Battery formation air pressure clamp machine

Abstract

The battery formation air pressure clamp machine comprises a clamp base, a driving device and a type changing adjusting mechanism arranged on the clamp base; the clamp base comprises front and rear support plates arranged in parallel and at intervals, and a plurality of guide rods and connecting rods arranged in parallel and at intervals between the front and rear support plates; a plurality of battery clamping plates arranged in parallel and at intervals are slidably arranged on the guide rods; one pole lug electric connection device is arranged at each of left and right ends of the battery clamping plate, the pole lug electric connection devices are divided into two columns, the pole lug electric connection devices in the same column are longitudinally aligned and are connected in series on corresponding longitudinal adjusting rods; the driving device comprises a driving part, a bidirectional screw rod mechanism, a front push plate and a rear push plate; the type changing adjusting mechanism comprises two sets of rotating rods, transverse sliding blocks and transverse adjusting rods arranged side by side on the rear support plate. The battery formation air pressure clamp machine has the advantages that the use of false batteries can be avoided, the production efficiency and the space utilization rate are improved, and the battery type changing is convenient.

Description

Technical Field

[0001] This invention relates to a battery formation air compressor clamping machine. Background Technology

[0002] Power pouch batteries are one of the main batteries used in new energy vehicles. In the later stages of production, power pouch batteries need to undergo high-temperature formation to activate the cells. In the formation process, the battery needs to be charged and discharged through a drive box. In the existing process, the power battery is placed between a pair of clamps in a high-temperature fixture machine. The clamps apply high temperature and pressure to the power battery, while the contact plate probe connection assembly clamps the battery tabs to perform a charge and discharge formation process to activate the cells.

[0003] Existing fixture-based formation equipment can only pressurize when the battery is fully loaded. If the battery cannot fill a fixture, a dummy battery is needed to supplement it. However, storing dummy batteries is time-consuming and space-consuming. If dummy batteries are not used for pressurization, it will damage the equipment. Furthermore, existing fixture-based formation equipment pressurizes the battery by moving it unilaterally, resulting in high friction in the later stages of movement and excessive pressure deviation between the front and rear ends. Finally, existing fixture-based formation equipment cannot quickly adapt to different battery models. Changing lines for different batteries each time wastes time and production, and requires many replacement parts, leading to material cost waste. Summary of the Invention

[0004] To address the aforementioned issues, this invention proposes a battery formation air compressor fixture machine, which avoids the use of dummy batteries, improves production efficiency and space utilization, reduces friction by changing the direction of movement, ensures stable pressurization, facilitates convenient battery replacement, and enables diversified production.

[0005] The battery formation air compressor fixture machine of the present invention is characterized in that it includes a fixture base and a drive device and a change adjustment mechanism disposed on the fixture base;

[0006] The fixture base includes a front support plate and a rear support plate arranged in parallel and spaced apart. Several parallel guide rods and connecting rods are provided between the front support plate and the rear support plate. The axis of the guide rod is defined as longitudinal, and one direction of the longitudinal direction is defined as forward and the other direction is defined as backward. Several parallel and spaced battery clamps are slidably passed through the guide rods. The battery clamps form a row in the longitudinal direction. Adjacent battery clamps are connected to each other, and the space between two adjacent battery clamps forms a work station for clamping batteries. The battery clamps are rectangular. The extension direction of one side of the battery clamp is defined as the left-right direction, and the extension direction of the other side is defined as the up-down direction. A tab power connection device is provided at each of the left and right ends of the battery clamp. The tab power connection devices are divided into two rows. The tab power connection devices in the same row are aligned longitudinally front and back and connected in series on the corresponding longitudinal adjusting rod.

