150, which is arranged below the supporting plate 140 and is slidably connected to the base 110, and the conveying block 150 is used to carry the safety valve that falls from the positioning hole.

[0038] When using the feeding device 100 of this embodiment, the safety valve can be transported to the supporting plate 140 through the vibrating guide rail 122, so that the safety valve moves to above the positioning hole, and then the safety valve falls along the positioning hole to the conveying block 150, and the safety valve is transported to the grasping position through the conveying block 150 for grasping by the grasping device 300; since the safety valve is positioned through the positioning hole in the process of falling to the conveying block 150, the position accuracy of the safety valve on the conveying block 150 can be guaranteed; at the same time, the safety valve that falls on the conveying block 150 does not vibrate relative to the conveying block 150, which facilitates the grasping device 300 to accurately position the safety valve.

[0039] Among them, the safety valve can slide into the positioning hole on the supporting plate 140 in a variety of ways, such as tilting the supporting plate 140 so that the safety valve naturally slides into the positioning hole under the action of gravity; or directly aligning the output end of the external vibration guide rail 122 with the positioning hole so that the safety valve can fall into the positioning hole after sliding out of the vibration guide rail 122; the safety valve can also be pushed from the supporting plate 140 to the top of the positioning hole through the ground connection component so that the safety valve can fall into the positioning hole.

[0040] It is understandable that the conveying block 150 can also slide relative to the base 110 in a variety of ways to convey the safety valve to the grasping position, such as by driving the conveying block 150 to slide through a driving component such as a cylinder or a hydraulic cylinder, or by manually driving the conveying block 150 to slide.

[0041] like Figure 2 、 Figure 3As shown, a first push block 132 is provided above the supporting plate 140, and the first push block 132 is movably connected to the supporting plate 140. The first push block 132 is provided with an abutting portion that can abut the safety valve and push the safety valve to above the positioning hole; when feeding, the external vibration guide rail 122 can transport the safety valve to abut against the abutting portion, and then the first push block 132 pushes the safety valve to above the positioning hole, so that the safety valve falls into the positioning hole. When there is no need to feed in a short time, the output end of the vibration guide rail 122 can be blocked by the first push block. At this time, the safety valve on the vibration guide rail 122 will not slide out of the vibration guide rail 122, and there is no need to stop the vibration of the vibration guide rail 122.

[0042] Similarly, the first push block 132 pushes the safety valve to above the positioning hole in a variety of ways, such as by using a cylinder or a hydraulic cylinder to push the first push block 132 so that the first push block 132 slides relative to the supporting plate 140; or by using an electric motor or a hydraulic motor to drive the first push block 132 to rotate relative to the supporting plate 140 to push the safety valve to above the positioning hole.

[0043] Specifically, if Figure 2 As shown, the abutting portion may be a recess provided on the first push block 132 and having a shape matching that of the safety valve.

[0044] Furthermore, if Figure 2 As shown, a pressure valve device 141 is provided above the supporting plate 140, and the pressure valve device 141 can press down relative to the supporting plate 140 and press the safety valve into the positioning hole; when the safety valve moves to above the positioning hole, it is easy to deviate relative to the positioning hole and cause jamming. At this time, the safety valve can slide down from the positioning hole by providing the pressure valve device 141; it can be understood that the pressure valve device 141 can press the safety valve down in a variety of ways, such as by a cylinder or motor provided above the positioning hole to push the piston downward to press the safety valve out of the positioning hole, or by an electromagnet provided below the positioning hole to suck the safety valve downward out of the positioning hole; as long as a force can be applied to the safety valve so that the safety valve can slide downward from the positioning hole, it will be sufficient.

[0045] like Figure 2 As shown, a receiving portion 151 is provided on the conveying block 150, and the receiving portion 151 is used to receive the safety valve dropped from the positioning hole; the receiving portion 151 can ensure the stability of the relative position of the safety valve on the conveying block 150, so that the safety valve can be accurately transported to the grabbing position under the transportation of the conveying block 150.

[0046] like Figure 2 As shown, a first cylinder 131 is provided on the carrying plate 140 , and the first push block 132 can slide back and forth under the drive of the first cylinder 131 .

[0047] Furthermore, a second cylinder 160 is provided on the base 110 , and the second cylinder 160 can drive the conveying block 150 to slide back and forth.

