Lithium battery cover plate airtightness detection device of lithium battery cover plate testing machine

Abstract

A lithium battery cover plate airtightness detection device of a lithium battery cover plate testing machine includes a workbench, a lithium battery cover plate inspection input mechanism, a lithium battery cover plate transfer manipulator left and right displacement driving mechanism, a lithium battery cover plate transfer manipulator, a vacuum mechanism, a mass spectrometer and an electrical controller. The lithium battery cover plate inspection input mechanism is arranged on the right side of the workbench facing upward, the lithium battery cover plate transfer manipulator left and right displacement driving mechanism is fixed to the workbench, the lithium battery cover plate transfer manipulator is arranged on the lithium battery cover plate transfer manipulator left and right displacement driving mechanism, the vacuum mechanism is connected to the mass spectrometer, the mass spectrometer is arranged at the left end of the workbench, and the electrical controller is arranged below the right end of the workbench; the lithium battery cover plate airtightness detection device includes a lithium battery cover plate airtightness alternating detection mechanism. Improve the detection efficiency and meet the requirements of high-efficiency automated production; meet the lithium battery cover plate transfer manipulator as other mechanisms and cooperate with it to reflect good systematization.

Description

Technical Field

[0001] The invention belongs to the technical field of lithium battery component testing devices, and in particular relates to a lithium battery cover plate airtightness detection device of a lithium battery cover plate testing machine. Background Art

[0002] The aforementioned lithium battery mainly refers to, but is not absolutely limited to, lithium batteries used in electric vehicles (also known as "new energy vehicles"). As is known in the industry, a lithium battery consists of a shell, a lithium battery core (composed of multiple positive and negative plates separated by diaphragm insulation) disposed in the shell cavity of the shell, and a cover plate, i.e., a lithium battery cover plate. Because lithium batteries have advantages such as large capacity, light weight, long service life, high energy density, no memory effect, low self-discharge rate, and environmental friendliness, they are highly valued by the industry and widely used in electric vehicles, electric bicycles, and even various hardware tools, etc.

[0003] The aforementioned lithium battery cover is an important part of the structural system of the lithium battery and is widely seen in the public Chinese patent literature, such as CN203721782U (power lithium battery cover), CN203871392U (integrated high-riveted lithium battery cover), CN104466043A (a pole-type lithium battery cover and a pole-type lithium battery using the cover), CN105810857A (a lithium battery upper cover assembly), CN202308090U (pole-type lithium battery cover) and CN102339959A (pole-type lithium battery cover), etc.

[0004] In order to ensure the quality of lithium batteries and reflect their safety during use, it is usually necessary to test the shell, shell cover and lithium battery core. Taking the lithium battery cover as an example, the airtightness requirements are very strict, because if the airtightness is poor, it will directly affect the reliability of new energy electric vehicles.

[0005] In the public Chinese patent documents, technical information on related devices for testing lithium battery components can also be found, such as CN209311004U (a power battery cover air tightness detection device), CN207280669U (cover (i.e. lithium battery cover) pressure testing device), CN101915703B (lithium battery shell pressure test device), CN208721347U (a power battery cover air tightness detection mechanism), CN202693423U (high-precision lithium battery cover explosion test device) and CN206563639U (a power battery cover helium leak detector), etc.

[0006] A typical example is the "device for testing the air tightness of battery cover" recommended by CN213397503U. Although this patent solution can be reflected to a certain extent in the technical effects recorded in paragraph 0020 of its specification, it has the following shortcomings: First, although it can improve efficiency by testing multiple products at the same time, the entire testing device is in a single or simple testing working state during the period of simultaneous testing of multiple products, so its efficiency is still lacking; second, it does not provide any technical inspiration that helps other mechanisms on the lithium battery cover testing machine to coordinate with it to reflect a good system.

[0007] In view of the above-mentioned prior art, it is necessary to make reasonable improvements. For this purpose, the applicant has made useful explorations and designs and formed the technical solutions to be introduced below. Summary of the invention

[0008] The task of the present invention is to provide a lithium battery cover plate airtightness detection device which helps to significantly improve the airtightness detection efficiency to meet the high-efficiency automated production requirements of lithium battery cover plate manufacturers and is conducive to other mechanisms cooperating with it to embody a good systematic lithium battery cover plate testing machine.

[0009] The task of the present invention is accomplished in this way. A lithium battery cover plate airtightness detection device of a lithium battery cover plate testing machine, the lithium battery cover plate testing machine comprises a workbench, a lithium battery cover plate inspection input mechanism, a lithium battery cover plate transfer robot left-right displacement driving mechanism, a lithium battery cover plate transfer robot, a vacuum mechanism, a mass spectrometer and an electrical controller. The lithium battery cover plate inspection input mechanism is arranged on the right end of the workbench facing upward, the lithium battery cover plate transfer robot left-right displacement driving mechanism is fixed to the workbench in a state of being suspended from left to right above the long side direction of the workbench, the lithium battery cover plate transfer robot is arranged on the lithium battery cover plate transfer robot left-right displacement driving mechanism and is transmission-connected to the lithium battery cover plate transfer robot left-right displacement driving mechanism, the vacuum mechanism is arranged on the right end of the workbench facing downward and is connected to the mass spectrometer by a pipeline, and the mass spectrometer is arranged on the workbench at the left end of the workbench, the electrical controller is arranged below the right end of the workbench, the lithium battery cover plate inspection input mechanism, the lithium battery cover plate transfer robot left and right displacement drive mechanism, the lithium battery cover plate transfer robot, the vacuum mechanism and the mass spectrometer are all electrically controlled and connected to the electrical controller; the lithium battery cover plate airtightness detection device includes a lithium battery cover plate airtightness alternating detection mechanism, which is arranged on the workbench at a position located on the left side of the lithium battery cover plate inspection input mechanism and is electrically controlled and connected to the electrical controller, the vacuum mechanism is connected to the lithium battery cover plate airtightness alternating detection mechanism by a pipeline, the lithium battery cover plate transfer robot provides the lithium battery cover plate input by the lithium battery cover plate inspection input mechanism to the lithium battery cover plate airtightness alternating detection mechanism and moves away to the subsequent workstation after the lithium battery cover plate airtightness alternating detection mechanism completes the airtightness detection of the lithium battery cover plate.

[0010] In a specific embodiment of the present invention, the lithium battery cover plate airtightness alternating detection mechanism has a pair corresponding to each other on the left and right, and the pair of lithium battery cover plate airtightness alternating detection mechanisms each include a lithium battery cover plate airtightness detection carrier frame forward and backward displacement driving device, a lithium battery cover plate airtightness detection carrier frame, a detection gas introduction device, an air extraction upper template, an upper template frame and an upper template frame pressure device, the lithium battery cover plate airtightness detection carrier frame forward and backward displacement driving device is fixed on the workbench at a position located on the left side of the lithium battery cover plate inspection input mechanism, and in use, the lithium battery cover plate airtightness detection carrier frame is displaced forward and backward. The driving device is electrically connected to the electrical controller, the lithium battery cover plate airtightness detection carrier is arranged on the lithium battery cover plate airtightness detection carrier front and rear displacement driving device for moving forward and backward, the detection gas introduction device is arranged on the lithium battery cover plate airtightness detection carrier, and is connected to the detection gas supply source by a pipeline when in use, the vacuum upper template corresponds to the top of the lithium battery cover plate airtightness detection carrier and is fixed to the downward side of the upper template frame, and the upper template frame is connected to the upper template frame pressure device in a floating manner at a position below the upper template frame pressure device; the vacuum mechanism is connected to the vacuum upper template by a pipeline.

[0011] In another specific embodiment of the present invention, the forward and backward displacement driving device of the airtightness detection carrier frame of the lithium battery cover plate includes a left guide rail of the airtightness detection carrier frame, a right guide rail of the airtightness detection carrier frame, a forward and backward displacement driving cylinder of the airtightness detection carrier frame, a front limit block of the first vacuum lower template and a rear limit block of the vacuum lower template, the left guide rail of the airtightness detection carrier frame and the right guide rail of the airtightness detection carrier frame are fixed on the workbench in a state where they correspond to each other on the left and right and are parallel to each other in the length direction, a pair of left guide rail sliders of the airtightness detection carrier frame are slidably arranged on the left guide rail of the airtightness detection carrier frame, and the left guide rail of the airtightness detection carrier frame is provided on the airtightness detection carrier frame. A pair of right guide rail sliders of the airtightness detection carrier frame are slidably arranged on the right guide rail of the airtightness detection carrier frame, the front and rear end of ... The bottom of the cylinder fixing seat is fixed to the workbench, the first air-extraction lower template front limit block is fixed on the workbench at a position corresponding to the front end of the air-tightness detection carrier forward and backward displacement driving cylinder, and a air-extraction lower template front buffer and an air-extraction lower template front position signal collector are arranged on the rear side of the first air-extraction lower template front limit block, the air-extraction lower template rear limit block is fixed on the workbench at a position corresponding to the rear end of the air-tightness detection carrier forward and backward displacement driving cylinder and corresponds to the first air-extraction lower template front limit block, and an air-extraction lower template rear buffer and an air-extraction lower template rear limit block are arranged on the front side of the air-extraction lower template rear buffer and an air-extraction lower template rear limit block The rear position signal collector of the lower template; the front and rear displacement driving cylinder of the air-tightness detection carrier, the front position signal collector of the vacuum lower template and the rear position signal collector of the vacuum lower template are electrically controlled and connected to the electrical controller; the air-tightness detection carrier of the lithium battery cover is simultaneously connected to the pair of left guide rail sliders of the air-tightness detection carrier, a pair of right guide rail sliders of the air-tightness detection carrier and the front and rear displacement driving cylinder slider of the air-tightness detection carrier and corresponds to the space between the front limit block of the first vacuum lower template and the rear limit block of the vacuum lower template.

[0012] In another specific embodiment of the present invention, the upper template frame pressure device together with the vacuum upper template and the upper template frame are in a vacant state and correspond to the left guide rail of the airtightness detection carrier, the right guide rail of the airtightness detection carrier and the upper rear end of the front and rear displacement driving cylinder of the airtightness detection carrier at the same time; the detection gas introduction device arranged on the lithium battery cover plate airtightness detection carrier is also connected to the rear limit block of the vacuum lower template; the vacuum upper template is equipped with a vacuum joint at the rear end, and the vacuum pumping mechanism is connected to the vacuum joint of the vacuum upper template by a pipeline.

[0013] In another specific embodiment of the present invention, the lithium battery cover plate airtightness detection carrier includes an air-extraction lower template and an upper template of the lithium battery cover plate to be tested, a pair of air-extraction lower template left fixed blocks are fixed at the bottom of the air-extraction lower template and at a position corresponding to the pair of air-extraction detection carrier left guide sliders, and a pair of air-extraction lower template right fixed blocks are fixed at a position corresponding to the pair of air-extraction detection carrier right guide sliders, a pair of air-extraction lower template left fixed blocks are fixed to the pair of air-extraction detection carrier left guide sliders, and a pair of air-extraction lower template right fixed blocks are fixed The fixing block is fixed to the right guide rail slider of the pair of airtightness detection carriers, and a second front limit block of the second air-extraction lower template is fixed in the middle of the side of the front end of the air-extraction lower template facing downward, and the front side surface of the second front limit block of the second air-extraction lower template corresponds to the front buffer of the air-extraction lower template and the front position signal collector of the air-extraction lower template, and a cylinder cylinder barrel yield cavity corresponding to the front and rear displacement driving cylinder of the air-tightness detection carrier is formed at the center position of one end of the second front limit block of the air-extraction lower template, and the rear end surface of the air-extraction lower template is aligned with the air-extraction lower template The rear buffer of the plate corresponds to the rear position signal collector of the lower vacuum template. The center position of the side of the lower vacuum template facing downward is fixed to the cylinder slide block of the airtightness detection carrier through screws. The left and right sides of the template on the lithium battery cover to be tested are respectively fixed to the upper part of a support plate of the lithium battery cover to be tested, and the lower part of the support plate of the lithium battery cover to be tested is fixed to the side of the lower vacuum template facing upward. A lithium battery cover detection accommodating cavity is formed on the side of the template on the lithium battery cover to be tested in a spaced state from front to back. The battery cover plate detection accommodating chamber is divided into a group of small chambers by a separation convex strip, and a lithium battery cover plate detection accommodating chamber air guide pipe matching hole is opened on the template of the lithium battery cover plate to be tested and at a position corresponding to the right end of the lithium battery cover plate detection accommodating chamber. The lithium battery cover plate detection accommodating chamber air guide pipe matching hole is communicated with the accommodating chamber vent groove opened at the lithium battery cover plate detection accommodating chamber position, and the accommodating chamber vent groove is communicated with the lithium battery cover plate detection accommodating chamber through the accommodating chamber air outlet holes distributed at intervals, and each small chamber separated by the separation convex strip corresponds to a accommodating chamber air outlet hole;The detection gas introduction device comprises a valve seat sliding frame, a valve seat, a valve, an air guide block, a detection gas distribution seat, a detection gas transition introduction pipe and a lithium battery cover plate detection accommodating cavity air guide pipe. The valve seat sliding frame is fixed to the upper part of the rear limit block of the air extraction lower template. The valve seat is slidably matched with the front side of the valve seat sliding frame through a pair of valve seat guide rods fixed to the valve seat sliding frame. A valve seat thrust spring is sleeved on the valve seat guide rods and at the upper front side of the valve seat sliding frame and the rear side of the valve seat. A detection gas introduction pipe matching hole is also provided on the valve seat. The valve is arranged on the valve seat and corresponds to the air guide block vent of the air guide block. The air guide block is fixed to the rear end of the air extraction lower template and corresponds to the valve seat. The detection gas distribution seat is in contact with the extraction at a position corresponding to the front of the air guide block. The lower gas template is fixed, one end of the detection gas transition introduction pipe is fixed to the gas guide block at a position corresponding to the air vent of the gas guide block, and the other end is matched with the detection gas distribution seat air inlet hole of the detection gas distribution seat, and the detection gas distribution seat is provided with detection gas distribution seat outlet holes equal to the number of the lithium battery cover plate detection accommodating cavity air guide pipe matching holes, the number of lithium battery cover plate detection accommodating cavity air guide pipes is equal to the number of the detection gas distribution seat and one end is fixed to the detection gas distribution seat at a position corresponding to the detection gas distribution seat outlet hole, and the other end of the lithium battery cover plate detection accommodating cavity air guide pipe is fixed to the template on the lithium battery cover plate to be tested at a position corresponding to the lithium battery cover plate detection accommodating cavity air guide pipe matching hole; the upper template frame pressure device together with the upper vacuum template and the upper template frame correspond to the upper part of the template on the lithium battery cover plate to be tested in a vacant state;An upper exhaust template air duct is provided on the upper exhaust template in a state parallel to the length direction of the upper exhaust template, the front end of the upper exhaust template air duct is sealed by a front plug screw and after a sealing ring is added, and the rear end corresponds to and communicates with the upper exhaust template exhaust joint, and an upper exhaust template air cavity is formed on the downward side of the upper exhaust template, the number of the upper exhaust template air cavities is equal to the number of the lithium battery cover plate detection accommodating cavities and the positions correspond, and each upper exhaust template air cavity has an upper exhaust template small air cavity equal to the number of small cavities separated by the separating convex strips, and adjacent upper exhaust template small cavities are connected by an upper exhaust template small cavity connecting air duct, and the upper exhaust template small cavities The left end port and the right end port of the communicating air passage are respectively blocked by the sealing plug of the communicating air passage port of the small air cavity of the upper air extraction template. On the side of the upper air extraction template facing upward and at the position corresponding to the air cavity of the upper air extraction template, lithium battery board assisting falling-off devices are respectively arranged in pairs. The lithium battery board assisting falling-off devices include a spring pressure plate, a spring pressure plate fixing screw, a lithium battery board assisting falling-off push column and a push column acting spring. The spring pressure plate is arranged in a pressure plate cavity formed on the side of the upper air extraction template facing upward and corresponds to the air cavity of the upper air extraction template. One end of the spring pressure plate is fixed to the upper air extraction template in the pressure plate cavity by the spring pressure plate fixing screw, and the spring pressure plate is directed toward the lithium battery board assisting falling-off One end of the push column is configured as a spring limiting end, and the lithium battery panel assisting falling push column is arranged in a floating manner up and down at a position corresponding to the downward side of the spring limiting end in a push column hole which is provided on the upper vacuum template and communicates with the air cavity of the upper vacuum template, and the push column hole also corresponds to the pressure plate cavity, and a push column action spring supporting flange is configured at the upper end of the lithium battery panel assisting falling push column and around the lithium battery panel assisting falling push column, and the push column action spring is sleeved on the upper end of the lithium battery panel assisting falling push column, and the upper end of the push column action spring is supported on the downward side of the spring limiting end of the spring pressure plate, and the lower end of the push column action spring is supported on the push column action spring supporting flange. On the flange; On the upper template frame and at the four corners, there are provided with a suction upper template fixing screw hole; On the upper template frame and at the position corresponding to the suction upper template fixing screw hole, there are provided with a suction upper template fixing screw for fixing the suction upper template to the side of the upper template frame facing downward; On the upper template frame and at the four corners, there are provided with an upper template frame connecting screw rod hole for connecting the upper template frame pressure device; On the front end of the template on the lithium battery cover to be tested, there is a template clamping signal collector, and at the front end of the suction upper template and at the position corresponding to the template clamping signal collector, there is a template clamping signal collector collision block. ;