[0007] The drive unit includes a drive unit, a bidirectional threaded screw mechanism, a front push plate, and a rear push plate. The drive unit is mounted on the front support plate. The bidirectional threaded screw mechanism is longitudinally arranged between the front support plate and the rear support plate. The bidirectional threaded screw mechanism has a moving part that moves in opposite directions or in the same direction along the longitudinal direction. The two moving parts are respectively connected to the front push plate and the rear push plate. The front push plate passes through a guide rod arranged between the front support plate and the frontmost battery clamping plate. The rear push plate is arranged on a guide rod between the rear support plate and the rearmost battery clamping plate, and is respectively connected to their respective adjacent battery clamping plates.

[0008] There are two sets of battery conversion adjustment mechanisms, arranged side by side on the rear support plate. Each set of conversion adjustment mechanisms is connected to a row of tab clamping devices to adjust the left and right spacing between the tab clamping devices on the battery clamping plate to accommodate different battery models. Each set of conversion adjustment mechanisms includes a rotating rod, a lateral sliding block, and a lateral adjusting rod. The end of the lateral adjusting rod is fixed on the rear support plate through a fixing plate and is arranged along the left and right direction of the battery clamping plate. The lateral sliding block is slidably mounted on the lateral adjusting rod and connected to the corresponding longitudinal adjusting rod. The rotating rod is rotatably mounted on the rear support plate and connected to the lateral sliding block through a transmission assembly to convert the rotation of the rotating rod into the left and right movement of the lateral sliding block.

[0009] Furthermore, the electrode contact device includes an upper slider slidably disposed above the battery pressure plate, a lower slider slidably disposed below the battery pressure plate, an electrode contact plate disposed in front of the battery pressure plate, an airbag disposed between the electrode contact plate and the battery pressure plate, and an airbag pressure plate located behind the battery pressure plate. The upper slider and the lower slider are provided with longitudinal adjustment holes on their sides, and longitudinal adjustment rods are slidably inserted through the longitudinally aligned longitudinal adjustment holes, so that the longitudinally aligned electrode contact device is connected in series to the corresponding longitudinal adjustment rods. The upper and lower ends of the electrode contact plate, the airbag, and the airbag pressure plate are respectively connected to the upper slider and the lower slider. The end of the battery pressure plate is inserted into the collar formed by the airbag, the airbag pressure plate, the upper slider, and the lower slider. The airbag is strip-shaped and connected to an external air source. The electrode contact plate is connected to an external power source through current lines and voltage lines.

[0010] Furthermore, the bidirectional threaded screw mechanism includes a bidirectional threaded screw and a screw nut mounted on the bidirectional threaded screw. The front and rear ends of the bidirectional threaded screw are rotatably connected to the front support plate and the rear support plate, respectively. The front and rear ends of the bidirectional threaded screw are respectively provided with external thread sections with opposite directions of rotation, and each external thread section meshes with the screw nut sleeved on it. The two screw nuts are fixedly connected to the front push plate and the rear push plate, respectively, as the moving parts of the bidirectional threaded screw mechanism.

[0011] Furthermore, the drive unit includes a motor for providing driving force, a reducer for reducing the driving force of the motor, and a gear transmission component for transmitting power. The motor, reducer, and gear transmission component are disposed on the front side of the front support plate. The power output shaft of the motor is connected to the power input end of the reducer, and the power output end of the reducer is connected to the power input end of the bidirectional threaded screw through the gear transmission component.

[0012] Furthermore, a pressure detection device is provided between the rear support plate and the rearmost battery clamp to detect the pressure on the battery clamp. This device includes a spring assembly for cushioning and a pressure sensor for measuring the pressure on the battery clamp. The front part of the spring assembly is connected to the rearmost battery clamp, and the rear part is connected to the rear push plate.

[0013] Furthermore, the battery pressure plate includes a pressure plate body for separating and clamping the battery, a fixing component, and a chain assembly. The pressure plate body is rectangular, and a fixing component with a longitudinal through hole is fixed to the upper part of each of its left and right ends. The lower part of the left and right ends of the pressure plate body is provided with a chain assembly. The chain assemblies of the pressure plate body are connected together by a chain to realize the linkage of the pressure plate body in the longitudinal direction.