[0048] like Figure 2 As shown, a photoelectric sensor is provided on one side of the sliding direction of the conveying block 150; when the safety valve is stuck in the positioning hole, the photoelectric sensor can sense that there is no safety valve on the conveying block 150, and at this time the feeding device 100 can be controlled to stop working and the on-site staff can be notified to come and handle it; preferably, a reflecting optical fiber can be used as a photoelectric sensor.

[0049] In order to protect the cables connected to the conveying block 150 , a drag chain connected to the conveying block 150 is further provided on the base 110 .

[0050] The second aspect of this embodiment also provides a feeding system, including the above-mentioned feeding device 100, and may also include a conveying device for supplying the safety valve to the feeding device 100, wherein the conveying device can be a vibrating guide rail 122, or a belt conveyor or conveying roller for transporting the safety valve.

[0051] In order to facilitate taking materials from the vibration plate 121 , a vibration guide rail 122 is provided on the base 110 , and the discharge end of the vibration guide rail 122 is opposite to the position of the abutment portion.

[0052] like Figure 3-Figure 5 As shown, the gripping device 300 of the third aspect of this embodiment is characterized in that it includes: a connecting plate 200 for docking the moving device 600; a lifting drive device, which is arranged on the connecting plate 200; and a gripping mechanism, which is driven and connected to the lifting drive device, and the gripping mechanism is used to grip the safety valve.

[0053] When using the grasping device 300 of this embodiment, the connecting plate 200 can be driven to position the grasping device 300 below the battery filling hole, and then the lifting drive device can be controlled to descend so that the safety valve on the grasping mechanism falls above the battery filling hole. During the entire process, only the lifting drive device needs to be used to drive the grasping mechanism, and there is no need to drive the connecting plate 200 to descend, which effectively reduces the situation where other equipment on the connecting plate 200 interferes with the battery during the grasping process.

[0054] like Figure 4 、 Figure 5 As shown, in this embodiment, the connecting plate 200 is integrated with a gripping device 300, a pressing device 400 and a valve plug detection device 500. If the gripping device 300 is raised or lowered by raising or lowering the connecting plate 200, the pressing device 400 and the valve plug detection device 500 may easily collide with the battery.

[0055] Among them, the lifting drive device can drive the grasping mechanism to rise and fall in a variety of ways, such as by driving the grasping mechanism to rise and fall through a cylinder or hydraulic cylinder set on the connecting plate 200, or by driving the grasping mechanism to rise and fall through a linear motor or a motor gear rack mechanism.

[0056] It should be understood that the grasping device 300 can also grasp the safety valve in a variety of ways, such as by gripping the safety valve with a pneumatic clamp connected to the lifting drive device, or by sucking the safety valve with a vacuum suction cup 330 or a vacuum suction nozzle or other devices, or by sucking the safety valve with an electromagnet connected to the lifting drive device.

[0057] Furthermore, if Figure 6 As shown, the lifting drive device includes a grabbing cylinder 310 arranged on the connecting plate 200, and the grabbing cylinder 310 is driven and connected to a grabbing rod 320, and the lower end of the grabbing rod 320 is connected to a grabbing mechanism; wherein, the use of the grabbing rod 320 can ensure that the grabbed safety valve will not collide with the pressing device 400.

[0058] like Figure 6 As shown, the grabbing device 300 includes a vacuum suction cup 330 disposed at the lower end of a grabbing rod 320 .

[0059] Furthermore, in order to facilitate the vacuuming of the vacuum cup 330 and reduce the exposed pipelines outside, an exhaust channel is provided inside the grabbing rod 320, and the exhaust channel is connected to the vacuum cup 330; Figure 6 As shown, the vacuum device can be directly connected to the top of the grabbing rod 320 to reduce the difficulty of running the pipes under the grabbing rod 320.

[0060] In order to enable the grabbing rod 320 to slide up and down stably relative to the connecting plate 200, a linear bearing is provided on the connecting plate 200, and the grabbing rod 320 is slidably connected to the connecting plate 200 through the linear bearing.

[0061] A buffer 312 may be provided between the grabbing rod 320 and the connecting plate 200 to reduce the impact on the connecting plate 200 during grabbing. The buffer 312 is preferably a compression spring.

[0062] like Figure 4 As shown, the connecting plate 200 is provided with two grabbing rods 320 along the front-to-back direction, and a grabbing mechanism is connected below each grabbing rod 320; at this time, the two grabbing mechanisms can be controlled to grab a safety valve respectively, and the safety valves can be placed on the two batteries at the same time.