[0014] In another specific embodiment of the present invention, the upper template frame pressure device includes an upper template pressure plate, an upper template pressure plate pressure cylinder fixing plate, a pair of upper template pressure plate lifting cylinders and a group of cylinder fixing plate columns, an upper template frame connecting screw is respectively penetrated at the four corners of the upper template pressure plate, and an upper template frame return spring is sleeved on the upper template frame connecting screw, the upper template pressure plate and the upper template frame connecting screw are slidably matched, and the lower end of the upper template frame connecting screw is screwed into the upper template frame connecting screw hole, the upper end of the upper template frame return spring is supported on the side of the upper template pressure plate facing downward, and the lower end of the upper template frame return spring is supported on the side of the upper template frame facing upward, the upper template pressure plate pressure cylinder fixing plate is fixed to the top of a group of cylinder fixing plate columns, and a group of upper template pressure plate pressure cylinder fixing plate guide rod guide sleeves are fixed at intervals on the side of the upper template pressure plate pressure cylinder fixing plate facing downward. The guide sleeves of the guide rods of the upper template pressure plate pressure cylinder fixing plate are each provided with an upper template pressure plate pressure cylinder fixing plate guide rod, the lower end of the upper template pressure plate pressure cylinder fixing plate guide rod is fixed to the upper template pressure plate by the upper template pressure plate pressure cylinder fixing plate guide rod screw, and the upper end is extended to the upper part of the upper template pressure plate pressure cylinder fixing plate through the upper template pressure plate pressure cylinder fixing plate guide rod guide sleeve, a pair of upper template pressure plate lifting cylinders are arranged on the upper template pressure plate pressure cylinder fixing plate and are electrically controlled and connected to the electrical controller, the upper template lifting cylinder columns of the pair of upper template pressure plate lifting cylinders extend to the lower part of the upper template pressure plate pressure cylinder fixing plate at the position corresponding to the upper template lifting cylinder column clearance hole opened on the upper template pressure plate pressure cylinder fixing plate and are fixed to the upper template pressure plate by the cylinder column fixing screws, and the bottom of a group of cylinder fixing plate columns is fixed to the workbench.

[0015] The technical effect of the technical solution provided by the present invention is that: since the lithium battery cover plate airtightness detection device adopts a lithium battery cover plate airtightness alternating detection mechanism, it helps to significantly improve the detection efficiency and meet the requirements of high-efficiency automated production; since the lithium battery cover plate airtightness alternating detection mechanism is arranged on the workbench at a position corresponding to the left side of the lithium battery cover plate inspection input mechanism, the lithium battery cover plate can be extracted from the lithium battery cover plate inspection input mechanism by a lithium battery cover plate transfer robot and released to the lithium battery cover plate airtightness alternating detection mechanism and removed and transferred to the subsequent workstation after the airtightness detection is completed, thereby satisfying the lithium battery cover plate transfer robot as other mechanisms to cooperate with it and reflect good systematization. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of an embodiment of the present invention.

[0017] Figure 2 for Figure 1The detailed structural diagram of the lithium battery cover inspection input mechanism is shown.

[0018] Figure 3 for Figure 1 The detailed structural diagram of the left and right displacement drive mechanism of the lithium battery cover plate transferring robot and the lithium battery cover plate transferring robot is shown.

[0019] Figure 4 for Figure 1 and Figure 3 A detailed structural diagram of a set of lithium battery cover plate separation devices of the structural system of the lithium battery cover plate inspection input mechanism is shown.

[0020] Figure 5 for Figure 1 A partial structural diagram of the lithium battery cover plate air tightness alternating detection mechanism of the lithium battery cover plate air tightness detection device shown.

[0021] Figure 6 for Figure 5 Enlarged view of part A.

[0022] Figure 7 for Figure 1 The overall structure diagram of the lithium battery cover airtightness alternating detection mechanism is shown.

[0023] Figure 8 for Figure 1 The detailed structural diagram of the lithium battery cover leakage detection qualified product output mechanism shown.

[0024] Fig. 9 for Figure 1 The detailed structural diagram of the lithium battery cover leakage detection mechanism is shown.

[0025] Fig.10 for Figure 1 The detailed structural diagram of the lithium battery cover leakage detection and removal mechanism for defective products is shown. DETAILED DESCRIPTION

[0026] In order to more clearly understand the technical essence and beneficial effects of the present invention, the applicant provides a detailed description in the form of embodiments below. However, the description of the embodiments is not a limitation of the present invention. Any equivalent changes made based on the concept of the present invention that are merely formal and not substantial should be regarded as within the scope of the technical solution of the present invention.

[0027] In the following description, all concepts related to up, down, left, right, front and back directions or orientations are based on Figure 1 The position state is taken as a reference, and thus it cannot be understood as a special limitation on the technical solution provided by the present invention.

[0028] See also Figure 1, showing the structural system of the lithium battery cover plate testing machine, which is a rectangular workbench 1, a lithium battery cover plate inspection input mechanism 2, a lithium battery cover plate transfer robot left and right displacement driving mechanism 8, a lithium battery cover plate transfer robot 9, a vacuum mechanism 10, a mass spectrometer 20 and an electrical controller 30. The lithium battery cover plate inspection input mechanism 2 is arranged on the right side of the workbench 1 facing upward, and the lithium battery cover plate transfer robot left and right displacement driving mechanism 8 is vacated from left to right in the long side direction of the aforementioned workbench 1. The upper state is fixed to the middle part of the aforementioned workbench 1, that is, the left-right displacement driving mechanism 8 of the lithium battery cover plate transfer robot extends from the left end to the right end of the workbench 1, and the lithium battery cover plate transfer robot 9 is arranged on the left-right displacement driving mechanism 8 of the aforementioned lithium battery cover plate transfer robot and is connected to the left-right displacement driving mechanism 8 of the lithium battery cover plate transfer robot in a transmission manner. The vacuum mechanism 10 is arranged on the right end of the aforementioned workbench 1 facing downward and is connected to the mass spectrometer 20 by a pipeline. The mass spectrometer 20 is arranged on the workbench 1. At the left end of the workbench 1, the electrical controller 30 is arranged below the right end of the workbench 1, and the aforementioned lithium battery cover plate inspection input mechanism 2, the lithium battery cover plate transfer robot left and right displacement drive mechanism 8, the lithium battery cover plate transfer robot 9, the vacuum mechanism 10 and the mass spectrometer 20 are all electrically controlled and connected to the aforementioned electrical controller 30; a lithium battery cover plate airtightness alternating detection mechanism 3 of the structural system of the lithium battery cover plate airtightness detection device is shown, and the lithium battery cover plate airtightness alternating detection mechanism 3 is arranged on the aforementioned workbench 1 at a position located on the left side of the aforementioned lithium battery cover plate inspection input mechanism 2 and is electrically controlled and connected to the aforementioned electrical controller 30, the aforementioned vacuum mechanism 10 is connected to the lithium battery cover plate airtightness alternating detection mechanism 3 by a pipeline, and the aforementioned lithium battery cover plate transfer robot 9 provides the lithium battery cover input by the aforementioned lithium battery cover plate inspection input mechanism 2 to the lithium battery cover plate airtightness alternating detection mechanism 3 and moves away to the subsequent workstation to be described in detail below after the lithium battery cover plate airtightness alternating detection mechanism 3 completes the airtightness detection of the lithium battery cover.

[0029] exist Figure 1 Also shown is a lithium battery cover plate airtightness unqualified detection product output mechanism 4, a lithium battery cover plate leakage detection mechanism 5, a lithium battery cover plate leakage detection qualified product output mechanism 6 and a lithium battery cover plate leakage detection unqualified product removal mechanism 7, which still belong to the structural system of the aforementioned lithium battery cover plate tester. Figure 1It can be seen from the diagram that the aforementioned lithium battery cover plate inspection input mechanism 2, the lithium battery cover plate airtightness alternating detection mechanism 3, the lithium battery cover plate airtightness unqualified inspection product output mechanism 4 and the lithium battery cover plate leakage detection qualified product output mechanism 6 are spaced apart from right to left in sequence, and are arranged on the aforementioned workbench 1 in a state parallel to the short side direction of the workbench 1, the lithium battery cover plate leakage detection mechanism 5 is fixed to the lithium battery cover plate leakage detection qualified product output mechanism 6 at a position corresponding to the upper part of the lithium battery cover plate leakage detection qualified product output mechanism 6, and the lithium battery cover plate leakage detection unqualified product removal mechanism 7 corresponds to the rear of the lithium battery cover plate leakage detection mechanism 5 and is also fixed to the aforementioned workbench 1 in a state of being suspended above the lithium battery cover plate leakage detection qualified product output mechanism 6. The aforementioned lithium battery cover plate airtightness unqualified product output mechanism 4, lithium battery cover plate leakage detection mechanism 5, lithium battery cover plate leakage detection qualified product output mechanism 6 and lithium battery cover plate leakage detection unqualified product removal mechanism 7 are also electrically controlled and connected to the aforementioned electrical controller 30.

[0030] Depend on Figure 1 As shown, the aforementioned workbench 1 has a frame-shaped or hollow workbench support frame 11 which will be mentioned below. A mass spectrometer support plate 111 is fixed in a horizontal cantilever state at the upper left end of the workbench support frame 11 and at a position corresponding to the left end of the workbench 1. The aforementioned mass spectrometer 20 is arranged on the mass spectrometer support plate 111. A vacuum pump support plate 112 is fixed in a horizontal cantilever state at the lower left end of the workbench support frame 11 and at a position corresponding to the bottom of the mass spectrometer support plate 111. A vacuum pump 40 connected to the aforementioned vacuum mechanism 10 and the electrical controller 30 is arranged on the vacuum pump support plate 112. The short side direction of the aforementioned workbench 1 is Figure 1 The length direction of the workbench 1 is the length from the front side to the rear side in the position state shown. Correspondingly, the length direction of the workbench 1 refers to the length direction from the left end to the right end of the workbench 1. As a preferred solution, a workbench support frame support foot 113 having a horizontal adjustment function for the workbench 1 can be provided at the bottom of the aforementioned workbench support frame 11, and a support roller 1121 is provided at the bottom of the aforementioned vacuum pump support plate 112.