[0014] Furthermore, the longitudinal adjustment hole is a rectangular hole adapted to the longitudinal adjustment rod.

[0015] Furthermore, several guide blocks are provided along the upper edge of the pressure plate.

[0016] Furthermore, the front support plate and the rear support plate are symmetrically arranged L-shaped plates.

[0017] The working process of this invention is as follows:

[0018] 1) Adjust the spacing between the two rows of electrode connection devices according to the battery model so that the battery electrodes are longitudinally aligned with the electrode connection devices.

[0019] 2) The battery is vertically inserted into the work station by the guide block. The distance between the battery clamping plates 2 is adjusted in both directions by the drive equipment so that the battery is clamped by the two battery clamping plates. The battery tabs are pressed together by the two tab connecting devices aligned in front and behind. At this time, the tab contact plate and the airbag pressure plate on the adjacent battery clamping plate in front clamp the tabs together, so as to realize the reliable connection between the battery tabs and the tab connecting devices.

[0020] 3) If there are no batteries in the workstation, inflate the airbag. After the airbag is inflated, it will push out the tab contact plate and the airbag pressure plate longitudinally, so that the tab contact plate will contact the airbag pressure plate on the adjacent battery clamp in front.

[0021] 4) The current and voltage lines at the lower end of the electrode contact plate are connected to the external power supply box to carry out the charging and discharging formation process of the power battery.

[0022] 5) After the battery formation and capacity testing is completed, the drive equipment adjusts the distance between the battery clamps in both directions to loosen the battery by the two battery clamps, and at the same time, the airbag is deflated to remove the battery from the workstation.

[0023] The beneficial effects of this invention are as follows:

[0024] 1. By applying pressure to both sides of the battery simultaneously through longitudinal forward and backward movement, the stroke is reduced, thereby reducing friction, optimizing the problem of excessive pressure deviation, making the pressurization process more stable, and improving productivity;

[0025] 2. By changing the spacing between the electrode connection devices, battery replacement can be achieved conveniently and quickly;

[0026] 3. By using an electrode tab connection device with an air bladder, the use of dummy batteries can be avoided, achieving battery-free air pressure, which improves production efficiency and space utilization. Attached Figure Description

[0027] Figure 1 This is one of the structural schematic diagrams of the present invention.

[0028] Figure 1a for Figure 1 Enlarged view of point A.

[0029] Figure 2 This is the second structural diagram of the present invention.

[0030] Figure 3 This is the third structural diagram of the present invention.

[0031] Figure 4 This is the fourth structural diagram of the present invention.

[0032] Figure 5 This is a top view of the present invention.

[0033] Figure 6 This is a schematic diagram of the battery clamp and electrode connection device of the present invention.

[0034] Figure 7 This is a front view of the battery clamp and electrode connection device of the present invention. Detailed Implementation

[0035] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0037] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0043] The battery formation air compressor fixture machine of the present invention includes a fixture base 1 and a drive device 4 and a change adjustment mechanism 5 disposed on the fixture base 1;

[0044] The clamp base 1 includes a front support plate 11 and a rear support plate 12 arranged in parallel and spaced apart. Several parallel guide rods 13 and connecting rods 14 are provided between the front support plate 11 and the rear support plate 12. The axis of the guide rod 13 is defined as longitudinal, and one direction of the longitudinal direction is defined as forward and the other direction is defined as backward. Several parallel and spaced battery clamps 2 are slidably passed through the guide rods 13. The guide rods 13 are used to guide the battery clamps 2 to slide along the longitudinal direction. The battery clamps 2 form a row in the longitudinal direction. The battery clamps 2 are perpendicular to the longitudinal direction, and adjacent battery clamps 2 are connected to each other. The space between two adjacent battery clamps 2 forms a work station for clamping batteries. The battery clamps 2 are rectangular. The extension direction of one side of the battery clamp 2 is defined as the left-right direction, and the extension direction of the other side is defined as the up-down direction. A tab power connection device 3 is provided at each of the left and right ends of the battery clamp 2. The tab power connection devices 3 are divided into two rows. The tab power connection devices 3 in the same row are aligned front and back in the longitudinal direction and are slidably connected in series on the corresponding longitudinal adjustment rods 16.

