Battery cell positioning device

Abstract

The utility model provides a battery cell positioning device. The battery cell positioning device comprises a bottom plate, a material pushing cylinder and a battery cell positioning mechanism, a pushing air cylinder is arranged on the bottom plate, the output end of the pushing air cylinder is arranged on a battery cell positioning mechanism, and the bottom of the battery cell positioning mechanism is slidably connected to the bottom plate; the battery cell positioning mechanism comprises a jacking cylinder, an ejection assembly, a transverse push-out assembly, a longitudinal push-out assembly, a transverse positioning plate and a longitudinal positioning plate; an ejection assembly is arranged at the output end of the jacking air cylinder, Z-direction movement of the ejection assembly can drive X-direction movement of the transverse push-out assembly and Y-direction movement of the longitudinal push-out assembly, and a battery cell positioning space can be formed among the transverse push-out assembly, the longitudinal push-out assembly, the transverse positioning plate and the longitudinal positioning plate. According to the utility model, the jacking cylinder, the ejection component, the transverse push-out component, the longitudinal push-out component, the transverse positioning plate and the longitudinal positioning plate are matched with one another, so that longitudinal and transverse positioning gaps can be eliminated, and the positioning accuracy of a battery cell is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy lithium batteries, and specifically relates to a core positioning device. Background Art

[0002] In the field of lithium battery production, problems of battery positioning often occur and precise positioning is required. For key processes such as battery welding and winding core insertion into the shell, precise positioning can improve the yield rate, reduce waste of resources, and lower production costs. However, during the battery manufacturing process, due to problems with the dimensional accuracy of processing or dimensional differences in incoming materials, there are differences in the dimensional consistency of batteries. Using a general fixed positioning method cannot guarantee precise positioning, which affects production and processing and may even lead to quality problems with the batteries, having a profound impact. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is how to precisely position the battery core.

[0004] The utility model solves the above technical problem by the following technical means:

[0005] A core positioning device includes a bottom plate (1), a pushing cylinder (2), and a core positioning mechanism (3); the pushing cylinder (2) is arranged on the bottom plate (1), and the output end of the pushing cylinder (2) is arranged on the core positioning mechanism (3), and the bottom of the core positioning mechanism (3) is slidably connected to the bottom plate (1); the core positioning mechanism (3) includes a lifting cylinder (32), an ejecting assembly (33), a lateral pushing assembly (34), a longitudinal pushing assembly (35), a lateral positioning plate (37), and a longitudinal positioning plate (38); the output end of the lifting cylinder (32) is provided with the ejecting assembly (33), and the Z-direction movement of the ejecting assembly (33) can drive the X-direction movement of the lateral pushing assembly (34) and the Y-direction movement of the longitudinal pushing assembly (35), and a core positioning space can be formed between the lateral pushing assembly (34), the longitudinal pushing assembly (35), the lateral positioning plate (37), and the longitudinal positioning plate (38).

[0006] Beneficial effects: Through the mutual cooperation of the bottom plate, the pushing cylinder, and the core positioning mechanism, the pushing cylinder can push the core positioning mechanism to move according to the position of the core. The mutual cooperation of the lifting cylinder, the ejecting assembly, the lateral pushing assembly, the longitudinal pushing assembly, the lateral positioning plate, and the longitudinal positioning plate in the core positioning mechanism can eliminate the longitudinal and lateral positioning gaps and ensure the positioning accuracy of the core.

[0007] Further, the jacking cylinder (32) is fixed inside the support base (31). On the bottom wall of the top plate of the support base (31), a transverse pushing component (34) and a longitudinal pushing component (35) are respectively fixed at the X-direction and Y-direction near the ejecting component (33). On the top wall of the top plate of the support base (31), a guiding backing plate (36) is fixed. On the top wall of the guiding backing plate (36), a transverse positioning plate (37) is fixed opposite to the output end of the transverse pushing component (34). On the top wall of the guiding backing plate (36), a longitudinal positioning plate (38) is fixed opposite to the output end of the longitudinal pushing component (35).