[0031] See also Figures 2 to 4 And combined with Figure 1The applicant first explains the aforementioned lithium battery cover plate inspection input mechanism 2, which is arranged on the right side of the aforementioned workbench 1 facing upward, and the lithium battery cover plate inspection input mechanism 2 includes a lithium battery cover plate inspection conveyor belt driving device 21, a guide bar front fixing device 22, a guide bar rear fixing device 23, a left guide bar 24, a right guide bar 25, a lithium battery cover plate inspection input left conveyor belt 26, a lithium battery cover plate inspection input right conveyor belt 27, a group of lithium battery cover plate separation devices 28 and a group of lithium battery cover plate push cylinders 29, and the lithium battery cover plate inspection conveyor belt driving device 21 includes a lithium battery cover plate inspection conveyor belt driving motor 211, a lithium battery cover plate inspection conveyor belt driving motor fixing seat 212 , a lithium battery cover plate inspection conveying belt driving driving wheel 213, a lithium battery cover plate inspection conveying belt driving driven wheel 214, a power transition transmission belt 215 and a conveying pulley driving shaft 216, a lithium battery cover plate inspection conveying belt driving motor 211 is fixed to a lithium battery cover plate inspection conveying belt driving motor fixing seat 212 and the lithium battery cover plate inspection conveying belt driving motor fixing seat 212 is fixed to the right end front of the aforementioned workbench 1 together with the lithium battery cover plate inspection conveying belt driving motor fixing seat 212 through the lithium battery cover plate inspection conveying belt driving motor fixing seat screw 2121, and the lithium battery cover plate inspection conveying belt driving motor 211 is fixed to the right end front of the aforementioned workbench 1, and the lithium battery cover plate inspection conveying belt driving motor 211 of the lithium battery cover plate inspection conveying belt driving motor shaft 2111 extends to the lithium battery cover plate inspection conveying belt driving motor On the left side of the motor fixing seat 212, the lithium battery cover plate inspection conveyor belt driving driving wheel 213 is fixed to the lithium battery cover plate inspection conveyor belt driving motor shaft 2111 at the position on the left side of the aforementioned lithium battery cover plate inspection conveyor belt driving motor fixing seat 212, and the lithium battery cover plate inspection conveyor belt driving driven wheel 214 is fixed on the conveyor pulley driving shaft 216 in a flat key fixing manner, one end of the power transition transmission belt 215 is sleeved on the lithium battery cover plate inspection conveyor belt driving driving wheel 213, and the other end is sleeved on the lithium battery cover plate inspection conveyor belt driven driven wheel 214, the left end of the aforementioned conveyor pulley driving shaft 216 is rotatably supported on the conveyor pulley driving shaft left support seat 2161 through a bearing, and the conveyor pulley The right end of the drive shaft 216 is also rotatably supported on the right support seat 2162 of the conveyor pulley drive shaft through a bearing. The left support seat 2161 of the conveyor pulley drive shaft and the right support seat 2162 of the conveyor pulley drive shaft correspond to each other on the left and right and are fixed to the aforementioned workbench 1 at the bottom by screws. The guide bar front fixing device 22 includes a guide bar front end fixing seat shaft 221, a left guide bar front end fixing seat 222 and a right guide bar front end fixing seat 223. The guide bar front end fixing seat shaft 221 corresponds to the rear of the aforementioned conveyor pulley drive shaft 216. The left end of the guide bar front end fixing seat shaft 221 is fixed to the aforementioned conveyor pulley drive shaft left support seat 2161 by screws, and the right end of the guide bar front end fixing seat shaft 221 is also fixed by screws ( Figure 22162 is fixed to the right support seat 2162 of the aforementioned conveyor pulley drive shaft, the left guide bar front end fixing seat 222 and the right guide bar front end fixing seat 223 are fixed to the middle part of the guide bar front end fixing seat shaft 221 in a state of corresponding to each other on the left and right and spaced from each other, the guide bar rear fixing device 23 includes a guide bar rear fixed shaft 231, a left guide bar rear end fixing seat 232, a right guide bar rear end fixing seat 233, a guide bar rear fixed shaft left support seat 234 and a guide bar rear fixed shaft right support seat 235, the left end of the guide bar rear fixed shaft 231 is fixed to the guide bar rear fixed shaft left support seat 234, the right end of the guide bar rear fixed shaft 231 is fixed to the guide bar rear fixed shaft right support seat 235, the left guide bar rear end fixing seat 232 and the right guide bar The rear end fixing seat 233 is fixed to the middle part of the rear fixed shaft 231 of the guide rail in a state of left-right correspondence and spacing from each other, and the rear end fixing seat 232 of the left guide rail corresponds to the front end fixing seat 222 of the left guide rail, and the rear end fixing seat 233 of the right guide rail corresponds to the front end fixing seat 223 of the right guide rail, the left support seat 234 of the rear fixed shaft of the guide rail and the right support seat 235 of the rear fixed shaft of the guide rail are fixed to the rear right end of the aforementioned workbench 1 in a state of left-right correspondence, and the left support seat 234 of the rear fixed shaft of the guide rail corresponds to the left support seat 2161 of the aforementioned conveying pulley drive shaft, and the right support seat 235 of the rear fixed shaft of the guide rail corresponds to the right support seat 2162 of the aforementioned conveying pulley drive shaft, and the front end of the left guide bar 24 is connected to the left guide rail 24. The left guide bar is fixed to the front end fixing seat 222 of the left guide bar through the front fixing screw 241 of the left guide bar, a lithium battery cover baffle fixing seat 242 is fixed on the right side of the front end of the left guide bar 24 and at a position corresponding to the upper side of the front end fixing seat 222 of the left guide bar, and a lithium battery cover baffle 2421 is fixed on the rear side of the lithium battery cover baffle fixing seat 242, and the rear end of the left guide bar 24 is fixed to the rear end fixing seat 232 of the left guide bar through the rear end fixing screw 243 of the left guide bar, and a group of left end baffle fixing seats 244 of the lithium battery cover plate to be inspected are fixed in an interval state on the left side corresponding to the length direction of the left guide bar 24, and the left end baffle fixing screws of the lithium battery cover plate to be inspected are used on the left end baffle fixing seats 244 of the lithium battery cover plate to be inspected 2451 is fixed with a left end baffle plate 245 of the lithium battery cover plate to be inspected, and the left end baffle plate 245 of the lithium battery cover plate to be inspected is in contact with the left side surface of the left guide bar 24, and the upper edge of the left end baffle plate 245 of the lithium battery cover plate to be inspected in the length direction protrudes out of the upper plane of the left guide bar 24, and a blocking plate support plate 246 is fixed to the right side of the front end of the left guide bar 24, and the front end of the right guide bar 25 is fixed to the aforementioned right guide bar front end fixing seat 223 through the right guide bar front fixing screw 251, and the rear end of the right guide bar 25 is fixed to the aforementioned right guide bar rear end fixing seat 233 through the right guide bar rear end fixing screw 252, and a group of right end baffle fixing seats 253 of the lithium battery cover plate to be inspected are fixed in an interval state on the right side corresponding to the length direction of the right guide bar 25.A right end baffle plate 254 of the lithium battery cover plate to be inspected is fixed on the right end baffle plate fixing seat 253 of the group of lithium battery cover plates to be inspected by a right end baffle plate fixing screw 2541 of the lithium battery cover plate to be inspected, the right end baffle plate 254 of the lithium battery cover plate to be inspected is in contact with the right side surface of the right guide bar 25 and the upper edge of the right end baffle plate 254 of the lithium battery cover plate to be inspected in the length direction protrudes out of the upper plane of the right guide bar 25, and a lithium battery cover plate signal collector 2543 for inspection is respectively arranged on the upper edge of the right end baffle plate 254 of the lithium battery cover plate to be inspected and at the position corresponding to each adjacent lithium battery cover plate partition device 28, and the lithium battery cover plate signal collector 2543 for inspection is electrically controlled and connected with the aforementioned electrical controller 30, and the front end of the left conveyor belt 26 for inputting the lithium battery cover plate to be inspected is sleeved on the front belt of the left conveyor belt 26 for inputting the lithium battery cover plate to be inspected On the pulley 261, and the front pulley 261 of the left conveyor belt for inspection of the lithium battery cover plate is fixed on the aforementioned conveyor pulley drive shaft 216 at a position between the left support seat 2161 of the aforementioned conveyor pulley drive shaft and the aforementioned lithium battery cover plate inspection conveyor belt drive driven pulley 214, and corresponding to the front end of the aforementioned left guide bar 24, the rear end of the left conveyor belt 26 for inspection of the lithium battery cover plate is sleeved on the rear pulley 262 of the left conveyor belt for inspection of the lithium battery cover plate, and the rear pulley 262 of the left conveyor belt for inspection of the lithium battery cover plate is arranged on the rear pulley bearing seat 2621 of the left conveyor belt for inspection of the lithium battery cover plate at a position corresponding to the rear end of the left guide bar 24, and the rear pulley bearing seat 2621 of the left conveyor belt for inspection of the lithium battery cover plate is fixed to the left side of the rear end of the aforementioned left guide bar 24. Figure 2The rear pulley bearing 2622 (a pair) for rotatingly setting the rear pulley 262 of the left conveyor belt for inputting the lithium battery cover plate for inspection and a rear pulley bearing matching shaft 2623 for supporting the pair of rear pulley bearings 2622 have been shown, and the arrangement method of the left conveyor belt 26 for inputting the lithium battery cover plate for inspection is similar to the arrangement method of the rear pulley 642 of the left output belt of the qualified product to be mentioned below, so the applicant will not repeat them. The left guide bar 24 corresponds to the middle part of the belt cavity of the left conveyor belt 26 for inputting the lithium battery cover plate for inspection and the middle part of the opposite side of the left conveyor belt 26 for inputting the lithium battery cover plate for inspection is in contact with the upper and lower surfaces of the left guide bar 24, and the front end sleeve of the right conveyor belt 27 for inputting the lithium battery cover plate for inspection The lithium battery cover plate inspection input right conveyor belt front pulley 271 is placed on the lithium battery cover plate inspection input right conveyor belt, and the lithium battery cover plate inspection input right conveyor belt front pulley 271 is fixed on the aforementioned conveyor pulley drive shaft 216 at a position between the aforementioned conveyor pulley drive shaft right support seat 2162 and the aforementioned lithium battery cover plate inspection conveyor belt drive driven pulley 214 and corresponds to the front end of the aforementioned right guide rail 25, and the rear end of the lithium battery cover plate inspection input right conveyor belt 27 is sleeved on the lithium battery cover plate inspection input right conveyor belt rear pulley 272, and the lithium battery cover plate inspection input right conveyor belt rear pulley 272 (the setting method is the same as the lithium battery cover plate inspection input left conveyor belt rear pulley 262) corresponds to the right guide rail 25 The rear end is arranged on the rear pulley bearing seat 2721 of the right conveyor belt for inputting the lithium battery cover plate for inspection, and the rear pulley bearing seat 2721 of the right conveyor belt for inputting the lithium battery cover plate for inspection is fixed to the right side of the rear end of the right guide bar 25, and the right guide bar 25 corresponds to the middle part of the belt cavity of the right conveyor belt 27 for inputting the lithium battery cover plate for inspection and provides the middle part of the opposite side of the right conveyor belt 27 for inputting the lithium battery cover plate for inspection to contact the upper and lower surfaces of the right guide bar 25, a group of lithium battery cover plate partitioning devices 28 are arranged at intervals on the aforementioned barrier plate support plate 246 and are located between the opposite sides of the aforementioned left guide bar 24 and the right guide bar 25, the group of lithium battery cover plate partitioning devices 28, the aforementioned lithium battery cover plate inspection conveyor belt The driving motor 211 and a group of lithium battery cover plate pushing cylinders 29 are electrically controlled and connected with the aforementioned electrical controller 30. The aforementioned group of lithium battery cover plate pushing cylinders 29 are fixed at intervals on the right side of the aforementioned right end baffle 254 of the lithium battery cover plate to be inspected through the lithium battery cover plate pushing cylinder fixing seat 291, and the lithium battery cover plate pushing cylinder column 292 of the lithium battery cover plate pushing cylinder 29 of the group passes through the lithium battery cover plate pushing cylinder column yielding hole 2542 opened on the upper edge (i.e., the upper part) of the right end baffle 254 of the lithium battery cover plate to be inspected and extends to the left side of the right end baffle 254 of the lithium battery cover plate to be inspected; the aforementioned lithium battery cover plate airtightness alternating detection mechanism 3 is located on the left side of the aforementioned left guide rail 24;When the aforementioned lithium battery cover plate transfer robot 9 driven by the aforementioned lithium battery cover plate transfer robot left and right displacement driving mechanism 8 moves to the right to the stop point, the lithium battery cover plate transfer robot 9 corresponds to the upper part of the aforementioned group of lithium battery cover plate partition devices 28 in a vacant state; the rear ends of the aforementioned left guide bar 24, right guide bar 25, lithium battery cover plate airtightness unqualified detection product output mechanism 4 and lithium battery cover plate leakage detection qualified product output mechanism 6 are each extended to the rear edge of the aforementioned workbench 1 in a horizontal cantilever state; the aforementioned lithium battery cover plate leakage detection mechanism 5 is located between the left end corresponding to the aforementioned lithium battery cover plate leakage detection unqualified product removal mechanism 7 and the lithium battery cover plate transfer robot left and right displacement driving mechanism 8; the aforementioned workbench 1 is arranged on a workbench support frame 11 mentioned above, and at the left end of the workbench support frame 11 and at a position corresponding to the lower part of the aforementioned mass spectrometer 20, there is a secondary vacuum pump 40 mentioned above that is connected to the aforementioned vacuum mechanism 10 pipeline and is also connected to the aforementioned mass spectrometer 20. ;

[0032] See also Figure 2 and Figure 4 And combined with Figure 1 as well as Figure 3 The aforementioned set of lithium battery cover plate partition devices 28 each includes a barrier plate frame lifting cylinder 281, a barrier plate frame lifting cylinder fixing seat 282, a barrier plate bracket 283, a barrier plate 284, a barrier plate bracket connecting slider 285, a barrier plate bracket connecting slider guide rail 286 and a barrier plate bracket connecting slider guide rail fixing seat 287, and the barrier plate bracket connecting slider guide rail fixing seat 287 is connected to the barrier plate bracket by a barrier plate bracket connecting slider guide rail fixing seat screw 2871 ( Figure 2281 is fixed to the right side of the aforementioned baffle plate support plate 246 and forms a vertical relationship with the right side of the horizontally arranged baffle plate support plate 246, the baffle plate frame lifting cylinder 281 is electrically controlled and connected to the aforementioned electrical controller 30, the upper part of the cylinder body of the baffle plate frame lifting cylinder 281 is fixed to the front end of the baffle plate frame lifting cylinder fixing seat 282 by the baffle plate frame lifting cylinder cylinder body screw 2812, the baffle plate frame lifting cylinder column 2811 of the baffle plate frame lifting cylinder 281 faces upward and extends to the top of the front end of the baffle plate frame lifting cylinder fixing seat 282, the rear end of the baffle plate frame lifting cylinder fixing seat 282 is fixedly connected to the bottom of the baffle plate bracket connecting slider guide fixing seat 287 by a pair of baffle plate frame lifting cylinder fixing seat screws 2821, and a cylinder column is fixed to the bottom of the baffle plate bracket 283 A connecting plate 2832 is provided with a cylinder column connecting screw 28321, and the cylinder column connecting screw 28321 is connected to the aforementioned baffle plate frame lifting cylinder column 2811. The baffle plate bracket 283 is fixed to the front side of the baffle plate bracket connecting slider 285 by a group of baffle plate bracket fixing screws 2831. The baffle plate 284 is fixed to the upper end face of the baffle plate bracket 283 by a baffle plate fixing screw 2841, and the left end of the baffle plate 284 corresponds to the upper side of the aforementioned baffle plate support plate 246. The rear side of the baffle plate bracket connecting slider 285 is slidably matched with the baffle plate bracket connecting slider guide rail 286, and the baffle plate bracket connecting slider guide rail 286 is fixed to the aforementioned baffle plate bracket connecting slider guide rail fixing seat 287 by the baffle plate bracket connecting slider guide rail fixing screw 2861.

[0033] Under the operation of the aforementioned lithium battery cover plate inspection conveying belt driving motor 211 electrically connected to the electrical controller 30, the lithium battery cover plate inspection conveying belt driving motor shaft 2111 drives the lithium battery cover plate inspection conveying belt driving driving wheel 213 to move (rotate), and the power transition transmission belt 215 drives the lithium battery cover plate inspection conveying belt driving driving wheel 213, thereby driving the conveying pulley driving shaft 216, and the conveying pulley driving shaft 216 simultaneously drives the lithium battery cover plate inspection input left conveying belt front pulley 261 and the lithium battery cover plate inspection input right conveying belt The front pulley 271 of the conveyor belt is used to transport the lithium battery cover plate for inspection, thereby causing the left conveyor belt 26 for the lithium battery cover plate for inspection to move around the front pulley 261 of the left conveyor belt for the lithium battery cover plate for inspection and the rear pulley 262 of the right conveyor belt for the lithium battery cover plate for inspection, and at the same time, the right conveyor belt 27 for the lithium battery cover plate for inspection is moved around the front pulley 271 of the right conveyor belt for the lithium battery cover plate for inspection and the rear pulley 272 of the right conveyor belt for the lithium battery cover plate for inspection, so as to transport the lithium battery cover plate 50 shown in the figure from the back to the front, that is, toward the direction of the aforementioned group of lithium battery cover plate partition devices 28. In the use state, taking manual feeding as an example: a worker manually places the lithium battery cover plates 50 to be tested one by one on the upper part between the left and right conveyor belts 26, 27 for the lithium battery cover plate inspection. Specifically, the worker places one end of the lithium battery cover plate 50 on the left conveyor belt 26 for the lithium battery cover plate inspection at the rear side of the workbench 1 and at a position corresponding to the rear ends of the left and right conveyor belts 26, 27 for the lithium battery cover plate inspection, and places the other end of the lithium battery cover plate 50 on the right conveyor belt 27 for the lithium battery cover plate inspection. The lithium battery cover plates 50 to be tested are delivered to the left and right conveyor belts 26, 27 for the lithium battery cover plate inspection by the counterclockwise and synchronously moving left and right conveyor belts 26, 27. Figure 1 The workstation shown is picked up by the lithium battery cover plate transfer robot 9.

[0034] In the above process, when the first lithium battery cover 50 reaches the level of touching the aforementioned lithium battery cover baffle 2421, that is, corresponding to the first aforementioned lithium battery cover signal collector 2543 (the present invention uses a photoelectric sensor), it is sensed by the first lithium battery cover signal collector 2543, which feeds back the signal to the electrical controller 30, and the electrical controller 30 sends a signal to the first lithium battery cover signal collector 2543. Figure 2The frontmost barrier plate frame lifting cylinder 281 shown in the figure issues a work command, and the barrier plate frame lifting cylinder 281 extends upward, pushing the barrier plate bracket 283 and the barrier plate 284 to rise upward, so that the next lithium battery cover plate 50 arrives and touches the barrier plate 284, and the end faces of the lithium battery cover plate 50 are respectively limited by the opposite sides of the left end face baffle 245 of the lithium battery cover plate to be inspected and the right end face baffle 254 of the lithium battery cover plate to be inspected. By analogy, until the four lithium battery cover plates 50 not shown in the figure all reach and touch the corresponding blocking plate 284, the last lithium battery cover plate signal collector 2543 (using a photoelectric switch (also called a photoelectric sensor) or other equivalent electronic and electrical components, the concept of the signal collector involved below is the same) feeds back the signal to the electrical controller 30, so that the aforementioned lithium battery cover plate inspection conveying belt drive motor 211 stops working, and then a group of lithium battery cover plate push cylinders 29 work to push the right end face of the lithium battery cover plate 50 once, and after pushing, a group of lithium battery cover plate push cylinders 29 reset, so that the positions of all four lithium battery cover plates 50 are aligned and consistent. According to professional common sense, the number of lithium battery cover plates 50 sent for inspection at one time is equal to the number of the aforementioned group of lithium battery cover plate separators 28. After the lithium battery cover plate pushing cylinder 29 is reset, the electrical controller 30 sends a signal to the lithium battery cover plate transferring robot 9 which will be described in detail below, and the lithium battery cover plate transferring robot 9 transfers the lithium battery cover plate 50 to the workstation where the lithium battery cover plate airtightness alternating detection mechanism 3 which will be described below is located. At the same time, since the lithium battery cover plate 50 has been removed, the lithium battery cover plate signal collector 2543 for inspection no longer detects the lithium battery cover plate 50, and the aforementioned barrier plate frame lifting cylinder 281 is reset, entering the next round of repeated actions that are the same as above.