[0063] Furthermore, in order to achieve independent control of the two grabbing rods 320 , two lifting drive devices are provided on the connecting plate 200 , and the two lifting drive devices are driven to be connected to the two grabbing rods 320 in a one-to-one correspondence.

[0064] refer to Figure 4-Figure 6 The pressing device 400 of the fourth aspect of this embodiment includes: a connecting plate 200, used to dock the moving device 600; a fixed sleeve 420, connected to the connecting plate 200, and the fixed sleeve 420 has a first inner cavity connected to the external air extraction device; a sliding sleeve 450, located in the first inner cavity and slidingly connected to the fixed sleeve 420, the sliding sleeve 450 has a second inner cavity connected to the first inner cavity, and the second inner cavity can be connected to the safety valve; a pressure valve rod 460, partially located in the second inner cavity and connected to the connecting plate 200.

[0065] When using the pressing device 400 of this embodiment, the connecting plate 200 can be controlled to descend so that the sliding sleeve 450 wraps around the safety valve and the lower end of the sliding sleeve 450 abuts the battery. Then, the external vacuum device is controlled to extract the gas in the first inner cavity, so that the volatilized gas of the electrolyte inside the battery passes through the second inner cavity and the first inner cavity in sequence and is extracted. Then, the connecting plate 200 is directly controlled to continue to descend so that the valve pressing rod 460 in the second inner cavity presses the safety valve into the injection hole. The entire pressing process first extracts the gas and then presses the valve, which effectively reduces the bulging of the battery due to volatilization of the electrolyte. At the same time, the valve pressing process is carried out in a vacuum environment, which effectively reduces the possibility of air entering the battery.

[0066] Specifically, after the inside of the battery is vacuumed, there is no need to withdraw the sliding sleeve 450, and the connecting plate 200 can be directly controlled to continue to descend. At this time, the sliding sleeve 450 can slide and rise relative to the fixed sleeve 420, and the tab pressure valve stem 460 descends to abut the safety valve, and presses the safety valve into the battery filling hole. During this process, the sliding sleeve 450 is always in contact with the battery, which can effectively reduce the possibility of external air entering the battery filling hole; at the same time, the entire process only requires controlling the connecting plate 200 to descend, without the need for translation, which effectively simplifies the control of the equipment.

[0067] Furthermore, if Figure 6 As shown, in order to ensure that when the sliding sleeve 450 slides relative to the fixed sleeve 420, external air does not penetrate through the gap between the sliding sleeve 450 and the fixed sleeve 420, thereby ensuring the vacuum degree of the first inner cavity and the second inner cavity, a sealing ring 452 is provided on the sliding sleeve 450. The sealing ring 452 is used to seal the gap between the sliding sleeve 450 and the fixed sleeve 420; Figure 6 As shown, a flange is provided on the upper end of the sliding sleeve 450 , and a sealing ring 452 is sleeved around the flange. The sealing ring 452 abuts against the flange and the inner wall of the fixed sleeve 420 at the same time, so that air does not penetrate from the gap between the sliding sleeve 450 and the fixed sleeve 420 .

[0068] like Figure 6As shown, in order to further prevent air from penetrating from the gap between the sliding sleeve 450 and the battery, a sealing ring 451 can be provided at the lower end of the sliding sleeve 450. When the lower end of the sliding sleeve 450 abuts against the battery, the sealing ring 451 can seal the gap between the sliding sleeve 450 and the battery to ensure the vacuum effect.

[0069] Furthermore, a connecting block 410 is provided on the connecting plate 200 , and the fixing sleeve 420 and the valve pressing rod 460 are both provided on the connecting block 410 .

[0070] like Figure 4 、 Figure 6 As shown, in order to facilitate the connection between the first inner cavity and the external vacuum device and to facilitate vacuuming the first inner cavity and the second inner cavity, a pipe connecting portion 401 is provided on the connecting block 410, and the pipe connecting portion 401 is connected to the first inner cavity; at this time, it is only necessary to connect the pipeline of the vacuuming device to the pipe connecting portion 401 to perform vacuuming operations on the first inner cavity and the second inner cavity.