[0008] Beneficial effects: Through the setting of the support base, it plays a role in supporting and guiding, meets the rigidity requirements of the device, and provides an installation space for each mechanism.

[0009] Further, a longitudinal guiding groove is provided on the top plate of the support base (31) near the output end of the longitudinal pushing component (35), and a transverse guiding groove is provided on the top plate of the support base (31) near the output end of the transverse pushing component (34). A longitudinal positioning groove (361) is provided on the guiding backing plate (36) near the longitudinal guiding groove, and a transverse positioning groove (362) is provided on the guiding backing plate (36) near the transverse guiding groove. The output end of the longitudinal pushing component (35) can move along the Y-axis in the longitudinal guiding groove and the longitudinal positioning groove (361), and the output end of the transverse pushing component (34) can move along the X-axis in the transverse guiding groove and the transverse positioning groove (362).

[0010] Beneficial effects: Through the setting of the longitudinal guiding groove, the longitudinal positioning groove, the transverse guiding groove, and the transverse positioning groove, it has a guiding effect, the clamping position is accurate, and the situation of clamping deviation can be avoided.

[0011] Further, the ejecting component (33) includes a mounting seat (331), a first cam bearing (332), and a second cam bearing (333). The bottom wall of the mounting seat (331) is fixed on the output end of the jacking cylinder (32). A first cam bearing (332) is mounted on the top wall of the mounting seat (331) near the transverse pushing component (34), and a second cam bearing (333) is mounted on the top wall of the mounting seat (331) near the longitudinal pushing component (35). Both the first cam bearing (332) and the second cam bearing (333) can rotate around the axis.

[0012] Beneficial effects: Through the setting of the first cam bearing and the second cam bearing, a power source can be provided for the transverse pushing component and the longitudinal pushing component.

[0013] Further, the longitudinal pushing component (35) includes a first fixed seat (351), a first ejecting block (352), a first guide pin (353), a first spring (354), a first connecting plate (355), a first adjusting seat (356), and a longitudinal clamping plate (357). A first ejecting block (352) is rotatably connected to the middle of the first fixed seat (351). First guide pins (353) are slidably arranged through both sides of the first fixed seat (351). The extending ends of the first guide pins (353) are fixed on the first connecting plate (355). The first spring (354) is sleeved on the first guide pin (353) and fixed between the first connecting plate (355) and the first guide pin (353). A first adjusting seat (356) is fixed to the top end of the first connecting plate (355). A longitudinal clamping plate (357) is detachably connected to the first adjusting seat (356).

[0014] Beneficial effects: Through the mutual cooperation of the first fixed seat, the first ejecting block, the first guide pin, the first spring, the first connecting plate, the first adjusting seat, and the longitudinal clamping plate, the longitudinal positioning gap can be eliminated during the positioning of the battery cell.

[0015] Further, the first ejecting block (352) is L-shaped. The long side of the first ejecting block (352) faces the ejecting component (33). The bottom end of the long side of the first ejecting block (352) is hinged to the first fixed seat (351) through a first pin shaft (358). The short side of the first ejecting block (352) is in contact with the first connecting plate (355).

[0016] Beneficial effects: Through the setting of the shape of the first ejecting block, the conversion between Z-direction movement and Y-direction movement can be realized.

[0017] Further, the first adjusting seat (356) is T-shaped. The vertical plate of the first adjusting seat (356) is fixed on the first connecting plate (355). The horizontal plate of the first adjusting seat (356) is arranged along the Y-axis. A plurality of first adjusting holes (3561) are opened along the Y-axis on the horizontal plate of the first adjusting seat (356). The longitudinal clamping plate (357) is detachably connected in one of the first adjusting holes (3561).

[0018] Beneficial effects: Through the setting of the plurality of first adjusting holes, the position of the longitudinal clamping plate in different first adjusting holes can be adjusted, and the clamping requirements of battery cells of various sizes can be compatible.