[0035] See also Figures 5 to 7 And combined with Figure 1The aforementioned lithium battery cover plate airtightness alternating detection mechanism 3 has a pair corresponding to each other on the left and right, and is located between the left side of the aforementioned left guide bar 24 of the lithium battery cover plate inspection input mechanism 2 and the aforementioned lithium battery cover plate airtightness unqualified inspection product output mechanism 4. The pair of lithium battery cover plate airtightness alternating detection mechanisms 3 each include a lithium battery cover plate airtightness detection carrier frame front-to-back displacement driving device 31, a lithium battery cover plate airtightness detection carrier frame 32, a detection gas introduction device 33, an air suction upper template 34, an upper template frame 35 and an upper template frame pressure device 36. The lithium battery cover plate airtightness detection carrier frame front-to-back displacement driving device 31 is fixed on the aforementioned workbench 1, and is located between the left side of the aforementioned left guide bar 24 and the aforementioned lithium battery cover plate airtightness unqualified inspection product output mechanism 4. When using When in use, the lithium battery cover plate airtightness detection carrier frame forward and backward displacement driving device 31 is electrically connected to the aforementioned electrical controller 30, the lithium battery cover plate airtightness detection carrier frame 32 is movably arranged on the lithium battery cover plate airtightness detection carrier frame forward and backward displacement driving device 31, the detection gas introduction device 33 is arranged on the lithium battery cover plate airtightness detection carrier frame 32, and is connected to the detection gas supply source by a pipeline when in use, the vacuum upper template 34 corresponds to the top of the lithium battery cover plate airtightness detection carrier frame 32 and is fixed to the lower side of the upper template frame 35, and the upper template frame 35 is connected to the upper template frame pressure device 36 in an up and down floating manner at a position below the upper template frame pressure device 36; the aforementioned vacuum pumping mechanism 10 is connected to the aforementioned vacuum upper template 34 by a pipeline.

[0036] Please see the key Figure 5The aforementioned lithium battery cover plate airtightness detection carrier forward and backward displacement driving device 31 includes an airtightness detection carrier left guide rail 311, an airtightness detection carrier right guide rail 312, an airtightness detection carrier forward and backward displacement driving cylinder 313, a first vacuum lower template front limit block 314 and a vacuum lower template rear limit block 315, the airtightness detection carrier left guide rail 311 and the airtightness detection carrier right guide rail 312 are fixed on the aforementioned workbench 1 in a state where they correspond to each other on the left and right and are parallel to each other in the length direction, a pair of airtightness detection carrier left guide rail sliders 3111 are slidably provided on the airtightness detection carrier left guide rail 311, and a pair of airtightness detection carrier left guide rail sliders 3111 are slidably provided on the airtightness detection carrier right guide rail 312. A pair of right guide rail sliders 3121 of the airtightness detection carrier are dynamically arranged, and the front-to-back displacement driving cylinder 313 of the airtightness detection carrier is located between the left guide rail 311 of the airtightness detection carrier and the right guide rail 312 of the airtightness detection carrier. The front end and the rear end of the front-to-back displacement driving cylinder 313 of the airtightness detection carrier are respectively fixed on a front-to-back displacement driving cylinder fixing seat 3131 of the airtightness detection carrier, and an anti-interference space for the front-to-back displacement driving cylinder slider of the airtightness detection carrier is maintained between the middle part of the front-to-back displacement driving cylinder 313 of the airtightness detection carrier and the workbench 1, and the bottom of the front-to-back displacement driving cylinder fixing seat 3131 of the airtightness detection carrier is fixed to the workbench 1. The first front limit block 314 of the air-extraction lower template is fixed on the workbench 1 at a position corresponding to the front end of the front-rear displacement driving cylinder 313 of the air-tightness detection carrier, and a front buffer 3141 of the air-extraction lower template and a front position signal collector 3142 of the air-extraction lower template are arranged on the rear side of the first front limit block 314 of the air-extraction lower template, and the rear limit block 315 of the air-extraction lower template is fixed on the workbench 1 at a position corresponding to the rear end of the front-rear displacement driving cylinder 313 of the air-tightness detection carrier and corresponds to the aforementioned first front limit block 314 of the air-extraction lower template, and a rear buffer 3141 of the air-extraction lower template and a rear position signal collector 3142 of the air-extraction lower template are arranged on the front side of the rear limit block 315 of the air-extraction lower template 3152; the aforementioned air tightness detection carrier frame front and rear displacement driving cylinder 313, the vacuum lower template front position signal collector 3142 and the vacuum lower template rear position signal collector 3152 are electrically controlled and connected to the aforementioned electrical controller 30; the aforementioned lithium battery cover plate air tightness detection carrier frame 32 is simultaneously connected to the aforementioned pair of air tightness detection carrier frame left guide rail sliders 3111, a pair of air tightness detection carrier frame right guide rail sliders 3121 and the air tightness detection carrier frame front and rear displacement driving cylinder cylinder slider 3132 of the air tightness detection carrier frame front and rear displacement driving cylinder 313 and corresponds to the space between the aforementioned first vacuum lower template front limit block 314 and the vacuum lower template rear limit block 315;The aforementioned upper template frame pressure device 36, together with the aforementioned air-exhausting upper template 34 and the upper template frame 35, are in a vacant state and correspond to the upper rear end of the aforementioned air-tightness detection carrier left guide rail 311, the air-tightness detection carrier right guide rail 312 and the air-tightness detection carrier front and rear displacement driving cylinder 313; the aforementioned detection gas introduction device 33 arranged on the aforementioned lithium battery cover plate air-tightness detection carrier 32 is also connected to the aforementioned air-exhausting lower template rear limit block 315; the aforementioned air-exhausting upper template air-exhausting joint 341 is connected to the aforementioned air-exhausting upper template and located at the rear end, and the aforementioned vacuum pumping mechanism 10 is connected to the air-exhausting upper template air-exhausting joint 341 by a pipeline. ;

[0037] Depend on Figure 5As shown, the aforementioned lithium battery cover plate air tightness detection carrier 32 includes an air-extraction lower template 321 and a lithium battery cover plate upper template 322 to be tested, a pair of air-extraction lower template left fixed blocks 3211 are fixed at the bottom of the air-extraction lower template 321 and at the position corresponding to the aforementioned pair of air-tightness detection carrier left guide sliders 3111, and a pair of air-extraction lower template right fixed blocks 3212 are fixed at the position corresponding to the pair of air-tightness detection carrier right guide sliders 3121, the pair of air-extraction lower template left fixed blocks 3211 are fixed to the aforementioned pair of air-tightness detection carrier left guide sliders 3111, and the pair of air-extraction lower template right fixed blocks 3212 are fixed to the aforementioned pair of The right guide rail slider 3121 of the airtightness detection carrier is fixed, and a second air-extraction lower template front limit block 3213 is fixed in the middle of the side facing downward at the front end of the air-extraction lower template 321, and the front side surface of the second air-extraction lower template front limit block 3213 corresponds to the aforementioned air-extraction lower template front buffer 3141 and the air-extraction lower template front position signal collector 3142, and a cylinder cylinder barrel yield cavity 32131 corresponding to the aforementioned air-extraction test carrier front and rear displacement driving cylinder 313 is formed at the center position of one end of the second air-extraction lower template front limit block 3213, and the rear end surface of the air-extraction lower template 321 is aligned with the aforementioned air-extraction lower template rear buffer The lower template 321 is provided with a plurality of airtightness detection means, and the upper template 32 ... The cavity 3222 is divided into a group of small cavities by the separation ridges. A lithium battery cover plate detection accommodating cavity air duct matching hole 3223 is provided on the template 322 on the lithium battery cover plate to be tested and at a position corresponding to the right end of the lithium battery cover plate detection accommodating cavity 3222. The lithium battery cover plate detection accommodating cavity air duct matching hole 3223 is communicated with the accommodating cavity vent groove 3224 provided at the lithium battery cover plate detection accommodating cavity 3222. The accommodating cavity vent groove 3224 is communicated with the lithium battery cover plate detection accommodating cavity 3222 through the accommodating cavity air outlet holes 3225 distributed at intervals, and each small cavity separated by the aforementioned separation ridges corresponds to one accommodating cavity air outlet hole 3225;The aforementioned detection gas introduction device 33 includes a valve seat sliding frame 331, a valve seat 332, a valve 333, an air guide block 334, a detection gas distribution seat 335, a detection gas transition introduction pipe 336 and a lithium battery cover plate detection accommodating cavity air guide pipe 337. The valve seat sliding frame 331 is fixed to the upper part of the rear limit block 315 of the aforementioned vacuum lower template. The valve seat 332 is slidably matched with the front side of the valve seat sliding frame 331 through a pair of valve seat guide rods 3321 fixed to the valve seat sliding frame 331. A valve seat thrust spring 33211 is sleeved on the seat guide rod 3321 and at the upper front side of the valve seat sliding frame 331 and the rear side of the valve seat 332. A detection gas introduction pipe matching hole 3322 is also provided on the valve seat 332. The valve 333 is arranged on the valve seat 332 and corresponds to the air guide block vent 3341 of the air guide block 334. The air guide block 334 is fixed to the rear end of the aforementioned air extraction lower template 321 and corresponds to the valve seat 332. The detection gas distribution seat 335 is arranged on the valve seat 332 and corresponds to the air guide block vent 3341 of the air guide block 334. The air guide block 334 is fixed to the rear end of the aforementioned air extraction lower template 321 and corresponds to the valve seat 332. The detection gas distribution seat 335 is provided with detection gas distribution seat outlet holes 3351 which are equal in number to the matching holes 3223 of the detection gas guide pipe of the lithium battery cover plate detection accommodating cavity. The number of the detection gas guide pipe 337 of the detection accommodating cavity of the lithium battery cover plate is equal to that of the detection gas distribution seat outlet holes 3351 of the detection gas distribution seat 3351 of the detection gas distribution seat 335. The number of gas distribution seats 335 is equal and one end is fixed to the gas distribution seat 335 at a position corresponding to the gas outlet hole 3351 of the gas distribution seat, and the other end of the gas guide tube 337 of the lithium battery cover plate detection cavity is fixed to the template 322 on the lithium battery cover plate to be tested at a position corresponding to the gas guide tube matching hole 3223 of the lithium battery cover plate detection cavity; the upper template frame pressure device 36 together with the upper exhaust template 34 and the upper template frame 35 correspond to the upper part of the template 322 on the lithium battery cover plate to be tested in a vacant state;An upper template air duct 342 is provided on the upper template 34 in parallel with the length direction of the upper template 34. The front end of the upper template air duct 342 is sealed by a front plug screw 3421 and a sealing ring, while the rear end corresponds to and communicates with the upper template air duct joint 341. An upper template air cavity 343 is formed on the downward side of the upper template 34. The number of the upper template air cavities 343 is equal to the number of the aforementioned lithium battery cover plate detection accommodating cavities 3222 and the positions correspond. Each upper template air cavity 343 has an upper template small air cavity equal to the number of the small cavities separated by the aforementioned separation ridges. Adjacent upper template small cavities are separated by the upper template air cavities. The template small air cavity connecting airway 344 is connected, and the left end port and the right end port of the small air cavity connecting airway 344 of the air-exhaust template are respectively blocked by the sealing plug 3441 of the small air cavity connecting airway port of the air-exhaust template. On the upper side of the air-exhaust template 34 and at the position corresponding to the aforementioned air cavity 343 of the air-exhaust template, lithium battery board auxiliary falling devices 345 are respectively arranged in pairs. The lithium battery board auxiliary falling devices 345 include a spring pressure plate 3451, a spring pressure plate fixing screw 3452, a lithium battery board auxiliary falling push column 3453 and a push column acting spring 3454. The spring pressure plate 3451 is arranged in a pressure plate cavity 347 formed on the upper side of the air-exhaust template 34 and is connected to the aforementioned air-exhaust template. The upper template air cavity 343 corresponds to the spring pressure plate fixing screw 3452, and one end of the spring pressure plate 3451 is fixed to the upper exhaust template 34 in the pressure plate cavity 347, and the end of the spring pressure plate 3451 facing the lithium battery board assisting detachment push column 3453 is constituted as a spring limiting end. The lithium battery board assisting detachment push column 3453 is arranged in a floating manner up and down at a position corresponding to the downward side of the aforementioned spring limiting end in a push column hole 346 opened on the exhaust template 34 and communicating with the aforementioned upper exhaust template air cavity 343. The push column hole 346 also corresponds to the aforementioned pressure plate cavity 347, and a push column hole 346 is formed at the upper end of the lithium battery board assisting detachment push column 3453 and around the lithium battery board assisting detachment push column 3453. The push column spring supports the flange 34531, and the push column spring 3454 is sleeved on the upper end of the lithium battery board auxiliary push column 3453, and the upper end of the push column spring 3454 is supported on the downward side of the spring limiting end of the aforementioned spring pressure plate 3451, and the lower end of the push column spring 3454 is supported on the push column spring supporting flange 34531; on the aforementioned upper template frame 35 and at the four corners, there are provided with a vacuum upper template fixing screw 351, and on the aforementioned vacuum upper template 34 and at the position corresponding to the vacuum upper template fixing screw hole 351, there are provided vacuum upper template fixing screws 348 for fixing the vacuum upper template 34 and the downward side of the upper template frame 35;On the upper template frame 35 and at the four corners, upper template frame connection screw holes 352 for connecting the upper template frame pressure device 36 are provided; a template mold closing signal collector 3226 is fixed at the front end of the template 322 on the lithium battery cover plate to be tested, and a template mold closing signal collector collision block 349 is provided at the front end of the upper vacuum template 34 and at the position corresponding to the template mold closing signal collector 3226. ;

[0038] The upper template frame pressure device 36 comprises an upper template pressing plate 361, an upper template pressing plate pressure cylinder fixing plate 362, a pair of upper template pressing plate lifting cylinders 363 and a group of cylinder fixing plate columns 364. An upper template frame connecting screw 3611 is respectively provided at the four corners of the upper template pressing plate 361, and an upper template frame return spring 3612 is sleeved on the upper template frame connecting screw 3611. The upper template pressing plate 361 is slidably matched with the upper template frame connecting screw 3611, and the lower end of the upper template frame connecting screw 3611 is rotated. The upper template frame is inserted into the aforementioned upper template frame connecting screw hole 352, the upper end of the upper template frame reset spring 3612 is supported on the side of the upper template pressure plate 361 facing downward, and the lower end of the upper template frame reset spring 3612 is supported on the side of the upper template frame 35 facing upward, the upper template pressure plate pressure cylinder fixing plate 362 is fixed to the top of a group of cylinder fixing plate columns 364, and a group of upper template pressure plate pressure cylinder fixing plate guide rod guide sleeves 3621 are fixed at intervals on the side of the upper template pressure plate pressure cylinder fixing plate 362 facing downward. The guide sleeves 3621 of the pressure cylinder fixing plate guide rods are each provided with an upper template pressure plate pressure cylinder fixing plate guide rod 3622. The lower end of the upper template pressure plate pressure cylinder fixing plate guide rod 3622 is fixed to the upper template pressure plate 361 by the upper template pressure plate pressure cylinder fixing plate guide rod screw 36221, and the upper end extends to the upper part of the upper template pressure plate pressure cylinder fixing plate 362 through the upper template pressure plate pressure cylinder fixing plate guide rod guide sleeve 3621. A pair of upper template pressure plate lifting cylinders 363 are arranged on the upper template pressure plate pressure cylinder fixing plate guide rod. The upper template lifting cylinder column 3631 of the upper template platen lifting cylinder 363 extends to the bottom of the upper template platen pressure cylinder fixing plate 362 at the position corresponding to the upper template lifting cylinder column yielding hole 3623 opened on the upper template platen pressure cylinder fixing plate 362 and is fixed to the upper template platen pressure cylinder fixing plate 361 by the cylinder column fixing screw 36311, and the bottom of a group of cylinder fixing plate columns 364 is fixed to the aforementioned workbench 1.