[0071] like Figure 6 As shown, in order to further prevent air leakage between the sliding sleeve 450 and the fixed sleeve 420 and facilitate the assembly of the sliding sleeve 450 and the fixed sleeve 420 together, a sealing cover 440 is provided at the lower end of the fixed sleeve 420, and the sealing cover 440 and the sliding sleeve 450 are slidably matched, and the sealing cover 440 and the fixed sleeve 420 are detachably connected; during assembly, the sliding sleeve 450 can be first installed in the first inner cavity, and then the sealing cover 440 can be put around the sliding sleeve 450, and finally the sealing cover 440 can be installed at the lower end of the fixed sleeve 420; wherein the sealing cover 440 can be detachably connected to the fixed sleeve 420 by various means such as snaps, threaded fasteners, etc.

[0072] like Figure 6 As shown, a compression spring 430 is provided around the pressure valve rod 460, and the two ends of the compression spring 430 are respectively connected to the connecting plate 200 and the sliding sleeve 450; when the sliding sleeve 450 abuts against the battery, the compression spring 430 can buffer the impact generated by the collision between the sliding sleeve 450 and the battery, thereby preventing the sliding sleeve 450 from being damaged; further, the compression spring 430 can also ensure that the sliding sleeve 450 is in an extended state at normal times. When the connecting plate 200 descends, the sliding sleeve 450 first abuts against the battery, and then the pressure valve rod 460 presses the safety valve into the battery filling hole, thereby preventing the safety valve from being inserted into the filling hole without completing the vacuum process, thereby causing a production accident.

[0073] like Figure 7As shown, the valve pressing rod 460 has a third inner cavity, a grabbing rod 320 is provided in the third inner cavity, and a vacuum suction cup 330 is provided at the lower end of the grabbing rod 320; during the valve insertion process, the vacuum suction cup 330 can be controlled to suck the safety valve, and then the connecting plate 200 can be controlled to make the vacuum suction cup 330 move to above the battery and start to descend, first place the safety valve above the injection hole, and then when the sliding sleeve 450 abuts the battery, the external vacuum device can be controlled to vacuum the first inner cavity, and then the connecting plate 200 can be controlled to continue to descend, so that the valve pressing rod 460 presses the safety valve into the battery injection hole to complete the valve insertion work. The entire process of placing the safety valve and inserting the valve only requires the connecting plate 200 to descend, without the need for translation, effectively saving production time.

[0074] Furthermore, an exhaust channel is provided inside the grabbing rod 320, and the exhaust channel is connected to the vacuum suction cup 330; at this time, vacuum can be directly drawn at the other end of the grabbing rod 320 away from the vacuum suction cup 330 to provide vacuum suction for the vacuum suction cup 330, thereby facilitating grabbing.

[0075] Specifically, if Figure 7 As shown, a base 110 is provided on the connecting plate 200, and a fixing sleeve 420, a pressure valve rod 460 and a grabbing rod 320 are all provided on the base 110. A connecting pipe portion connected to the exhaust channel is provided on the base 110; at this time, an external vacuum device can be connected to the connecting pipe portion to provide suction for the vacuum suction cup 330, further facilitating the arrangement of the pipeline.

[0076] like Figure 6 As shown, the plug valve detection device 500 of the fifth aspect of this embodiment includes: a connecting plate 200, which is used to dock the moving device 600; a detection rod 520, which can slide up and down relative to the connecting plate 200; and a sensing device, which is used to detect the displacement of the detection rod 520 relative to the sensing device in the up and down directions.

[0077] By using the valve insertion detection device 500 of this embodiment, after the valve insertion is completed, the connecting plate 200 can be driven to move the detection rod 520 to above the detection position, and then the sensing device and the detection rod 520 can be controlled to descend a specified distance. When the sensing device senses that the detection rod 520 has produced an up and down displacement relative to the detection position, it can be determined that the safety valve is accurately inserted into the injection hole; the entire detection is completed by mechanical components, and there is no need to use a shooting optical fiber, which can effectively reduce the impact of the volatile electrolyte on the detection equipment and improve the accuracy and life of the detection equipment.

[0078] Among them, the sensing device can sense the displacement of the detection rod 520 relative to the sensing device in a variety of ways. For example, a contact switch is set on the connecting plate 200. When the detection rod 520 is hit during the descent process, the contact switch can be triggered, so that the displacement of the detection rod 520 relative to the connecting plate 200 is detected; a magnetic ring can also be set on the detection rod 520, and a sensor 532 can be set on the connecting plate 200, and the displacement of the magnetic ring can be measured by the sensor 532.