[0045] The drive device 4 includes a drive unit 41, a bidirectional threaded screw mechanism 42, a front push plate 43, and a rear push plate 44. The drive unit 41 is mounted on the front support plate 11. The bidirectional threaded screw mechanism 42 is longitudinally mounted between the front support plate 11 and the rear support plate 12. The bidirectional threaded screw mechanism 42 has a moving part that moves in opposite directions or in the longitudinal direction. The two moving parts are respectively connected to the front push plate 43 and the rear push plate 44. The front push plate 43 passes through the guide rod 13 mounted between the front support plate 11 and the frontmost battery clamp 2. The rear push plate 44 is mounted on the guide rod 13 mounted between the rear support plate 12 and the rearmost battery clamp 2, and is respectively connected to their respective adjacent battery clamps 2.

[0046] There are two sets of type-changing adjustment mechanisms 5, arranged side by side on the rear support plate 12. Each set of type-changing adjustment mechanism 5 is connected to a row of tab clamping devices 2 to adjust the left and right spacing between the tab clamping devices 2 on the battery clamping plate 2 to accommodate different battery models. Each set of type-changing adjustment mechanism 5 includes a rotating rod 51, a transverse sliding block 54 and a transverse adjusting rod 55. The end of the transverse adjusting rod is set on the rear support plate 12 through two oppositely arranged fixing plates 53 and is arranged along the left and right direction of the battery clamping plate 2. The transverse sliding block 54 is slidably set on the transverse adjusting rod 55 and is connected to the longitudinal adjusting rod 16 of the corresponding row of tab clamping devices 2. The rotating rod 31 is rotatably set on the rear support plate 12 and is connected to the transverse sliding block 54 through a transmission assembly 52 to convert the rotation of the rotating rod 52 into the left and right movement of the transverse sliding block 54.

[0047] In some embodiments of the present invention, the bidirectional threaded screw mechanism 42 includes a bidirectional threaded screw 421 and a screw nut 422 disposed on the bidirectional threaded screw 421. The front and rear ends of the bidirectional threaded screw 421 are rotatably connected to the front support plate 11 and the rear support plate 12, respectively. The front and rear ends of the bidirectional threaded screw 421 are respectively provided with external thread sections with opposite directions of rotation. Each external thread section meshes with the screw nut 422 sleeved thereon. The two screw nuts 422 are fixedly connected to the front push plate 43 and the rear push plate 44, respectively, as the moving parts of the bidirectional threaded screw mechanism 42.

[0048] In some embodiments of the present invention, the direction closer to the battery clamp plate 2 in the electrode contact device 3 is defined as the inner side, and the opposite direction is defined as the outer side. The electrode contact device 3 includes an upper slider 31 slidably disposed on the upper side of the battery clamp plate 2, a lower slider 32 slidably disposed below the battery clamp plate 2, an electrode contact plate 33 disposed in front of the battery clamp plate 2, an airbag 34 disposed between the electrode contact plate 33 and the battery clamp plate 2, and an airbag clamp plate 35 located behind the battery clamp plate 2. The upper slider 31 and the lower slider 32 are provided with longitudinal adjustment holes 36 on their sides. Longitudinal adjustment rods 16 are slidably inserted into the aligned longitudinal adjustment holes, and longitudinally aligned electrode connection devices 3 are connected in series to the corresponding longitudinal adjustment rods 16; the upper and lower ends of the electrode contact plate 33, airbag 34 and airbag pressure plate 35 are respectively connected to the upper slider 31 and the lower slider 32; the end of the battery pressure plate 2 is inserted into the collar formed by the airbag 34, airbag pressure plate 35 and the upper slider 31 and the lower slider 32; the airbag 34 is strip-shaped and connected to an external air source; the electrode contact plate 33 is connected to an external power source through current line 331 and voltage line 332.