[0039] Before the lithium battery cover plate transfer robot 9 transfers the four lithium battery cover plates 50 on the lithium battery cover plate inspection input mechanism 2 to the lithium battery cover plate airtightness alternating detection mechanism 3, the lithium battery cover plate airtightness alternating detection mechanism 3 has two identical structures to embody alternating detection and achieve the purpose of improving detection efficiency. Figure 7 Taking the state shown as an example, a lithium battery cover plate air tightness alternating detection mechanism 3 on the left is in the process of air tightness detection, while a lithium battery cover plate air tightness alternating detection mechanism 3 on the right is in the state of receiving four lithium battery cover plates 50 extracted from a group of lithium battery cover plate separation devices 28 of the lithium battery cover plate inspection input mechanism 2 by the lithium battery cover plate transfer robot 9. In order to achieve this state, the electric controller 30 drives the air tightness detection carrier forward and backward displacement driving cylinder 313 to operate, so that the air tightness detection carrier forward and backward displacement driving cylinder slide block 3132 drives the vacuum lower template 321 together with the template 322 on the lithium battery cover plate to be tested to move forward and present Figure 7 In the state shown, when the front end face of the vacuum lower template 321 touches the vacuum lower template front position signal collector 3142, the vacuum lower template front position signal collector 3142 feeds back the signal to the electrical controller 30, so that the air tightness detection carrier frame front and rear displacement driving cylinder 313 stops working, so that the lithium battery cover plate transfer manipulator 9, whose structure will be described in detail below, can simultaneously lead four lithium battery cover plates 50 to four lithium battery cover plate detection accommodating chambers 3222. It should be noted that the left and right displacement of the lithium battery cover plate transfer manipulator 9 between each station is driven by the lithium battery cover plate transfer manipulator left and right displacement drive mechanism 8 of the PLC (programmable controller) controlled by the electrical controller 30.

[0040] After the lithium battery cover plate 50 is received in each of the four lithium battery cover plate detection accommodating cavities 3222 of the template 322 on the lithium battery cover plate to be tested, the upward movement of the lithium battery cover plate transfer manipulator 9 feeds back a signal (mentioned below) to the electrical controller 30, and the electrical controller 30 issues a command to drive the airtightness detection carrier to move forward and backward relative to the aforementioned reverse action, so that the lithium battery cover plate airtightness detection carrier 32 moves backward to the bottom of the upper exhaust template 34, and the extent of the rearward displacement of the lithium battery cover plate airtightness detection carrier 32 is such that the rear end face of the lower exhaust template 321 touches the lower exhaust template, and the position signal is collected. The device 3152 is used as the reference. When it is touched, the signal is fed back to the electrical controller 30. As mentioned above, the airtightness detection carrier frame forward and backward displacement driving cylinder 313 stops working, and at the same time, the electrical controller 30 makes a pair of upper template pressing plate lifting cylinders 363 work, and the upper template lifting cylinder column 3631 pushes the upper template pressing plate 361 downward, and the upper template pressing plate 361 pushes the upper template frame 35 together with the vacuum upper template 34 downward, so that the vacuum upper template 34 and the upper template 322 of the lithium battery cover plate to be tested, which plays the effect of the lower mold, are closed to each other, that is, the four lithium battery cover plates 50 are respectively confined in the four lithium battery cover plate detection accommodating chambers 3222.

[0041] In the above state, due to the clamping of the upper vacuum template 34 and the template 322 on the lithium battery cover to be tested, the above-mentioned template clamping signal collector collision block 349 and the template clamping signal collector 3226 generate a signal, so that the template clamping signal collector 3226 feeds back the signal to the electrical controller 30, and the electrical controller 30 sends a command to the vacuum mechanism 10, and the vacuum mechanism 10 works, that is, the vacuum mechanism 10 starts to evacuate. At the same time, due to The backward movement of the lower exhaust template 321 drives the gas guide block 334 to move backward accordingly, and the gas guide block vent hole 3341 on the gas guide block 334 is connected with the valve 333. At this time, the valve 333 is in an open state. When the gas in the gas storage tank (the present invention is a helium gas storage tank) is introduced from the detection gas introduction pipe matching hole 3322 through the pipeline, it passes through the gas guide block vent hole 3341, the detection gas transition introduction pipe 336, the detection gas distribution seat outlet hole 3351 of the detection gas distribution seat 335, and the lithium battery cover. If the lithium battery cover plate 50 still in the lithium battery cover plate detection accommodating cavity 3222 has poor sealing, that is, there is a gas leakage, then under the operation of the vacuum mechanism 10 connected to the upper template exhaust joint 341 through the pipeline, the aforementioned gas (helium) will be discharged from the accommodating cavity outlet 3225 through the lithium battery cover plate 50 in sequence. 0. The upper template air cavity 343, the upper template small air cavity connecting airway 344, the upper template airway 342 and the upper template air extraction joint are led out through the pipeline, and the pressure value of the vacuum mechanism 10 will be reduced to below the set value required by the process, so that the vacuum mechanism 10 will feed back the signal to the electrical controller 30, and as long as any one of the four lithium battery cover plates 50 has a sealing problem, the four lithium battery cover plates are not allowed to flow into the following steps. On the contrary, when there is no sealing problem with the four lithium battery cover plates 50, in order to fully ensure the quality, the aforementioned vacuum pump 40 will perform a vacuum test again, specifically: under the operation of the vacuum pump 40, the gas in the pipeline connected to the vacuum mechanism 10 is extracted and supplied to the mass spectrometer 20. If the mass spectrometer 20 detects helium in the gas, the mass spectrometer 20 will feed back the signal to the electrical controller 30. After the test is completed, the upper template frame pressure device 36 first moves the upper template 34 upward, and then moves the lithium battery cover air tightness test carrier 32 forward to the upper template 34. Figure 7The state shown. If the lithium battery cover plate 50 has the aforementioned sealing problem, the lithium battery cover plate transfer robot 9 will transfer it to the lithium battery cover plate airtightness unqualified inspection product output mechanism 4, and the lithium battery cover plate airtightness unqualified inspection product output mechanism 4 will output it, and after collection, a secondary or multiple sealing screening tests of a selective type will be performed until the lithium battery cover plate 50 with a sealing problem that is finally confirmed is measured; if the lithium battery cover plate 50 does not have a sealing problem (including the secondary detection that the mass spectrometer 20 does not detect helium), the lithium battery cover plate transfer robot 9 will transfer it to the station where the lithium battery cover plate leakage detection mechanism 5 is located. In order to separate the lithium battery cover plate 50 from the upper vacuum template 34 (remove the banknotes from the upper vacuum template 34) quickly, that is, to prevent the lithium battery cover plate 50 from adhering to the downward side of the upper vacuum template 34, the aforementioned lithium battery plate falling-off assisting device 345 assists in falling off. Specifically, under the restoring force of the pushing column action spring 3454, the lithium battery plate falling-off assisting pushing column 3453 is moved downward to push the lithium battery cover plate 50, so that the lithium battery cover plate 50 falls into the lithium battery cover plate detection accommodating chamber 3222, and the aforementioned lithium battery cover plate transporting robot 9 reliably and completely extracts it.

[0042] See also Figure 8 And combined with Figure 1The aforementioned lithium battery cover plate airtightness unqualified detection product output mechanism 4 is located between the left side of the aforementioned lithium battery cover plate airtightness alternating detection mechanism 3 and the right side of the aforementioned lithium battery cover plate leakage detection qualified product output mechanism 6, and the structure of the lithium battery cover plate airtightness unqualified detection product output mechanism 4 is the same as the structure of the lithium battery cover plate leakage detection qualified product output mechanism 6, and the lithium battery cover plate leakage detection qualified product output mechanism 6 includes a lithium battery cover plate leakage detection qualified product conveying belt driving device 61, a lithium battery cover plate leakage detection qualified product left output belt guide 62, a lithium battery cover plate leakage detection qualified product right output belt guide 63, a lithium battery cover plate leakage detection qualified product left output belt 64, a lithium battery cover plate leakage detection qualified product right output belt 67, A pair of output belt guide front fixed support seats 65 and a pair of output belt guide rear fixed support seats 66, the lithium battery cover leakage detection qualified product conveying belt driving device 61 includes a lithium battery cover leakage detection qualified product conveying belt driving motor 611, a lithium battery cover leakage detection qualified product conveying belt driving motor fixing seat 612, a lithium battery cover leakage detection qualified product conveying belt driving driving wheel 613, a lithium battery cover leakage detection qualified product conveying belt driving driven wheel 614, a lithium battery cover leakage detection qualified product conveying belt driving shaft 615 and a master driven wheel connecting belt 616, the lithium battery cover leakage detection qualified product conveying belt driving motor 611 and the lithium battery cover leakage detection qualified product conveying belt driving motor 611 connected to the electrical controller 30 are electrically controlled. The product conveying belt driving motor fixing base 612 is fixed, and the lithium battery cover plate leakage current detection qualified product conveying belt driving motor fixing base 612 is fixed to the left front end of the aforementioned workbench 1, the lithium battery cover plate leakage current detection qualified product conveying belt driving active wheel 613 is fixed to the motor shaft of the lithium battery cover plate leakage current detection qualified product conveying belt driving motor 611, the lithium battery cover plate leakage current detection qualified product conveying belt driving driven wheel 614 is fixed to the middle part of the lithium battery cover plate leakage current detection qualified product conveying belt pulley driving shaft 615 in a flat key fixing manner, and the left end of the lithium battery cover plate leakage current detection qualified product conveying belt pulley driving shaft 615 is rotatably supported on the left bearing support frame 6151 through a left bearing, and the right end is rotatably supported on the right bearing support frame 6151 through a right bearing. On the support frame 6152, the lower parts of the left bearing support frame 6151 and the right bearing support frame 6152 are respectively fixed to the aforementioned workbench 1, one end of the master-slave pulley connecting belt 616 is sleeved on the lithium battery cover plate leakage test qualified product conveying belt driving active wheel 613, and the other end is sleeved on the lithium battery cover plate leakage test qualified product conveying belt driving driven wheel 614, the front end of the left output belt guide 62 of the lithium battery cover plate leakage test qualified product is fixed to a left output belt guide front fixed support seat in a pair of output belt guide front fixed support seats 65, and the rear end of the left output belt guide 62 of the lithium battery cover plate leakage test qualified product is fixed to a left output belt guide rear fixed support seat in a pair of output belt guide rear fixed support seats 66,The right output belt guide 63 of the lithium battery cover plate leakage test qualified product is parallel to the left output belt guide 62 of the lithium battery cover plate leakage test qualified product in the length direction, and the front end is fixed to one of the right output belt guide front fixed support seats 65 in a pair of output belt guide front fixed support seats, and the rear end is fixed to one of the right output belt guide rear fixed support seats 66 in a pair of output belt guide rear fixed support seats. The front end of the left output belt 64 of the lithium battery cover plate leakage test qualified product is sleeved on the left output belt front pulley 641 of the left output belt 64 of the lithium battery cover plate leakage test qualified product, and the rear end is sleeved on the left output belt rear pulley 642 of the left output belt 64 of the lithium battery cover plate leakage test qualified product. The middle part of the qualified product left output belt 64 is in contact with the upper and lower surfaces of the qualified product left output belt guide strip 62 of the lithium battery cover leakage detection, the qualified product left output belt front pulley 641 is fixed on the qualified product lithium battery cover leakage detection qualified product conveying belt drive shaft 615 in a flat key fixing manner at a position between the aforementioned left bearing support frame 6151 and the left side of the lithium battery cover leakage detection qualified product conveying belt drive driven pulley 614, the qualified product left output belt rear pulley 642 is rotatably set on the qualified product left output belt rear pulley shaft 6421, and the qualified product left output belt rear pulley shaft 6421 is fixed on the qualified product left output belt rear pulley shaft seat 6422, and the qualified product left output belt rear pulley shaft seat 6422 is fixed At the rear end of the left output belt guide strip 62 of the lithium battery cover plate leakage detection qualified product, the front end of the right output belt 67 of the lithium battery cover plate leakage detection qualified product is sleeved on the front pulley 671 of the right output belt of the lithium battery cover plate leakage detection qualified product, and the rear end is sleeved on the rear pulley 672 of the right output belt of the lithium battery cover plate leakage detection qualified product, the middle part of the right output belt 67 of the lithium battery cover plate leakage detection qualified product is in contact with the upper and lower surfaces of the right output belt guide strip 63 of the lithium battery cover plate leakage detection qualified product, and the front pulley 671 of the right output belt of the qualified product is located between the right bearing support frame 6152 and the right side of the lithium battery cover plate leakage detection qualified product conveying belt driving driven wheel 614 It is fixed on the aforementioned lithium battery cover leakage detection qualified product conveying pulley drive shaft 615 in a flat key fixing manner, the aforementioned qualified product right output belt rear pulley 672 is rotatably set on the qualified product right output belt rear pulley shaft 6721, and the qualified product right output belt rear pulley shaft 6721 is fixed on the qualified product right output belt rear pulley shaft seat 6722, and the qualified product right output belt rear pulley shaft seat 6722 is fixed to the rear end of the aforementioned lithium battery cover leakage detection qualified product right output belt guide 63, a pair of output belt guide front fixed support seats 65 are fixed to the middle part of the output belt guide front fixed support seat support shaft 651, and the left end of the output belt guide front fixed support seat support shaft 651 is fixed to the aforementioned left bearing support frame 6151,The right end is fixed to the aforementioned right bearing support frame 6152, a pair of output belt guide rear fixed support seats 66 are fixed to the middle of the output belt guide rear fixed support seat support shaft 661, and the two ends of the output belt guide rear fixed support seat support shaft 661 are respectively fixed to a pair of support shaft supports 6611 facing each other, and the lower part of the support shaft supports 6611 is fixed to the aforementioned workbench 1; the aforementioned lithium battery cover leakage detection mechanism 5 corresponds to the upper side of the aforementioned lithium battery cover leakage detection qualified product left output belt guide 62 and the lithium battery cover leakage detection qualified product right output belt guide 63. ,