[0079] It can be understood that the above-mentioned specified distance can be flexibly determined according to the battery size and the equipment size. As long as the battery can be normally inserted into the safety valve, the detection rod 520 can touch the safety valve when it descends the specified distance; and if the battery is not correctly inserted into the safety valve, the detection rod 520 cannot touch the safety valve when it descends the specified distance, and the sensing device does not sense the displacement of the detection rod 520. At this time, it can be determined that the valve insertion has failed.

[0080] It should be understood that the process of driving the detection rod 520 and the sensing device to descend can be completed by the moving device 600 driving the connecting plate 200 to descend, or by the lifting drive device provided on the connecting plate 200 driving the sensing device and the detection rod 520 to descend. Figure 6 As shown, a lifting drive device is provided on the connecting plate 200, the lifting drive device is drivingly connected to the sensing device, the detection rod 520 is slidingly connected to the sensing device, and the detection rod 520 can slide up and down relative to the sensing device.

[0081] Among them, in order to be able to set the lifting drive device and the detection rod 520 non-coaxially, facilitate the arrangement of the position of the lifting drive device, and save the space occupied by the equipment, the lifting drive device includes a detection cylinder 510 arranged on the connecting plate 200, and the detection cylinder 510 is driven and connected to the second connecting rod 511, and the second connecting rod 511 is slidably connected to the detection device.

[0082] In order to make the detection rod 520 slide up and down smoothly relative to the connecting plate 200, a linear bearing is provided on the connecting plate 200, and the detection rod 520 can be slidably connected to the connecting plate 200 through the linear bearing.

[0083] like Figure 6 As shown, a buffer spring 540 is connected between the detection rod 520 and the detection device; when the detection rod 520 is hit, the buffer spring 540 can buffer the impact on the detection rod 520, thereby preventing the detection device from being hit too hard and affecting the measurement accuracy; when the detection is completed and the connecting plate 200 rises, the buffer spring 540 can drive the detection rod 520 to automatically return to its initial state, thereby facilitating the next detection.

[0084] In order to further reduce the impact on the sensing device, the sensing device includes a sensor 532 arranged on the connecting plate 200, and a detection block 531 is arranged on the detection rod 520. The sensor 532 can detect the displacement of the detection block 531 relative to the sensor 532; wherein, the sensor 532 determines whether a relative displacement occurs between the detection rod 520 and the sensing device by detecting the displacement of the detection block 531.

[0085] In order to enable the valve plug detection device 500 to detect multiple batteries at the same time, the connecting plate 200 is provided with two detection rods 520 and two sensing devices along the front-to-back direction. The two sensing devices can detect the displacement of the two detection rods 520 relative to the sensing device along the up-down direction in a one-to-one correspondence.

[0086] The connecting plate 200 is provided with two lifting drive devices along the front-rear direction; at this time, the two detection rods 520 can be detected independently.

[0087] This embodiment also provides a valve plug detection method, which uses the above-mentioned valve plug detection device 500 to perform valve plug detection work, including the following steps: a positioning step, driving the connecting plate 200 so that the detection rod 520 is located directly above the position of the valve to be detected; a detection step, when the detection rod 520 is located directly above the position of the valve to be detected, controlling the detection rod 520 to descend a specified distance; when the sensing device detects that the detection rod 520 has generated an upward and downward displacement relative to the sensing device, stopping the detection rod 520 from descending and issuing an alarm signal.

[0088] In order to prevent interference between other devices on the detection board and the battery when the detection rod 520 is controlled to descend through the detection board, the detection step also includes: controlling the lifting drive device to drive the sensing device and the detection rod 520 to descend a specified distance together.

[0089] In the sixth aspect of this embodiment, a valve insertion method is provided, which uses at least the above-mentioned pressing device 400 to perform the valve insertion work, including the following steps: placing the safety valve, placing the safety valve to be inserted above the battery filling hole; moving the component, controlling the movement of the connecting plate 200, so that the sliding sleeve 450 moves to above the filling hole; sealing the filling hole, controlling the sliding sleeve 450 to descend, so that the lower end of the sliding sleeve 450 is sleeved around the safety valve to be inserted and seals the battery filling hole; extracting gas, controlling the external exhaust device, extracting the air in the first inner cavity, so that the electrolyte gas in the battery filling hole passes through the second inner cavity and the first inner cavity in turn to the external exhaust device; pressing the safety valve, controlling the valve rod 460 to descend, and pressing the safety valve to be inserted into the filling hole.