[0049] In some embodiments of the present invention, the drive unit 41 includes a motor 411 for providing driving force, a reducer 412 for reducing the driving force of the motor, and a gear transmission member 413 for transmitting power. The motor 411, the reducer 412 and the gear transmission member 413 are disposed on the front side of the front support plate 11. The power output shaft of the motor 411 is connected to the power input end of the reducer 412. The power output end of the reducer 412 is connected to the power input end of the bidirectional threaded screw 421 through the gear transmission member 413.

[0050] In some embodiments of the present invention, a pressure detection device 15 is provided between the rear support plate 112 and the rearmost battery clamp 2 for detecting the pressure on the battery clamp 2. The device includes a spring assembly 151 for buffering and a pressure sensor 152 for measuring the pressure on the battery clamp 2. The front part of the spring assembly 151 is connected to the rearmost battery clamp 2, and the pressure sensor 152 is provided between the rear part and the rear push plate 44.

[0051] In some embodiments of the present invention, the battery pressure plate 2 includes a pressure plate body 21 for separating and clamping the battery, a fixing component 22, and a chain assembly 23. The pressure plate body 21 is rectangular, and a fixing component 22 with a longitudinal through hole 221 is fixedly provided on the upper part of each of its left and right ends. The end of the fixing component 22 is provided with a chain assembly 23. The chain assemblies 23 of the fixing components 22 are connected together by a chain to realize the linkage of the pressure plate body 21 in the longitudinal direction.

[0052] In some embodiments of the present invention, the longitudinal adjustment hole is a rectangular hole adapted to the longitudinal adjustment rod.

[0053] In some embodiments of the present invention, the upper edge of the pressure plate 21 is provided with several guide blocks 24.

[0054] In some embodiments of the present invention, the front support plate 11 and the rear support plate 12 are symmetrically arranged L-shaped plates.

[0055] In this invention, the clamp base 1 is fixedly mounted on the upper worktable of the frame. Because the battery pressure plates 2 are interconnected, all battery pressure plates 2 can achieve bidirectional axial translation along the longitudinal direction, thereby adjusting the spacing between adjacent battery pressure plates 2 to clamp or release the battery. The battery pressure plates 2 are mounted on guide rods 13. The air bladders within the battery pressure plates 2 can be pressurized when the battery is full or not, achieving air pressure. Two sets of conversion adjustment mechanisms 5 are installed side-by-side on the outer side of the rear support plate 12 of the clamp base 1. The lateral sliding block of the conversion adjustment mechanism is connected to the longitudinal adjustment rod 16 of the series electrode tab connection device 3, allowing the two rows of electrode tab connection devices 3 to move left and right along the battery pressure plates 2 under the drive of the corresponding conversion adjustment mechanisms 5, thereby adjusting the spacing between the two rows of electrode tab connection devices 3 to accommodate different battery models, thus achieving battery conversion.

[0056] The working process of this invention is as follows:

[0057] 1) Adjust the spacing between the two rows of electrode connection devices 2 according to the battery model so that the battery electrodes are longitudinally aligned with the electrode connection devices 2.

[0058] 2) The battery is guided vertically into the work station by the guide block. The distance between the battery clamping plates 2 is adjusted in both directions by the drive device 4 so that the battery is clamped by the two battery clamping plates 2. The battery tabs are pressed together by the two tab connecting devices 2 aligned in front and behind. At this time, the tab contact plate 33 and the airbag pressure plate 35 on the adjacent battery clamping plate 2 in front clamp the tabs together, so as to realize the reliable connection between the battery tabs and the tab connecting device 2.