[0019] Further, the structure of the transverse pushing component (34) is the same as that of the longitudinal pushing component (35).

[0020] Further, the output end of the pushing cylinder (2) is fixed to the battery cell positioning mechanism (3) through a spherical eye joint (21).

[0021] Beneficial effects: By setting the fish-eye joint, the rotational freedom degree is increased, which can avoid the blockage generated during the reciprocating motion of the pushing cylinder and make the operation smoother.

[0022] Furthermore, it further includes a limiting mechanism (4). The limiting mechanism (4) includes a first limiting plate (41), a second limiting plate (42), and a hydraulic buffer component (43). The first limiting plates (41) are respectively fixed at the four corners of the bottom plate (1) located at the battery cell positioning mechanism. The two first limiting plates (41) are arranged diagonally opposite to each other. The two second limiting plates (42) are arranged diagonally opposite to each other. Hydraulic buffer components (43) are fixed on both of the two second limiting plates (42). The buffer ends of the hydraulic buffer components (43) are arranged towards the battery cell positioning mechanism.

[0023] Beneficial effects: By setting the limiting mechanism, the vibration during movement can be reduced, and the positioning error caused by the vibration problem of the device can be reduced. Description of the Drawings

[0024] Figure 1 It is a working schematic diagram of the battery cell positioning device according to the first embodiment of the present invention;

[0025] Figure 2 It is a three-dimensional view of the battery cell positioning device according to the first embodiment of the present invention;

[0026] Figure 3 It is a three-dimensional view of the longitudinal pushing assembly in the battery cell positioning device according to the first embodiment of the present invention;

[0027] Figure 4 It is a three-dimensional view of the transverse pushing assembly in the battery cell positioning device according to the first embodiment of the present invention. Specific Embodiments

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1

[0030] As Figure 1 shown, this embodiment provides a battery cell positioning device, which includes a bottom plate 1, a pushing cylinder 2, a battery cell positioning mechanism 3, and a limiting mechanism 4.

[0031] As Figure 1As shown, on one side of the top wall of the bottom plate 1, a pushing cylinder 2 is fixed through a bracket 11. The output end of the pushing cylinder 2 is fixed on the battery cell positioning mechanism 3. The battery cell positioning mechanism 3 is slidably connected to the bottom plate 1. A limiting mechanism 4 is fixed on the bottom plate 1 near the periphery of the battery cell positioning mechanism 3.

[0032] As Figure 1 , Figure 2 shown, the battery cell positioning mechanism 3 includes a support base 31, a lifting cylinder 32, an ejecting assembly 33, a transverse pushing assembly 34, a longitudinal pushing assembly 35, a guiding backing plate 36, a transverse positioning plate 37, and a longitudinal positioning plate 38. Inside the support base 31, a lifting cylinder 32 is fixed through a connecting seat 39. The output end of the lifting cylinder 32 is fixed with an ejecting assembly 33. On the bottom wall of the top plate of the support base 31, a transverse pushing assembly 34 and a longitudinal pushing assembly 35 are respectively fixed at the X-direction and Y-direction near the ejecting assembly 33. A guiding backing plate 36 is fixed on the top wall of the top plate of the support base 31. A transverse positioning plate 37 is fixed on the top wall of the guiding backing plate 36 opposite to the output end of the transverse pushing assembly 34. A longitudinal positioning plate 38 is fixed on the top wall of the guiding backing plate 36 opposite to the output end of the longitudinal pushing assembly 35. The lifting cylinder 32 makes the ejecting assembly 33 move upward. The ejecting assembly 33 makes the transverse pushing assembly 34 move along the X-axis. At the same time, the ejecting assembly 33 makes the longitudinal pushing assembly 35 move along the Y-axis. The battery cell gripper 5 transports the battery cell to the rectangular space enclosed by the output ends of the transverse pushing assembly 34 and the longitudinal pushing assembly 35 and the transverse positioning plate 37 and the longitudinal positioning plate 38. The battery cell is jointly clamped and positioned by the output ends of the transverse pushing assembly 34 and the longitudinal pushing assembly 35 and the transverse positioning plate 37 and the longitudinal positioning plate 38.