[0043] Please see the key Figure 1 and Figure 3The above-mentioned lithium battery cover plate transfer robot left and right displacement driving mechanism 8 includes a robot left and right displacement track left fixed frame 81, a robot left and right displacement track right fixed frame 82, a robot left and right displacement track 83, a robot left and right displacement driving motor 84, a robot left and right displacement belt 85, a robot left and right displacement driving active wheel 86 and a robot left and right displacement driving driven wheel 87. The robot left and right displacement track left fixed frame 81 is arranged in a longitudinal state and the lower end of the robot left and right displacement track left fixed frame 81 is fixed to the middle part (middle part in the short side direction) of the side facing upward from the left end of the above-mentioned workbench 1, and the robot left and right displacement track right fixed frame 82 is also arranged in a longitudinal state. The lower end of the right fixing frame 82 of the left-right displacement track of the manipulator is arranged and fixed to the middle part (middle part in the short side direction) of the side facing upward from the right end of the workbench 1, the upper end of the left fixing frame 81 of the left-right displacement track of the manipulator and the upper end of the right fixing frame 82 of the left-right displacement track of the manipulator extend upward in the direction away from the workbench 1, and a guide slider guide bar 831 is formed on the upper surface and lower surface of the length direction of the left-right displacement track 83 of the manipulator and at corresponding positions, the middle part of the left-right displacement track 83 of the manipulator is fixed to the left track fixing seat 811 of the upper end of the left fixing frame 81 of the left-right displacement track of the manipulator, and the left end of the left-right displacement track 83 of the manipulator faces the left fixed frame of the track. The left side of the seat 811 is extended, the right end of the manipulator left-right displacement track 83 is fixed to the track right fixing seat 821 at the upper end of the manipulator left-right displacement track right fixing frame 82 and extends to the right side of the track right fixing seat 821, the manipulator left-right displacement drive motor 84 is electrically connected to the aforementioned electrical controller 30 and is fixed to the right end of the aforementioned manipulator left-right displacement track 83 through the manipulator left-right displacement drive motor seat 841, the manipulator left-right displacement drive motor shaft of the manipulator left-right displacement drive motor 84 faces downward, the manipulator left-right displacement drive driving wheel 86 is fixed on the manipulator left-right displacement drive driving wheel shaft 861, and the manipulator left-right displacement drive driving wheel shaft 8 The upper and lower ends of 61 are rotatably supported on the manipulator left and right displacement driving wheel shaft bearing seat 8611, and the manipulator left and right displacement driving wheel shaft bearing seat 8611 is fixed to the right end of the manipulator left and right displacement track 83, wherein the upper end of the manipulator left and right displacement driving wheel shaft 861 protrudes above the manipulator left and right displacement driving wheel shaft bearing seat 8611 and extends into the aforementioned manipulator left and right displacement driving motor seat 841 and is connected to the manipulator left and right displacement driving motor shaft of the aforementioned manipulator left and right displacement driving motor 84 through the manipulator left and right displacement driving wheel shaft coupling 86111, and the manipulator left and right displacement driving driven wheel 87 ( Figure 1The left and right displacement belt 85 of the manipulator is fixed on the driven wheel shaft 871 of the left and right displacement drive of the manipulator, and the upper and lower ends of the driven wheel shaft 871 of the left and right displacement drive of the manipulator are rotatably supported on the driven wheel shaft bearing seat 8711 of the left and right displacement drive of the manipulator, and the left and right displacement drive driven wheel shaft bearing seat 8711 of the manipulator is fixed to the left end of the left and right displacement track 83 of the manipulator, and the right end of the left and right displacement belt 85 of the manipulator is sleeved on the aforementioned left and right displacement driving active wheel 86 of the manipulator, and the left end is sleeved on the aforementioned left and right displacement driving driven wheel 87 of the manipulator; the aforementioned lithium battery cover plate transfer manipulator 9 is connected to the front side of the aforementioned left and right displacement belt 85 of the manipulator, and is also connected to the aforementioned guide slide The block guide bar 831 is slidably matched, and when the aforementioned manipulator left-right displacement driving motor 84 is working under the control of the aforementioned electrical controller 30, it drives the manipulator left-right displacement belt 85 to move, and the manipulator left-right displacement belt 85 drives the lithium battery cover plate moving manipulator 9 to reciprocate between the station where the aforementioned lithium battery cover plate inspection input mechanism 2 is located, the station where the lithium battery cover plate airtightness alternating detection mechanism 3 is located, the station where the lithium battery cover plate airtightness unqualified inspection product output mechanism 4 is located, and the station where the lithium battery cover plate leakage detection qualified product output mechanism 6 is located. The aforementioned manipulator left-right displacement driving motor 84 is a servo motor with forward and reverse rotation functions.

[0044] Please see the Fig. 9 and Fig.10 And combined with Figure 1The above-mentioned lithium battery cover leakage detection mechanism 5 includes a lithium battery cover right end face guard plate 51, a lithium battery cover left end face guard plate 52, a lithium battery cover support plate 53, a support plate lifting device 54, a lithium battery cover limit plate 55, a leakage detection electrode lifting cylinder fixing frame 56, a leakage detection electrode lifting device 57 and a leakage detection electrode 58. The lithium battery cover right end face guard plate 51 is fixed to the upper ends of a pair of right end face guard plate supporting feet 511 and corresponds to the upper side of the above-mentioned lithium battery cover leakage detection qualified product right output belt 67 in a vacant state, and the lower ends of the pair of right end face guard plate supporting feet 511 are fixed to the right side surface of the above-mentioned lithium battery cover leakage detection qualified product right output belt guide strip 63, and the left end of the lithium battery cover The face guard plate 52 is fixed to the upper ends of a pair of left end face guard plate supporting feet 521, and corresponds to the upper side of the left output belt 64 of the aforementioned lithium battery cover leakage test qualified products in a vacant state, and the lower ends of the pair of left end face guard plate supporting feet 521 are fixed to the left side of the left output belt guide strip 62 of the aforementioned lithium battery cover leakage test qualified products, and the lithium battery cover support plate 53 is connected to the support plate lifting device 54 at a position corresponding to the left output belt guide strip 62 of the lithium battery cover leakage test qualified products and the right output belt guide strip 63 of the lithium battery cover leakage test qualified products, and a lithium battery cover support plate partition block 531 is fixed on the upper side of the lithium battery cover support plate 53, and each two adjacent lithium battery cover support plate partition blocks 531 are fixed. The space between the two ends of the lithium battery cover plate support plate 53 is constituted as a support plate lithium battery cover plate accommodating cavity 5311, and a support plate end stopper 532 is fixed to each end of the lithium battery cover plate support plate 53. The support plate lifting device 54 includes a support plate lifting cylinder fixing frame 541, a support plate lifting cylinder 542 and a support plate guide rod guide plate 543. The middle part of the support plate lifting cylinder fixing frame 541 corresponds to the left output belt guide strip 62 of the lithium battery cover plate leakage test qualified product and the right output belt guide strip 63 of the lithium battery cover plate leakage test qualified product below and also corresponds to the middle part of the length direction of the lithium battery cover plate support plate 53. The right end and the left end of the support plate lifting cylinder fixing frame 541 are each connected by a support plate lifting cylinder fixing frame 541. The fixed frame end plate 5411 is respectively fixed to the right side surface of the right output belt guide strip 63 of the lithium battery cover leakage test qualified product and the left side surface of the left output belt guide strip 62 of the lithium battery cover leakage test qualified product, the support plate lifting cylinder 542 is electrically connected to the aforementioned electrical controller 30 and is fixed to the center position of the support plate lifting cylinder fixing frame 541, the support plate lifting cylinder column 5421 of the support plate lifting cylinder 542 faces upward and is fixed to the side of the aforementioned lithium battery cover support plate 53 facing downward, the middle part of the support plate guide rod guide plate 543 is fixed to the upper part of the cylinder body of the support plate lifting cylinder 542, and a support plate guide rod guide hole 5431 is provided at each end of the support plate guide rod guide plate 543.A supporting plate guide rod 533 is fixed in a longitudinal state in the middle of the downward side of the aforementioned lithium battery cover supporting plate 53 and at a position corresponding to the supporting plate guide rod guide hole 5431. The supporting plate guide rod 533 extends into the supporting plate guide rod guide hole 5431. The leakage detection electrode lifting cylinder fixing frame 56 is fixed to the right side surface of the right output belt guide bar 63 of the aforementioned lithium battery cover leakage detection qualified product through a pair of detection electrode lifting cylinder fixing frame transition connecting plates 561. A lithium battery cover limiting plate fixing connecting strip 562 is fixed in an interval state on the leakage detection electrode lifting cylinder fixing frame 56. The left end of the lithium battery cover limiting plate fixing connecting strip 562 extends in a horizontal cantilever state to the position corresponding to the lithium battery cover limiting plate. A group of lithium battery cover plate limiting plate connecting rods 5621 are fixed at intervals above the fixed plate 55, and the lithium battery cover plate limiting plate connecting rods 5621 extend downward in the direction of the lithium battery cover plate limiting plate 55. The upper side of the lithium battery cover plate limiting plate 55 is fixed to the lithium battery cover plate limiting plate connecting rods 5621, and a lithium battery plate limiting block 551 is fixed on the lower side of the lithium battery cover plate limiting plate 55 and at a position corresponding to the aforementioned supporting plate lithium battery cover plate accommodating concave cavity 5311. The lower side of the lithium battery plate limiting block 551 is formed with a lithium battery plate limiting block groove 5511, and the lithium battery plate limiting block groove 5511 corresponds to and cooperates with the supporting plate lithium battery cover plate accommodating concave cavity 5311. The plate 55 is provided with a limiting plate position signal collector 552 electrically connected to the aforementioned electrical controller 30. The leakage detection electrode lifting device 57 includes a push plate lifting cylinder 571, a push plate 572 and a leakage detection electrode fixing block 573. The number of the push plate lifting cylinders 571 is equal to the number of the aforementioned supporting plate lithium battery cover accommodating concave cavities 5311 (four in this embodiment) and is arranged at intervals on the aforementioned leakage detection electrode lifting cylinder fixing frame 56. The push plate lifting cylinder 571 has a push plate lifting cylinder up and down displacement controller 5711 electrically connected to the aforementioned electrical controller 30. The push plate lifting cylinder column 5712 of the push plate lifting cylinder 571 faces downward and passes through the leakage detection The electrode lifting cylinder fixing frame 56, the number of push plates 572 is equal to the number of push plate lifting cylinders 571 (four in this embodiment), and the push plate 572 is fixed to the aforementioned push plate lifting cylinder column 5712 at a position below the leakage detection electrode lifting cylinder fixing frame 56, and a push plate lifting guide rod 5721 is fixed on the upper side and at the right end of the push plate 572, and the push plate lifting guide rod 5721 corresponds to the push plate lifting guide rod guide hole 563 provided on the leakage detection electrode lifting cylinder fixing frame 56, the number of leakage detection electrode fixing blocks 573 is equal to the number of push plates 572, and each push plate 572 is allocated with a leakage detection electrode fixing block 573,The right end of the leakage detection electrode fixing block 573 is fixed to the left end of the upward side of the push plate 572, and the left end of the leakage detection electrode fixing block 573 extends to the left in a horizontal cantilever state. There are four pairs of leakage detection electrodes 58, and each is electrically connected to the aforementioned electrical controller 30 through a line. A pair of leakage detection electrodes 58 is fixed to the left end of each leakage detection electrode fixing block 573, and the pair of leakage detection electrodes 58 is located on the right side of the aforementioned lithium battery cover limiting plate 55.

[0045] Please see the key Figure 3 And continue to combine Figure 1 The lithium battery cover plate transfer manipulator 9 includes a guide slider fixing plate 91, an upper guide slider 92a, a lower guide slider 92b, a lifting push plate 93, a suction cup frame fixing plate 94, a suction cup frame 95, a suction cup 96, a lifting push plate actuating cylinder 97 and a manipulator left and right displacement belt fixing block 98. The rear side of the guide slider fixing plate 91 is fixed to the upper guide slider 92a and the lower guide slider 92b, and a pair of lifting push plate sliding guide rails 911 are fixed to the front side of the guide slider fixing plate 91 at intervals in a longitudinal state. A lifting push plate is also provided on the guide slider fixing plate 91. The upper limit position signal collector 912 of the push plate is fixed with a lower limit block 913 on the right side of the lower end of the guide slider fixing plate 91, and a lower limit position signal collector 9131 of the lift push plate is provided on the lower limit block 913, which is electrically connected to the electrical controller 30. The lift push plate actuating cylinder 97 is electrically controlled and connected to the electrical controller 30. The lift push plate actuating cylinder 97 is fixed on the cylinder fixing plate 971 in a longitudinal state, and the lift push plate actuating cylinder column 972 of the lift push plate actuating cylinder 97 extends to the bottom of the cylinder fixing plate 971, and the upper guide slider The guide slider 92a and the lower guide slider 92b are respectively slidably matched with the upper surface and the lower surface of the guide slider guide strip 831 in the length direction of the above-mentioned robot left and right displacement track 83. The rear side of the lifting push plate 93 is slidably matched with a pair of lifting push plate sliding guide rails 911 through the lifting push plate slider 931 corresponding to the above-mentioned pair of lifting push plate sliding guide rails 911. The center position of the upper end of the lifting push plate 93 is connected to the above-mentioned lifting push plate actuating cylinder column 972. On the right side surface of the upper end of the lifting push plate 93 and below the limit position signal collector 912 corresponding to the above-mentioned lifting push plate There is a limit position signal collector trigger block 932 fixed on the push plate, the middle of the length direction of the suction cup frame fixing plate 94 and the upper side are fixed to the lower end of the lifting push plate 93, the suction cup frame 95 has a group of spaced-apart suction cup frames 95 and the middle of this group of suction cup frames 95 is fixed to the suction cup frame fixing plate 94, and the aforementioned suction cups 96 are fixed at both ends of each suction cup frame fixing plate 94, and the suction cups 96 are connected to the negative pressure generating device by a pipeline, and the manipulator left and right displacement belt fixing block 98 is fixed between the aforementioned guide slider fixing plate 91 and the front side of the aforementioned manipulator left and right displacement belt 85.

[0046] Since the aforementioned robot left and right displacement drive motor 84 controlled by the electrical controller 30 is a servo motor with forward and reverse rotation functions, and it causes the robot left and right displacement belt 85 to move left or right and the distance that the robot left and right displacement belt 85 moves are all controlled by the PLC of the electrical controller 30.

[0047] See also Fig.10 And combined with Figure 1, the lithium battery cover leakage detection unqualified product removal mechanism 7 includes a workbench fixed vertical plate 71, a slide rail seat fixed plate 72, a left slide rail seat 73, a right slide rail seat 74, a linear cylinder 75, a linear cylinder slider 76, a unqualified product suction nozzle fixed plate lifting cylinder 77, an unqualified product suction nozzle fixed plate 78 and a pair of unqualified product suction nozzles 79. The bottom of the workbench fixed vertical plate 71 is fixed to the aforementioned workbench 1, and the upper part of the workbench fixed vertical plate 71 extends upward in the direction away from the workbench 1. The left end of the slide rail seat fixed plate 72 is fixed to the upper rear side of the workbench fixed vertical plate 71, and the right end of the slide rail seat fixed plate 72 corresponds to the aforementioned lithium battery cover leakage detection qualified product left output belt guide 62 and the lithium battery The left rail seat 73 is fixed to the rear side of the left end of the rail seat fixing plate 72, and a left rail seat signal collector 731 is arranged on the left rail seat 73. The right rail seat 74 is fixed to the rear side of the right end of the rail seat fixing plate 72, and a right rail seat signal collector 741 is arranged on the right rail seat 74. A rail seat reinforcement strip 742 is fixed between the upper parts of the left rail seat 73 and the right rail seat 74. The length direction of the rail seat reinforcement strip 742 and the side facing upward form a line laying groove 7421. The linear cylinder 75 is fixed between the left rail seat 73 and the right rail seat 74. The middle part of the linear cylinder slider 76 is connected to the linear cylinder 75. The upper and lower ends of the linear cylinder slider 76 are respectively slidably matched with the linear cylinder slider guide rod 761, and the linear cylinder slider guide rod 761 is fixed between the aforementioned left slide rail seat 73 and the right slide rail seat 74. The unqualified product suction nozzle fixing plate lifting cylinder 77 is fixed to the aforementioned linear cylinder slider 76 through the unqualified product suction nozzle fixing plate lifting cylinder seat 771. A slide plate collision block 772 is fixed on the top of the unqualified product suction nozzle fixing plate lifting cylinder 77, and a slide plate rising limit position signal collector 7721 is fixed on the slide plate collision block 772. A slide plate collision head signal collector fixing seat 773 is fixed on the bottom of the unqualified product suction nozzle fixing plate lifting cylinder 77. A slide plate descent limit position signal collector 7731 is provided on the fixed seat 773, the upper end surface of the slide plate 774 of the unqualified product suction nozzle fixing plate lifting cylinder 77 corresponds to the aforementioned slide plate descent limit position signal collector 7721, and the slide plate collision head 7741 formed on the right side of the slide plate 774 corresponds to the slide plate descent limit position signal collector 7731, the middle part of the unqualified product suction nozzle fixing plate 78 is fixed to the lower end of the suction nozzle fixing plate support frame 781 in an L shape, and the upper end of the suction nozzle fixing plate support frame 781 is fixed to the aforementioned slide plate 774, a pair of unqualified product suction nozzles 79 are respectively fixed to the two ends of the unqualified product suction nozzle fixing plate 78, and are connected to the negative pressure generating device through a pipeline when in use;The left slide rail seat signal collector 731, the right slide rail seat signal collector 741, the linear cylinder 75, the slide plate rising limit position signal collector 7721, the slide plate falling limit position signal collector 7731, the unqualified product suction nozzle fixing plate lifting cylinder 77 and the negative pressure generating device are electrically controlled and connected to the electrical controller 30. ;

[0048] Since the aforementioned lithium battery cover plate airtightness unqualified product output mechanism 4 is in working state from beginning to end during the process of the entire device of the present invention detecting the lithium battery cover plate 50, that is, when the entire device is in working state, the applicant will not elaborate on it.