[0090] When inserting the valve using the valve insertion method of this embodiment, the connecting plate 200 can be controlled to descend so that the sliding sleeve 450 wraps around the safety valve and the lower end of the sliding sleeve 450 abuts the battery. Then, the external vacuum device is controlled to extract the gas in the first inner cavity, so that the volatilized gas of the electrolyte inside the battery passes through the second inner cavity and the first inner cavity in sequence and is extracted. Then, the connecting plate 200 is directly controlled to continue to descend so that the valve pressing rod 460 in the second inner cavity presses the safety valve into the injection hole. The entire pressing process first extracts the gas and then presses the valve, which effectively reduces the bulging of the battery due to volatilization of the electrolyte. At the same time, the valve pressing process is carried out in a vacuum environment, which effectively reduces the possibility of air entering the battery.

[0091] Among them, the step of sealing the liquid injection hole includes: controlling the sliding sleeve 450 to descend so that the sealing ring 451 seals the gap between the sliding sleeve 450 and the battery; at this time, the sealing ring 451 can better seal the gap between the sliding sleeve 450 and the battery, further preventing air from infiltrating.

[0092] In the above method, in order to facilitate the arrangement of the pipeline of the exhaust device, the external exhaust device extracts the gas in the first inner cavity through the pipe connection portion 401 provided on the base 110 .

[0093] It is understandable that the safety valve placement step in the valve insertion method can be completed by using the above-mentioned grasping device 300. At this time, the safety valve prevention step is specifically as follows: drive the connecting plate 200 to move the grasping rod 320 in the third inner cavity to above the grasping position, and control the vacuum suction cup 330 to absorb the safety valve to be inserted; after the vacuum suction cup 330 absorbs the safety valve to be inserted, drive the connecting plate 200 to move the grasping rod 320 to above the battery filling hole, and release the suction force of the vacuum suction cup 330.

[0094] Before placing the safety valve, the feeding step can be performed through the above-mentioned feeding device 100 to transport the safety valve to the grabbing position, so that the grabbing device 300 can easily grab it. At this time, the feeding step specifically includes: controlling the first pushing block 132 to push the safety valve above the positioning hole; controlling the conveying block 150 to move to the bottom of the positioning hole, so that the safety valve falls onto the conveying block 150 through the positioning hole; controlling the conveying block 150 to transport the safety valve that falls on the conveying block 150 to the grabbing position.

[0095] Furthermore, in order to improve the accuracy of the safety valve falling position on the positioning hole, the feeding step includes: controlling the conveying block 150 to move below the positioning hole, and controlling the valve pressing device 141 to press down, so that the safety valve falls onto the conveying block 150 through the positioning hole.

[0096] Furthermore, the feeding step includes controlling the second cylinder 160 to drive the conveying block 150 to be transported to below the positioning hole.

[0097] The feeding step further includes: the feeding step includes: controlling the first cylinder 131 to drive the first pushing block 132 to push the safety valve above the positioning hole.

[0098] like Figure 6 As shown, after completing the valve insertion work, it is necessary to use the above-mentioned valve insertion detection device 500 to perform a detection step to detect whether the valve insertion is successful. The above-mentioned valve insertion detection step includes: a positioning step, when the safety valve is pressed into the injection hole, the connecting plate 200 is driven so that the detection rod 520 is located directly above the position of the valve to be detected; a detection step, when the detection rod 520 is located directly above the position of the valve to be detected, the detection rod 520 is controlled to drop a specified distance; when the sensing device detects that the detection rod 520 has generated an up and down displacement relative to the sensing device, the detection rod 520 stops falling and an alarm signal is issued.

[0099] Among them, the above-mentioned detection step also includes: the detection step also includes: controlling the lifting drive device to drive the sensing device and the detection rod 520 to descend a specified distance together; at this time, by driving the lifting drive device to control the detection rod 520 to descend, it can effectively avoid the situation where other devices on the connecting plate 200 interfere with the battery by driving the detection rod 520 to descend by driving the connecting plate 200.