[0033] As Figure 1 shown, the support base 31 includes a first connecting plate 311, support columns 312, and a second connecting plate 313. Support columns 312 are fixed at the four corners of the first connecting plate 311. The top walls of the support columns 312 are all fixed on the second connecting plate 313. A lifting cylinder 32 is fixed on the first connecting plate 311 through a connecting seat 39. The support columns 312 play a supporting role, meeting the rigidity requirements of the device, supporting the second connecting plate 313 and providing an installation space for the lifting cylinder 32.

[0034] As Figure 1 shown, the ejecting assembly 33 includes a mounting seat 331, a first cam bearing 332, and a second cam bearing 333. The bottom wall of the mounting seat 331 is fixed on the output end of the lifting cylinder 32. A first cam bearing 332 is installed on the top wall of the mounting seat 331 near the transverse pushing assembly 34. A second cam bearing 333 is installed on the top wall of the mounting seat 331 near the longitudinal pushing assembly 35. Both the first cam bearing 332 and the second cam bearing 333 can rotate around the axis.

[0035] As Figure 1 ,Figure 3 As shown, the longitudinal pushing component 35 includes a first fixed seat 351, a first top block 352, a first guide pin 353, a first spring 354, a first connecting plate 355, a first adjusting seat 356, and a longitudinal clamping plate 357; the first fixed seat 351 is fixed on the bottom wall of the second connecting plate 313 along the X-axis, and a first top block 352 is rotatably connected to the middle of the first fixed seat 351. The first top block 352 is L-shaped, and the long side of the first top block 352 faces the ejecting component 33. The bottom end of the long side of the first top block 352 is hinged to the first fixed seat 351 through a first pin shaft 358. The short side of the first top block 352 is in contact with the first connecting plate 355. First guide pins 353 are respectively arranged through both sides of the first fixed seat 351, and the extending ends of the first guide pins 353 are fixed on the first connecting plate 355. The first spring 354 is sleeved on the first guide pin 353, and the first guide pin 353 is concentrically connected with the first spring 354. Both ends of the first spring 354 are respectively fixed on the first connecting plate 355 and the pin head of the first guide pin 353. The first guide pin 353 is slidably connected to the first fixed seat 351 through a first oil-free bushing 359. The top end of the first connecting plate 355 is fixed with a first adjusting seat 356. The first adjusting seat 356 is T-shaped, the vertical plate of the first adjusting seat 356 is fixed on the first connecting plate 355, the horizontal plate of the first adjusting seat 356 is arranged along the Y-axis, and a plurality of first adjusting holes 3561 are formed along the Y-axis on the horizontal plate of the first adjusting seat 356. The longitudinal clamping plate 357 is fixed in one of the first adjusting holes 3561. By adjusting the position of the longitudinal clamping plate 357 in different first adjusting holes 3561, the clamping requirements of various sizes of battery cells can be compatible;