[0049] When the lithium battery cover plate air tightness alternate detection mechanism 3 detects a lithium battery cover plate 50 with unqualified air tightness, the lithium battery cover plate transfer manipulator 9 driven by the left and right displacement driving mechanism 8 of the lithium battery cover plate transfer manipulator moves to the position where the lithium battery cover plate air tightness detection carrier 32 is located. At this time, the lithium battery cover plate air tightness detection carrier 32 is located by Figure 7 The front shown (as Figure 7 The position state shown in FIG. 1 is a position where a lithium battery cover airtightness detection carrier 32 is located on the right side of the lithium battery cover. In this state, Figure 3 and Figure 1 The lithium battery cover plate transfer robot 9 shown in the figure transfers the lithium battery that fails the airtightness test to the workstation where the aforementioned lithium battery cover plate airtightness unqualified detection product output mechanism 4 is located, and transfers the lithium battery cover plate 50 that passes the airtightness test to the workstation where the lithium battery cover plate leakage detection mechanism 5 is located.

[0050] The applicant explains the extraction and release of the lithium battery cover 50 that has passed the airtightness test by the above-mentioned lithium battery cover plate transferring robot 9 as follows: that is, the process of the lithium battery cover plate transferring robot 9 extracting the lithium battery cover 50 at the workstation where the lithium battery cover plate airtightness alternating detection mechanism 3 is located and transferring and releasing the extracted lithium battery cover 50 to the lithium battery cover plate leakage detection mechanism 5 is explained as follows.

[0051] Before describing the working process of the aforementioned lithium battery cover plate transferring robot 9, the aforementioned lithium battery cover plate transferring robot left and right displacement drive mechanism 8 is described first. After completing the separation of the lithium battery cover plate 50 and the lithium battery cover plate transferring robot left and right displacement drive mechanism 8 completing the detection, the electrical controller 30 sends a working instruction to the robot left and right displacement drive motor 84, and the robot left and right displacement drive motor 84 works, and the robot left and right displacement drive motor shaft drives the robot left and right displacement drive driving wheel shaft 861 through the robot left and right displacement drive driving wheel shaft coupling 86111, and the robot left and right displacement drive driving wheel shaft 861 drives the robot left and right displacement belt 85 through the robot left and right displacement drive driving wheel 86, and the robot left and right displacement belt 85 drives the guide slider fixing plate 91 through the robot left and right displacement belt fixing block 98 connected thereto, and the upper and lower guide sliders 92a, 92b move along the aforementioned guide slider guide bar 831, for example, move to the position where the upper and lower guide sliders 92a, 92b move along the aforementioned guide slider guide bar 831. Figure 1 The position shown in the figure is used so that the lithium battery cover plate transfer manipulator 9 can extract the lithium battery cover plate 50 that has completed the airtightness test at this position. Specifically, under the instruction of the electrical controller 30, the lifting and pushing plate actuating cylinder 97 works, and the lifting and pushing plate actuating cylinder column 972 pushes the lifting and pushing plate 93 downward. When the upper limit position signal collector trigger block 932 of the push plate touches the lower limit position signal collector 9131 of the lifting and pushing plate, the lower limit position signal collector 9131 of the lifting and pushing plate feeds back the signal to the electrical controller 30, and the electrical controller 30 stops the lifting and pushing plate actuating cylinder 97. At this time, the four pairs of suction cups 96 are respectively in contact with the lithium battery cover plate 50 that is still in the lithium battery cover plate detection accommodating chamber 3222. Under the operation of the negative pressure generating device, that is, the negative pressure generator such as a vacuum pump or a similar device, the suction cup 96 is sucked through the pipeline, so that the suction cup generates negative pressure and sucks the lithium battery cover plate 50. Next, the lifting and pushing plate actuating cylinder 97 works in the reverse direction, so that the lithium battery cover plate 50 in the state of being sucked by the suction cup 96 leaves the lithium battery cover plate detection accommodating chamber 3222, until the upper limit position signal collector trigger block 932 of the push plate touches the upper limit position signal collector 912 of the lifting and pushing plate, and the upper limit position signal collector 912 of the lifting and pushing plate feeds back the signal to the electrical controller 30, and the electrical controller 30 stops the lifting and pushing plate actuating cylinder 97. Next, under the condition that the manipulator left and right displacement drive motor 84 works in the reverse direction relative to the aforementioned working direction, the manipulator left and right displacement belt 85 drives the entire lithium battery cover plate transfer manipulator 9 to run to the station where the lithium battery cover plate leakage detection mechanism 5 is located while sucking the lithium battery cover plate 50, so as to detect whether the lithium battery cover plate 50 is leaking or not.

[0052] When, under the control of the PLC of the electrical controller 30, the lithium battery cover plate transfer robot 9 reaches the position in front of the lithium battery cover plate leakage detection mechanism 5, specifically, reaches Figure 1 In front (front end) of the left and right output belts 64 and 67 of the lithium battery cover plate leakage test qualified products shown in the figure, the aforementioned negative pressure generating device, that is, the negative pressure generator such as a vacuum pump or other similar device stops working, so that the suction cup 96 is at a positive pressure, and the four lithium battery cover plates 50 previously sucked by the suction cup 96 are released simultaneously to the left and right output belts 64 and 67 of the lithium battery cover plate leakage test qualified products, and then the lifting push plate actuating cylinder column 972 rises, and when the limit position signal collector trigger block 932 on the push plate touches the limit position signal collector 912 on the lifting push plate, the limit position signal collector 912 on the lifting push plate sends a signal to the electrical controller 30, and the electrical controller 30 makes the lithium battery cover plate leakage test qualified product conveying belt drive motor 611 work, so that the four lithium battery cover plates 50 located on the left and right output belts 64 and 67 of the lithium battery cover plate leakage test qualified products correspond to the lithium battery cover plate supporting plate 53. When the lithium battery cover plate leakage test qualified product conveying belt drive motor 611 stops working, the electrical controller 30 sends out a command to make the supporting plate lifting cylinder 542 work, and the supporting plate lifting cylinder column 5421 extends upward, that is, outside the cylinder body, and pushes the lithium battery cover plate supporting plate 53 with the lithium battery cover plate 50 released to extend upward until the lithium battery cover plate 50 is in the lithium battery plate limiting block groove 5511 corresponding to the lithium battery plate limiting block 551 of the lithium battery cover plate limiting plate 55, that is, the four lithium battery cover plates 50 are limited in the lithium battery plate limiting block groove 5511 and the supporting plate lithium battery cover plate accommodating cavity 5311 by the cooperation of the four lithium battery plate limiting blocks 551 and the lithium battery cover plate supporting plate 53. At this time, due to the upward movement of the lithium battery cover plate supporting plate 53, the signal of the lithium battery cover plate 50 is collected by the limiting plate position signal collector 552 and fed back to the electrical controller 30, and the electrical controller 30 issues work instructions to the four push plate lifting cylinders 571 in turn. This is because the test of the four lithium battery cover plates 50 is carried out one by one, and since the test method of the four push plate lifting cylinders 571 is exactly the same, the applicant only explains the test of the first lithium battery cover plate 50 in the front below.

[0053] Under the operation of the push plate lifting cylinder 571, the push plate lifting cylinder column 5712 moves downward to move the push plate 572 downward, and the push plate 572 drives the leakage detection electrode fixing block 573, and the leakage detection electrode fixing block 573 drives a pair of leakage detection electrodes 58 downward, so that one of the leakage detection electrodes 58 contacts the electrode sheet 502 of the lithium battery cover 50, and the other leakage detection electrode of the pair of leakage detection electrodes 58 contacts the body 501 of the lithium battery cover 50 insulated and isolated by insulating materials, and the electrode sheet 502 and the body 501 are separated by an insulating sheet such as plastic insulation (not conductive to each other). If the aforementioned electrode sheet 502 and the body 501 (i.e., the lithium battery cover body) are not conductive, it indicates that there is no leakage, otherwise the electrical controller 30 is informed of the leakage. It should be noted that the downward and upward movement of the push plate lifting cylinder column 5712 of the aforementioned push plate lifting cylinder 571 is determined by the up and down displacement of the aforementioned push plate lifting cylinder controlled by the electrical controller 30 .

[0054] After the above-mentioned lithium battery cover leakage detection mechanism 5 completes the leakage detection of the lithium battery cover 50, the leakage detection electrode 58 moves upward and leaves the lithium battery cover 50, and the aforementioned supporting plate lifting cylinder 542 moves downward, driving the lithium battery cover supporting plate 53 to move downward, so that the two ends of the lithium battery cover 50 that has completed the leakage detection are placed on the left and right output belts 64 and 67 of the lithium battery cover leakage detection qualified products, and the electrical controller 30 issues an instruction to make the lithium battery cover leakage detection qualified product conveying belt drive motor 611 work until the left and right output belts 64 and 67 of the lithium battery cover leakage detection qualified products move; when the unqualified lithium battery cover 50 that was previously detected to have leakage passes through the position corresponding to the lithium battery cover leakage detection unqualified product removal mechanism 7, then at this position, the left and right output belts 64 and 67 of the lithium battery cover leakage detection qualified products are suspended for the lithium battery cover leakage detection unqualified product removal mechanism 7 to remove, otherwise they are directly output.

[0055] The applicant explains the working process of the above-mentioned lithium battery cover plate leakage detection defective product removal mechanism 7 as follows: since the electrical controller 30 has a PLC, and the PLC automatically records whether any of the four lithium battery cover plates 50 from the first to the fourth has leakage or not, therefore, during the process of the lithium battery cover plate leakage detection qualified product being output by the left and right output belts 64 and 67, when the lithium battery cover plate 50 with leakage detected in the above-mentioned leakage test passes through the lithium battery cover plate leakage detection defective product removal mechanism 7, the electrical controller 30 sends a stop instruction to the lithium battery cover plate leakage detection qualified product conveying belt drive motor 611 and simultaneously sends a work instruction to the defective product suction nozzle fixing plate lifting cylinder 77 and causes a negative pressure generating device such as a vacuum pump or other similar device connected to the defective product suction pipe 79 through a pipeline to work. Under the operation of the unqualified product suction nozzle fixing plate lifting cylinder 77, the slide plate 7741 drives the suction nozzle fixing plate support frame 781, the unqualified product suction nozzle fixing plate 78 and a pair of unqualified product suction nozzles 79 downward, and the downward degree is based on the slide plate collision head 7741 touching the slide plate descending limit position signal collector 7731. At this time, the pair of unqualified product suction nozzles 79 are in contact with the aforementioned leaking lithium battery cover 50 and suck it under the action of negative pressure. Immediately afterwards, the unqualified product suction nozzle fixing plate lifting cylinder 77 works in the reverse direction to make the pair of unqualified product suction nozzles 79 move upward while sucking the leaking lithium battery cover 50. The upward displacement degree is based on the upper end surface of the slide plate 774 touching the slide plate rising limit position signal collector 7721. At this time, the slide plate rising limit position signal collector The collector 7721 feeds back the signal to the electrical controller 30, which feeds it to the linear cylinder 75. The operation of the linear cylinder 75 causes the linear cylinder slider 76, together with the unqualified product suction nozzle fixing plate lifting cylinder seat 771, the unqualified product suction nozzle fixing plate lifting cylinder 77, the slide plate 774, the suction nozzle fixing plate support frame 781, the unqualified product suction nozzle fixing plate 78, a pair of unqualified product suction nozzles 79, and the leaking lithium battery cover plate 50 still being sucked by the pair of unqualified product suction nozzles 79 to move to the right to the top of the lithium battery cover plate airtight unqualified inspection product output mechanism 4. At this time, the linear cylinder slider 76 hits the left slide rail seat signal collector 731, which gives a signal to the electrical controller 30, and the electrical controller 30 stops the linear cylinder 75 from working. Then the above-mentioned unqualified product suction nozzle fixing plate lifting cylinder 77 works in the reverse direction, according to the above-mentioned reverse process until the slide plate descends to the limit position. The signal collector 7731 is hit by the slide plate collision head 7741 and feeds back the signal to the electrical controller 30, and the electrical controller 30 sends the signal to the above-mentioned negative pressure generating device, so that a pair of unqualified product suction nozzles 79 are under positive pressure and the leaking lithium battery cover plate 50 is released to the above-mentioned lithium battery cover plate airtightness unqualified inspection product output mechanism 4 and outputted by it.Then, according to the reverse process mentioned above, the linear cylinder 75 moves the unqualified product suction nozzle fixing plate lifting cylinder 77 to the left to the upper main position corresponding to the left and right output belts 64 and 67 of the above-mentioned lithium battery cover leakage test qualified products. The degree of leftward displacement of the linear cylinder 75 is based on the linear cylinder slider 76 touching the right slide rail seat signal collector 741. If the collision is timely, it will give a signal to the electrical controller 30, and the electrical controller 30 will again drive the lithium battery cover leakage test qualified product conveying belt drive motor 611 and make it work to output the qualified lithium battery cover 50. Otherwise, the above method is repeated and the unqualified lithium battery cover leakage test product removal mechanism 7 will remove it.

[0056] It should be noted that the concept of working cylinder mentioned in this application basically refers to the air cylinder.

[0057] In summary, the technical solution provided by the present invention makes up for the shortcomings of the existing technology, successfully completes the invention task, and faithfully realizes the technical effects stated by the applicant in the technical effect column above.