[0059] 3) Inflate the airbag 34. After inflation, the airbag 34 expands and pushes outward along the longitudinal direction, extending the tab contact plate 33 and the airbag pressure plate 35. If there is a battery in the workstation, the tab contact plate 33 and the airbag pressure plate 35 on the adjacent battery clamping plate 2 in front of it will clamp the tab together, so that the battery tab is reliably connected to the tab connection device 2. If there is no battery in the workstation, the tab contact plate 33 and the airbag pressure plate 35 on the adjacent battery clamping plate 2 in front of it will directly contact each other.

[0060] 4) The current and voltage lines at the lower end of the electrode contact plate 33 are connected to the external power supply box to carry out the charging and discharging formation process of the power battery.

[0061] 5) After the battery formation and capacity testing is completed, the drive device 4 adjusts the distance between the battery clamps 2 in both directions so that the battery is relaxed by the two battery clamps 2. At the same time, the airbag is deflated and the battery is taken out of the workstation.

[0062] In step 3), an airbag is used to pressurize the battery, which can pressurize a full battery and avoid using a dummy battery when the battery is low, thus achieving empty pressure without a battery; it can also conveniently and quickly change the distance between the replacement adjustment mechanisms to achieve battery replacement.

[0063] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A battery formation air compressor fixture machine, characterized in that, Includes a fixture base (1) and a drive device (4) and a change adjustment mechanism (5) mounted on the fixture base (1); The clamp base (1) includes a front support plate (11) and a rear support plate (12) arranged in parallel and spaced apart. Several parallel guide rods (13) and connecting rods (14) are provided between the front support plate (11) and the rear support plate (12). The axis of the guide rod (13) is defined as longitudinal, and one direction of the longitudinal direction is defined as forward and the other direction is defined as backward. Several parallel and spaced battery clamps (2) are slidably passed through the guide rods (13). The battery clamps (2) form a queue in the longitudinal direction. Adjacent battery clamps (2) are connected to each other, and the space between adjacent battery clamps (2) forms a battery clamping station. The battery clamps (2) are rectangular. The extension direction of one side of the battery clamp (2) is defined as the left-right direction, and the extension direction of the other side is defined as the up-down direction. The left and right ends of the battery clamps (2) are... Each part is provided with a tab connection device (3), and the tab connection devices (3) are divided into two rows on the left and right. The tab connection devices (3) in the same row are aligned longitudinally front and back. The tab connection device (3) includes an upper slider (31) that is slidably set on the battery clamp (2), a lower slider (32) that is slidably set on the battery clamp (2), a tab contact plate (33) set in front of the battery clamp (2), an airbag (34) set between the tab contact plate (33) and the battery clamp (2), and an airbag pressure plate (35) located behind the battery clamp (2). The upper slider (31) and the lower slider (32) are provided with longitudinal adjustment holes on their sides. A longitudinal adjustment rod (16) can be slidably passed through the longitudinally aligned longitudinal adjustment holes. The longitudinally aligned tab connection devices (3) are slidably connected in series on the corresponding longitudinal adjustment rod (16). The drive device (4) includes a drive unit (41), a bidirectional threaded screw mechanism (42), a front push plate (43), and a rear push plate (44). The drive unit (41) is mounted on the front support plate (11). The bidirectional threaded screw mechanism (42) is mounted longitudinally between the front support plate (11) and the rear support plate (12). The bidirectional threaded screw mechanism (42) has a moving part that moves in opposite directions or in the same direction longitudinally. The two moving parts are connected to the front push plate (43) and the rear push plate (44) respectively. The front push plate (43) is mounted on the guide rod (13) between the front support plate (11) and the frontmost battery clamp (2). The rear push plate (44) is mounted on the guide rod (13) between the rear support plate (12) and the rearmost battery clamp (2), and is connected to the adjacent battery clamp (2) respectively. There are two sets of type-changing adjustment mechanisms (5), which are arranged side by side on the rear support plate (12). Each set of type-changing adjustment mechanisms (5) is connected to a row of electrode connection devices (3) to adjust the left and right spacing between the electrode connection devices (3) on the battery clamp (2) to accommodate different battery models. Each set of type-changing adjustment mechanisms (5) includes a rotating rod (51), a transverse sliding block (54) and a transverse adjustment rod (55). The end of the transverse adjustment rod is set on the rear support plate (12) through a fixing plate (53) and arranged along the left and right direction of the battery clamp (2). The transverse sliding block (54) is slidably set on the transverse adjustment rod (55) and connected to the corresponding longitudinal adjustment rod (16). The rotating rod (51) is rotatably set on the rear support plate (12) and connected to the transverse sliding block (54) through a transmission assembly (52) to convert the rotation of the rotating rod (51) into the left and right movement of the transverse sliding block (54).