[0036] As Figure 1 、 Figure 2 、 Figure 4As shown in the figure, the horizontal pushing component 34 includes a second fixing seat 341, a second ejecting block 342, a second guide pin 343, a second spring 344, a second connecting plate 345, a second adjusting seat 346, and a horizontal clamping plate 347. The second fixing seat 341 is fixed on the bottom wall of the second connecting plate 313 along the Y-axis. A second ejecting block 342 is rotatably connected to the middle of the second fixing seat 341. The second ejecting block 342 is L-shaped, and the long side of the second ejecting block 342 faces the ejecting component 33. The bottom end of the long side of the second ejecting block 342 is hinged to the second fixing seat 341 through a second pin shaft 348. The short side of the second ejecting block 342 is in contact with the second connecting plate 345. Second guide pins 343 are penetrated through both sides of the second fixing seat 341, and the extending ends of the second guide pins 343 are fixed on the second connecting plate 345. The second spring 344 is sleeved on the second guide pin 343, and the second guide pin 343 is concentrically connected with the second spring 344. The two ends of the second spring 344 are respectively fixed on the second connecting plate 345 and the pin head of the second guide pin 343. The second guide pin 343 is slidably connected to the second fixing seat 341 through a second oil-free bushing 349. The top end of the second connecting plate 345 is fixed with a second adjusting seat 346. The second adjusting seat 346 is inverted L-shaped. The vertical plate of the second adjusting seat 346 is fixed on the second connecting plate 345. The horizontal plate of the second adjusting seat 346 is arranged along the X-axis. A plurality of second adjusting holes 3461 are formed along the X-axis on the horizontal plate of the second adjusting seat 346. The horizontal clamping plate 347 is fixed in one of the second adjusting holes 3461. By adjusting the position of the horizontal clamping plate 347 in different second adjusting holes 3461, the clamping requirements of various sizes of battery cells can be compatible.

[0037] As Figure 1 shown, the arrangement of the longitudinal pushing component 35 and the horizontal pushing component 34 can eliminate the positioning gaps in the longitudinal and horizontal directions, ensure the positioning accuracy of the battery cell, and at the same time facilitate the resistance-free picking of the battery cell and avoid scratching the surface of the battery cell.

[0038] As Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a longitudinal guide groove (not shown in the figure) is provided on the second connecting plate 313 near the first adjusting seat 356, and a transverse guide groove (not shown in the figure) is provided on the second connecting plate 313 near the second adjusting seat 346. A longitudinal positioning groove 361 is provided on the guide backing plate 36 near the longitudinal guide groove, and a transverse positioning groove 362 is provided on the guide backing plate 36 near the transverse guide groove. The vertical plate of the first adjusting seat 356 is located in the longitudinal guide groove, and the horizontal plate of the first adjusting seat 356 is located in the longitudinal positioning groove 361. The first adjusting seat 356 can move along the Y-axis in the longitudinal guide groove and the longitudinal positioning groove 361. The vertical plate of the second adjusting seat 346 is located in the transverse guide groove, and the horizontal plate of the second adjusting seat 346 is located in the transverse positioning groove 362. The second adjusting seat 346 can move along the X-axis in the transverse guide groove and the transverse positioning groove 362, which has a guiding effect, ensures accurate clamping positions, and avoids the occurrence of misclamping. The longitudinal clamping plate 357 and the transverse clamping plate 347 are in contact and arranged on the top of the guide backing plate 36. The longitudinal clamping plate 357, the transverse clamping plate 347, the transverse positioning plate 37, and the longitudinal positioning plate 38 enclose a rectangular space.

[0039] As Figure 1 shown, a connecting pin (not shown in the figure) is fixed on one side of the first connecting plate 311 near the pushing cylinder 2. There are two brackets 11 fixed on the bottom plate 1 at intervals along the X-axis. The pushing cylinder 2 is fixed between the brackets 11. The output end of the pushing cylinder 2 is sleeved and fixed on the connecting pin through a ball eye joint 21. The ball eye joint 21 is connected to the air connecting pin 319, which increases the rotational freedom and can avoid the blocking of the pushing cylinder 2 with the guide rail 12 and the slider 13 during the reciprocating motion, making the operation smoother. Guide rails 12 are fixed on the bottom plate 1 at intervals along the Y-axis below the battery cell positioning mechanism 3. Sliders 13 are slidably connected to each guide rail 12, and the top walls of the sliders 13 are fixed to the bottom of the first connecting plate 311. The limiting mechanism 4 includes a first limiting plate 41, a second limiting plate 42, and a hydraulic buffer member 43. The first limiting plates 41 and the second limiting plates 42 are respectively fixed at the four corners of the battery cell positioning mechanism 3 on the bottom plate 1. The two first limiting plates 41 are arranged diagonally opposite to each other, and the two second limiting plates 42 are arranged diagonally opposite to each other. Hydraulic buffer members 43 are fixed on the two second limiting plates 42, and the buffer ends of the hydraulic buffer members 43 are arranged towards the battery cell positioning mechanism 3. When the pushing cylinder 2 reciprocates between the battery cell shelling station and the battery cell blanking station, it can be accurately positioned, and the vibration during the movement can be reduced, and the positioning error caused by the vibration problem of the device can be reduced.