[0100] like Figure 8 、 Figure 9 As shown, the valve insertion device of the seventh aspect of this embodiment includes: a moving device 600; a grasping device 300, the grasping device 300 is used to grasp the safety valve to be inserted; a pressing device 400, the pressing device 400 is used to press the safety valve into the battery filling hole; a valve insertion detection device 500, the valve insertion detection device 500 is used to detect whether the safety valve is successfully inserted into the battery filling hole; the moving device 600 can simultaneously drive the grasping device 300, the pressing device 400 and the valve insertion detection device 500 to move by driving the connecting plate 200.

[0101] When using the valve insertion device of the present invention, the battery can be placed under the mobile device 600, and then the grasping device 300, the pressing device 400 and the valve insertion detection device 500 are moved to the top of the battery in sequence through the mobile device 600, and the battery is subjected to processes such as placing the safety valve, pressing the valve and inserting the valve in sequence; since the corresponding equipment are all integrated on the mobile device 600, there is no need to move the battery during the three processes, and it is only necessary to control the mobile device 600 to move different equipment, which effectively saves the time required to move the battery and the space occupied by the equipment for moving the battery.

[0102] Among them, the moving device 600 can drive the connecting plate 200 to move in a variety of ways, such as by setting a multi-axis manipulator, setting the connecting plate 200 at the end of the manipulator, and driving the connecting plate 200 to move through the multi-axis manipulator; or by setting a multi-axis gantry, driving the connecting plate 200 to move through the movement of the gantry, etc.

[0103] Among them, in order to facilitate the connection plate 200 to move in multiple directions such as front and back, up and down, left and right, the moving device 600 includes: a bracket; a horizontal moving mechanism 610, which is arranged on the bracket and can slide in the left and right direction relative to the bracket; a longitudinal moving mechanism 620, which is arranged on the horizontal moving mechanism 610 and can slide in the front and back direction relative to the horizontal moving mechanism 610; a vertical moving mechanism 630, which is arranged on the horizontal moving mechanism 610 and can slide up and down relative to the horizontal moving mechanism 610; the connection plate 200 is arranged on the vertical moving mechanism 630; the position of the connection plate 200 can be changed by manually adjusting each mechanism, and each moving mechanism can also be driven by setting a driving device.

[0104] Among them, the grasping device 300, the pressing device 400 and the valve insertion detection device 500 can respectively adopt the above-mentioned grasping device 300, the pressing device 400 and the valve insertion detection device 500, or they can adopt the grasping device 300, the pressing device 400 and the valve insertion detection device 500 already in the prior art according to actual needs.

[0105] In order to realize the automatic control of the movement of the connecting plate 200, the moving device 600 also includes a driving mechanism arranged on the bracket, and the driving mechanism is used to drive the horizontal moving mechanism 610, and / or the longitudinal moving mechanism 620 and / or the vertical moving mechanism 630 to slide; wherein, the driving mechanism can control the movement of each moving mechanism through various methods such as multiple motors or multiple cylinders arranged on the bracket.

[0106] It is noted that in Figure 9 In the figure, for the sake of easy observation, the connecting plate 200 and the vertical moving mechanism 630 are shown separately. In actual use, the connecting plate 200 and the vertical moving mechanism 630 are connected.

[0107] like Figure 8 、 Figure 9 As shown, a feeding device 100 is provided below the moving device 600 , and the feeding device 100 is used to transport the safety valve to the grabbing position;

[0108] Furthermore, a vibration guide rail 122 is provided below the moving device 600 , and the feeding device 100 is used to transport the safety valve outputted from the vibration guide rail 122 to the grabbing position.

[0109] In order to facilitate feeding of materials to the vibrating guide rail 122 , a vibrating plate 121 is provided below the moving device 600 , and the vibrating plate 121 is used to provide a safety valve for the vibrating guide rail 122 .

[0110] like Figure 9 As shown, in order to facilitate the valve insertion operation of multiple batteries, a conveying roller 710 can be set under the mobile device 600. Before the valve is inserted, the battery tray 740 loaded with multiple batteries is transported to the bottom of the mobile device 600 by the conveying roller 710, so that the mobile device 600 can drive the connecting plate 200, control the grasping device 300, the pressing device 400 and the valve insertion detection device 500 to perform the entire valve insertion operation.

[0111] Among them, a lifting device 720 is set under the mobile device 600, and the lifting device 720 is used to lift the battery tray 740 transported by the conveyor roller 710; when the battery tray 740 is transported to the designated position, the lifting device 720 can be controlled to lift the battery tray 740 to facilitate valve insertion.