2. The battery formation air compressor fixture machine as described in claim 1, characterized in that: The bidirectional threaded screw mechanism (42) includes a bidirectional threaded screw (421) and a screw nut (422) set on the bidirectional threaded screw (421). The front and rear ends of the bidirectional threaded screw (421) are rotatably connected to the front support plate (11) and the rear support plate (12), respectively. The front and rear ends of the bidirectional threaded screw (421) are respectively provided with external thread sections with opposite directions of rotation. Each external thread section meshes with the screw nut (422) sleeved on it. The two screw nuts (422) are fixedly connected to the front push plate (43) and the rear push plate (44) as the moving parts of the bidirectional threaded screw mechanism (42).

3. A battery formation air compressor clamping machine as described in claim 1 or 2, characterized in that: The upper and lower ends of the tab contact plate (33), airbag (34) and airbag pressure plate (35) are respectively connected to the upper slider (31) and lower slider (32); the end of the battery clamp plate (2) is inserted into the collar formed by the airbag (34), airbag pressure plate (35) and upper slider (31) and lower slider (32); the airbag (34) is strip-shaped and connected to an external air source; the tab contact plate (33) is connected to an external power source through current line (331) and voltage line (332).

4. The battery formation air compressor fixture machine as described in claim 3, characterized in that: The longitudinal adjustment hole is a rectangular hole adapted to the longitudinal adjustment rod.

5. The battery formation air compressor fixture machine as described in claim 4, characterized in that: The drive unit (41) includes a motor (411) for providing driving force, a reducer (412) for reducing the driving force of the motor, and a gear transmission component (413) for transmitting power. The motor (411), reducer (412) and gear transmission component (413) are located on the front side of the front support plate (11). The power output shaft of the motor (411) is connected to the power input end of the reducer (412). The power output end of the reducer (412) is connected to the power input end of the bidirectional threaded screw (421) through the gear transmission component (413).

6. The battery formation air compressor fixture machine as described in claim 5, characterized in that: A pressure detection device (15) is provided between the rear support plate (12) and the battery clamp (2) at the rear end, for detecting the pressure on the battery clamp (2), including a spring assembly (151) for buffering and a pressure sensor (152) for measuring the pressure on the battery clamp (2). The front part of the spring assembly (151) is connected to the battery clamp (2) at the rear end, and the pressure sensor (152) is provided between the rear part and the rear push plate (44).

7. The battery formation air compressor fixture machine as described in claim 6, characterized in that: The battery clamp (2) includes a pressure plate body (21) for separating and clamping the battery, a fixing component (22) and a chain assembly (23). The pressure plate body (21) is rectangular, and a fixing component (22) with a longitudinal through hole (221) is fixed on the upper part of each of its left and right ends. The lower part of the left and right ends of the pressure plate body (21) is provided with a chain assembly (23). The chain assemblies (23) of the pressure plate body (21) are connected together by a chain to realize the linkage of the pressure plate body (21) in the longitudinal direction.

8. The battery formation air compressor fixture machine as described in claim 7, characterized in that: The upper edge of the pressure plate (21) is provided with several guide blocks (24).

9. A battery formation air compressor clamping machine as described in claim 1, characterized in that: The front support plate (11) and the rear support plate (12) are symmetrically arranged L-shaped plates.

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