[0040] During use, first press the control button of the lifting cylinder 32. The lifting cylinder 32 automatically lifts, the first cam bearing 332 pushes the long side of the second top block 342, and the second cam bearing 333 pushes the long side of the first top block 352. The first top block 352 rotates under the action of the thrust. The short side of the first top block 352 pushes the first connecting plate 355, the first adjusting seat 356, and the longitudinal clamping plate 357 to move forward, realizing the automatic longitudinal relaxation of the battery cell. The second top block 342 rotates under the action of the thrust. The short side of the second top block 342 pushes the second connecting plate 345, the second adjusting seat 346, and the transverse clamping plate 347 to move leftward, realizing the automatic transverse relaxation of the battery cell. The battery cell gripper 5 places the battery cell housing into the rectangular space surrounded by the longitudinal clamping plate 357, the transverse clamping plate 347, the transverse positioning plate 37, and the longitudinal positioning plate 38. Then, control the lifting cylinder 32 to move downward. When the first spring 354 and the second spring 344 return to their free states, they will push the pin heads of the first guide pin 353 and the second guide pin 343 to move towards the first cam bearing 332 and the second cam bearing 333, and further drive the longitudinal clamping plate 357 and the transverse clamping plate 347 to move towards the battery cell, realizing the longitudinal and transverse clamping and positioning actions. This clamping method can solve the positioning error caused by the size difference of the battery cell housing, improve the positioning accuracy, eliminate the longitudinal positioning gap, and ensure the qualified rate of the core entering the housing. The transverse and longitudinal clamping and positioning are synchronized. The battery cell gripper 5 grabs the battery cell and performs the action of entering the housing. After the housing entry is completed, the pushing cylinder 2 pushes the mechanism assembly to the battery cell discharging station. After the battery cell is taken out by the battery cell gripper 5, the pushing cylinder 2 returns to its original position, and the above operations are repeated.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A core positioning device, characterized in that, It includes a bottom plate (1), a pusher cylinder (2), and a battery cell positioning mechanism (3); the pusher cylinder (2) is arranged on the bottom plate (1), the output end of the pusher cylinder (2) is arranged on the battery cell positioning mechanism (3), and the bottom of the battery cell positioning mechanism (3) is slidably connected to the bottom plate (1). The battery cell positioning mechanism (3) includes a lifting cylinder (32), an ejecting assembly (33), a transverse pushing assembly (34), a longitudinal pushing assembly (35), a transverse positioning plate (37), and a longitudinal positioning plate (38); the output end of the lifting cylinder (32) is provided with the ejecting assembly (33), the Z-direction movement of the ejecting assembly (33) can drive the X-direction movement of the transverse pushing assembly (34) and the Y-direction movement of the longitudinal pushing assembly (35), and a battery cell positioning space can be formed between the transverse pushing assembly (34), the longitudinal pushing assembly (35), the transverse positioning plate (37), and the longitudinal positioning plate (38).

2. The cell positioning device according to claim 1, characterized in that: The lifting cylinder (32) is fixed in the support seat (31), the transverse pushing assembly (34) and the longitudinal pushing assembly (35) are respectively fixed on the bottom wall of the top plate of the support seat (31) near the X-direction and Y-direction of the ejecting assembly (33), a guiding cushion plate (36) is fixed on the top wall of the top plate of the support seat (31), the transverse positioning plate (37) is fixed on the top wall of the guiding cushion plate (36) opposite to the output end of the transverse pushing assembly (34), and the longitudinal positioning plate (38) is fixed on the top wall of the guiding cushion plate (36) opposite to the output end of the longitudinal pushing assembly (35).