[0112] In order to facilitate the positioning of the batteries after they are lifted, a limiting device 730 is provided above the lifting device 720. When the lifting device 720 lifts the battery tray 740, the limiting device 730 can limit the batteries in the battery tray 740. The limiting device 730 is provided with a plurality of limiting parts that can limit the batteries after the battery tray 740 is lifted. When the battery tray 740 is lifted, the limiting parts can accurately position the plurality of batteries.

[0113] like Figure 9 As shown, the jacking device 720 includes multiple cylinders and jacking brackets arranged under the mobile device 600, and the multiple cylinders are all driven and connected to the jacking brackets; the jacking brackets are used to lift the battery tray 740; at this time, the jacking brackets can ensure that the battery tray 740 is evenly stressed when lifting the battery tray 740, and prevent the battery tray 740 from being overturned due to uneven lifting force when multiple cylinders are used to lift the battery tray 740.

[0114] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the spirit of the present invention.

Claims

1. A plug valve detection device (500), characterized in that: include: A connecting plate (200) for docking with a mobile device (600); A detection rod (520) capable of sliding up and down relative to the connecting plate (200); A sensing device, used for detecting the displacement of the detection rod (520) relative to the sensing device in an up-down direction; A pressing device (400) is integrated on the connecting plate (200), and the pressing device (400) comprises: a fixed sleeve (420) connected to the connecting plate (200), and the fixed sleeve (420) has a first inner cavity connected to an external air extraction device; A sliding sleeve (450) is located in the first inner cavity and is slidably connected to the fixed sleeve (420), wherein the sliding sleeve (450) has a second inner cavity connected to the first inner cavity, and the second inner cavity can be connected to the safety valve; The pressure valve rod (460) is partially located in the second inner cavity and connected to the connecting plate (200). The pressure valve rod (460) has a third inner cavity. A grabbing rod (320) is provided in the third inner cavity. A vacuum suction cup (330) is provided at the lower end of the grabbing rod (320).

2. The plug valve detection device (500) according to claim 1, characterized in that: The connecting plate (200) is provided with a lifting drive device, the lifting drive device is drivingly connected to the sensing device, the detection rod (520) is slidably connected to the sensing device, and the detection rod (520) can slide up and down relative to the sensing device.

3. The plug valve detection device (500) according to claim 2, characterized in that: The lifting drive device comprises a detection cylinder (510) arranged on the connecting plate (200); the detection cylinder (510) is drivingly connected to a second connecting rod (511); and the second connecting rod (511) is connected to the detection device.

4. The plug valve detection device (500) according to claim 3, characterized in that: A linear bearing is provided on the connecting plate (200), and the detecting rod (520) can be slidably connected to the connecting plate (200) via the linear bearing.

5. The plug valve detection device (500) according to claim 3, characterized in that: A buffer spring (540) is connected between the detection rod (520) and the detection device.

6. The plug valve detection device (500) according to claim 1, characterized in that: The sensing device comprises a sensor (532) arranged on the connecting plate (200), a detection block (531) is arranged on the detection rod (520), and the sensor (532) can detect the displacement of the detection block (531) relative to the sensor (532).

7. The plug valve detection device (500) according to claim 1, characterized in that: The connecting plate (200) is provided with two detection rods (520) and two sensing devices along the front-back direction, and the two sensing devices can detect the displacement of the two detection rods (520) relative to the sensing devices along the up-down direction in a one-to-one correspondence.

8. The plug valve detection device (500) according to claim 7, characterized in that: The connecting plate (200) is provided with two lifting drive devices along the front-back direction.

9. A plug valve detection method, using the plug valve detection device (500) according to any one of claims 1 to 8, characterized in that: The steps include: A positioning step, driving the connecting plate (200) so that the detection rod (520) is located directly above the position of the plug valve to be detected; A detection step, when the detection rod (520) is located directly above the position of the plug valve to be detected, controlling the detection rod (520) to descend a specified distance; When the sensing device detects that the detection rod (520) has been displaced in the up and down directions relative to the sensing device, the detection rod (520) stops descending and an alarm signal is issued.

10. The plug valve detection method according to claim 9, characterized in that: The detection step further comprises: controlling the lifting drive device to drive the sensing device and the detection rod (520) to descend together by a specified distance.

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