Claims

1. A lithium battery cover plate airtightness detection device of a lithium battery cover plate testing machine, the lithium battery cover plate testing machine comprising a workbench (1), a lithium battery cover plate inspection input mechanism (2), a lithium battery cover plate transfer robot left-right displacement driving mechanism (8), a lithium battery cover plate transfer robot (9), a vacuum pumping mechanism (10), a mass spectrometer (20) and an electrical controller (30), the lithium battery cover plate inspection input mechanism (2) is arranged on the right side of the workbench (1) facing upward, the lithium battery cover plate transfer robot left-right displacement driving mechanism (8) is fixed to the workbench (1) in a state of being suspended from left to right above the long side direction of the workbench (1), and the lithium battery cover plate transfer robot (9) moves left-right. The invention relates to a lithium battery cover plate transport robot, which is arranged on the left-right displacement driving mechanism (8) of the lithium battery cover plate transport robot and is transmission-connected to the left-right displacement driving mechanism (8) of the lithium battery cover plate transport robot; a vacuum pumping mechanism (10) is arranged on the right side of the workbench (1) facing downward and is connected to the mass spectrometer (20) by a pipeline; the mass spectrometer (20) is arranged at the left end of the workbench (1); an electrical controller (30) is arranged below the right end of the workbench (1); the lithium battery cover plate inspection input mechanism (2), the left-right displacement driving mechanism (8) of the lithium battery cover plate transport robot, the lithium battery cover plate transport robot (9), the vacuum pumping mechanism (10) and the mass spectrometer (20) are all electrically controlled and connected to the electrical controller (30); and it is characterized in that The lithium battery cover plate airtightness detection device comprises a lithium battery cover plate airtightness alternating detection mechanism (3), the lithium battery cover plate airtightness alternating detection mechanism (3) is arranged on the workbench (1) at a position located on the left side of the lithium battery cover plate inspection input mechanism (2) and is electrically controlled and connected to the electrical controller (30), the vacuum pumping mechanism (10) is connected to the lithium battery cover plate airtightness alternating detection mechanism (3) by a pipeline, and the lithium battery cover plate transfer robot (9) transfers the lithium battery cover plate input by the lithium battery cover plate inspection input mechanism (2) to the workbench (1) and the electrical controller (30) ...) The lithium battery cover plate air tightness alternating detection mechanism (3) is provided to the lithium battery cover plate air tightness alternating detection mechanism (3) and moves to a subsequent workstation after the lithium battery cover plate air tightness alternating detection mechanism (3) completes the air tightness detection of the lithium battery cover plate; the lithium battery cover plate air tightness alternating detection mechanism (3) has a pair of corresponding left and right lithium battery cover plate air tightness alternating detection mechanisms (3), each of the pair of lithium battery cover plate air tightness alternating detection mechanisms (3) comprises a lithium battery cover plate air tightness detection carrier frame front and rear displacement driving device (31), a lithium battery cover plate air tightness detection carrier frame (32), a detection gas introduction device (33), an air extraction upper template (34), and an upper The template frame (35) and an upper template frame pressure device (36) are provided. The lithium battery cover plate airtightness detection carrier frame forward and backward displacement driving device (31) is fixed on the workbench (1) at a position located on the left side of the lithium battery cover plate inspection input mechanism (2). In the use state, the lithium battery cover plate airtightness detection carrier frame forward and backward displacement driving device (31) is electrically connected to the electrical controller (30). The lithium battery cover plate airtightness detection carrier frame (32) is arranged on the lithium battery cover plate airtightness detection carrier frame forward and backward displacement driving device (31) so as to move forward and backward. The detection gas introduction device (33) is arranged on the lithium battery cover plate air tightness detection carrier (32), and is connected to the detection gas supply source by a pipeline in the use state. The upper exhaust template (34) corresponds to the top of the lithium battery cover plate air tightness detection carrier (32) and is fixed to the lower side of the upper template frame (35), and the upper template frame (35) is connected to the upper template frame pressure device (36) in an up-and-down floating manner at a position below the upper template frame pressure device (36); the vacuum extraction mechanism (10) is connected to the upper exhaust template (34) by a pipeline;The lithium battery cover plate airtightness detection carrier frame forward and backward displacement driving device (31) comprises an airtightness detection carrier frame left guide rail (311), an airtightness detection carrier frame right guide rail (312), an airtightness detection carrier frame forward and backward displacement driving cylinder (313), a first air-exhausting lower template front limit block (314) and an air-exhausting lower template rear limit block (315); the airtightness detection carrier frame left guide rail (311) and the airtightness detection carrier frame right guide rail (312) are fixed on the workbench (1) in a state where they correspond to each other on the left and right and are parallel to each other in the length direction; and a cylinder (313) is slidably provided on the airtightness detection carrier frame left guide rail (311). A pair of airtightness detection frame left guide rail sliders (3111), and a pair of airtightness detection frame right guide rail sliders (3121) are slidably arranged on the airtightness detection frame right guide rail (312), the airtightness detection frame front and back displacement driving cylinder (313) is located between the airtightness detection frame left guide rail (311) and the airtightness detection frame right guide rail (312), the front end and the rear end of the airtightness detection frame front and back displacement driving cylinder (313) are respectively fixed on an airtightness detection frame front and back displacement driving cylinder fixing seat (3131), and the airtightness detection frame front and back displacement driving cylinder (313) is fixed on the airtightness detection frame front and back displacement driving cylinder fixing seat (3131). ) and the workbench (1), an anti-interference space for the slider of the front-to-back displacement driving cylinder of the air-tightness detection carrier is maintained; the bottom of the front-to-back displacement driving cylinder fixing seat (3131) of the air-tightness detection carrier is fixed to the workbench (1); the first air-extraction lower template front limit block (314) is fixed on the workbench (1) at a position corresponding to the front end of the front-to-back displacement driving cylinder (313) of the air-tightness detection carrier, and an air-extraction lower template front buffer (3141) and an air-extraction lower template front position signal collector (3142) are arranged on the rear side of the first air-extraction lower template front limit block (314); The positioning block (315) is fixed on the workbench (1) at a position corresponding to the rear end of the front-rear displacement driving cylinder (313) of the airtightness detection carrier and corresponds to the first air-extraction lower template front limiting block (314), and a rear air-extraction lower template buffer and a rear air-extraction lower template position signal collector (3152) are arranged on the front side of the rear air-extraction lower template limit block (315); the front-rear displacement driving cylinder (313) of the airtightness detection carrier, the front air-extraction lower template position signal collector (3142) and the rear air-extraction lower template position signal collector (3152) are electrically controlled and connected to the electrical controller (30);The lithium battery cover plate airtightness detection carrier (32) is simultaneously connected to the pair of airtightness detection carrier left guide sliders (3111), the pair of airtightness detection carrier right guide sliders (3121) and the airtightness detection carrier front and rear displacement driving cylinder cylinder sliders (3132) of the airtightness detection carrier front and rear displacement driving cylinder (313) and corresponds to between the first air-exhausting lower template front limit block (314) and the air-exhausting lower template rear limit block (315); the upper template frame pressure device (36) together with the air-exhausting upper template (34) and the upper template frame (35) is connected to the ... barrel sliders (3132) of the airtightness detection carrier front and rear displacement driving cylinder (313) The vacant state corresponds to the upper rear end of the left guide rail (311) of the air tightness detection carrier, the right guide rail (312) of the air tightness detection carrier, and the front and rear displacement driving cylinder (313) of the air tightness detection carrier; the detection gas introduction device (33) arranged on the air tightness detection carrier (32) of the lithium battery cover plate is also connected to the rear limit block (315) of the exhaust lower template; an exhaust upper template exhaust joint (341) is connected to the exhaust upper template at the rear end on the exhaust upper template (34), and the vacuum pumping mechanism (10) is connected to the exhaust upper template exhaust joint (341) by a pipeline;The lithium battery cover plate air tightness detection carrier (32) comprises an air-extraction lower template (321) and an upper template (322) for the lithium battery cover plate to be tested. A pair of air-extraction lower template left fixing blocks (3211) are fixed at the bottom of the air-extraction lower template (321) and at positions corresponding to the pair of air-tightness detection carrier left guide rail sliders (3111), and a pair of air-extraction lower template right fixing blocks (3212) are fixed at positions corresponding to the pair of air-tightness detection carrier right guide rail sliders (3121). The pair of air-extraction lower template left fixing blocks (3211) are fixed to the pair of air-tightness detection carrier left guide rail sliders (3111), and the pair of air-extraction lower template right fixing blocks (3212) are fixed to the pair of air-tightness detection carrier left guide rail sliders (3111), and the pair of air-extraction lower template right fixing blocks (3212) are fixed to the pair of air-tightness detection carrier left guide rail sliders (3111). The right guide rail slider (3121) of the air tightness detection carrier is fixed, and a second air-extraction lower template front limit block (3213) is fixed in the middle of the side of the front end of the air-extraction lower template (321) facing downward, and the front side surface of the second air-extraction lower template front limit block (3213) corresponds to the air-extraction lower template front buffer (3141) and the air-extraction lower template front position signal collector (3142), and a cylinder barrel clearance cavity (32131) corresponding to the air-tightness detection carrier front and rear displacement driving cylinder (313) is formed at the center position of one end of the second air-extraction lower template front limit block (3213), and the rear end surface of the air-extraction lower template (321) is connected to the air-extraction lower template rear buffer with a The lower template (321) is fixed to the airtightness detection frame by screws at the center of the side facing downward and the cylinder slide block (3132) of the front-rear displacement driving cylinder. The left and right sides of the upper template (322) on the lithium battery cover to be tested are respectively fixed to the upper part of a support plate (3221) for the lithium battery cover to be tested, and the lower part of the support plate (3221) for the lithium battery cover to be tested is fixed to the side facing upward of the lower template (321). A lithium battery cover detection accommodating cavity (3222) is formed on the side facing upward of the template (322) on the lithium battery cover to be tested in a spaced state from front to back. The lithium battery cover detection accommodating cavity (3222) 222) is divided into a group of small cavities by separating convex strips, a lithium battery cover plate detection accommodating cavity air duct matching hole (3223) is provided on the template (322) on the lithium battery cover plate to be tested and at a position corresponding to the right end of the lithium battery cover plate detection accommodating cavity (3222), the lithium battery cover plate detection accommodating cavity air duct matching hole (3223) is communicated with the accommodating cavity vent groove (3224) provided at the lithium battery cover plate detection accommodating cavity (3222), the accommodating cavity vent groove (3224) is communicated with the lithium battery cover plate detection accommodating cavity (3222) through the accommodating cavity air outlet holes (3225) distributed at intervals, and each small cavity separated by the separating convex strip corresponds to a accommodating cavity air outlet hole (3225);The detection gas introduction device (33) comprises a valve seat sliding frame (331), a valve seat (332), a valve (333), an air guide block (334), a detection gas distribution seat (335), a detection gas transition introduction pipe (336) and a lithium battery cover plate detection accommodating cavity air guide pipe (337); the valve seat sliding frame (331) is fixed to the upper part of the rear limit block (315) of the exhaust lower template; the valve seat (332) is slidably matched with the front side of the valve seat sliding frame (331) through a pair of valve seat guide rods (3321) fixed to the valve seat sliding frame (331); A valve seat thrust spring (33211) is sleeved on the valve seat guide rod (3321) and at the upper front side of the valve seat sliding frame (331) and the rear side of the valve seat (332). A detection air inlet pipe matching hole (3322) is also provided on the valve seat (332). The valve (333) is arranged on the valve seat (332) and corresponds to the air guide block vent (3341) of the air guide block (334). The air guide block (334) is fixed at the rear end of the air exhaust lower template (321) and corresponds to the valve seat (332). The detection air distribution The seat (335) is fixed to the exhaust lower template (321) at a position corresponding to the front of the air guide block (334), one end of the detection gas transition introduction pipe (336) is fixed to the air guide block (334) at a position corresponding to the air vent (3341) of the air guide block, and the other end is matched with the detection gas distribution seat air inlet hole of the detection gas distribution seat (335), and the detection gas distribution seat (335) is provided with a number of detection gas distribution seat outlet holes (3351) equal to the number of the lithium battery cover plate detection accommodating cavity air guide pipe matching holes (3223), and the lithium battery cover plate detection accommodating cavity air guide pipe (337) is connected to the detection gas distribution seat (335) of the detection gas distribution seat (335). The number of the upper template frame (36) is equal to the number of the detection gas distribution seats (335), and one end is fixed to the detection gas distribution seat (335) at a position corresponding to the detection gas distribution seat outlet hole (3351), while the other end of the lithium battery cover plate detection accommodating cavity air guide tube (337) is fixed to the template (322) on the lithium battery cover plate to be tested at a position corresponding to the lithium battery cover plate detection accommodating cavity air guide tube matching hole (3223); the upper template frame pressure device (36) together with the upper exhaust template (34) and the upper template frame (35) correspond to the upper part of the template (322) on the lithium battery cover plate to be tested in a vacant state;An upper exhaust template air duct (342) is provided on the upper exhaust template (34) in a state parallel to the length direction of the upper exhaust template (34). The front end of the upper exhaust template air duct (342) is sealed by a front plug screw (3421) and a sealing ring is added, while the rear end corresponds to and communicates with the upper exhaust template exhaust joint (341). An upper exhaust template air cavity (343) is formed on the side of the upper exhaust template (34) facing downward. The number of the upper exhaust template air cavities (343) is equal to the number of the lithium battery cover plate detection accommodating cavities (3222) and the positions are corresponding, and each upper exhaust template air cavity (343) has a number equal to the number of small cavities separated by the separation ridges. The small air cavities of the upper air template are connected by the small air cavity connecting air duct (344) of the upper air template. The left end port and the right end port of the small air cavity connecting air duct (344) of the upper air template are respectively blocked by the small air cavity connecting air duct port sealing plug (3441) of the upper air template. A lithium battery plate assisting falling device (345) is arranged in pairs on the upper air template (34) facing upward and at the position corresponding to the air cavity (343) of the upper air template. The lithium battery plate assisting falling device (345) includes a spring pressure plate (3451), a spring pressure plate fixing screw (3452), a lithium battery plate assisting falling pushing column (3453) and a pushing column as a supporting member. A spring (3454) is used, and a spring pressure plate (3451) is arranged in a pressure plate cavity (347) formed on the upper side of the air extraction template (34) facing upward, and corresponds to the air cavity (343) of the air extraction template. One end of the spring pressure plate (3451) is fixed to the air extraction template (34) in the pressure plate cavity (347) by a spring pressure plate fixing screw (3452), and one end of the spring pressure plate (3451) facing the lithium battery board assisting detachment push column (3453) is formed as a spring limiting end. The lithium battery board assisting detachment push column (3453) is arranged in a floating manner up and down at a position corresponding to the side facing downward of the spring limiting end, which is opened on the air extraction template (34) and is connected to the air extraction template. In the push column hole (346) communicated with the air cavity (343), the push column hole (346) also corresponds to the pressure plate cavity (347), a push column action spring supporting flange (34531) is formed at the upper end of the lithium battery plate assisting release push column (3453) and around the lithium battery plate assisting release push column (3453), a push column action spring (3454) is sleeved on the upper end of the lithium battery plate assisting release push column (3453), the upper end of the push column action spring (3454) is supported on the side of the spring limiting end of the spring pressure plate (3451) facing downward, and the lower end of the push column action spring (3454) is supported on the push column action spring supporting flange (34531);A vacuum upper template fixing screw hole (351) is provided on the upper template frame (35) and at each of the four corners; a vacuum upper template fixing screw (348) for fixing the vacuum upper template (34) and the lower side of the upper template frame (35) is provided on the vacuum upper template (34) and at a position corresponding to the vacuum upper template fixing screw hole (351); an upper template frame connecting screw hole (352) for connecting the upper template frame pressure device (36) is provided on the upper template frame (35) and at each of the four corners; a template clamping signal collector (3226) is fixed at the front end of the template (322) on the lithium battery cover plate to be tested, and a template clamping signal collector collision block (349) is provided at the front end of the vacuum upper template (34) and at a position corresponding to the template clamping signal collector (3226). ; 2. The lithium battery cover plate airtightness detection device of the lithium battery cover plate testing machine according to claim 1, characterized in that The upper template frame pressure device (36) comprises an upper template pressing plate (361), an upper template pressing plate pressure cylinder fixing plate (362), a pair of upper template pressing plate lifting cylinders (363) and a group of cylinder fixing plate columns (364). An upper template frame connecting screw (3611) is respectively provided at the four corners of the upper template pressing plate (361), and an upper template frame reset spring (3612) is sleeved on the upper template frame connecting screw (3611). The upper template pressing plate (361) is slidably matched with the upper template frame connecting screw (3611), and the upper template frame connecting screw (3611) is provided with a plurality of springs. The lower end of the upper template frame is screwed into the upper template frame connecting screw hole (352), the upper end of the upper template frame reset spring (3612) is supported on the downward side of the upper template pressure plate (361), and the lower end of the upper template frame reset spring (3612) is supported on the upward side of the upper template frame (35), the upper template pressure plate pressure cylinder fixing plate (362) is fixed to the top of a group of cylinder fixing plate columns (364), and a group of upper template pressure plate pressure cylinder fixing plate guide rod guide sleeves (3621) are fixed at intervals on the downward side of the upper template pressure plate pressure cylinder fixing plate (362). The guide sleeve (3621) of the plate pressure cylinder fixing plate guide rod is provided with an upper template pressure plate pressure cylinder fixing plate guide rod (3622). The lower end of the upper template pressure plate pressure cylinder fixing plate guide rod (3622) is fixed to the upper template pressure plate (361) by the upper template pressure plate pressure cylinder fixing plate guide rod screw (36221), and the upper end extends to the upper part of the upper template pressure plate pressure cylinder fixing plate (362) through the upper template pressure plate pressure cylinder fixing plate guide rod sleeve (3621). A pair of upper template pressure plate lifting cylinders (363) are arranged on the upper template pressure plate pressure cylinder fixing plate guide rod. The upper template lifting cylinder column (3631) of the pair of upper template pressure plate lifting cylinders (363) extends to the bottom of the upper template pressure plate pressure cylinder fixing plate (362) at a position corresponding to the upper template lifting cylinder column clearance hole (3623) opened on the upper template pressure plate pressure cylinder fixing plate (362) and is fixed to the upper template pressure plate (361) by cylinder column fixing screws (36311), and the bottom of a group of cylinder fixing plate columns (364) is fixed to the workbench (1).

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