3. The cell positioning device according to claim 2, wherein: A longitudinal guiding groove is opened on the top plate of the support seat (31) near the output end of the longitudinal pushing assembly (35), a transverse guiding groove is opened on the top plate of the support seat (31) near the output end of the transverse pushing assembly (34), a longitudinal positioning groove (361) is opened on the guiding cushion plate (36) near the longitudinal guiding groove, a transverse positioning groove (362) is opened on the guiding cushion plate (36) near the transverse guiding groove, the output end of the longitudinal pushing assembly (35) can move along the Y-axis in the longitudinal guiding groove and the longitudinal positioning groove (361), and the output end of the transverse pushing assembly (34) can move along the X-axis in the transverse guiding groove and the transverse positioning groove (362).

4. The cell positioning device according to claim 1, characterized in that: The ejecting assembly (33) includes a mounting seat (331), a first cam bearing (332), and a second cam bearing (333), the bottom wall of the mounting seat (331) is fixed on the output end of the lifting cylinder (32), the first cam bearing (332) is mounted on the top wall of the mounting seat (331) near the transverse pushing assembly (34), the second cam bearing (333) is mounted on the top wall of the mounting seat (331) near the longitudinal pushing assembly (35), and both the first cam bearing (332) and the second cam bearing (333) can rotate around the axis.

5. The cell positioning device according to claim 1, wherein: The longitudinal pushing component (35) includes a first fixed seat (351), a first ejecting block (352), a first guide pin (353), a first spring (354), a first connecting plate (355), a first adjusting seat (356), and a longitudinal clamping plate (357). A first ejecting block (352) is rotatably connected to the middle of the first fixed seat (351). The first guide pins (353) are slidably arranged through both sides of the first fixed seat (351). The extending ends of the first guide pins (353) are fixed on the first connecting plate (355). The first spring (354) is sleeved on the first guide pin (353) and fixed between the first connecting plate (355) and the first guide pin (353). The top end of the first connecting plate (355) is fixed with a first adjusting seat (356). The longitudinal clamping plate (357) is detachably connected to the first adjusting seat (356).

6. The cell positioning device according to claim 5, wherein: The first ejecting block (352) is L-shaped. The long side of the first ejecting block (352) faces the ejecting component (33). The bottom end of the long side of the first ejecting block (352) is hinged to the first fixed seat (351) through a first pin shaft (358). The short side of the first ejecting block (352) is in contact with the first connecting plate (355).

7. A cell positioning device according to claim 5, wherein: The first adjusting seat (356) is T-shaped. The vertical plate of the first adjusting seat (356) is fixed on the first connecting plate (355). The horizontal plate of the first adjusting seat (356) is arranged along the Y-axis. A plurality of first adjusting holes (3561) are formed along the Y-axis on the horizontal plate of the first adjusting seat (356). The longitudinal clamping plate (357) is detachably connected to one of the first adjusting holes (3561).

8. A cell positioning device according to any one of claims 1-7, characterized in that: The structure of the transverse pushing component (34) is the same as that of the longitudinal pushing component (35).

9. The cell positioning device according to claim 1, wherein: The output end of the pushing cylinder (2) is fixed on the battery cell positioning mechanism (3) through a ball eye joint (21).

10. A core positioning device according to claim 1, characterized in that: It further includes a limiting mechanism (4). The limiting mechanism (4) includes a first limiting plate (41), a second limiting plate (42), and a hydraulic buffer component (43). The first limiting plates (41) and the second limiting plates (42) are respectively fixed at the four corners of the battery cell positioning mechanism on the bottom plate (1). The two first limiting plates (41) are arranged diagonally opposite to each other. The two second limiting plates (42) are arranged diagonally opposite to each other. The hydraulic buffer components (43) are fixed on the two second limiting plates (42). The buffer ends of the hydraulic buffer components (43) face the battery cell positioning mechanism.

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